Circuit breaker for automobile circuit

Abstract

The utility model discloses a circuit breaker for an automobile circuit, and the circuit breaker comprises a circuit breaking mechanism which comprises a circuit breaker main body, and the bottom end of the circuit breaker main body is provided with a pedestal; the number of the heat dissipation mechanisms is two, the two heat dissipation mechanisms are arranged on the two sides of the circuit breaker body respectively, each heat dissipation mechanism comprises a shell, and the side, facing the circuit breaker body, of each shell is provided with a heat conduction piece; the two connecting mechanisms are symmetrically distributed at the top end of the circuit breaker main body, each connecting mechanism comprises a connecting seat, an inserting groove is formed in the connecting seat, a limiting plate is slidably mounted in the inserting groove, a screw is rotatably mounted at the top end of the limiting plate, and the top end of the screw penetrates through the connecting seat and extends out of the upper end surface of the connecting seat; the automobile circuit breaker provided by the utility model has the advantages of convenient and fast wire connection and good heat dissipation performance, and solves the problem that the maintenance cost is increased due to wire loss during later maintenance of the current automobile circuit breaker.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely is a circuit breaker for automobile circuit. BACKGROUND

[0002] The circuit breaker for automobile circuit is an important device for protecting the automobile electrical system, and the automobile circuit breaker usually works based on thermal effect or electromagnetic effect. When the current in the circuit exceeds the rated current of the circuit breaker, the heating element inside the circuit breaker will heat up due to the excessive current, causing the bimetallic strip to deform. Alternatively, the electromagnetic coil will generate sufficient magnetic field force to make the trip mechanism act, thereby cutting off the circuit to prevent the electrical equipment in the circuit from being damaged due to overload or short circuit.

[0003] The existing circuit breaker is usually used to fix the electric wire by using two threaded columns and bolts. However, this fixing method is not only difficult to fix, but also causes damage to the end of the electric wire after disassembly. When fixed again, the electric wire needs to be peeled off and fixed again, resulting in an increase in maintenance cost. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a circuit breaker for automobile circuit, which has the advantages of convenient and quick connection of electric wire and good heat dissipation performance, and solves the problem of electric wire loss and increased maintenance cost during later maintenance of the current automobile circuit breaker.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a circuit breaker for automobile circuit, comprising: a circuit breaking mechanism, the circuit breaking mechanism comprises a circuit breaker main body, and the bottom end of the circuit breaker main body is provided with a base;

[0006] A heat dissipation mechanism is provided, and two heat dissipation mechanisms are arranged on both sides of the circuit breaker main body, and each heat dissipation mechanism comprises an outer shell, and the side of the outer shell facing the circuit breaker main body is provided with a heat conduction fin;

[0007] A connecting mechanism is provided, and two connecting mechanisms are symmetrically arranged at the top end of the circuit breaker main body, each connecting mechanism comprises a connecting seat, an insertion slot is formed in the connecting seat, a limiting plate is slidably installed in the insertion slot, a screw is rotatably installed at the top end of the limiting plate, and the top end of the screw penetrates through the connecting seat and extends out of the upper end face of the connecting seat.

[0008] Preferably, the base extends out of the side surface of the circuit breaker main body at both ends and is provided in an arc shape, and a through hole is formed at both ends of the base.

[0009] Preferably, the outer shell is provided in a U shape in vertical cross section, the inner side of the heat conduction fin is attached to the outer side of the circuit breaker main body, and a plurality of heat dissipation columns are arranged in a staggered manner on the outer side of the heat conduction fin.

[0010] Preferably, one end of each of the heat dissipation columns is fixedly connected with the heat conduction sheet, and a gap is arranged between the other end and the inner side of the shell.

[0011] Preferably, a threaded groove is arranged on the top end of the connecting seat and is screwed with the screw, and the bottom end of the limiting plate is outwardly convex and is provided with an arc surface, and a plurality of limiting strips are equidistantly arranged on the arc surface.

[0012] Preferably, a fitting groove is arranged on the inside of the bottom end of the fitting groove, and a protective surface is arranged on both ends of the fitting groove, and a plurality of limiting grooves are arranged in the fitting groove and are opposite to the limiting strips, and a chamfering structure is arranged on both ends of the limiting groove.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a connecting seat, a fitting groove, a limiting plate, a screw, a threaded groove, a limiting strip, a fitting groove and a limiting groove are arranged, the limiting plate is driven to slide in the fitting groove through the screw and the threaded groove, the limiting plate and the fitting groove clamp the electric wire, a plurality of limiting strips are arranged on the bottom end of the limiting plate, and a plurality of limiting grooves are arranged in the fitting groove, the connecting strength between the connecting mechanism and the electric wire is increased, the electric wire is fixed through the lifting mode of the limiting plate in the fitting groove, maintenance is facilitated in the later period, the electric wire is not damaged, dismounting is facilitated, and maintenance cost is reduced.

[0015] 2、The utility model discloses a shell, a heat conduction sheet and a heat dissipation column are arranged, the heat conduction sheet is attached to the side of the circuit breaker, the circuit breaker is heat-conducted through the heat conduction sheet, heat is transferred to a plurality of heat dissipation columns, air is transported in the shell through the air current generated when the automobile travels or the ventilation system in the automobile, and heat is taken away, and the operation stability of the circuit breaker is improved. ACCURACY OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a split schematic diagram of the heat dissipation mechanism in the utility model; Figure 1

[0018] It is a split schematic diagram of the connecting mechanism in the utility model; Figure 3 Figure 1 It is a vertical section structural schematic diagram of the connecting mechanism in the utility model;

[0019] Figure 4 Figure 1 It is a vertical section structural schematic diagram of the connecting mechanism in the utility model;

[0020] Figure 5 It is an enlarged schematic diagram of the structure at A in the utility model. Figure 1 ​​​

[0021] The reference signs and names in the drawings are as follows:

[0022] 1, circuit breaking mechanism; 11, circuit breaker main body; 12, base; 13, through hole; 2, heat dissipation mechanism; 21, shell; 22, heat conduction sheet; 23, heat dissipation column; 3, connecting mechanism; 31, connecting seat; 32, plug-in slot; 33, limiting plate; 34, screw; 35, threaded groove; 36, limiting strip; 37, fitting groove; 38, protective surface; 39, limiting groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of 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.

[0024] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0025] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1 to 5The utility model provides an embodiment: a circuit breaker for automobile, include: circuit breaking mechanism 1, circuit breaking mechanism 1 includes circuit breaker main body 11, and circuit breaker main body 11 bottom end is provided with base 12, heat abstractor 2 is provided with two, and is placed respectively in circuit breaker main body 11 both sides, and every heat abstractor 2 all includes the shell 21, and the one side of shell 21 towards circuit breaker main body 11 is provided with heat conduction sheet 22, connecting mechanism 3 is provided with two, and is symmetrically distributed in circuit breaker main body 11 top, and every connecting mechanism 3 all includes the connecting seat 31, and the inside of connecting seat 31 is provided with the plug -in slot 32, and the plug -in slot 32 is slidably installed with the limiting plate 33, and the top of limiting plate 33 is rotatably installed with the screw 34, and the top of screw 34 penetrates connecting seat 31, and extends the upper end surface of connecting seat 31.

[0027] The both ends of base 12 extend out circuit breaker main body 11 side, and set up arc type, and the both ends of base 12 are provided with through -hole 13, and the vertical section of shell 21 is provided with U type, and the inside of heat conduction sheet 22 is attached circuit breaker main body 11 outside, and the outside of heat conduction sheet 22 is provided with a plurality of heat dissipation columns 23 staggeredly, and one end of every heat dissipation column 23 is fixedly connected with heat conduction sheet 22, and the other end is provided with gap between the inside of shell 21, experiment shows that, after installing the heat dissipation sheet, the temperature rise of circuit breaker when continuously working can reduce about 10 DEG C, effectively improves the current -carrying capacity of circuit breaker, and the top of connecting seat 31 is provided with the thread groove 35 of screw connection with screw 34, and the bottom end of limiting plate 33 is provided with arc surface, and the arc surface is equidistantly structured with a plurality of limiting strips 36, and the inside bottom end of plug -in slot 32 is provided with the embedding groove 37, and the both ends of embedding groove 37 are provided with protection surface 38, and the inside of embedding groove 37 is provided with a plurality of limiting slots 39 opposite limiting strips 36, and the both ends of limiting slot 39 are provided with chamfering structure.

[0028] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiment should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

Claims

1. A circuit breaker for automotive circuits, characterized in that, Include: The circuit breaking mechanism (1) includes the circuit breaker body (11), and the base (12) is arranged at the bottom end of the circuit breaker body (11); The heat dissipation mechanism (2) is provided with two and is arranged on both sides of the circuit breaker body (11), and each heat dissipation mechanism (2) includes a shell (21), and the side of the shell (21) towards the circuit breaker body (11) is provided with a heat conduction sheet (22); The connecting mechanism (3) is provided with two and is symmetrically distributed at the top end of the circuit breaker body (11), each connecting mechanism (3) includes a connecting seat (31), the connecting seat (31) is internally provided with a plug-in slot (32), the plug-in slot (32) is internally provided with a limiting plate (33), the limiting plate (33) is rotatably installed at the top end of the screw (34), the screw (34) penetrates through the connecting seat (31) and extends out of the upper end surface of the connecting seat (31).

2. The circuit breaker for automotive use according to claim 1, characterized in that: Both ends of the base (12) extend out of the side surface of the circuit breaker body (11) and are arranged in an arc shape, and both ends of the base (12) are provided with through holes (13).

3. The circuit breaker of claim 1, wherein: The vertical section of the shell (21) is arranged in a U shape, the inner side of the heat conduction sheet (22) is attached to the outer side of the circuit breaker body (11), and the outer side of the heat conduction sheet (22) is staggered with a plurality of heat dissipation columns (23).

4. The circuit breaker of claim 3, wherein: One end of each of the heat dissipation columns (23) is fixedly connected with the heat conduction sheet (22), and the other end is provided with a gap between the inner side of the shell (21).

5. The circuit breaker of claim 1, wherein: The top end of the connecting seat (31) is provided with a threaded groove (35) connected with the screw (34), and the bottom end of the limiting plate (33) is provided with an arc surface, and the arc surface is equidistantly provided with a plurality of limiting strips (36).

6. A circuit breaker for automotive use according to claim 5, wherein: The inner bottom end of the plug-in slot (32) is provided with a fitting groove (37), both ends of the fitting groove (37) are provided with a protective surface (38), and a plurality of limiting grooves (39) opposite to the limiting strips (36) are arranged in the fitting groove (37), and both ends of the limiting groove (39) are provided with a chamfering structure.

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