CN218482192U - High-power automobile wire harness fuse holder - Google Patents

Abstract

The utility model discloses a high-power car wiring harness fuse seat, include the fashioned base and lid by SiC ceramic powder, the lid assembles on the base, the base includes the basement, from the outside ear seat that extends of both ends level and the assembly baffle that the shaping was followed around the basement about the basement, it has the assembly chamber to constitute between two assembly baffles, the end is equipped with the conductive metal contact respectively about the assembly chamber, the electricity is connected with the piece formula fuse that is arranged in the assembly chamber between two conductive metal contacts, the lid includes main capping, from the outside extension and the shaping of both ends level about the capping outside extension of both ends level at the terminal assembly jack catch of extension, both ends assembly jack catch and the assembly baffle about, be equipped with "U" type card wire casing that supplies the pencil to pass on the assembly jack catch, the shaping has the explosion-proof chamber with assembly chamber intercommunication between main capping and the assembly baffle. The utility model discloses a 1200A's the biggest through-flow in the twinkling of an eye can be realized to pencil fuse seat, has not the heat accumulation, and the heat dissipation is fast, high withstand voltage, advantages such as sturdy and durable.

Description

High-power automobile wire harness fuse holder

Technical Field

The utility model relates to a high-power fuse technical field, concretely relates to high-power car wiring harness fuse seat.

Background

High-power vehicles, such as special vehicles like automatic loading and unloading, cranes, forklifts and the like, need instantaneous high-power operation, and under the condition that the voltage provided by a storage battery is certain, the operation needs can be met only by providing large current. Because different operation units need to add heavy current fuses in the wire bundles, overcurrent and short circuit protection is carried out on different expansion units. At present, the wire harness fuse in the market is a fuse holder which is formed by thermoplastic molding of PVC, nylon or rubber materials, and the temperature rise can reach 75C or above under rated current. If the ambient temperature exceeds 25C, when the temperature rise reaches 75C or above, the current reduction is needed, but the current reduction causes power loss. Meanwhile, due to the existence of overcurrent (for example, 1.35 times of rated current, the fuse is fused within 1 hour < refer to standards such as UL248, ISO8820 and the like), under the condition, the plastic base can be softened, deformed, carbonized and even ignited at high temperature due to slow heat dissipation, so that the circuit safety is influenced. Therefore, the chip fuse wire harness fuse holder cannot provide a product with a current of more than 80A, and great inconvenience is brought to the use of the chip fuse of 80-120A.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect that above-mentioned technique exists, the utility model provides a high-power car wiring harness fuse holder.

The utility model discloses realize that the technical scheme that above-mentioned technological effect adopted is:

the utility model provides a high-power car wiring harness fuse holder, includes by fashioned base of SiC ceramic powder and lid, the lid assembles on the base, the base includes the base, certainly the lug that both ends level extended outside about the base, and the shaping is in the assembly baffle on both sides edge around the base, two it has the assembly chamber to constitute between the assembly baffle, the end is equipped with conductive metal contact respectively about the assembly chamber, two electrically connected with between the conductive metal contact is located piece formula fuse in the assembly chamber, the lid includes the main lid head, certainly the main lid head is controlled the extension that both ends level extended outside, and the shaping is in the terminal assembly jack catch of extension, both ends the assembly jack catch with both ends adaptation joint about the assembly baffle, be equipped with "U" type wire casing that supplies the pencil to pass on the assembly jack catch, the main lid head with the shaping has with the explosion-proof chamber of assembly chamber intercommunication between the assembly baffle.

Preferably, in the above high-power automobile wire harness fuse holder, a protection cavity for covering the wire harness connection end is formed between the assembly clamping jaw and the left and right corresponding ends of the assembly baffle.

Preferably, in the above high-power automobile wire harness fuse holder, the conductive metal contact includes a square conductive metal insert block assembled at the end of the assembly cavity, two parallel and inwardly extending conductive plates are formed on the inner end side of the conductive metal insert block facing the assembly cavity, a wire harness connection terminal holder is formed at the outer end of the conductive metal insert block, and an embedded groove for embedding a chip fuse is formed between the two conductive plates.

Preferably, in the above-mentioned high-power automobile wire harness fuse holder, the periphery of the wire harness connection terminal holder is of a hexagonal structure, a circular slot for inserting a wire harness is formed on an end face, and a conductive partition is formed between an inner end of the slot and the embedded slot.

Preferably, in the above high power automobile wire harness fuse holder, the conductive metal contact is formed by integrally molding the conductive metal insert, the conductive plate and the conductive partition.

Preferably, in the above high-power automobile wire harness fuse holder, the base is formed by integrally molding the base, the lug and the mounting baffle.

Preferably, in the above high power automobile wire harness fuse holder, the cover is formed by integrally molding the main cover head, the extension part and the assembling claws.

Preferably, in the above-mentioned high-power automotive harness fuse holder, the conductive metal contact is made of a copper material.

The utility model has the advantages that: the utility model discloses a fashioned base of SiC ceramic powder and lid constitute the fuse seat, have not the heat accumulation, and the heat dissipation is fast, high withstand voltage, and is stand wear and tear, advantages such as sturdy and durable have solved among the prior art pencil fuse seat and can not be applicable to the heavy current condition more than 80A, can realize 1200A's the biggest through-flow in the twinkling of an eye, avoid traditional plastics class base to soften and warp, carbonization problem. In addition, the cover and the base can be assembled quickly, the replacement and assembly operation of the chip fuse is simple, and the explosion-proof cavity formed between the cover and the base and communicated with the assembly cavity can bear sparks generated by short circuit of the chip fuse when an ultra-large current passes through the explosion-proof cavity, so that the assembly cavity assembled with the chip fuse is subjected to force unloading, and the explosion-proof effect is achieved.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken at "A-A" in FIG. 2;

FIG. 4 is an exploded view of the present invention;

fig. 5 is a cross-sectional view of the base of the present invention;

fig. 6 is a perspective view of the cover of the present invention;

fig. 7 is a perspective view of the conductive metal contact of the present invention.

Detailed Description

For a further understanding of the invention, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples, in which:

in the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific situations.

Please refer to fig. 1 and 4, as shown in the figures, the embodiment of the present invention provides a high power automobile wire harness fuse holder, which comprises a base 1 and a cover 2 formed by SiC ceramic powder, wherein the cover 2 is detachably assembled on the base 1, the assembly is completed by inserting and connecting the two, the fixing is performed without using a screw or a buckle, and the assembly and disassembly of the cover 2 and the base 1 can be rapidly completed. As shown in fig. 3 and 5, the base 1 includes a base 11, ear seats 12 extending horizontally outward from both left and right ends of the base 11, and fitting baffles 111 formed at both front and rear side edges of the base 11. An assembly cavity is formed between the two assembly baffles 111, the left end and the right end of the assembly cavity are respectively provided with the conductive metal contacts 3, and a chip fuse (not shown in the figure) located in the assembly cavity is electrically connected between the two conductive metal contacts 3. As shown in fig. 4, the ear seat 12 is provided with a screw hole 13, a groove 131 is formed on one side of the periphery of the screw hole 13 on the upper surface of the ear seat 12, and the groove 131 facilitates the screw to be quickly inserted into the screw hole 13. As shown in fig. 3 and 6, the cover 2 includes a main head 21, extensions 22 extending horizontally outward from both left and right ends of the main head 21, and fitting claws 23 formed at the ends of the extensions 22. The assembling claws 23 at the two ends are in adaptive clamping connection with the left end and the right end of the assembling baffle 111, after the assembling claws 23 and the assembling baffle 111 are subjected to splicing adaptive assembly, static friction force exists between the assembling claws 23 and the assembling baffle 111, and the assembling claws 23 and the assembling baffle 111 are fixedly connected under the static friction force. Through adaptation joint between them, the assembly can be accomplished fast to lid 2 and base 1 both, and chip fuse reloads easy operation. As shown in fig. 3 and 6, the assembly claws 23 are provided with U-shaped wire retaining grooves 231 through which the wire harness passes, and an explosion-proof chamber 4 communicating with the assembly chamber is formed between the main head 21 and the assembly baffle 111. The explosion-proof cavity 4 formed between the cover 2 and the base 1 and communicated with the assembly cavity can bear sparks generated by short circuit of the chip fuse when the super-large current passes through, and the assembly cavity assembled with the chip fuse is subjected to force unloading, so that an explosion-proof effect is achieved. In a preferred embodiment, the conductive metal contact 3 is formed by integrally molding a conductive metal insert 31, a conductive plate 32 and a conductive partition 331. The base 1 is integrally formed by a base 11, an ear piece 12 and a fitting bezel 111. The cover 2 is integrally formed by a main head 21, an extension 22, and an assembling jaw 23. The above structural members formed integrally have structural stability, and are convenient for completing quick assembly.

Further, in the preferred embodiment of the utility model, as shown in fig. 3, this assembly jack catch 23 corresponds between the end with the left and right sides of assembly baffle 111 and the shaping has the protection chamber 5 that is used for covering pencil electrical connection end, and protection chamber 5 can cover the electrical connection end of pencil in the inside of lid 2, avoids pencil electrical connection end to expose outside, plays the guard action. As shown in fig. 7, the conductive metal contact 3 includes a conductive metal insert 31 in a square block shape mounted at an end of the mounting cavity, the conductive metal insert 31 is formed with two conductive plates 32 extending in parallel inward toward an inner end side of the mounting cavity, an outer end of the conductive metal insert 31 is formed with a harness connecting terminal block 33, and an insertion groove 321 for inserting the chip fuse is formed between the two conductive plates 32. Specifically, the periphery of the wire harness connection terminal block 33 is a hexagonal structure, and a circular slot 330 for plugging a wire harness is formed on the end surface. As shown in fig. 5, a conductive partition 331 is formed between the inner end of the insertion groove 330 and the insertion groove 321, and the conductive partition 331 can perform a spark isolation function, so as to prevent spark generated by short circuit of the chip fuse when an excessive current passes through the chip fuse from causing burning erosion to the harness connection terminal block 33 and the harness connection terminal fixed therein. Since the entire conductive metal contact 3 is conductive, the conductive partition 331 does not affect the electrical connection of the chip fuse with the harness electrical terminal. In a preferred embodiment, the conductive metal contact 3 is made of a copper material.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the foregoing embodiments and the description with reference to the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention as claimed, which is defined by the claims appended hereto and their equivalents.

Claims (8)

1. The utility model provides a high-power car wiring harness fuse block, its characterized in that includes base (1) and lid (2) by the shaping of SiC ceramic powder, lid (2) assembly is in on base (1), base (1) include basement (11), certainly both ends level outside ear seat (12) that extend about basement (11) and shaping are in assembly baffle (111) that both sides were followed around basement (11), two constitute between assembly baffle (111) and have the assembly chamber, the end is equipped with conductive metal contact (3) respectively about the assembly chamber, two be connected with between conductive metal contact (3) and be located piece formula fuse in the assembly chamber, lid (2) include main cover head (21), certainly extension (22) that both ends level outside extended about main cover head (21), and the shaping is in assembly jack catch (23) of extension (22) end, both ends assembly jack catch (23) with the both ends adaptation joint about assembly baffle (111), be equipped with on assembly jack catch (23) and supply the U "231" that the pencil passed "the type line bundle of wire, assembly jack catch (23) with the assembly jack catch communicates with the shaping between the main cover chamber (111).

2. The high power automobile wire harness fuse holder according to claim 1, wherein a protection cavity (5) for covering the wire harness connection end is formed between the assembly jaw (23) and the left and right corresponding ends of the assembly baffle (111).

3. The high power automobile wire harness fuse holder according to claim 1, wherein the conductive metal contact (3) comprises a square conductive metal insert (31) assembled at the end of the assembly cavity, the conductive metal insert (31) is formed with two parallel inward extending conductive plates (32) at the inner end side facing the assembly cavity, the outer end of the conductive metal insert (31) is formed with a wire harness connection terminal holder (33), and an embedded groove (321) for embedding a chip fuse is formed between the two conductive plates (32).

4. The high-power automobile wire harness fuse holder as claimed in claim 3, wherein the periphery of the wire harness connection terminal holder (33) is hexagonal, a circular slot (330) for inserting a wire harness is formed on the end face, and a conductive partition (331) is formed between the inner end of the slot (330) and the embedded slot (321).

5. The high power automotive harness fuse holder according to claim 4, characterized in that the conductive metal contact (3) is integrally formed by the conductive metal insert (31), the conductive plate (32) and the conductive partition (331).

6. The high power automobile wire harness fuse holder according to claim 1, wherein the base (1) is integrally formed by the base (11), the ear seat (12) and the fitting baffle (111).

7. The high power automotive harness fuse holder according to claim 1, characterized in that the cover (2) is integrally formed of the main head (21), the extension (22) and the fitting jaws (23).

8. The high power automotive harness fuse holder according to claim 1, characterized in that the conductive metal contact (3) is composed of a copper material.

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