CN218299739U - Integrated fuse holder - Google Patents

Abstract

The utility model relates to an integral type fuse holder, including insurance inserted sheet, binding post, pencil, box body and fixed cover, be formed with the closed cavity in the box body, fixed cover and insurance inserted sheet are located in the closed cavity, fixed cover is located the outside of insurance inserted sheet, the pencil is worn to locate the box body, the tip of pencil is equipped with binding post, binding post is connected with the insurance inserted sheet, and integral type fuse holder is complete closed, prevents that water and dust from getting into the inside short circuit or the contact failure that causes of box body for the circuit is stable, the insurance inserted sheet does not need frequent plug to be changed, and direct and binding post welding keeps the circuit stable.

Description

Integrated fuse holder

Technical Field

The utility model relates to a power fuse holder especially relates to an integral type fuse holder.

Background

The fuse holder refers to the seat that is used for installing the fuse, the fuse holder generally includes box body, waterproof shield, binding post, and fuse etc. in the use, when the current of fuse holder flows through the conductor, can to a certain extent because the conductor has certain resistance, so the conductor will generate heat, the fuse is equivalent to the fuse, the fuse can make the temperature of fuse-element rise because of the heat of current conversion when circular telegram, when the normal operating current of load or the overload current that allows, the produced heat of current and the heat that radiates through modes such as fuse-element, casing and surrounding environment radiation, convection current or conduction can reach the balance step by step.

If the heat dissipation speed of the fuse holder cannot keep up with the heating speed, the heat can be gradually accumulated on the melt, so that the temperature of the melt rises, and once the temperature reaches or exceeds the melting point of the melt material, the melt material can be liquefied or vaporized, so that a circuit is disconnected, and the safety protection effect is realized on the circuit and the human body. The existing fuse seats are all open-cover type, fuses are independently inserted into the wiring terminals to be fixed in the box body, and then the waterproof dustproof covers are covered on the box body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, electrically conductive stable integral type fuse block.

The utility model provides an integral type fuse block, includes insurance inserted sheet, binding post, pencil, box body and fixed cover, be formed with sealed cavity in the box body, fixed cover and insurance inserted sheet are located in the sealed cavity, fixed ways is located the outside of insurance inserted sheet, the pencil is worn to locate the box body, the tip of pencil is equipped with binding post, binding post is connected with the insurance inserted sheet. In the above scheme, the box body head narrows down to the afterbody gradually, and the head position is fixed with fixed cover, the insurance inserted sheet is equipped with in the fixed cover, the box body afterbody is fixed with the pencil, the box body is worn into to the one end of pencil, and a plurality of sinle silks are separated out to the pencil in the box body, and the top of sinle silk is fixed with binding post, binding post snap-on is on the insurance inserted sheet, the simple structure of fuse seat, whole structure seal prevent that water and dust infiltration box body are inside to cause short circuit or contact failure for circuit electric conductive property is stable.

Further, the box body is integrally formed. In the above scheme, the box body will fix the cover, insurance inserted sheet and wear into the pencil of box body part and seal completely for fuse seat formula as an organic whole, the confined box body prevents that water and dust from getting into inside and can avoid insurance inserted sheet and pencil to wet and cause the circuit short circuit, perhaps material such as dust disturbs and leads to the electric current unstable.

Furthermore, one end of the fixing sleeve is opened, and the other end is provided with at least one inserting sheet hole. In the above scheme, fixed cover is a hollow casing, fixed cover one end opening is used for inserting the insurance inserted sheet in the casing, fixed cover is opened with the opposite other end of opening has at least one inserted sheet hole, fixed cover is used for fixing and protection insurance inserted sheet, prevents that insurance inserted sheet warp.

Further, the safety insert comprises a support, a melt and electrodes, wherein the electrodes are inserted into the support, and the melt is bridged between the electrodes. In the above scheme, be equipped with the fuse-element in the support, the fuse-element both ends are connected with positive negative electrode, some of electrode is installed in the support, and some exposes outside the support, the effect of insurance inserted sheet is protection circuit and consumer, the fuse-element is lower than the melting point of ordinary wire, and the fuse-element fuses when reaching rated current, circuit disconnection, and the both ends of fuse-element are connected with two electrodes, the electrode is connected electrically conductively with external lines, and the insurance inserted sheet is small, long service life, and the reliability is high, is often used for automobile circuit and industrial equipment's overcurrent protection, easy operation, simple to operate, and simple to operate belongs to the environmental protection material moreover.

Furthermore, the safety insertion sheet is arranged in the accommodating space of the fixing sleeve, and the electrode penetrates through the insertion sheet hole. In the scheme, during installation, the electrode of the safety insertion sheet faces the opening direction of the fixed sleeve, the safety insertion sheet is inserted into the fixed sleeve, the electrode penetrates through the insertion sheet hole on the other side, the support is in contact with the inside of the fixed sleeve, the safety insertion sheet is installed inside the box body by the fixed sleeve, and the support part of the safety insertion sheet is protected, so that the safety insertion sheet is not easy to damage, and part of the electrode penetrating through the fixed sleeve is connected with the wire harness to conduct electricity.

Further, the wire harness comprises a sheath and a wire core, and the end of the wire core extends out of the sheath to be in compression joint with the wiring terminal. In the scheme, the sheath wraps the wire cores, the sheath is flame-retardant, soft and easy to bend, the wire core heads separated from the sheath in the box body are fixedly provided with the wiring terminals, and the wiring terminals are connected with the fuse inserting pieces to enable the fuse holder to be in current circulation with an external circuit.

Further, the end of the sheath is welded or interference connected with the box body. In the above scheme, the pencil is from the box body bottom and wears into the box body, partly pencil in the box body is connected with the insurance inserted sheet in the box body, prevents with sheath and box body butt fusion or interference connection that the pencil from receiving to drag and lead to sinle silk fracture or binding post and electrode disconnection and influence the current circulation to guarantee that the fuse seat can normally protect the circuit.

Further, the wiring terminal is welded with the safety insertion piece. In the above scheme, the pencil passes through binding post beading on the electrode, the sinle silk is connected with the positive negative pole of electrode, and the fuse-element is flowed through to the electric current, and the fuse-element fusing when the electric current is too big to exceed rated current realizes the function of protection circuit, adopts the welded mode to make the electric current through the insurance inserted sheet more stable, increases the life of fuse holder to a certain extent.

The utility model discloses an integral type fuse seat has following beneficial effect at least:

first, simple structure, it is with low costs, the fuse block includes insurance inserted sheet, binding post, pencil, box body and fixed cover, the insurance inserted sheet inserts fixed cover, fixed cover is fixed in the box body, the pencil passes the bottom of box body, the head of pencil is fixed with binding post, binding post is connected with the insurance inserted sheet, and the equipment is simple, and it is also very convenient to use.

Second, electric conductive property are stable, the fuse seat seals completely, prevents that water and dust from getting into the inside short circuit or the contact failure that causes of box body for the circuit is stable, the insurance inserted sheet does not need often plug to change, and is direct to keep the circuit stable with binding post welding.

Third, long service life, insurance inserted sheet long service life itself, the fixed cover of rethread protects insurance inserted sheet, and the box body plays the effect of dampproofing preventing the interference of foreign matter for a closed cavity simultaneously, can prolong the life of fuse seat.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of an integrated safety seat;

FIG. 2 is a schematic diagram of a cassette according to an embodiment;

FIG. 3 is a schematic view of an embodiment of a fixture sleeve;

FIG. 4 is another perspective view of the fixture sleeve of FIG. 3;

FIG. 5 is a plan view of a detail of an embodiment of a security tab and wiring harness;

fig. 6 is a perspective view of an embodiment of a security tab and harness connection.

The reference numbers illustrate: 1. a box body; 20. fixing a sleeve; 21. a blade insertion hole; 30. a safety insert; 31. a support; 32. melting the materials; 33. an electrode; 40. a wire harness; 5. a wiring terminal; 41. A wire core; 42. a sheath.

Detailed Description

The integrated fuse holder of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1 and fig. 5, in a preferred embodiment, the integrated fuse holder of the present invention includes an insurance insertion sheet 30, a connection terminal 5, a wiring harness 40, a box body 1 and a fixing sleeve 20, the fixing sleeve 20 and the insurance insertion sheet 30 are disposed in the closed cavity, the fixing sleeve 20 is disposed at the outside of the insurance insertion sheet 30, the wiring harness 40 is disposed on the box body 1, the connection terminal 5 is disposed at the end of the wiring harness 40, and the connection terminal 5 is connected to the insurance insertion sheet 30. 1 head of box body narrows down to the afterbody gradually, head rigidity has fixed cover 20, insurance inserted sheet 30 is equipped with in the fixed cover 20, 1 afterbody of box body is fixed with pencil 40, box body 1 is worn into to pencil 40's one end, a plurality of sinle silks 41 have been separated out to pencil 40 in the box body 1, sinle silks 41's top is fixed with binding post 5, binding post 5 snap-on is on insurance inserted sheet 30, the simple structure of fuse seat, whole structure seals prevents that water or dust infiltration box body 1 is inside to cause short circuit or contact failure, insurance inserted sheet 30 is direct to be connected with binding post 5 and fixes guaranteeing the current steady circulation in box body 1, avoid plug insurance inserted sheet 30 not leading to circuit fault, the electric conductive property of fuse seat is stable, can the protection circuit, factor of safety is high.

As shown in fig. 1 and 2, in some embodiments, the case 1 is integrally formed. Box body 1 will fix cover 20, insurance inserted sheet 30 and wear into 1 partly pencil 40 of box body and seal completely, make fuse holder formula as an organic whole, when the inside of box body 1 is hollow, fixed cover 20 passes through the fastener and fixes in box body 1, box body 1 is when solid, open the recess in corresponding position is used for fixed pencil 40 and fixed cover 20, closed box body 1 prevents that water and dust from getting into inside and can avoid insurance inserted sheet 30 and pencil 40 to wet and cause the circuit short circuit, perhaps material such as dust disturbs and leads to the current unstable, box body 1 is insulating material, the outer wall processing of box body 1 has anti-skidding line.

In some embodiments, the pouch 20 is open at one end and has at least one insert hole at the other end, as shown in figures 1, 3 and 4. . The fixing sleeve 20 forms a hollow shell, an opening at one end of the fixing sleeve 20 is used for inserting the safety insert 30 into the shell, two insert holes 21 are formed at the other end of the fixing sleeve 20 opposite to the opening, one side of the opening of the fixing sleeve 20 faces the head of the box body 1, one side of the opening of the fixing sleeve 20, where the insert holes 21 are formed, faces the tail of the box body 1, and the fixing sleeve 20 is used for fixing and protecting the safety insert 30 to prevent the safety insert 30 from deforming to cause that the fuse holder cannot play a role in protecting a circuit.

As shown in fig. 5, the safety insert 30 includes a support 31, a melt 32, and electrodes 33, wherein the electrodes 33 are inserted into the support 31, and the melt 32 is bridged between the electrodes 33. The fuse-element 32 is arranged in the support 31, both ends of the fuse-element 32 are connected with positive and negative electrodes 33, a part of the electrodes 33 is arranged in the support 31, a part of the electrodes 33 is exposed outside the support 31, the fuse-element 32 is used for protecting circuits and electric equipment, the melting point of the fuse-element 32 is lower than that of a common lead, the fuse-element 32 is fused when reaching rated current, the circuits are disconnected, both ends of the fuse-element 32 are connected with the two electrodes 33, the electrodes 33 are connected with external circuits to be conductive, the fuse-element 30 is small in volume, long in service life and high in reliability, is commonly used for overcurrent protection of automobile circuits and industrial equipment, and is simple in operation and convenient to install and belongs to an environment-friendly material. The fuse insert 30 is made of a metal similar to solder, the dimensions are calibrated very precisely to generate enough heat to melt the fuse insert 32 when rated current is reached, and the fuse insert 30 is of many specifications and is commonly used for overcurrent protection of automotive circuits, industrial equipment, etc.

As shown in fig. 1 and 4, the safety insert 30 is disposed in the accommodating space of the fixing sleeve 20, and the electrode 33 passes through the insert hole 21. Electrode 33 of insurance inserted sheet 30 is towards fixed cover 20 opening direction during the installation, insert fixed cover 20 with insurance inserted sheet 30, electrode 33 passes the inserted sheet hole 21 of opposite side, support 31 and fixed cover 20 internal contact, fixed cover 20 is installed insurance inserted sheet 30 inside box body 1, and the effect of protection is played to the support 31 part of insurance inserted sheet 30, it is not fragile to make insurance inserted sheet 30, it is connected with pencil 40 to pass fixed cover 20 partly electrode 33, if electrical equipment does not work, then probably insurance inserted sheet 30 burns out, need to change whole fuse block.

As shown in fig. 5 and 6, the wire harness 40 includes a sheath 42 and a wire core 41, and an end portion of the wire core 41 protrudes out of the sheath 42 to be crimped with the junction terminal 5. Sheath 42 is wrapping up a plurality of sinle silks 41, and sheath 42 is fire-retardant and soft easily to be buckled, and sinle silk 41 is wrapped up the copper wire by the insulating layer and is constituteed, and pencil 40 is worn into box body 1 partly and is fixed in box body 1, and the sinle silk 41 head that the sheath 42 of pencil 40 in the box body 1 separated is fixed with binding post 5, and binding post 5 is connected with the electrode 33 of insurance inserted sheet 30 and is made fuse block and external circuit electric current circulation for protection circuit.

As shown in fig. 1, the end of the sheath 42 is welded or interference-connected to the case body 1. In the above scheme, pencil 40 is worn into box body 1 from box body 1 bottom, and partly pencil 40 in the box body 1 is connected with the insurance inserted sheet 30 in the box body 1, prevents that pencil 40 from receiving to pull to lead to sinle silk 41 fracture or binding post 5 and the disconnection of electrode 33 and influence the current circulation with sheath 42 and box body 1 butt fusion or interference connection to guarantee that the fuse block can normally protect the circuit.

As shown in fig. 5, the terminal 5 is welded to the safety insert 30. Sinle silk 41 passes through binding post 5 lug weld on fixed cover 20 outer electrode 33, sinle silk 41 is connected with the positive negative pole of electrode 33, the electric current flows through fuse-element 32, fuse-element 32 fuses when the electric current is too big when exceeding rated current, realize the function of protection circuit, general fuse holder insurance inserted sheet 30 can directly be changed, but frequent plug insurance inserted sheet 30 leads to insurance inserted sheet 30 and circuit contact failure easily, adopt the welded mode to make the electric current through insurance inserted sheet 30 more stable, reduce the frequency of changing insurance inserted sheet 30, increase the life of fuse holder to a certain extent.

The utility model discloses integral type fuse block theory of operation and process, the fuse block includes insurance inserted sheet 30, binding post 5, pencil 40, box body 1 and fixed cover 20, 1 inside fixed cover 20 that is equipped with of box body, be equipped with insurance inserted sheet 30 in the fixed cover 20, insurance inserted sheet 30 includes support 31, electrode 33 and fuse-element 32, pencil 40 passes 1 bottom of box body, the sinle silk 41 head of pencil 40 is fixed with binding post 5, binding post 5 is in the same place with the electrode 33 welding of insurance inserted sheet 30, when the electric current is too big, the fuse-element 32 fusing of insurance inserted sheet 30, the circuit disconnection, thereby the fuse block plays the effect of protection circuit, whole structure seals, the condition of avoiding appearing waterproof shield to leak the lid and droing prevents that water and dust infiltration box body 1 is inside to cause short circuit or contact failure, make circuit electric conductive property stable.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (8)

1. The utility model provides an integral type fuse seat, includes insurance inserted sheet, binding post and pencil, its characterized in that still includes box body and fixed cover, be formed with the closed cavity in the box body, fixed cover and insurance inserted sheet are located in the closed cavity, fixed cover is located the outside of insurance inserted sheet, the pencil is worn to locate the box body, the tip of pencil is equipped with binding post, binding post is connected with the insurance inserted sheet.

2. The one-piece fuseholder of claim 1, wherein the cartridge body is integrally formed.

3. The integrated fuseholder of claim 1, wherein the retaining sleeve is open at one end and has at least one insert hole at the other end.

4. The integrated fuse holder according to claim 3, wherein the fuse insert comprises a holder, a melt and electrodes, the electrodes being interposed in the holder, the melt bridging between the electrodes.

5. The integrated fuse holder according to claim 4, wherein the fuse insert is disposed in the receiving space of the fixing sheath, and the electrode passes through the insert hole.

6. The one-piece fuseholder of claim 1, wherein the wiring harness includes a sheath and a wire core, an end of the wire core extending out of the sheath into crimping with a wire terminal.

7. The integrated fuseholder of claim 6, wherein the ends of the protective sleeve are welded or interference bonded to the box body.

8. The integrated fuseholder of claim 1, wherein the wire terminals are welded to the fuse inserts.

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