CN219393319U - High heat dissipation patch type fuse - Google Patents
High heat dissipation patch type fuse Download PDFInfo
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- CN219393319U CN219393319U CN202320429245.0U CN202320429245U CN219393319U CN 219393319 U CN219393319 U CN 219393319U CN 202320429245 U CN202320429245 U CN 202320429245U CN 219393319 U CN219393319 U CN 219393319U
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- heat dissipation
- insulating tube
- sealing
- heat
- fuse
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a high-heat-dissipation patch type fuse which comprises an insulating tube, two end caps and a melt, wherein the insulating tube is provided with a prompt strip, a heat dissipation layer and an explosion-proof layer, the heat dissipation layer is provided with a heat dissipation structure, and a sealing structure is arranged between the two insulating tubes and the end caps. According to the utility model, the thermochromic prompt strip is arranged for playing a role of visual temperature prompt, so that the high-temperature-resistant performance of the high-heat-dissipation patch type fuse can be quickly known during testing, and meanwhile, the thermochromic prompt strip can play a role of position prompt of burning out, so that the positioning and searching are facilitated, and the maintenance efficiency is improved; the heat dissipation structure is used for improving the direct contact area between the inside and outside of the insulating tube, and greatly increasing the heat dissipation area, so that heat generated during melt working is prevented from accumulating in the insulating tube, the heat dissipation effect and performance are improved, and the service life and performance of the high-heat-dissipation patch type fuse are prolonged.
Description
Technical Field
The utility model relates to the technical field of patch type fuses, in particular to a high-heat-dissipation patch type fuse.
Background
The surface mount fuse is a disposable passive element for protecting circuit, when the current is too large, the inherent resistance of the melt conductor can prevent the current from passing through to heat and raise the temperature, the heat dissipation capacity is smaller than the heat dissipation capacity, the accumulated heat is raised to exceed the melting point, the fuse is melted and disconnected, the circuit current is cut off, other components and circuits are protected, and the safety of fire and explosion is protected. The existing patch type fuses are all arranged in a closed space, heat can be accumulated in the patch type fuses due to limited heat dissipation efficiency of the sealed space, the existing patch type fuses can conduct heat conduction and dissipation only through metal caps at two ends of the existing patch type fuses, the contact heat dissipation area between the inside of each patch type fuse and the outside is small, the normal monitoring performance of each patch type fuse can be affected due to long-time temperature accumulation, frequent fusing faults occur, and normal use is affected; the existing patch type fuse adopts sealant for sealing treatment, and the sealant can be aged and damaged under severe rings with high temperature, high humidity and the like, so that the sealing effect is affected, and the subsequent sealing performance is affected; the existing patch type fuse has poor explosion-proof performance, only the shell is used for explosion-proof, and the patch type fuse generates high Wen Zhalie when being fused to influence nearby components; the fuse body of the existing patch type fuse is connected with the two metal caps in a welding mode, and because of no positioning and pressing structure, the internal fuse body is easily shifted due to factors of external force (collision, vibration and the like) in the process of being installed to equipment, moved or used, so that poor contact of the patch type fuse is caused, and the follow-up use of the patch type fuse is affected.
Disclosure of Invention
The utility model provides a high-heat-dissipation patch type fuse which aims at the defects of the prior art.
The technical scheme adopted by the utility model for achieving the purpose is as follows:
the utility model provides a high heat dissipation paster type fuse includes insulating tube, both ends cap and fuse-element, two the end cap sets up respectively the both ends of insulating tube, the fuse-element sets up between the cap of both ends, and set up in the insulating tube, the insulating tube is equipped with suggestion strip, heat dissipation layer and explosion-proof layer, the heat dissipation layer is equipped with heat radiation structure, two all be equipped with seal structure between insulating tube and the end cap.
The insulating tube is equipped with the cavity, the both ends of cavity all are equipped with the constant head tank, the constant head tank all is equipped with movable briquetting, movable briquetting all is equipped with the fixed slot, the both ends of fuse-element set up respectively in the fixed slot, the interior terminal surface of end cap all is equipped with compresses tightly the arch, compress tightly the arch all with movable briquetting laminating contact.
The insulating tube is provided with a groove I, the groove I is provided with a plurality of through holes I, the prompting strip is arranged in the groove I and is a thermochromic prompting strip, the prompting strip is provided with a plurality of contact parts, the contact parts are respectively arranged in the through holes I, the outer side faces of the contact parts are tightly attached to the inner side faces of the through holes, and the contact parts are communicated with the hollow cavity.
The explosion-proof layer is arranged on the inner side surface of the hollow cavity, the thickness of the explosion-proof layer is 0.3nm-0.8nm, and the explosion-proof layer is an arc extinguishing adhesive layer.
The insulating tube still is equipped with a plurality of through-holes two, and a plurality of through-holes two all run through the explosion-proof layer, and with cavity intercommunication, the insulating tube still is equipped with two recess two, two recess two is in with mirror image opposite mode setting on the lateral wall of insulating tube, the heat dissipation layer includes heat dissipation portion one and heat dissipation portion two, heat dissipation portion one sets up in the recess two, heat dissipation portion two sets up on the internal surface of arc extinguishing glue film, heat radiation structure sets up on the lateral surface of heat dissipation portion one, all be equipped with a plurality of heat conduction silica gel posts between heat dissipation portion one and the heat dissipation portion two.
The heat dissipation device is characterized in that the first heat dissipation part and the second heat dissipation part are both heat-conducting silica gel layers, the heat-conducting silica gel columns are respectively arranged in the second through holes and are tightly attached to the inner side faces of the second through holes, one ends of the heat-conducting silica gel columns are integrally welded with the first heat dissipation part, and the other ends of the heat-conducting silica gel columns are integrally welded with the second heat dissipation part.
The heat dissipation structure comprises a plurality of heat dissipation grooves, wherein a plurality of first heat dissipation grooves are formed in two side faces of each heat dissipation groove, and inclined planes are arranged on the first heat dissipation grooves.
The sealing structure comprises a sealing groove and a sealing lug, wherein the sealing lug is respectively arranged at two ends of the insulating tube, the sealing groove is respectively arranged at the inner end face of the end cap, the sealing lug is provided with a sealing inclined surface in an inverted mode, the sealing lug is further provided with a step lug, the sealing groove is provided with a sealing inclined surface I matched with the sealing inclined surface in an inverted mode, the sealing groove is further provided with a step groove, the sealing lug is matched with the sealing groove, the sealing inclined surface is matched with the sealing inclined surface I, the step lug is matched with the step groove, and a sealing glue filling layer is arranged between the step lug and the step groove.
The end cap and the movable pressing block are made of pure copper, copper gold plating, copper silver plating, copper nickel plating or copper tin plating, and the movable pressing block is provided with a positioning convex block which is connected with the positioning groove in a matched mode.
Further improvement is made, the insulating tube is a ceramic insulating tube, and the shape of the melt is wire-shaped, flat or narrow-diameter.
The utility model has the beneficial effects that: according to the utility model, the positioning strip and the positioning groove are arranged so as to facilitate the positioning and installation of the melt in the hollow cavity, and the pressing protrusion is combined to play a role in pressing so as to ensure the contact efficiency between the melt and the two end surfaces and prevent poor contact caused by loosening; through setting up the effect that thermochromic cue strip is used for playing the visual suggestion of temperature, be convenient for know high heat dissipation SMD fuse high temperature resistant performance fast when carrying out the test, thermochromic cue strip can also play the position suggestion of burning out simultaneously, the high temperature that produces when the fuse-element burns out makes thermochromic cue strip discolour to know the SMD fuse position of burning out fast, be convenient for fix a position and look for, improve the efficiency of maintaining; the explosion-proof layer is arranged for absorbing impact force generated when part of melt is fused, so that the explosion of the insulating tube is prevented from affecting surrounding electronic elements, and the protection performance and the safety are improved; the heat dissipation structure is arranged to improve the direct contact area between the inside of the insulating tube and the outside, and greatly increase the heat dissipation area, so that heat generated during melt working is prevented from accumulating in the insulating tube, the heat dissipation effect and performance are improved, and the service life and performance of the high-heat dissipation patch type fuse are prolonged; through setting up seal structure and being used for providing multiple seal structure, improve sealing performance greatly, prevent to appear because of the circumstances that high temperature environment or ageing lead to sealed effect to reduce, improve waterproof performance for high heat dissipation paster formula fuse can be under abominable environment normal use, guarantees performance, improves the suitability.
The utility model will be further described with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a high heat dissipation chip fuse according to the present embodiment;
FIG. 2 is a schematic top view of a high heat dissipation chip fuse according to the present embodiment;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged schematic view of B in FIG. 3;
FIG. 5 is an exploded view of the high heat dissipation patch fuse of the present embodiment;
FIG. 6 is an enlarged schematic view of FIG. 5A;
fig. 7 is a schematic diagram of the end cap structure of the present embodiment.
Detailed Description
The following description is of the preferred embodiments of the utility model, and is not intended to limit the scope of the utility model.
Referring to fig. 1-7, a high heat dissipation patch fuse 1 includes an insulating tube 2, two end caps 3 and a melt 4, wherein the two end caps 3 are respectively disposed at two ends of the insulating tube 2, the melt 4 is disposed between the two end caps 3 and in the insulating tube 2, the insulating tube 2 is provided with a prompt strip 5, a heat dissipation layer 6 and an explosion-proof layer 7, the heat dissipation layer 6 is provided with a heat dissipation structure 8, a sealing structure 9 is disposed between the insulating tube 2 and the end caps 3, and the two end caps 3 and the insulating tube 2 are connected into an integral structure by welding or bonding.
The insulating tube 2 is equipped with cavity 20, cavity 20's both ends all are equipped with constant head tank 21, constant head tank 21 all is equipped with movable briquetting 210, movable briquetting 210 all is equipped with the fixed slot, melt 4's both ends set up respectively in the fixed slot, end cap 3's interior terminal surface all is equipped with compresses tightly protruding 41, compress tightly protruding 41 all with movable briquetting 210 laminating contact, movable briquetting 210 is convenient for melt 4's location with the constant head tank 21 install cavity 20 in, compress tightly protruding 41 and be used for playing the contact efficiency between compressing tightly effect assurance melt 4 and the both ends face, prevent not hard up circumstances that causes the contact failure to appear.
The insulating tube 2 is equipped with recess one, recess one is equipped with a plurality of through-holes one, the suggestion strip 5 sets up in recess one, the suggestion strip 5 is thermochromic suggestion strip, the suggestion strip is equipped with a plurality of contact 50, contact 50 sets up respectively in the through-hole one, just the lateral surface of contact 50 closely laminates with the medial surface of through-hole, contact 50 and cavity 20 intercommunication, thermochromic suggestion strip is used for playing the effect of the visual suggestion of temperature, knows high heat dissipation patch formula fuse 1 high temperature resistant performance fast when being convenient for test, and the position suggestion that the thermochromic suggestion strip still can burn out simultaneously, and the high temperature that produces when fuse body 4 burns out makes thermochromic suggestion strip discolour to know the patch formula fuse position of burning out fast, be convenient for fix a position and look for, improve the efficiency of maintaining, thermochromic suggestion strip adopts color-changing printing ink and colloid to constitute, the range of discolouring of temperature-sensing ink is greater than 55 ℃.
The explosion-proof layer 7 is arranged on the inner side surface of the hollow cavity 20, the thickness of the explosion-proof layer 7 is 0.3nm-0.8nm, the explosion-proof layer 7 is an arc extinguishing glue layer, and the explosion-proof layer 7 is used for absorbing impact force generated when part of melt 4 is fused, so that the explosion of the insulating tube 2 is prevented from affecting surrounding electronic elements, and the protection performance and safety are improved.
The insulating tube 2 is further provided with a plurality of second through holes, the second through holes penetrate through the explosion-proof layer 7 and are communicated with the hollow cavity 20, the insulating tube 2 is further provided with two second grooves, the two second grooves are arranged on the outer side wall of the insulating tube 2 in a mirror image opposite mode, the heat dissipation layer 6 comprises a first heat dissipation part 60 and a second heat dissipation part 61, the first heat dissipation part 60 is arranged in the second grooves, the second heat dissipation part 61 is arranged on the inner surface of the arc extinguishing glue layer, the heat dissipation structure 8 is arranged on the outer side surface of the first heat dissipation part 60, a plurality of heat conducting silica gel columns 62 are arranged between the first heat dissipation part 60 and the second heat dissipation part 61, the first heat dissipation part 60 and the second heat dissipation part 61 are heat conducting silica gel layers, the heat conducting silica gel columns 62 are respectively arranged in the second through holes, and with the medial surface of through-hole two is closely laminated, the one end of heat conduction silica gel post 62 with radiating portion one 60 welds into an organic wholely, the other end of heat conduction silica gel post 62 with radiating portion two 61 welds into an organic wholely, heat radiation structure 8 sets up on the surface of radiating portion one 60, heat radiation structure 8 includes many heat dissipation grooves 80, many heat dissipation grooves 80's both sides face still is equipped with many heat dissipation grooves one 81, many heat dissipation grooves one 81 all need to fall the inclined plane, heat radiation structure 8 is used for improving the interior direct contact area with the external world of insulating tube 2, and increases heat radiating area greatly to prevent to pile up in insulating tube 2 because of the heat that fuse 4 during operation produced, improve radiating effect and performance, extension high heat dissipation patch formula fuse 1's life and performance.
The sealing structure 9 comprises a sealing groove 90 and a sealing lug 91, the sealing lug 91 is respectively arranged at two ends of the insulating tube 2, the sealing groove 90 is respectively arranged at the inner end face of the end cap 3, the sealing lug 91 is provided with a sealing inclined plane, the sealing lug 91 is further provided with a step lug 910, the sealing groove 90 is provided with a sealing inclined plane I matched with the sealing inclined plane, the sealing groove 90 is further provided with a step groove 911, the sealing lug 91 is matched with the sealing groove 90, the sealing inclined plane is matched with the sealing inclined plane I, the step lug 910 is matched with the step groove 911, a sealing grouting layer is arranged between the step lug 910 and the step groove 911, the sealing structure 9 is used for providing a multiple sealing structure 9, the sealing performance is greatly improved, the situation that the sealing effect is reduced due to high-temperature environment or aging is prevented, the waterproof performance is improved, the high-heat-dissipation patch type fuse 1 can be normally used in a severe environment, the service performance is ensured, and the applicability is improved.
The end cap 3 and the movable pressing block are made of pure copper, copper gold plating, copper silver plating, copper nickel plating or copper tin plating, and the movable pressing block 210 is provided with a positioning lug 2100 which is in fit connection with the positioning groove 21.
The insulating tube 2 is a ceramic insulating tube, and the melt 4 is wire-shaped, flat or narrow-diameter.
According to the utility model, the positioning strip and the positioning groove are arranged so as to facilitate the positioning and installation of the melt in the hollow cavity, and the pressing protrusion is combined to play a role in pressing so as to ensure the contact efficiency between the melt and the two end surfaces and prevent poor contact caused by loosening; through setting up the effect that thermochromic cue strip is used for playing the visual suggestion of temperature, be convenient for know high heat dissipation SMD fuse high temperature resistant performance fast when carrying out the test, thermochromic cue strip can also play the position suggestion of burning out simultaneously, the high temperature that produces when the fuse-element burns out makes thermochromic cue strip discolour to know the SMD fuse position of burning out fast, be convenient for fix a position and look for, improve the efficiency of maintaining; the explosion-proof layer is arranged for absorbing impact force generated when part of melt is fused, so that the explosion of the insulating tube is prevented from affecting surrounding electronic elements, and the protection performance and the safety are improved; the heat dissipation structure is arranged to improve the direct contact area between the inside of the insulating tube and the outside, and greatly increase the heat dissipation area, so that heat generated during melt working is prevented from accumulating in the insulating tube, the heat dissipation effect and performance are improved, and the service life and performance of the high-heat dissipation patch type fuse are prolonged; through setting up seal structure and being used for providing multiple seal structure, improve sealing performance greatly, prevent to appear because of the circumstances that high temperature environment or ageing lead to sealed effect to reduce, improve waterproof performance for high heat dissipation paster formula fuse can be under abominable environment normal use, guarantees performance, improves the suitability.
The present utility model is not limited to the above embodiment, and other high heat dissipation chip fuses 1 obtained by using the same or similar structure or device as the above embodiment of the present utility model are within the scope of the present utility model.
Claims (10)
1. A high heat dissipation patch fuse, characterized in that: the high-heat-dissipation patch type fuse comprises an insulating tube, two end caps and a melt, wherein the two end caps are respectively arranged at two ends of the insulating tube, the melt is arranged between the two end caps and in the insulating tube, the insulating tube is provided with a prompt strip, a heat dissipation layer and an explosion-proof layer, the heat dissipation layer is provided with a heat dissipation structure, and a sealing structure is arranged between the insulating tube and the end caps.
2. The high heat dissipation patch fuse of claim 1, wherein: the insulating tube is equipped with the cavity, the both ends of cavity all are equipped with the constant head tank, the constant head tank all is equipped with movable briquetting, movable briquetting all is equipped with the fixed slot, the both ends of fuse-element set up respectively in the fixed slot, the interior terminal surface of end cap all is equipped with compresses tightly the arch, compress tightly the arch all with movable briquetting laminating contact.
3. The high heat dissipation patch fuse of claim 2, wherein: the insulating tube is equipped with recess one, recess one is equipped with a plurality of through-holes one, the suggestion strip sets up in recess one, the suggestion strip is thermochromic suggestion strip, the suggestion strip is equipped with a plurality of contact portions, contact portion sets up respectively in the through-hole one, just the lateral surface of contact portion closely laminates with the medial surface of through-hole, contact portion and cavity intercommunication.
4. A high heat dissipation patch fuse as recited in claim 3, wherein: the explosion-proof layer is arranged on the inner side surface of the hollow cavity, the thickness of the explosion-proof layer is 0.3nm-0.8nm, and the explosion-proof layer is an arc-extinguishing adhesive layer.
5. The high heat dissipation patch fuse of claim 4, wherein: the insulating tube still is equipped with a plurality of through-holes two, and is a plurality of through-holes two all run through the explosion-proof layer, and with cavity intercommunication, the insulating tube still is equipped with two recess two, two recess two sets up with the opposite mode of mirror image on the lateral wall of insulating tube, the heat dissipation layer includes heat dissipation portion one and heat dissipation portion two, heat dissipation portion one sets up in the recess two, heat dissipation portion two sets up on the internal surface of arc extinguishing glue film, heat radiation structure sets up on the lateral surface of heat dissipation portion one, all be equipped with a plurality of heat conduction silica gel posts between heat dissipation portion one and the heat dissipation portion two.
6. The high heat dissipation patch fuse of claim 5, wherein: the first heat dissipation part and the second heat dissipation part are heat-conducting silica gel layers, the heat-conducting silica gel columns are respectively arranged in the second through holes and are tightly attached to the inner side faces of the second through holes, one end of each heat-conducting silica gel column is integrally welded with the first heat dissipation part, and the other end of each heat-conducting silica gel column is integrally welded with the second heat dissipation part.
7. The high heat dissipation patch fuse of claim 6, wherein: the heat dissipation structure comprises a plurality of heat dissipation grooves, wherein a plurality of first heat dissipation grooves are formed in two side faces of each heat dissipation groove, and inclined planes are arranged on the first heat dissipation grooves.
8. The high heat dissipation patch fuse of claim 7, wherein: the sealing structure comprises sealing grooves and sealing convex blocks, the sealing convex blocks are respectively arranged at two ends of the insulating tube, the sealing grooves are respectively arranged at the inner end face of the end cap, the sealing convex blocks are provided with sealing inclined planes in an inverted mode, the sealing convex blocks are further provided with step convex blocks, the sealing grooves are provided with sealing inclined planes I which are matched with the sealing inclined planes in an inverted mode, the sealing grooves are further provided with step grooves, the sealing convex blocks are matched with the sealing grooves, the sealing inclined planes are matched with the sealing inclined planes I, the step convex blocks are matched with the step grooves, and sealing glue filling layers are arranged between the step convex blocks and the step grooves.
9. The high heat dissipation patch fuse of claim 8, wherein: the end cap and the movable pressing block are made of pure copper, copper gold plating, copper silver plating, copper nickel plating or copper tin plating, and the movable pressing block is provided with a positioning lug which is connected with the positioning groove in a matched mode.
10. The high heat dissipating patch fuse of claim 9, wherein: the insulating tube is a ceramic insulating tube, and the melt is in a wire shape, a flat shape or a narrow diameter shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320429245.0U CN219393319U (en) | 2023-03-08 | 2023-03-08 | High heat dissipation patch type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320429245.0U CN219393319U (en) | 2023-03-08 | 2023-03-08 | High heat dissipation patch type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219393319U true CN219393319U (en) | 2023-07-21 |
Family
ID=87198251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320429245.0U Active CN219393319U (en) | 2023-03-08 | 2023-03-08 | High heat dissipation patch type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219393319U (en) |
-
2023
- 2023-03-08 CN CN202320429245.0U patent/CN219393319U/en active Active
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