CN113314285A - Self-recovery fuse - Google Patents
Self-recovery fuse Download PDFInfo
- Publication number
- CN113314285A CN113314285A CN202110695394.7A CN202110695394A CN113314285A CN 113314285 A CN113314285 A CN 113314285A CN 202110695394 A CN202110695394 A CN 202110695394A CN 113314285 A CN113314285 A CN 113314285A
- Authority
- CN
- China
- Prior art keywords
- self
- heat dissipation
- base
- guide block
- recovery fuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 33
- 230000017525 heat dissipation Effects 0.000 claims abstract description 48
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 241000883990 Flabellum Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/082—Cooling, heating or ventilating arrangements using forced fluid flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/084—Cooling, heating or ventilating arrangements using self-cooling, e.g. fins, heat sinks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Ceramic Engineering (AREA)
- Electromagnetism (AREA)
- Fuses (AREA)
Abstract
The invention discloses a self-recovery fuse, which comprises a base, a self-recovery fuse body and a heat dissipation cover, wherein a guide block is horizontally arranged in the base in a penetrating manner, threaded holes are respectively formed in two ends of the guide block, fixing screws are connected in the threaded holes in a threaded manner, fixture blocks are respectively and fixedly arranged on two sides of the base, a plurality of sockets are arranged on the upper end surface of the base, a plurality of clamping grooves are arranged on the upper end surface of the guide block, the self-recovery fuse body passes through the sockets to be mutually clamped with the clamping grooves, buckles are respectively and fixedly arranged on the bottoms of two sides of the heat dissipation cover and mutually clamped with the fixture blocks, heat dissipation fins are respectively and fixedly arranged on two sides of the interior of the heat dissipation cover, a pair of fans are embedded on the upper end surface of the heat dissipation cover, a motor is respectively and fixedly arranged at the center of the bottom of the interior of each heat dissipation fan, and fan blades are respectively sleeved on output shafts at the upper end of the motor. Has high practical value.
Description
Technical Field
The invention relates to the technical field of fuses, in particular to a self-recovery fuse.
Background
The PTC thermistor for overcurrent protection is a protection element for automatically protecting and automatically recovering abnormal temperature and abnormal current, and is commonly called "self-recovery fuse" or "ten thousand-time fuse". The PTC thermistor for overcurrent protection can replace the traditional fuse and can be widely used for overcurrent and overheat protection of motors, transformers, switching power supplies, electronic circuits and the like, and the PTC thermistor for overcurrent protection limits the consumption of the whole circuit through the sudden change of the resistance value of the PTC thermistor to reduce the residual current value. The traditional fuse can not be recovered automatically after the circuit is fused, the PTC thermistor for overcurrent protection can be recovered to a pre-protection state after the fault is removed, and the overcurrent and overheat protection function can be realized when the fault occurs again. The existing self-recovery fuse generates heat when passing through large current, and the resistance value rises and distributes most of voltage when reaching a critical value, so that an electrical element is protected, but after circuit fault treatment is completed, the heat dissipation of the self-recovery fuse is slow, so that the internal resistance value of the fuse cannot be reduced, and the current connection time is slow. We therefore improve on this and propose a self-healing fuse.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention discloses a self-recovery fuse which comprises a base, a self-recovery fuse body and a heat dissipation cover, wherein a guide block is horizontally arranged in the base in a penetrating mode, threaded holes are formed in two ends of the guide block, fixing screws are connected with the threaded holes in a threaded mode, clamping blocks are fixedly arranged on two sides of the base, a plurality of inserting ports are formed in the upper end face of the base, a plurality of clamping grooves are formed in the upper end face of the guide block, the self-recovery fuse body penetrates through the inserting ports to be mutually clamped with the clamping grooves, buckles are fixedly arranged at the bottoms of two sides of the heat dissipation cover and mutually clamped with the clamping blocks, and cooling fins are fixedly arranged on two sides of the interior of the heat dissipation cover.
As a preferred technical scheme of the invention, a pair of fans are embedded and installed on the upper end surface of the heat dissipation cover, and a plurality of air holes are formed in the bottom inside the fans.
As a preferred technical scheme of the invention, the centers of the bottoms in the radiating fans are fixedly provided with motors, and output shafts at the upper ends of the motors are sleeved with fan blades.
In a preferred embodiment of the present invention, the heat dissipation fins are distributed in a wave shape, and the heat dissipation fins are made of brass.
As a preferred technical scheme of the invention, the base and the heat dissipation cover are both made of PBT materials, and the guide block is made of conductive metal materials.
As a preferred technical scheme of the invention, a plurality of heat dissipation holes are formed in both sides of the heat dissipation cover, and the heat dissipation holes are vertically distributed at equal intervals.
As a preferred technical solution of the present invention, one end of the guide block is a positive electrode, and the other end of the guide block is a negative electrode.
The invention has the beneficial effects that:
1. according to the self-recovery fuse, the base and the heat dissipation cover are both made of PBT materials, the base and the heat dissipation cover are prevented from conducting electricity, the guide block horizontally penetrates through the base and is made of conducting metal, a user can install a self-recovery fuse body on the base through a socket and a clamping groove, the user can connect an electric wire through fixing screws in threaded connection on two sides of the guide block, the clamping blocks installed on two sides of the base are mutually clamped with buckles installed on two sides of the heat dissipation cover, and the user can clamp the heat dissipation cover on the base;
2. according to the self-recovery fuse, the wavy radiating fins are arranged on two sides inside the radiating cover, so that heat inside the radiating cover can be conveniently transmitted, the pair of radiating fans are embedded at the upper end of the radiating cover, the blades are driven by the inside of the fans to rotate through the motor, the plurality of air holes are formed in the bottom of the fans, so that cold air can conveniently enter the radiating cover, and internal hot air can be conveniently dissipated through the plurality of radiating holes formed in two sides of the radiating cover, so that the radiating effect on the self-recovery fuse body is improved;
3. the self-recovery fuse has the advantages that the self-recovery fuse is simple and reasonable in structure, novel in design and simple and convenient to operate, can effectively improve the heat dissipation effect of the self-recovery fuse, and has high practical value, and a plurality of self-recovery fuse bodies are convenient to install by a user through the plurality of sockets formed in the base, so that electrical elements with different current intensity requirements are protected.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of a self-healing fuse of the present invention;
FIG. 2 is a schematic diagram of a self-healing fuse in a front cross-section according to the present invention;
FIG. 3 is a side cross-sectional view of a self-healing fuse in accordance with the present invention.
In the figure: 1. a base; 2. a self-healing fuse body; 3. a heat dissipation cover; 4. buckling; 5. a guide block; 6. fixing screws; 7. a socket; 8. heat dissipation holes; 9. a fan; 10. a motor; 11. a clamping block; 12. a card slot; 13. a fan blade; 14. and a heat sink.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-3, the self-recovery fuse comprises a base 1, a self-recovery fuse body 2 and a heat dissipation cover 3, wherein a guide block 5 is horizontally installed in the base 1 in a penetrating manner, threaded holes are formed in both ends of the guide block 5, fixing screws 6 are connected to the inner threads of the threaded holes in a threaded manner, clamping blocks 11 are fixedly installed on both sides of the base 1, a plurality of sockets 7 are formed in the upper end face of the base 1, a plurality of clamping grooves 12 are formed in the upper end face of the guide block 5, the self-recovery fuse body 2 penetrates through the sockets 7 to be mutually clamped with the clamping grooves 12, buckles 4 are fixedly installed at the bottoms of both sides of the heat dissipation cover 3, the buckles 4 are mutually clamped with the clamping blocks 11, and heat dissipation fins 14 are fixedly installed on both sides of the heat dissipation cover 3.
Wherein, the radiator cap 3 up end inlays to establish and installs a pair of fan 9, the inside bottom of fan 9 is provided with a plurality of bleeder vents, and through installing fan 9, and the fan 9 bottom is provided with a plurality of bleeder vents, and the cold wind that the fan 9 of being convenient for produced when rotating blows in inside the radiator cap 3, dispels the heat to self-resuming fuse body 2.
Wherein, the inside bottom center department of radiator fan 9 all fixed mounting has motor 10, just motor 10 upper end output shaft all overlaps and is equipped with flabellum 13, through installing motor 10 for motor 10 can drive flabellum 13 when rotating and rotate, thereby produces cold wind and dispels the heat to self-resuming fuse body 2.
Wherein, fin 14 is the wave form and distributes, just fin 14 is the brass material, through setting up fin 14 into the wave form, and for the brass material, has improved the heat conduction effect of fin greatly, absorbs the inside heat of cooling cover 3.
Wherein, base 1 and heat dissipation lid 3 are the PBT material, guide block 5 is the conductive metal material, and through all setting up base 1 and heat dissipation lid 3 to the PBT material, improved base 1 and heat dissipation lid 3's security greatly, prevent that the electric conduction from causing the influence to user or electrical apparatus.
Wherein, a plurality of louvres 8 have all been seted up to the 3 both sides of cooling lid, just 8 vertical equidistance of louvre distribute, through seting up louvre 8, the inside heat of cooling lid 3 of being convenient for is discharged, improves the radiating effect of self-resuming fuse 2.
Wherein, 5 one end of guide block is positive grade, just 5 other ends of guide block are the negative pole, establish into anodal other end through 5 one end of guide block and establish to the negative pole, and the user of being convenient for installs.
The working principle is as follows: when in use, the self-recovery fuse avoids the electric conduction of the base 1 and the heat dissipation cover 3 by setting the base 1 and the heat dissipation cover 3 as PBT materials, the self-recovery fuse body 2 is installed on the base 1 through the guide block 5 horizontally installed in the base 1 in a penetrating way, the guide block 5 is made of conductive metal, a user can conveniently install the self-recovery fuse body 2 on the base 1 through the socket 7 and the clamping groove 12, the user can conveniently connect electric wires through the fixing screws 6 in threaded connection with two sides of the guide block 5, the user can conveniently clamp the heat dissipation cover 3 on the base 1 through the clamping blocks 11 installed on two sides of the base 1 and the clamping buckles 4 installed on two sides of the heat dissipation cover 3, the heat dissipation cover 3 can conveniently transmit the heat in the heat dissipation cover 3 through the wavy heat dissipation fins 14 installed on two sides of the heat dissipation cover 3, the pair of heat dissipation fans 9 installed on the upper end of the heat dissipation cover 3 in an embedded way, the fans 9 drive the fan blades 13 to rotate through the motor 10, the fan 9 bottom is provided with a plurality of bleeder vents, and the cold wind of being convenient for enters into the cooling cover 3 inside, through a plurality of louvres 8 of seting up in the 3 both sides of cooling cover, the inside hot-blast effluvium of being convenient for, and then improved the radiating effect to self-resuming fuse body 2, through a plurality of sockets 7 of seting up on base 1, the person of facilitating the use installs a plurality of self-resuming fuse bodies 2, protects the electrical components that different current strength needs.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A self-recovery fuse comprises a base (1), a self-recovery fuse body (2) and a heat dissipation cover (3), it is characterized in that a guide block (5) is horizontally arranged in the base (1) in a penetrating way, both ends of the guide block (5) are provided with threaded holes, and the threaded hole is internally connected with a fixing screw (6) in a threaded manner, clamping blocks (11) are fixedly arranged on both sides of the base (1), the upper end surface of the base (1) is provided with a plurality of jacks (7), the upper end surface of the guide block (5) is provided with a plurality of clamping grooves (12), the self-recovery fuse body (2) passes through the socket (7) and is mutually clamped with the clamping groove (12), the bottom parts of the two sides of the heat dissipation cover (3) are fixedly provided with buckles (4), the buckles (4) are mutually clamped with the clamping blocks (11), and radiating fins (14) are fixedly arranged on two sides in the radiating cover (3).
2. The self-recovery fuse as claimed in claim 1, wherein a pair of fans (9) are embedded on the upper end surface of the heat dissipation cover (3), and a plurality of air holes are arranged at the bottom inside the fans (9).
3. The self-recovery fuse according to claim 1, wherein a motor (10) is fixedly mounted at the center of the bottom inside the heat dissipation fan (9), and fan blades (13) are sleeved on output shafts at the upper end of the motor (10).
4. A self-healing fuse according to claim 1, characterized in that said fins (14) are distributed in a wave-like manner and said fins (14) are made of brass.
5. The self-recovery fuse according to claim 1, wherein the base (1) and the heat dissipating cover (3) are made of PBT, and the guide block (5) is made of conductive metal.
6. The self-recovery fuse as claimed in claim 1, wherein a plurality of heat dissipation holes (8) are formed on both sides of the heat dissipation cover (3), and the heat dissipation holes (8) are vertically and equidistantly distributed.
7. A self-healing fuse according to claim 1, characterized in that said guide block (5) has a positive polarity at one end and a negative polarity at the other end of said guide block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695394.7A CN113314285A (en) | 2021-06-23 | 2021-06-23 | Self-recovery fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695394.7A CN113314285A (en) | 2021-06-23 | 2021-06-23 | Self-recovery fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113314285A true CN113314285A (en) | 2021-08-27 |
Family
ID=77379842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110695394.7A Pending CN113314285A (en) | 2021-06-23 | 2021-06-23 | Self-recovery fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113314285A (en) |
-
2021
- 2021-06-23 CN CN202110695394.7A patent/CN113314285A/en active Pending
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