CN118039429A - Fuse for over-current protection - Google Patents
Fuse for over-current protection Download PDFInfo
- Publication number
- CN118039429A CN118039429A CN202410441785.XA CN202410441785A CN118039429A CN 118039429 A CN118039429 A CN 118039429A CN 202410441785 A CN202410441785 A CN 202410441785A CN 118039429 A CN118039429 A CN 118039429A
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- Prior art keywords
- fixedly connected
- fuse
- frame
- rod
- protection
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 238000001125 extrusion Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/205—Electric connections to contacts on the base
Landscapes
- Fuses (AREA)
Abstract
The invention relates to the technical field of fuses and discloses a fuse for over-current protection, which comprises a screw hole plate, wherein the top of the screw hole plate is fixedly connected with a protective cover, the top of the protective cover is hinged with a sealing plate, the surface of the sealing plate is communicated with a round hole column, the fuse is arranged in the protective cover, and the end part of the fuse is provided with a cable. The fuse is arranged in the protective cover and is contacted with the mounting component, the fuse is clamped and fixed by the mounting component, the convenience of the fuse in the mounting process is improved, the protective component is arranged in the protective cover and is positioned at the end part of the fuse, the cable is clamped and fixed by the protective component, the cable is prevented from falling off after the fuse is triggered, the cable is prevented from falling to the outer end with sparks, and the safety component is arranged in the protective cover and is used for protecting the fuse, so that sparks generated by the fuse are prevented from splashing.
Description
Technical Field
The invention relates to the technical field of fuses, in particular to a fuse for over-current protection.
Background
The fuse is an electric appliance which fuses a melt by heat generated by the fuse when a current exceeds a predetermined value to open a circuit. The current protector manufactured by the principle is widely applied to high-low voltage distribution systems, control systems and electric equipment, is used as a protector for short circuit and overcurrent, and is one of the most common protection devices;
when the fuse is fused because of the current overrun, a large amount of heat can be stored in the fuse, so that the fuse is fused by utilizing heat, spark can be splashed out in the fuse after the fuse is fused, the surface of the cable is easily softened due to the high temperature generated by the fuse, meanwhile, the cable can be at a higher temperature, and after the spark is contacted with the high-temperature cable, the spark can possibly cause the combustion of the cable, so that the using effect of the fuse is affected.
Disclosure of Invention
The present invention is directed to a fuse for over-current protection, which solves the problems set forth in the background art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a fuse for over-current protection, which comprises a screw hole plate, wherein the top of the screw hole plate is fixedly connected with a protective cover, the top of the protective cover is hinged with a sealing plate, the surface of the sealing plate is communicated with a round hole column, the interior of the protective cover is provided with a fuse, the end part of the fuse is provided with a cable, and the top of the screw hole plate is in threaded connection with a screw rod, and the fuse further comprises:
The mounting component comprises a supporting rod, the surface of the supporting rod is fixedly connected with a base, the bottom of the base is fixedly connected with the top of the screw hole plate, the top of the supporting rod is fixedly connected with a sliding plate, and the surface of the sliding plate is slidably connected with a right-angle rod;
The protection component comprises a cylindrical rod, the end part of the cylindrical rod is fixedly connected with the surface of the right-angle rod, the surface of the cylindrical rod is fixedly connected with a positioning cylinder, the surface of the positioning cylinder is fixedly connected with a push rod, and one end of the push rod, far away from the positioning cylinder, is fixedly connected with a rubber pad;
the inside of the protective cover is provided with a safety component.
Further, the number of the round hole columns is two, the two round hole columns are symmetrically arranged by taking the protective cover as the center, and one end of the cable, which is far away from the fuse, extends to the outer end of the protective cover through the round hole columns.
Further, the installation component comprises a positioning bracket, the end part of the positioning bracket is fixedly connected with the end part of the sliding plate, the surface of the right-angle rod is fixedly connected with an elastic sheet, the surface of the right-angle rod is fixedly connected with a sliding ball frame, and one end of the right-angle rod, which is far away from the sliding plate, is fixedly connected with an extrusion plate;
the top fixedly connected with center expansion bracket of slide, the tip and the fixed surface connection of right angle pole of center expansion bracket.
Further, one end of the elastic piece far away from the right angle rod is fixedly connected with the top of the positioning support, one end of the sliding ball frame far away from the right angle rod is in contact with the surface of the sliding plate, and one end of the extrusion plate far away from the right angle rod is in contact with the surface of the fuse.
Further, the protection component comprises a positioning frame, the end part of the positioning frame is fixedly connected with the surface of the supporting rod, a bent frame is fixedly connected with the surface of the positioning frame, an elastic rod is hinged to the top of the bent frame, and one end of the elastic rod, far away from the bent frame, is hinged to the surface of the positioning cylinder;
The inner wall fixedly connected with round bar of protection casing, the through-hole has been seted up on the surface of round bar, the surface sliding connection of round bar has the movable frame, the bottom fixedly connected with elasticity telescopic link of movable frame, the bottom fixedly connected with atress bullet frame of elasticity telescopic link, the one end fixedly connected with semicircle cover that elasticity telescopic link was kept away from to the atress bullet frame, the fixed surface of movable frame is connected with the trace.
Further, one end of the rubber pad, which is far away from the ejector rod, is contacted with the surface of the fuse, one end of the linkage rod, which is far away from the moving frame, is fixedly connected with the surface of the cylindrical rod, and the positioning cylinder is positioned at the center of the surface of the cylindrical rod.
Further, two movable frames are arranged on the surface of the round rod, the two movable frames are symmetrically arranged by taking the round rod as a center, the inner wall of the semicircular cover is in contact with the surface of the cable, the bottom of the linkage rod is in contact with the top of the right-angle rod, and the through hole is positioned at the center of the round rod.
Further, the safety component comprises a top frame, the bottom of the top frame is fixedly connected with the top of the movable frame, a tripod is hinged to one end, far away from the movable frame, of the top frame, a vertical frame is fixedly connected to the inner wall of the tripod, a contact plate is fixedly connected to the bottom of the vertical frame, and a safety frame is fixedly connected to the top of the contact plate;
The bottom fixedly connected with mount of contact plate, the bottom fixedly connected with trapezoidal piece of mount.
Further, the surface of tripod contacts with the inner wall of through-hole, the bottom of contact plate contacts with the top of cable, trapezoidal piece sets up the below of cable, the center of tripod is articulated the setting, the tip of safety frame contacts with the inner wall of protection casing.
The invention has the following beneficial effects:
The protective cover is internally provided with the mounting part, the fuse is contacted with the mounting part when being mounted in the protective cover, the fuse is clamped and fixed by the mounting part, the convenience of the fuse in mounting is improved, the protective part is arranged at the end part of the fuse in the protective cover, the cable is clamped and fixed by the protective part, the cable is prevented from falling off with the cable after being triggered, the cable is prevented from falling to the outer end with sparks to be dangerous, the safety part is arranged in the protective cover, the fuse is protected by the safety part, and sparks generated by the fuse are prevented from splashing.
According to the invention, the supporting rod supports and fixes the sliding plate through the base, the end part of the sliding plate supports and fixes the elastic sheet through the positioning bracket, the right-angle rod pushes the right-angle rod to move towards the center of the sliding plate by utilizing the elasticity of the elastic sheet, the extrusion plates at the end parts of the right-angle rod are mutually contacted, when the fuse is required to be installed in the protective cover, the fuse can push the extrusion plates to move away from each other by inclination due to the inclined arrangement of the top parts of the extrusion plates, the fuse can be inserted in the extrusion plates, the extrusion plates can extrude and fix the fuse through the elasticity of the elastic sheet, the right-angle rod is in sliding connection with the surface of the sliding plate through the ball frame, and the right-angle rod is positioned at the top part of the sliding plate by utilizing the central expansion frame, so that the stability of the right-angle rod when the fuse is clamped and installed is improved.
When the right angle rod moves to the surface of the fuse, the right angle rod can push the ejector rod to move to the surface of the fuse through the cylindrical rod, so that the rubber pad can be in contact with the surface of the fuse, the fuse is extruded and fixed, the cylindrical rod pushes the movable frame to move on the surface of the round rod through the linkage rod when moving, the movable frame pushes the semicircular cover to extrude and fix the cable through the stressed elastic frame, the cable can be fixed in the protective cover through extrusion of the semicircular cover, the cable is prevented from being separated from the cable after the fuse melt of the fuse, the cable is prevented from falling down to generate danger, and the cable is prevented from carrying the spark to fall to generate danger.
After the fuse melt of the fuse is fused, the rubber pad is damaged due to high temperature, the elastic rod continuously pushes the cylindrical rod to move towards the surface of the fuse through elasticity, the surface of the fuse is damaged after triggering, the ejector rod enters into the fuse through the elasticity of the elastic rod, the tripod can be pushed by enough pressure of the movable frame to push the contact plate to move downwards, the safety frame corresponds to the round hole column when the contact plate moves downwards, therefore, the protective cover is sealed, sparks generated by the fuse are prevented from splashing everywhere, the trapezoidal blocks are arranged at the bottom of the contact plate, the safety frame is positioned through the trapezoidal blocks, and the use effect of the fuse is prevented from being reduced due to dislocation of the safety frame and the round hole column.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a protective cover according to the present invention;
FIG. 3 is a schematic diagram of the structure of the present invention;
FIG. 4 is a schematic view of the overall structure of the mounting member of the present invention;
FIG. 5 is a schematic view of a support bar according to the present invention;
FIG. 6 is a schematic view of the overall structure of the protective member of the present invention;
FIG. 7 is a schematic view of the round bar structure of the present invention;
fig. 8 is a schematic view of the overall structure of the safety component of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
In the figure: 1. a screw plate; 2. a protective cover; 3. a sealing plate; 4. a round hole column; 5. a cable; 6. a fuse; 7. a screw; 8. a mounting member; 9. a protective member; 10. a safety component; 20. a base; 21. a slide plate; 22. a positioning bracket; 23. a right angle lever; 24. a spring plate; 25. an extrusion plate; 26. a ball sliding frame; 27. a support rod; 28. a central expansion bracket; 30. a round bar; 31. a through hole; 32. a positioning frame; 33. bending the frame; 34. an elastic rod; 35. a positioning cylinder; 36. a push rod; 37. a rubber pad; 38. a cylindrical rod; 39. a moving rack; 40. a linkage rod; 41. an elastic telescopic rod; 42. a semi-circular cover; 43. a stress spring frame; 50. a top frame; 51. a tripod; 52. a vertical frame; 53. a contact plate; 54. a fixing frame; 55. a trapezoid block; 56. and a safety frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the invention discloses a fuse for over-current protection, which comprises a screw plate 1, wherein the top of the screw plate 1 is fixedly connected with a protection cover 2, the top of the protection cover 2 is hinged with a sealing plate 3, the surface of the sealing plate 3 is communicated with a round hole column 4, a mounting part 8 is arranged in the protection cover 2, the fuse 6 is contacted with the mounting part 8 when being mounted in the protection cover 2, the mounting part 8 is used for clamping and fixing the fuse 6, the convenience of the fuse 6 during mounting is improved, a protection part 9 is arranged in the protection cover 2, the protection part 9 is positioned at the end part of the fuse 6, and is clamped and fixed with a cable 5 through the protection part 9, the cable 5 is prevented from falling off after triggering the fuse 6, the cable 5 is prevented from falling to the outer end after ignition, a safety part 10 is arranged in the protection cover 2, the fuse 6 is protected by the safety part 10, the fuse 6 is prevented from producing sparks by a screw rod, the fuse 6 is arranged in the protection cover 2, the end part of the fuse 6 is provided with a cable 5, the top of the screw plate 1 is connected with a screw 7, and the fuse for over-current protection is further provided with a protection cover, and the protection cover is provided with a protection part 7, and is arranged on the inside of the protection cover.
The installation component 8, the installation component 8 includes the bracing piece 27, the surface of bracing piece 27 fixedly connects with the base 20, the bottom of base 20 fixedly connects with top of the spiral plate 1, the top of bracing piece 27 fixedly connects with the slide 21, the surface of slide 21 slidably connects with the right-angle pole 23;
the protection component 9 comprises a cylindrical rod 38, the end part of the cylindrical rod 38 is fixedly connected with the surface of the right-angle rod 23, the surface of the cylindrical rod 38 is fixedly connected with a positioning cylinder 35, the surface of the positioning cylinder 35 is fixedly connected with a push rod 36, and one end, far away from the positioning cylinder 35, of the push rod 36 is fixedly connected with a rubber pad 37;
the interior of the hood 2 is provided with a safety member 10.
The number of the round hole columns 4 is two, the two round hole columns 4 are symmetrically arranged with the protection cover 2 as the center, and one end of the cable 5, which is far away from the fuse 6, extends to the outer end of the protection cover 2 through the round hole columns 4.
The mounting part 8 comprises a positioning bracket 22, the end part of the positioning bracket 22 is fixedly connected with the end part of a sliding plate 21, the surface of a right-angle rod 23 is fixedly connected with a spring piece 24, a supporting rod 27 is used for supporting and fixing the sliding plate 21 through a base 20, the end part of the sliding plate 21 is used for supporting and fixing the spring piece 24 through the positioning bracket 22, a right-angle rod 23 is pushed to move towards the center of the sliding plate 21 by the elasticity of the spring piece 24, the squeeze plates 25 at the end part of the right-angle rod 23 are mutually contacted, when the fuse 6 is required to be mounted in the protective cover 2, the top of the squeeze plates 25 is obliquely arranged, the fuse 6 can push the squeeze plates 25 to move away from each other through the inclination, after the fuse 6 is inserted in the squeeze plates 25, the fuse 6 can be squeezed and fixed through the elasticity of the spring piece 24, the right-angle rod 23 is connected with the surface of the sliding plate 21 in a sliding manner through a slide ball frame 26, and the center telescopic frame 28 is positioned at the top of the sliding plate 21, so that the stability of the right-angle rod 23 when the fuse 6 is clamped and mounted is improved, the surface of the right-angle rod 23 is fixedly connected with the slide ball frame 26, and one end of the right-angle rod 23 is far away from the squeeze plates 25 fixedly connected with the slide plates 25;
The top of the slide plate 21 is fixedly connected with a central expansion bracket 28, and the end part of the central expansion bracket 28 is fixedly connected with the surface of the right-angle rod 23.
One end of the elastic sheet 24, which is far away from the right angle rod 23, is fixedly connected with the top of the positioning bracket 22, one end of the sliding ball frame 26, which is far away from the right angle rod 23, is contacted with the surface of the sliding plate 21, and one end of the extrusion plate 25, which is far away from the right angle rod 23, is contacted with the surface of the fuse 6.
The protection part 9 comprises a positioning frame 32, the end part of the positioning frame 32 is fixedly connected with the surface of a supporting rod 27, a bent frame 33 is fixedly connected with the surface of the positioning frame 32, when the right-angle rod 23 moves towards the surface of the fuse 6, the right-angle rod 23 pushes a push rod 36 to move towards the surface of the fuse 6 through a cylindrical rod 38, so that a rubber pad 37 can be in contact with the surface of the fuse 6, the fuse 6 is extruded and fixed, the cylindrical rod 38 pushes a movable frame 39 to move on the surface of the round rod 30 through a linkage rod 40 when moving, the movable frame 39 pushes a semicircular cover 42 to extrude and fix the cable 5 through a stressed elastic frame 43, so that the cable 5 can be fixed in the protection cover 2 through the extrusion of the semicircular cover 42, the cable 5 is prevented from being separated from the cable 5 after the melt of the fuse 6, the cable 5 is prevented from falling downwards to generate danger, the top of the bent frame 33 is prevented from carrying spark to drop, one end of the elastic rod 34 far away from the bent frame 33 is hinged with the surface of the positioning cylinder 35;
The inner wall fixedly connected with round bar 30 of protection casing 2, through-hole 31 has been seted up on the surface of round bar 30, and the surface sliding connection of round bar 30 has movable frame 39, and movable frame 39's bottom fixedly connected with elastic telescopic handle 41, elastic telescopic handle 41's bottom fixedly connected with atress bullet frame 43, the one end fixedly connected with semicircle cover 42 that elastic telescopic handle 41 was kept away from to atress bullet frame 43, movable frame 39's surface fixedly connected with interlock pole 40.
One end of the rubber pad 37, which is far away from the ejector rod 36, is in contact with the surface of the fuse 6, and one end of the linkage rod 40, which is far away from the moving frame 39, is fixedly connected with the surface of the cylindrical rod 38, and the positioning cylinder 35 is positioned at the center of the surface of the cylindrical rod 38.
The surface of the round bar 30 is provided with two moving frames 39, the two moving frames 39 are symmetrically arranged with the round bar 30 as a center, the inner wall of the semicircular cover 42 is in contact with the surface of the cable 5, the bottom of the linkage bar 40 is in contact with the top of the right-angle bar 23, and the through hole 31 is positioned at the center of the round bar 30.
The safety component 10 comprises a top frame 50, the bottom of the top frame 50 is fixedly connected with the top of a movable frame 39, one end of the top frame 50 far away from the movable frame 39 is hinged with a tripod 51, the inner wall of the tripod 51 is fixedly connected with a vertical frame 52, after the fuse body of the fuse 6 is fused, a rubber pad 37 is damaged due to high temperature, an elastic rod 34 can continuously push a cylindrical rod 38 to move towards the surface of the fuse 6 through elasticity, the surface of the fuse 6 is damaged after triggering, at the moment, an ejector rod 36 enters the interior of the fuse 6 through elasticity of the elastic rod 34, at the moment, the tripod 51 can be subjected to enough pressure of the movable frame 39 to push a contact plate 53 to move downwards, at the moment, a safety frame 56 corresponds to a round hole column 4 when the contact plate 53 moves downwards, so as to seal a protective cover 2, the safety frame 56 is prevented from splashing everywhere, a trapezoidal block 55 is arranged at the bottom of the contact plate 53, the safety frame 56 is positioned through the trapezoidal block 55, the use effect of the fuse 6 is prevented from being reduced due to dislocation caused by the fact that the safety frame 56 and the round hole column 4 is generated, at the bottom of the vertical frame 52 is fixedly connected with the contact plate 53, and the contact plate 53 is fixedly connected with the top of the safety frame 56;
the bottom of the contact plate 53 is fixedly connected with a fixing frame 54, and the bottom of the fixing frame 54 is fixedly connected with a trapezoid block 55.
The surface of the tripod 51 contacts with the inner wall of the through hole 31, the bottom of the contact plate 53 contacts with the top of the cable 5, the trapezoid block 55 is arranged below the cable 5, the center end of the tripod 51 is hinged, and the end of the safety frame 56 contacts with the inner wall of the protective cover 2.
When in use, the installation part 8 is arranged in the protective cover 2, the fuse 6 is contacted with the installation part 8 when being installed in the protective cover 2, the fuse 6 is clamped and fixed by the installation part 8, the convenience of the fuse 6 when being installed is improved, the protection part 9 is arranged in the protective cover 2, the protection part 9 is positioned at the end part of the fuse 6, the cable 5 is clamped and fixed by the protection part 9, the cable 5 is prevented from falling off after the fuse 6 is triggered, the cable 5 is caused to catch fire and fall to the outer end to be dangerous, the safety part 10 is arranged in the protective cover 2, the fuse 6 is protected by the safety part 10, the spark and splash generated by the fuse 6 are prevented, the support rod 27 supports and fixes the slide plate 21 by the base 20, the end part of the slide plate 21 supports and fixes the elastic sheet 24 by the positioning bracket 22, the right angle rod 23 pushes the right angle rod 23 to move towards the center of the sliding plate 21 by utilizing the elasticity of the elastic sheet 24, the extrusion plates 25 at the end parts of the right angle rod 23 are contacted with each other, when the fuse 6 is required to be installed in the protective cover 2, as the top parts of the extrusion plates 25 are obliquely arranged, the fuse 6 can push the extrusion plates 25 to move away from each other by inclination, after the fuse 6 is inserted in the extrusion plates 25, the extrusion plates 25 can extrude and fix the fuse 6 by the elasticity of the elastic sheet 24, the right angle rod 23 is in sliding connection with the surface of the sliding plate 21 by the sliding ball frame 26 and is positioned at the top part of the sliding plate 21 by utilizing the central expansion frame 28, so that the stability of the right angle rod 23 for clamping and installing the fuse 6 is improved, when the right angle rod 23 moves towards the surface of the fuse 6, the push rod 36 is pushed by the cylindrical rod 38 to move towards the surface of the fuse 6, the rubber pad 37 can be in contact with the surface of the fuse 6, the fuse 6 is extruded and fixed, the cylindrical rod 38 pushes the movable frame 39 to move on the surface of the round rod 30 through the linkage rod 40 when moving, the movable frame 39 pushes the semicircular cover 42 to extrude and fix the cable 5 through the stressed elastic frame 43, the cable 5 can be fixed in the protective cover 2 through extrusion of the semicircular cover 42, the cable 5 is prevented from being separated from the cable 5 after fused by the melt of the fuse 6, the cable 5 is prevented from falling down to generate danger, the rubber pad 37 is prevented from carrying sparks to fall to generate danger after fused by the melt of the fuse 6, the elastic rod 34 continuously pushes the cylindrical rod 38 to move to the surface of the fuse 6 due to high temperature, the surface of the fuse 6 is prevented from being damaged after triggering by the elastic rod 34, the triangular frame 51 can be subjected to enough pressure of the movable frame 39 to push the contact plate 53 to move downwards, the safety frame 56 can be corresponding to the round hole post 4 when the contact plate 53 moves downwards, the protective cover 2 is prevented from being processed by the safety frame 56, and the safety block 55 is prevented from generating the safety block 55 to the bottom of the fuse block 55 when the fuse block is arranged at the bottom of the fuse block 55, and the safety block 55 is prevented from generating the safety block 55.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (9)
1. The utility model provides a fuse for protection of passing electricity, includes screw board (1), the top fixedly connected with protection casing (2) of screw board (1), the top of protection casing (2) articulates there is closing plate (3), the surface intercommunication of closing plate (3) has round hole post (4), the inside of protection casing (2) is provided with fuse (6), the tip of fuse (6) is provided with cable (5), the top threaded connection of screw board (1) has screw rod (7), its characterized in that still includes:
The mounting component (8), the mounting component (8) comprises a supporting rod (27), a base (20) is fixedly connected to the surface of the supporting rod (27), the bottom of the base (20) is fixedly connected with the top of the screw hole plate (1), a sliding plate (21) is fixedly connected to the top of the supporting rod (27), and a right-angle rod (23) is slidably connected to the surface of the sliding plate (21);
the protection component (9), the protection component (9) comprises a cylindrical rod (38), the end part of the cylindrical rod (38) is fixedly connected with the surface of the right-angle rod (23), the surface of the cylindrical rod (38) is fixedly connected with a positioning cylinder (35), the surface of the positioning cylinder (35) is fixedly connected with a push rod (36), and one end, far away from the positioning cylinder (35), of the push rod (36) is fixedly connected with a rubber pad (37);
A safety component (10) is arranged in the protective cover (2);
The protection part (9) comprises a locating frame (32), the end part of the locating frame (32) is fixedly connected with the surface of the supporting rod (27), a bent frame (33) is fixedly connected with the surface of the locating frame (32), an elastic rod (34) is hinged to the top of the bent frame (33), and one end, far away from the bent frame (33), of the elastic rod (34) is hinged to the surface of the locating cylinder (35).
2. The fuse for overcurrent protection according to claim 1, wherein: the number of the round hole columns (4) is two, the two round hole columns (4) are symmetrically arranged by taking the protection cover (2) as a center, and one end of the cable (5) away from the fuse (6) extends to the outer end of the protection cover (2) through the round hole columns (4).
3. The fuse for overcurrent protection according to claim 1, wherein: the mounting component (8) comprises a positioning bracket (22), the end part of the positioning bracket (22) is fixedly connected with the end part of the sliding plate (21), a spring piece (24) is fixedly connected with the surface of the right-angle rod (23), a sliding ball frame (26) is fixedly connected with the surface of the right-angle rod (23), and an extrusion plate (25) is fixedly connected with one end of the right-angle rod (23) far away from the sliding plate (21);
The top of slide (21) fixedly connected with center expansion bracket (28), the tip of center expansion bracket (28) is connected with the surface fastening of right angle pole (23).
4. A fuse for over-current protection as defined in claim 3, wherein: one end of the elastic piece (24) far away from the right angle rod (23) is fixedly connected with the top of the positioning support (22), one end of the sliding ball frame (26) far away from the right angle rod (23) is in contact with the surface of the sliding plate (21), and one end of the extrusion plate (25) far away from the right angle rod (23) is in contact with the surface of the fuse (6).
5. The fuse for overcurrent protection according to claim 1, wherein: the inner wall fixedly connected with round bar (30) of protection casing (2), through-hole (31) have been seted up on the surface of round bar (30), the surface sliding connection of round bar (30) has movable frame (39), the bottom fixedly connected with elastic expansion link (41) of movable frame (39), the bottom fixedly connected with atress bullet frame (43) of elastic expansion link (41), the one end fixedly connected with semicircle cover (42) of elastic expansion link (41) is kept away from to atress bullet frame (43), the surface fixedly connected with interlock pole (40) of movable frame (39).
6. The fuse for overcurrent protection of claim 5, wherein: one end of the rubber pad (37) far away from the ejector rod (36) is in contact with the surface of the fuse (6), one end of the linkage rod (40) far away from the moving frame (39) is fixedly connected with the surface of the cylindrical rod (38), and the positioning cylinder (35) is positioned in the center of the surface of the cylindrical rod (38).
7. The fuse for overcurrent protection of claim 5, wherein: the surface of round bar (30) is provided with two movable frames (39), two movable frames (39) are symmetrical with round bar (30) as the center, the inner wall of semicircle cover (42) contacts with the surface of cable (5), the bottom of interlock pole (40) contacts with the top of right angle pole (23), through-hole (31) are located the center department of round bar (30).
8. The fuse for overcurrent protection according to claim 1, wherein: the safety component (10) comprises a top frame (50), wherein the bottom of the top frame (50) is fixedly connected with the top of the movable frame (39), one end, far away from the movable frame (39), of the top frame (50) is hinged with a tripod (51), the inner wall of the tripod (51) is fixedly connected with a vertical frame (52), the bottom of the vertical frame (52) is fixedly connected with a contact plate (53), and the top of the contact plate (53) is fixedly connected with a safety frame (56);
The bottom of contact plate (53) fixedly connected with mount (54), the bottom of mount (54) fixedly connected with trapezoidal piece (55).
9. The fuse for overcurrent protection of claim 8, wherein: the surface of tripod (51) and the inner wall contact of through-hole (31), the bottom of contact plate (53) and the top contact of cable (5), trapezoidal piece (55) set up the below of cable (5), the center of tripod (51) is articulated the setting, the tip and the inner wall contact of protection casing (2) of safety frame (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410441785.XA CN118039429B (en) | 2024-04-12 | 2024-04-12 | Fuse for over-current protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410441785.XA CN118039429B (en) | 2024-04-12 | 2024-04-12 | Fuse for over-current protection |
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| Publication Number | Publication Date |
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| CN118039429A true CN118039429A (en) | 2024-05-14 |
| CN118039429B CN118039429B (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410441785.XA Active CN118039429B (en) | 2024-04-12 | 2024-04-12 | Fuse for over-current protection |
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Citations (6)
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| CN209880529U (en) * | 2019-04-08 | 2019-12-31 | 浙江谷元电力科技有限公司 | Fuse protector |
| CN111740316A (en) * | 2020-07-10 | 2020-10-02 | 李翠霞 | Automatic device of changing of block terminal sealed fuse-element |
| CN112735929A (en) * | 2021-01-27 | 2021-04-30 | 史振军 | High-voltage fuse for oil field power transmission and transformation |
| CN213519847U (en) * | 2020-12-25 | 2021-06-22 | 武汉智昊科技有限公司 | Fuse installation fixing device based on RF wireless communication |
| CN218471863U (en) * | 2022-09-03 | 2023-02-10 | 智电云维(北京)智能科技有限公司 | Back-up protection device for frame type circuit breaker |
| CN116313680A (en) * | 2023-03-02 | 2023-06-23 | 谢正浩 | High-safety fuse for power protection |
-
2024
- 2024-04-12 CN CN202410441785.XA patent/CN118039429B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209880529U (en) * | 2019-04-08 | 2019-12-31 | 浙江谷元电力科技有限公司 | Fuse protector |
| CN111740316A (en) * | 2020-07-10 | 2020-10-02 | 李翠霞 | Automatic device of changing of block terminal sealed fuse-element |
| CN213519847U (en) * | 2020-12-25 | 2021-06-22 | 武汉智昊科技有限公司 | Fuse installation fixing device based on RF wireless communication |
| CN112735929A (en) * | 2021-01-27 | 2021-04-30 | 史振军 | High-voltage fuse for oil field power transmission and transformation |
| CN218471863U (en) * | 2022-09-03 | 2023-02-10 | 智电云维(北京)智能科技有限公司 | Back-up protection device for frame type circuit breaker |
| CN116313680A (en) * | 2023-03-02 | 2023-06-23 | 谢正浩 | High-safety fuse for power protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118039429B (en) | 2024-06-28 |
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