CN108597971B - Switch type fuse - Google Patents
Switch type fuse Download PDFInfo
- Publication number
- CN108597971B CN108597971B CN201810197175.4A CN201810197175A CN108597971B CN 108597971 B CN108597971 B CN 108597971B CN 201810197175 A CN201810197175 A CN 201810197175A CN 108597971 B CN108597971 B CN 108597971B
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- China
- Prior art keywords
- fuse
- link
- shell
- connecting block
- casing
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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
- H01H85/22—Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing 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
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
- H01H85/32—Indicating lamp structurally associated with the protective device
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- Fuses (AREA)
Abstract
The invention discloses a switch type fuse which has the advantage that two ends of a fuse link are contacted more stably. The utility model provides a switch type fuse, includes the casing and is located two electrical connection component at casing both ends, the mid-mounting of casing has the mount pad of being connected with the casing rotation, install the fuse-link in the mount pad, when the mount pad lock is on the casing, the both ends of fuse-link to each other with two electrical connection component respectively. When the mounting seat is buckled on the shell, two ends of the fuse link are respectively connected with the two electric connection assemblies, and the two electric connection assemblies are in a conduction state. When the fuse link is fused, the two electric connection assemblies are in an open circuit state, and the fuse link can be conveniently replaced by outwards turning the mounting seat. Meanwhile, the fuse link is fixed in the shell in a mode of buckling the mounting seat, and compared with threaded connection, the fuse link is more stable.
Description
Technical Field
The invention relates to a fuse, in particular to a switch type fuse.
Background
The utility model patent with the publication number of CN2044381U discloses a wire holder with fuse and fusing display. The fuse is matched with and presses the fuse link fixedly through the rotary connection of the fuse knob and the box body, so that two ends of the fuse link are in a communicated state.
However, the utility model has the following problems: when the fuse knob is loosened, both ends of the fuse link are likely to be in poor contact.
Disclosure of Invention
It is an object of the present invention to provide a switching fuse which has the advantage that the contact at both ends of the fuse link is more stable.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a switch type fuse, includes the casing and is located two electrical connection component at casing both ends, the mid-mounting of casing has the mount pad of being connected with the casing rotation, install the fuse-link in the mount pad, when the mount pad lock is on the casing, the both ends of fuse-link to each other with two electrical connection component respectively.
Through adopting above-mentioned technical scheme, when the mount pad lock was on the casing, the both ends of fuse-link were continuous with two electric connection component respectively, and two electric connection component are in the on-state. When the fuse link is fused, the two electric connection assemblies are in an open circuit state, and the fuse link can be conveniently replaced by outwards turning the mounting seat. Meanwhile, the fuse link is fixed in the shell in a mode of buckling the mounting seat, and compared with threaded connection, the fuse link is more stable.
The invention is further configured to: an indicating device connected with the fuse link in parallel is arranged between the two electric connection assemblies; when the fuse link is intact, the indicating device does not work, and the two electric connection assemblies are conducted; when the fuse link is fused, the indicating device works, and the two electric connection components are disconnected.
By adopting the technical scheme, when the fuse link is intact, the indicating device does not work, and the two electric connection assemblies are conducted; when the fuse link fuses, indicating device works, opens circuit between two electrical connection component for indicating device can indicate the fuse that needs to change the fuse link, and two electrical connection component can not switch on when the fuse link fuses simultaneously.
The invention is further configured to: the indicating device is a neon lamp.
By adopting the technical scheme, the neon lamp connected with the fuse link in parallel can emit light when the fuse link is fused, thereby playing an indicating role.
The invention is further configured to: the electric connection assembly comprises an outer connection frame and a connection plate connected to the outer connection frame, the connection plate is located in the direction of the outer connection frame towards the middle of the shell, each elastic sheet is connected to two sides of the connection plate, which are far away from one end of the outer connection frame, and the two elastic sheets of the same connection plate extend towards the same side.
Through adopting above-mentioned technical scheme, set up the shell fragment and pass through the connecting plate and link to each other with outer joint frame, when two outer joint frames and electric wire intercommunication, the shell fragment also communicates with it together. The mode that both sides shell fragment presss from both sides tightly makes the fuse enter into the casing when can with the shell fragment between the stable contact.
The invention is further configured to: each outer connecting frame is in threaded connection with one fastening bolt in the direction of the same side of the elastic sheet, and an operation hole is formed in the shell corresponding to the fastening bolt.
Through adopting above-mentioned technical scheme, set up fastening bolt and be used for connecting outside electric wire, the handle hole then is convenient for screw or loosen fastening bolt.
The invention is further configured to: the position shaping that is located the perforation inboard on the casing has the mounting bracket, it has the mounting groove of shape and link plate adaptation to open on the mounting bracket.
Through adopting above-mentioned technical scheme, install through the mounting groove with the connecting plate adaptation and place electric connection subassembly.
The invention is further configured to: the electric connection assembly further comprises a T-shaped elastic pressing rod, and the elastic pressing rod is buckled on the outer sides of the two elastic sheets to drive the two elastic sheets to be pressed towards one opposite side.
Through adopting above-mentioned technical scheme, extrude two shell fragments to the middle part through the elasticity depression bar for it is more stable to be connected between shell fragment and the fuse-link.
The invention is further configured to: the mount pad includes instruction portion and fusing portion, the shaping of fusing portion has the slot that is used for inserting the fuse-link, the degree of depth of slot is littleer than the length of fuse-link, and the both sides of slot bottom are opened there is the through-hole to be linked together with the outside.
Through adopting above-mentioned technical scheme, when the fuse-link was installed in the slot, both ends all can expose for two electrical connection component's shell fragment can the lock respectively and compress tightly at the both ends of fuse-link, makes the both ends of fuse-link to each other with two electrical connection component respectively.
The invention is further configured to: the casing shaping of mount pad one side dorsad has last connecting block and lower connecting block, the inboard shaping of upper connecting block face downward connecting block one end has last joint groove, the inboard shaping that the connecting block face upward connecting block one end down has lower joint groove, the shaping has the inner chamber that is linked together with joint groove down in the connecting block down, install the extrusion spring of one end towards lower joint groove direction in the inner chamber.
Through adopting above-mentioned technical scheme, extrude spring and the last lateral wall butt of inner chamber under natural state, the extrusion spring can not break away from the inner chamber. When installing the fuse on the support with the casing through last joint groove and joint groove cooperation down, the extrusion spring is compressed the cooperation and compresses tightly the support for the difficult displacement that takes place of casing.
In conclusion, the beneficial effects of the invention are as follows:
1. when the mounting seat is buckled on the shell, two ends of the fuse link are respectively connected with the two electric connection assemblies, the two electric connection assemblies are in a conducting state, when the fuse link is fused, the two electric connection assemblies are in an open circuit state, the fuse link can be conveniently replaced by outwards turning the mounting seat, and meanwhile, the fuse link is fixed in the shell in a buckling mode of the mounting seat, so compared with a threaded connection, the fuse link is more stable;
2. when the fuse link is intact, the neon lamp does not work, and the two electric connection assemblies are conducted; when the fuse link is fused, the neon lamp works, and the two electric connection assemblies are disconnected, so that the neon lamp can indicate that the fuse link of the fuse link needs to be replaced, and the two electric connection assemblies cannot be switched on when the fuse link is fused.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
fig. 2 is a schematic structural view of the mount in the embodiment.
Reference numerals: 1. a housing; 2. an electrical connection assembly; 3. a mounting seat; 4. a fuse link; 5. an outer connecting frame; 6. a connecting plate; 7. a spring plate; 8. perforating; 9. fastening a bolt; 10. an operation hole; 11. a mounting frame; 12. mounting grooves; 13. an elastic pressure lever; 14. an avoidance groove; 15. an indicating section; 16. a fusing portion; 17. a slot; 18. a through hole; 19. a neon lamp; 20. a resilient metal sheet; 21. an upper connecting block; 22. a lower connecting block; 23. an upper clamping groove; 24. a lower clamping groove; 25. an inner cavity; 26. compressing the spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a switch type fuse includes a housing 1 and two electrical connection assemblies 2 located at two ends of the housing 1, a mounting base 3 rotatably connected with the housing 1 is installed in the middle of the housing 1, and a fuse link 4 is installed in the mounting base 3. When the mounting base 3 is buckled on the shell 1, two ends of the fuse link 4 are respectively connected with the two electric connection components 2.
As shown in fig. 1, the electrical connection assembly 2 includes an outer connection frame 5 and a connection plate 6 connected to the outer connection frame 5, wherein the connection plate 6 is located in a direction of the outer connection frame 5 toward the middle of the housing 1. Two sides of one end, far away from the outer connecting frame 5, of each connecting plate 6 are respectively connected with one elastic sheet 7, and the two elastic sheets 7 of the same connecting plate 6 extend towards the same side. The upper end and the lower end of the shell 1 are provided with through holes 8 at positions opposite to the two outer connecting frames 5, and external wires can be inserted into the shell 1 through the through holes 8. Each outer connecting frame 5 is connected with a fastening bolt 9 in a threaded manner in the direction of the same side with the elastic sheet 7, an operation hole 10 is formed in the position, corresponding to the fastening bolt 9, of the shell 1, and the fastening bolt 9 can be conveniently unscrewed or screwed through the operation hole 10.
As shown in fig. 1, a mounting bracket 11 is formed at a position inside the through hole 8 on the housing 1, a mounting groove 12 having a shape matched with the connecting plate 6 is formed on the mounting bracket 11, and the electrical connection component 2 is mounted in the housing 1 through the connecting plate 6 and the mounting groove 12. The T-shaped elastic pressing rod 13 is buckled on the outer sides of the two elastic sheets 7 in a semi-surrounding state, the two elastic sheets 7 are driven to be pressed towards one opposite side through the elastic pressing rod 13, and an avoiding groove 14 for avoiding the elastic pressing rod 13 is formed in the position, matched with the elastic pressing rod 13, on the side wall of the mounting groove 12.
As shown in fig. 1 and 2, the mounting seat 3 includes an indicating portion 15 and a fusing portion 16, the fusing portion 16 is formed with a slot 17 for inserting the fuse link 4, the depth of the slot 17 is smaller than the length of the fuse link 4, and both sides of the bottom of the slot 17 are opened with through holes 18 communicating with the outside. When the fuse-link 4 is installed in the slot 17, both ends can be exposed, so that the elastic sheets 7 of the two electric connection components 2 can be respectively buckled and pressed at both ends of the fuse-link 4, and both ends of the fuse-link 4 are respectively connected with the two electric connection components 2.
As shown in fig. 1 and 2, a neon lamp 19 is installed in the indication part 15, two elastic metal pieces 20 connected to the positive and negative electrodes of the neon lamp 19 are installed on the side of the indication part 15 facing the fusing part 16, and the elastic metal pieces 20 are inclined outward in a natural state. After the fuse is inserted into the fusing part 16, the positive and negative electrode interfaces of the neon lamp 19 are connected to both ends of the fuse link 4 installed in the fusing part 16 through the elastic metal pieces 20, respectively.
As shown in fig. 1 and 2, casing 1 has last connecting block 21 and lower connecting block 22 in the shaping of 3 one side of mount pad dorsad, and the inboard shaping of going up connecting block 21 face lower connecting block 22 one end has last joint groove 23, and lower connecting block 22 faces the inboard shaping of face connecting block 21 one end and has lower joint groove 24, and the shaping has the inner chamber 25 that is linked together with lower joint groove 24 in the lower connecting block 22, installs the extrusion spring 26 of one end towards lower joint groove 24 direction in the inner chamber 25. Extrusion spring 26 and the last lateral wall butt of inner chamber 25 under natural state, when installing the fuse on the support with casing 1 through last joint groove 23 and the cooperation of lower joint groove 24, extrusion spring 26 is compressed tightly the support by compression fit for casing 1 is difficult for taking place the displacement.
The specific using process is as follows: when the fuse is normally used, the two electric connection assemblies 2 are conducted through the fuse link 4; in case of overload, the fuse link 4 is broken, at this time, a neon lamp 19 with high resistance is connected in series between the two electrical connection assemblies 2, at this time, the neon lamp 19 is lighted to indicate maintenance, and the two electrical connection assemblies 2 are in a broken state. The maintenance personnel can conveniently replace the fuse-link 4 by opening the mounting seat 3.
The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (4)
1. A switch mode fuse, includes casing (1) and is located two electrical connection component (2) at casing (1) inside both ends, characterized by: the middle part of the shell (1) is provided with an installation seat (3) which is rotationally connected with the shell (1), a fuse link (4) is installed in the installation seat (3), and when the installation seat (3) is buckled on the shell (1), two ends of the fuse link (4) are respectively connected with the two electric connection components (2); the electric connection assembly (2) comprises an outer connection frame (5) and a connection plate (6) connected to the outer connection frame (5), the connection plate (6) is located in the direction of the outer connection frame (5) towards the middle of the shell (1), two sides of one end, away from the outer connection frame (5), of each connection plate (6) are respectively connected with one elastic sheet (7), and the two elastic sheets (7) of the same connection plate (6) extend towards the same side; the electric connection assembly (2) further comprises a T-shaped elastic pressure rod (13), and the elastic pressure rod (13) is buckled on the outer sides of the two elastic sheets (7) to drive the two elastic sheets (7) to be pressed towards one opposite side; the mounting seat (3) comprises an indicating part (15) and a fusing part (16), wherein a slot (17) for inserting the fusing body (4) is formed in the fusing part (16), the depth of the slot (17) is smaller than the length of the fusing body (4), and through holes (18) communicated with the outside are formed in two sides of the bottom of the slot (17); install neon lamp (19) in instruction portion (15), instruction portion (15) are installed towards one side of fuse portion (16) two respectively with neon lamp (19) positive and negative elastic metal piece (20) continuous, elastic metal piece (20) lean out under natural state, after fuse-link (4) insert fuse-link (16), make the positive and negative interface of neon lamp (19) link to each other with the both ends of installing fuse-link (4) in fuse-link (16) respectively through elastic metal piece (20).
2. A switched fuse as claimed in claim 1, wherein: each outer connecting frame (5) is connected with a fastening bolt (9) in a threaded manner in the direction of the same side with the elastic sheet (7), and an operation hole (10) is formed in the position, corresponding to the fastening bolt (9), on the shell (1).
3. A switch-mode fuse as recited in claim 2, wherein: the shell (1) is provided with an installation frame (11) at the inner side of the through hole (8), and the installation frame (11) is provided with an installation groove (12) with the shape matched with that of the connecting plate (6).
4. A switched fuse as claimed in claim 1, wherein: casing (1) mount pad (3) one side shaping dorsad has last connecting block (21) and lower connecting block (22), it has last joint groove (23) to go up the inboard shaping of connecting block (21) face connecting block (22) one end down, connecting block (22) face down the inboard shaping of connecting block (21) one end have joint groove (24) down, down inner chamber (25) that the shaping has and is linked together with joint groove (24) down in connecting block (22), install extrusion spring (26) of one end face down joint groove (24) direction in inner chamber (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197175.4A CN108597971B (en) | 2018-03-10 | 2018-03-10 | Switch type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197175.4A CN108597971B (en) | 2018-03-10 | 2018-03-10 | Switch type fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108597971A CN108597971A (en) | 2018-09-28 |
| CN108597971B true CN108597971B (en) | 2020-10-20 |
Family
ID=63625959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810197175.4A Active CN108597971B (en) | 2018-03-10 | 2018-03-10 | Switch type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108597971B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114899060B (en) * | 2022-05-16 | 2023-06-06 | 保定市博远电气制造有限公司 | Fuse for circuit control |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2076706U (en) * | 1990-09-17 | 1991-05-08 | 薛箭 | Switching fuse |
| CN201374298Y (en) * | 2008-12-24 | 2009-12-30 | 浙江开控电气有限公司 | Plastic shell fuse |
| CN205159271U (en) * | 2015-11-24 | 2016-04-13 | 温州三实电器有限公司 | Indicating device of fuse |
| CN206370397U (en) * | 2017-01-19 | 2017-08-01 | 浙江新力熔断器有限公司 | A kind of photovoltaic fuse |
-
2018
- 2018-03-10 CN CN201810197175.4A patent/CN108597971B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108597971A (en) | 2018-09-28 |
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