CN213781982U - Indicating device and fuse formula isolator of fuse - Google Patents
Indicating device and fuse formula isolator of fuse Download PDFInfo
- Publication number
- CN213781982U CN213781982U CN202120150416.7U CN202120150416U CN213781982U CN 213781982 U CN213781982 U CN 213781982U CN 202120150416 U CN202120150416 U CN 202120150416U CN 213781982 U CN213781982 U CN 213781982U
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- 239000002184 metal Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 14
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The utility model provides an indicating device and fuse formula isolator of fuse, including fusible core seat, circuit board subassembly, metal shrapnel and lamp lid, the fusible core seat has the fusible core that sets up under, and the shaping is suitable for in and installs in metal shrapnel's second slot to and the first slot of shaping on. During assembly, the circuit board is vertically inserted into the first slot, and then the metal elastic sheet is inserted into the second slot, so that the assembly is rapid and convenient, and the fusible core holder is integrally formed with the first slot and the second slot, so that the fusible core holder has the advantage of simple structure; the positioning plate and the elastic pressing plate are arranged on two sides of the circuit board in the width direction, and the elastic pressing plate and the circuit board are elastically pressed, so that the circuit board and the fusible core holder are more firmly installed, and the reliability is improved; in addition, the lamp lid is when the assembly, and the lamp pole passes the perforation back from the fusible core seat outside, and the second dog on the lamp pole outer wall offsets in fenestrate diapire to prevent that the lamp lid from separating with the fusible core seat, the assembly is swift convenient like this, has improved assembly efficiency.
Description
Technical Field
The utility model relates to a fuse technical field, concretely relates to indicating device and fuse formula isolator of fuse.
Background
The fuse is widely applied to high and low voltage distribution systems, control systems and electric equipment, and is one of the most commonly applied protection devices as a short circuit and overcurrent protector.
The existing fuse indicating device comprises a circuit board seat and a circuit board assembly arranged on the circuit board seat, the circuit board assembly comprises a circuit board and an indicating lamp arranged on the circuit board, the indicating lamp can shine when a fuse wire is fused, and a user can visually judge whether the fuse wire is fused or not by observing the state of the indicating lamp. During assembly, the circuit board assembly is assembled on the circuit board seat, and then the circuit board seat is installed on the fusible core seat with the fusible core, so that the assembly process is more complicated, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the fuse indicating device among the prior art and having the defect that the structure is complicated, assembly process is loaded down with trivial details to a simple structure, the swift convenient fuse's of assembly indicating device and fuse formula isolator are provided.
Therefore, the utility model provides an indicating device of fuse, including fusible core seat, circuit board subassembly, metal shrapnel and lamp lid, fusible core seat has the fusible core that sets up down, the second slot that is suitable for installing in metal shrapnel of shaping in and the first slot that is suitable for installing circuit board subassembly of shaping on, the extending direction of first slot and the second slot is perpendicular to the bottom plate setting of fusible core seat; the circuit board assembly is provided with a circuit board which is in adaptive plug connection with the first slot, and at least one LED lamp and a current-limiting resistor which are arranged on the circuit board, and a positioning plate and at least one elastic pressing plate which are perpendicular to the bottom plate are respectively arranged on two sides of the circuit board in the width direction; the two metal elastic sheets are arranged between the circuit board assembly and the fusible core and respectively and correspondingly connected with two ends of the circuit board assembly and the fusible core; the lamp cover is arranged at the top of the fuse holder and comprises a lamp cover main body and a lamp post arranged at the bottom of the lamp cover main body, the lamp cover main body is arranged in a second mounting groove at the top of the fuse holder, the lamp post penetrates through a through hole at the bottom of the second mounting groove and extends to the upper part of the LED lamp, and a second stop block which can abut against the through hole bottom wall to prevent the lamp cover from being separated from the fuse holder is formed on the outer wall of the lamp post.
The elastic pressing plate is of an inverted U-shaped structure, and the inverted U-shaped elastic pressing plate comprises a first connecting plate connected with the bottom plate and a second connecting plate extending to abut against the circuit board.
Elastic pressing plate with be equipped with location structure between the circuit board, location structure includes: the positioning hole is arranged on the circuit board; and the positioning block is arranged at the bottom of the second connecting plate and can be in positioning connection with the positioning hole.
The metal elastic sheet comprises an elastic sheet main body, and a first elastic arm and a second elastic arm which are respectively arranged on the upper side and the lower side of the elastic sheet main body and can be elastically pressed and connected with the circuit board and the fusible core correspondingly.
The fuse core seat is formed with a first stop block which is arranged at the opening of the second slot and can be abutted against the top of the elastic sheet main body.
The circuit board is provided with three current-limiting resistors and two LED lamps which are arranged in parallel and have opposite polarities.
The utility model also provides a fuse formula isolator, including the switch body, and install in as above on the switch body the indicating device of fuse.
The fuse core seat is rotatably arranged on the switch body, is provided with a brake opening position and a brake closing position, and further comprises a lead sealing structure used for locking the fuse core seat at the brake closing position, wherein the lead sealing structure comprises: the two lead sealing holes are respectively and correspondingly arranged on the two side plates of the switch body; the lead sealing groove is arranged between the two lead sealing holes; and the lead seal locks the fusible core holder at the switch-on position after penetrating through the two lead seal holes and the lead seal groove.
And the top surface of the fusible core seat is also provided with a third slot for placing a label for switch use.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an indicating device of fuse, including fusible core seat, circuit board subassembly, metal shrapnel and lamp lid, the fusible core seat has the fusible core that sets up under, and the shaping is suitable for in the second slot of installing in metal shrapnel to and the shaping is suitable for the first slot of installing circuit board subassembly on, the extending direction perpendicular to fusible core seat's of first slot and second slot bottom plate setting. During assembly, the circuit board is vertically inserted into the first slot, and then the metal elastic sheet is inserted into the second slot, so that the assembly is rapid and convenient, and the fusible core holder is integrally formed with the first mounting groove, the first slot and the second slot, so that the fusible core holder has the advantage of simple structure; the two sides of the circuit board in the width direction are respectively provided with a positioning plate and at least one elastic pressing plate which are perpendicular to the bottom plate, and the elastic pressing plates and the circuit board are kept in elastic compression joint, so that the circuit board and the fusible core holder are more firmly installed, and the reliability is improved; in addition, the lamp lid is when the assembly, and the lamp pole of lamp lid passes its perforation back from the fusible core seat outside, and the second dog on the lamp pole outer wall offsets in fenestrate diapire to prevent that the lamp lid from separating with the fusible core seat, the assembly is swift convenient like this, has improved assembly efficiency.
2. The utility model provides an indicating device of fuse, elastic pressing plate are the structure of falling the U-shaped, and the elastic pressing plate of falling the U-shaped includes the first connecting plate that links to each other with the bottom plate to and extend to the second connecting plate that offsets with the circuit board. The inverted U-shaped elastic pressing plate has larger elasticity, so that the circuit board and the fusible core holder are ensured to be firmly installed.
3. The utility model provides an indicating device of fuse is equipped with location structure between elastic pressing plate and the circuit board, and location structure includes: the positioning hole is arranged on the circuit board; the positioning block is arranged at the bottom of the second connecting plate and can be connected with the positioning hole in a positioning mode. Through setting up locating piece and locating hole to prevent circuit board and fusible core seat separation, guarantee circuit board and metal shrapnel effective contact.
4. The utility model provides an indicating device of fuse has three current-limiting resistance on the circuit board to and two are parallelly connected setting, and polarity opposite's LED lamp, circuit board subassembly need not just distinguish positive negative pole when the installation like this, as long as establish ties circuit board subassembly in the circuit, always has the positive negative pole direction of a LED lamp to be right, installs more swiftly convenient like this.
5. The utility model provides a fuse type isolator, lead seal pass two switch bodies the lead seal hole and fuse core holder lead seal groove after, with fuse core holder lock in the closing position, also must destroy earlier and demolish the lead seal, just can operate fuse core holder, prevent like this that people from opening fuse core holder privately.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fuse type disconnecting switch of the present invention;
FIG. 2 is a perspective view of an indicating device of the fuse;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a first cross-sectional view of FIG. 3;
FIG. 5 is a second cross-sectional view of FIG. 3;
FIG. 6 is a schematic view of a fuse holder;
FIG. 7 is a schematic circuit diagram of a circuit board assembly;
fig. 8 is a perspective view of a fused disconnect switch.
Description of reference numerals: 1. a fusible core holder; 10. a base plate; 11. a first mounting groove; 12. a first slot; 13. positioning a plate; 14. an elastic pressure plate; 141. a first connecting plate; 142. a second connecting plate; 143. positioning blocks; 15. a second slot; 16. a first stopper; 17. a second mounting groove; 18. perforating; 2. a fusible core; 3. a circuit board; 31. an LED lamp; 32. a current limiting resistor; 33. positioning holes; 4. a metal spring sheet; 40. a spring plate main body; 41. a first resilient arm; 42. a second resilient arm; 5. a lamp cover; 51. a lamp cap body; 52. a lamp post; 53. a second stopper; 6. a switch body; 61. sealing the lead hole; 7. lead sealing the groove; 8. and a third slot.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Examples
The present embodiment provides a fuse type disconnecting switch, as shown in fig. 1 and 8, which includes a switch body 6, and an indicating device of a fuse disposed on the switch body 6, as shown in fig. 2 and 3, the indicating device includes a fuse holder 1, a circuit board assembly, a metal dome 4, and a lamp cover 5.
The switch body 6 is correspondingly provided with lead sealing holes 61 on two side plates.
The fuse core holder 1 is rotatably arranged on the switch body 6 and is provided with a switching-off position and a switching-on position, as shown in fig. 6, the fuse core holder 1 is provided with a first mounting groove 11 formed below and suitable for mounting the fuse core 2, a second slot 15 formed in the first mounting groove and suitable for mounting the metal elastic sheet 4, and a first slot 12 formed above and suitable for mounting a circuit board assembly, and the extending directions of the first slot 12 and the second slot 15 are perpendicular to the bottom plate 10 of the fuse core holder 1. Two sides of the first slot 12 are provided with a positioning plate 13 and two elastic pressing plates 14, as shown in fig. 4, the elastic pressing plates 14 are in an inverted U-shaped structure, the inverted U-shaped elastic pressing plates 14 include a first connecting plate 141 connected to the bottom plate 10 and a second connecting plate 142 extending to abut against the circuit board 3, and a positioning block 143 is disposed at the bottom of the second connecting plate 142. The fusible core holder 1 is formed with a second slot 15 for inserting the metal elastic sheet 4, and a first stop block 16 which is arranged at the opening of the second slot 15 and can be abutted against the top of the elastic sheet main body 40. The top surface of the fuse holder 1 is also provided with a lead seal groove 7 and a third slot 8, the lead seal groove 7 is arranged between the two lead seal holes 61, and after lead seal penetrates through the two lead seal holes 61 and the lead seal groove 7, the fuse holder 1 is locked at the switch-on position; the third slot 8 is used for placing a switch purpose mark.
The circuit board assembly, as shown in fig. 7, has a circuit board 3 adapted to the first slot 12, and two LED lamps 31 and three current limiting resistors 32 disposed on the circuit board 3, where the two LED lamps 31 are disposed side by side and have opposite polarities. The circuit board 3 is formed with a positioning hole 33 adapted to the positioning block 143, and two sides of the circuit board 3 in the length direction are provided with conductive solder pins elastically pressed with the metal spring 4.
The two metal elastic sheets 4 are arranged between the circuit board assembly and the fusible core 2 and are respectively and correspondingly connected with two ends of the circuit board assembly and the fusible core 2, as shown in fig. 3, each metal elastic sheet 4 comprises an elastic sheet main body 40 and a first elastic arm 41 and a second elastic arm 42 which are respectively arranged on the upper side and the lower side of the elastic sheet main body 40 and can be elastically pressed and connected with the circuit board 3 and the fusible core 2 correspondingly.
A lamp cover 5, disposed on top of the fuse holder 1, as shown in fig. 2 and 5, including: the lamp cover main body 51 is arranged in the second mounting groove 17 at the top of the fusible core holder 1; the lamp post 52 is arranged at the bottom of the lamp cover main body 51, the lamp post 52 passes through the through hole 18 at the bottom of the second mounting groove 17 and then extends to the upper part of the LED lamp 31, a second stop 53 which can abut against the bottom wall of the through hole 18 to prevent the lamp cover 5 from being separated from the fuse holder 1 is formed on the outer wall of the lamp post 52, and the cross section of the second stop 53 is triangular.
The utility model provides an indicating device of fuse, including fusible core seat 1, circuit board subassembly and two metal shrapnel 4, fusible core seat 1 has the shaping first mounting groove 11 that is suitable for installation fusible core 2 under, and the shaping is suitable for in second slot 15 of installing in metal shrapnel 4 to and the shaping is suitable for the first slot 12 of installing circuit board subassembly on, first slot 12 with the bottom plate 10 setting of extension direction perpendicular to fusible core seat 1 of second slot 15. During the assembly, insert first slot 12 along vertical with circuit board 3 earlier, insert second slot 15 with metal shrapnel 4 in, the assembly is swift convenient like this, and because fusible core seat 1 integrated into one piece has first mounting groove 11, first slot 12 and second slot 15, has simple structure's advantage like this.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. An indicating device for a fuse, comprising:
the fuse core seat (1) is provided with a fuse core (2) arranged below, a second slot (15) formed in the fuse core seat and suitable for being installed on a metal elastic sheet (4), and a first slot (12) formed on the fuse core seat and suitable for being installed on a circuit board assembly, the extending directions of the first slot (12) and the second slot (15) are perpendicular to a bottom plate (10) of the fuse core seat (1) and the bottom plate (10) is provided with a positioning plate (13) and at least one elastic pressing plate (14) which are respectively arranged on two sides of the width direction of the circuit board (3);
the circuit board assembly is provided with a circuit board (3) which is in adaptive plug connection with the first slot (12), and at least one LED lamp (31) and a current limiting resistor (32) which are arranged on the circuit board (3);
the two metal elastic sheets (4) are arranged between the circuit board assembly and the fusible core (2) and are respectively and correspondingly connected with the two ends of the circuit board assembly and the fusible core (2);
the lamp cover (5) is arranged at the top of the fuse holder (1) and comprises a lamp cover main body (51) and a lamp post (52) arranged at the bottom of the lamp cover main body (51), the lamp cover main body (51) is arranged in a second mounting groove (17) at the top of the fuse holder (1), the lamp post (52) passes through a through hole (18) at the bottom of the second mounting groove (17) and then extends to the upper part of the LED lamp (31), and a second stop block (53) which can abut against the bottom wall of the through hole (18) to prevent the lamp cover (5) and the fuse holder (1) from being separated is formed on the outer wall of the lamp post (52).
2. A device for indicating a fuse as claimed in claim 1, characterised in that said elastic pressure plate (14) is of inverted U-shaped configuration, said elastic pressure plate (14) of inverted U-shape comprising a first connecting plate (141) associated with said base plate (10) and a second connecting plate (142) extending against said circuit board (3).
3. A fuse indicating device according to claim 2, characterised in that a positioning structure is provided between the resilient pressure plate (14) and the circuit board (3), the positioning structure comprising:
a positioning hole (33) provided in the circuit board (3);
and the positioning block (143) is arranged at the bottom of the second connecting plate (142) and can be connected with the positioning hole (33) in a positioning mode.
4. A fuse indicator according to any one of claims 1 to 3, characterised in that the metal dome (4) comprises a dome body (40) and first (41) and second (42) resilient arms respectively provided on the upper and lower sides of the dome body (40) and adapted to be resiliently pressed against the circuit board (3) and the fusible core (2).
5. A fuse indicator according to claim 4, in which the fuse holder (1) is formed with a first stop (16) at the opening of the second slot (15) against the top of the body (40).
6. A fuse indicator device according to any one of claims 1, 2, 3 and 5, characterised in that the circuit board (3) has three current limiting resistors (32) and two LED lamps (31) of opposite polarity arranged in parallel.
7. A fused disconnector comprising a switch body (6) and indicating means of the fuse as claimed in any one of claims 1 to 6 mounted on the switch body (6).
8. A fused disconnect switch as defined in claim 7 wherein the fuse holder (1) is rotatably mounted on the switch body (6) and has an open position and a closed position, and further including a lead seal for locking the fuse holder (1) in the closed position, the lead seal comprising:
the two lead sealing holes (61) are respectively and correspondingly arranged on the two side plates of the switch body (6);
the lead sealing groove (7) is arranged between the two lead sealing holes (61);
and lead sealing, which locks the fuse holder (1) at the switching-on position after penetrating through the two lead sealing holes (61) and the lead sealing groove (7).
9. A fused disconnector according to claim 8, characterized in that the top surface of the core print (1) is further provided with a third slot (8) for placing a switch application tag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120150416.7U CN213781982U (en) | 2021-01-19 | 2021-01-19 | Indicating device and fuse formula isolator of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120150416.7U CN213781982U (en) | 2021-01-19 | 2021-01-19 | Indicating device and fuse formula isolator of fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213781982U true CN213781982U (en) | 2021-07-23 |
Family
ID=76901900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120150416.7U Active CN213781982U (en) | 2021-01-19 | 2021-01-19 | Indicating device and fuse formula isolator of fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213781982U (en) |
-
2021
- 2021-01-19 CN CN202120150416.7U patent/CN213781982U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 325600, No. 66 Punan Fifth Road, Leqing Economic Development Zone, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Jinlaile Electric Co.,Ltd. Country or region after: China Address before: No.246, Weishi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG GRL ELECTRIC CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |