CN117912905B - Electrical fireproof current-limiting type protector convenient to maintain - Google Patents
Electrical fireproof current-limiting type protector convenient to maintain Download PDFInfo
- Publication number
- CN117912905B CN117912905B CN202410306485.0A CN202410306485A CN117912905B CN 117912905 B CN117912905 B CN 117912905B CN 202410306485 A CN202410306485 A CN 202410306485A CN 117912905 B CN117912905 B CN 117912905B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- circuit board
- strip
- plates
- middle cover
- 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.)
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- 230000001012 protector Effects 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses an electric fireproof current-limiting protector convenient to maintain, which comprises a base and a main cover plate, wherein an installation cavity for installing a circuit board is formed between the base and the main cover plate, the main cover plate is formed by sequentially splicing a bottom cover plate, a middle cover plate and a top cover plate which are fixedly connected in a detachable mode, the bottom cover plate is connected with the base, one or more middle cover plates are arranged, positioning grooves matched with the circuit board in shape are respectively arranged on the front sides of the bottom cover plate and the middle cover plate, inner baffle plates which extend inwards and are attached to the rear side of the circuit board are arranged in the positioning grooves, and outer baffle plates which extend inwards and are attached to the front side of the circuit board are arranged on the rear sides of the middle cover plate and the top cover plate. Compared with the existing electric fireproof current-limiting protector, the cover plate of the invention can be partially disassembled so as to be convenient for maintenance and detection of the specific circuit board, and the inner baffle and the outer baffle arranged on the cover plate fix the circuit board on the positioning groove, thereby improving the stability of the circuit board.
Description
Technical Field
The invention belongs to the technical field of protectors, and particularly relates to an electric fireproof current-limiting protector convenient to maintain.
Background
The electric fireproof current-limiting protector can effectively overcome the defects of large short-circuit current, long short-circuit current cutting-off time, large arc spark generated during short circuit, short service life and the like of the traditional circuit breaker, the air switch and the monitoring equipment, and can rapidly limit the short-circuit current at microsecond speed to realize arc extinction protection when short-circuit faults occur, so that electric fire accidents can be obviously reduced, and the safety of personnel and property in a use place is ensured.
The current-limiting protector comprises a cover plate and a base, wherein a plurality of layers of circuit boards are arranged on the base, the cover plate and the base are fixedly connected through buckles or threaded fasteners, the cover plate and the base can be separated after the buckles are pried or the threaded fasteners are detached, and the circuit boards are maintained and detected.
However, the current limiting type protector is internally provided with a plurality of layers of circuit boards, and at least the following problems exist in the actual use process: 1. the length of the cover plate is longer, so that the cover plate is inconvenient to detach and mount, the whole cover plate is required to be detached for maintenance and detection of any layer of circuit board, the circuit board which is not required to be subjected to maintenance and detection is exposed, the circuit board is easy to damage, and in addition, the detachment and mount difficulty is increased due to the longer cover plate; 2. the apron only relies on its inside slot-like structure that sets up to cooperate fixedly with the circuit board, and on the one hand, single slot-like structure is relatively poor to the fixed reliability of circuit board, and the circuit board is difficult to keep stable when the apron receives external force impact, on the other hand, has further increased the degree of difficulty of apron dismantlement installation.
Disclosure of Invention
The existing electrical fireproof current-limiting protector has the following problems: the cover plate is inconvenient to disassemble so as to repair the detection circuit board; the circuit board which is not required to be maintained and detected is easy to damage after being disassembled; the cover plate has poor fixing reliability to the circuit board. To solve the above problems, the following inventions have been proposed:
The utility model provides an electric fire prevention current limiting protector convenient to maintenance, includes the base and installs the main apron on the base, is formed with the installation cavity between the two, be equipped with the circuit board of polylith interval in the installation cavity, main apron comprises bottom apron, well apron, the top board of detachable mode looks fixed connection, the bottom board is connected with the base, well apron sets up quantity and is one or more the front side of bottom apron and well apron respectively is equipped with one and circuit board shape matched with constant head tank, be equipped with the internal baffle of inwards extending and laminating in circuit board rear side in the constant head tank, the rear side of well apron and top board all is equipped with the outside baffle of inwards extending and laminating in circuit board front side.
The main cover plate is divided into a bottom cover plate, a middle cover plate and a top cover plate, and the bottom cover plate, the middle cover plate and the top cover plate are detachably connected with each other, the circuit board is arranged in a positioning groove between the three sub cover plates, an outer baffle plate and an inner baffle plate which limit the circuit board to move are respectively arranged on the front side and the rear side of the positioning groove, and even if the main cover plate is impacted by certain external force, the circuit board can still keep a stable state and is more reliable; when a certain circuit board needs to be repaired and detected, only the cover plates before and after the circuit board are detached, compared with the whole cover plate, the circuit board is more convenient and labor-saving, the circuit board which does not need to be maintained can not be exposed to the outside, and the possibility of damage is reduced.
Further, the front sides of the bottom cover plate and the middle cover plate are provided with matching grooves, the rear sides of the middle cover plate and the top cover plate are provided with matching plates, and two adjacent cover plates are matched with each other through the matching grooves and the matching plates to be connected in a splicing mode.
Further, a plurality of fixed plugboards are arranged on the matching board, a plurality of fixed slots for the fixed plugboards to be matched and inserted are arranged in the matching groove, first fixing holes which extend outwards and penetrate through the side wall of the main cover board are arranged on the fixed slots and the fixed plugboards, first fixing pieces for fixedly connecting the fixed plugboards and the fixed slots are connected in the first fixing holes in a threaded mode, and the fixed connection between the corresponding cover boards can be released through the fact that the first fixing pieces at different positions are detached.
Further, the inside extension of interior baffle is equipped with a plurality of laminating in the bar baffle of circuit board rear side, all be equipped with matched with second fixed orifices on circuit board and the bar baffle, the second mounting of fixed connection circuit board and bar baffle has been connect to the interior silk of second fixed orifices, the second mounting has improved the stability of circuit board by fixed in the constant head tank.
Further, the outer baffle plate inwards extends to be provided with a plurality of strip-shaped cover plates attached to the front side of the circuit board, and the strip-shaped cover plates are provided with cover plate grooves matched with the end parts of the second fixing pieces so as to prevent the second fixing pieces from being separated from the circuit board outwards. The strip-shaped baffle is matched with the strip-shaped cover plate, and the circuit board is further prevented from moving in the positioning groove.
Further, a sleeve extending inwards is arranged on the strip-shaped baffle, a second fixing hole is formed in the sleeve, and the second fixing piece is connected in the second fixing hole in a threaded mode.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a split structure of the present invention;
FIG. 3 is a schematic perspective view of a midsole cover plate according to the present invention;
FIG. 4 is a schematic diagram of a combination structure of a middle bottom cover plate and a circuit board according to the present invention;
FIG. 5 is a schematic diagram of a combination structure of a middle cover plate and a circuit board in the invention;
FIG. 6 is a schematic diagram of an explosion structure of a middle cover plate and a circuit board in the invention;
Fig. 7 is a schematic perspective view of a top cover plate according to the present invention.
The correspondence between the reference numerals and the component names in the drawings is as follows:
1. a base; 2. a main cover plate; 3. a bottom cover plate; 4. a middle cover plate; 5. a top cover plate; 11. a circuit board; 12. a sleeve; 31. a mating groove; 32. a fixed slot; 33. a positioning groove; 34. an inner baffle; 35. a strip-shaped baffle; 36. a first fixing hole; 37. a second fixing hole; 38. a first fixing member; 39. a second fixing member; 41. matching plates; 42. fixing the plugboard; 43. an outer baffle; 44. a strip cover plate; 45. and a cover plate groove.
Detailed Description
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
In addition to the above terms may be used to denote orientation or positional relationships, other meanings may be used, such as the term "upper" may also be used in some cases to denote some sort of attachment or connection. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
The technical scheme of the present invention will be clearly and completely described in the following examples.
As shown in fig. 1-2, an electrical fireproof current-limiting protector convenient to maintain comprises a base 1 and a main cover plate 2, wherein an installation cavity is formed between the base 1 and the main cover plate 2, two circuit boards 11 which are spaced apart are arranged in the installation cavity, the main cover plate 2 consists of a bottom cover plate 3, a middle cover plate 4 and a top cover plate 5, the bottom cover plate 3 and the base 1 are respectively provided with a clamping groove and a clamping buckle which are matched with each other so as to be fixedly connected with each other, the top cover plate 5 is also provided with a display screen, and the bottom cover plate 3, the middle cover plate 4 and the top cover plate 5 are detachably and fixedly connected with each other through a first fixing piece 38.
As shown in fig. 3-5, a positioning groove 33 is respectively provided on the front sides of the bottom cover plate 3 and the middle cover plate 4, the two positioning grooves 33 are respectively matched with the shapes of the two circuit boards 11, an inner baffle 34 extending inwards is provided on the inner side of the positioning groove 33, and the inner baffle 34 is pressed against the rear side of the circuit board 11 mounted in the positioning groove 33 to prevent the circuit board 11 from separating from the rear side of the positioning groove 33; as shown in fig. 6 to 7, an outer baffle 43 extending toward the inner side of the cover plate is provided on the rear side of the middle cover plate 4 and the top cover plate 5, and the outer baffle 43 is pressed against the front side of the circuit board 11 to prevent the circuit board 11 from being separated from the front side of the positioning groove 33.
According to the invention, the corresponding circuit board 11 can be maintained and detected only by detaching the first fixing piece 38 between the bottom cover plate 3 and the middle cover plate 4 or between the middle cover plate 4 and the top cover plate 5, compared with the case that the whole main cover plate 2 is detached from the base 1, the efficiency of detaching the circuit board 11 is greatly improved, and the possibility of damaging the unrelated circuit board 11 is effectively reduced. In addition, the circuit board 11 in the invention is arranged in the positioning groove 33, and the front side and the rear side are respectively provided with the outer baffle plate 43 and the inner baffle plate 34 for fixing the circuit board, so that the circuit board 11 can be kept stable even if the main cover plate 2 is impacted by a certain external force, and compared with the traditional electric fireproof current limiting type protector, the invention is more stable and reliable.
In particular, the number of the circuit boards 11 may be three or more, and accordingly, the number of the middle cover boards 4 may be one less than the number of the circuit boards 11, the positioning grooves 33 and the inner baffles 34 may be provided on the front side of each middle cover board 4, the outer baffles 43 may be provided on the rear side of the middle cover board 4, the positioning grooves 33 may be in the shape of the circuit boards 11 to be arranged, and the middle cover boards 4 may be combined with each other to fix the circuit boards 11 inside the positioning grooves 33. With the increase of the number of circuit boards 11 to be arranged, compared with the existing electrical fireproof current-limiting protector, the invention can maintain and detect the single circuit board 11 more conveniently and efficiently.
The front sides of the bottom cover plate 3 and the middle cover plate 4 are provided with a matching groove 31, a fixing slot 32 is arranged in the matching groove 31, the rear sides of the middle cover plate 4 and the top cover plate 5 are respectively provided with a matching plate 41, the matching plates 41 on the middle cover plate 4 are matched with the matching groove 31 on the bottom cover plate 3 in shape, and the matching plates 41 on the top cover plate 5 are matched with the matching groove 31 on the middle cover plate 4 in shape. The matching plate 41 matched with the matching grooves 31 on the bottom cover plate 3 and the middle cover plate 4 in shape, the matching plate 41 is provided with a fixing plugboard 42 extending outwards, the fixing plugboard 42 is inserted and matched inside the fixing slot 32, the fixing slot 32 and the fixing plugboard 42 are provided with a matched first fixing hole 36, the first fixing hole 36 arranged in the fixing slot 32 extends outwards and horizontally penetrates through the bottom cover plate 3 and the middle cover plate 4, and the first fixing piece 38 is connected in the first fixing hole 36 in a threaded manner so as to fixedly connect the bottom cover plate 3 with the middle cover plate 4 or the middle cover plate 4 and the top cover plate 5.
On the basis, in order to further improve the fixing effect on the circuit board 11, the inner baffle 34 is provided with a plurality of strip-shaped baffles 35 which are attached to the rear side of the circuit board 11 in an inward extending manner, the circuit board 11 and the strip-shaped baffles 35 are provided with second fixing holes 37 which are matched, and second fixing pieces 39 which are fixedly connected with the circuit board 11 and the strip-shaped baffles 35 are connected in the second fixing holes 37 in a threaded manner; the outer baffle 43 is provided with a plurality of strip cover plates 44 attached to the front side of the circuit board 11 in an inward extending manner, and the strip cover plates 44 are provided with cover plate grooves 45 matched with the end parts of the second fixing pieces 39. The strip-shaped baffle 35 and the strip-shaped cover plate 44 are attached and pressed on the rear side and the front side of the circuit board 11, so that the stability of fixing the circuit board 11 is improved; the cover slot 45 is automatically separated from the second fixing member 39 after the cover is removed, and then the operator can separate the circuit board 11 from the positioning slot 33 by removing the second fixing member 39.
Further, the strip-shaped baffle 35 is provided with a sleeve 12 extending inwards, the sleeve 12 can be independently arranged or integrally connected with the strip-shaped baffle 35, the sleeve 12 is provided with a second fixing hole 37, the second fixing piece 39 is screwed into the second fixing hole 37, and the length of the second fixing hole 37 can be lengthened through the sleeve 12, so that the stability of fixing the circuit board 11 is improved.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides an electric fire prevention current limiting type protector convenient to maintenance, includes base (1) and installs main apron (2) on base (1), is formed with the installation cavity between the two, be equipped with circuit board (11) that the polylith is spaced apart in the installation cavity, its characterized in that: the main cover plate (2) is formed by sequentially splicing a bottom cover plate (3), a middle cover plate (4) and a top cover plate (5) which are fixedly connected in a detachable mode, the bottom cover plate (3) is connected with the base (1), the number of the middle cover plates (4) is one or more, positioning grooves (33) matched with the shape of the circuit board (11) are respectively formed in the front sides of the bottom cover plate (3) and the middle cover plate (4), inner baffle plates (34) which extend inwards and are attached to the rear side of the circuit board (11) are arranged in the positioning grooves (33), outer baffle plates (43) which extend inwards and are attached to the front side of the circuit board (11) are arranged on the rear sides of the middle cover plate (4) and the top cover plate (5), and the inner baffle plates (34) and the outer baffle plates (43) prevent the circuit board (11) from shaking in the positioning grooves (33); the front sides of the bottom cover plate (3) and the middle cover plate (4) are also provided with a matching groove (31), and the rear sides of the middle cover plate (4) and the top cover plate (5) are provided with matching plates (41) respectively matched with the matching grooves (31) on the bottom cover plate (3) and the middle cover plate (4); be equipped with a plurality of fixed picture peg (42) on cooperation board (41), be equipped with a plurality of fixed slot (32) that supply fixed picture peg (42) cooperation to insert in cooperation groove (31), be equipped with on fixed slot (32) and fixed picture peg (42) towards outside extension and run through first fixed orifices (36) of main apron (2) lateral wall, first fixed orifices (36) internal thread connect have fixed picture peg (42) and fixed first mounting (38) of slot (32).
2. The electrical fire protection current limiting protector of claim 1, wherein: the inner baffle (34) is internally extended to be provided with a plurality of strip-shaped baffles (35) attached to the rear side of the circuit board (11), the circuit board (11) and the strip-shaped baffles (35) are respectively provided with a second fixing hole (37) matched with each other, and second fixing pieces (39) fixedly connected with the circuit board (11) and the strip-shaped baffles (35) are connected in the second fixing holes (37) in a threaded mode.
3. The electrical fire protection current limiting protector of claim 2, wherein: the outer baffle plate (43) is internally provided with a plurality of strip-shaped cover plates (44) which are attached to the front side of the circuit board (11) in an extending mode, and cover plate grooves (45) matched with the end portions of the second fixing pieces (39) are formed in the strip-shaped cover plates (44) so as to prevent the second fixing pieces (39) from being separated from the circuit board (11) outwards.
4. The electrical fire protection current limiting protector of claim 2, wherein: the strip-shaped baffle (35) is provided with a sleeve (12) extending inwards, the sleeve (12) is provided with a second fixing hole (37), and the second fixing piece (39) is connected in the second fixing hole (37) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410306485.0A CN117912905B (en) | 2024-03-18 | 2024-03-18 | Electrical fireproof current-limiting type protector convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410306485.0A CN117912905B (en) | 2024-03-18 | 2024-03-18 | Electrical fireproof current-limiting type protector convenient to maintain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117912905A CN117912905A (en) | 2024-04-19 |
| CN117912905B true CN117912905B (en) | 2024-05-24 |
Family
ID=90692559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410306485.0A Active CN117912905B (en) | 2024-03-18 | 2024-03-18 | Electrical fireproof current-limiting type protector convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117912905B (en) |
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| US4192976A (en) * | 1978-12-29 | 1980-03-11 | Gte Automatic Electric Laboratories Incorporated | Pushbutton call transmitter |
| CN201038480Y (en) * | 2007-02-15 | 2008-03-19 | 黄华道 | Creepage protecting socket |
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| CN212676132U (en) * | 2020-08-31 | 2021-03-09 | 超级智慧家(上海)物联网科技有限公司 | Touch switch |
| CN113889990A (en) * | 2021-09-30 | 2022-01-04 | 浙江云盾电气有限公司 | Large-capacity switch type surge protection device |
| CN113904221A (en) * | 2021-09-26 | 2022-01-07 | 震宇智慧（北京）新能源科技有限公司 | Current-limiting type electrical fireproof protector |
| CN216528674U (en) * | 2021-12-27 | 2022-05-13 | 浙江巨杰电气有限公司 | Under-voltage protector structure |
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| CN218498004U (en) * | 2022-07-27 | 2023-02-17 | 浙江华航电气股份有限公司 | Special automatic reclosing circuit breaker of photovoltaic |
| CN218769321U (en) * | 2022-09-19 | 2023-03-28 | 上海正泰智能科技有限公司 | Circuit breaker |
| CN116137214A (en) * | 2023-03-22 | 2023-05-19 | 上海正泰智能科技有限公司 | Circuit breaker |
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| CN220440368U (en) * | 2023-07-31 | 2024-02-02 | 北京威巨特电子技术有限公司 | Electric fireproof current-limiting protector |
| CN220527685U (en) * | 2023-07-22 | 2024-02-23 | 浙江国涛电气有限公司 | Electric fireproof current-limiting protector |
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| US6714391B2 (en) * | 2001-10-04 | 2004-03-30 | Ise Research Corporation | Ultracapacitor energy storage cell pack and methods of assembling and cooling the same |
| CN112787306A (en) * | 2019-11-04 | 2021-05-11 | 帕西·西姆公司 | Ground fault interrupt and USB power supply electrical wiring device |
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2024
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| US4192976A (en) * | 1978-12-29 | 1980-03-11 | Gte Automatic Electric Laboratories Incorporated | Pushbutton call transmitter |
| CN201038480Y (en) * | 2007-02-15 | 2008-03-19 | 黄华道 | Creepage protecting socket |
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| CN217335048U (en) * | 2022-01-05 | 2022-08-30 | 常熟开关制造有限公司(原常熟开关厂） | Electric fire prevention current limiting type protector |
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| CN218498004U (en) * | 2022-07-27 | 2023-02-17 | 浙江华航电气股份有限公司 | Special automatic reclosing circuit breaker of photovoltaic |
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| CN219698215U (en) * | 2022-12-28 | 2023-09-15 | 浙江迪尔逊科技有限公司 | Fireproof current-limiting protector |
| CN116137214A (en) * | 2023-03-22 | 2023-05-19 | 上海正泰智能科技有限公司 | Circuit breaker |
| CN220527685U (en) * | 2023-07-22 | 2024-02-23 | 浙江国涛电气有限公司 | Electric fireproof current-limiting protector |
| CN220440368U (en) * | 2023-07-31 | 2024-02-02 | 北京威巨特电子技术有限公司 | Electric fireproof current-limiting protector |
Also Published As
| Publication number | Publication date |
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| CN117912905A (en) | 2024-04-19 |
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