CN114487526A - Direct current intelligent electric energy meter - Google Patents
Direct current intelligent electric energy meter Download PDFInfo
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- CN114487526A CN114487526A CN202210086757.1A CN202210086757A CN114487526A CN 114487526 A CN114487526 A CN 114487526A CN 202210086757 A CN202210086757 A CN 202210086757A CN 114487526 A CN114487526 A CN 114487526A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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Abstract
The invention relates to the field of intelligent electric meters, in particular to a direct-current intelligent electric energy meter, which comprises a shell and a wiring terminal, wherein the wiring terminal is arranged in the shell and is connected with a circuit board through a wire; the anti-drag mechanism is installed below the wiring terminal in the shell, and the wiring terminal is connected with an external wire which passes through the anti-drag mechanism and is connected into the shell from the outside. According to the invention, the anti-pulling mechanism is arranged below the connecting terminal and comprises the strip-shaped blocks, the winding rollers which are distributed in an up-and-down symmetrical mode, the sliding blocks connected with the winding rollers, the springs arranged between the sliding blocks and the guide bolts penetrating through the sliding blocks, so that when the external wire is pulled, the winding rollers are close to each other to buffer the margin of the pulled external wire, when the external wire is stressed greatly, the winding rollers are completely pulled to be in contact, and at the moment, the winding rollers extrude and lock the external wire, the anti-pulling capacity is improved, the contact between the external wire and the connecting terminal is kept, and the anti-pulling effect is better.
Description
Technical Field
The invention relates to the field of intelligent electric meters, in particular to a direct-current intelligent electric energy meter.
Background
The intelligent electric meter is one of basic devices for data acquisition of an intelligent power grid (particularly an intelligent power distribution network), bears the tasks of original electric energy data acquisition, metering and transmission, and is the basis for realizing information integration, analysis optimization and information display. Besides the basic electricity consumption metering function of the traditional electric energy meter, the intelligent electric meter also has intelligent functions such as bidirectional multi-rate metering function, user side control function, bidirectional data communication function of multiple data transmission modes, electricity larceny prevention function and the like in order to adapt to the use of an intelligent power grid and new energy.
Introduce the electric energy meter casing through binding post with external connection in traditional smart electric meter, in the in-service use process, the external connection takes place easily not hard up with binding post junction and causes contact failure or takes place to drop or lax when the external connection is pulled by accident or maliciously easily, causes the electric energy meter can not normally work.
Disclosure of Invention
The invention aims to provide a direct current intelligent electric energy meter to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a direct current intelligent electric energy meter comprises a shell, a circuit board arranged in the shell, a display screen arranged on the circuit board, and a wiring terminal arranged in the shell and connected with the circuit board through a wire; an anti-drag mechanism is arranged in the shell below the wiring terminal, and the wiring terminal is connected with an external wire which passes through the anti-drag mechanism and is connected into the shell from the outside;
the anti-drag mechanism comprises a strip-shaped block, winding rollers, a group of sliding blocks, guide bolts and springs, wherein the strip-shaped block is installed below the wiring terminal and fixedly connected with the inner wall of the shell, the winding rollers are arranged on the front side of the strip-shaped block in an up-and-down symmetrical mode and are wound by external wires, the sliding blocks are fixedly connected with the inner side of the winding rollers and are embedded in the strip-shaped block and vertically and slidably connected with the strip-shaped block, the guide bolts penetrate through the sliding blocks and extend to the upper side and the lower side of the strip-shaped block, and the springs are arranged between the sliding blocks and sleeved on the guide bolts.
Preferably, the front side of the shell is hinged with a front cover, one side of the shell, which is close to the front cover, is provided with an annular bulge integrally formed with the shell, and the inner wall of the front cover is bonded with a sealing strip which is abutted against the annular bulge and is in a square boss shape; and a sealing sleeve which is arranged in the bottom plate of the shell in the front is arranged at the position where the external connecting wire penetrates through the shell.
Preferably, the surface of the winding roller is provided with a plurality of groups of convex strips which are distributed at equal intervals along the circumferential roller surface.
Preferably, two ends of the winding roller are provided with disc-shaped limiting discs which are integrally formed with the winding roller.
Preferably, be equipped with the confession in the bar piece the gliding vertical sliding groove from top to bottom of sliding block, the sliding block nestification is in vertical sliding groove and with the sliding of vertical sliding groove inner wall butt.
Preferably, the winding roller passes through connecting rod and sliding block fixed connection, and the bar piece is equipped with and supplies the connecting rod to pass through and with the vertical logical groove of vertical spout intercommunication.
Preferably, the bar-shaped block is fixedly connected with the inner wall of the shell through a fixing bolt, and the guide bolt penetrates through the bar-shaped block and is in threaded connection with a nut abutted against the outer wall of the bar-shaped block.
Preferably, a group of observation windows distributed up and down are arranged on the front cover, the observation window positioned at the upper end is opposite to the display screen, and the observation window positioned at the lower end is opposite to the anti-dragging mechanism.
Preferably, a lock catch connected with the shell through threads penetrates through one side, far away from the hinge, of the front cover.
Preferably, the sealing sleeve is in the shape of a hollow round table cylinder with a narrow upper part and a wide lower part.
Compared with the prior art, the invention has the beneficial effects that: according to the anti-pulling mechanism, the anti-pulling mechanism is arranged below the connecting terminal and comprises the strip-shaped blocks, the winding rollers which are symmetrically distributed up and down, the sliding blocks connected with the winding rollers, the springs arranged between the sliding blocks and the guide bolts penetrating through the sliding blocks, so that when an external wire is pulled, the winding rollers are close to each other to buffer the allowance of the pulled external wire, when the external wire is greatly stressed, the winding rollers are completely pulled to be in contact, and the winding rollers extrude and lock the external wire at the moment, so that the anti-pulling capacity is improved, the contact between the external wire and the connecting terminal is kept, and a good anti-pulling effect is achieved.
According to the invention, the front cover with the vertically distributed observation windows is arranged, so that the reading of the electric meter and the wiring condition of the cable can be conveniently observed; simultaneously, through being equipped with the sealing strip that is square boss form and the annular arch that sets up relative with the sealing strip and setting up the seal cover that external connection and casing wear the contact, improve the leakproofness of casing, avoid steam and dust to enter into in the casing, improve the life of electric energy meter.
Drawings
Fig. 1 is a schematic perspective view of a dc intelligent electric energy meter.
Fig. 2 is a schematic diagram of an internal structure of a housing of the dc intelligent electric energy meter.
Fig. 3 is a schematic perspective view of an external connection and anti-drag mechanism in the dc intelligent electric energy meter.
Fig. 4 is a sectional view of the drag prevention mechanism in the dc intelligent electric energy meter.
Fig. 5 is a schematic view of an assembly structure of a winding roller and a sliding block in the direct current intelligent electric energy meter.
Fig. 6 is a schematic structural diagram of an inner wall of a front cover in the dc intelligent electric energy meter.
Fig. 7 is a schematic perspective view of a sealing strip in the dc intelligent electric energy meter.
In the figure: 1. a housing; 101. an annular projection; 2. a front cover; 3. a hinge; 4. locking; 5. an observation window; 6. a circuit board; 7. a display screen; 8. a wiring terminal; 9. external connection; 10. an anti-drag mechanism; 11. sealing sleeves; 12. a bar-shaped block; 1201. a vertical chute; 1202. a vertical through groove; 13. a winding roller; 1301. a raised strip; 1302. a limiting disc; 14. a connecting rod; 15. a slider; 16. a spring; 17. a guide bolt; 18. fixing the bolt; 19. and (4) a sealing strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1-7, in an embodiment of the present invention, a dc intelligent electric energy meter includes a housing 1, a circuit board 6 installed in the housing 1, a display screen 7 installed on the circuit board 6, and a connection terminal 8 installed in the housing 1 and connected to the circuit board 6 through a wire; an anti-drag mechanism 10 is arranged below the wiring terminal 8 in the shell 1, and the wiring terminal 8 is connected with an external wire 9 which passes through the anti-drag mechanism 10 and is connected into the shell 1 from the outside;
the anti-drag mechanism 10 comprises a strip-shaped block 12, a winding roller 13, a group of sliding blocks 15, guide bolts 17 and springs 16, wherein the strip-shaped block 12 is installed below the wiring terminal 8 and fixedly connected with the inner wall of the shell 1, the winding roller 13 is installed on the front side of the strip-shaped block 12 in a vertically symmetrical mode and is wound by an external wire 9, the sliding blocks 15 are fixedly connected with the inner side of the winding roller 13 in a nested mode in the strip-shaped block 12 and are vertically and slidably connected with the strip-shaped block 12, the guide bolts 17 penetrate through the sliding blocks 15 and extend to the upper side and the lower side of the strip-shaped block 12, and the springs 16 are arranged between the sliding blocks 15 and are sleeved on the guide bolts 17.
Specifically, the external connection wire is inserted into the housing 1, the external connection wire 9 is firstly wound on the winding roller 13 positioned below for one or more turns, then the external connection wire 9 is wound on the winding roller 13 positioned above for one or more turns, and then the external connection wire 9 is connected with the connection terminal 8.
When the external wire 9 is pulled unintentionally or maliciously, the external wire 9 drives the winding rollers 13 distributed up and down to move oppositely, so that pulling is buffered, and the external wire 9 is prevented from being separated from the connecting terminal after being directly straightened; when the pulling distance is long, the winding rollers 13 oppositely move to be mutually abutted, the winding rollers 13 distributed up and down extrude and lock the external wire 9, so that the pulling of the outside is resisted, and the connection position of the external wire 9 and the connecting terminal is protected from loosening;
in addition, a certain margin is left at the part of the external wire 9 between the winding roller 13 and the connecting terminal 8, so that the connecting terminal of the external wire 9 and the connecting terminal 8 is prevented from being directly pulled out when the winding rollers 13 move towards each other.
In this embodiment, the surface of the winding roller 13 is provided with a plurality of sets of protruding strips 1301 equally distributed along the circumferential surface thereof.
Specifically, the protruding strips 1301 which are distributed in the circumferential direction are arranged, so that the friction body between the external connection wire 9 and the winding roller 13 is improved, and the extrusion locking effect of the winding roller 13 on the external connection wire when the external connection wire is abutted to the winding roller is guaranteed.
In this embodiment, the two ends of the winding roller 13 are provided with a disc-shaped limiting disc 1302 integrally formed therewith.
Specifically, the limiting discs 1302 arranged at the two ends of the winding roller 13 prevent the external connection wires 9 from being separated from the winding roller 13 in the pulling process, and the contact between the winding roller 13 and the external connection wires 9 is ensured.
In this embodiment, a vertical sliding groove 1201 is provided in the bar block 12 for the sliding block 15 to slide up and down, and the sliding block 15 is nested in the vertical sliding groove 1201 and slides in abutment with the inner wall of the vertical sliding groove 1201.
Specifically, when kinking roller 13 reciprocated, sliding block 15 reciprocated in step in vertical spout 1201, guaranteed that kinking roller 13 keeps the horizontality, and then guarantees the winding of external connection, improves the stability that kinking roller 13 reciprocated, guarantees to prevent dragging the effect.
In this embodiment, the winding roller 13 is fixedly connected to the sliding block 15 through a connecting rod 14, the bar block 12 is provided with a vertical through slot 1202 through which the connecting rod 14 passes and communicates with the vertical sliding slot 1201, and the middle portion of the vertical through slot 1202 is provided with an opening having a longitudinal projection area larger than that of the sliding block 15.
Specifically, by providing the vertical through-groove 1202, the connecting rod 14 passes through the vertical through-groove 1202 to connect the winding roller 13 and the slide block 15.
In this embodiment, the bar-shaped block 12 is fixedly connected to the inner wall of the housing 1 by a fixing bolt 18, and the guide bolt 17 penetrates the bar-shaped block 12 and is threadedly connected to a nut abutting against the outer wall of the bar-shaped block 12.
In particular, the anti-drag mechanism 10 is conveniently disassembled.
In another embodiment of the invention, the front side of the casing 1 is hinged with the front cover 2, one side of the casing 1 close to the front cover 2 is provided with an annular bulge 101 which is integrally formed with the casing 1, and the inner wall of the front cover 2 is bonded with a sealing strip 19 which is abutted against the annular bulge 101 and is in a square boss shape; and a sealing sleeve 11 which is arranged in the bottom plate of the shell 1 from the front is arranged at the position where the external connection 9 penetrates through the shell 1.
Specifically, after the front cover 2 is closed, the sealing strip 19 is filled between the front cover 2 and the annular protrusion 101, so that a good sealing effect is realized, the shell 1 has a good dustproof and waterproof effect, and the service life of the electric element inside the electric energy meter is prolonged.
In this embodiment, a set of viewing windows 5 distributed vertically is opened on the front cover 2, the viewing window 5 located at the upper end is disposed opposite to the display 7, and the viewing window 5 located at the lower end is disposed opposite to the anti-dragging mechanism 10.
Particularly, the reading and the wiring observation of the electric energy meter are convenient to carry out.
In the present embodiment, a lock catch 4 screwed with the housing 1 penetrates through the front cover 2 on the side away from the hinge 3.
In particular, the front cover 2 is convenient to lock and unlock.
In this embodiment, the sealing sleeve 11 is in the shape of a hollow circular truncated cone with a narrow top and a wide bottom.
Specifically, the external connecting wire 9 penetrates from the lower part of the sealing sleeve 11 and penetrates out from the upper part of the sealing sleeve, and the sealing sleeve in the shape of a hollow circular truncated cone can be well attached to the outer wall of the external connecting wire 9, so that the sealing effect of the shell 1 is guaranteed.
The working principle is as follows:
the external connection wire is inserted into the housing 1, the external connection wire 9 is firstly wound on the winding roller 13 positioned below for one or more turns, then the external connection wire 9 is wound on the winding roller 13 positioned above for one or more turns, and then the external connection wire 9 is connected with the connecting terminal 8.
When the external wire 9 is pulled unintentionally or maliciously, the external wire 9 drives the winding rollers 13 distributed up and down to move oppositely, so that pulling is buffered, and the external wire 9 is prevented from being separated from the connecting terminal after being directly straightened; when the pulling distance is long, the winding rollers 13 oppositely move to be mutually abutted, the winding rollers 13 distributed up and down extrude and lock the external wire 9, so that the pulling of the outside is resisted, and the connection position of the external wire 9 and the connecting terminal is protected from loosening;
in addition, a certain margin is left at the part of the external wire 9 between the winding roller 13 and the connecting terminal 8, so that the situation that the external wire 9 and the connecting terminal 8 are directly pulled out when the winding roller 13 moves towards each other is avoided.
In addition, after the front cover 2 is closed, the sealing strip 19 is filled between the front cover 2 and the annular bulge 101, so that a good sealing effect is realized, the shell 1 has a good dustproof and waterproof effect, and the service life of an electric element inside the electric energy meter is prolonged.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A direct current intelligent electric energy meter comprises a shell (1), a circuit board (6) arranged in the shell (1), a display screen (7) arranged on the circuit board (6), and a wiring terminal (8) arranged in the shell (1) and connected with the circuit board (6) through a wire; the anti-drag device is characterized in that an anti-drag mechanism (10) is arranged below a wiring terminal (8) in the shell (1), and the wiring terminal (8) is connected with an external wire (9) which passes through the anti-drag mechanism (10) and is connected into the shell (1) from the outside;
anti-drag mechanism (10) including install in binding post (8) below and with casing (1) inner wall fixed connection's strip piece (12), install the multiunit longitudinal symmetry of strip piece (12) front side sets up and twine line roller (13) by external connection (9) winding, a set of with twine line roller (13) inboard fixedly connected with nestification in strip piece (12) and with strip piece (12) vertical sliding connection's sliding block (15), run through sliding block (15) and extend to strip piece (12) upper and lower both sides guide bolt (17), set up and be in between sliding block (15) and establish spring (16) on guide bolt (17).
2. The direct-current intelligent electric energy meter according to claim 1, characterized in that a front cover (2) is hinged to the front side of the housing (1), an annular protrusion (101) which is integrally formed with the housing (1) is arranged on one side of the housing (1) close to the front cover (2), and a sealing strip (19) which is abutted to the annular protrusion (101) and is in a square boss shape is bonded to the inner wall of the front cover (2); and a sealing sleeve (11) which is arranged in the bottom plate of the shell (1) before is arranged at the position where the external wire (9) penetrates through the shell (1).
3. The direct current intelligent electric energy meter according to claim 1, characterized in that the surface of the winding roller (13) is provided with a plurality of groups of protruding strips (1301) which are distributed at equal intervals along the circumferential roller surface.
4. The direct current intelligent electric energy meter according to claim 1, wherein both ends of the winding roller (13) are provided with a limiting disc (1302) which is integrally formed with the winding roller and is in a disc shape.
5. The direct-current intelligent electric energy meter according to claim 1, wherein a vertical sliding groove (1201) for the sliding block (15) to slide up and down is arranged in the bar-shaped block (12), and the sliding block (15) is nested in the vertical sliding groove (1201) and abuts against and slides on the inner wall of the vertical sliding groove (1201).
6. The direct-current intelligent electric energy meter according to claim 1, wherein the winding roller (13) is fixedly connected with the sliding block (15) through a connecting rod (14), and the strip-shaped block (12) is provided with a vertical through groove (1202) through which the connecting rod (14) passes and which is communicated with the vertical sliding groove (1201).
7. The direct-current intelligent electric energy meter according to claim 1, characterized in that the bar-shaped block (12) is fixedly connected with the inner wall of the shell (1) through a fixing bolt (18), and the guide bolt (17) penetrates through the bar-shaped block (12) and is in threaded connection with a nut abutted against the outer wall of the bar-shaped block (12).
8. The direct-current intelligent electric energy meter according to claim 2, wherein a group of observation windows (5) distributed up and down are formed in the front cover (2), the observation window (5) at the upper end is arranged opposite to the display screen (7), and the observation window (5) at the lower end is arranged opposite to the anti-dragging mechanism (10).
9. The direct current intelligent electric energy meter according to claim 2, wherein a lock catch (4) in threaded connection with the housing (1) penetrates through one side of the front cover (2) away from the hinge (3).
10. The direct-current intelligent electric energy meter according to claim 2, wherein the sealing sleeve (11) is in the shape of a hollow truncated cone with a narrow top and a wide bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210086757.1A CN114487526B (en) | 2022-01-25 | 2022-01-25 | Direct current intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210086757.1A CN114487526B (en) | 2022-01-25 | 2022-01-25 | Direct current intelligent electric energy meter |
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| Publication Number | Publication Date |
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| CN114487526A true CN114487526A (en) | 2022-05-13 |
| CN114487526B CN114487526B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210086757.1A Active CN114487526B (en) | 2022-01-25 | 2022-01-25 | Direct current intelligent electric energy meter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115754399A (en) * | 2022-11-08 | 2023-03-07 | 中南仪表有限公司 | Single-phase intelligent Internet of things electric energy meter |
| CN116413490A (en) * | 2023-06-07 | 2023-07-11 | 北京京仪北方仪器仪表有限公司 | Intelligent electric energy meter |
| CN116626354A (en) * | 2023-03-27 | 2023-08-22 | 佳源科技股份有限公司 | Direct current intelligent electric energy meter |
| CN117269570A (en) * | 2023-09-14 | 2023-12-22 | 南京国电南思科技发展股份有限公司 | Electric energy meter with connector structure |
| CN118510189A (en) * | 2024-07-18 | 2024-08-16 | 珠海格力电器股份有限公司 | Controller keysets, automobile-used controller and vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115754399A (en) * | 2022-11-08 | 2023-03-07 | 中南仪表有限公司 | Single-phase intelligent Internet of things electric energy meter |
| CN115754399B (en) * | 2022-11-08 | 2024-03-15 | 中南仪表有限公司 | Single-phase intelligent internet of things electric energy meter |
| CN116626354A (en) * | 2023-03-27 | 2023-08-22 | 佳源科技股份有限公司 | Direct current intelligent electric energy meter |
| CN116626354B (en) * | 2023-03-27 | 2023-11-03 | 佳源科技股份有限公司 | Direct current intelligent electric energy meter |
| CN116413490A (en) * | 2023-06-07 | 2023-07-11 | 北京京仪北方仪器仪表有限公司 | Intelligent electric energy meter |
| CN116413490B (en) * | 2023-06-07 | 2023-08-08 | 北京京仪北方仪器仪表有限公司 | Intelligent electric energy meter |
| CN117269570A (en) * | 2023-09-14 | 2023-12-22 | 南京国电南思科技发展股份有限公司 | Electric energy meter with connector structure |
| CN117269570B (en) * | 2023-09-14 | 2024-03-22 | 南京国电南思科技发展股份有限公司 | Electric energy meter with connector structure |
| CN118510189A (en) * | 2024-07-18 | 2024-08-16 | 珠海格力电器股份有限公司 | Controller keysets, automobile-used controller and vehicle |
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|---|---|
| CN114487526B (en) | 2022-07-22 |
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Denomination of invention: A DC intelligent electric energy meter Effective date of registration: 20221106 Granted publication date: 20220722 Pledgee: Wenzhou Yueqing sub branch of Zheshang Bank Co.,Ltd. Pledgor: Zhongnan Instrument Co.,Ltd. Registration number: Y2022330002925 |
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