CN219658175U - Low-fault prepayment ammeter - Google Patents
Low-fault prepayment ammeter Download PDFInfo
- Publication number
- CN219658175U CN219658175U CN202321227065.0U CN202321227065U CN219658175U CN 219658175 U CN219658175 U CN 219658175U CN 202321227065 U CN202321227065 U CN 202321227065U CN 219658175 U CN219658175 U CN 219658175U
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- relay
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- electric meter
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a low-fault prepayment ammeter which comprises an ammeter shell, a transformer, a relay and a circuit board, wherein the ammeter shell comprises a base shell and an upper cover shell; the end torsion box is detachably arranged at the left side end in the base shell, a plurality of wiring cavities are arranged in the end torsion box, and each wiring cavity is internally provided with a wiring frame; the end torsion box is provided with a plurality of wiring screws which are respectively matched with the corresponding wiring frames, and a plurality of wiring holes which are respectively communicated with the corresponding wiring cavities; the pin seat is arranged in the base shell and is abutted against the right side of the end torsion box, and a plurality of pin grooves are formed in the pin seat; the input pins and the output pins of the relay penetrate through the pin grooves and extend into the corresponding wire frames; the pin fixing block is detachably arranged on the pin seat and used for clamping and fixing pins, and a plurality of pin fixing screws are arranged on the pin fixing block. The end part of the pin of the relay is not easy to deform, the failure rate is lower, and the whole service life of the ammeter is longer.
Description
Technical Field
The utility model relates to the field of electric meters, in particular to a low-fault prepayment electric meter.
Background
The section of the alternating current input and output cable of the load is circular, and the wiring terminal of the prepayment ammeter, namely the wiring frame, is rectangular, meanwhile, in order to simplify the structure, the input and output pins of the relay in the existing prepayment ammeter generally directly extend into the corresponding wiring frame, the section of the pin extending end of the relay is in a shape, so that the pin extending end and the rectangular wiring frame are stressed unevenly in the process of crimping the cable by the wiring terminal, the deformation of the pin extending end of the relay is caused, the deformation of the pin end of the relay can lead to the deformation of the end part of the pin of the relay, and the deformation of the end part of the pin of the relay can lead to poor contact and even incapability of contact of a closed terminal in the relay, so that the relay breaks down, and the prepayment ammeter is caused to break down and cannot be used.
Disclosure of Invention
The utility model aims to provide a low-fault prepaid ammeter with a relay fault caused by the fact that the end part of a pin of the relay is not easy to deform under stress.
The purpose of the utility model is realized in the following way: a low-fault prepayment ammeter comprises an ammeter shell, wherein the ammeter shell comprises a base shell and an upper cover shell; a transformer arranged in the shell of the electric meter; the relay is arranged in the shell of the electric meter and is provided with an input pin and an output pin; the circuit boards are arranged in the shell of the electric meter; the end torsion box is detachably arranged at the left side end in the base shell, a plurality of wiring cavities are formed in the end torsion box, and each wiring cavity is internally provided with a wiring frame; the end torsion box is provided with a plurality of wiring screws which are respectively matched with the corresponding wiring frames, and a plurality of wiring holes which are respectively communicated with the corresponding wiring cavities; the pin seat is arranged in the base shell and is abutted against the right side of the end torsion box, and a plurality of pin grooves are formed in the pin seat; the input pins and the output pins of the relay penetrate through the pin grooves and extend into the corresponding wire frames; the pin fixing block is detachably arranged on the pin seat and used for clamping and fixing pins, and a plurality of pin fixing screws are arranged on the pin fixing block.
Compared with the prior art, the utility model has the beneficial effects that: the pin seat and the pin fixing block are additionally arranged in the prepaid ammeter provided by the utility model and used for fixing the middle part of the pin, so that the stress deformation of the pin at the wiring end is prevented from being transmitted to the end part of the pin of the relay, the relay fault caused by the deformation of the end part of the pin of the relay is avoided, the fault rate is further reduced, and the whole service life of the ammeter is prolonged.
As the preferable scheme of the utility model, the ammeter further comprises a relay positioning frame, wherein the relay positioning frame is arranged at the bottom of the inner side of the base shell, the relay is detachably arranged in the relay positioning frame, and a relay fixing seat is arranged on the right side of the relay positioning frame; and the right side end of the relay fixing plate is provided with a relay fixing screw, and the right side end of the relay fixing plate is fixedly connected with the relay fixing seat through the relay fixing screw. The design can simply and effectively fix the relay, and avoid the stress deformation of the end part of the pin of the relay caused by the displacement of the relay.
Further, the pin fixing block is provided with a plurality of pin fixing protrusions matched with the pin grooves. The design is convenient for the quick positioning of the pin fixing block, and then the installation and the fixation are convenient.
Further, the cross sections of the extending ends of the input pins and the output pins are arc-shaped. The design makes pin and electric wire contact atress more even like this, is difficult for taking place the position skew, and then the deformation is littleer.
Further, the matching parts of the input pins, the output pins and the pin grooves are provided with limiting protrusions. The design can realize the constraint on the length direction of the pin, and avoid the stress of the end part of the pin of the relay from being pulled in the length direction.
Further, the relay is a magnetic latching relay. The common relay is required to be attracted by the relay coil to be continuously powered on, so that part of electric energy is required to be consumed, the attraction of the magnetic latching relay is controlled by pulses in a short time, and the electric energy required to be consumed is limited, so that the magnetic latching relay is adopted to replace the common relay, and the power consumption of the prepaid ammeter can be reduced.
Drawings
Fig. 1 is a schematic view of the internal structure of the present utility model.
Fig. 2 is a schematic diagram of a mating relationship between a pin holder and a pin fixing block according to the present utility model.
Fig. 3 is a schematic partial cross-sectional view of a terminal of the present utility model.
Fig. 4 is a front view and a right side view of the end twist capsule of the present utility model.
The three-dimensional relay socket comprises a 1 base shell, a 2 relay, a 2a input pin, a 2b output pin, a 2c limiting protrusion, a 3-end torsion box, a 3a wiring cavity, a 3b wiring frame, a 3c wiring screw, a 3d wiring hole, a 4 pin seat, a 4a pin groove, a 5 pin fixing block, a 5a pin fixing screw, a 5b pin fixing protrusion, a 6 relay positioning frame, a 7 relay fixing seat, an 8 relay fixing plate, a 9 relay fixing screw and 10 wires.
Detailed Description
The above and further technical features and advantages of the present utility model are described in more detail below with reference to the accompanying drawings.
Referring to fig. 1 to 4, a low-fault prepaid electric meter comprises a meter housing, wherein the meter housing comprises a base housing 1 and an upper cover housing; a transformer arranged in the shell of the electric meter; a relay 2, wherein the relay 2 is arranged in an ammeter shell, an input pin 2a and an output pin 2b are arranged on the relay 2, and the relay 2 is a magnetic latching relay; the circuit boards are arranged in the shell of the electric meter; the end torsion box 3 is detachably arranged at the left side end in the base shell 1, a plurality of wiring cavities 3a are arranged in the end torsion box 3, and a wiring frame 3b is arranged in each wiring cavity 3 a; the end torsion box 3 is provided with a plurality of wiring screws 3c which are respectively matched with the corresponding wiring frames 3b, and a plurality of wiring holes 3d which are respectively communicated with the corresponding wiring cavities 3 a; a pin seat 4, wherein the pin seat 4 is arranged in the base shell 1 and is abutted against the right side of the end torsion box 3, and a plurality of pin grooves 4a are formed in the pin seat; the input pin 2a and the output pin 2b of the relay pass through the corresponding pin grooves 4a and then extend into the corresponding wire frame 3b; the pin fixing block 5 is detachably mounted on the pin seat 4 for clamping and fixing pins, and a plurality of pin fixing screws 5a are provided thereon.
As shown in fig. 1 and 3, the ammeter further comprises a relay positioning frame 6, wherein the relay positioning frame 6 is arranged at the bottom of the inner side of the base shell 1, the relay 2 is detachably arranged in the relay positioning frame 6, and a relay fixing seat 7 is arranged on the right side of the relay positioning frame 6; the relay fixed plate 8, the above-mentioned relay fixed plate 8 is detachably pressed and placed on the relay 2, and its left side end is put on the pin fixed block 5, realizes fixing through pin set screw 5a, and its right side end is put on the relay fixing base 7, and the right side end of above-mentioned relay fixed plate 8 is equipped with relay set screw 9, and the right side end of above-mentioned relay fixed plate 8 realizes the fixed connection with relay fixing base 7 through relay set screw 9.
Referring to fig. 2, the pin fixing block 5 is provided with a plurality of pin fixing protrusions 5b for being matched with the pin grooves 4 a.
The cross sections of the extending ends of the input pin 2a and the output pin 2b are arc-shaped.
Referring to fig. 1, the engaging portions of the input pin 2a, the output pin 2b and the pin groove 4a are provided with a limiting protrusion 2c.
During assembly, the terminal box 3 is firstly slidably mounted on the base shell 1, then the pin heads of the relay 2 extend into the corresponding wire frames 3b, then the middle parts of the pins are placed into the corresponding pin grooves 4a, meanwhile, the relay 2 is mounted in the relay positioning frame 6, then the pin fixing blocks 5 are mounted, and finally the relay fixing plates 8 are mounted, so that the relay 2 is fixed.
The utility model is not limited to the above embodiments, and based on the technical solution disclosed in the utility model, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the utility model.
Claims (6)
1. A low fault prepaid electric meter, characterized by: the electric meter comprises
The electric meter comprises an electric meter shell, a power supply device and a power supply device, wherein the electric meter shell comprises a base shell (1) and an upper cover shell;
the mutual inductor is arranged in the shell of the electric meter;
the relay (2) is arranged in the shell of the electric meter, and an input pin (2 a) and an output pin (2 b) are arranged on the relay (2);
the circuit boards are arranged in the shell of the electric meter;
the end torsion box (3), the end torsion box (3) is detachably arranged at the left side end inside the base shell (1), a plurality of wiring cavities (3 a) are arranged in the end torsion box, and a wiring frame (3 b) is arranged in each wiring cavity (3 a); the end torsion box (3) is provided with a plurality of wiring screws (3 c) which are respectively matched with the corresponding wiring frames (3 b), and a plurality of wiring holes (3 d) which are respectively communicated with the corresponding wiring cavities (3 a);
the pin seat (4) is arranged in the base shell (1) and is abutted against the right side of the end torsion box (3), and a plurality of pin grooves (4 a) are formed in the pin seat; the input pins (2 a) and the output pins (2 b) of the relay penetrate through the corresponding pin grooves (4 a) and then extend into the corresponding wire frames (3 b);
the pin fixing block (5) is detachably arranged on the pin seat (4) and used for clamping and fixing pins, and a plurality of pin fixing screws (5 a) are arranged on the pin fixing block.
2. A low fault prepaid electric meter according to claim 1, characterized in that: the electric meter also comprises
The relay positioning frame (6), the relay positioning frame (6) is arranged at the bottom of the inner side of the base shell (1), the relay (2) is detachably arranged in the relay positioning frame (6), and a relay fixing seat (7) is arranged on the right side of the relay positioning frame (6);
the relay fixed plate (8), relay fixed plate (8) can dismantle the ground pressure and put on relay (2), and its left side end is put on pin fixed block (5), realizes fixing through pin set screw (5 a), and its right side end is put on relay fixing base (7), the right side end of relay fixed plate (8) is equipped with relay set screw (9), the right side end of relay fixed plate (8) realizes the fixed connection with relay fixing base (7) through relay set screw (9).
3. A low-fault prepaid electric meter according to claim 1 or 2, characterized in that: the pin fixing block (5) is provided with a plurality of pin fixing bulges (5 b) which are matched with the pin grooves (4 a).
4. A low-fault prepaid electric meter according to claim 1 or 2, characterized in that: the sections of the extending ends of the input pins (2 a) and the output pins (2 b) are arc-shaped.
5. A low-fault prepaid electric meter according to claim 1 or 2, characterized in that: and limit protrusions (2 c) are arranged at the matching positions of the input pins (2 a), the output pins (2 b) and the pin grooves (4 a).
6. A low-fault prepaid electric meter according to claim 1 or 2, characterized in that: the relay (2) is a magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321227065.0U CN219658175U (en) | 2023-05-20 | 2023-05-20 | Low-fault prepayment ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321227065.0U CN219658175U (en) | 2023-05-20 | 2023-05-20 | Low-fault prepayment ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219658175U true CN219658175U (en) | 2023-09-08 |
Family
ID=87878731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321227065.0U Active CN219658175U (en) | 2023-05-20 | 2023-05-20 | Low-fault prepayment ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219658175U (en) |
-
2023
- 2023-05-20 CN CN202321227065.0U patent/CN219658175U/en active Active
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