CN116959166A - Electric card plug-in type ammeter - Google Patents
Electric card plug-in type ammeter Download PDFInfo
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- CN116959166A CN116959166A CN202311205322.5A CN202311205322A CN116959166A CN 116959166 A CN116959166 A CN 116959166A CN 202311205322 A CN202311205322 A CN 202311205322A CN 116959166 A CN116959166 A CN 116959166A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 10
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
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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
- G01R11/56—Special tariff meters
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The application discloses an electric card plug-in type ammeter, and belongs to the technical field of ammeter. The electric meter mainly comprises an electric meter main body, wherein a slot is formed in the electric meter main body and is used for inserting an electric card, a chip is arranged on the electric card, and contacts which are in contact with the chip are arranged in the slot; the card assembly, this card assembly installs in the ammeter main part, and card assembly includes: a mounting portion mounted within the meter body; the sliding positioning device is arranged on the mounting part and used for guiding the electric card to slide to a position communicated with the electric meter main body and fixing the electric card; the wiping roller is connected to the mounting part through a bearing, and is used for wiping an oxide layer on the electric card chip; wherein: the electric card is suitable for carrying out data transmission with the ammeter main body when the chip and the contact are inserted in opposite directions and contacted, and the electric card is suitable for wiping and cleaning the chip by the wiping roller when the chip and the contact are inserted in opposite directions and separated from each other.
Description
Technical Field
The application relates to the technical field of electric meters, in particular to an electric card plug-in type electric meter.
Background
The IC card prepaid ammeter is also called as IC card prepaid ammeter and intelligent ammeter, which uses IC card as data transmission medium of electric energy value, charges ammeter or realizes multi-card exchange function by plugging IC card, which is beneficial to modernization management, fully embodies commodity property of electric power, solves the problem of charge difficulty, and has various anti-theft functions, beautiful appearance, small volume, light weight and convenient installation.
The contact type IC card is mainly a contact type IC card, because the contact type IC card adopts physical contact, the chip contact is exposed outside and is influenced by factors of manual use and storage, the chip contact is in contact with water or sweat on hands of a user, so that an oxide layer is generated on the surface of the chip contact, the oxide layer can cause obstruction to data transmission of the chip, and the problem of poor contact is easy to occur, but the contact type IC card is simpler in circuit of the card and a corresponding card reader because wireless transmission signals are not needed, and the cost is lower, so that the contact type IC card is also wider in use.
When the oxide layer appears on the surface of the electric card chip, the effort required for replacing the electric card is large, the surface of the chip contact is usually wiped by using the rubber, so that the oxide layer on the surface of the chip contact is cleaned, then when the electric card is in actual use, a wiper is required to be found when the bad contact of the electric card is found, and the wiper is not necessarily found, but the surface of the chip contact is polished by common hard substances, so that the damage of the internal circuit of the chip is caused, the electric card cannot be used at all, and the trouble is caused for users who need to use electricity urgently after power is solved by the electric card plug-in ammeter.
It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may contain information that does not constitute prior art.
Disclosure of Invention
Based on the problems in the prior art, the technical problems to be solved by the application are as follows: the utility model provides an electric card inserts dials formula ammeter, reaches the effect of clearance electric card chip contact surface oxide layer through the mode of reverse plug electric card.
The technical scheme adopted for solving the technical problems is as follows: the electric card plug-in type ammeter comprises an ammeter main body, wherein a slot is formed in the ammeter main body, the slot is used for inserting an electric card, a chip is arranged on the electric card, and contacts in contact with the chip are arranged in the slot; a card assembly mounted within the meter body, the card assembly comprising: a mounting portion mounted within the meter body; the sliding positioning device is arranged on the installation part and is used for guiding the electric card to slide to a position communicated with the electric meter main body and fixing the electric card; a wiping roller bearing connected to the mounting portion, the wiping roller being for wiping an oxide layer on the electronic card chip; wherein: the electric card is suitable for carrying out data transmission with the ammeter main body when the chip and the contact are inserted in opposite directions and contacted, and the electric card is suitable for wiping and cleaning the chip by the wiping roller when the chip and the contact are inserted in opposite directions.
Further, the sliding positioning device comprises a guiding part which is connected in the mounting part in a sliding way, a notch for inserting the electric card is formed in one side of the guiding part, an elastic pressing sheet is mounted on the guiding part, and a positioning hole matched with the elastic pressing sheet is formed in the mounting part; wherein: the elastic pressing piece is suitable for enabling the notch to be in contact with the slot when the elastic pressing piece is matched with the positioning hole, and limiting the relative position of the electric card inserted into the notch and the guide part when the elastic pressing piece is out of matching with the positioning hole.
Further, the sliding positioning device further comprises a limiting rod connected to one side of the guide part through a bearing, a limiting spring is arranged between one side of the limiting rod in the rotating direction and the guide part, a rubber pad is arranged between the other side of the limiting rod in the rotating direction and the guide part, the limiting rod is suitable for being positioned at a horizontal position under the action of the rubber pad and the limiting spring, a matching unit is arranged on the mounting part, a sliding groove is formed in the mounting part, a sliding block is connected in the sliding groove in a sliding mode, a reset spring is arranged between the sliding block and one end of the sliding groove, and the reset spring is used for giving force for the sliding block to keep away from the matching unit; wherein: the limiting rod is suitable for being matched with the matching unit through rotation, the guiding part is limited to slide towards the direction of the slot, and the sliding block is used for causing elastic resistance to the sliding of the guiding part towards the direction far away from the slot.
Further, a fixed plate is arranged on the mounting part, a gear is connected to the bearing on the fixed plate, the gear is rotationally connected with the wiping roller, a rack is connected to the fixed plate in a sliding manner, the rack is matched with the gear, and one end of the rack is fixedly connected with the sliding block; wherein: when the guide part slides to be in contact with the sliding block, the electric card chip is positioned at a preliminary contact position with the wiping roller, and when the sliding block moves under the thrust of the guide part, the rack is matched with the gear for transmission.
Further, a ratchet wheel is arranged at the end part of the wiping roller, a matching block is arranged in the gear, a ratchet is connected in a sliding manner in the matching block, a matching spring is arranged between the ratchet and the matching block, and the ratchet is matched with the ratchet wheel; wherein: through the cooperation of the ratchet and the ratchet, the wiping roller is in a free state when the electric card is inserted, and the wiping roller rotates along with the gear when the electric card is pulled out.
Further, the gear is internally provided with a matching groove, the matching block is in sliding connection with the matching groove, a tension spring is arranged between the matching block and the matching groove, the matching block is influenced by the tension force of the tension spring, so that the ratchet is separated from the ratchet, an electromagnet is arranged in the matching groove, the matching block is made of a magnetic material, the fixing plate is provided with a power supply unit, the power supply unit is in ferroelectric connection with the electromagnet, and the matching block is suitable for sliding to a position in contact with the electromagnet in an electrified state of the electromagnet, so that the ratchet is matched with the ratchet.
Further, the power supply unit comprises a sliding sleeve arranged on the fixed plate, an adjusting shaft is connected with an inner bearing of the sliding sleeve, the adjusting shaft is coaxially fixed with the gear, a contact block is connected with the electromagnetic iron in a sliding manner, a threaded section is arranged on the adjusting shaft, the contact block is matched with the threaded section, a contact piece is arranged in the sliding sleeve, and one side of the contact piece is electrically connected with a power supply; wherein: the contact block is suitable for being matched with the threaded section after the sliding block slides against the elastic force of the reset spring and slides downwards in the sliding sleeve, and the contact block is contacted with the contact piece when being matched with the threaded section.
Further, a coil spring is installed between the fixing plate and the adjusting shaft.
Further, a pressing block is connected in the sliding sleeve in a sliding mode, a pressure spring is arranged between the pressing block and the sliding sleeve, and the pressure spring is used for giving force for the pressing block to downwards squeeze the contact block.
Further, the wiping roller is made of rubber.
The beneficial effects of the application are as follows: according to the electric card plug-in type electric meter, the devices in the card plug-in assembly are matched with the wiping roller, so that the chip part of the electric card is wiped when the electric card is reversely plugged in, the oxide layer is cleaned, the wiping roller cannot wipe the electric card when the electric card is normally used, and the use convenience of the electric meter is improved.
In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The present application will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view of an electric card plug-in ammeter according to the present application;
FIG. 2 is a schematic side view of FIG. 1;
FIG. 3 is a schematic view of the interior of the cover plate of FIG. 2;
FIG. 4 is a schematic view of the wiping assembly of FIG. 3 as a whole;
FIG. 5 is an enlarged schematic view of area A of FIG. 4;
FIG. 6 is a schematic cross-sectional view of FIG. 5;
FIG. 7 is a schematic rear view of FIG. 4;
FIG. 8 is an enlarged view of area B of FIG. 7;
FIG. 9 is a schematic view of the electrical card of FIG. 7 in a fixed position;
FIG. 10 is an enlarged schematic view of region C of FIG. 9;
wherein, each reference sign in the figure:
1. an ammeter main body; 2. an electrical card; 3. a cover plate; 4. a card insertion assembly; 5. a slot; 6. a mounting part; 7. a wiping roller; 8. wiping the window; 9. a guide part; 10. a chute; 11. a return spring; 12. a slide block; 13. a rack; 14. a gear; 15. a fixing plate; 16. a sliding sleeve; 17. an adjusting shaft; 18. a contact piece; 19. a contact block; 20. briquetting; 21. a pressure spring; 22. a coil spring; 23. a ratchet wheel; 24. a mating groove; 25. a mating block; 26. a ratchet; 27. a tension spring; 28. a mating spring; 29. an electromagnet; 30. positioning holes; 31. elastic tabletting; 32. a guide block; 33. a stop block; 34. a limit rod; 35. a limit spring; 36. a rubber pad; 37. and a limiting shaft.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
As shown in fig. 1-3, the application provides an electric card plug-in type electric meter, which comprises an electric meter main body 1, wherein the electric meter main body 1 belongs to a plug-in type electric meter, a slot 5 is formed in the front side of the electric meter main body 1, the slot 5 is used for inserting an electric card 2 into the electric meter main body 1 from the slot, a chip is fixedly arranged on one side of the electric card 2, a contact connected with the chip is arranged in the electric meter main body 1, a display screen is fixedly arranged on the front side of the electric meter main body 1 and used for displaying electric quantity and related parameters, an integrated circuit is fixedly arranged in the electric meter main body 1 and used for controlling internal components of the electric meter main body 1 to realize the basic functions of the plug-in type electric meter and carrying out data transmission with the electric card 2, and a power supply is arranged in the electric meter main body 1 and used for supplying power to the internal circuit of the electric meter main body 1 so as to ensure the normal operation of the electric meter main body 1;
in order to enable the electric card 2 to be quickly wiped and repaired when the poor contact condition is caused by the oxide layer at the chip of the electric card 2, continuous power failure caused by the fact that no wiper is found is avoided, and improvement is carried out in the slot 5 at the front side of the electric meter main body 1:
first, a direction in which the electric card 2 is inserted into the slot 5 is defined:
when the electric card 2 is inserted into the position where the chip is opposite to the contact, the chip of the electric card 2 is in contact with the contact inside the electric meter main body 1, and the forward insertion of the electric card 2 is defined at this time, and in the forward insertion state, the data transmission between the electric card 2 and the inside of the electric meter main body 1 can be realized, so that the charging process is completed (the insertion direction shown in fig. 3 is the forward insertion);
meanwhile, when the electric card 2 is inserted, the chip of the electric card 2 is deviated from the contact inside the ammeter main body 1, which is defined as reverse insertion of the electric card 2, and in the reverse insertion state, the electric card 2 cannot realize data transmission.
As shown in fig. 3, the card inserting assembly 4 is fixedly installed inside the electric meter main body 1, the card inserting assembly 4 not only can realize the function of fixing the position of the electric card 2 when the chip of the electric card 2 is inserted forward for charging and ensure the connection stability of the electric card 2 and the electric meter main body 1, but also can wipe the oxide layer on the chip of the electric card 2 when the electric card 2 is inserted backward, thereby simply repairing the chip of the electric card 2 and reducing the influence of the oxide layer generated on the surface of the chip on the contact performance of the chip of the electric card 2;
in order to facilitate the later maintenance of the plug-in card assembly 4 and the earlier installation, the electric meter main body 1 is provided with an installation opening, the plug-in card assembly 4 is installed at a working position through the installation opening, the end part of the installation opening is fixedly provided with a cover plate 3 through bolts, and the cover plate 3 can shield the plug-in card assembly 4 to prevent dust from entering.
As shown in fig. 7, the card inserting assembly 4 comprises a mounting part 6 fixedly connected with the electric meter main body 1, and a sliding positioning device mounted on the mounting part 6, wherein the mounting part 6 is of a box-shaped structure with an opening at one side, the opening is positioned at the same side position as the slot 5, and the sliding positioning device is used for guiding the electric card 2 to slide to a position communicated with the electric meter main body 1 and be fixed;
the sliding positioning device comprises a guide part 9 which is in sliding connection in the mounting part 6, one side of the guide part 9, which is close to the slot 5, is provided with a notch for inserting the electric card 2, the upper side and the lower side of the guide part 9 are fixedly provided with elastic pressing sheets 31, the elastic pressing sheets 31 are in a single-side fixed state, protrusions are locally arranged, the mounting part 6 is provided with positioning holes 30 matched with the elastic pressing sheets 31, and in an unpressed state, the protruding parts of the elastic pressing sheets 31 enter the positioning holes 30, so that the relative positions of the mounting part 6 and the guide part 9 are fixed;
when the elastic pressing piece 31 is in a matched state with the positioning hole 30, the notch at one side of the guide part 9 is in butt contact with the slot 5, so that the electric card 2 can directly enter the guide part 9 after passing through the slot 5, at the moment, the electric card 2 is at the initial position of the guide part 9, meanwhile, a displacement groove is formed in one side of the installation part 6, which is close to the positioning hole 30, and after the electric card 2 is inserted into the guide part 9, the guide part 9 and the installation part 6 can not shield a chip of the electric card 2;
when the electric card 2 is inserted into the guide part 9 through the slot 5, the electric card 2 is continuously pushed to the inner side of the electric meter main body 1, a flange is arranged at one end of the guide part 9 away from the slot opening, after the electric card 2 is contacted with the flange, pressure is applied to the guide part 9, so that the electric card is stressed to slide in the mounting part 6 in a direction away from the slot 5, when the guide part 9 slides, the position of the elastic pressing piece 31 is changed, the electric card 2 is pressed into the inner side of the mounting part 6 under the influence of the pressure of the side edge of the positioning hole 30, the elastic pressing piece 31 is stressed to deform and contact with the side surface of the electric card 2, and the extrusion force of the elastic pressing piece 31 is applied to the electric card 2, so that the relative position of the guide part 9 and the electric card 2 is fixed;
a mounting spring (not shown in the figure) is arranged between one end of the flange of the guide part 9 and one side, far away from the opening, of the mounting part 6, and the mounting spring is used for giving a sliding force to the guide part 9 in the direction of the slot 5, so that the guide part 9 can slide along with the electric card 2 when the electric card 2 is pulled out in an auxiliary manner;
the guide part 9 can be driven to slide in the mounting part 6 by holding the electric card 2, when the electric card 2 drives the guide part 9 to slide to the initial position again, the elastic pressing piece 31 is affected by self elasticity, the convex part of the elastic pressing piece enters into the positioning hole 30, so that the position of the guide part 9 is fixed, the electric card 2 also loses the extrusion force of the elastic pressing piece 31, and the electric card can be taken out freely;
as shown in fig. 7-9, in order to fix the position of the electric card 2 when it is inserted forward for data transmission, thereby improving the stability of connection, the sliding positioning device further comprises a stop lever 34 bearing-connected to one side of the guide part 9 far away from the notch, the stop lever 34 can rotate up and down around the connection with the guide part 9, a stop spring 35 is fixedly arranged between the side edge of the stop lever 34 rotating downward and the guide part 9, the stop spring 35 is used for giving the upward rotation force to the stop lever 34, a rubber pad 36 is fixedly arranged between the side edge of the stop lever 34 rotating upward and the guide part 9, the rubber pad 36 is used for limiting the rotation of the stop lever 34, the stop lever 34 is suitable for being in a horizontal position under the cooperation of the rubber pad 36 and the stop spring 35, and a stop shaft 37 is fixedly arranged at one end of the stop lever 34 far away from the guide part 9;
in order to prevent the card 2 from sliding at will to affect the stability of connection when the chip of the card 2 is in data transmission with the main body 1 of the electric meter, a matching unit is arranged on the mounting part 6 and is used for matching with the limiting shaft 37 to limit the sliding of the guide part 9 towards the direction of the slot 5;
the installation part 6 is provided with a sliding groove 10, the sliding groove 10 is connected with a sliding block 12 in a sliding way, a return spring 11 is arranged between the sliding block 12 and one end of the sliding groove 10, the return spring 11 is used for giving a force for the sliding block 12 to be far away from the matching unit, when the limiting shaft 37 is matched with the matching unit, the guide part 9 is contacted with the sliding block 12 and drives the sliding block 12 to slide for a certain distance, so that the return spring 11 is stressed and contracted, and elastic resistance is caused to the sliding of the guide part 9 in the direction far away from the slot 5 through the sliding block 12;
the matching unit comprises a guide block 32 and a stop block 33 which are fixedly connected with the mounting part 6, wherein the guide block 32 consists of a blocking part, a guide part, a groove part and a transition part, the blocking part is positioned at the right end of the guide block 32 and is positioned above the limiting rod 34 and used for supporting the guide part 9 to block the movement of the guide part 9, the guide part is a downward inclined plane and is in arc transition with the lower end surface of the blocking part, an obtuse angle is formed between the blocking part and the guide part, the guide part forms an inclined plane with gradually reduced height from right to left, the groove part is positioned at one end of the guide block 32 far away from the guide part 9, the position of the groove part is positioned below the limiting rod 34 and in arc transition with the lower side of the guide part, the transition part is an inclined plane positioned at the upper end of the guide block 32 and used for connecting and transitioning the upper side of the groove part, and the stop block 33 is positioned at one side of the groove part far away from the guide part 9;
as shown in fig. 10, when the electric card 2 is inserted to slide the guide part 9, and the limit rod 34 is driven to move to the position of the guide block 32, the limit shaft 37 is contacted with the guide part first, and as the guide part 9 continues to slide, the limit shaft 37 gradually rotates downwards along the sliding of the guide part, the limit spring 35 is stressed to shrink, and when the guide part 9 slides to contact with the blocking part, the guide part 9 cannot continue to slide, and at the moment, the limit shaft 37 passes over the lowest point of the guide part and is separated from the inclined surface of the guide part;
when the limiting shaft 37 is separated from the guide part and is upwards rotated under the influence of the elasticity of the limiting spring 35, the limiting shaft 37 is blocked by the stop block 33 in the rotation process and cannot be restored to the horizontal position, after the electric card 2 is released, the guide part 9 slides towards the direction close to the slot 5 under the influence of the elasticity of the sliding block 12, so that the limiting shaft 37 falls into the groove part and upwards rotates beyond the stop block 33, the limiting shaft 37 reaches the upper position of the stop block 33, at the moment, the limiting shaft 37 cannot rotate under the influence of the groove part, and the position of the guide part 9 is fixed by the cooperation of the limiting shaft 37 and the groove part through the elasticity of the sliding block 12, so that the electric card 2 fixed on the guide part 9 cannot be moved under the action of external force, and when the electric card 2 is in the position, the electric card 2 is communicated with the internal contact of the electric meter main body 1, and the stability of data transmission is improved;
when the electric card 2 needs to be pulled out, the electric card 2 is pushed to drive the guide part 9 to slide to the contact position with the blocking part, at the moment, the limiting shaft 37 is separated from the groove part and is influenced by the elasticity of the limiting spring 35, the limiting rod 34 rotates to be restored to the horizontal position, when the electric card 2 is pulled out again, the limiting shaft 37 contacts with the inclined surface of the transition part, the limiting rod 34 rotates upwards to press the rubber pad 36 under the guiding influence of the transition part on the limiting shaft 37 along with the pulling out of the electric card 2, the rubber pad 36 is pressed to deform, the limiting shaft 37 slides to the upper end of the blocking part through the transition part, and the limiting rod 34 is restored to the horizontal position under the influence of the elasticity of the rubber pad 36 after the limiting shaft 37 is separated from the guide block 32 continuously pulled out, so that the complete process of inserting, fixing and pulling out the electric card 2 is completed.
As shown in fig. 4, in order to conveniently wipe the oxide layer generated at the chip of the electric card 2, the card inserting assembly 4 further comprises a wiping roller 7 connected with a bearing on the mounting part 6, wherein the wiping roller 7 is positioned at one side of the mounting part 6 close to the cover plate 3, the wiping roller 7 is made of rubber material and is used for wiping the oxide layer on the chip of the electric card 2, the length of the wiping roller 7 can completely cover the chip of the electric card 2 to ensure the wiping integrity, a wiping window 8 is arranged on the mounting part 6, the wiping roller 7 is positioned in the range of the wiping window 8, the wiping roller 7 can directly contact with the surface of the electric card 2 through the wiping window 8, and when the electric card 2 is reversely inserted, the wiping action can be carried out on the oxide layer on the chip of the electric card 2 at the wiping window 8 through the wiping roller 7;
as shown in fig. 4-5, in order to improve the efficiency and the accuracy of wiping the oxide layer on the chip of the electric card 2, the card inserting assembly 4 further comprises a positioning wiping device, the positioning wiping device comprises a fixed plate 15 fixedly installed on the installation part 6, a gear 14 is connected to the upper side bearing of the fixed plate 15, the gear 14 is in transmission connection with the wiping roller 7, a rack 13 is connected to the fixed plate 15 in a sliding manner, the rack 13 is matched with the gear 14, and the right end of the rack 13 is fixedly connected with the sliding block 12;
when the electric card 2 is reversely inserted, the electric card 2 drives the guide part 9 to move in a direction away from the slot 5, when the guide part 9 slides to be in contact with the sliding block 12, the electric card 2 chip is in a primary contact position with the wiping roller 7 through the wiping window 8, when the sliding block 12 slides under the thrust of the guide part 9, the rack 13 fixedly connected with the sliding block is driven to slide to the right side, so that the rack 13 is matched with the gear 14 for transmission, the gear 14 drives the wiping roller 7 connected with the rack 13 to rotate, the rotation direction of the contact position of the wiping roller 7 and the electric card 2 chip is opposite to the sliding direction of the electric card 2, thereby effectively wiping an oxide layer on the electric card 2 chip through the wiping roller 7, after the electric card 2 chip slides through the wiping roller 7, the electric card 2 is pulled out again, and the sliding block 12 is driven by the elastic force of the reset spring 11 to drive the rack 13 to reversely slide, so that the rotation direction of the wiping roller 7 is changed, and the effective wiping of the electric card 2 chip can be ensured;
as shown in fig. 4-6, in order to prevent the wiping roller 7 from obstructing the sliding of the electric card 2 due to the contact with the surface of the electric card 2 when the electric card 2 is inserted in the forward direction or the chip of the electric card 2 does not reach the position of the wiping roller 7, the positioning wiping device further comprises a ratchet wheel 23 arranged at the lower end of the wiping roller 7, a matching block 25 is arranged in the gear 14, a ratchet 26 is slidably connected in the matching block 25, a matching spring 28 is fixedly arranged between the ratchet 26 and the matching block 25, and the ratchet 26 is matched with the ratchet wheel 23;
when the electric card 2 is inserted into the electric meter main body 1, the electric card 2 drives the guide part 9 to push the sliding block 12 to slide rightwards, the sliding block 12 drives the rack 13 to slide rightwards, at the moment, the gear 14 is meshed with the rack 13 to rotate, the ratchet 26 slides in the matching block 25 through the elasticity of the matching spring 28, so that the ratchet 23 continuously slides over, the wiping roller 7 cannot be influenced by the gear 14 to rotate, but can be influenced by friction force contacting with the surface of the electric card 2 to move in the same direction as the electric card 2, and cannot be influenced by resistance generated by reverse rotation of the wiping roller 7 when the electric card 2 is inserted forwards;
when the electric card 2 is pulled out, the rack 13 slides in the same direction with the electric card 2 under the drive of the slide block 12 to drive the gear 14 to rotate, at the moment, the ratchet 26 and the ratchet 23 enter a matched state, and the gear 14 rotates to drive the wiping roller 7 to rotate, so that the wiping action on the chip of the electric card 2 is not influenced when the electric card 2 is pulled out;
in order to enable the chip of the electric card 2 to be pulled out from the left side of the wiping roller 7, the sliding of the electric card 2 is affected by the wiping roller 7, so the rack 13 is a rack 13 with partial teeth, and when the sliding block 12 is positioned at the left end of the sliding groove 10 by the elastic force of the reset spring 11, the gear 14 and the rack 13 are not in an engaged state, so that the wiping roller 7 is in a free state, and the sliding of the electric card 2 is affected by the resistance of the wiping roller 7.
When the electric card 2 chip needs to be wiped and oxidized, the electric card 2 is reversely inserted into the ammeter main body 1 by hand, in the inserting process, after the guide part 9 is contacted with the sliding block 12, the elastic resistance of the reset spring 11 can be felt, so that the electric card 2 chip reaches the wiping position contacted with the wiping roller 7 through the hand feeling, the electric card 2 is continuously pushed, when the limiting shaft 37 is contacted with the guide part of the guide block 32, the limiting shaft 37 is continuously pushed to cause the limiting spring 35 to be extruded to rotate, the inserting resistance of the electric card 2 can be felt to be further increased, at the moment, the electric card 2 chip is completely passed through the wiping roller 7, the electric card 2 does not need to be continuously slid to the fixed position to immediately pull out the electric card 2, and the electric card 2 chip can be wiped through the wiping roller 7.
As shown in fig. 6, in order that the wiping roller 7 does not wipe the electric card 2 when the electric card 2 is inserted forward to perform fixed data transmission and the electric card 2 is pulled out, so the card inserting assembly 4 further comprises a wiping switching device, the wiping switching device comprises a matching groove 24 arranged in the gear 14, a matching block 25 is slidably connected with the matching groove 24, a tension spring 27 is arranged between the matching block 25 and the matching groove 24, the matching block 25 is in a position far away from the ratchet wheel 23 due to the influence of the tension spring 27, so that the ratchet wheel 26 is disengaged from the ratchet wheel 23, an electromagnet 29 is fixedly arranged at one end of the matching groove 24 close to the ratchet wheel 23, the matching block 25 is made of a magnetic material, a power supply unit is arranged on the fixing plate 15, the power supply unit is electrically connected with the electromagnet 29, and the matching block 25 is suitable for sliding to a position contacted with the electromagnet 29 under the electrifying state of the electromagnet 29, so that the ratchet wheel 26 is matched with the ratchet wheel 23;
the power supply unit can realize that after the electric card 2 is inserted in the forward direction to finish the fixed data transmission, the electromagnet 29 is powered off, and the gear 14 is separated from the transmission fit with the wiping roller 7, so that the normal extraction of the electric card 2 is not influenced;
the power supply unit comprises a sliding sleeve 16 fixedly arranged on a fixed plate 15, an adjusting shaft 17 is connected in the sliding sleeve 16 in a bearing way, the adjusting shaft 17 is coaxially fixed with a gear 14, a contact block 19 is connected in the sliding sleeve 16 in a sliding way, the contact block 19 is electrically connected with an electromagnet 29, a threaded section is arranged on the adjusting shaft 17, the contact block 19 is matched with the threaded section, a contact piece 18 is fixedly arranged in the sliding sleeve 16, and the contact piece 18 is electrically connected with a power supply;
a coil spring 22 is fixedly arranged between the fixed plate 15 and the adjusting shaft 17, when the contact block 19 slides downwards, the coil spring 22 gradually contracts, when the blocking part contacts with the guide part 9, the rack 13 slides to be disengaged with the gear 14, the adjusting shaft 17 is reversely reset and rotated by the elasticity of the coil spring 22, after the rotation is finished, the contact block 19 moves upwards to a position which is not contacted with the contact piece 18, and the electromagnet 29 is powered off;
the contact block 19 is suitable for being matched with the threaded section after the sliding block 12 overcomes the elastic force of the return spring 11 and slides downwards in the sliding sleeve 16, the contact block 19 contacts with the contact piece 18 when being matched with the threaded section, at the moment, the electromagnet 29 is electrified to slide through the magnetic attraction matching block 25, and the ratchet 26 and the ratchet wheel 23 enter a matching state;
if the guide part 9 does not move to the contact position with the blocking part, the electric card 2 can be pulled out, the wiping function of the chip of the electric card 2 can be realized, if the guide part 9 moves to the contact position with the blocking part, the electric card 2 starts to enter a position fixing state, the electric card 2 is inserted forward for data transmission, and the electric card 2 is not required to be wiped at the moment, so that the rack 13 is separated from the gear 14, the adjusting shaft 17 rotates under the influence of the coil spring 22, the contact block 19 moves upwards, the electromagnet 29 is powered off, and when the electric card 2 is pulled out again, the rack 13 is meshed with the gear 14 for transmission, the contact block 19 is always positioned on the upper side of the thread section and cannot contact with the contact piece 18 along with the clockwise rotation of the adjusting shaft 17 along with the gear 14, so that the electromagnet 29 is in a power-off state, and the ratchet 26 cannot enter into fit with the ratchet 23, so that the wiping function can not be carried out on the pulled-out electric card 2;
the sliding sleeve 16 is slidably connected with a pressing block 20, a pressure spring 21 is arranged between the pressing block 20 and the sliding sleeve 16, the pressure spring 21 is used for giving force for the pressing block 20 to downwards press the contact block 19, and downward pressure is applied to the contact block 19 through the pressing block 20, so that the contact block 19 can rapidly enter into fit with the threaded section when the adjusting shaft 17 rotates anticlockwise.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. An electric card plug-in type ammeter which is characterized in that: comprising the following steps:
the electric meter comprises an electric meter main body (1), wherein a slot (5) is formed in the electric meter main body (1), the slot (5) is used for inserting an electric card, a chip is arranged on the electric card, and a contact point which is contacted with the chip is arranged in the slot (5);
a card assembly (4), the card assembly (4) being mounted within the electricity meter body (1), the card assembly (4) comprising:
a mounting portion (6), the mounting portion (6) being mounted in the electricity meter main body (1);
the sliding positioning device is arranged on the installation part (6) and is used for guiding the electric card to slide to a position communicated with the electric meter main body (1) and fixing the electric card;
a wiping roller (7), wherein the wiping roller (7) is connected to the mounting part (6) in a bearing way, and the wiping roller (7) is used for wiping an oxide layer on the electric card chip;
wherein: the electric card is suitable for carrying out data transmission with the ammeter main body (1) when the chip and the contact are inserted in opposite directions and contacted, and the electric card is suitable for wiping and cleaning the chip by the wiping roller (7) when the chip and the contact are inserted in opposite directions and separated from each other.
2. An electric card plug-in electricity meter according to claim 1, wherein: the sliding positioning device comprises a guide part (9) which is in sliding connection with the mounting part (6), one side of the guide part (9) is provided with a notch for inserting an electric card, the guide part (9) is provided with an elastic pressing sheet (31), and the mounting part (6) is provided with a positioning hole (30) matched with the elastic pressing sheet (31);
wherein: the elastic pressing piece (31) is suitable for contacting the notch with the slot (5) when being matched with the positioning hole (30), and limiting the relative position of the electric card inserted into the notch and the guide part (9) when the elastic pressing piece (31) is disengaged from the positioning hole (30).
3. An electric card plug-in electricity meter according to claim 2, wherein: the sliding positioning device further comprises a limiting rod (34) connected to one side of the guide part (9) through a bearing, a limiting spring (35) is arranged between one side of the limiting rod (34) in the rotating direction and one end of the guide part (9), a rubber pad (36) is arranged between the other side of the limiting rod (34) in the rotating direction and the guide part (9), the limiting rod (34) is suitable for being positioned at a horizontal position under the action of the rubber pad (36) and the limiting spring (35), a matching unit is arranged on the mounting part (6), a sliding groove (10) is formed in the mounting part (6), a sliding block (12) is connected in the sliding groove (10), a reset spring (11) is arranged between one end of the sliding block (12) and one end of the sliding groove (10), and the reset spring (11) is used for giving a force away from the matching unit with the sliding block (12).
Wherein: the limiting rod (34) is suitable for being matched with the matching unit through rotation, the guiding part (9) is limited to slide towards the direction of the slot (5), and the sliding block (12) is used for causing elastic resistance to the sliding of the guiding part (9) towards the direction away from the slot (5).
4. An electric card plug-in electricity meter according to claim 3, wherein: a fixed plate (15) is arranged on the mounting part (6), a gear (14) is connected to the fixed plate (15) through a bearing, the gear (14) is rotationally connected with the wiping roller (7), a rack (13) is connected to the fixed plate (15) in a sliding manner, the rack (13) is matched with the gear (14), and one end of the rack (13) is fixedly connected with the sliding block (12);
wherein: when the guide part (9) slides to be in contact with the sliding block (12), the electric card chip is positioned at a preliminary contact position with the wiping roller (7), and when the sliding block (12) moves under the thrust of the guide part (9), the rack (13) is matched with the gear (14) for transmission.
5. An electric card plug-in electricity meter according to claim 4, wherein: a ratchet wheel (23) is arranged at the end part of the wiping roller (7), a matching block (25) is arranged in the gear (14), a ratchet (26) is connected in a sliding manner in the matching block (25), a matching spring (28) is arranged between the ratchet (26) and the matching block (25), and the ratchet (26) is matched with the ratchet wheel (23);
wherein: the ratchet wheel (23) is matched with the ratchet wheel (26) so that the wiping roller (7) is in a free state when the electric card is inserted, and the wiping roller (7) rotates along with the gear (14) when the electric card is pulled out.
6. An electric card plug-in electricity meter according to claim 5, wherein: the gear (14) is internally provided with a matching groove (24), the matching block (25) is in sliding connection with the matching groove (24), a tension spring (27) is arranged between the matching block (25) and the matching groove (24), the matching block (25) is influenced by the tension of the tension spring (27) to enable the ratchet (26) to be separated from the ratchet (23), the matching groove (24) is internally provided with an electromagnet (29), the matching block (25) is made of a magnetic material, the fixing plate (15) is provided with a power supply unit, the power supply unit is electrically connected with the electromagnet (29), and the matching block (25) is suitable for sliding to a contact position with the electromagnet (29) under the electrifying state of the electromagnet (29) so that the ratchet (26) is matched with the ratchet (23).
7. An electric card plug-in electricity meter according to claim 6, wherein: the power supply unit comprises a sliding sleeve (16) arranged on the fixed plate (15), an adjusting shaft (17) is connected in the sliding sleeve (16) through a bearing, the adjusting shaft (17) is coaxially fixed with the gear (14), a contact block (19) is connected in the sliding sleeve (16) in a sliding manner, the contact block (19) is electrically connected with the electromagnet (29), a threaded section is arranged on the adjusting shaft (17), the contact block (19) is matched with the threaded section, a contact piece (18) is arranged in the sliding sleeve (16), and one side of the contact piece (18) is electrically connected with a power supply;
wherein: the contact block (19) is suitable for being matched with the threaded section after the sliding block (12) slides against the elastic force of the return spring (11) and slides downwards in the sliding sleeve (16), and the contact block (19) is contacted with the contact piece (18) when being matched with the threaded section.
8. An electric card plug-in electricity meter according to claim 7, wherein: a coil spring (22) is arranged between the fixed plate (15) and the adjusting shaft (17).
9. An electric card plug-in electricity meter according to claim 7, wherein: the sliding sleeve (16) is connected with a pressing block (20) in a sliding mode, a pressure spring (21) is arranged between the pressing block (20) and the sliding sleeve (16), and the pressure spring (21) is used for giving force for the pressing block (20) to downwards press the contact block (19).
10. An electric card plug-in electricity meter according to claim 1, wherein: the wiping roller (7) is made of rubber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311205322.5A CN116959166B (en) | 2023-09-19 | 2023-09-19 | Electric card plug-in type ammeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311205322.5A CN116959166B (en) | 2023-09-19 | 2023-09-19 | Electric card plug-in type ammeter |
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| CN116959166A true CN116959166A (en) | 2023-10-27 |
| CN116959166B CN116959166B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311205322.5A Active CN116959166B (en) | 2023-09-19 | 2023-09-19 | Electric card plug-in type ammeter |
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Cited By (1)
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|---|---|---|---|---|
| CN117706150A (en) * | 2024-02-05 | 2024-03-15 | 佳木斯意合科技有限公司 | Plug terminal of ammeter and ammeter comprising same |
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| CN116959166B (en) | 2023-12-12 |
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