CN211907767U

CN211907767U - Contact device and card reader

Info

Publication number: CN211907767U
Application number: CN202020659852.2U
Authority: CN
Inventors: 刘强; 陈国衡
Original assignee: Tianteng Industrial Shenzhen Co ltd
Current assignee: Tianteng Industrial Shenzhen Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-11-10
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a contact device and card reader, wherein, this contact device includes cassette and spring contact pilotage, and the cassette has card end and stiff end of going into, goes into card end and is used for supplying the card to insert, and the stiff end is used for fixing the card, and spring contact pilotage locates the cassette, and spring contact pilotage includes spring body, pin and feeler pin, and the one end of spring body is located to the pin to extend to the bottom of cassette, the pin is used for being connected with the circuit board electricity, and the feeler pin locates deviating from of spring body one end to stretching out to the top slant of cassette, the setting of buckling towards the direction of this cassette is touched to the feeler pin protrusion behind the cassette, the kink of feeler pin is used for with the card butt, and touches the foot and is in the projected extending direction on cassette surface is the contained angle setting with. The technical scheme of the utility model the contact surface of card and the wearing and tearing of spring contact pilotage have been reduced to improve contact device's life.

Description

Contact device and card reader

Technical Field

The utility model relates to a card reader field, in particular to contact device and applied this contact device's card reader.

Background

The contact device of the existing card (IC card) usually comprises a base and a spring contact pin arranged on the base, when the card is inserted into the contact device, the contact surface of the card is abutted to the spring contact pin, so that the conduction between the card and a circuit board is realized through the spring contact pin, but the extension direction of the spring contact pin is consistent with the insertion direction of the card, so that the contact surface of the card and the spring contact pin are both subjected to large abrasion, and the service life of the contact device is shortened.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a contact device, which aims to reduce the wear of the contact surface of the card and the spring contact pin, so as to improve the service life of the contact device.

To achieve the above object, the present invention provides a contact device, including:

the card holder is provided with a card entering end and a fixed end, the card entering end is used for inserting a card, and the fixed end is used for fixing the card; and

spring contact pilotage, spring contact pilotage locates the cassette, spring contact pilotage includes spring body, pin and touches the foot, the pin is located the one end of spring body, and to the bottom of cassette is extended, the pin is used for being connected with the circuit board electricity, it locates to touch the foot spring body deviate from the one end of pin, and to the top slant of cassette stretches out, touch the foot protrusion in set up towards the direction bending type of this cassette behind the cassette, the kink that touches the foot is used for with the card butt, just it is in to touch the foot the projected extending direction on cassette surface with go into card end extremely the direction of stiff end is the contained angle setting.

In an embodiment of the present invention, the orientation of the projection of the contact pin on the surface of the card holder is defined, the extending direction of the fixed end is a first direction, the direction from the card-entering end to the fixed end is a second direction, and an included angle between the first direction and the second direction is α, so that the following condition is satisfied: alpha is more than or equal to 5 degrees and less than or equal to 15 degrees.

In an embodiment of the present invention, an included angle α between the first direction and the second direction is equal to 10 °.

In an embodiment of the present invention, the spring contact pin further includes a connection portion, one end of the connection portion is connected to the spring body, the other end is connected to the pin, and an extending direction of the connection portion and an extending direction of the pin are arranged at an included angle.

In an embodiment of the present invention, an extending direction of the connecting portion is consistent with an extending direction of the projection of the contact pin on the surface of the card seat.

In an embodiment of the present invention, the card seat is provided with a first surface and a second surface opposite to each other, the first surface has an installation groove, the second surface has a through hole communicated with the installation groove, the spring body is disposed in the installation groove, and the contact pin is protruded from the notch of the installation groove on the first surface, and the pin is disposed through the through hole and protruded from the second surface.

In an embodiment of the present invention, the mounting groove is inclined along the direction from the card-entering end to the fixed end.

The utility model discloses an in the embodiment, the contact device still includes the spring fixed axle, the connecting hole has been seted up to the cell wall of mounting groove, the spring fixed axle is worn to locate the connecting hole with the spring body, just the extending direction of spring fixed axle with go into card end extremely the direction of stiff end is the contained angle setting.

In an embodiment of the present invention, the card holder has two side walls oppositely disposed, two of the side walls are respectively located at two sides of the direction of the card-entering end to the fixed end, the contact device further includes a card holder fixing shaft, the card holder fixing shaft penetrates through the card holder along the direction of the side wall to the other side wall, at least one end of the card holder fixing shaft protrudes from the side wall for connecting with the card reader.

The utility model also provides a card reader, including contact device, this contact device includes:

The utility model discloses technical scheme is through adopting a contact device, this contact device passes through spring contact's pin and circuit board electricity and is connected, and make the kink and the card butt of touching the foot, the elastic force that utilizes spring contact itself realizes that spring contact is direct to switch on with card and circuit board, and make the direction that sets up of touching the foot (touch the projected extending direction on cassette surface promptly) and the direction of going into card end to stiff end be the contained angle setting, thereby avoid the situation that the direction that sets up of touching the foot and the pull out the direction unanimity of inserting of card, and reduce the contact surface of card and the wearing and tearing of spring contact, extension contact device's life. That is, the technical scheme of the utility model the wearing and tearing of the contact surface and the spring contact pilotage of card have been reduced, contact means's life has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a contact device according to the present invention;

fig. 2 is a partially exploded view of the contact assembly of the present invention;

fig. 3 is a partially exploded view of the contact assembly of the present invention;

fig. 4 is a top view of the contact device of the present invention;

fig. 5 is a cross-sectional view of the contact arrangement of the present invention;

fig. 6 is a schematic structural view of a spring contact in the contact device of the present invention;

the reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a contact device 100 aims at reducing the contact surface of card and the wearing and tearing of spring contact pilotage 20 to improve contact device 100's life.

Referring to fig. 1 to 6, in an embodiment of the contact device 100 of the present invention, the contact device 100 includes:

the card holder 10 is provided with a card inlet end 11 and a fixed end 12, wherein the card inlet end 11 is used for inserting a card, and the fixed end 12 is used for fixing the card; and

the spring contact pin 20 is arranged on the card holder 10, the spring contact pin 20 includes a spring body 21, a pin 22 and a contact pin 23, the pin 22 is arranged at one end of the spring body 21 and extends towards the bottom of the card holder 10, the pin 22 is used for being electrically connected with a circuit board, the contact pin 23 is arranged at one end of the spring body 21 deviating from the pin 22 and obliquely extends towards the top of the card holder 10, the contact pin 23 protrudes out of the card holder 10 and is bent towards the direction of the card holder 10, a bent part of the contact pin 23 is used for being abutted against a card, and the extending direction of the projection of the surface of the card holder 10 of the contact pin 23 is arranged at an included angle with the direction from the card entering end 11 to the fixed end 12.

In this embodiment, the card seat 10 is substantially a square structure. The fixed end 12 of the card holder 10 is provided with a baffle 70 towards the top of the card holder 10, and the card is inserted into the contact device 100 from the card-entering end 11 until the card is inserted into the fixed end 12, and the card is stopped from being inserted under the limiting action of the baffle 70, at this time, the card is fixed at the fixed end 12.

Further, in order to improve the stability of the spring contact pin 20 in use, the contact pin 23 is disposed to be inclined toward the card insertion end 11. Since the card is usually relatively slow when inserted, but when the card is pulled out, the user sometimes pulls out the card rapidly, and if the contact pins 23 are inclined in a direction away from the card insertion end 11, the spring contact pins 20 may be flipped over to affect the stability when pulling out the card rapidly.

The contact pin 23 comprises a first contact pin 23 and a second contact pin 23 which are arranged at an included angle, the joint of the first contact pin 23 and the second contact pin 23 (namely, the bending part of the contact pin 23) is a contact 231, and the contact 231 is arranged in an arc shape so as to reduce the friction between the contact surface of the card and the contact 231 and further reduce the abrasion to the card and the contact 231. The spring body 21 is a torsion spring wound spirally.

Therefore, it can be understood that, in the technical solution of the present invention, the contact device 100 is electrically connected to the circuit board through the pin 22 of the spring contact pin 20, and the bent portion of the contact pin 23 abuts against the card, the spring contact pin 20 is directly conducted with the card and the circuit board by using the elastic force of the spring contact pin 20, and the setting direction of the contact pin 23 (i.e. the extending direction of the projection of the contact pin 23 on the surface of the card holder 10) is set at an angle with the direction from the card-entering end 11 to the fixed end 12, because the card is firstly contacted with the inclined plane of the contact pin 23 facing the card-entering end 11 during the insertion process, and is finally abutted against the bent portion of the contact pin 23 by the inclined plane, the contact surface of the card has a plurality of metal sheets arranged in a strip shape, the metal sheets are arranged along the extending direction of the card, and a plastic substrate is arranged between two adjacent metal sheets, when the setting direction of the contact pin 23 is consistent with, after the card slides in from the card entering end 11 and contacts with the contact pin 23, the contact pin 23 always rubs against the metal sheet of the contact surface, and when the arrangement direction of the contact pin 23 forms an included angle with the direction from the card entering end 11 to the fixed end 12, after the card slides in from the card entering end 11 and contacts with the contact pin 23, the contact pin 23 first rubs against the plastic substrate of the contact surface, and during the moving process of the card, the contact pin 23 slides into the metal sheet from the side edge of the metal sheet and then rubs against the metal sheet, so that the friction distance between the contact pin 23 and the metal sheet is reduced, that is, the abrasion between the contact pin 23 and the card is reduced, and the service life of the contact device 100 is prolonged. That is, the technical solution of the present invention reduces the wear of the contact surface of the card and the spring contact pin 20, and improves the service life of the contact device 100.

Referring to fig. 4, in an embodiment of the contact device 100 of the present invention, the extending direction of the projection of the contact pin 23 on the surface of the card holder 10 toward the fixed end 12 is defined as a first direction, the direction from the card-entering end 11 to the fixed end 12 is defined as a second direction, and an included angle between the first direction and the second direction is α, then the condition is satisfied: alpha is more than or equal to 5 degrees and less than or equal to 15 degrees.

It can be understood that when the included angle between the first direction and the second direction is too large, the contact area between the card and the contact 231 of the contact device 100 is too small after the card is inserted into the contact device 100, which may easily result in poor contact between the card and the contact 231; when the included angle between the first direction and the second direction is too small, the effect of reducing the abrasion between the card contact surface and the contact 231 is not good. Therefore, the included angle between the first direction and the second direction is maintained at 5-15 degrees, the abrasion between the card contact surface and the contact 231 can be reduced, and the poor contact between the card and the contact 231 can be avoided.

Further, an angle α between the first direction and the second direction is 10 °.

It will be appreciated that in order to reduce wear between the card contact surface and the contacts 231 as much as possible whilst avoiding poor contact between the card and the contacts 231, it is preferred that the angle between the first and second directions is 10 °.

Referring to fig. 2, 5 and 6, in an embodiment of the contact device 100 of the present invention, the spring contact pin 20 further includes a connection portion 24, one end of the connection portion 24 is connected to the spring body 21, the other end is connected to the pin 22, and an extending direction of the connection portion 24 and an extending direction of the pin 22 are arranged at an included angle.

In this embodiment, the spring body 21, the pin 22, the contact pin 23 and the connection portion 24 of the spring contact pin 20 are integrally formed as a conductive structure, and the pin 22 is fixed to the circuit board by soldering.

It will be appreciated that in order to improve the stability of the use of the spring contact pins 20, the pins 22 are electrically connected to the spring body 21 using the connection portions 24.

Referring to fig. 2, 5 and 6, in an embodiment of the contact device 100 of the present invention, an extending direction of the connecting portion 24 is the same as an extending direction of a projection of the contact pin 23 on the surface of the card socket 10.

In this embodiment, a fixing platform is convexly disposed at the bottom of the mounting groove 13, and one side of the connecting portion 24 facing the bottom of the card socket 10 abuts against the fixing platform, so as to improve the stability of the connecting portion 24.

It will be appreciated that, in order to further improve the stability of the spring contact pin 20, the extension direction of the connecting portion 24 is made to coincide with the extension direction of the projection of the contact pin 23 on the surface of the card holder 10, and this arrangement also facilitates the mounting of the spring contact pin 20.

Referring to fig. 1 to 5 in combination, in an embodiment of the contact device 100 of the present invention, the card seat 10 is provided with a first surface and a second surface opposite to each other, the first surface is provided with a mounting groove 13, the second surface is provided with a through hole 14 communicated with the mounting groove 13, the spring body 21 is disposed in the mounting groove 13, and the contact pin 23 protrudes from the first surface through the notch of the mounting groove 13, and the pin 22 penetrates through the through hole 14 and protrudes from the second surface.

In this embodiment, the mounting grooves 13 are provided with a plurality of mounting grooves 13, and the mounting grooves 13 are provided with two rows, each row is provided with four mounting grooves 13, that is, eight mounting grooves 13 and eight through holes 14 are provided, and the bottom of each mounting groove 13 is provided with a through hole 14 communicated therewith. Eight spring contact pins 20 are provided, and one spring contact pin 20 is mounted in each mounting groove 13.

It can be understood that, in order to improve the installation stability of the spring contact pin 20 and the structural compactness of the contact 231 device 100, the spring body 21 is disposed in the installation groove 13, and the contact pin 23 protrudes from the notch of the installation groove 13 to the first surface, and the pin 22 is disposed through the installation groove 13 and protrudes from the second surface, so as to prevent the spring contact pin 20 from being exposed outside the card socket 10.

Further, the mounting groove 13 is disposed obliquely along a direction from the card insertion end 11 to the fixing end 12.

In the present embodiment, in order to better match the installation of the spring contact pin 20 to further improve the installation stability of the spring contact pin 20, the installation groove 13 is inclined in the direction from the card insertion end 11 to the fixed end 12.

Referring to fig. 2 and 5, in an embodiment of the contact device 100 of the present invention, the contact device 100 further includes a spring fixing shaft 30, a connecting hole 131 is formed on a wall of the mounting groove 13, the spring fixing shaft 30 is disposed through the connecting hole 131 and the spring body 21, and an extending direction of the spring fixing shaft 30 and a direction from the card entering end 11 to the fixed end 12 form an included angle.

In this embodiment, two spring fixing shafts 30 are provided, and each spring fixing shaft 30 is inserted into a spring body in the same row of spring contact pins 20.

It can be understood that the spring fixing shaft 30 is sequentially inserted through the connecting hole 131 and the spring body 21 so as to fix the spring body 21 in the mounting groove 13, so that the spring contact 231 is fixedly mounted in the card socket 10.

Further, the contact device 100 further includes two limiting shafts 50, each limiting shaft 50 is inserted into the mounting groove 13 in the same row, the end of the contact pin 23 of the spring contact pin 20 fixed in the mounting groove 13 is bent into the mounting groove 13 and forms a barb 232, and the barb 232 is fastened on the limiting shaft 50. Therefore, the spring body 21 and the contact pin 23 in the spring contact pin 20 are fixed in the mounting groove 13, so that the spring contact pin 20 is not turned over when the card is inserted and extracted, and the use stability of the spring contact pin 20 is further improved.

Of course, in other embodiments of the present invention, a limiting block may also be disposed on the groove wall of the mounting groove 13, so that the barb 232 is fastened to the limiting block. Similarly, the arrangement also enables the spring body 21 and the contact pin 23 in the spring contact pin 20 to be fixed in the mounting groove 13, so that the spring contact pin 20 is not turned over when the card is inserted and extracted, and the use stability of the spring contact pin 20 is further improved.

Referring to fig. 1 to 5, in an embodiment of the contact device 100 of the present invention, the card holder 10 has two side walls opposite to each other, the two side walls are respectively located at two sides of the direction from the card-entering end 11 to the fixed end 12, the contact device 100 further includes a card holder fixing shaft 40, the card holder fixing shaft 40 penetrates through the card holder 10 along the direction from one side wall to the other side wall, and at least one end of the card holder fixing shaft 40 protrudes out of the side wall for being connected with a card reader.

In this embodiment, the contact device 100 further includes a connecting rod 60, the connecting rod 60 may be a screw, a pin, or other connecting structure, the second surface is provided with a connecting groove 151 communicated with the fixing groove 15, the connecting rod 60 is inserted into the connecting groove 151 to abut against the holder fixing shaft 40, so as to fix the holder fixing shaft 40 in the fixing groove 15.

It can be understood that when the contact device 100 is applied to a card reader, the card holder fixing shaft 40 is sequentially inserted into the card reader and the card holder 10, and the card holder 10 can be conveniently and fixedly installed in the card reader by changing the clamp spring fixing mode into the connecting rod 60 fixing mode.

The utility model discloses still provide a card reader, this card reader includes contact device 100, and above-mentioned embodiment is referred to this contact device 100's concrete structure, because this card reader has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A contact arrangement, comprising:

2. The contact device according to claim 1, wherein an extending direction of a projection of the contact pin on the surface of the card holder toward the fixed end is defined as a first direction, a direction from the card-entering end to the fixed end is defined as a second direction, and an included angle between the first direction and the second direction is α, then a condition is satisfied: alpha is more than or equal to 5 degrees and less than or equal to 15 degrees.

3. A contact arrangement as claimed in claim 2, characterized in that the angle α between the first direction and the second direction is 10 °.

4. The contact arrangement as claimed in claim 1, wherein the spring contact pin further comprises a connecting portion, one end of the connecting portion is connected to the spring body and the other end is connected to the pin, and the extending direction of the connecting portion and the extending direction of the pin are arranged at an angle.

5. The contact arrangement as claimed in claim 4, characterized in that the direction of extension of the connecting portion coincides with the direction of extension of the projection of the contact pin on the surface of the holder.

6. The contact device as claimed in claim 1, wherein the socket has a first surface and a second surface opposite to each other, the first surface defines a mounting groove, the second surface defines a through hole communicating with the mounting groove, the spring body is disposed in the mounting groove, the contact pin protrudes from the first surface from the notch of the mounting groove, and the pin penetrates through the through hole and protrudes from the second surface.

7. The contact assembly of claim 6 wherein said mounting slot is angled in a direction from said card insertion end to said fixed end.

8. The contact device as claimed in claim 6, wherein the contact device further comprises a spring fixing shaft, a connecting hole is formed in a wall of the mounting groove, the spring fixing shaft penetrates through the connecting hole and the spring body, and an extending direction of the spring fixing shaft forms an included angle with a direction from the card inserting end to the fixing end.

9. The contact arrangement as claimed in any one of claims 1 to 8, wherein the card holder has two side walls facing away from each other, the two side walls being located on two sides of a direction from the card-entering end to the fixing end, respectively, the contact arrangement further comprising a card holder fixing shaft penetrating through the card holder in a direction from one side wall to the other side wall, at least one end of the card holder fixing shaft being arranged to protrude from the side wall for connection with a card reader.

10. A card reader, characterized in that it comprises a contact arrangement according to any of claims 1 to 9.