CN217239787U

CN217239787U - Card seat with detecting function

Info

Publication number: CN217239787U
Application number: CN202123255807.4U
Authority: CN
Inventors: 唐敏
Original assignee: Kunshan Changying Precision Technology Co ltd
Current assignee: Kunshan Changying Precision Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-08-19
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a cassette of function is listened in area, includes insulator, conductive terminal, listen the terminal, cover in metal casing on the insulator and pass through insulator and metal casing enclose the bearing space who establishes, listen terminal and the integrative stamping forming of conductive terminal and shaping in the insulator, insulator includes the base plate and certainly the lateral wall that the horizontal both sides of base plate upwards extend the formation sets up breach and installation department on at least one of them lateral wall, it is located to listen the terminal on breach and the installation department, it includes first terminal and the second of listening and listens the terminal to listen the terminal. The function of listening of function is listened in this application area is stable.

Description

Card seat with detecting function

Technical Field

The present application relates to the field of electrical connectors, and more particularly to a card socket with a detection function.

Background

Various electronic cards (e.g., SIM cards, memory cards, etc.) are widely used in electronic devices for communication, increasing storage capacity, etc. In most electronic devices, it is generally required to have a function of recognizing whether an electronic card is inserted into a card socket, so that a system can know the state in the card socket and adjust corresponding functions and services. The detection switches of the existing card holder are various, most of the detection switches are designed at the tail part, and the tail part design scheme can realize the switching function by adopting the contact and disconnection of an independent static terminal and a movable terminal; or the switch function is realized by directly utilizing the mode that the metal shell is punched to form the movable terminal, but the tail scheme has the problems of shorter length and smaller force arm, and the elastic force arm is easy to be degraded. There is also the detection terminal of design in horizontal outside, for example 201120264742.7 patent application of the people's republic of china discloses a cassette of area detection function, and this technical scheme makes the movable terminal contact quiet terminal in the deformation of horizontal direction through setting up, and this scheme is higher to the dynamics and the position requirement that the electronic card interfered the movable terminal, if the precision is not enough easily leads to contact failure or leads to being in contact state all the time and losing the switch function.

SUMMERY OF THE UTILITY MODEL

Therefore, it is desirable to provide a card socket with a detection function, which is stable and reliable and is not easy to fail.

In order to solve the above technical problem, the present application provides a card socket with a detection function, comprising an insulating body, a conductive terminal, a detection terminal, a metal shell covering the insulating body, and a bearing space enclosed by the insulating body and the metal shell, wherein the detection terminal and the conductive terminal are integrally formed by stamping and forming in the insulating body, the insulating body comprises a substrate and side walls extending upwards from two lateral sides of the substrate, at least one of the side walls is provided with a notch and an installation part, the detection terminal is located on the notch and the installation part, the detection terminal comprises a first detection terminal and a second detection terminal, the first detection terminal comprises a vertical part extending from the insulating body, a first elastic arm extending backwards after being turned inwards and vertically from the top of the rear end of the vertical part, and a wrapped part formed by being turned upwards from the rear end of the outer side of the first elastic arm, the second detection terminal comprises a second elastic arm and a contact end, the second elastic arm extends out of the insulating body and then extends forwards to form the second elastic arm, the contact end is formed at the free end of the second elastic arm, an insulating block extending into the bearing space is formed at the wrapped part, the outer part of the wrapped part is exposed out of the insulating block to form a first contact part, a second contact part is formed on the inner side surface of the contact end, the first contact part is positioned above the second contact part, and the projections of the first contact part and the second contact part in the vertical direction are at least partially overlapped.

Preferably, the conductive terminal and the detecting terminal are connected into a whole through a material belt, after injection molding, part of the material belt is cut off to electrically isolate the conductive terminal and the detecting terminal from each other, the vertical part of the first detecting terminal is formed by bending the outer edge of the material belt upwards vertically, and the second elastic arm of the second detecting terminal is formed by extending the outer edge of the material belt after bending the outer edge of the material belt upwards vertically.

Preferably, the first elastic arm of the first detection terminal includes a first arm portion formed by bending the top of the rear end of the vertical portion vertically inward and extending horizontally backward, and a second arm portion formed by extending the first arm portion obliquely backward and upward, and the wrapped portion is formed by bending the outer side of the second arm portion vertically upward and extending backward.

Preferably, the insulation block comprises a wrapping portion wrapping the wrapped portion, a pressing-down arc surface extending from the wrapping portion to the notch, and a hollow portion formed by hollowing the pressing-down arc surface.

Preferably, the substrate of the insulating body is in the edge of the notch position is formed with a limiting pillar in an upward protruding manner, the limiting pillar is located in the hollowed part, and the distance of pressing down the arc surface is controlled by the limiting pillar to avoid damage caused by excessive pressing down.

Preferably, the installation department includes certainly the base plate edge upwards protrudes the spacing wall, the strong point that form and dodges the groove, dodge the trench be located spacing wall with between the strong point, the lateral surface of spacing wall compare in dodge the lateral surface of groove department and lean on more interior, dodge the groove undercut so that its surface is less than the surface of strong point.

Preferably, the initial portion of the second arm portion of the first detection terminal is supported on the supporting point, the wrapped portion further includes a blocking piece extending downward, the blocking piece is limited outside the limiting wall, and the second arm portion is located above the avoiding groove.

Preferably, the inner side of the side wall is recessed downwards to form a step part, and a guide step matched with the step part is arranged on the outer side of the electronic card inserted into the bearing space in the transverse direction.

Preferably, the pressing arc surface comprises a first end and a second end, and the bottom of the first end is lower than the surface of the stepped part.

Preferably, the electronic card is an SD memory card.

This application area is listened cassette of function with first terminal and the second of listening and is listened the terminal set up in horizontal one side of cassette, the length in horizontal outside has increased the arm of force length of first listening terminal and has made it have better elasticity performance.

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 application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective assembly view of a card socket with a detection function according to the present application;

fig. 2 is a perspective view and a partial enlarged view of a conductive terminal and a detecting terminal of the card socket with a detecting function according to the present application;

fig. 3 is a perspective view and a partial enlarged view of the insulating body of the card socket with a detection function according to the present application;

fig. 4 is a perspective view and a partial enlarged view of the cassette with the detection function with the metal shell removed;

fig. 5 is a perspective view of the card seat with the detection function at another angle after the metal shell is removed and a partial enlarged view thereof;

fig. 6 is a perspective view of an electronic card loaded in the card socket with a detection function according to the present application.

Description of the reference numerals

Metal shell-10; a main body portion-11; a side portion-12; an insulator body-20; a substrate-21; a side wall-22; notch-23; a guide step-24; a limiting strut-25; a mounting portion-26; a limiting wall-261; support point-262; avoidance groove-263; a conductive terminal-30; a holding part-31; a solder tail-32; a resilient contact arm-33; a strip of material-34; a first detection terminal-41; a vertical portion-411; a first resilient arm-412; wrapped section-413; weld leg-414, 424; a flap-415; a first contact portion-416; an inflected section-417; a second detection terminal-42; an embedded part-421; a second resilient arm-422; a contact end-423; flare-425; a second contact portion-426; an insulating block-43; a wrapping section-431; pressing the cambered surface to 432; first end-4321; second end-4322; a hollowed-out portion-433; card withdrawing mechanism-50; an electronic card-60; a step-61; a gold finger-62.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments.

In the present application, the X direction shown in fig. 1 is taken as the front (i.e., card insertion end) in the longitudinal direction or the front-rear direction, the Y direction is taken as the lateral direction, and the Z direction is taken as the vertical direction.

Referring to fig. 1 to fig. 6, the card socket with the detection function of the present application includes an insulating body 20, a conductive terminal 30 integrally formed in the insulating body 20, a detection terminal, a metal shell 10 covering the insulating body 20, and a card ejecting mechanism 50 assembled on the insulating body 20. The insulating body 20, the metal housing 10 and the conductive terminals 30 enclose a carrying space S for carrying the electronic card 60.

Referring to fig. 6, the electronic card 60 preferably adapted to the card socket with the detection function of the present application is an SD memory card, and is also applicable to TF cards, SIM cards, and the like. When the electronic card 60 is preferably an SD memory card, the two lateral sides of the electronic card 60 are recessed upward to form step portions 61, and the front end of the bottom surface of the electronic card 60 is formed with a plurality of gold fingers 62 electrically contacting with the conductive terminals 30.

The metal case 10 includes a plate-shaped body 11 and side portions 12 formed by bending downward from both lateral sides of the plate-shaped body 11.

As shown in fig. 3, the insulating body 20 includes a base plate 21, sidewalls 22 formed by extending upward from two lateral sides of the base plate 21, a guiding step 24 formed at an inner edge of the sidewall 22 and having a surface higher than the surface of the base plate 21 and lower than the surface of the sidewall 22, and a notch 23 opened at one of the sidewalls 22.

The notch 23 refers to a cut-away portion of the side wall 22 so as to expose the base plate 21 laterally to the outside, and a limit pillar 25 is formed at the outer edge of the base plate 21 at the notch 23 in an upward protruding manner. Get rid of the front side of breach 23 lateral wall 22 is formed with installation department 26, both sides all with around installation department 26 lateral wall 22 does not connect to, installation department 26 includes spacing wall 261, the strong point 262 that upwards protrusion formed and dodges groove 263, it is located to dodge groove 263 spacing wall 261 with between the strong point 262, spacing wall 261's lateral surface compare in it more leans on the interior to dodge the lateral surface of groove 263 department, it is so that its surface is less than to dodge groove 263 undercut the surface of strong point 261.

As shown in fig. 2, the plurality of conductive terminals 30 and the insulating housing 20 are molded by injection molding in a mold, and each conductive terminal 30 includes a holding portion 31 embedded in the substrate 21, a solder leg 32 extending from the holding portion 31 to the outside of the insulating housing 20, an elastic contact arm 33 extending from the holding portion 31 to the inside of the carrying space S in an inclined and upward direction, and a material strip 34 connecting the plurality of conductive terminals 30 into a whole. The carrier tape 34 is partially cut away after injection molding to electrically isolate the plurality of conductive terminals 30 from each other.

Referring to fig. 2 to 5, the detecting terminals include a first detecting terminal 41 and a second detecting terminal 42 cooperating with the first detecting terminal 41. The first detecting terminal 41 and the second detecting terminal 42 are integrally formed with the conductive terminal 30 by stamping, and are connected to form a whole through the material belt 34, after the first detecting terminal 41 and the second detecting terminal 42 are integrally formed with the insulating body 30, the first detecting terminal 41, the second detecting terminal 42 and the conductive terminal 30 are electrically isolated from each other by cutting off a portion of the material belt 34.

The first detecting terminal 41 includes a vertical portion 411 formed by vertically bending from the lateral outer side of the material tape 34, a first elastic arm 412 formed by vertically turning over and extending from the top of the vertical portion 411, a wrapped portion 413 formed by turning over and extending from the free end of the first elastic arm 412 laterally and outwardly, and a soldering foot 414 formed by extending from the material tape 34. The vertical portion 411 is located at a disconnection position between the mounting portion 26 and the side wall 22 and is exposed outside, the first elastic arm 412 extends horizontally and backwards and then extends obliquely and backwards and upwards, and the wrapped portion 413 is formed by bending the free end of the first elastic arm 412 transversely and outwards and vertically and then extending backwards. The first elastic arm 412 includes a first arm (not numbered) bent inward from the vertical wall 411 and extending horizontally, and a second arm (not numbered) extending obliquely upward and rearward from the first arm. The starting point of the second arm is supported on the supporting point 262 to provide an elastic fulcrum, the second arm is located above the avoiding groove 263, and the wrapped part 413 is located outside the limiting wall 261 and the notch 23.

The wrapped portion 413 includes a blocking piece 415 vertically extending downward and being limited on the outer side of the limiting wall 261, and a first contact portion 416 formed on the outer side of the free end of the wrapped portion 413. The bottom side of the first contact portion 416 is bent inward to form an inward bent portion 417 which is inclined inward. An insulating block 43 is injection molded on the wrapped part 413, and the insulating block 43 comprises a wrapping part 431 wrapping part of the wrapped part 413, a downward pressing cambered surface 432 formed by protruding inwards, and a hollow part 433 formed by hollowing the lower part of the downward pressing cambered surface 432. The first contact portion 416 is exposed to an outer side surface of the wrapping portion 431, and a free end of the bent-in portion 417 is embedded in the wrapping portion 431. The pressing arc surface 432 comprises a first end 4321 and a second end 4322, and the lower edge of the first end 4321 is located below the surface of the guiding step 24, so that an electronic card can directly contact the pressing arc surface 432 when inserted, and cannot contact the first end 4321 to cause damage. The hollowed part 433 is partially located above the limiting pillar 25, and is limited by the limiting pillar 25 when the downward pressing arc surface 432 is pressed downward so as to prevent damage caused by excessive pressing.

The second detecting terminal 42 includes an embedded portion 421 connected to the carrier tape 34, a second elastic arm 422 formed by bending the outer side of the embedded portion 421 upwards and vertically and then extending forwards, and a contact end 423 formed at a free end of the second elastic arm 422. A second contact part 426 is formed on the inner side surface of the contact end 423, and the top of the contact end 423 is bent outwards to form an outward bent part 425. The first contact portion 416 and the second contact portion 426 correspond to each other and can be electrically connected, specifically, the inward bent portion 417 and the outward bent portion 425 are respectively bent in opposite directions to separate from each other and avoid interference, when the first elastic arm 412 is pressed down by the electronic card 60, the first contact portion 416 moves downward and finally electrically contacts with the second contact portion 426, the blocking piece 415 prevents the first contact portion 416 from being deflected inward to cause poor contact, and the second elastic arm 422 also has elasticity, so that the contact between the two portions can be more stable and reliable.

According to the card seat with the detection function, the first detection terminal 41 and the second detection terminal 42 are arranged on one lateral side of the card seat, and the length of the lateral outer side is increased by the length of the force arm of the first detection terminal 41, so that the card seat has better elastic performance; meanwhile, when the first detection terminal 41 is deformed downward, the first contact portion 416 enters the second contact portion 426 downward and presses the second elastic arm 422 outward, and the first detection terminal 41 and the second detection terminal 42 both have elastic arms, so that the contact stability is increased.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A card seat with detecting function comprises an insulating body, a conductive terminal, a detecting terminal, a metal shell covered on the insulating body and a bearing space formed by enclosing the insulating body and the metal shell, wherein the detecting terminal and the conductive terminal are integrally formed by punching and shaping in the insulating body, the insulating body comprises a substrate and side walls formed by upwards extending from two transverse sides of the substrate, at least one side wall is provided with a notch and an installation part, and the detecting terminal is positioned on the notch and the installation part and is characterized in that the detecting terminal comprises a first detecting terminal and a second detecting terminal, the first detecting terminal comprises a vertical part extending from the insulating body, a first elastic arm formed by inwards vertically turning over the top of the rear end of the vertical part and then backwards extending, and a wrapped part formed by upwards turning over the rear end of the outer side of the first elastic arm, the second detection terminal comprises a second elastic arm and a contact end, the second elastic arm extends out of the insulating body and then extends forwards to form the second elastic arm, the contact end is formed at the free end of the second elastic arm, an insulating block extending into the bearing space is formed at the wrapped part, the outer part of the wrapped part is exposed out of the insulating block to form a first contact part, a second contact part is formed on the inner side surface of the contact end, the first contact part is positioned above the second contact part, and the projections of the first contact part and the second contact part in the vertical direction are at least partially overlapped.

2. The socket with the detecting function as claimed in claim 1, wherein the conductive terminal and the detecting terminal are integrally connected by a strip, after injection molding, a portion of the strip is cut off to electrically isolate the conductive terminal and the detecting terminal from each other, the vertical portion of the first detecting terminal is formed by bending upward the outer edge of the strip, and the second elastic arm of the second detecting terminal is formed by bending upward the outer edge of the strip.

3. The socket with the detection function according to claim 2, wherein the first elastic arm of the first detection terminal includes a first arm portion formed by bending the top of the rear end of the vertical portion vertically inward and extending horizontally rearward and a second arm portion formed by bending the first arm portion obliquely rearward and upward and extending rearward, and the covered portion is formed by bending the outer side of the second arm portion vertically upward and extending rearward.

4. The socket according to claim 3, wherein the insulating member comprises a covering portion covering the covered portion, a depressed portion extending from the covering portion into the recess, and a hollowed portion formed by hollowing the depressed portion.

5. The socket of claim 4, wherein a limiting pillar is formed on the substrate of the insulating housing at the notch, the limiting pillar is located in the hollow portion, and a pressing distance of the pressing arc surface is controlled by the limiting pillar to prevent damage due to excessive pressing.

6. The socket according to claim 5, wherein the mounting portion includes a limiting wall, a supporting point and an avoiding groove protruding upward from the edge of the substrate, the avoiding groove is located between the limiting wall and the supporting point, an outer side surface of the limiting wall is more inward than an outer side surface of the avoiding groove, and the avoiding groove is recessed downward such that a surface thereof is lower than a surface of the supporting point.

7. The socket with the detection function according to claim 6, wherein an initial portion of the second arm portion of the first detection terminal is supported on the supporting point, the wrapped portion further includes a blocking piece extending downward, the blocking piece is limited outside the limiting wall, and the second arm portion is located above the avoiding groove.

8. The card socket with detecting function as claimed in claim 7, wherein the inner side of the sidewall is recessed downward to form a step portion, and the lateral outer side of the electronic card inserted into the carrying space is provided with a guiding step matching with the step portion.

9. The socket as claimed in claim 8, wherein the press-down surface includes a first end and a second end, and a bottom of the first end is lower than a surface of the step.

10. The socket with detection function as claimed in claim 9, wherein the electronic card is an SD memory card.