CN111326905B

CN111326905B - TF card seat

Info

Publication number: CN111326905B
Application number: CN202010243362.9A
Authority: CN
Inventors: 王惠君; 陈进嵩; 李群裕
Original assignee: Goldenconn Electronic Technology Co Ltd
Current assignee: Goldenconn Electronic Technology Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2024-09-10
Anticipated expiration: 2040-03-31
Also published as: CN111326905A

Abstract

The invention relates to a TF card seat, which comprises a TF card, an insulating body, a metal terminal, an outer housing, a sliding piece and a card locking mechanism. The metal terminal is fixedly connected with the insulating body and can be elastically propped against the TF. The sliding piece is clamped between the insulating body and the outer cover shell, is propped against the TF card under the action of the locking mechanism, and locks the TF position through the hooking protrusions on the sliding piece. The locking mechanism comprises a spring member and a crochet hook. The upper plane of the sliding piece is provided with a deflection chute. The insulation body is provided with a limit groove. The left end part of the crochet hook can be freely rotatably inserted into the limiting groove, and the right end part of the crochet hook can be freely and slidably arranged in the deflection chute. The right end part of the crochet hook is outwards bent to form a limiting section, and correspondingly, a limiting protrusion is inwards extended from the side wall of the limiting groove right above the limiting section. Thus, the crochet hook is effectively prevented from falling out of the deflection sliding groove.

Description

TF card seat

Technical Field

The invention relates to the technical field of portable electronic equipment manufacturing, in particular to a TF card seat.

Background

With the popularization of electronic products such as digital cameras, mobile phones, and PADs, the use of memory cards (e.g., TF cards, SIM cards, etc.) is becoming more and more widespread. The TF card seat is a plug connector matched with the TF card, and the contact of the TF card is realized through a metal terminal on the TF card seat. In the prior art, the TF card holder mainly comprises several parts such as TF card, insulator, metal terminal, outer housing and slider, and is provided with locking mechanism in order to the convenience of TF card locking and unblock aspect in general. Generally, the locking mechanism mainly comprises a spring member and a crochet hook, wherein the spring member is propped against between the insulating body and the sliding member so as to drive the sliding member to drive the TF card to translate and slide between the insulating body and the outer cover. The upper plane of the sliding piece is provided with a deflection chute. One end of the crochet hook can be freely rotatably inserted into the insulating body, and the other end of the crochet hook can be freely and slidably arranged in the deflection chute. However, during the practical application of TF cartridges it was found that: when the TF card is in the process of directional sliding in the insulating body, the crochet hook is very easy to deviate from the position-changing sliding groove, so that the function of the card locking mechanism is invalid, the smooth execution of the TF card locking and unlocking processes is influenced, and the experience of a customer is further influenced. Thus, a technician is required to solve the above problems.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the TF card seat with the structure for preventing the crochet hook from falling off from the position-changing chute, which has simple structural design and ensures smooth execution of TF card locking and unlocking operation.

In order to solve the technical problems, the invention relates to a TF card seat, which comprises a TF card, an insulating body, a metal terminal, an outer housing, a sliding piece and a card locking mechanism. An accommodating groove is formed in the upper plane of the insulating body so as to enable the TF card to be placed. The housing cover is combined right above the accommodating groove and fixedly connected with the insulating body. And the bottom wall of the insulating body is provided with an avoidance hole. The metal terminal is fixedly connected with the insulating body, and the free end of the metal terminal can pass through the avoidance hole to realize elastic propping with the TF card. The sliding piece is clamped between the insulating body and the outer cover shell and elastically abuts against the rear side wall of the TF card under the action of the card locking mechanism. The right end part of the sliding piece is provided with a hooking protrusion, and correspondingly, the rear side wall of the TF card is provided with a limiting notch matched with the hooking protrusion. The locking mechanism comprises a spring member and a crochet hook. The spring piece is propped between the insulating body and the sliding piece to drive the TF card to translate and slide along the left-right direction in the accommodating groove. The upper plane of the sliding piece is provided with a deflection chute. The insulation body is provided with a limit groove. The left end part of the crochet hook can be freely rotatably inserted into the limiting groove, and the right end part of the crochet hook can be freely and slidably arranged in the deflection chute. The crochet hook comprises a limit section. The limit section is formed by bending the left end part of the crochet hook laterally, and correspondingly, a limit bulge is extended inwards from the side wall of the limit groove right above the limit section.

As a further development of the solution according to the invention, an elastic pressure arm is provided on the outer jacket, which always presses elastically against the crochet hook.

As a further improvement of the technical scheme of the invention, the elastic pressure arm is directly punched from the top wall of the outer housing.

As a further improvement of the technical scheme of the invention, the insulating body is preferably a plastic part. In the injection molding process of the insulating body, the limiting groove is directly molded.

As a further improvement of the technical scheme of the invention, the insulating body comprises a clamping protrusion. The clamping protrusion is formed by continuously extending the front side wall and the rear side wall outwards, and correspondingly, clamping holes matched with the clamping protrusion are formed in the front side wall and the rear side wall of the outer housing.

As a further improvement of the technical scheme of the invention, the outer side wall of the clamping protrusion is inwards beveled to form a guide inclined plane.

Compared with a TF card seat with a traditional design structure, in the technical scheme disclosed by the invention, the limit section is arranged at the insertion end of the crochet hook, and the limit protrusion is arranged in the limit groove matched with the limit section. When locking and unlocking operations of the TF card are executed, the limiting projection reliably locks the limiting section in the limiting groove, so that the phenomenon that the crochet hook is separated from the limiting groove is effectively avoided, the crochet hook is always arranged in the shifting chute, and in the sliding process of the TF card, the crochet hook adaptively slides along the shifting chute, and further smooth execution of the locking and unlocking operations of the TF card is ensured.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a TF cassette according to the present invention.

Fig. 2 is an assembly schematic diagram of the TF cassette according to the present invention.

Fig. 3 is an assembly schematic view of the TF cassette of the present invention (with the outer casing removed).

Fig. 4 is an assembly schematic diagram of the TF card holder according to the present invention (excluding the outer casing and TF card).

Fig. 5 is a schematic perspective view of a crochet hook in a TF cassette according to the present invention.

Fig. 6 is a perspective view of an insulation body in a TF card base according to the present invention.

Fig. 7 is a perspective view of another view of the insulating body in the TF cassette of the present invention.

Fig. 8 is a partial enlarged view of I of fig. 7.

Fig. 9 is a schematic perspective view of an outer casing in the TF cassette of the present invention.

Fig. 10 is a front view of fig. 9.

Fig. 11 is a schematic perspective view of a sliding member in the TF cassette of the present invention.

Fig. 12 is a schematic perspective view of a TF card in a TF card seat according to the present invention.

1-TF card; 11-limiting notch; 2-an insulating body; 21-a receiving groove; 22-avoiding holes; 23-a limit groove; 231-limit protrusions; 24-clamping the bulge; 241-guiding ramp; 3-metal terminals; 4-an outer housing; 41-elastic pressure arms; 42-clamping holes; 5-sliding members; 51-hooking protrusions; 52-a deflection chute; 6-locking mechanism; 61-spring member; 62-crochet hook; 621-limiting section.

Detailed Description

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the following, the disclosure of the present invention will be further described in detail with reference to the specific embodiments, and fig. 1 and 2 respectively show an exploded schematic view and an assembly view of a TF card holder with a hook release preventing structure according to the present invention, which is mainly composed of a TF card 1, an insulating body 2, a metal terminal 3, an outer casing 4, a sliding member 5, a locking mechanism 6, and the like, wherein an accommodating groove 21 is provided on an upper plane of the insulating body 2 for accommodating the TF card 1 (as shown in fig. 6). The outer casing 4 covers the accommodating groove 21 and is detachably and fixedly connected with the insulating body 2. A relief hole 22 (shown in fig. 6) is formed in the bottom wall of the insulating body 2. The metal terminal 3 is fixedly connected with the insulating body 2, and the free end of the metal terminal can pass through the avoidance hole 22 to realize elastic propping against the TF card 1 (as shown in fig. 4). The sliding member 5 is sandwiched between the insulating body 2 and the outer casing 4, and elastically abuts against the rear sidewall of the TF card 1 under the action of the locking mechanism 6. A hooking protrusion 51 is provided at the right end of the slider 5, and correspondingly, a limit notch 11 (as shown in fig. 3, 11, and 12) adapted to the hooking protrusion 51 is provided on the rear sidewall of the TF card 1. The latch mechanism 6 includes a spring member 61 and a shackle 62. The spring member 61 abuts against between the insulating body 2 and the sliding member 5, so as to drive the sliding member 5 to drive the TF card 1 to translate and slide in the left-right direction in the accommodating recess 21 (as shown in fig. 4). A deflection slide groove 52 (shown in fig. 11) is provided on the upper plane of the slider 5. The insulating body 2 is provided with a limit groove 23 (as shown in fig. 6 and 7). The left end of the hook 62 is rotatably inserted into the limiting groove 23, and the right end thereof is slidably disposed in the displacement chute 52, thereby locking or unlocking the TF card 1.

It should be emphasized that the latch 62 includes a stop 621. The limiting segment 621 is formed by bending the left end of the latch needle 62 laterally (as shown in fig. 5), and correspondingly, a limiting protrusion 231 (as shown in fig. 7 and 8) extends from the side wall of the limiting groove 23 directly above the limiting segment 621. By adopting the technical scheme, the left end part of the crochet hook 62 is effectively prevented from moving in the height direction in the limit groove 23, the right end part of the crochet hook is always arranged in the displacement chute 52, and in the sliding process of the TF card 1, the crochet hook adaptively slides along the displacement chute 52, and further smooth execution of locking and unlocking operations of the TF card 1 is ensured.

Furthermore, as a further optimization of the above-mentioned solution, it is also possible to provide the outer casing 4 with an elastic pressing arm 41 which always presses elastically against the above-mentioned crochet hook 62 (as shown in fig. 1 and 9). By adopting the technical scheme, the hook needle 62 is effectively further prevented from 'jumping' along the height direction, and the limit section 621 is ensured to be always arranged in the limit groove 23.

The elastic pressing arm 41 is preferably directly punched out of the top wall of the outer shell 4 in view of optimizing the production process and reducing the manufacturing cost.

Further, the elastic pressing arm 41 is formed by two parts of an elastic bending section 411 and a flat pressing section 412, wherein the flat pressing section 412 is formed by directly extending back from the elastic bending section 411. In addition, the elastic bending section 411 is arranged inclined by 15 to 25 ° with respect to the horizontal plane, and ensures a certain floating amount corresponding to the outer case 4, and has a proper elasticity (as shown in fig. 9, 10) for the purpose of stabilizing the presser section 412 against the crochet hook 62.

Also, the insulating body 2 is preferably a plastic injection-molded part in view of reducing the manufacturing cost. And in the injection molding process of the insulating body 2, the limit groove 23 for inserting the crochet hook 62 is directly formed, so that the groove milling process after the insulating body 2 is formed is omitted.

Further, the insulating body 2 may be provided with a locking protrusion 24. The locking protrusion 24 is formed by continuously extending the front and rear side walls of the insulating body 2 outwards, and correspondingly, locking holes 42 (as shown in fig. 2, 6, 7 and 9) adapted to the locking protrusion 24 are formed on the front and rear side walls of the outer casing 4. In this way, the outer cover 4 can be easily and quickly disengaged from and engaged with the insulating body 2 by changing the relative positional relationship between the engaging protrusion 24 and the engaging hole 42, and the assembly time is effectively shortened. Of course, as a further optimization of the above-described technical solution, the outer side wall of the above-described snap projection 24 may be beveled inward to form a guide slope 241 (as shown in fig. 6), thereby ensuring that the snap projection 24 is smoothly fitted into the snap hole 42.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A TF card seat comprises a TF card, an insulating body, a metal terminal, an outer housing, a sliding piece and a card locking mechanism; an accommodating groove is formed in the upper plane of the insulating body so as to allow the TF card to be placed in; the housing cover is covered right above the accommodating groove and fixedly connected with the insulating body; the bottom wall of the insulating body is provided with an avoidance hole; the metal terminal is fixedly connected with the insulating body, and the free end of the metal terminal can penetrate through the avoidance hole to realize elastic propping against the TF card; the sliding piece is clamped between the insulating body and the outer cover shell and elastically abuts against the rear side wall of the TF card under the action of the card locking mechanism; a hooking protrusion is arranged at the right end part of the sliding piece, and correspondingly, a limit notch matched with the hooking protrusion is formed in the rear side wall of the TF card; the locking mechanism comprises a spring piece and a crochet hook; the spring piece is propped against between the insulating body and the sliding piece so as to drive the sliding piece to drive the TF card to translate and slide in the accommodating groove along the left-right direction; a deflection chute is arranged on the upper plane of the sliding piece; a limit groove is formed in the insulating body; the left end part of the crochet hook can be freely rotatably inserted into the limiting groove, and the right end part of the crochet hook can be freely slidably arranged in the shifting chute; the limiting section is formed by laterally bending the left end part of the crochet hook, and correspondingly, a limiting protrusion is extended inwards from the side wall of the limiting groove right above the limiting section;

An elastic pressing arm is arranged on the outer housing and is always elastically pressed against the crochet hook; the elastic pressing arm is composed of an elastic bending section and a flat pressing section, wherein the flat pressing section is formed by directly and backwardly extending the elastic bending section, the elastic bending section 411 is inclined 15-25 degrees relative to the horizontal plane,

The insulating body is a plastic part; in the injection molding process of the insulating body, the limit groove is directly molded.

2. The TF cassette according to claim 1, wherein said resilient pressure arms are directly blanked out of the top wall of said outer casing.

3. The TF cassette according to claim 1, wherein the insulating body comprises a clamping protrusion; the clamping protrusion is formed by continuously extending the front side wall and the rear side wall of the clamping protrusion outwards; correspondingly, clamping holes matched with the clamping protrusions are formed in the front side wall and the rear side wall of the outer housing.

4. A TF cassette according to claim 3, wherein the outer side walls of the snap-in protrusions are beveled inwardly to form a guiding bevel.