TW574773B - Connector device for cards - Google Patents

Description

574773 ⑴ 发明, description of the invention (the description of the invention should state: the technical field to which the invention belongs, the prior art, the content, the embodiments, and the simple description of the drawings) The device is used to install a memory card with ic etc. [Prior art] In general, as shown in FIG. 13, a connector device for a card for mounting a small memory card is provided with a resin case, and in the case i is provided with a memory card 2 inserted therein. And a plurality of terminals 5 which are in contact with each contact portion 4 of the memory card 2 inserted in the card insertion portion 3. A metal case 6 covering the card insertion portion 3 is mounted on the case 1, and a part of the case 6 is soldered to the ground pattern of the circuit board 7. And if the memory card inserted into the card insertion part is static, or the operator who inserts the card is static, "static electricity will be discharged from the contact part of the card to the case when the memory card is inserted or inserted. However, the past Since the shortest distance from each contact to the case is the same, it is impossible to know which contact is discharged to the case. When discharging from the ground contact, it will not affect the memory card. Circuit, but if the signal is discharged from the signal contact, there may be thousands to 10,000 volts on the circuit signal line in the memory card, destroying the 1C in the card or the data recorded in the memory. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a card connector device having a metal case, which can prevent damage to circuits and the like in a card when a static-charged card is inserted. (2) Invention Explain the continuation page ,,, and the means to solve the problem: ==: The card of the scope of patent application of the present invention is the first item " The card insertion part of the film is condensed, and each contact part of the card inserted into the card insertion part has H connection terminals, which is characterized by: provided with a metal shell connected to the ground to cover the card insertion 1 "circuit, And each contact is at least

There is a grounding contact and a signal contact. Inside the metal case: there is a static electricity prevention means. The shortest distance from the contact part of the card that is inserted in the card to the person is greater than the distance from The shortest distance between the ground contact and the case. The card connector connector device in the scope of the patent application No. 2 of the present invention is characterized in that the contact portions are arranged side by side in a direction perpendicular to the card insertion direction. The contact at both end sides of the contact portions arranged side by side. unit

: Turn: ㈣contact section, #electrical prevention means is configured such that the upper surface of the case and the 乂 are in the card insertion path, and the area facing the two ground contact sections protrudes upward. A card connector device according to item 3 of the scope of patent application of the present invention is characterized in that its contact portions are arranged side by side in a direction perpendicular to the card insertion direction, and the contact portions in the side-by-side contact portions are arranged side by side. The contact parts for the grounding of the contact material on both sides, and the static electricity prevention means is configured such that the upper part of the casing is provided with protruding parts corresponding to the two grounding contact parts and protruding inward, so that each of the protruding parts and the two grounds are grounded. The shortest distance with the contact is shortened. The connector device for a card of the present invention in the scope of patent application No. 4 has the following characteristics:-(3) (3) 574773 The description of the continuation page is that each contact portion is arranged side by side in a direction perpendicular to the card insertion direction. In the direction, the contact portions located at both ends of the side-by-side contact portions are grounding contact portions, and the static electricity prevention means is inserted into a case facing the two grounding contact portions of the card in the insertion start state. The mouth-side edge portion forms a notch. [Effect of the Invention] According to the invention according to item 1 of the patent application scope of the present invention, since the electrostatic prevention means is provided on the casing, the shortest distance from the signal contact portion of the card to the casing is greater than the shortest distance from the ground contact portion to the casing. Therefore, even if the card V is static, static electricity is often discharged from the grounding contact portion to the casing. Therefore, a high voltage is not generated on a circuit signal line in the card when static electricity is discharged, and the circuit or the like in the card can be prevented from being damaged. According to the invention according to the second aspect of the patent application of the present invention, since the upper part of the case facing upward between the two grounding contact portions located on both ends of the card in the insertion path is projected upward, the static electricity carried by the card is The inserted melon in the card is often released from the ground contact portion to the housing. Therefore, during the insertion process, static electricity will not be released from the signal contact portion of the card to the housing, which can prevent the circuit and the like in the card from being damaged. According to the invention in the third scope of the patent application of the present invention, corresponding to the two grounding contact portions located on both ends of the card, a jack is provided on the casing to shorten the shortest distance between the peripheral device and the grounding contact portion. Therefore, when inserting a card, making the card static can also release static electricity from the grounding contact to the case. Therefore, when the static electricity is discharged, the same voltage will not be generated on the circuit signal lines in the card, preventing the circuit in the card, etc. destroyed. (4) (4) 574773

According to the invention in claim 4 of the scope of patent application of the present invention, the recess σ is formed on the insertion side edge portion of the card opposite to the grounding contact portions on the both ends of the card in the insertion start state, and it is charged with static electricity when inserted. In the case of a card, static electricity is often discharged from the ground contact portion to the insertion side edge portion of the housing. Therefore, a high voltage is not generated on a circuit signal line in the card during static discharge, and the circuit or the like in the card is prevented from being damaged.

[Brief Description of the Drawings J] Fig. 1 is an overall plan view showing a card connector device according to a second embodiment. Fig. 2 is an overall front view showing a card connector device according to a first embodiment. FIG. 3 is a plan view showing a state where a case is removed according to the first embodiment. FIG. Fig. 4 is an overall side view showing a card connector device according to an i-th embodiment. Figure 5 shows the first! 5 is a cross-sectional view taken along the line 5 in FIG. 1 of the embodiment. Figure 6 shows the first! A sectional view taken along the line 6-6 in FIG. 1 according to the embodiment. Fig. 7 is a cross-sectional view taken along line 7-7 in Fig. 1 according to the first embodiment. FIG. 8 is a side cross-sectional view showing a card mounting state according to the} th embodiment. Fig. 9 is a plan view showing a notch portion (third static electricity prevention means) according to the first embodiment. Fig. 10 is a rear view showing a case of a protruding portion (first static electricity preventing means) according to the first embodiment. FIG. 11 is a plan view showing a case according to a second embodiment. FIG. 12 is a sectional view taken along line 12-12 in FIG. 11 according to the second embodiment. -8-(5) Hair opening Fig. 13 is a sectional view showing an example of the prior art. [Embodiment] An embodiment of a card connection as a device for implementing the present invention will be described in detail with reference to Figs. 1 to 12 '. < First embodiment > First, a description will be given of the components mounted in the card connector device of the first embodiment.

Card: As shown in Fig. 8 and Fig. 10, the card 10 has a rectangular shape, and its structure is connected with a circuit board (not shown) inside the resin gas container U, and the circuit board is installed with a 1C and the like that constitute a hidden body. A plurality of contact portions 12 ′ are arranged below the front end portion of the card 1G as shown in FIG. 在. Among the contact portions 12, the contact portions 12 on the left and right ends (the upper and lower ends) are contact portions 12a for grounding. The contact portion 12 in the center is a power transfer contact portion 12b, and the other contact portions 12 are signal contact portions 12c. The card connector device of the first embodiment is shown in FIGS. 1-4, and has a resin case 20 and A metal case 22 covering the case.

Inside the case 20, a card insertion portion 2m for inserting the card 10 and terminals U which are respectively in contact with the plurality of contact portions 12 of the card 10 are provided inside the card insertion portion. The card insertion portion 21 is formed in a square concave shape on the upper surface, and has a card insertion opening 21a on the right side in FIG. 3. Further, as shown in Fig. 5, the guide surfaces 21b and 21b are formed on the left and right inner wall surfaces. For guiding the card 10 to the insertion position. As shown in FIG. 3, each of the terminals 23 is formed of an elongated elastic piece. Seven terminals are arranged side by side in a direction perpendicular to the card insertion direction in a state where the front end portion thereof projects into the card insertion portion 21. Contacts for contacting the contact portions 12 of the card 10 are formed on the front end portions of the terminals 23, and the end portion on the 574773 side opposite to the front end portion extends from the rear end portion (left end portion in FIG. 3) of the case 20 to It is drawn out later and soldered to the circuit pattern of the circuit board 24. Of the terminals 23, the two terminals 23 on the left and right sides (the upper and lower ends in FIG. 3) are ground terminals 23 & the centrally located terminal 23 is a power terminal 23b, and the other terminals 23 are signal terminals 23c. As shown in FIG. 5, the case 22 is formed by bending a metal plate into a door shape on the front side to cover the upper surface of the card insertion portion 21, and the left and right side plates are arranged along the left and right outer sides of the case 20. In the lower edge portions of the left and right side plates, as shown in the jade, a total of 4 locations on the front and rear ends (the left and right ends in FIG. 1) project along the mounting surface of the circuit board 24 at a right angle. 22a is soldered to the ground pattern of the circuit board 24. The other edge portions of the peripheral device 22 have their left and right edge portions extending forward, and at the same time, their upper edge portions extending obliquely upward. As shown in FIG. 2, the plastic opening and closing door 25 is supported between the left and right side plates. And can turn. The opening and closing door 25 is formed in a horizontal rectangular shape that blocks the card insertion opening 21a, and the rotation shafts 25a, 25a are protruded and formed at the left and right edge portions. Within 22b. In addition, in Fig. 2, the torsion coil spring 26 is attached to the left rotation shaft 25a in front view, and the door 25 is always opened and closed due to the force. The casing 22 is further provided with a first static electricity preventing means 30, a second static electricity preventing means 40, and a third static electricity preventing means 50. As shown in FIGS. 1, 4, and 5, the first static electricity preventing means 30 is configured such that a central region of the upper surface of the casing 22 is convex upward. As shown in FIG. 5, the left edge portion 3 a of the protruding portion 31 is located at a position substantially the same as the extension line described below or slightly outward from the position 574773

(Left in FIG. 5), the extension line refers to a line extending upward from the left edge of the left-side ground contact portion 12a of the contact portion 12 of the card 10 in the insertion path from the signal The shortest distance A1 from the contact portion 12c to the case 22 is greater than the shortest distance a2 from the ground contact portion 12a to the case 22. The right edge portion 3 lb of the protruding portion 31 is also the same as the above-mentioned left edge portion 3 la, and is located at substantially the same position as the extension line described below or slightly outward (rightward in FIG. 5) from this position. In the above, the extension line refers to a line extending upward from the right edge of the right-side ground contact portion i2a of the contact portion 12 of the card 10 in the insertion path, and the shortest path from the signal contact portion 12c to the housing 22. The distance A1 is greater than the shortest distance A2 from the ground contact portion 12 a to the case 22. Further, as shown in FIG. 7, at least to a position where the card 10 is inserted and the ground contact portion 12 a comes into contact with the ground terminal 23 a, the shortest distance A1 from the signal contact portion 12 c to the housing 22 is greater than The shortest distance A2 from the ground contact portion 12a to the case 22 extends toward the back. As shown in Figs. 6 and 7, the second static electricity prevention means 40 is formed by forming the left and right end faces of the inclined surface of the upper end portion of the upper case 22 with indentations protruding inward. These protrusions 41 and 41 protrude until they come into contact with the upper surface of the inserted card 10, and are respectively formed at the same position as an extension line or slightly outside the position (a protrusion on the left side) 4 i is to the left; to the right of the protruding portion 41 to the right), the extension line refers to the outer edge portion of each ground contact portion 12a (to the left ground contact portion 12a is the left edge portion) The right-side ground contact portion 12 a is a line extending upward. That is, in a state where the card 10 is inserted, and each of the contact portions 丨 2 comes directly below each of the protrusions 41, the contact from the protrusions 41 to the ground contact 574773

The shortest distance B2 of the portion 12a is smaller than the shortest distance B1 from each signal contact portion i2c to the housing 22. As shown in Figs. 1 and 9, the third static electricity prevention means 50 is formed with a square cutout in the front edge portion of the case 22. The left and right edge portions 51a, 51 of the notched portion 51 are in the same position as an extension line or slightly outward (the left edge portion 5; ^ is the left surface; The right edge portion 51b is on the right side), and the extension line refers to the outer edge portion of each of the ground contact portions i2a on the left and right end sides (upper and lower end sides in FIG. 9) of the card 10 in the insertion start state. (The left ground contact portion 12a is the left edge portion, and the right ground contact portion 12a is the right edge portion.) The extended line extends from each signal contact portion 12c in the insertion start state to the leading edge of the housing 22. The shortest distance C1 of the portion is larger than the shortest distance C2 from each of the ground contact portions} 2 a to the front edge portion of the case 22. Further, in the insertion start state where the card insertion is started, the card 10 is guided by the opening edge portion of the insertion port 27 provided in the box body in which the card connector device according to the embodiment of the present invention is assembled. The relationship between the shortest distance θ1 of the signal contact portion 12c from the front edge portion of the case 22 and the shortest distance C2 from the ground contact portion 12a to the front edge portion of the case 22 remains unchanged. The function of this embodiment will be described below. When a static-charged card 10 or a static-charged operator inserts the card 10 and brings the card 10 close to the card insertion opening 21a, the signal contact portions 12c of the card 10 The shortest distance ci to the case 22 is greater than the shortest distance C2 from each ground contact 12a to the case 22, so static electricity will not be released from the signal contact 12c to the case 22, but will be released from the ground contact 12a to the case. 22 on (see Figure 9). -12- (9) Howling Next, ‘if the card 10 is inserted into the card insertion opening 21a and pushed inward’, each of the protrusions 41 is in contact with the upper surface of the card 10. Here, since the shortest distance B2 from each ground contact portion 12a to the protruding portion 41 is smaller than the shortest distance B1 from each signal contact portion 12c to the case 22, the above-discharged static electricity is discharged from the ground contact portion 12a to the protruding portion. 41 on (see Figure 6). Furthermore, push the card 10 inside and install it in the insertion position (see Figure 8). Here, the upper surface of the housing 22 protrudes, and in the inserted path, the shortest distance from each signal contact 12c to the housing 22 is greater than the shortest distance A2 from each ground contact 12a to the housing 22, so the above-mentioned The discharged static electricity is not released from the signal contact portion 12c to the case 22, but is discharged from the ground contact portion 12a to the case 22 (see FIG. 5). In this way, in the above-mentioned embodiment, the notch portion 51 is formed at the front edge portion of the casing 22. When the card is inserted, the static electricity carried by the card 10 is often discharged from the ground contact portion 12a to the casing 22, so that it can prevent The static electricity is discharged and a high voltage is generated on the circuit pseudo-signal line in the card, and the memory or data in the card 10 is destroyed. In addition, in the insertion path of the card 10, since each of the protrusions 41 is in contact with the upper surface of the card 10, the static electricity carried by the card 10 is discharged to each of the protrusions w, so no static electricity is caused in the insertion path due to the discharge of static electricity. A south pressure is generated on the circuit L line in the card ι〇, which can prevent the 匸 匸 in the card 丨 0 or the memory data from being destroyed. Furthermore, since the upper surface of the case 22 is protruded, the static electricity carried by the card 10 is discharged to the case 22 from the ground contact portion 12a. Therefore, the static electricity will not be transmitted from the signal contact portion 12c when the card reaches the insertion position. Release to the case 22 • 13-574773 (10) 'It can prevent high voltage from being generated on the signal line inside the card 1 ο, causing damage to the IC or memory data. < Second Embodiment > The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. As shown in Figs. 11 and 12, in the case 22 of the second embodiment, as the antistatic means 60, left and right end portions are formed with projecting portions 6 1 and 61 facing each other inwardly. Each of the protruding portions 61 is formed in a protruding shape so as to contact the upper surface of the inserted card 10, and the protruding portion 61 on the left side in FIG. 12 of each protruding portion 61 is a right edge portion 61a and a protruding portion on the right side. 61 is the left edge 6 lb), 6 lb is located at the same position as an extension line, or slightly to the outside. This extension line refers to the ground contact portion 12a of the card 10 in the insertion path. A line extending upward from the outer edge portion (the left edge portion in the ground contact portion 12 a on the left side and the right edge portion in the ground contact portion 12 a on the right side). The shortest distance D1 from each of the signal contact portions 12c located in the insertion path to the case 22 is greater than the shortest distance D2 from each ground contact portion 2a to each of the protruding portions 61. In addition, each of the protruding portions 61 extends at least until the card 10 is inserted, and the ground contact portion 12a starts to contact the ground terminal 23a at a position where the shortest distance d from the signal contact portion 12c to the housing 22 is extended. 1 is greater than the shortest distance D2 from the ground contact portion 12 a to the case 22. In this way, since the shortest distance D 1 from each signal contact portion 12c in the insertion path to the housing 22 is greater than the shortest distance D2 from each ground contact portion i 2a to each protruding portion 61, 'there is a card in the insertion path' The static electricity carried by 10 will not be discharged from the signal contact portion 12c to the casing 22, but will always be discharged from the ground contact -14-574773 mmmm portion 12a to the casing 22. Therefore, in the path of inserting and inserting the card 10, it is prevented that a high voltage is generated on the circuit ^ ik on the card 10 due to static electricity, and the 1C and memory data in the card 10 are destroyed. In addition, the present invention is not limited to the above-mentioned embodiments. For example, the following embodiments may be changed. The remaining embodiments also belong to the technical scope of the present invention. (1) In the above-mentioned first embodiment, the method of measuring the constitution of the "static prevention means" is to project the central region of the upper surface of the casing 22, but the region may be cut to form an opening. (2) In the above-mentioned first embodiment, before the ground contact portion m of the card 1Q starts to contact the ground terminal 23a, the protruding portion "inwardly extends from the signal contact portion 12c to the housing 22". The shortest distance A 丨 is longer than the shortest distance A2 from the ground contact portion 12a to the housing 22. However, the shortest distance A1 may be further extended inwardly or may be shortened toward the front side (card insertion opening side). (3) In the first embodiment described above In the method, the first static electricity prevention means 30, the second static electricity prevention means 40, and the third static electricity prevention means 50 are provided on the casing 22. However, at least one of the first, second, and third static electricity prevention means may be provided. In addition, various changes can be made to the embodiment without departing from the gist of the present invention. Symbols and Symbols Description 10 Card 12 Contact 12a Ground Contact 12c Signal Contact 21 Card Insertion Part 15-574773 (12 ) 22 Metal case 23 Terminal 23a Ground terminal 23c Signal terminal 30 First static electricity prevention means 3 1 Projection 40 Second static electricity prevention means 41 Projection 50 Third static electricity prevention means 51 Notch 61

60 Anti-static measures

Claims (1)

甲 、 A reading profit-seeking range 1. A connector device for a card, comprising: a card insertion portion for inserting a card; and a plurality of connection terminals which are in contact with each of two portions of a card inserted into the card insertion portion. The method comprises: providing a metal casing covering the card insertion portion and connected to the electrical ground, and each of the contact portions having at least one ground contact portion and a cymbal contact portion, and a static electricity prevention means is disposed on the metal, wherein The shortest distance from the signal contact portion of the card inserted in the card insertion portion to the housing is greater than the shortest distance from the ground contact portion to the housing. 2. The connector device for a card according to item 丨 of the patent application range, wherein the above-mentioned contact portions are arranged side by side in a direction perpendicular to the card insertion direction ^ 'located at both end sides of the side-by-side contact portions The contact part is a contact part for 妾 f, and the structure of the above-mentioned static electricity prevention means is on the upper part of the housing, at least in a region of the card insertion path opposite to the above-mentioned two grounding contacts 4 protruding upward. The connector device for card of the patent claim item i, Douzhong ... The above-mentioned contact portions are arranged side by side on both ends of each of the contact portions arranged side by side in the direction perpendicular to the direction of the Shaka entry. The contact part is also the second part: the contact part, the structure of the above-mentioned static electricity prevention means is on the shell, and the P knife is set to correspond to the two ground contact parts, and protrudes inward. The shortest distance between the two grounding contact parts is declared as the card connector device of the patent No. 1 of Snakeway. The contact portions are arranged side by side, and the contact portions for grounding are located in the side-by-side contact portions, and the above-mentioned two pieces of grounding of the card in the state of the contact portion of the static electricity prevention means = are described above. Connected :: 2 The recessed σ is formed at the side edge of the insertion port of the insertion start shell. Touch, opposite of the above -2-