Card edge self-locking connector

Abstract

The utility model relates to a card edge self -locking connector, is equipped with the slot of lengthening extension along the first direction on insulating main part, the slot is adapted to accommodate electronic card, and several terminals are arranged in the slot, make terminal and electronic card electrically conductive connection, the one end of insulating main body is equipped with the ear department extending along the first direction, and the ear department has the lock slot with the opening upwards, the corresponding side of electronic card is equipped with the lock part, when electronic card is inserted the slot, the lock part corresponds and inserts the lock slot, and still have a card protection piece, and the card protection piece is installed on the ear department and can move along the first direction, and the power piece is equipped between the card protection piece and the ear department for driving the card protection piece, makes the card protection piece move to the slot direction and keeps stable posture, and the lock tongue department is equipped on the card protection piece for with the lock part joint. The utility model can realize automatic locking, lock electronic card, when withdrawing, only need to move the card protection piece to be able to easily take out electronic card, has better anti -drop efficacy, and long service life.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a card edge connector for accommodating electronic cards. Background Technology

[0002] Card edge connectors are widely used in computer equipment, where they are mounted on circuit boards to accommodate electronic cards. Typically, a card edge connector has upward-protruding towers at both ends of its insulated body along its longitudinal direction, perpendicular to the vertical direction. One of the towers has a latch pivotally connected to it for locking and ejecting the electronic card. This locking and unlocking method, using a rotating latch, is prone to loosening and rotation over time, especially in vibrating environments. It frequently detaches unexpectedly due to external force or vibration, failing to properly lock the electronic card and affecting its insertion and use. Summary of the Invention

[0003] The purpose of this invention is to provide a self-locking connector with improved locking performance, which is less prone to loosening and suitable for use in vibration environments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A card edge self-locking connector includes an insulating body with a slot extending along a first direction. The slot is adapted to accommodate an electronic card, and several terminals are arranged inside the slot to electrically connect the terminals to the electronic card. One end of the insulating body has an ear extending along the first direction, which has an upward-opening locking groove. The corresponding side of the electronic card has a locking part, which is inserted into the locking groove when the electronic card is inserted into the slot. It also includes a card protector mounted on the ear and movable along the first direction. A power member is provided between the card protector and the ear, driving the card protector to move towards the slot and maintain a stable posture. The card protector has a locking tongue for engaging with the locking part.

[0005] A further aspect of the above solution is that the protective clip is a cover with a U-shaped groove, which is inverted onto the ear through the U-shaped groove and guided to move by cooperating with the outer contour of the ear through the U-shaped groove.

[0006] A further improvement in the above scheme is that a notch is left on the inner bottom of the U-shaped groove, which is connected to the upper and lower parts of the lock groove, and one side wall of the notch forms the lock tongue.

[0007] The above solution is further described in that the locking groove is formed by hollowing out the upper side of the root of the ear and extending along the first direction to construct an installation space so that the power component can be installed in the installation space.

[0008] A further aspect of the above solution is that the power component is a compression spring, which is arranged along the first direction, such that one end of the compression spring supports the ear, while the other end of the compression spring pushes against the protective clip, causing the protective clip to move toward the slot.

[0009] A further improvement of the above solution is that the guard has a drooping arm that extends into the installation space, and a fixing rod extending along a first direction is provided on one side of the drooping arm. The fixing rod is used for assembling the compression spring sleeve.

[0010] The above solution is further provided with sliding grooves on the left and right inner sidewalls of the U-shaped groove. The sliding grooves extend along the first direction and cooperate with the ribs preset on the outer periphery of the ear to guide the movement of the protective clip. Stopping parts and anti-reverse parts are respectively provided at the front and rear ends of the ribs.

[0011] The above solution is further described as follows: the locking part is a barb structure, the locking tongue is in the form of a pressure plate, and a guide bevel is provided on the locking tongue for cooperating with the locking part to be inserted into the lock groove.

[0012] A further improvement of the above solution is that the outer peripheral surface of the card protector is provided with anti-slip texture, which allows the card protector to be held and pulled to unlock.

[0013] This invention uses a power component to drive the card protector, causing it to move towards the slot and maintain a stable posture. The locking tongue on the card protector engages with the locking part of the electronic card, thus locking the electronic card. Under the drive of the power component, the engagement remains continuous and is not easy to loosen. This ensures a reliable connection between the electronic card and the connector, preventing accidental detachment due to external force or vibration.

[0014] This invention features a simple structure, low investment cost, and convenient manufacturing and assembly. The electronic card automatically locks after being inserted into the connector, and can be easily removed by simply moving the card protector. This invention is suitable for use in computer and communication equipment, industrial control and automation, and consumer electronics, and is particularly suitable for use in vibration environments, offering excellent anti-detachment performance and a long service life. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the preferred embodiment of this invention; Appendix Figure 2 for Figure 1 Another perspective structural diagram of the embodiment; Appendix Figure 3 for Figure 1 A partial structural exploded view of the embodiment; Appendix Figure 4 for Figure 1 A schematic diagram of the assembly structure of the embodiment; Appendix Figure 5 for Figure 1Schematic diagram of the insulating main structure of the embodiment; Appendix Figure 6 for Figure 1 A schematic diagram of the protective card component structure in the embodiment; Appendix Figure 7 This is a schematic diagram of the present invention assembled onto a circuit board for use; Appendix Figure 8 for Figure 7 Schematic diagram after assembly; Appendix Figure 9 for Figure 8 Cross-sectional structural diagram. Detailed Implementation

[0016] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0017] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0018] See Figures 1-9 The diagram shown is a preferred embodiment of the present invention. The present invention relates to a card edge self-locking connector, comprising a flat insulating body 1 extending along a first direction, which can be obtained by injection molding. The insulating body 1 has a slot 11 extending along the first direction, with the opening of the slot 11 facing upwards. The slot 11 is adapted to accommodate an electronic card 2, and several terminals 3 are arranged inside the slot 11, so that the terminals 3 are electrically connected to the electronic card 2 for electrical signal transmission. The first direction is defined as the X-axis direction of three-dimensional spatial coordinates, and the direction in which the electronic card 2 is inserted into the slot 11 is the Z-axis direction of three-dimensional spatial coordinates. In this embodiment, the several terminals 3 are arranged in two rows, left and right, and the terminals have soldering leads extending from the insulating body 1 for soldering to a circuit board (e.g., ...). Figure 7 , 8As shown), the insulating body 1 also has corresponding positioning posts for connecting to the circuit edge, increasing the structural integrity of the upper plate mounting. One end of the insulating body 1 is provided with an ear 12 extending along a first direction, which is formed together with the insulating body 1; the ear 12 has an upward-facing locking groove 121, which is separated from the slot 11. The corresponding side of the electronic card 2 is provided with a locking part 21, which is inserted into the locking groove 121 when the electronic card 2 is inserted into the slot 11; and it also has a card protector 4, which is installed on the ear 12 and can move along the first direction. A power member 5 is provided between the card protector 4 and the ear 12, which drives the card protector 4 to move towards the slot 11 and maintain a stable posture; the card protector 4 is provided with a locking tongue 41, which is used to engage with the locking part 21 to lock the electronic card, so that the electronic card 2 is stably inserted into the slot 11. When unlocking, by stopping the operation of the power component 5 or overcoming the driving force of the power component 5, the locking tongue of the card guard 4 is disengaged, releasing the card lock part 21, at which point the electronic card can be pulled out.

[0019] In this embodiment, the protective clip 4 is a cover with a U-shaped groove 42, which is an injection molded part. The protective clip 4 is upside down on the ear 12 through the U-shaped groove 42 and the movement of the protective clip 4 is guided by the cooperation between the U-shaped groove 42 and the outer contour of the ear 12. The U-shaped groove 42 extends through the front and rear ends of the protective clip 4. Sliding grooves 422 are respectively provided on the left and right inner side walls of the U-shaped groove 42. The sliding grooves 422 extend along the first direction and cooperate with the ribs 122 preset on the outer periphery of the ear 12 to guide the movement of the protective clip 4. Stopping parts 123 and anti-reverse parts 124 are respectively provided at the front and rear ends of the ribs 122. In this embodiment, the rib 122 is the remaining adhesive space after the partial reduction of the ear 12, and the stop 123 is the end of the insulating main body that connects to the ear and forms a step relative to the ear. That is, under normal conditions, the protective clip 4 is supported on the stop 123 and maintains a stable posture under the drive of the power component 5; the anti-reverse part 124 is the shoulder left at the rear end of the ear 12, which supports the corresponding step of the protective clip 4 to prevent the protective clip 4 from sliding out of the ear when unlocking. In this embodiment, the slide groove 422 is composed of the inner bottom surface of the U-shaped groove 42 and the raised ribs respectively provided on the left and right inner sidewalls of the U-shaped groove 42. The structure is simple and convenient to manufacture and assemble.

[0020] In this embodiment, the expansion and contraction characteristics of the U-shaped groove 42 are utilized to install the protective clip 4 upside down on the ear 12 from top to bottom. When pressed in, the sliding grooves 422 on the left and right inner walls of the U-shaped groove respectively engage with the reinforcing strips 122, so that the protective clip 4 covers the ear 12 and can reciprocate along the first direction for locking and unlocking.

[0021] In this embodiment, a notch 421 is provided on the inner bottom of the U-shaped groove 42. This notch 421 is vertically connected to the locking groove 121 so that the locking part 21 of the electronic card 2 can be inserted into the locking groove 121. The notch 421 is also U-shaped, and the left and right sides of the notch 421 also form a clamping limit for the locking part 21. The other side wall of the notch 421 directly forms the locking tongue part 41, resulting in a good overall structure. The locking part 21 has a barbed structure, and the locking tongue part 41 is in the form of a pressure plate. A guide slope 411 is provided on the locking tongue part 41 to facilitate the insertion of the locking part 21 into the locking groove 121, making it convenient for the locking part 21 to be inserted. The locking groove 121 is formed by hollowing out from the upper side of the root of the ear part 12 and extends along the first direction to form an installation space so that the power component 5 can be installed in the installation space and also be protected. The overall structure is compact.

[0022] Furthermore, the power component 5 is a compression spring, which is arranged along the first direction, so that one end of the compression spring supports the ear 12, and the other end of the compression spring pushes the protective clip 4, causing the protective clip 4 to move towards the slot 11. The protective clip 4 has a drooping arm 43 that extends into the installation space, and a fixing rod 44 extending along the first direction is provided on one side of the drooping arm 43. The fixing rod 44 is used for assembling the compression spring. During assembly, one end of the compression spring is first sleeved on the fixing rod 44 and supported by the drooping arm 43. The length of the fixing rod 44 is shorter than the length of the compression spring. Then, the protective clip 4 is installed upside down on the ear 12 and pressed in forcefully. The other end of the compression spring also slides into the inner wall of the installation space, simultaneously achieving a supporting relationship. The fixing rod 44 provides a guide for the extension and retraction of the compression spring, realizing that the compression spring pushes the protective clip 4, causing the protective clip 4 to move towards the slot 11 and maintain relative kinetic potential energy. Thus, when the locking part 21 is inserted into the lock slot 121, it first passes through the notch 421. Utilizing the inclined surface 411, the locking part 21 pushes aside the protective card 4 during insertion, compressing the spring. Once the locking part 21 is fully inserted into the lock slot 121, the spring force supports the protective card 4, causing it to move towards the slot 11. The locking tongue 41 presses against the locking part 21, locking the electronic card and ensuring its stable insertion into the slot 11. The direction of the locking movement of the protective card 4 is perpendicular to the direction of the electronic card insertion, making it less susceptible to loosening due to vibration or other external forces. Therefore, compared to the traditional rotating ear-type latch, this locking solution is more ideal. To unlock, pull the protective card 4 backward to overcome the spring force of the compression spring, allowing the locking tongue of the protective card 4 to disengage and release the locking part 21, at which point the electronic card can be removed. To enhance the user experience, the outer periphery of the card protector 4 is provided with anti-slip texture 45. The anti-slip texture 45 allows for hand-holding and pulling of the card protector for unlocking. The structure is simple and easy to implement.

[0023] Figure 7 , 8As shown in Figure 9, in use, the insulating body 1 of this utility model is first fixed to the circuit board 100. The terminal 3 is soldered to the circuit board through the soldering pin to achieve electrical conductivity, so that the electronic card 2 can be inserted into the slot 11. The electronic card 2 forms conductivity with the circuit board through the terminal to facilitate the transmission of electrical signals. When the electronic card 2 is inserted into the slot 11, the card locking part 21 is inserted into the locking groove 121. Then, the locking tongue part 41 of the card protector 4 adaptively presses against the card locking part 21 to lock the electronic card, so that the electronic card 2 is stably inserted into the slot 11.

[0024] This invention features a simple structure, low investment cost, and convenient manufacturing and assembly. The electronic card automatically locks after being inserted into the connector, and can be easily removed by simply moving the card protector. This invention is suitable for use in computer and communication equipment, industrial control and automation, and consumer electronics, and is particularly suitable for use in vibration environments, offering excellent anti-detachment performance and a long service life.

[0025] Of course, the above detailed description of the present utility model in conjunction with the embodiments is only for illustrating the technical concept and features of the present utility model. Its purpose is to enable those skilled in the art to understand the content of the present utility model and implement it. Therefore, all equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A card edge self-locking connector, comprising an insulating body (1), wherein the insulating body (1) is provided with a slot (11) extending along a first direction, the slot (11) being adapted to accommodate an electronic card (2), and wherein a plurality of terminals (3) are arranged inside the slot (11) such that the terminals (3) are electrically connected to the electronic card (2); characterized in that: One end of the insulating body (1) is provided with an ear (12) extending in a first direction, and the ear (12) has an upward-facing locking groove (121); the corresponding side of the electronic card (2) is provided with a locking part (21), and when the electronic card (2) is inserted into the slot (11), the locking part (21) is inserted into the locking groove (121); and it also has a card protector (4), which is installed on the ear (12) and can move in the first direction. A power member (5) is provided between the card protector (4) and the ear (12), and the power member (5) drives the card protector (4) to move towards the slot (11) and maintain a stable posture; the card protector (4) is provided with a locking tongue (41), which is used to engage with the locking part (21).

2. The self-locking connector with a locking edge according to claim 1, characterized in that: The protective cover (4) is a cover with a U-shaped groove (42). The protective cover (4) is upside down on the ear (12) through the U-shaped groove (42) and the movement of the protective cover (4) is guided by the cooperation of the U-shaped groove (42) and the outer contour of the ear (12).

3. A self-locking connector with a locking edge according to claim 2, characterized in that: The U-shaped groove (42) has a notch (421) on its inner bottom. The notch (421) is connected to the lock groove (121) vertically. One side wall of the notch (421) forms the lock tongue (41).

4. A self-locking connector with a locking edge according to claim 1 or 3, characterized in that: The locking groove (121) is formed by hollowing out the upper side of the root of the ear (12) downwards, and the locking groove (121) extends along the first direction to form an installation space so that the power component (5) can be installed in the installation space.

5. A self-locking connector with a locking edge according to claim 4, characterized in that: The power component (5) is a compression spring, which is arranged along the first direction so that one end of the compression spring supports the ear (12) and the other end of the compression spring pushes the guard (4) so ​​that the guard (4) moves toward the slot (11).

6. A self-locking connector with a locking edge according to claim 5, characterized in that: The guard (4) has a drooping arm (43) that extends into the installation space. A fixing rod (44) extending in a first direction is provided on one side of the drooping arm (43), which is used for the assembly of the compression spring sleeve.

7. A self-locking connector with a locking edge according to claim 2, characterized in that: The U-shaped groove (42) is provided with sliding grooves (422) on the left and right inner side walls respectively. The sliding grooves (422) extend along the first direction. The sliding grooves (422) cooperate with the ribs (122) preset on the outer periphery of the ear (12) to guide the movement of the guard (4). The front and rear ends of the ribs (122) are respectively provided with stop parts (123) and anti-reverse parts (124).

8. A self-locking connector with a locking edge according to claim 1, characterized in that: The locking part (21) is a barb structure, the locking tongue part (41) is a pressure plate, and the locking tongue part (41) is provided with a guide slope (411) for cooperating with the locking part (21) to insert into the locking groove (121).

9. A self-locking connector with a locking edge according to claim 2, characterized in that: The outer periphery of the card protector (4) is provided with anti-slip texture (45), which allows the card protector to be held and pulled to unlock.

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