A high-frequency card edge connector

Abstract

The utility model discloses an embodiment provides a kind of high-frequency card edge connector, comprising: shell, it is equipped with slot on it, the two side edges of slot longitudinally pass through the upper end and lower end of shell, it is equipped with several terminal slots;Terminal slot middle part is communicated with slot;It is equipped with arc spring terminal in terminal slot;Spring terminal is conductor, its lower end is connector pin, its upper end is abutting end, and abutting end extends into slot;The outside of shell is equipped with opening, and the lower end of terminal slot is exposed in opening position;Opening position is detachably provided with side cover;Terminal slot lower end is also provided with abutting piece;Abutting piece, its first end is in abutment with the back of spring terminal, and its second end is in abutment with side cover.The above-mentioned high-frequency card edge connector, by detachable side cover, it is convenient to assemble and maintain, reduce cost and time consumption, by abutting piece design ensure that spring terminal and ground structure are in good contact, reduce contact failure, guarantee data transmission stability and rate.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a high-frequency card edge connector. Background Technology

[0002] Card edge connectors are common connectors used between circuit board cards, such as PCI connectors and PCI-E connectors (also known as PCIe connectors). These connectors can be used in I / O cards in desktop PCs, as well as in data communication applications of servers, workstations, routers, industrial embedded systems, interface processing and data storage devices (such as graphics cards, hard disk drives (HDDs) and solid-state drives (SSDs)).

[0003] Most existing edge connectors adopt a one-piece structure, which is inconvenient for assembly and subsequent disassembly and maintenance. Furthermore, due to structural limitations, they can easily affect data transmission rates. With the continuous upgrading of electronic devices, the demand for faster data transmission rates is increasing, placing higher requirements on the connectors used for this transmission. Existing edge connectors can no longer meet the requirements of high-speed transmission. Therefore, this invention proposes a high-frequency edge connector to at least partially solve the problems that may exist in the prior art. Utility Model Content

[0004] In view of the above problems, the present invention provides a high-frequency card edge connector that overcomes or at least partially solves the above problems.

[0005] To address the aforementioned problems, this utility model discloses a high-frequency card edge connector, comprising:

[0006] A housing having a slot thereon, the two sides of the slot extending longitudinally through the upper and lower ends of the housing, and having a plurality of terminal slots thereon; the middle of the terminal slots communicating with the slots;

[0007] The terminal slot is provided with an arc-shaped elastic terminal; the elastic terminal is a conductor, its lower end is a connector pin, its upper end is an abutment end, and the abutment end extends into the slot;

[0008] The outer side of the housing is provided with an opening, and the lower end of the terminal slot is exposed at the opening; a side cover is detachably provided at the opening.

[0009] The lower end of the terminal slot is also provided with an abutment piece; the abutment piece has a first end abutting against the back of the elastic terminal and a second end abutting against the side cover.

[0010] Optionally, the outer surface of the housing is a conductor layer, wherein the outer side of the side cover is a conductive surface and the inner side of the side cover is an insulating surface.

[0011] Optionally, the first end of the abutment piece is provided with a curved corner;

[0012] The curved corner abuts against the back of the elastic terminal.

[0013] Optionally, the side cover is provided with at least two parallel slots horizontally;

[0014] The second end of the abutment piece is provided with at least two sets of clips, the clips in each set are arranged facing away from each other, and a U-shaped groove is provided between the two clips in each set;

[0015] The number of sets of the cards is the same as the number of card slots;

[0016] When the side cover closes the opening, the clip engages in the slot.

[0017] Optionally, the side cover is provided with plug-in pins at both ends, and the opening of the housing is provided with a corresponding plug-in slot.

[0018] Optionally, the resilient terminal is a copper terminal with a gold-plated surface.

[0019] Optionally, the abutment piece is made of a flexible metal material or plastic.

[0020] Optionally, the abutment end has a curved structure.

[0021] The embodiments of this utility model have the following advantages:

[0022] The housing has a slot, with its two sides longitudinally extending through the upper and lower ends of the housing, and contains several terminal slots. The center of each terminal slot communicates with the slot. An arc-shaped resilient terminal is located within each terminal slot. The resilient terminal is a conductor, with its lower end serving as a connector pin and its upper end as an abutment end extending into the slot. An opening is located on the outer side of the housing, with the lower end of the terminal slot exposed at the opening. A side cover is detachably mounted at the opening. An abutment piece is also provided at the lower end of the terminal slot. The first end of the abutment piece abuts against the back of the resilient terminal, and its second end abuts against the side cover. This high-frequency edge connector, with its detachable side cover, facilitates assembly and maintenance, reducing costs and time. The abutment piece design ensures good contact between the resilient terminal and the grounding structure, reducing poor contact and guaranteeing data transmission stability and speed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a high-frequency card edge connector according to an embodiment of the present invention;

[0024] Figure 2This is a schematic diagram of the overall structure of a high-frequency card edge connector according to an embodiment of the present invention from another perspective;

[0025] Figure 3 This is an exploded structural diagram of a high-frequency card edge connector according to an embodiment of the present invention;

[0026] Figure 4 This is a partially exploded structural diagram of a high-frequency card edge connector according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the grounding shell of a high-frequency card edge connector according to an embodiment of the present invention;

[0028] Figure 6 This is a cross-sectional structural diagram of a high-frequency edge connector according to an embodiment of the present invention;

[0029] Figure 7 yes Figure 6 Enlarged view of section A.

[0030] The attached diagram is described below:

[0031] 1. Housing; 2. Flexible terminal; 3. Abutment piece; 4. Flexible terminal; 101. Slot; 102. Terminal slot; 103. Opening; 201. Connector pin; 202. Abutment end; 301. Curved corner; 302. Clip; 303. U-shaped groove; 401. Conductive surface; 402. Insulating surface; 403. Slot; 404. Insertion pin. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1 to 7 The diagram illustrates a high-frequency edge connector of this utility model, comprising: a housing 1 with a slot 101 thereon, the two sides of the slot 101 extending longitudinally through the upper and lower ends of the housing 1, and having a plurality of terminal slots 102 thereon; the middle of the terminal slots 102 communicating with the slot 101; an arc-shaped elastic terminal 2 therein in the terminal slot 102; the elastic terminal 2 is a conductor, its lower end being a connector pin 201, and its upper end being an abutment end 202, the abutment end 202 extending into the slot 101; an opening 103 is provided on the outer side of the housing 1, the lower end of the terminal slot 102 being exposed at the opening 103; a side cover 4 is detachably provided at the opening 103; an abutment piece 3 is also provided at the lower end of the terminal slot 102; the abutment piece 3 has a first end abutting against the back of the elastic terminal 2, and a second end abutting against the side cover 4.

[0034] In this embodiment, an opening 103 is provided on the outer side of the housing 1 of the high-frequency card edge connector, and a side cover 4 is detachably provided at the opening 103. This allows for easy installation of components such as the elastic terminal 2 into the terminal slot 102 through the opening 103 during assembly. Later, when maintenance or component replacement is required, only the side cover 4 needs to be removed to access the internal elastic terminal 2, etc. Compared to the integrated structure of existing card edge connectors, this significantly improves the convenience of assembly and maintenance. An abutment piece 3 is provided at the lower end of the terminal slot 102. The first end of the abutment piece 3 abuts against the back of the elastic terminal 2, and the second end abuts against the side cover 4. When the side cover 4 is installed, the abutment piece 3 stably presses the elastic terminal 2, ensuring that the elastic terminal 2 is stable in the terminal slot 102 and maintaining good elasticity at the abutment end 202. This allows for a good electrical connection with the electronic card inserted into the high-frequency card edge connector, reducing the possibility of poor contact and thus helping to ensure the stability of data transmission and meet the reliability requirements of high-speed transmission.

[0035] The detachable side cover structure also makes the installation of various components during the production and assembly process of the edge connector more convenient and quick, improving production efficiency. Later in the product's lifespan, if a malfunction occurs or components need to be upgraded, maintenance personnel can easily disassemble and replace the relevant parts, reducing maintenance costs and time, and improving the overall lifespan and availability of the equipment.

[0036] In one embodiment of this application, the outer surface of the housing 1 is a conductive layer, wherein the outer side of the side cover 4 is a conductive surface 401, and the inner side of the side cover 4 is an insulating surface 402. By using a conductive layer on the outer surface of the housing 1, and having a conductive surface 401 on the outer side and an insulating surface 402 on the inner side of the side cover 4, a stable electromagnetic shielding environment can be constructed. The conductive surface can be well connected to the external grounding structure, effectively isolating internal electronic components from external electromagnetic interference, while preventing internal signal leakage from interfering with external devices, ensuring the accuracy and stability of data transmission, and is particularly suitable for complex electronic system environments with high electromagnetic compatibility requirements.

[0037] By resolving the issue of poor contact between the grounding shell and the terminals, signal integrity is ensured during data transmission. In high-speed data transmission, a stable and reliable connection reduces signal attenuation, distortion, and interference, thereby improving data transmission rate and accuracy. This meets the stringent requirements of ever-evolving electronic devices for high-speed data transmission, contributing to enhanced performance and reliability of the entire electronic system. Consequently, this high-frequency edge connector is suitable for various electronic equipment applications with high data transmission rate requirements, such as high-speed storage devices and high-performance computing devices.

[0038] In one embodiment of this application, the first end of the abutment piece 3 is provided with a curved corner 301; the curved corner 301 abuts against the back of the elastic terminal 2. By providing a curved corner 301 at the first end of the abutment piece 3 to abut against the back of the elastic terminal 2, compared with a flat abutment, the curved corner structure can better fit the arc or irregular shape of the back of the elastic terminal 2, increase the contact area, and make the abutment tighter and more reliable.

[0039] In one embodiment of this application, the side cover 4 is horizontally provided with at least two parallel slots 403; the second end of the abutment piece 3 is provided with at least two sets of clips 302, each set of clips 302 being arranged back-to-back, and a U-shaped groove 303 being provided between the two clips 302 in each set; the number of sets of clips 302 is the same as the number of slots 403; when the side cover 4 closes the opening 103, the clips 302 are engaged in the slots 403. The side cover 4 is provided with slots 403 that cooperate with the clips 302 of the abutment piece 3, such as... Figure 6 and Figure 7 As shown, it can not only accurately position the abutment piece 3 to ensure that the abutment piece is always in the correct working position after the side cover is installed, and apply stable pressure to the elastic terminal 2, but also make the connection between the side cover 4 and the abutment piece 3 more secure. When the equipment is subjected to external forces such as vibration and impact, it can also effectively prevent the side cover 4 and the abutment piece 3 from shifting or loosening, thereby ensuring the connection reliability of the entire connector and maintaining a stable data transmission state.

[0040] In one embodiment of this application, the side cover 4 is provided with plug-in pins 404 at both ends, and the opening 103 of the housing 1 is correspondingly provided with a plug-in groove (not shown in the figure). The plug-in pins 404 at both ends of the side cover 4 engage with the plug-in grooves at the opening 103 of the housing, allowing the side cover 4 to be quickly and accurately positioned and fixed when installed into the opening 103 of the housing 1, improving assembly convenience and efficiency. Simultaneously, this plug-in structure enhances the stability of the connection between the side cover 4 and the housing 1. Compared to simply relying on snaps or screws for fixing, it can better withstand external forces, reducing problems such as poor contact caused by loose side covers, and helping to ensure the long-term stable operation of the connector.

[0041] In one embodiment of this application, the elastic terminal 2 is a copper terminal with a gold-plated layer on its surface. The elastic terminal 2 uses copper with a gold-plated surface. Copper has good conductivity, which can reduce resistance loss during signal transmission, while the gold plating further improves the terminal's oxidation and corrosion resistance, maintains good conductivity on the terminal surface, and reduces the degradation of contact performance caused by long-term use or harsh environments. This helps ensure the stable electrical performance of the connector in long-term, high-frequency data transmission applications, extends the connector's service life, and guarantees the quality and reliability of high-speed data transmission. Simultaneously, gold has a lower resistivity than copper, making it more suitable for high-frequency data transmission.

[0042] It should be noted that relatively low resistivity allows for lower current conduction during data transfer, according to the electrothermal formula Q=I. 2 Therefore, the smaller the resistance, the lower the current, and the less heat is generated.

[0043] In one embodiment of this application, the abutment piece 3 is made of either an elastic metal material or plastic. When the abutment piece 3 is made of an elastic metal material, its elastic properties allow it to better adapt to the minute deformations of the elastic terminal under different operating conditions, maintaining a stable abutment pressure and ensuring good contact performance. Alternatively, it can be made of plastic. Plastic has good insulation properties, preventing accidental short circuits between the abutment piece 3 and other components from affecting the normal operation of the connector. Furthermore, plastic materials are relatively inexpensive, offering advantages in applications where cost control is strict and electrical performance requirements are not particularly demanding, thus improving the product's applicability and economy.

[0044] In one embodiment of this application, the abutment end 202 has a curved structure. The curved abutment end provides a certain degree of elastic buffering when in contact with the mating component, better accommodating positional deviations or minor deformations of the mating component during insertion, ensuring a reliable electrical connection. Simultaneously, the curved structure can increase the number of contact points or the contact area, reducing contact resistance and improving the quality and stability of signal transmission. Especially during high-speed data transmission, it can reduce signal reflection and loss, enhancing overall transmission performance.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0046] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0047] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0048] The above provides a detailed description of a high-frequency card edge connector provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-frequency card edge connector characterized by comprising: The utility model relates to a connector, including: A shell is equipped with the slot on it, the both sides edge of the slot is longitudinal through the upper end and the lower end of the shell, is equipped with a plurality of terminal slot, the middle part of the terminal slot communicates with the slot, The terminal slot is equipped with the elastic terminal of bow shape, the elastic terminal is conductor, the lower end is connector pin, the upper end is abutment end, the abutment end extends to the slot, The outside of the shell is equipped with the opening, the lower end of the terminal slot is exposed in the opening position, the opening position is detachably equipped with the side cover, The lower end of the terminal slot is further equipped with the abutment piece, the first end of the abutment piece is in abutment with the back of the elastic terminal, and the second end of the abutment piece is in abutment with the side cover.

2. The high frequency card edge connector of claim 1, wherein, The outside of the shell is conductor layer, wherein the outside of the side cover is conductive surface, and the inside of the side cover is insulating surface.

3. The high frequency card edge connector of claim 1, wherein, The first end of the abutment piece is equipped with the curved angle, The curved angle is in abutment with the back of the elastic terminal.

4. The high frequency card edge connector of claim 1, wherein, The side cover is horizontally equipped with at least two parallel clamping grooves, The second end of the abutment piece is equipped with at least two groups of clips, the back of each group of the clip is arranged, and a U-shaped groove is arranged between two clips of each group, The number of the clip group is same with the number of the clamping groove, When the side cover covers the opening, the clip is clamped in the clamping groove.

5. The high frequency card edge connector of claim 1, wherein, Both ends of the side cover are equipped with the plug-in pin, and the opening position of the shell is correspondingly equipped with the plug-in slot.

6. The high frequency card edge connector of claim 1, wherein, The elastic terminal is copper terminal, and the surface has gold plating layer.

7. The high frequency card edge connector of claim 1, wherein, The abutment piece is made of elastic metal material or plastic.

8. The high frequency card edge connector of claim 1, wherein, The abutment end is bent structure.

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