A terminal assembly having a shielding effect

Abstract

The utility model discloses a terminal assembly with shielding effect relates to electric connector technical field, including the terminal outer frame and the connecting terminal of installing in the terminal outer frame frame, be provided with a plurality of terminals on the terminal of connecting terminal, the terminal of rightmost side is ground terminal, and the width of this ground terminal is greater than the width of other full terminal, the outside of connecting terminal is covered with first shield, second shield, third shield in proper order from outside to inside, the side wall of first shield, second shield and third shield all are fixed with the plug -in block, and the surface of plug -in block is provided with the positioning hole, and one side of terminal outer frame is connected with the positioning mechanism. The utility model discloses through the electromagnetic signal shielding function that first shield, second shield and third shield possess respectively, greatly promoted the electromagnetic signal shielding capacity of this terminal assembly, reduced the probability that system failure happened because of electromagnetic signal interference.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to a terminal assembly with shielding function. Background Technology

[0002] TYPE-C connectors on the market can be used for charging or transmitting signals; however, in practical applications, most TYPE-C connectors are used only for charging or data transmission.

[0003] Chinese patent CN222673362U discloses a rectangular terminal TYPE-C connector. It includes a housing, an insulating substrate, a conductive terminal group, and a latching element. The insulating substrate has an integrally formed tongue, and the conductive terminal group is encased within the housing. Each conductive terminal group consists of at least two conductive terminals, which are rectangular and integrally formed with a plug-in portion and a solder portion. The plug-in portion is exposed on the surface of the tongue, and the solder portion is exposed on the side of the insulating substrate. The latching element is separately disposed on both sides of the plug-in portion via the insulating substrate. This invention features two rectangular conductive terminals with plug-in and solder portions. During injection molding, the rectangular conductive terminals, combined with the insulating substrate, improve the overall injection molding strength of the product, thereby improving production quality.

[0004] However, the electrical connector terminal assemblies disclosed in the aforementioned patents still have certain shortcomings in practical applications. Although the rectangular conductive terminals combined with the insulating substrate can improve the overall injection molding strength of the product and thus improve production quality, various electronic components and circuits surround the electrical connector terminal assemblies in electronic devices. These components generate electromagnetic signals during operation. If the terminal assembly lacks shielding, the electrical signals transmitted internally may be interfered with by external electromagnetic signals, leading to signal distortion, increased bit error rate, or even system failure. Simultaneously, the terminal assembly itself may also become a source of electromagnetic interference, interfering with other surrounding electronic devices and affecting the electromagnetic compatibility of the entire system. Furthermore, the connectors disclosed in the aforementioned patents do not consider electromagnetic shielding, resulting in poor shielding performance and susceptibility to interference from external electromagnetic signals, which may lead to system failure. Utility Model Content

[0005] The purpose of this invention is to provide a terminal assembly with shielding function to solve the problem mentioned in the background art that existing electrical connectors do not take electromagnetic shielding into account, have poor shielding performance against electromagnetic signals, and are prone to interference from external electromagnetic signals, which may lead to system failure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a terminal assembly with shielding function, comprising a terminal frame and a connecting terminal installed within the terminal frame. The connecting terminal has multiple terminals, with the rightmost terminal being a grounding terminal. The connecting terminal is covered from the outside in with a first shield, a second shield, and a third shield in sequence. A plug-in block is fixed to one side wall of each of the first shield, the second shield, and the third shield. The surface of the plug-in block is provided with a positioning hole. A positioning mechanism is connected to one side of the terminal frame.

[0007] Preferably, the positioning mechanism includes a positioning plate disposed at one end of the terminal outer frame, and a connecting block is fixedly connected between the plate body of the positioning plate and the frame body of the terminal outer frame.

[0008] Preferably, the positioning mechanism further includes a plug-in groove formed on the front side wall of the positioning plate. Three plug-in grooves are arranged in the vertical direction. The three plug-in grooves correspond one-to-one with the three plug-in blocks. The plug-in blocks are movably inserted into the groove cavity of the plug-in groove. The bottom wall of the groove cavity of the plug-in groove is provided with a through hole that matches the positioning hole.

[0009] Preferably, the positioning mechanism further includes a slot formed inside the positioning plate, a lifting rod is provided in the cavity of the slot, the upper part of the lifting rod movably passes through the top wall of the cavity of the slot and extends to the outside of the positioning plate, and a lever is fixed to the top of the lifting rod.

[0010] Preferably, the positioning mechanism further includes a limiting block fixed to the bottom end of the lifting rod body, and a spring sleeved on the surface of the lifting rod body is provided in the cavity of the slot, with the spring located at the top of the limiting block.

[0011] Preferably, the positioning mechanism further includes a sleeve plate fixedly installed on the surface of the upper part of the lifting rod. The sleeve plate is located at the bottom of the lever block. A positioning rod is fixedly installed on the bottom wall of one end of the sleeve plate. The rod of the positioning rod moves through the plate body of the positioning plate and extends to the groove cavity of the bottommost insertion slot. The rod of the positioning rod moves through the cavity of the positioning hole and the cavity of the through hole.

[0012] Preferably, the bottom surface of the positioning plate has mounting holes for the connecting terminals to pass through.

[0013] Preferably, the first shielding cover is made of metal, the second shielding cover is made of magnetic material, and the third shielding cover is made of conductive material.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a first shielding cover, a second shielding cover, and a third shielding cover on the outside of the connecting terminals. The first shielding cover is made of high-strength aluminum alloy, which is lightweight and high-strength, providing excellent mechanical protection for the terminal assembly and making it less susceptible to damage from external impacts and vibrations. Simultaneously, aluminum alloy also possesses a certain electromagnetic shielding capability, initially blocking strong external electromagnetic interference. Furthermore, its surface is easily anodized, forming an oxide film that improves corrosion resistance and extends service life. The second shielding cover is made of permalloy, which has high magnetic permeability and low coercivity, effectively enhancing the shielding effect against magnetic fields. It can converge and guide the residual magnetic field passing through the outermost layer, forming a closed loop within the shielding layer, reducing the possibility of magnetic field leakage to the internal terminal assembly, thereby further improving the overall electromagnetic shielding performance, especially effectively suppressing low-frequency magnetic field interference. The third shielding cover is made of copper or copper alloy, which possesses excellent electrical and thermal conductivity. As an inner layer material, it provides excellent electromagnetic shielding and grounding, confining electromagnetic interference within the shielding shell and dissipating interference current through the grounding path. This effectively reduces electromagnetic interference reflection and coupling within the component. Furthermore, its good thermal conductivity helps dissipate heat generated during terminal component operation, preventing heat buildup that could lead to performance degradation or damage. Additionally, by making the width of the grounding terminal larger than the width of other terminals, the grounding shielding effect is enhanced.

[0016] This invention features a positioning plate and insert blocks on the first, second, and third shielding covers, each with a positioning hole. When the first, second, and third shielding covers need to be installed on the positioning plate, a lever is first used to move the lifting rod upwards. This causes a limiting block to compress a spring, and the upward movement of the lifting rod, via a sleeve plate, moves the positioning rod upwards, temporarily removing it from the three insert slots. After the positioning rod is removed, the insert blocks on the first, second, and third shielding covers can be aligned with the insert slots and inserted sequentially. Releasing the lever causes the lifting rod to automatically descend and reset under the spring force, allowing the positioning rod to automatically descend and pass through the positioning hole and through hole, thus fixing the first, second, and third shielding covers in place. Disassembly is equally convenient; simply move the lifting rod upwards again using the lever. This facilitates the replacement and maintenance of the first, second, and third shielding covers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a terminal assembly with shielding function according to the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of the first shielding cover structure of a terminal assembly with shielding function according to the present invention;

[0020] Figure 4 This is a first-view structural schematic diagram of a positioning plate for a terminal assembly with shielding function according to the present invention.

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6 This is a partial cross-sectional view of the positioning plate of a terminal assembly with shielding function according to the present invention.

[0023] In the diagram: 1. Terminal frame; 2. Connecting terminal; 201. Terminal; 3. Connecting block; 4. Positioning plate; 5. First shielding cover; 6. Second shielding cover; 7. Third shielding cover; 8. Insertion block; 9. Positioning hole; 10. Mounting hole; 11. Pulling block; 12. Sleeve plate; 13. Positioning rod; 14. Insertion slot; 15. Through hole; 16. Empty slot; 17. Limiting block; 18. Spring; 19. Lifting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6This utility model provides a technical solution: a terminal assembly with shielding function, including a terminal frame 1 and a connecting terminal 2 installed in the frame of the terminal frame 1. Multiple terminals 201 are arranged on the terminals of the connecting terminal 2. The rightmost terminal 201 is a grounding terminal. The outside of the connecting terminal 2 is covered by a first shielding cover 5, a second shielding cover 6, and a third shielding cover 7 in sequence from the outside to the inside. The first shielding cover 5 is made of metal material, the second shielding cover 6 is made of magnetic material, and the third shielding cover 7 is made of conductive material. A plug-in block 8 is welded to one side wall of the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7. A positioning hole 9 is opened on the surface of the plug-in block 8. A positioning mechanism is connected to the rear side of the terminal frame 1 to facilitate the replacement and maintenance of the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7.

[0026] By setting a first shielding cover 5, a second shielding cover 6, and a third shielding cover 7 on the outside of the connecting terminal 2, the first shielding cover 5 is made of high-strength aluminum alloy, which is lightweight and high-strength, providing good mechanical protection for the terminal assembly and making it less susceptible to damage from external impacts and vibrations. At the same time, aluminum alloy also has a certain electromagnetic shielding capability, which can initially block strong external electromagnetic interference, and its surface is easy to anodize, etc., and the oxide film formed can improve corrosion resistance and extend service life. The second shielding cover 6 is made of permalloy, which has the characteristics of high magnetic permeability and low coercivity, which can effectively enhance the shielding effect of magnetic fields. It can converge and guide the residual magnetic field that has passed through the outermost layer, so that the magnetic field forms a closed loop inside the shielding layer, reducing the possibility of magnetic field leakage to the internal terminal assembly, thereby further improving the overall electromagnetic shielding performance, especially for low-frequency magnetic field interference. The third shielding cover 7 is made of copper or copper alloy, which has good electrical and thermal conductivity. As an inner layer material, it provides excellent electromagnetic shielding and grounding, confining electromagnetic interference within the shielding shell and dissipating interference current through the grounding path. This effectively reduces electromagnetic interference reflection and coupling within the component. Furthermore, its good thermal conductivity helps dissipate heat generated during terminal component operation, preventing heat buildup that could lead to performance degradation or damage. Additionally, by making the width of the grounding terminal larger than the width of other terminals, the grounding shielding effect is enhanced.

[0027] The positioning mechanism includes a positioning plate 4 located at the rear end of the terminal outer frame 1. A connecting block 3 is welded between the plate body of the positioning plate 4 and the frame body of the terminal outer frame 1. The positioning mechanism also includes a plug-in groove 14 opened on the front side wall of the positioning plate 4. There are three plug-in grooves 14 arranged vertically. The three plug-in grooves 14 correspond one-to-one with three plug-in blocks 8, and the plug-in blocks 8 are movably inserted into the groove cavity of the plug-in groove 14. A through hole 15 adapted to the positioning hole 9 is opened on the bottom wall of the groove cavity of the plug-in groove 14. The positioning mechanism also includes a hollow groove 16 opened inside the plate body of the positioning plate 4. A lifting rod 19 is arranged in the cavity of the hollow groove 16. The upper part of the lifting rod 19 movably passes through the top wall of the cavity of the hollow groove 16 and extends to the outside of the positioning plate 4. The purpose is to allow the lifting rod 19 to move up and down. A lever 11 is welded to the top of the lifting rod 19. The purpose of the lever 11 is to facilitate the movement of the lifting rod 19. The positioning mechanism also includes a limiting block 17 welded to the bottom end of the lifting rod 19. The purpose of the limiting block 17 is to prevent the lifting rod 19 from detaching from the positioning plate 4. A spring 18 is provided in the cavity of the slot 16, which is sleeved on the surface of the lifting rod 19. The spring 18 is located on top of the limiting block 17, so that the lifting rod 19 has the function of automatic reset. The positioning mechanism also includes a sleeve plate 12 welded to the upper surface of the lifting rod 19. The sleeve plate 12 is located at the bottom of the lever block 11. The positioning rod 13 is welded to the bottom wall of the front end of the sleeve plate 12. The rod of the positioning rod 13 moves through the plate of the positioning plate 4 and extends into the slot of the bottommost insertion groove 14. The rod of the positioning rod 13 moves through the cavity of the positioning hole 9 and the cavity of the through hole 15. The bottom plate surface of the positioning plate 4 is provided with a mounting hole 10 for the connecting terminal 2 to pass through.

[0028] By setting a positioning plate 4 and installing insertion blocks 8 on the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7, and opening positioning holes 9 on the insertion blocks 8, when the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7 need to be installed on the positioning plate 4, the lifting rod 19 can be moved upward by the lever 11. At this time, the limiting block 17 will squeeze the spring 18, and the upward movement of the lifting rod 19 will drive the positioning rod 13 upward through the sleeve 12, so that the positioning rod 13 is temporarily pulled out from the three insertion slots 14. After the positioning rod 13 is pulled out, the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7 can be installed in sequence. The plug-in blocks 8 on the shielding cover 6 and the third shielding cover 7 are aligned with the plug-in slots 14 and inserted. After insertion, the lever 11 is released, and under the elastic force of the spring 18, the lifting rod 19 automatically descends and resets, thereby causing the positioning rod 13 to automatically descend. The positioning rod 13 passes through the positioning hole 9 and the through hole 15, thus positioning and fixing the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7. Disassembly is also convenient; the lifting rod 19 can be moved upward again by the lever 11, which facilitates the replacement and maintenance of the first shielding cover 5, the second shielding cover 6, and the third shielding cover 7.

[0029] 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 apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal assembly with shielding function, comprising a terminal frame (1) and a connecting terminal (2) installed within the frame of the terminal frame (1), characterized in that: The connection terminal (2) is provided with multiple terminals (201), and the rightmost terminal (201) is a grounding terminal. The connection terminal (2) is covered with a first shield (5), a second shield (6), and a third shield (7) from the outside to the inside. A plug-in block (8) is fixed on one side wall of the first shield (5), the second shield (6), and the third shield (7). A positioning hole (9) is opened on the surface of the plug-in block (8). A positioning mechanism is connected to one side of the terminal frame (1).

2. The terminal assembly with shielding function according to claim 1, characterized in that: The positioning mechanism includes a positioning plate (4) located at one end of the terminal frame (1), and a connecting block (3) is fixedly connected between the plate body of the positioning plate (4) and the frame body of the terminal frame (1).

3. The terminal assembly with shielding function according to claim 2, characterized in that: The positioning mechanism also includes a plug-in groove (14) on the front side wall of the positioning plate (4). There are three plug-in grooves (14) arranged in the vertical direction. The three plug-in grooves (14) correspond one-to-one with the three plug-in blocks (8). The plug-in blocks (8) are movably inserted into the cavity of the plug-in groove (14). The bottom wall of the cavity of the plug-in groove (14) is provided with a through hole (15) that matches the positioning hole (9).

4. The terminal assembly with shielding function according to claim 3, characterized in that: The positioning mechanism also includes a slot (16) opened inside the positioning plate (4). A lifting rod (19) is provided in the cavity of the slot (16). The upper part of the lifting rod (19) moves through the top wall of the cavity of the slot (16) and extends to the outside of the positioning plate (4). A lever (11) is fixed to the top of the lifting rod (19).

5. The terminal assembly with shielding function according to claim 4, characterized in that: The positioning mechanism also includes a limiting block (17) fixed to the bottom end of the lifting rod (19), and a spring (18) sleeved on the surface of the lifting rod (19) is provided in the cavity of the slot (16), and the spring (18) is located at the top of the limiting block (17).

6. The terminal assembly with shielding function according to claim 5, characterized in that: The positioning mechanism also includes a sleeve plate (12) fixedly installed on the upper surface of the lifting rod (19). The sleeve plate (12) is located at the bottom of the lever (11). A positioning rod (13) is fixedly installed on the bottom wall of one end of the sleeve plate (12). The rod of the positioning rod (13) moves through the plate of the positioning plate (4) and extends to the groove of the bottommost insertion slot (14). The rod of the positioning rod (13) moves through the cavity of the positioning hole (9) and the cavity of the through hole (15).

7. The terminal assembly with shielding function according to claim 2, characterized in that: The bottom plate surface of the positioning plate (4) is provided with mounting holes (10) for the connecting terminal (2) to pass through.

8. The terminal assembly with shielding function according to claim 1, characterized in that: The first shield (5) is made of metal, the second shield (6) is made of magnetic material, and the third shield (7) is made of conductive material.

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