Connector assembly

Abstract

This utility model discloses a connector assembly, which is installed on a circuit board equipped with an electrical connector. The electrical connector electrically connects to a chip. The chip includes a substrate and a protrusion extending upward from the substrate. The assembly includes a fixing base and a top cover pivotally connected to the fixing base. The top cover includes a main body, an opening, and multiple hook arms. The opening extends vertically through the main body and forward through to form an insertion interface at the front end of the top cover. The multiple hook arms are distributed on the left, right, and rear sides of the opening. Each hook arm is connected to the main body at a position near the opening relative to the outer edge of the top cover away from the opening. The chip slides into the opening from the insertion interface, so that the hook arms hook onto the lower surface of the substrate. The main body and hook arms are located on the upper and lower sides of the substrate, and the protrusion is exposed at the opening. The top cover, carrying the chip, rotates around the fixing base and closes to the top of the electrical connector. This method installs the chip through the top cover, eliminating the need for clamping components, saving costs, and simplifying the installation process.

Description

[Technical Field]

[0001] This utility model relates to a connector assembly, and more particularly to a connector assembly for connecting a chip to a circuit board. [Background Technology]

[0002] A connector assembly includes an insulating body, conductive terminals housed within the insulating body, and a cover covering the insulating body and a fixing seat located outside the insulating body. The insulating body has a receiving cavity for housing a chip, the cover has an opening corresponding to the receiving cavity, and one end of the cover is pivotally connected to the fixing seat. The fixing seat is provided with multiple positioning posts, and a clamping member carrying a chip is vertically mounted on the insulating body, wherein the clamping member passes through the positioning posts for positioning.

[0003] However, chip removal typically involves manually picking up the chip and clamp together to install it onto the insulating body, and then manually removing the chip and clamp together. But as chips become larger and the operating space on both sides of the chip becomes smaller, it is no longer easy to remove large chips from the insulating body manually. Furthermore, the need to use clamps to assemble the chip onto the insulating body makes the installation process cumbersome. If the clamps need to carry large chips, the design of the clamps requires higher standards, which increases costs.

[0004] Therefore, it is necessary to design a new connector combination to overcome the above-mentioned defects. [Utility Model Content]

[0005] The purpose of this invention is to provide a connector assembly in which a chip slides into the upper cover through the insertion interface and is installed on the upper cover. The hook arm is fixed to the lower surface of the chip substrate. The upper cover carries the chip and rotates around the fixing base to close on the top of the electrical connector. This method of installing the chip through the upper cover eliminates the need for clamping components, saves costs, and simplifies the installation process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A connector assembly is mounted on a circuit board having an electrical connector electrically connected to a chip. The chip includes a substrate and a protrusion extending upward from the substrate. The assembly includes: a mounting base mounted on the outside of the electrical connector; and a top cover pivotally connected to the rear end of the mounting base, allowing the top cover to rotate around the mounting base. The top cover includes a main body, an opening, and a plurality of hook arms. The opening extends vertically through the main body to at least partially expose the electrical connector. The top cover includes an inner edge adjacent to the opening and an outer edge away from the opening. The opening extends forward through the top cover and forms a insertion interface at the front end of the top cover. The plurality of hook arms are distributed on the left and right sides and the rear side of the opening, wherein each hook arm is connected to the main body at a position near the opening on a relative outer edge. The chip slides into the opening from the insertion interface, such that the hook arms hook onto the lower surface of the substrate. The main body and the hook arms are located on the upper and lower sides of the substrate, and the protrusion is exposed through the opening. The top cover, carrying the chip, rotates around the mounting base to cover the electrical connector.

[0008] Furthermore, the chip has a center line extending in the left-right direction, and at least one of the multiple hook arms arranged on the left and right sides of the opening is positioned close to the insertion interface relative to the center line.

[0009] Furthermore, at least one hook arm is positioned on each of the left and right sides of the opening, close to the insertion interface relative to the center line, and the hook arms on the left and right sides of the opening are aligned.

[0010] Furthermore, the electrical connector has a recessed clearance groove for each hook arm. When the top cover carrying the chip rotates around the fixing seat and closes on top of the electrical connector, the hook arm protrudes into the corresponding clearance groove.

[0011] Furthermore, the clearance groove is recessed above the electrical connector and extends outward, and the clearance groove extends inward to the bottom of the chip in the front-back direction or the left-right direction.

[0012] Furthermore, the mounting base is provided with at least one protrusion corresponding to at least one clearance groove, and each protrusion extends toward one of the clearance grooves.

[0013] Furthermore, the top cover is made of a single piece of metal sheet through stamping.

[0014] Furthermore, the top cover includes multiple positioning portions disposed on the left and right sides and the rear side of the opening, the multiple positioning portions being used to abut against the substrate in the front-back direction and the left-right direction.

[0015] Furthermore, two positioning parts are provided on the left and right sides and the rear side of the opening, and at least one hook arm is provided between the two positioning parts.

[0016] Furthermore, the upper surface of the main body is recessed downward to form multiple pressing parts, which are provided on the left and right sides of the opening. The pressing parts are used to press the chip downward, and a pressing part is provided on the left and right sides of the opening and on the front and rear sides of the hook arm.

[0017] Furthermore, a heat sink is installed on top of the connector assembly for heat dissipation of the chip. The mounting base is provided with multiple locking members extending upward. The main body is provided with multiple through holes corresponding to the multiple locking members on the left and right sides. Each locking member passes upward through the corresponding through hole, so that the multiple locking members cooperate with multiple fasteners to lock the heat sink to the connector assembly. On the same side of the left and right sides of the opening, each through hole is provided with one of the pressing parts in the left and right direction, and is located on the outside of the hook arm in the left and right direction.

[0018] Furthermore, in the front-to-back direction, the top cover protrudes beyond the front end of the chip.

[0019] Furthermore, the top cover includes multiple fixing holes, each fixing hole fixing the top cover to the fixing base by a fixing member. In the front-rear direction, at least a portion of the multiple fixing holes are located closer to the insertion interface than the hook arm, and are located on the part of the top cover that protrudes from the front end of the chip. On the same side of the left and right sides of the opening, the fixing hole located on the part that protrudes from the front end of the chip is located outside the hook arm in the left-right direction.

[0020] Compared with the prior art, the connector assembly of this utility model has the following advantages: a through-hole is provided through the opening of the top cover, and multiple hook arms are distributed on the left, right and rear sides of the opening. The chip slides into the top cover through the through-hole and is installed on the top cover. The hook arms are fixed to the lower surface of the chip substrate. The top cover carries the chip and rotates around the fixing seat to close the cover on the top of the electrical connector. This method of installing the chip through the top cover eliminates the need for clamping parts, saves costs and simplifies the installation steps. [Attached Image Description]

[0021] Figure 1 This is an exploded perspective view of the connector assembly of this utility model;

[0022] Figure 2 for Figure 1 A perspective view of the upper and middle covers mounted on the mounting base, with the chip not yet mounted on the upper cover;

[0023] Figure 3 for Figure 2 A 3D view of the chip installed on the top cover;

[0024] Figure 4 for Figure 2 Only the top cover and the chip are shown in the front view;

[0025] Figure 5 for Figure 3 A perspective view of the upper and middle covers rotating around the fixed base and fitting into the electrical connector;

[0026] Figure 6 for Figure 5 A sectional view taken along line AA.

[0027] Figure 7 This is a 3D view of the connector assembly, circuit board, and heat sink after assembly.

[0028] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0029] Pivot 13 Backplate 2 Convex hull 21 Top cover 3 Main body 31 Inner edge 31A Outer edge 31B Fixing hole 311 Through hole 312 Pressing part 313 Opening 32 Socket 321 Hook arm 33 Positioning unit 34 Pivot section 35 Fastener 4 Nut 41 Screw 42 Fastener 5 Bolt 51 Nut 52 Locking component 6 Firmware 7 Circuit board 200 Electrical connector 201 Containment cavity 2011 2012 clearance slot Chip 300 Substrate 301 Protrusion 302 Centerline L Radiator 400

Detailed Implementation Methods

[0030] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] For ease of understanding, we define the Z-axis extension direction as the up-down direction (where the positive Z-axis direction is the up direction), the Y-axis extension direction as the left-right direction (where the positive Y-axis direction is the right direction), and the X-axis direction as the front-back direction (where the positive X-axis direction is the front direction).

[0032] like Figures 1 to 7 The diagram shown is a related illustration of the connector assembly 100 of this utility model. Figure 1 and Figure 5 As shown, connector assembly 100 is mounted on a circuit board 200 having an electrical connector 201, and the electrical connector 201 is electrically connected to a chip 300. A heat sink 400 is mounted above the chip 300 for heat dissipation of the chip 300.

[0033] like Figure 1 and Figure 6 As shown, the electrical connector 201 has a receiving cavity 2011 for accommodating the chip 300. The receiving cavity 2011 extends upward through the electrical connector 201. The upper surfaces of the left and right sides and the upper surface of the rear side of the electrical connector 201 are respectively recessed downward and extend outward to form a relief groove 2012. The relief grooves 2012 on the left and right sides of the electrical connector 201 extend inward in the left-right direction to the bottom of the chip 300, and the relief groove 2012 on the rear side of the electrical connector 201 extends inward in the front-back direction to the bottom of the chip 300.

[0034] like Figure 1 and Figure 4As shown, the chip 300 includes a substrate 301 and a protruding portion 302 formed upward from the base. The chip 300 has a center line L extending in the left-right direction. In this embodiment, the protruding portion 302 is in a stage shape. On the horizontal plane perpendicular to the up-down direction, the protruding portion 302 does not extend beyond the substrate 301. That is, the protruding portion 302 does not extend beyond the substrate 301 in the front-back direction and the left-right direction.

[0035] like Figure 1 and Figure 7 As shown, the connector assembly 100 includes a mounting base 1 surrounding the electrical connector 201, a back plate 2 mounted on the lower surface of the circuit board 200, and an upper cover 3 covering the electrical connector 201 and pivotally connected to one end of the mounting base 1. The connector assembly 100 also includes a plurality of fasteners 4, a plurality of fixing members 5, a plurality of locking members 6, and a plurality of locking members 7.

[0036] like Figure 1 and Figure 6 As shown, the mounting base 1 is mounted on the upper surface of the circuit board 200. The mounting base 1 is made of metal and includes a window 11 that extends vertically through the mounting base 1. The electrical connector 201 is accommodated in the window 11. The mounting base 1 has protrusions 12 extending from the left and right edges of the window 11 toward each clearance groove 2012, forming a protrusion 12. The clearance groove 2012 is located between the electrical connector 201 and the protrusion 12. The mounting base 1 is provided with a pivot portion 13, which, in this embodiment, is located behind the window 11.

[0037] like Figure 1 and Figure 2 As shown, the upper cover 3 is integrally stamped from a metal sheet. The upper cover 3 includes a main body 31, an opening 32 that runs vertically through the main body 31, multiple hook arms 33, multiple positioning parts 34, and a pivot part 35. The opening 32 runs vertically through the main body 31. The multiple hook arms 33 and multiple positioning parts 34 are respectively arranged around the opening 32. The pivot part 35 is connected to the rear end of the main body 31 and is pivotally connected to the pivot part 13, so that the upper cover 3 can rotate relative to the rear end of the fixed base 1. It can switch between an open position and a closed position. In the closed position, the upper cover 3 covers the electrical connector 201.

[0038] like Figure 1 and Figure 2 , Figure 5As shown, opening 32 is used to accommodate protrusion 302. Opening 32 extends forward through main body 31 and forms an insertion interface 321 at the front end of main body 31. The upper surface of main body 31 is recessed downward and protrudes relative to the lower surface of main body 31 to form a plurality of pressing parts 313. The pressing parts 313 are used to press the chip 300 downward when the upper cover 3 is in the closed position. The upper cover 3 includes an inner edge 31A adjacent to opening 32 and an outer edge 31B away from opening 32. Each hook arm 33 is connected to main body 31 at a position relative to outer edge 31B and close to opening 32. Hook arm 33 is used to hook the lower surface of chip 300. In this embodiment, the connection point of hook arm 33 to main body 31 is a certain distance from the inner edge. In other embodiments, hook arm 33 may extend from the inner edge. Multiple positioning parts 34 are used to position the chip 300. Multiple hook arms 33 and multiple positioning parts 34 are distributed on the left and right sides and the rear side of the opening 32. Multiple pressing parts 313 are distributed on the left and right sides of the opening 32. Specifically, since the upper cover 3 is formed by integral stamping of a metal sheet, a pressing part 313 is provided on both the front and rear sides of the hook arm 33. A hook arm 33 and two positioning parts 34 are distributed on the left and right sides and the rear side of the opening 32. The hook arms 33 on the left and right sides of the opening 32 are located between two adjacent positioning parts 34, and the hook arm 33 on the rear side of the opening 32 is located between two adjacent positioning parts 34. In other embodiments, multiple hook arms 33 and one positioning part 34, or multiple hook arms 33 and multiple positioning parts 34, can also be provided on the left and right sides and the rear side of the opening 32.

[0039] like Figure 1 As shown, the main body 31 includes a plurality of fixing holes 311, which extend vertically through the main body 31. The fixing holes 311 are located at the four corners on the left and right sides of the main body 31. Each fixing hole 311 allows a fixing member 5 to pass through. Some of the fixing holes 311 are located closer to the insertion interface 321 than the hook arm 33. In this embodiment, there are four fixing holes 311. The main body 31 has two fixing holes 311 on each side of the opening 32, and one of the fixing holes 311 on each side is located closer to the insertion interface 321 than the hook arm 33. In other embodiments, the required number of fixing holes 311 can be set as needed.

[0040] like Figure 1As shown, the main body 31 also includes multiple through holes 312, which penetrate the main body 31 vertically. The multiple through holes 312 are disposed on the left and right sides and the rear side of the opening 32 on the main body 31. On the same side of the left and right sides of the opening 32, each through hole 312 is disposed in the left and right direction corresponding to one of the pressing parts 313, so as to ensure the structural strength of the main body 31 and avoid the through holes 312 being disposed in relation to the hook arm 33, which would weaken the strength of the main body 31. The fixing hole 311 and the through hole 312 are located on the outside of the hook arm 33 in the left and right direction.

[0041] like Figure 5 As shown, when the chip 300 is mated to the electrical connector 201 and the upper cover 3 is closed on the electrical connector 201, multiple fasteners 5 fix the upper cover 3 and the fixing base 1 together. In this embodiment, the fastener 5 consists of a bolt 51 and a nut 52, wherein the bolt 51 is positioned in the fixing hole 311 of the upper cover 3 and the nut 52 is fixed on the fixing base 1. In other embodiments, the nut 52 can also be positioned in the fixing hole 311 of the upper cover 3 and the bolt 51 can be fixed on the fixing base 1.

[0042] like Figure 1 As shown, the back plate 2 is formed by stamping a metal sheet, and the upper surface of the back plate 2 arches upward at the middle position of the back plate 2 to form a protrusion 21. The protrusion 21 is used to contact the lower surface of the circuit board 200 to prevent the circuit board 200 from warping excessively.

[0043] like Figure 1 and Figure 6 As shown, multiple fasteners 4 secure the back plate 2, circuit board 200, and mounting base 1 together. In this embodiment, the fastener 4 consists of a nut 41 and a screw 42, wherein the screw 42 is positioned on the back plate 2 and the nut 41 is fixed on the mounting base 1. In other embodiments, the nut 41 may be positioned on the back plate 2 and the screw 42 may be fixed on the base plate of the mounting base 1.

[0044] like Figure 1 , Figure 5 and Figure 7 As shown, multiple locking parts 6 and multiple locking fasteners 7 are threaded together to fix the heat sink 400 and the fixing base 1 together. The locking parts 6 are fixed to the fixing base 1, and a portion of the multiple locking parts 6 passes through multiple through holes 312 one by one. In this embodiment, the locking parts 6 are screws and the locking fasteners 7 are nuts 52. Of course, in other embodiments, the locking parts 6 can also be nuts and the locking fasteners 7 can be screws.

[0045] like Figure 3 and Figure 6As shown, the screw 42 of the fastener 4 passes upward through the back plate 2, the circuit board 200, and the fixing seat 1. The screw 42 and the nut 41 are threaded together, so that the back plate 2, the circuit board 200, and the fixing seat 1 are fixed together. Multiple fasteners 4 are set on the front and rear sides and the left and right sides of the fixing seat 1. Since the left and right sides of the fixing seat 1 are provided with corresponding through holes (unlabeled) for the screw 42 to pass through, the structural strength of the side of the fixing seat 1 near the electrical connector 201 is weakened. Therefore, each fastener 4 located on the left and right sides of the fixing seat 1 is provided with a corresponding protrusion 12 to enhance the structural strength of the fixing seat 1.

[0046] like Figure 2 and Figure 3 As shown, the pivot portion 35 of the upper cover 3 is pivotally connected to the pivot portion 13 of the fixing base 1. When the upper cover 3 is not closed to the electrical connector 201, the chip 300 slides from the outside to the inside of the insertion interface 321 of the upper cover 3 and is installed into the opening 32, so that the hook arm 33 hooks onto the lower surface of the substrate 301 of the chip 300, and the protrusion 302 is exposed in the opening 32. At this time, the hook arm 33 and the main body 31 clamp the chip 300 to prevent the chip 300 from falling out of the upper cover 3, maintain the stability of the chip 300, and the positioning portion 34 positions the substrate 301 of the chip 300. Furthermore, as Figure 5 As shown, the pressing portions 313 distributed on the left and right sides of the opening 32 press against the steps of the stepped protrusions 302 of the chip 300. Figure 4 As shown, since the center of gravity of the chip 300 is located on the center line L, the hook arms 33 on each side of the opening 32 are further positioned relative to the center line L of the chip 300 and close to the insertion interface 321. When multiple hook arms 33 are provided on each side of the opening 32, it is sufficient that at least one hook arm 33 on each side of the opening 32 is positioned relative to the center line L of the chip 300 and close to the insertion interface 321. Specifically, the hook arm 33 includes a front edge and a rear edge that are positioned opposite each other. The front edge of the hook arm 33 is positioned closer to the insertion interface 312 than the center line L of the chip 300. This can balance the supporting forces on the left and right sides and the front and rear sides of the center line L of the chip 300, so as to maintain the stability of the chip 300 installation and prevent the chip 300 from tilting back and forth and becoming unstable during installation.

[0047] like Figure 3 and Figure 4As shown, since the fixing hole 311 is formed by stamping the upper cover 3, the lower end of the fixing hole 311 protrudes from the lower surface of the main body 31. Therefore, for the same side on both sides of the opening 32, the fixing hole 311 is located outside the corresponding hook arm 33 in the left-right direction. This ensures that when the chip 300 slides into the insertion interface 321, the substrate 301 of the chip 300 does not scrape against the lower end of the fixing hole 311, thereby reducing the scraping of the substrate 301 during the sliding installation and ensuring the performance of the chip 300.

[0048] like Figure 5 and Figure 6 As shown, the upper cover 3 carrying the chip 300 rotates around the fixing base 1 and closes the cover above the electrical connector 201 to the closed position. In the vertical direction, the hook arm 33 protrudes into the corresponding relief groove 2012, so that a part of the hook arm 33 is located between the electrical connector 201 and the protrusion 12, so as to prevent the hook arm 33 from protruding into the electrical connector 201 and damaging the terminals inside the electrical connector 201, thus affecting the performance of the electrical connector 201.

[0049] like Figure 4 and Figure 6 As shown, the locking member 6 passes upward through the corresponding through hole 312, and the upper cover 3 is fixed to the fixing base 1 by multiple fasteners 5. Specifically, the bolt 51 positioned on the upper cover 3 is locked to the nut 52 fixed on the fixing base 1. In the front-rear direction, the upper cover 3 protrudes from the front end of the chip 300 to protect the front end of the chip 300. Furthermore, a fixing hole 311 is provided on the part of the upper cover 3 that protrudes from the front end of the chip 300, which is closer to the insertion interface 321 than the hook arm 33, so that the chip 300 can be subjected to the pressing force of the upper cover 3 as much as possible.

[0050] like Figure 7 As shown, after the upper cover 3 is closed on the electrical connector 201, the locking member 6 passes through the heat sink 400 and engages with the locking fastener 7 through a threaded connection, fixing the heat sink 400 to the fixing base 1. At this time, the assembly of the connector assembly 100 and the heat sink 400 is completed.

[0051] like Figure 2 As shown, after removing the heat sink 400 from the mounting base 1, the fixing piece 5 is unlocked and the upper cover 3 is opened. That is, the upper cover 3 is rotated around the mounting base 1 to the open position. At this time, the upper cover 3 is set diagonally upward. Then the operator slides the chip 300 from the upper cover 3 diagonally upward out of the opening 32 to the insertion interface 321. At this time, the operator takes out the chip 300 from the insertion interface 321.

[0052] In summary, the connector assembly 100 of this utility model has the following beneficial effects:

[0053] (1) Compared with the prior art, the present invention has a forward-through insertion interface 321 provided through the opening 32 of the upper cover 3, and multiple hook arms 33 are distributed on the left, right and rear sides of the opening 32. The chip 300 slides into the upper cover 3 through the insertion interface 321 and is installed on the upper cover 3. The hook arms 33 are fixed to the lower surface of the substrate 301 of the chip 300. The upper cover 3 carries the chip 300 and rotates around the fixing seat 1 to cover the electrical connector 201. This method installs the chip 300 through the upper cover 3, omitting the setting of clamping parts, saving costs, and simplifying the installation steps.

[0054] (2) At least one hook arm 33 is distributed on the left and right sides and the rear side of the opening 32 to limit the chip 300. Since the center of gravity of the chip 300 is located on the center line L, the hook arms 33 on each side of the opening 32 are further positioned close to the insertion interface 321 relative to the center line L of the chip 300. When multiple hook arms 33 are provided on each side of the opening 32, it is sufficient that at least one hook arm 33 on each side of the opening 32 is positioned close to the insertion interface 321 relative to the center line L of the chip 300. Specifically, the hook arm 33 includes a front edge and a rear edge that are positioned opposite each other. The front edge of the hook arm 33 is positioned closer to the insertion interface 312 than the center line L of the chip 300. This can balance the supporting force on the left and right sides and the front and rear sides of the center line L of the chip 300, so as to maintain the stability of the chip 300 installation and prevent the chip 300 from tilting back and forth and becoming unstable during installation.

[0055] (3) On the same side of the left and right sides of the opening 32, each through hole 312 is provided with one of the pressing parts 313 in the left and right direction to ensure the structural strength of the main body 31 and avoid the through hole 312 being provided with the hook arm 33, which would weaken the strength of the main body 31.

[0056] (4) The upper surfaces of the left and right sides and the upper surface of the rear side of the electrical connector 201 are respectively recessed downward and extend outward to form a relief groove 2012. The relief groove 2012 is located between the electrical connector 201 and the protrusion 12. The hook arm 33 protrudes into the corresponding relief groove 2012 to prevent the hook arm 33 from protruding into the electrical connector 201 and damaging the terminals inside the electrical connector 201, thus affecting the performance of the connector.

[0057] (5) The left and right sides of the fixing seat 1 protrude into each relief groove 2012 to form a protrusion 12. The screw 42 passes upward through the back plate 2, the circuit board 200 and the fixing seat 1. The screw 42 and the nut 41 are threaded together, so that the back plate 2, the circuit board 200 and the fixing seat 1 are fixed together. Since the left and right sides of the fixing seat 1 are provided with corresponding through holes (unlabeled) for the screw 42 to pass through, the structural strength of the side of the fixing seat 1 close to the electrical connector 201 is weakened. Therefore, fasteners 4 are provided on the left and right sides of the fixing seat 1 corresponding to each protrusion 12, and the protrusion 12 is used to enhance the structural strength of the fixing seat 1.

[0058] (6) Since the fixing hole 311 is formed by stamping the upper cover 3, the lower end of the fixing hole 311 protrudes from the lower surface of the main body 31. Therefore, for the same side of the left and right sides of the opening 32, the fixing hole 311 is located outside the hook arm 33 in the left and right direction. The substrate 301 of the chip 300 does not slide to the lower end of the fixing hole 311, thereby reducing the scratches that the substrate 301 is subjected to when it is slid in and installed, and ensuring the performance of the chip 300.

[0059] (7) In the front-back direction, the upper cover 3 protrudes from the front end of the chip 300 to protect the front end of the chip 300. Furthermore, a fixing hole 311 is provided on the part of the upper cover 3 that protrudes from the front end of the chip 300, which is closer to the insertion interface 321 than the hook arm 33, so that the chip 300 can be subjected to the pressing force of the upper cover 3 as much as possible.

[0060] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A connector assembly, mounted on a circuit board having an electrical connector, wherein the electrical connector is electrically connected to a chip, the chip comprising a substrate and a protrusion extending upward from the substrate, characterized in that, include: A mounting base is installed on the outside of the electrical connector; A top cover is pivotally connected to the rear end of a fixed base, allowing the top cover to rotate around the fixed base. The top cover includes a main body, an opening, and a plurality of hook arms. The opening extends vertically through the main body to at least partially expose an electrical connector. The top cover includes an inner edge adjacent to the opening and an outer edge away from the opening. The opening extends forward through the top cover and forms a plug-in interface at the front end of the top cover. The plurality of hook arms are distributed on the left and right sides and the rear side of the opening, wherein each hook arm is connected to the main body at a position near the opening on the opposite outer edge. The chip slides into the opening from the insertion interface, so that the hook arm hooks onto the lower surface of the substrate. The main body and the hook arm are located on the upper and lower sides of the substrate, and the protrusion is exposed in the opening. The top cover carrying the chip rotates around the fixing base and closes on the top of the electrical connector.

2. The connector assembly of claim 1, wherein: The chip has a center line extending in the left-right direction, and at least one of the multiple hook arms arranged on the left and right sides of the opening is positioned close to the insertion interface relative to the center line.

3. The connector assembly of claim 2, wherein: There is at least one hook arm on each side of the opening, which is positioned close to the insertion interface relative to the center line, and the hook arms on the left and right sides of the opening are aligned.

4. The connector assembly of claim 1, wherein: Each hook arm of the electrical connector has a recessed clearance groove. When the top cover carrying the chip rotates around the fixing base and closes on the top of the electrical connector, the hook arm protrudes into the corresponding clearance groove.

5. The connector assembly of claim 4, wherein: The clearance groove is recessed above the electrical connector and extends outward, and extends inward to the bottom of the chip in either the front-back or left-right direction.

6. The connector assembly of claim 4, wherein: The mounting base is provided with at least one protrusion corresponding to at least one clearance groove, and each protrusion extends toward one of the clearance grooves.

7. The connector assembly of claim 1, wherein: The top cover is made of a single piece of metal sheet through stamping.

8. The connector assembly of claim 1, wherein: The top cover includes multiple positioning parts disposed on the left and right sides and the rear side of the opening, which are used to abut against the substrate in the front-back direction and the left-right direction.

9. The connector assembly of claim 8, wherein: Two positioning parts are provided on the left, right and rear sides of the opening, and at least one hook arm is provided between the two positioning parts.

10. The connector assembly of claim 1, wherein: The upper surface of the main body is recessed downward to form multiple pressing parts. These pressing parts are located on the left and right sides of the opening. The pressing parts are used to press the chip downward. A pressing part is also provided on the left and right sides of the opening and on the front and rear sides of the hook arm.

11. The connector assembly of claim 10, wherein: A heat sink is installed on top of the connector assembly for heat dissipation of the chip. The mounting base is provided with multiple locking members extending upward. The main body is provided with multiple through holes corresponding to the multiple locking members on the left and right sides. Each locking member passes upward through the corresponding through hole, so that the multiple locking members cooperate with multiple fasteners to lock the heat sink to the connector assembly. On the same side of the left and right sides of the opening, each through hole is provided with one of the pressing parts in the left and right direction, and is located on the outside of the hook arm in the left and right direction.

12. The connector assembly as claimed in claim 1, characterized in that: In the front-to-back direction, the top cover protrudes beyond the front end of the chip.

13. The connector assembly of claim 12, wherein: The top cover includes multiple fixing holes, each fixing hole is fixed to the fixing base by a fixing member. In the front-back direction, at least a portion of the multiple fixing holes are located closer to the insertion interface than the hook arm, and are located on the part of the top cover that protrudes from the front end of the chip. On the same side of the left and right sides of the opening, the fixing hole located on the part that protrudes from the front end of the chip is located outside the hook arm in the left-right direction.

Images