TWI898885B - Connector assembly and connector - Google Patents

Abstract

A connector assembly includes a first circuit board, a first connector, a second circuit board, a second connector, a plug, and a blocking portion. The first connector is disposed on the first circuit board. The first connector includes a first conductive terminal, a first busbar, and a first sleeve. The first busbar is connected to the first conductive terminal. The second connector is disposed on the second circuit board. The second connector includes a second conductive terminal, a second busbar, and a second sleeve. The second busbar is connected to the second conductive terminal. The second sleeve is connected to the second busbar. The plug passes through the first sleeve of the first connector and the second sleeve of the second connector. The blocking portion is disposed on the plug. A diameter of the blocking portion is greater than a diameter of the plug.

Description

Connector assemblies and connectors

The present disclosure relates to a connector assembly and a connector, and in particular to a bus connector assembly and a bus connector.

Typically, a connector (e.g., a card-edge connector) for reading expansion cards is mounted on a circuit board (e.g., a motherboard). Therefore, when a user inserts an expansion card into a slot on the connector, the circuit board can read the expansion card's electrical signals (including receiving and transmitting current).

With the increasing demand for high current transmission and the need to simultaneously read multiple expansion cards, a hardware architecture that can accommodate multiple connectors, ensure structural stability between multiple connectors, and serially connect electrical signals from different expansion cards is becoming increasingly necessary. However, existing products have failed to provide a connector assembly that satisfies users.

Therefore, how to propose a connector assembly and connector that can solve the above problems is one of the problems that the industry is eager to invest research and development resources to solve.

In view of this, one object of the present disclosure is to provide a connector assembly and a connector that can solve the above-mentioned problems.

In order to achieve the above-mentioned purpose, according to one embodiment of the present disclosure, a connector assembly includes a first circuit board, a first connector, a second circuit board, a second connector, a latch and a stopper. The first connector is arranged on the first circuit board. The first connector includes a first conductive terminal, a first bus and a first sleeve. The first bus is connected to the first conductive terminal. The first sleeve is connected to the first bus. The second circuit board is separated from the first circuit board. The second connector is arranged on the second circuit board. The second connector includes a second conductive terminal, a second bus and a second sleeve. The second bus is connected to the second conductive terminal. The second sleeve is connected to the second bus. The latch passes through the first sleeve of the first connector and the second sleeve of the second connector. The stopper is arranged on the latch. The stopper abuts or is fixed to the first connector.

In one or more embodiments of the present disclosure, the stopper abuts against the top of the first sleeve.

In one or more embodiments of the present disclosure, the first connector further includes a first housing enclosing the first conductive terminal and a first cover enclosing the first bus bar. The first housing includes a first reverse hook. The first cover includes a first latch hook. The first housing and the first cover are engaged with each other via the first reverse hook and the first latch hook, respectively.

In one or more embodiments of the present disclosure, the first housing further comprises a first slot and a second slot separated from the first slot. The first conductive terminal comprises a first end portion corresponding to the first slot and a second end portion corresponding to the second slot.

In one or more embodiments of the present disclosure, the second end of the first conductive terminal clamps the first bus bar.

In one or more embodiments of the present disclosure, the first cover further includes a first cover body, a first top plate, and a first partition. The first top plate covers the first cover body. The first partition is disposed between the first cover body and the first top plate. The first partition, the first cover body, and the first top plate collectively define two receiving cavities of the first cover.

In one or more embodiments of the present disclosure, the first sleeve is located in one of the two accommodating cavities and penetrates the first cover body and the first top plate.

In one or more embodiments of the present disclosure, the first bus bar includes one or more first vertical extensions, one or more first bends, and a first horizontal extension. The one or more first vertical extensions contact the first conductive terminal. The one or more first bends connect the one or more first vertical extensions. The first horizontal extension connects the one or more first bends.

In one or more embodiments of the present disclosure, the connector assembly further includes a crown spring. The first sleeve has a hollow through-hole. The crown spring surrounds the inner surface of the hollow through-hole. The crown spring clamps the latch.

In one or more embodiments of the present disclosure, the first sleeve includes a sleeve body, a cap, and an interference portion. The sleeve body is connected to the first bus bar. The cap is located at the top of the sleeve body and rests on the surface of the first bus bar. The cap has a diameter larger than the diameter of the sleeve body. The interference portion is disposed on the sleeve body and engages with the first bus bar.

In one or more embodiments of the present disclosure, the width of the stopper portion is greater than the width of the latch.

In one or more embodiments of the present disclosure, the first conductive terminal includes one or a combination of the following fixed to each other: a fixed conductive terminal including a first end, a second end, a fixing portion, and a solder pin; and a suspended conductive terminal including a first end, a second end, and a fixing portion.

In one or more embodiments of the present disclosure, the first end, the second end, the fixing portion, and the soldering pins of the fixed conductive terminal are located on the same plane.

To achieve the above objectives, according to one embodiment of the present disclosure, a connector includes a first housing, a plurality of first conductive terminals, a first bus, and a first sleeve. The first housing has a first slot and a second slot separated from the first slot. The first slot is for inserting an expansion card. Each of the first conductive terminals includes a first end corresponding to the first slot and a second end corresponding to the second slot. One end of the first bus is located in the second slot and connected to the second end. The first sleeve is connected to the other end of the first bus and has a hollow groove or through hole.

In one or more embodiments of the present disclosure, the connector further includes a crown spring wrapped around an inner surface of the groove or through hole.

In one or more embodiments of the present disclosure, the first bus bar includes one or more vertical extensions, one or more first bends, and a first horizontal extension. The one or more first vertical extensions contact the second end. The one or more first bends connect the one or more first vertical extensions. A first horizontal extension connects the one or more first bends.

In one or more embodiments of the present disclosure, the first conductive terminal includes one or a combination of the following fixed to each other: a fixed conductive terminal including a first end, a second end, a fixing portion, and a solder pin; and a suspended conductive terminal including a first end, a second end, and a fixing portion.

In one or more embodiments of the present disclosure, the first end, the second end, the fixing portion, and the soldering pins of the fixed conductive terminal are located on the same plane.

In one or more embodiments of the present disclosure, the connector further includes a cover. The cover includes two cavities. The two cavities are separated by a partition. The first bus is received in one of the two cavities.

In one or more embodiments of the present disclosure, the two accommodating cavities each have an opening for heat dissipation.

In summary, in the connector assembly and connector disclosed herein, the first cover and the first housing are engaged with each other via the first hook and the first reverse hook, respectively. This stabilizes the connection structure between the first conductive terminal, the first bus bar, and the first sleeve, thereby ensuring the overall structural stability of the first connector. In the connector assembly and connector disclosed herein, the second cover and the second housing are also engaged with each other via the second hook and the second reverse hook, respectively. This stabilizes the connection structure between the second conductive terminal, the second bus bar, and the second sleeve, thereby ensuring the overall structural stability of the second connector. In the connector assembly and connector disclosed herein, because the latch simultaneously passes through the first sleeve of the first connector and the second sleeve of the second connector, the electrical signal from the expansion card read by the second circuit board can be transmitted to the first circuit board via the latch, thereby serially connecting the electrical signals from different expansion cards in different connectors. In the connector assembly and connector disclosed herein, because the stopper is located in the middle of the latch and has a diameter larger than the diameter of the latch, the second connector is separated from the first connector by a certain distance, thereby achieving structural stability for the first and second connectors in the connector assembly. In the connector assembly and connector disclosed herein, crown springs are wrapped around the inner surfaces of the first and second sleeves. These crown springs not only increase the contact area between the latch and the first and second sleeves, thereby meeting the requirement for high current transmission, but also provide a positive force between the latch and the first and second sleeves, thereby assisting in securing the second connector to the latch. In summary, the connector assembly disclosed herein not only allows for serial connection of electrical signals from multiple expansion cards on multiple connectors, but also ensures structural stability for the multiple connectors within the overall connector assembly.

The above description is merely intended to illustrate the problems to be solved by the present disclosure, the technical means for solving the problems, and the resulting effects, etc. The specific details of the present disclosure will be described in detail in the following embodiments and related drawings.

The following figures illustrate various embodiments of the present disclosure. For the sake of clarity, numerous practical details are included in the following description. However, it should be understood that these practical details should not be construed as limiting the present disclosure. In other words, these practical details are not essential to some embodiments of the present disclosure. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form. The same reference numerals are used throughout the drawings to indicate identical or similar components.

The following describes in detail the structure, function, and connection relationship between the components of the connector assembly CA of this embodiment.

Please refer to Figure 1. Figure 1 is a three-dimensional diagram of a connector assembly CA according to one embodiment of the present disclosure. As shown in Figure 1, in this embodiment, the connector assembly CA includes a circuit board PCB1, a connector 100, a circuit board PCB2, a connector 200, a latch 160A, a latch 160B, a stopper 170A, and a stopper 170B. Connector 100 is disposed on circuit board PCB1. Connector 200 is disposed on circuit board PCB2. Circuit board PCB1 and circuit board PCB2 are independently separated from each other. In some embodiments, circuit board PCB2 is located above circuit board PCB1 and is parallel to each other. Connector 100 is configured for insertion of expansion card C1, and connector 200 is configured for insertion of expansion card C2. Latch 160A and latch 160B can be cylindrical and electrically connect connector 100 and connector 200. With this structural configuration, when circuit board PCB1 reads the electrical signal from expansion card C1 and circuit board PCB2 reads the electrical signal from expansion card C2, connector 200 can transmit the electrical signal from expansion card C2, as read by circuit board PCB2, to circuit board PCB1 via latch 160A and latch 160B. In this way, connector assembly CA can couple the electrical signals from expansion card C1 and expansion card C2, simultaneously receiving the electrical signals from expansion card C1 and expansion card C2 through circuit board PCB1.

Please continue to refer to Figure 1. As shown in Figure 1, in this embodiment, the connector 100 includes a conductive terminal 110, a shell 120, a bus 130A, a bus 130B, a cover 140, a sleeve 150A, and a sleeve 150B. The shell 120 covers a plurality of conductive terminals 110. The shell 120 has at least one slot, and the slot is configured for insertion of the expansion card C1. The plurality of conductive terminals 110 are arranged on the circuit board PCB1, and a portion of the plurality of conductive terminals 110 is located in at least one slot to mate with the expansion card C1. The bus 130A and the bus 130B connect the plurality of conductive terminals 110. The cover 140 covers the bus 130A and the bus 130B. Sleeves 150A and 150B are connected to bus 130A and bus 130B, respectively, and have hollow grooves or through holes. As shown in FIG1 , housing 120 includes a hook 125. Cover 140 includes a cover body 142, a snap-fit structure, and a top plate 148. The snap-fit structure is used to snap with hook 125. The snap-fit structure includes a pressing portion 143, a connecting arm 144, and a hook 145. The pressing portion 143 is disposed on a side surface of the cover body 142. The pressing portion 143 and the hook 145 are located at both ends of the connecting arm 144. In other words, the connecting arm 144 is connected between the hook 145 and the pressing portion 143. The pressing portion 143 and the hook 145 swing relative to the cover body 142. A top plate 148 covers the cover body 142. The cover body 140 may further include a partition 146 disposed between the cover body 142 and the top plate 148 to electrically isolate the bus 130A from the bus 130B. The partition 146, the cover body 142, and the top plate 148 collectively define two cavities for accommodating the bus 130A and the bus 130B, respectively. Each cavity forms an opening OA and an opening OB on the cover body 140. Specifically, the partition 146 divides the space formed by the cover body 142 and the top plate 148 into two cavities, each with an opening OA and an opening OB for heat dissipation. As shown in Figure 1 , the housing 120 and the cover body 140 are engaged with each other via the inverted hook 125 and the hook 145 , respectively. Sleeves 150A and 150B are positioned within the two cavities of the cover body 140 , respectively. Sleeves 150A and 150B penetrate the cover body 142 and the top plate 148 .

Please continue to refer to Figure 1. As shown in Figure 1, in this embodiment, the connector 200 includes a conductive terminal 210, a shell 220, a bus 230A, a bus 230B, a cover 240, a sleeve 250A, and a sleeve 250B. The shell 220 covers a plurality of conductive terminals 210. The shell 220 has at least one slot, and the slot is configured for insertion of the expansion card C2. The plurality of conductive terminals 210 are arranged on the circuit board PCB2, and a portion of the plurality of conductive terminals 210 is located in at least one slot to mate with the expansion card C2. The bus 230A and the bus 230B connect the plurality of conductive terminals 210. The cover 240 covers the bus 230A and the bus 230B. Sleeves 250A and 250B are connected to busbars 230A and 230B, respectively. As shown in FIG1 , housing 220 includes a hook 225. Cover 240 includes a cover body 242, a snap-fit structure, and a top plate 248. The snap-fit structure is used to snap with hook 225. The snap-fit structure includes a pressing portion 243, a connecting arm 244, and a hook 245. Pressing portion 243 is disposed on a side surface of cover body 242. Pressing portion 243 and hook 245 are located at both ends of connecting arm 244. In other words, connecting arm 244 is connected between hook 245 and pressing portion 243. The pressing portion 243 and the hook 245 swing relative to the cover body 242. The top plate 248 covers the cover body 242. The cover body 240 may further include a partition 246 disposed between the cover body 242 and the top plate 248 to electrically isolate the bus 130A from the bus 130B. The partition 246, the cover body 242, and the top plate 248 collectively define two cavities for accommodating the bus 230A and the bus 230B, respectively. Each cavity forms an opening OA and an opening OB on the cover body 240. Specifically, the partition 246 divides the space formed by the cover body 242 and the top plate 248 into two cavities, each having an opening OA and an opening OB for heat dissipation. As shown in Figure 1, the housing 220 and the cover 240 are engaged with each other via the hook 225 and the hook 245, respectively. The sleeve 250A and the sleeve 250B are respectively positioned in the two cavities of the cover 240. The sleeve 250A and the sleeve 250B pass through the cover body 242. As shown in Figure 1, the top plate 248 of the cover 240 has a plurality of through-holes PF for the latches 160A and 160B to pass through.

Please continue to refer to Figure 1. As shown in Figure 1, in this embodiment, latch 160A passes through sleeve 150A of connector 100 and sleeve 250A of connector 200. Latch 160B passes through sleeve 150B of connector 100 and sleeve 250B of connector 200. Please also refer to Figure 3. Stopper 170A is provided on latch 160A. Stopper 170B is provided on latch 160B. Stopper 170A can be integrally formed with latch 160A. Stopper 170B can be integrally formed with latch 160B. Specifically, stopper 170A and stopper 170B are located in the middle section of latch 160A and the middle section of latch 160B, respectively. In some embodiments, the distance between stopper 170A and one end of latch 160A may be shorter than the distance between stopper 170A and the other end of latch 160A; and the distance between stopper 170B and one end of latch 160B may be shorter than the distance between stopper 170B and the other end of latch 160B. In some embodiments, the diameter of stopper 170A is larger than the diameter of latch 160A and larger than the diameter of the hollow groove or through hole of sleeve 150A and sleeve 150B, and the diameter of stopper 170B is larger than the diameter of latch 160B. In some other embodiments, the stopper portion 170A and the stopper portion 170B are structures protruding from the outer surfaces of the latch 160A and the latch 160B, respectively, so that the width of the stopper portion 170A and the stopper portion 170B is respectively greater than the width of the latch 160A and the latch 160B, and also greater than the width of the hollow groove or through hole of the sleeve 150A and the sleeve 150B. This ensures that when the latch 160A passes through the sleeve 150A from top to bottom, the stop 170A abuts the top of the sleeve 150A, and when the latch 160B passes through the sleeve 150B from top to bottom, the stop 170B abuts the top of the sleeve 150B, thereby keeping the latches 160A and 160B stationary relative to the connector 100.

In some embodiments, the connector 100 and the connector 200 may be, for example, a card-edge connector or other similar connectors.

In some embodiments, PCB1 is configured as the main board in connector assembly CA, while PCB2 can be configured as the slave board in connector assembly CA. In this case, connector assembly CA can connect the electrical signals of PCB2 (slave board) to PCB1 (main board) via pins 160A and 160B, thereby simultaneously processing (receiving) the electrical signals of both PCB1 and PCB2.

In some other embodiments, both PCB1 and PCB2 can be configured as slave boards within connector assembly CA. In this case, connector assembly CA can simultaneously connect the electrical signals of PCB2 (slave board) and PCB1 (slave board) via latches 160A and 160B, and then connect both electrical signals to the main board, thereby processing both the electrical signals of PCB1 and PCB2.

In some embodiments, busbars 130A and 230A are configured as positive buses, and busbars 130B and 230B are configured as negative buses. Therefore, sleeve 150A, pin 160A, and sleeve 250A are positively charged, while sleeve 150B, pin 160B, and sleeve 250B are negatively charged.

In some embodiments, as shown in FIG. 1 , two sleeves 150A and two sleeves 150B are arranged along a direction (e.g., direction X). Two sleeves 250A and two sleeves 250B are arranged along a direction (e.g., direction X). Two latches 160A and two latches 160B are also arranged along a direction (e.g., direction X).

In some embodiments, the connector assembly CA shown in FIG. 1 includes two plugs 160A and two plugs 160B. Each plug 160A and each plug 160B is configured to transmit a current of approximately 60 amperes or greater. In other words, the connector assembly CA shown in FIG. 1 can transmit a current of approximately 240 amperes or greater.

In some embodiments, housing 120, cover 140, housing 220, and cover 240 may be made of insulating materials. In some embodiments, housing 120, cover 140, housing 220, and cover 240 may be made of, for example, plastic, rubber, or other suitable dielectric materials. However, the present disclosure is not intended to limit the materials of housing 120, cover 140, housing 220, and cover 240.

In some embodiments, the conductive terminal 110 , bus bars 130A, 130B, sleeves 150A, 150B, latches 160A, 160B, stoppers 170A, 170B, conductive terminal 210 , bus bars 230A, 230B, sleeves 250A, and 250B may be made of conductive materials. In some embodiments, the conductive terminal 110, bus bar 130A, bus bar 130B, sleeve 150A, sleeve 150B, latch 160A, latch 160B, stopper 170A, stopper 170B, conductive terminal 210, bus bar 230A, bus bar 230B, sleeve 250A, and sleeve 250B may be, for example, copper or other suitable metal or conductive material. However, the present disclosure is not intended to limit the materials of the conductive terminal 110 , bus bars 130A, 130B, sleeves 150A, 150B, pins 160A, 160B, stoppers 170A, 170B, conductive terminal 210 , bus bars 230A, 230B, sleeves 250A, and sleeves 250B.

Please refer to Figure 2. Figure 2 is a perspective view of a connector assembly CA according to one embodiment of the present disclosure. For simplicity, Figure 2 omits cover 140 and cover 240 compared to Figure 1. As shown in Figure 2, in this embodiment, housing 120 has a slot 121 on one side and a slot 122 on the other side, spaced apart from slot 121. Slot 121 is configured to receive expansion card C1 in a direction (e.g., direction Y), and expansion card C1 contacts conductive terminals 110. Slot 122 is configured to receive one end of bus 130A and one end of bus 130B inserted along a direction (e.g., direction -Z). Buses 130A and 130B respectively contact corresponding conductive terminals 110 within housing 120. Similarly, housing 220 has slot 221 on one side and slot 222 on the other side, spaced apart from slot 221. Slot 221 is configured to receive expansion card C2 inserted along a direction (e.g., direction Y). Expansion card C2 contacts conductive terminals 210. The slot 222 is configured to allow one end of the bus bar 230A and one end of the bus bar 230B to be inserted along a direction (eg, direction −Z), and the bus bar 230A and the bus bar 230B respectively contact the corresponding conductive terminals 210 in the housing 220 .

Please continue to refer to Figure 2. As shown in Figure 2, in this embodiment, bus 130A and bus 130B each include one or more vertical extensions 132, one or more bends 134, and horizontal extensions 136. One or more vertical extensions 132 contact the conductive terminal 110. One or more bends 134 connect the one or more vertical extensions 132. Horizontal extensions 136 connect the one or more bends 134. One or more bends 134 may have a positioning structure (e.g., a groove) to facilitate positioning of bus 130A and bus 130B when installed in housing 120. In detail, one or more vertical extensions 132 contact the conductive terminal 110. Horizontal extension 136 contacts sleeve 150A and sleeve 150B. Similarly, busbar 230A and busbar 230B each include one or more vertical extensions 232, one or more bends 234, and horizontal extension 236. One or more vertical extensions 232 contact conductive terminal 210. One or more bends 234 connect one or more vertical extensions 232. Horizontal extension 236 connects one or more bends 234. One or more bends 234 may have a positioning structure (e.g., a groove) to facilitate positioning of busbar 230A and busbar 230B when installed in housing 220. In detail, one or more vertical extensions 232 contact conductive terminal 210. The horizontal extension 236 contacts the sleeve 250A and the sleeve 250B.

Please refer to Figure 3. Figure 3 is an exploded view of a connector assembly CA according to one embodiment of the present disclosure. As shown in Figure 3, in this embodiment, the pin 160A and the pin 160B extend along a direction (e.g., direction Z). The portion of the pin 160A below the stopper 170A passes through the sleeve 150A, and the portion of the pin 160A above the stopper 170A is configured to pass through the sleeve 250A. Similarly, the portion of the pin 160B below the stopper 170B passes through the sleeve 150B, and the portion of the pin 160B above the stopper 170B is configured to pass through the sleeve 250B. A plurality of through holes PF can be formed on the top plate 248 to align the hollow through holes of the sleeve 250A and the sleeve 250B in the upper and lower directions. The diameter of through hole PF can be slightly larger than the diameter of one end of pins 160A and 160B, so that the portion of pins 160A and 160B that passes through sleeves 250A and 250B can also pass through through hole PF, allowing pins 160A and 160B to adapt to applications with different spacings between circuit boards PCB1 and PCB2.

Please continue referring to Figure 3. In one usage scenario, the user can first install conductive terminal 110 and housing 120 onto circuit board PCB1. Next, the user can install busbars 130A, 130B, sleeves 150A, 150B, and cover 140 onto housing 120, and engage cover 140 with housing 120. Next, the user can install conductive terminal 210 and housing 220 onto circuit board PCB2. Next, the user can install busbars 230A, 230B, sleeves 250A, 250B, and cover 240 onto housing 220, and engage cover 240 with housing 220. Next, the user installs latch 160A onto sleeve 150A and latch 160B onto sleeve 150B, with stopper 170A and stopper 170B resting against the tops of sleeve 150A and sleeve 150B, respectively. The user then installs connector 200, which is mounted on PCB 2, onto latch 160A and latch 160B, passing latch 160A through sleeve 250A and latch 160B through sleeve 250B. Finally, the user secures PCB 2 to a surrounding housing (not shown), completing the assembly of connector assembly CA, as shown in Figures 1 through 3. In some embodiments, the stopper portion 170A and the stopper portion 170B may be abutted against or fixed to the connector 100. For example, the stopper portion 170A and the stopper portion 170B may be abutted against the top surface of the cover 140 or fixed to the cover 140 by snapping.

Please refer to Figure 4. Figure 4 is a perspective view of a conductive terminal 110 according to one embodiment of the present disclosure. It should be noted that since the structures of the conductive terminal 110 and the conductive terminal 210 are identical, only the conductive terminal 110 will be used as an example for detailed description. As shown in Figure 4, in this embodiment, the conductive terminal 110 includes a fixed conductive terminal 110A and a suspended conductive terminal 110B. The fixed conductive terminal 110A and the suspended conductive terminal 110B are fixed to each other. The conductive terminal 110 includes a first end 111, a second end 112 separated from the first end 111, and a fixing structure 113 configured to fix the fixed conductive terminal 110A and the suspended conductive terminal 110B. The fixing structure 113 is connected between the first end 111 and the second end 112. First end 111 defines a first recess T1, and second end 112 defines a second recess T2. First end 111 corresponds to slot 121, and second end 112 corresponds to slot 122. In this embodiment, when expansion card C1 is inserted into slot 121 of housing 120, first end 111 of conductive terminal 110 clamps expansion card C1, positioning a portion of expansion card C1 within first recess T1. When bus bars 130A and 130B are inserted into slot 122 of housing 120, second end 112 of conductive terminal 110 clamps vertical extensions 132 of bus bars 130A and 130B, positioning portions of vertical extensions 132 within second recess T2. As shown in FIG. 4 , the fixed conductive terminal 110A and the suspended conductive terminal 110B are substantially conformal. The difference between the fixed conductive terminal 110A and the suspended conductive terminal 110B is that the fixed conductive terminal 110A further includes solder pins 114, which are connected to the fixed structure 113. The detailed structures of the fixed conductive terminal 110A and the suspended conductive terminal 110B are described below.

Please refer to Figures 5A and 5B. Figure 5A is a schematic diagram of a fixed conductive terminal 110A according to one embodiment of the present disclosure. Figure 5B is a schematic diagram of a suspended conductive terminal 110B according to one embodiment of the present disclosure. As shown in Figures 5A and 5B, in this embodiment, the fixed conductive terminal 110A includes a first end 111A, a second end 112A, a fixed portion 113A, and a soldering pin 114. The fixed conductive terminal 110A can be integrally formed, and the first end 111A, the second end 112A, the fixed portion 113A, and the soldering pin 114 are located on the same plane. The first end 111A and the second end 112A define a first recess T1 and a second recess T2, respectively. The fixed conductive terminal 110A is soldered to the circuit board PCB1 via the soldering pin 114. The suspended conductive terminal 110B includes a first end 111B, a second end 112B, and a fixed portion 113B. The suspended conductive terminal 110B can be integrally formed, with the first end 111B, second end 112B, and fixed portion 113B located on the same plane. The first end 111B and second end 112B define a first recess T1 and a second recess T2, respectively. The fixed conductive terminal 110A and the suspended conductive terminal 110B are secured to each other by riveting the fixed portion 113A and the fixed portion 113B, respectively. This structural design increases the contact area of the conductive terminal 110, allowing for greater current conduction. Specifically, the contact area of each conductive terminal 110 contacting the expansion card C1 in the slot 121 is widened, and the contact area of each conductive terminal 110 contacting the vertical extension portion 132 in the slot 122 is also widened.

As shown in FIG. 4 , FIG. 5A and FIG. 5B , since only the fixed conductive terminal 110A includes the solder pins 114 , when the conductive terminal 110 is disposed on the circuit board PCB1 , the fixed conductive terminal 110A directly contacts the circuit board PCB1 while the suspended conductive terminal 110B indirectly contacts the circuit board PCB2 .

In some embodiments, the conductive terminals 110 may include a plurality of fixed conductive terminals 110A fixed to one another, or a plurality of suspended conductive terminals 110B fixed to one another (i.e., the electrical signals from the expansion card do not flow down to the circuit board where the connector resides). In some embodiments, one of connectors 100 and 200 may have terminals comprised of two or more fixed suspended conductive terminals 110B, while the other connector may include fixed conductive terminals 110A. This allows the electrical signals from both expansion cards C1 and C2 to be centrally provided to one of circuit boards PCB1 and PCB2.

Please refer to Figure 6. Figure 6 is a top view of the cover 140 according to one embodiment of the present disclosure. For the sake of simplicity, the top plate 148 is omitted in Figure 6. It should be noted that since the structures of the cover 140 and the cover 240 are similar, only the cover 140 is used as an example for detailed description. As shown in Figure 6, in this embodiment, the cover body 142 of the cover 140 further has a plurality of slots SL and a plurality of openings H. The plurality of slots SL are configured for the bus 130A and the bus 130B to pass through. The plurality of openings H are configured for the sleeve 150A and the sleeve 150B to pass through. In some embodiments, the sleeves 150A and 150B are fixed to the cover 140 by friction between the sleeves 150A and the inner surface of the opening H. In some embodiments, the cover body 142 further includes a plurality of positioning members BP (e.g., bumps) to cooperate with the positioning structures of the bent portions 134 of the bus bars 130A and 130B, thereby positioning the bus bars 130A and 130B in the cover 140.

Please refer to Figure 7. Figure 7 is a schematic cross-sectional view of a sleeve 250B, a latch 160B, and a crown spring CY according to one embodiment of the present disclosure. For simplicity of illustration, Figure 7 omits the housing 220 and the cover 240. As shown in Figure 7, in this embodiment, the connector assembly CA further includes a crown spring CY wrapped around the inner surface of the hollow through-hole of sleeve 150A, the inner surface of the hollow through-hole of sleeve 150B, the inner surface of the hollow through-hole of sleeve 250A, and the inner surface of the hollow through-hole of sleeve 250B. It should be noted that because the connections between sleeve 150A and latch 160A, sleeve 250A and latch 160A, sleeve 150B and latch 160B, and sleeve 250B and latch 160B are similar, only sleeve 250B and latch 160B are used as examples for detailed description. As shown in Figure 7, crown spring CY clamps latch 160B. Crown spring CY contacts sleeve 250B and latch 160B.

Please continue to refer to Figure 7. As shown in Figure 7, in this embodiment, the conductive terminal 210 includes a first end 211 and a second end 212 spaced apart from the first end 211. The first end 211 corresponds to the slot 221 of the housing 220, and the second end 212 corresponds to the slot 222 of the housing 220 (not shown in Figure 7). As shown in Figures 2 and 7, in this embodiment, when the expansion card C2 is inserted into the slot 221 of the housing 220, the first end 211 of the conductive terminal 210 clamps the expansion card C2 and positions a portion of the expansion card C2 within the first recess T1. When busbars 230A and 230B are inserted into slots 222 of housing 220, second end portions 212 of conductive terminal 210 clamp vertical extensions 232 of busbars 230A and 230B, positioning the vertical extensions 232 within second recess T2. As shown in FIG7 , sleeve 250B includes a sleeve body 252B and a cap 254B, with a hollow through-hole extending through both the sleeve body 252B and the cap 254B. The sleeve body 252B is connected to busbars 230B. The cap 254B is located at the top of the sleeve body 252B and rests on the surface of busbars 230B. In some embodiments, the cap 254B has a larger diameter than the sleeve body 252B. As shown in FIG7 , the sleeve body 252B is secured relative to the busbar 230B by friction between the sleeve body 252B and the busbar 230B. The sleeve 250B is coupled to the horizontal extension 236 of the busbar 230B. Specifically, the sleeve body 252B has a rough texture, while the horizontal extension 236 has a mounting hole that is roughly the same shape as the sleeve body 252B but slightly smaller. When the sleeve 250B is inserted into the mounting hole of the horizontal extension 236, the rough texture creates a hard interference with the surface of the mounting hole, securing the sleeve 250B to the busbar 230B.

Please refer to Figure 8. Figure 8 is an exploded view of a connector assembly CA according to one embodiment of the present disclosure. As shown in Figure 8, in this embodiment, the connector assembly CA includes not only circuit board PCB1, connector 100, circuit board PCB2, connector 200, plug 160A, and plug 160B, but also circuit board PCB2' and connector 200'. Connector 200' is disposed on circuit board PCB2'. Connector 200' includes sleeve 250A' and sleeve 250B' and has a through hole PF'. Since the structure of connector 200' is exactly the same as that of connector 200, it will not be repeated here. As shown in FIG. 8 , the latch 160A is configured to pass through the sleeve 250A of the connector 200 and the sleeve 250A′ of the connector 200′, and the latch 160B is configured to pass through the sleeve 250B of the connector 200 and the sleeve 250B′ of the connector 200′.

Please continue to refer to Figure 8. In one usage scenario, the user first installs latches 160A and 160B on connector 100. Next, the user installs connector 200, which is mounted on circuit board PCB2, onto latches 160A and 160B, passing latch 160A through sleeve 250A and through hole PF of connector 200, and latch 160B through sleeve 250B and through hole PF. Next, the user installs connector 200', which is mounted on circuit board PCB2', onto latches 160A and 160B, passing latch 160A through sleeve 250A' and through hole PF' of connector 200', and latch 160B through sleeve 250B' and through hole PF'. Finally, the user secures PCB2 and PCB2' to a surrounding housing (not shown), completing the assembly of connector assembly CA as shown in Figure 8. As shown in Figure 8, in this embodiment, latches 160A and 160B can pass through two, three, or more connectors along a direction (e.g., direction Z), thereby achieving vertical connection of multiple connectors.

Please refer to FIG. 9. FIG. 9 is a perspective view of a connector assembly CA according to one embodiment of the present disclosure. The structural configuration of the connector assembly CA in FIG. 8 is substantially similar to the structural configuration of the connector assembly CA in FIG. 9. The difference is that the connector 200 and the connector 200 of the connector assembly CA in FIG. 9 are arranged along a horizontal direction (e.g., direction X). As shown in FIG. 9, in this embodiment, the connector assembly CA includes not only the circuit board PCB2, the connector 200, the circuit board PCB2', and the connector 200', but also a latch 260. Specifically, the latch 260 can be implemented in the shape of an inverted U, for example. In some embodiments, one end of the pin 260 passes through the through hole PF and the sleeve 250A, while the other end of the pin 260 passes through the through hole PF' and the sleeve 250A', thereby achieving horizontal connection of multiple connectors.

Please refer to Figure 10. Figure 10 is a perspective view of a connector assembly CA according to another embodiment of the present disclosure. As shown in Figure 10, in this embodiment, the connector assembly CA includes a circuit board PCB1, a connector 300, a latch 360A, a latch 360B, a stopper 370A, and a stopper 370B. The connector 300 is disposed on the circuit board PCB1. The connector 300 is configured for insertion of the expansion card C1. The latch 360A and the latch 360B pass through the connector 300. The connector 300 includes a conductive terminal 310, a housing 320, a bus 330A, a bus 330B, a cover 340, a sleeve 350A, and a sleeve 350B. The connector 300 is disposed on the circuit board PCB1. Housing 320 encloses a plurality of conductive terminals 310. Housing 320 is configured for insertion of expansion card C1. Buses 330A and 330B connect to the plurality of conductive terminals 310. Cover 340 covers at least a portion of buses 330A and 330B, i.e., buses 330A and 330B extend a considerable distance rearward (direction Y). Sleeves 350A and 350B connect to one end of buses 330A and 330B, respectively (including the portion exposed from cover 340). Through this structural design, the sizes of sleeves 350A and 350B are larger than those of sleeves 150A and 150B in the above-mentioned embodiment, thereby improving the maximum current conducting capacity. As shown in Figure 10, the housing 320 includes a hook 325. The cover 340 includes a cover body 342, a snap structure, and a top plate 348. The snap structure is used to snap with the hook 325. The snap structure includes a pressing portion 343, a connecting arm 344, and a hook 345. The pressing portion 343 is arranged on the side of the cover body 342. The pressing portion 343 and the hook 345 are located at both ends of the connecting arm 344. In other words, the connecting arm 344 is connected between the hook 345 and the pressing portion 343. The pressing portion 343 and the hook 345 swing relative to the cover body 342. A top plate 348 covers the cover body 342. The cover body 340 may further include a partition 346 disposed between the cover body 342 and the top plate 348 to electrically isolate the bus 330A from the bus 330B. The partition 346, the cover body 342, and the top plate 348 collectively define two cavities for accommodating the bus 330A and the bus 330B, respectively. Each cavity forms an opening OA and an opening OB on the cover body 340. Specifically, the partition 346 divides the space formed by the cover body 342 and the top plate 348 into two cavities, each with an opening OA and an opening OB for heat dissipation. As shown in Figure 1 , the housing 320 and the cover 340 are engaged with each other via a hook 325 and a hook 345 , respectively. Sleeves 350A and 350B are located in the two cavities of the cover 340 .

Please continue to refer to Figure 10. As shown in Figure 10, in this embodiment, latch 360A passes through sleeve 350A of connector 300. Latch 360B passes through sleeve 350B of connector 300. Stop 370A is provided on latch 360A. Stop 370B is provided on latch 360B. Specifically, stop 370A and stop 370B are located in the middle section of latch 360A and the middle section of latch 360B, respectively. In some embodiments, the diameter of stop 370A is larger than the diameter of latch 360A, and the diameter of stop 370B is larger than the diameter of latch 360B. In one usage scenario, the user inserts one end of latch 360A and one end of latch 360B through sleeves 350A and 350B from top to bottom, positioning sleeve 350A against stop 370A and sleeve 350B against stop 370B. Next, when the user wishes to install another connector on latches 360A and 360B, the two sleeves (not shown) of the other connector are inserted through the other ends of latches 360A and 360B, respectively, thereby connecting latches 360A and 360B between the two connectors 300.

In some embodiments, the connector 300 may be, for example, a card-edge connector or other similar connectors.

In some embodiments, bus 330A is configured as a positive bus and bus 330B is configured as a negative bus. Therefore, sleeve 350A and pin 360A are positively charged, while sleeve 350B and pin 360B are negatively charged.

In some embodiments, the connector assembly CA shown in FIG. 10 includes a latch 360A and a latch 360B. Each latch 360A and each latch 360B are configured to transmit a current of approximately 250 amperes or greater. In other words, the connector assembly CA shown in FIG. 10 can transmit a current of approximately 500 amperes or greater.

In some embodiments, the housing 320 and the cover 340 may be made of insulating materials. In some embodiments, the housing 320 and the cover 340 may be made of, for example, plastic, rubber, or other suitable dielectric materials. However, the present disclosure is not intended to limit the materials of the housing 320 and the cover 340.

In some embodiments, the conductive terminal 310, bus bars 330A, 330B, sleeves 350A, 350B, latches 360A, 360B, stoppers 370A, and 370B may be made of a conductive material. In some embodiments, the conductive terminal 310, bus bars 330A, 330B, sleeves 350A, 350B, latches 360A, 360B, stoppers 370A, and 370B may be made of, for example, copper or other suitable metals or conductive materials. However, the present disclosure is not intended to limit the materials of the conductive terminal 310 , the bus bars 330A and 330B, the sleeves 350A and 350B, the pins 360A and 360B, the stoppers 370A and 370B.

Please refer to Figure 11. Figure 11 is a schematic cross-sectional view of a connector 300 according to another embodiment of the present disclosure. Although crown spring CY is shown in cross-section, for simplicity of illustration, crown spring CY is depicted in its entirety. As shown in Figure 11, in this embodiment, connector assembly CA further includes crown spring CY surrounding the inner surface of the hollow through-hole of sleeve 350A and the inner surface of the hollow through-hole of sleeve 350B. Crown spring CY in Figure 11 is configured to clamp latch 360A and latch 360B, as shown in Figure 7. In other words, crown spring CY contacts sleeve 350A and latch 360A, and crown spring CY contacts sleeve 350B and latch 360B. Sleeve 350A includes a sleeve body 352A, an interference portion 353A, and a cap portion 354A. The cylinder body 352A is connected to the bus 330A. The cap 354A is located at the top of the cylinder body 352A and bears against the surface of the bus 330A. The interference portion 353A is provided on the cylinder body 352A. The interference portion 353A is engaged with the bus 330A. Specifically, the outer surface of the interference portion 353A has a rough texture so that the interference portion 353A and the bus 330A can be fastened to each other. In some embodiments, the diameter of the cap 354A is larger than the diameter of the cylinder body 352A. The sleeve 350B includes the cylinder body 352B, the interference portion 353B and the cap 354B. The cylinder body 352B is connected to the bus 330B. The cap portion 354B is located on top of the barrel body 352B and rests on the surface of the busbar 330B. The interference portion 353B is disposed on the barrel body 352B. The interference portion 353B engages with the busbar 330B. Specifically, the outer surface of the interference portion 353B has a rough texture, which allows the interference portion 353B and the busbar 330B to be firmly fixed to each other. In some embodiments, the diameter of the cap portion 354B is larger than the diameter of the barrel body 352B.

Please refer to Figure 12. Figure 12 is a perspective view of a connector assembly CA according to another embodiment of the present disclosure. As shown in Figure 12, in this embodiment, the connector assembly CA includes a circuit board PCB1, a connector 400, a cable LA, and a cable LB. The connector 400 is disposed on the circuit board PCB1. The connector 400 is configured for insertion of an expansion card C1. The connector 400 includes a conductive terminal 410, a housing 420, a bus 430A, a bus 430B, and a cover 440. The connector 400 is disposed on the circuit board PCB1. The housing 420 covers a plurality of conductive terminals 410. The housing 420 is configured for insertion of the expansion card C1. Busbars 430A and 430B connect to a plurality of conductive terminals 410. Cover 440 covers busbars 430A and 430B. Cables LA and LB connect to busbars 430A and 430B, respectively. As shown in FIG12 , housing 420 includes a hook 425. Cover 440 includes a cover body 442, a snap-fit structure, and a top plate 448. The snap-fit structure is configured to snap onto hook 425. The snap-fit structure includes a pressing portion 443, a connecting arm 444, and a snap-fit hook 445. Pressing portion 443 is disposed on a side of cover body 442. The pressing portion 443 and the hook 445 are located at both ends of the connecting arm 444. In other words, the connecting arm 444 is connected between the hook 445 and the pressing portion 443. The pressing portion 443 and the hook 445 swing relative to the cover body 442. The top plate 448 covers the cover body 442. The cover 340 may also include a separator 446 disposed between the cover body 442 and the top plate 448 to electrically isolate the bus bars 430A and 430B. Partition 446, cover 442, and top plate 448 collectively define two cavities for accommodating bus 430A and bus 430B, respectively. Each cavity has an opening OA and an opening OB formed on cover 440. Specifically, partition 446 divides the space formed by cover 442 and top plate 448 into two cavities, each having an opening OA and an opening OB for heat dissipation. Bus 430A is separated from bus 430B by partition 446. As shown in Figure 12, housing 420 and cover 440 are engaged with each other by hook 425 and hook 445, respectively. Cable LA and cable LB are located in the two cavities of cover 440.

In some embodiments, the connector 400 may be, for example, a card-edge connector or other similar connectors.

In some embodiments, bus 430A is configured as a positive bus and bus 430B is configured as a negative bus. Therefore, cable LA is positively charged and cable LB is negatively charged.

In some embodiments, the housing 420 and the cover 440 may be made of insulating materials. In some embodiments, the housing 420 and the cover 440 may be made of, for example, plastic, rubber, or other suitable dielectric materials. However, the present disclosure is not intended to limit the materials of the housing 420 and the cover 440.

In some embodiments, the conductive terminals 410, bus bars 430A, and bus bars 430B may be made of a conductive material. In some embodiments, the conductive terminals 410, bus bars 430A, and bus bars 430B may be made of, for example, copper or other suitable metals or conductive materials. However, the present disclosure is not intended to limit the materials of the conductive terminals 410, bus bars 430A, and bus bars 430B.

In some embodiments, the connector assembly CA shown in FIG. 12 may include multiple circuit boards PCB1 and multiple connectors 400. These circuit boards PCB1 and connectors 400 may be arranged vertically or horizontally. For example, one circuit board PCB1 may be configured as the main board in the connector assembly CA, while the other circuit board PCB1 may be configured as the secondary board in the connector assembly CA. In this case, the connector assembly CA can connect the electrical signals of the secondary board PCB1 to the main board PCB1 via cables LA and LB of the other circuit board PCB1, thereby processing the electrical signals of both circuit boards PCB1 simultaneously.

In some other embodiments, one of the PCBs 1 and the other PCB 1 can both be configured as slave boards within the connector assembly CA. In this case, the connector assembly CA can serially connect the electrical signals of cables LA and LB from one of the PCBs 1 and cables LA and LB from the other PCB 1, and then simultaneously connect the electrical signals from both PCBs 1 to the mainboard, thereby processing the electrical signals from both PCBs 1 simultaneously.

From the above detailed description of the specific embodiments of the present disclosure, it is apparent that in the connector assembly and connector of the present disclosure, the first cover and the first housing are engaged with each other via the first hook and the first reverse hook, respectively, thereby stabilizing the connection structure between the first conductive terminal, the first bus bar, and the first sleeve, thereby ensuring the stability of the overall structure of the first connector. In the connector assembly and connector of the present disclosure, the second cover and the second housing are also engaged with each other via the second hook and the second reverse hook, respectively, thereby stabilizing the connection structure between the second conductive terminal, the second bus bar, and the second sleeve, thereby ensuring the stability of the overall structure of the second connector. In the connector assembly and connector disclosed herein, because the latch simultaneously passes through the first sleeve of the first connector and the second sleeve of the second connector, the electrical signal from the expansion card read by the second circuit board can be transmitted to the first circuit board via the latch, thereby serially connecting the electrical signals from different expansion cards in different connectors. In the connector assembly and connector disclosed herein, because the stopper is located in the middle of the latch and has a diameter larger than the diameter of the latch, the second connector is separated from the first connector by a certain distance, thereby achieving structural stability for the first and second connectors in the connector assembly. In the connector assembly and connector disclosed herein, crown springs are wrapped around the inner surfaces of the first and second sleeves. These crown springs not only increase the contact area between the latch and the first and second sleeves, thereby meeting the requirement for high current transmission, but also provide a positive force between the latch and the first and second sleeves, thereby assisting in securing the second connector to the latch. In summary, the connector assembly disclosed herein not only allows for serial connection of electrical signals from multiple expansion cards on multiple connectors, but also ensures structural stability for the multiple connectors within the overall connector assembly.

Although the present disclosure has been disclosed in the form of embodiments as described above, this is not intended to limit the present disclosure. Anyone skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the scope of the attached patent application.

100, 200, 200', 300, 400: Connector 110, 210, 310, 410: Conductive Terminal 110A: Fixed Conductive Terminal 110B: Floating Conductive Terminal 111, 111A, 111B, 211: First End 112, 112A, 112B, 212: Second End 113: Fixing Structure 113A, 113B: Fixing Portion 114: Solder Pins 120, 220, 320, 420: Housing 121, 122, 221, 222: Socket 125, 225, 325, 425: Hook 130A, 130B, 230A, 230B, 330A, 330B, 430A, 430B: Busbars 132, 232: Vertical extensions 134, 234: Bends 136, 236: Horizontal extensions 140, 240, 340, 440: Lids 142, 242, 342, 442: Lid bodies 143, 243, 343, 443: Pressing elements 144, 244, 344, 444: Connecting arms 145, 245, 345, 445: Hooks 146, 246, 346, 446: Dividers 148, 248, 348, 448: Top plates 150A, 150B, 250A, 250A’, 250B, 250B’, 350A, 350B: Sleeve 160A, 160B, 260, 360A, 360B: Latch 170A, 170B, 370A, 370B: Stop 252B, 352A, 352B: Cylinder body 254B, 354A, 354B: Cap 353A, 353B: Interference BP: Positioning piece C1, C2: Expansion card CA: Connector assembly CY: Crown spring H: Opening LA, LB: Cable OA, OB: Opening PCB1, PCB2, PCB2’: Circuit board PF, PF’: Through hole SL: Slot T1: First recess T2: The second concave part X,Y,Z: direction

To facilitate understanding of the above and other objects, features, advantages, and embodiments of the present disclosure, the accompanying drawings are described as follows: Figure 1 illustrates a perspective view of a connector assembly according to an embodiment of the present disclosure. Figure 2 illustrates a perspective view of a connector assembly according to an embodiment of the present disclosure. Figure 3 illustrates an exploded view of a connector assembly according to an embodiment of the present disclosure. Figure 4 illustrates a perspective view of a conductive terminal according to an embodiment of the present disclosure. Figure 5A illustrates a schematic diagram of a fixed conductive terminal according to an embodiment of the present disclosure. Figure 5B illustrates a schematic diagram of a suspended conductive terminal according to an embodiment of the present disclosure. Figure 6 illustrates a top view of a cover according to an embodiment of the present disclosure. Figure 7 illustrates a schematic cross-sectional view of a sleeve, a latch, and a crown spring according to an embodiment of the present disclosure. Figure 8 illustrates an exploded view of a connector assembly according to one embodiment of the present disclosure. Figure 9 illustrates a perspective view of a connector assembly according to one embodiment of the present disclosure. Figure 10 illustrates a perspective view of a connector assembly according to another embodiment of the present disclosure. Figure 11 illustrates a schematic cross-sectional view of a connector according to another embodiment of the present disclosure. Figure 12 illustrates a perspective view of a connector assembly according to yet another embodiment of the present disclosure.

Domestic Storage Information (Please enter in order by institution, date, and number) None International Storage Information (Please enter in order by country, institution, date, and number) None

100,200: Connector

110,210:Conductive terminal

120,220: Shell

125,225: Inverted Hook

130A, 130B, 230A, 230B: Buses

140,240: Lid

142,242: Cover the body

143,243: Pressing part

144,244: Connecting arm

145,245: Hook

146,246: Divider

148,248: Top plate

150A, 150B, 250A, 250B: Sleeve

160A, 160B: Latch

170A, 170B: Stopper

C1, C2: Expansion Cards

CA: Connector Assembly

OA, OB: Open mouth

PCB1, PCB2: Circuit boards

PF: Through hole

X, Y, Z: Direction

Claims (20)

A connector assembly comprises: a first circuit board; a first connector disposed on the first circuit board and comprising: a first conductive terminal; a first bus bar connected to the first conductive terminal; and a first sleeve connected to the first bus bar; a second circuit board spaced apart from the first circuit board; a second connector disposed on the second circuit board and comprising: a second conductive terminal; a second bus bar connected to the second conductive terminal; and a second sleeve connected to the second bus bar; a latch extending through the first sleeve of the first connector and the second sleeve of the second connector; and a stopper disposed on the latch and abutting or fixed to the first connector. A connector assembly as described in claim 1, wherein the stop portion abuts against a top portion of the first sleeve. A connector assembly as described in claim 1, wherein the first connector further includes a first shell covering the first conductive terminal and a first cover covering the first bus, wherein the first shell includes a first hook, the first cover includes a first hook, and the first shell and the first cover are respectively engaged with each other by the first hook and the first hook. A connector assembly as described in claim 3, wherein the first housing further has a first slot and a second slot separated from the first slot, and wherein the first conductive terminal includes a first end corresponding to the first slot and a second end corresponding to the second slot. The connector assembly as described in claim 4, wherein the second end of the first conductive terminal clamps the first bus bar. The connector assembly of claim 3, wherein the first cover further comprises: a first cover body; a first top plate covering the first cover body; and a first partition disposed between the first cover body and the first top plate, wherein the first partition, the first cover body, and the first top plate collectively define two receiving cavities of the first cover. A connector assembly as described in claim 6, wherein the first sleeve is located in one of the two accommodating cavities and penetrates the first cover body and the first top plate. The connector assembly of claim 1, wherein the first bus bar comprises: one or more first vertical extensions contacting the first conductive terminal; one or more first bends connecting the one or more first vertical extensions; and a first horizontal extension connecting the one or more first bends. The connector assembly as described in claim 1 further includes a crown spring, wherein the first sleeve has a hollow through-hole, the crown spring is wrapped around an inner surface of the hollow through-hole, and the crown spring clamps the pin. The connector assembly of claim 1, wherein the first sleeve comprises: a sleeve body connected to the first bus bar; a cap located at a top of the sleeve body and resting on a surface of the first bus bar, wherein a diameter of the cap is larger than a diameter of the sleeve body; and an interference portion disposed on the sleeve body and engaging with the first bus bar. A connector assembly as described in claim 1, wherein a width of the stop portion is greater than a width of the pin. The connector assembly of claim 1, wherein the first conductive terminal comprises one or a combination of the following, which are fixed to each other: a fixed conductive terminal comprising a first end, a second end, a fixed portion, and a solder pin; and a suspended conductive terminal comprising a first end, a second end, and a fixed portion. A connector assembly as described in claim 12, wherein the first end, the second end, the fixing portion and the soldering pin of the fixed conductive terminal are located on the same plane. A connector comprises: A first housing having a first slot and a second slot spaced apart from the first slot, the first slot being for inserting an expansion card; A plurality of first conductive terminals, each of which includes a first end corresponding to the first slot and a second end corresponding to the second slot; A first bus bar having one end positioned in the second slot and connected to the second end; and A first sleeve connected to the other end of the first bus bar and having a hollow recess or a through hole. The connector as described in claim 14 further includes a crown spring looped around an inner surface of the groove or the through hole. The connector of claim 14, wherein the first bus bar comprises: one or more first vertical extensions contacting the second end; one or more first bends connecting the one or more first vertical extensions; and a first horizontal extension connecting the one or more first bends. The connector of claim 14, wherein the first conductive terminal comprises one or a combination of the following, which are fixed to each other: a fixed conductive terminal comprising a first end, a second end, a fixed portion, and a solder pin; and a suspended conductive terminal comprising a first end, a second end, and a fixed portion. A connector as described in claim 17, wherein the first end, the second end, the fixing portion and the soldering pin of the fixed conductive terminal are located on the same plane. The connector as described in claim 14 further includes a cover, wherein the cover includes two accommodating cavities, the two accommodating cavities are separated by a partition, and the first bus is accommodated in one of the two accommodating cavities. A connector as described in claim 19, wherein the two accommodating cavities each have an opening for heat dissipation.