TWM657004U - Composite connector - Google Patents

Abstract

A composite connector is disclosed which comprises a first insulating housing, a second insulating housing and a plurality of contacts. The second insulating housing includes a first mating portion and a second mating portion to be engaged with a mating connector in a first direction, and the second insulating housing is assembled to the first insulating housing in such a manner that it is movable in a plane perpendicular to the first direction. Each contact includes a fixed portion, a first held portion, a spring portion, a second held portion and a contact portion. The first held portion is held by the first insulating housing, while the second held portion is held by the second insulating housing. The contact portions of a part of the plurality of contacts are arranged in the first mating portion, while the contact portions of the others of the plurality of contacts are arranged in the second mating portion. The composite connector further comprises a metal shield shell arranged to surround the first mating portion. This composite connector is capable of simultaneously and separately transmitting high-frequency signals and general signals.

Description

Composite connector

The invention relates to a composite connector, in particular to a connector capable of transmitting high-frequency signals and general signals simultaneously and separately.

A floating connector is known that can absorb errors in the installation position of a mating connector and prevent damage to the connector or the mating connector.

Japanese patent JP6785184B2 discloses a floating connector with a shield, wherein the shield has a movable portion fixed to a movable housing and a fixed portion fixed to a fixed housing. This shield has a complex structure. Once the number of connector contacts increases, a larger shield is required. A larger shield means higher production costs.

One of the purposes of the present invention is to provide a composite connector that can transmit high-frequency signals and general signals simultaneously and separately.

Another object of the present invention is to provide a composite connector in which a metal shielding cover is only provided for the contact piece used for transmitting high-frequency signals.

Another object of the present invention is to provide a composite connector that can be applied to floating connectors and non-floating connectors.

According to the first aspect of the present invention, a composite connector is provided, comprising a first insulating shell, a second insulating shell and a plurality of contacts, The second insulating shell has a first engaging portion and a second engaging portion that engage with a matching connector in a first direction, and the second insulating shell is assembled to the first insulating shell in a manner that allows it to move on a plane perpendicular to the first direction, The plurality of contact members are made of conductive material and arranged along a second direction perpendicular to the first direction. Each contact member includes: a fixed portion, a first holding portion, a spring portion, a second holding portion and a contact portion. The first holding portion is held by the first insulating shell, the second holding portion is held by the second insulating shell, the first holding portion extends from the fixed portion, the spring portion connects the first holding portion and the second holding portion, and the contact portion extends from the second holding portion. The contact portions of some of the plurality of contact members are arranged on the first interlocking portion, and the contact portions of other contact members of the plurality of contact members are arranged on the second interlocking portion. The composite connector further includes a metal shielding cover, which is configured to surround the first engaging portion.

According to the composite connector of the present invention, the metal shielding cover includes at least one spring sheet, and the at least one spring sheet is in contact with at least one contact piece of the contact piece of the portion.

According to the composite connector of the present invention, the at least one contact is a ground contact.

According to the composite connector of the present invention, the contact parts of the contact pieces are arranged in two rows, and the fixing parts of the contact pieces are arranged in one row.

According to the composite connector of the present invention, each of the first engaging portion and the second engaging portion is made into a socket-type engaging portion.

According to the second aspect of the present invention, a composite connector is provided, comprising an insulating shell and a plurality of contacts, The insulating shell has a first engaging portion and a second engaging portion engaged with a matching connector in a first direction, The plurality of contacts are made of conductive material and arranged in a second direction perpendicular to the first direction, each contact comprises: a fixing portion, at least one retaining portion and a contact portion, the at least one retaining portion is located between the fixing portion and the contact portion, and the at least one retaining portion is retained by the insulating shell, The contact portions of a portion of the plurality of contacts are arranged in the first engaging portion, and the contact portions of the other contacts in the plurality of contacts are arranged in the second engaging portion, The connector further includes a metal shielding cover, which is configured to surround the first engaging portion.

According to the composite connector of the present invention, the metal shielding cover includes at least one spring sheet, and the at least one spring sheet is in contact with at least one contact piece of the contact piece of the portion.

According to the composite connector of the present invention, the at least one contact is a ground contact.

According to the composite connector of the present invention, each of the first engaging portion and the second engaging portion is made into a plug-type engaging portion.

According to the composite connector of the present invention, each of the first engaging portion and the second engaging portion is configured as a tongue.

A person having ordinary knowledge in the technical field to which the present invention belongs will be able to best understand the technical features and other purposes and advantages of the present invention after reading the specification and drawings of the present invention.

The connector assembly of the present invention will be described below with reference to the accompanying drawings. In each drawing, the same components or components with the same function are marked with the same component symbols. The drawings are not drawn to scale.

FIG1 is a three-dimensional diagram of a connector assembly in an engaged state according to an embodiment of the present invention. The connector assembly is generally indicated by the component symbol 100. The connector assembly 100 is a floating board-to-board connector. The connector assembly 100 includes a first composite connector 1 mounted on a board and a second composite connector 2 mounted on a board, wherein the first composite connector 1 is a floating connector and the second composite connector 2 is a non-floating connector paired with the floating connector. FIG2 is a three-dimensional diagram of the connector assembly 100 in an unengaged state. The first composite connector 1 is mounted on a circuit board 200, and the second composite connector 2 is mounted on a circuit board 300. Signals are transmitted between the circuit board 200 and the circuit board 300 through the connector assembly 100.

In the present embodiment, the first composite connector 1 is implemented as a horizontal receptacle floating connector, and the non-floating second composite connector 2 is implemented as a horizontal plug connector, but the present invention is not limited thereto. If necessary, the first composite connector 1 can be implemented as an upright floating connector or a plug floating connector, and the non-floating second composite connector 2 can be implemented as an upright connector or a receptacle connector. It should be understood that in the embodiment, although the second composite connector 2 is a mating connector of the floating connector, according to the present invention, the second composite connector can also be mated with other types of non-floating connectors.

Fig. 3 is a perspective view of the first composite connector 1 according to the embodiment of the present invention, and Fig. 4 is an exploded view of the first composite connector 1 according to the embodiment of the present invention. Referring to Fig. 3 and Fig. 4, the components of the first composite connector 1 according to the embodiment of the present invention are briefly described.

As shown in FIG. 3 and FIG. 4 , the first composite connector 1 includes a first insulating housing 11 as a fixed housing, a second insulating housing 12 as a movable housing, a metal shielding cover 13, a plurality of contacts 14, two metal fittings 15 and two fixing components 16.

The first insulating shell 11 and the second insulating shell 12 are made of insulating resin or polymer material by injection molding technology. The contact members 14 are arranged along a second direction D2 perpendicular to the first direction D1.

The first insulating housing 11 includes a receiving space 110, and a portion of the second insulating housing 12 is received in the receiving space 110. A metal fixing member 16 is inserted into an opening formed at the bottom of the first insulating housing 11 in an interference fit manner. The fixing member 16 can act as a pad that is welded to a circuit board. By welding the fixing member 16 to the circuit board 200, the first composite connector 1 is stably fixed to the circuit board 200.

The second insulating housing 12 has a first engaging portion 121 and a second engaging portion 122 that engage with a matching connector (i.e., the second composite connector 2) in the first direction D1. The first engaging portion 121 and the second engaging portion 122 are configured as socket-type engaging portions and have a first engaging hole 1210 and a second engaging hole 1220, respectively. The second insulating housing 12 is assembled to the first insulating housing 11 in a manner that it can move on a plane perpendicular to the first direction D1. The metal shielding cover 13 is assembled on the first engaging portion 121. Two U-shaped metal fittings 15 are fixed to the two ends of the first insulating shell 11 respectively to prevent the second insulating shell 12 from moving in the first direction D1 and prevent the second insulating shell 12 from separating from the first insulating shell 11. In this way, the second insulating shell 12 is restricted to move relative to the first insulating shell 11 only on a plane perpendicular to the first direction D1.

FIG5 is a front view of the first composite connector 1 according to the embodiment of the present invention. As shown in FIG5 , the first insulating housing 11 has a positioning post 111 on the bottom surface. The positioning post 111 cooperates with the positioning hole formed on the circuit board 200 to position the first composite connector 1 on the circuit board 200.

In this embodiment, the 10 contacts assigned to the first engaging portion 121 are suitable for transmitting high-frequency signals, such as high-speed differential signals. The contact portions of the 10 contacts 14 are arranged in two rows in the first engaging hole 1210, wherein the 5 contacts in the upper row are signal contacts, signal contacts, ground contacts, signal contacts, and signal contacts (S-S-G-S-S) from left to right, and the 5 contacts in the lower row are signal contacts, signal contacts, ground contacts, signal contacts, and signal contacts (S-S-G-S-S) from left to right. The metal shielding cover 13 can provide EMI protection or electrostatic protection.

In this embodiment, the 22 contacts assigned to the second engaging portion 122 are suitable for transmitting general signals, including sensor signals or control signals, such as ON/OFF signals. General signals can be low-frequency signals or signals that are not related to frequency. The contact portions of the 22 contacts 14 are arranged in two rows in the second engaging hole 1221.

FIG. 6 is a cross-sectional view taken along line A-A in FIG. 5 . FIG. 7 is a cross-sectional view taken along line B-B in FIG. 5 . As shown in FIG. 6 or FIG. 7 , the second housing 12 is supported by the contact 14 in a floating manner relative to the first insulating housing 11. In FIG. 6 , it is clearly shown that the two springs of the metal shielding cover 13 are in contact with the upper contact 14 (grounding contact) and the lower contact 14 (grounding contact) respectively. In this way, a grounding path of the metal shielding cover 13 is established.

Fig. 8 is a three-dimensional view of the metal shielding cover 13 of the first composite connector 1. Fig. 9 is another three-dimensional view of the metal shielding cover 13 of the first composite connector 1. The metal shielding cover 13 is explained with reference to Figs. 8 and 9.

The metal shielding cover 13 is made by punching and bending a conductive metal sheet, but is not limited thereto. The metal shielding cover 13 can be an integrated component made by drawing. The metal shielding cover 13 is mainly composed of an upper plate 131, a lower plate 132, and two side plates 133 connecting the upper plate 131 and the lower plate 132. The metal shielding cover 13 is assembled to the first interlocking portion 121 to surround the first interlocking portion 121. An upper joint portion 1311 and a lower joint portion 1321 are formed at the rear edges of the upper plate 131 and the lower plate 132, respectively, and a side joint portion 1331 is formed at the rear edge of each side plate 133. The metal shield cover 13 is stably fixed to the first fitting portion 121 by engaging the upper joining portion 1311 , the lower joining portion 1321 , and the side joining portion 1331 with the protrusion formed on the outer peripheral surface of the first fitting portion 121 .

In order to establish a grounding path for the metal shielding cover 13, an upper spring 1312 is formed at the front edge of the upper plate 131 corresponding to the grounding contact of the first engaging portion 121, and a lower spring 1322 is formed at the front edge of the lower plate 132 corresponding to the grounding contact of the first engaging portion 121. The upper spring 1312 and the lower spring 1322 are bent inward. As shown in FIG6, when the metal shielding cover 13 is assembled to the first engaging portion 121, the upper spring 1312 and the lower spring 1322 will contact the grounding contact of the first engaging portion 121.

Figure 10 is a side view of the plurality of contacts 14 of the first composite connector 1. Figure 11 is a top view of the plurality of contacts 14 of the first composite connector 1. The contacts 14 are made of a conductive material, such as copper or a copper alloy. As shown in Figures 10 and 11, each contact 14 includes: a fixing portion 141, a first retaining portion 142, a spring portion 143, a second retaining portion 144 and a contact portion 145. The first retaining portion 142 extends from the fixing portion 141, the spring portion 143 connects the first retaining portion 142 and the second retaining portion 144, and the contact portion 145 extends from the second retaining portion 144. The fixing portion 141 will be fixed to the circuit board by soldering, such as surface mounting technology (SMT). The first retaining portion 142 is press-fitted to the first insulating shell 11 and retained by the first insulating shell 11. The second retaining portion 144 is press-fitted to the second insulating shell 12 and retained by the second insulating shell 12. The fixing portions 141 of all the contacts 14 are arranged in a row. Half of the contacts 14 are configured such that the contact portions 145 are positioned in the upper row, and the other half of the contacts 14 are configured such that the contact portions 145 are positioned in the lower row. That is, the contact portions 145 of the contacts 14 are positioned in two rows separated in the third direction D3, and the third direction D3 is perpendicular to the first direction D1 and the second direction D2.

Fig. 12 is a perspective view of the second composite connector 2 according to the embodiment of the present invention. Fig. 13 is an exploded view of the second composite connector 2 according to the embodiment of the present invention. Referring to Fig. 12 and Fig. 13, the components of the second composite connector 2 according to the embodiment of the present invention are briefly described.

As shown in FIG. 12 and FIG. 13 , the second composite connector 2 includes an insulating housing 21 , a metal shielding cover 23 , a plurality of contacts 24 and two fixing members 26 .

The insulating housing 21 is made of insulating resin or polymer material by injection molding technology. The contact members 24 are arranged along a second direction D2 perpendicular to the first direction D1.

The insulating housing 21 includes an opening consisting of a first space SP1 and a second space SP2. The fixing member 26 is inserted into the opening formed at the bottom of the insulating housing 21 in an interference fit manner. The fixing member 26 can act as a gasket that is welded to the circuit board. By welding the fixing member 26 to the circuit board 200, the second composite connector 2 is stably fixed on the circuit board 300. The metal shielding cover 23 is embedded in the first space SP1 so as to surround the first interlocking portion 211.

The insulating housing 21 has a first engaging portion 211 and a second engaging portion 212 for engaging with a matching connector (i.e., the first composite connector 1) in the first direction D1. The first engaging portion 211 and the second engaging portion 212 are configured as socket-type engaging portions. In other words, the first engaging portion 211 and the second engaging portion 212 are configured as tongues extending in the first direction D1.

When the second composite connector 2 is mated with the first composite connector 1 , the first mating portion 211 of the second composite connector 2 is mated with the first mating portion 121 of the first composite connector 1 , and the second mating portion 212 of the second composite connector 2 is mated with the second mating portion 122 of the first composite connector 1 .

FIG14 is a front view of the second composite connector 2 according to the embodiment of the present invention. As shown in FIG14 , the insulating housing 21 has a positioning post 213 on the bottom surface. The positioning post 213 cooperates with the positioning hole formed on the circuit board 300 to position the connector 1 on the circuit board 200.

In this embodiment, the 10 contacts assigned to the first engaging portion 211 are suitable for transmitting high-frequency signals, such as high-speed differential signals. The contact portions of the 10 contacts 24 are arranged on the upper and lower surfaces of the first engaging portion 211 (i.e., the tongue), wherein the 5 contacts arranged on the upper surface of the tongue are respectively signal contact, signal contact, ground contact, signal contact, and signal contact (S-S-G-S-S) from left to right, and the 5 contacts arranged on the lower surface of the tongue are respectively signal contact, signal contact, ground contact, signal contact, and signal contact (S-S-G-S-S) from left to right. The metal shielding cover 23 can provide EMI protection or electrostatic protection functions.

In this embodiment, the 22 contacts assigned to the second engaging portion 212 are suitable for transmitting general signals, including sensor signals or control signals, such as ON/OFF signals. The contact portions of the 22 contacts 24 are arranged on the upper and lower surfaces of the second engaging portion 212 (i.e., the tongue piece).

FIG15 is a cross-sectional view taken along line C-C in FIG14. FIG16 is a cross-sectional view taken along line D-D in FIG14. FIG15 clearly shows that the two springs of the metal shielding cover 23 are in contact with the upper contact 24 (grounding contact) and the lower contact 24 (grounding contact) respectively. In this way, a grounding path of the metal shielding cover 23 is established.

Fig. 17 is a perspective view of the metal shielding cover 23 of the second composite connector 2. Fig. 18 is another perspective view of the metal shielding cover 23 of the second composite connector 2. The metal shielding cover 23 will be described with reference to Figs. 17 and 18.

The metal shielding cover 23 is made by punching and bending a conductive metal sheet, but is not limited thereto. The metal shielding cover 23 can be an integrated component made by drawing. The metal shielding cover 23 is mainly composed of an upper plate 231, a lower plate 232, and two side plates 233 connecting the upper plate 231 and the lower plate 232. The metal shielding cover 23 is embedded in the first space SP1 to surround the first interlocking portion 211. Two upper contact arms 2311 are formed on the upper plate 231 of the metal shielding cover 23, and two lower contact arms 2321 are formed on the lower plate 232 of the metal shielding cover 23. The upper contact arm 2311 and the lower contact arm 2321 are used to contact the metal shielding cover 13 of the first composite connector 1. An upper joint portion 2313 is formed at the rear edge of the upper plate 231, and a side joint portion 2331 is formed at the rear edge of each side plate 233. By engaging the upper joint portion 2313 and the side joint portions with the protrusions formed on the inner wall surface defining the first space SP1, the metal shielding cover 23 is firmly embedded in the first space SP1.

In order to establish a grounding path for the metal shielding cover 23, an upper spring 2312 is formed at the rear edge of the upper plate 231 corresponding to the grounding contact of the first engaging portion 211, and a lower spring 2322 is formed at the rear edge of the lower plate 232 corresponding to the grounding contact of the first engaging portion 211. The upper spring 2312 and the lower spring 2322 are bent inward. As shown in FIG. 15 , when the metal shielding cover 23 is embedded in the first space SP1, the upper spring 2312 and the lower spring 2322 will contact the grounding contact of the first engaging portion 211.

FIG19 is a side view of the plurality of contacts 24 of the second composite connector 2. FIG20 is a top view of the plurality of contacts 24 of the second composite connector 2. The contacts 24 are made of a conductive material, such as copper or a copper alloy. As shown in FIG19 and FIG20 , each contact 24 includes: a fixing portion 241, a first retaining portion 242, a bent connecting portion 243, a second retaining portion 244, and a contact portion 245. The first retaining portion 242 extends from the fixing portion 241, the bent connecting portion 243 connects the first retaining portion 242 and the second retaining portion 244, and the contact portion 245 extends from the second retaining portion 244. The fixing portion 241 will be fixed to the circuit board by soldering, such as surface mounting technology (SMT). The first retaining portion 242 and the second retaining portion 244 are press-fitted into the insulating housing 21 and retained by the insulating housing 21. The fixing portions 241 of all the contacts 24 are arranged in a row. Half of the contacts 24 are configured such that the contact portions 245 are positioned in the upper row, and the other half of the contacts 24 are configured such that the contact portions 245 are positioned in the lower row. That is, the contact portions 245 of the contacts 24 are positioned in two rows separated in the third direction D3, and the third direction D3 is perpendicular to the first direction D1 and the second direction D2.

FIG21 is a cross-sectional view of the connector assembly 100 of the present embodiment in the mating state. As shown in FIG21, in the mating state, the contact 14 of the first composite connector 1 contacts the contact 24 of the second composite connector 2. Therefore, the metal shielding cover 13 can be connected to the grounding electrode formed on the circuit board 200 through the grounding contact of the first composite connector 1, and can also be connected to the grounding electrode formed on the circuit board 300 through the grounding contact of the first composite connector 1 and the grounding contact of the second composite connector 2. Similarly, the metal shielding cover 23 can be connected to the ground electrode formed on the circuit board 300 through the grounding contact of the second composite connector 2, and can also be connected to the ground electrode formed on the circuit board 200 through the grounding contact of the second composite connector 2 and the grounding contact of the first composite connector 1. In addition, by pressing the upper contact arm 2311 and the lower contact arm 2321 of the metal shielding cover 23 against the metal shielding cover 13, the metal shielding cover 13 will directly contact the metal shielding cover 23. Therefore, the grounding connection between the metal shielding cover 13 and the metal shielding cover 23 can be established reliably.

Although the present invention is described with reference to the preferred embodiments, it should be understood that many changes and modifications are possible for those with ordinary knowledge in the technical field to which the present invention belongs without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the disclosed embodiments, but is subject to the textual description of the attached patent application scope, that is, equivalent changes and modifications that do not deviate from the scope of the patent application of the present invention should still fall within the scope of the present invention.

100: Connector assembly 1: First composite connector 11: First insulating housing 110: Accommodation space 111: Positioning column 12: Second insulating housing 121: First fitting part 122: Second fitting part 13: Metal shielding cover 131: Upper plate 1311: Upper joint part 1312: Upper spring sheet 132: Lower plate 1321: Lower joint part 1322: Lower spring sheet 133: Side plate 1331: Side joint part 14: Contact piece 141: Fixing part 142: First retaining part 143: Spring part 144: Second retaining part 145: Contact part 15: Metal fittings 16: Fixed member 2: Second composite connector 21: Insulating shell 211: First interlocking part 212: Second interlocking part 213: Positioning column 23: Metal shielding cover 231: Upper plate 2311: Upper contact arm 2312: Upper spring 2313: Upper joint 232: Lower plate 2321: Lower contact arm 2322: Lower spring 233: Side plate 2331: Side joint 24: Contact member 241: Fixed part 242: First retaining part 243: Bend connection part 244: Second retaining part 245: Contact part 26: Fixed member 200: Circuit board 300: Circuit board SP1: First space SP2: Second space D1: First direction D2: Second direction D3: Third direction

Figure 1 is a perspective view of a connector assembly in an engaged state according to an embodiment of the present invention. Figure 2 is a perspective view of a connector assembly in an unengaged state according to an embodiment of the present invention. Figure 3 is a perspective view of a first composite connector according to an embodiment of the present invention. Figure 4 is an exploded view of a first composite connector according to an embodiment of the present invention. Figure 5 is a front view of a first composite connector according to an embodiment of the present invention. Figure 6 is a cross-sectional view taken along line A-A in Figure 5. Figure 7 is a cross-sectional view taken along line B-B in Figure 5. Figure 8 is a perspective view of a metal shielding cover of the first composite connector. Figure 9 is another perspective view of a metal shielding cover of the first composite connector. Figure 10 is a side view of a contact of the first composite connector. FIG. 11 is a top view of the contact of the first composite connector. FIG. 12 is a perspective view of the second composite connector according to the embodiment of the present invention. FIG. 13 is an exploded view of the second composite connector according to the embodiment of the present invention. FIG. 14 is a front view of the second composite connector according to the embodiment of the present invention. FIG. 15 is a cross-sectional view taken along the line C-C in FIG. 14. FIG. 16 is a cross-sectional view taken along the line D-D in FIG. 14. FIG. 17 is a perspective view of the metal shield of the second composite connector. FIG. 18 is another perspective view of the metal shield of the second composite connector. FIG. 19 is a side view of the contact of the second composite connector. FIG. 20 is a top view of the contact of the second composite connector. Figure 21 is a cross-sectional view of the connector assembly of the novel embodiment in the engaged state.

100: Connector assembly

1: The first composite connector

2: Second composite connector

200: Circuit board

300: Circuit board

Claims (10)

A composite connector includes a first insulating shell, a second insulating shell and a plurality of contacts. The second insulating shell has a first engaging portion and a second engaging portion that engage with a matching connector in a first direction. The second insulating shell is assembled to the first insulating shell in a manner that allows it to move on a plane perpendicular to the first direction. The plurality of contact members are made of conductive material and arranged along a second direction perpendicular to the first direction. Each contact member includes: a fixed portion, a first holding portion, a spring portion, a second holding portion and a contact portion. The first holding portion is held by the first insulating shell, the second holding portion is held by the second insulating shell, the first holding portion extends from the fixed portion, the spring portion connects the first holding portion and the second holding portion, and the contact portion extends from the second holding portion. The contact portions of some of the plurality of contact members are arranged on the first interlocking portion, and the contact portions of other contact members of the plurality of contact members are arranged on the second interlocking portion. The composite connector further includes a metal shielding cover, which is configured to surround the first engaging portion. A composite connector as claimed in claim 1, wherein the metal shielding cover includes at least one spring sheet, and the at least one spring sheet is in contact with at least one of the contact pieces of the portion. A composite connector as claimed in claim 2, wherein at least one contact is a ground contact. A composite connector as claimed in any one of claims 1 to 3, wherein the contact portions of the contact pieces are arranged in two rows, and the fixed portions of the contact pieces are arranged in one row. A composite connector as in any one of claims 1 to 3, wherein each of the first engaging portion and the second engaging portion is made into a socket-type engaging portion. A composite connector includes an insulating shell and a plurality of contacts, The insulating shell has a first engaging portion and a second engaging portion that engage with a matching connector in a first direction, The plurality of contacts are made of conductive material and arranged along a second direction perpendicular to the first direction, each contact includes: a fixed portion, at least one retaining portion and a contact portion, the at least one retaining portion is located between the fixed portion and the contact portion, and the at least one retaining portion is retained by the insulating shell, The contact portions of some of the plurality of contacts are arranged in the first engaging portion, and the contact portions of other of the plurality of contacts are arranged in the second engaging portion, The connector further includes a metal shielding cover, which is configured to surround the first engaging portion. A composite connector as claimed in claim 6, wherein the metal shielding cover includes at least one spring sheet, and the at least one spring sheet is in contact with at least one of the contact pieces of the portion. A composite connector as claimed in claim 7, wherein at least one contact is a ground contact. A composite connector as in any one of claims 6 to 8, wherein each of the first engaging portion and the second engaging portion is made into a plug-type engaging portion. A composite connector as in any one of claims 6 to 8, wherein each of the first engaging portion and the second engaging portion is configured as a tongue.