CN221961258U - Floating connector and mating connector thereof - Google Patents

Abstract

The utility model discloses a floating connector and a mating connector thereof. The floating connector comprises a first shell, a second shell, a plurality of signal contacts and a plurality of power contacts, wherein the second shell is provided with a jogged part jogged with the counterpart connector in a first direction, and the second shell is assembled to the first shell in a mode of being capable of moving on a plane perpendicular to the first direction. The plurality of signal contacts and the plurality of power contacts are arranged along a second direction perpendicular to the first direction, and the plurality of power contacts are arranged on two sides of a signal contact group formed by the plurality of signal contacts and are separated from the signal contact group. The central axis of the power supply side spring portion is displaced inward in the second direction with respect to the central axis of the power supply side fixing portion when viewed from a third direction perpendicular to the first direction and the second direction. Thus, the plurality of power contacts can be prevented from interfering with the first housing during the floating of the second housing.

Description

Floating connector and its mating connector

Technical Field

The utility model relates to a floating connector and a matching connector thereof, in particular to a hybrid floating connector with a signal contact piece and a power contact piece and a matching connector thereof.

Background Art

It is known to use a hybrid floating connector with a signal contact and a power contact to transmit signals and power between circuit boards. Such a hybrid floating connector has been disclosed in US Pat. No. 9,484,656 B2.

However, when the layout of the circuit board pads is predefined and the outer dimensions of the connector are strictly specified, it may be necessary to displace a portion of the power contact relative to other portions, on the one hand to prevent the power contact from interfering with the fixed housing during the floating process of the movable housing, and on the other hand to make the gap between the contact and the power contact on the contact side different from the gap between the contact and the power contact on the welding side. The connector disclosed in US9484656B2 cannot meet this requirement.

Utility Model Content

One of the purposes of the present invention is to provide a floating connector, which can ensure a certain distance between a power contact and a signal contact and can also achieve miniaturization of the connector.

Another object of the utility model is to provide a floating connector, which can absorb the positioning error of the circuit board or the positioning error of the board-mounted connector.

According to an embodiment of the utility model, a floating connector is provided, comprising a first housing, a second housing, a plurality of signal contacts and a plurality of power contacts, the second housing having an engaging portion engaged with a mating connector in a first direction, the second housing being assembled to the first housing in a manner movable on a plane perpendicular to the first direction;

The plurality of signal contacts and the plurality of power contacts are arranged along a second direction perpendicular to the first direction, and the plurality of power contacts are arranged on both sides of a signal contact group formed by the plurality of signal contacts and separated from the signal contact group;

Each signal contact comprises: a signal side fixing portion, a first signal side holding portion, a signal side spring portion, a second signal side holding portion and a signal side contact portion, wherein the first signal side holding portion is held by the first housing, the second signal side holding portion is held by the second housing, the first signal side holding portion is continued from the signal side fixing portion, the signal side spring portion connects the first signal side holding portion and the second signal side holding portion, and the signal side contact portion is continued from the second signal side holding portion;

Each power contact comprises: a power side fixing portion, a first power side holding portion, a power side spring portion, a second power side holding portion and a power side contact portion, wherein the first power side holding portion is held by the first housing, the second power side holding portion is held by the second housing, the first power side holding portion is continued from the power side fixing portion, the power side spring portion connects the first power side holding portion and the second power side holding portion, and the power side contact portion is continued from the second power side holding portion;

When viewed from a third direction perpendicular to the first direction and the second direction, the central axis of the power supply side spring portion is offset inwardly in the second direction relative to the central axis of the power supply side fixing portion.

According to the floating connector of the utility model, each signal contact has a first width, and each power contact has a second width, and the second width is greater than the first width.

According to the floating connector of the utility model, the power supply side spring portion is formed with a plurality of elongated slits.

According to the floating connector of the utility model, when viewed from the third direction, the central axis of the power supply side spring portion is offset inwardly in the second direction relative to the central axis of the power supply side contact portion.

According to the floating connector of the utility model, the plurality of signal contacts and the plurality of power contacts are arranged in two rows along the second direction.

According to the floating connector of the utility model, when viewed from the second direction, the bending structure of the signal-side spring portion is different from the bending structure of the power-side spring portion.

According to the floating connector of the utility model, the extension length of the power side spring portion is greater than the extension length of the signal side spring portion.

According to the floating connector of the utility model, the signal side spring portion has a signal side vertical extension portion along the first direction, and the power side spring portion has a power side vertical extension portion along the first direction. When viewed from the second direction, the power side vertical extension portion is offset inwardly in the third direction relative to the signal side vertical extension portion.

According to another embodiment of the present invention, there is provided a mating connector for mating with a floating connector, comprising: a fixed housing, a plurality of signal contacts and a plurality of power contacts, the fixed housing having an engaging portion mating with the floating connector in a first direction;

The plurality of signal contacts and the plurality of power contacts are arranged along a second direction perpendicular to the first direction and are held by the fixed housing, and the plurality of power contacts are arranged on both sides of a signal contact group formed by the plurality of signal contacts and are separated from the signal contact group;

Each of the power contact members has a power side fixing portion at one end and a power side contact portion at the other end. When viewed from a third direction perpendicular to the first direction and the second direction, the central axis of the power side contact portion is offset inward in the second direction relative to the central axis of the power side fixing portion.

According to the mating connector of the present invention, each signal contact has a first width, and each power contact has a second width, and the second width is greater than the first width.

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

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a board-to-board connector assembly in a mating state according to an embodiment of the present invention.

FIG. 2 is a perspective view of a board-to-board connector assembly in an unmated state according to an embodiment of the present invention.

FIG. 3 is a perspective view of a floating connector according to an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a floating connector according to an embodiment of the present invention.

FIG. 5 is a perspective view of a signal contact and a power contact of a floating connector according to an embodiment of the present invention, wherein one signal contact and one power contact are enlarged and depicted.

FIG. 6 is a view of the power contact member enlarged in FIG. 5 as viewed from a third direction.

FIG. 7 is a view of the signal contact and the power contact according to the embodiment of the present invention viewed from a second direction.

FIG. 8 is a perspective view of a first modified example of the power contact of the floating connector.

FIG. 9 is a view of a first modified example of a signal contact and a power contact viewed from a second direction.

FIG. 10 is a perspective view of a second modified example of the power contact of the floating connector.

FIG. 11 is a view of a second modified example of a signal contact and a power contact viewed from a second direction.

FIG. 12 is a perspective view of a mating connector according to an embodiment of the present invention.

FIG. 13 is an exploded perspective view of a mating connector according to an embodiment of the present invention.

FIG. 14 is a perspective view of a signal contact and a power contact of a mating connector according to an embodiment of the present invention.

FIG. 15 is a view showing a signal contact and a power contact of a mating connector according to an embodiment of the present invention as viewed from a third direction.

Description of Reference Numerals

1: Board-to-board connector assembly

10: Floating connector

11: First shell

110: Containment Space

12: Second shell

120: Main body

121: Limit block

1200:Matching slot

13:Signal contact

131: Signal side fixing part

132: First signal side holding portion

133:Signal side spring part

1331: first extension

1332: first bending portion

1333: Second extension

1334: Second bending portion

1335: Third extension

134: Second signal side holding portion

135: Signal side contact portion

14: Power contact

141: Power supply side fixing part

142: First power supply side holding unit

143: Power supply side spring

1430A: Long slot

1430B: Long slot

1431: First extension

1432: First bend

1433: Second extension

1434: Second bend

1435: Third extension

144: Second power supply side holding unit

145: Power supply side contact part

15: U-shaped metal fittings

16: Power contact

161: Power supply side fixing part

162: First power supply side holding unit

163: Power supply side spring

1630A: Long slot

1630B: Long slot

1631: First extension

1632:Bending part

1633: Second extension

164: Second power supply side holding unit

165: Power supply side contact part

18: Power contact

181: Power supply side fixing part

182: First power supply side holding unit

183: Power supply side spring

1830A: Long slot

1830B: Long slot

1831: First extension

1832: First bend

1833: Second extension

1834: Second bend

184: Second power supply side holding portion

185: Power supply side contact

20:Mating connector

21:Fix the housing

211: Tongue

22:Signal contact

221: Signal side fixing part

222: First signal side holding portion

223: Signal side bending extension

224: Second signal side holding portion

225: Signal side contact portion

23: Power contact

231: Power supply side fixing part

232: First power supply side holding unit

233: Power supply side bending extension

234: Second power supply side holding unit

235: Power supply side contact part

A1: Center Line

A2: Center Line

A3: Center Line

A4: Center Line

A5: Center Line

D1: First direction

D2: Second direction

D3: Third direction

P1: First circuit board

P2: Second circuit board.

DETAILED DESCRIPTION

The board-to-board connector assembly of the present invention will be described below with reference to the accompanying drawings. In each of the drawings, the same elements or elements with the same function are marked with the same reference numerals. The drawings are not drawn to scale.

1 and 2, the components of the board-to-board connector assembly according to the embodiment of the present invention are briefly described, wherein FIG1 is a three-dimensional view of the board-to-board connector assembly according to the embodiment of the present invention in an engaged state, and FIG2 is a three-dimensional view of the board-to-board connector assembly according to the embodiment of the present invention in an unengaged state. The board-to-board connector assembly is indicated as a whole by reference numeral 1.

The board-to-board connector assembly 1 includes a floating connector 10 and a mating connector 20 mating with the floating connector 10. The floating connector 10 and the mating connector 20 are engaged with each other in a first direction D1. The floating connector 10 is fixed to the first circuit board P1 using surface mounting technology, and the mating connector 20 is fixed to the second circuit board P2 using surface mounting technology. An electrical connection is established between the first circuit board P1 and the second circuit board P2 through the board-to-board connector assembly 1. Because the floating connector 10 has a movable housing that can float, the floating connector 10 can absorb positioning errors of the connectors or circuit boards.

Referring to FIG. 3 and FIG. 4 , a floating connector 10 according to an embodiment of the present invention is briefly described. As shown in FIG. 3 and FIG. 4 , the floating connector 10 includes a first housing 11 as a fixed housing, a second housing 12 as a movable housing, a plurality of signal contacts 13 and a plurality of power contacts 14. The first housing 11 and the second housing 12 are made of an insulating resin material or a polymer material by injection molding. The signal contacts 13 and the power contacts 14 are made of a conductive material (e.g., copper or copper alloy).

The first housing 11 has a receiving space 110, and the lower portion of the second housing 12 is received in the receiving space 110. A gap is left between the first housing 11 and the second housing 12, allowing the second housing 12 to move relative to the first housing 11 in a plane perpendicular to the first direction D1.

The second housing 12 includes a main body 120 and stoppers 121 formed at both ends of the main body 120. The main body 120 of the second housing 12 is formed with a fitting slot 1200 as a fitting portion. Two U-shaped metal fittings 15 are respectively assembled at both ends of the first housing 11 so as to interfere with the stoppers 121. The U-shaped metal fittings 15 prevent the second housing 12 from moving in the first direction D1 and prevent the second housing 12 from detaching from the first housing 11. In this way, the second housing 12 is restricted to move relative to the first housing 11 only on a plane perpendicular to the first direction D1.

FIG5 is a three-dimensional diagram of the signal contact 13 and the power contact 14. As shown in FIG5, the signal contact 13 and the power contact 14 are arranged in two rows along a second direction D2 perpendicular to the first direction D1. The contacts in the two rows are mirror-symmetrical to each other. In each row of contacts, two power contacts 14 are respectively arranged on both sides of a signal contact group formed by the signal contacts 13 and are separated from the signal contact group. However, the utility model is not limited to this, and in each row of contacts, two power contacts 14 may also be arranged on the same side of the signal contact group. Although in the present embodiment, in each row of contacts, only one power contact is arranged on each side of the signal contact group, if necessary, more than two power contacts may be arranged on each side of the signal contact group.

In this embodiment, the floating connector 10 has 140 signal contacts 13 and 4 power contacts 14. However, the present invention is not limited thereto, and the number of signal contacts or power contacts can be increased or decreased as needed.

Each signal contact 13 includes: a signal side fixing portion 131, a first signal side holding portion 132, a signal side spring portion 133, a second signal side holding portion 134 and a signal side contact portion 135. The first signal side holding portion 132 is continued from the signal side fixing portion 131. The signal side spring portion 133 connects the first signal side holding portion 132 and the second signal side holding portion 134. The signal side contact portion 135 is continued from the second signal side holding portion 134. The signal side fixing portion 131 will be fixed to the circuit board by surface mounting technology. The first signal side holding portion 132 formed with a barb structure is pressed into the first housing 11 and held by the first housing 11. The second signal side holding portion 134 formed with a barb structure is pressed into the second housing 12 and held by the second housing 12.

The signal side spring portion 133 of the signal contact 13 sequentially includes: a first extension portion 1331, a first bent portion 1332, a second extension portion 1333, a second bent portion 1334 and a third extension portion 1335. The first extension portion 1331 and the third extension portion 1335 extend obliquely relative to the first direction D1. The second extension portion 1333 extends in the first direction D1.

Each power contact 14 includes: a power side fixing portion 141, a first power side holding portion 142, a power side spring portion 143, a second power side holding portion 144 and a power side contact portion 145. The first power side holding portion 142 is continued from the power side fixing portion 141. The power side spring portion 143 connects the first power side holding portion 142 and the second power side holding portion 144. The power side contact portion 145 is continued from the second power side holding portion 144. The power side fixing portion 141 will be fixed to the circuit board by surface mounting technology. The first power side holding portion 142 formed with a barb structure is pressed into the first housing 11 and held by the first housing 11. The second power side holding portion 144 formed with a barb structure is pressed into the second housing 12 and held by the second housing 12.

The power supply side spring portion 143 of the power supply contact 14 sequentially includes: a first extension portion 1431, a first bent portion 1432, a second extension portion 1433, a second bent portion 1434 and a third extension portion 1435. The first extension portion 1431 and the third extension portion 1435 extend obliquely relative to the first direction D1. The second extension portion 1433 extends in the first direction D1.

The signal-side contact portion 135 of the signal contact 13 and the power-side contact portion 145 of the power contact 14 are located in the fitting slot 1200 of the second housing 12 so as to contact with the contacts of the mating connector.

FIG6 is a view of the power contact 14 enlarged and depicted in FIG5 when viewed from the third direction D3. As shown in FIG6, the power contact 14 is configured such that the center line A2 of the power-side spring portion 143 is offset toward the left side (i.e., inward) of the drawing relative to the center line A1 of the power-side fixing portion 141 and the center line A3 of the power-side contact portion 145. Thus, interference between the power contact 14 and the first housing 11 can be avoided during the movement of the second housing 12 relative to the first housing 11.

FIG7 is a view of the signal contact 13 and the power contact 14 according to an embodiment of the utility model viewed from the second direction D2. In FIG7, the signal side fixing portion, the first signal side retaining portion, the second signal side retaining portion and the signal side contact portion of the signal contact 13 roughly overlap with the power contact 14, and the bending structure of the signal side spring portion of the signal contact 13 is different from the bending structure of the power side spring portion of the power contact 14. This is very different from the conventional technology. In conventional hybrid floating connectors, for the convenience of manufacturing, the spring portion of the power contact and the spring portion of the signal contact usually have the same or similar bending structure.

Since the power contact 14 has a greater width than the signal contact 13, the power side spring portion 143 of the power contact 14 has a greater stiffness than the signal side spring portion 133 of the signal contact 13. In order to promote the floating of the second housing, it is very advantageous to reduce the stiffness of the power side spring portion 143 of the power contact 14 so that the power side spring portion 143 of the power contact 14 is more easily deformed.

5 , a plurality of elongated slots 1430A and 1430B extending in the longitudinal direction are formed in the power supply side spring portion 143 of the power supply contact 14, wherein the elongated slots 1430A are separated from the elongated slots 1430B. The power supply side spring portion 143 is weakened by the formation of the elongated slots 1430A and 1430B.

It is also possible to reduce the rigidity of the power side spring portion 143 by extending the extension length of the power side spring portion 143. As shown in FIG7 , the power side spring portion 143 of the power contact 14 has a vertical extension portion (i.e., the second extension portion 1433) extending in the first direction D1, and the signal side spring portion 133 of the signal contact 13 has a vertical extension portion (i.e., the second extension portion 1333) extending in the first direction D1. The power side spring portion 143 of the power contact 14 is configured such that the vertical extension portion (i.e., the second extension portion 1433) of the power side spring portion 143 is offset inwardly in the third direction D3 relative to the vertical extension portion (i.e., the second extension portion 1333) of the signal side spring portion 133. In this way, the extension length of the power side spring portion 143 is extended.

FIG8 is a perspective view of a first variant of the power contact of the floating connector. The power contact according to the first variant is indicated as a whole by reference numeral 16. The description of the parts where the power contact 16 is the same as the power contact 14 is omitted. The power contact 16 has a power side fixing portion 161, a first power side holding portion 162, a power side spring portion 163, a second power side holding portion 164 and a power side contact portion 165. A plurality of elongated slots 1630A and 1630B extending in the longitudinal direction are formed in the power side spring portion 163 of the power contact 16, wherein the elongated slots 1630A are separated from the elongated slots 1630B. The power side spring portion 163 is weakened by the formation of the elongated slots 1630A and 1630B.

The power side spring portion 163 has a first extension portion 1631, a bent portion 1632 and a second extension portion 1633. FIG. 9 is a view of the signal contact 13 and the power contact 16 according to an embodiment of the utility model viewed from the second direction D2. As shown in FIG. 9, the second extension portion 1633 is a vertical extension portion extending in the first direction D1 and is aligned with the second power side retaining portion 164 and the power side contact portion 165. The power side spring portion 163 of the power contact 16 is configured such that the vertical extension portion of the power side spring portion 163 (i.e., the second extension portion 1633) is offset inwardly in the third direction D3 relative to the vertical extension portion of the signal side spring portion 133 (i.e., the second extension portion 1333).

FIG10 is a perspective view of a second modified example of the power contact of the floating connector. The power contact according to the second modified example is indicated as a whole by reference numeral 18. The description of the parts where the power contact 18 is the same as the power contact 14 or 16 is omitted. The power contact 18 has a power side fixing portion 181, a first power side holding portion 182, a power side spring portion 183, a second power side holding portion 184 and a power side contact portion 185. A plurality of elongated slots 1830A and 1830B extending in the longitudinal direction thereof are formed in the power side spring portion 183 of the power contact 18, wherein the elongated slots 1830A are separated from the elongated slots 1830B. The power side spring portion 183 is weakened by the formation of the elongated slots 1830A and 1830B.

The power side spring portion 183 has a first extension portion 1831, a first bent portion 1832, a second extension portion 1833, and a second bent portion 1834. FIG. 11 is a view of the signal contact 13 and the power contact 18 according to an embodiment of the utility model viewed from the second direction D2. As shown in FIG. 11, the second extension portion 1833 is a vertical extension portion extending in the first direction D1. In FIG. 11, the second extension portion 1833 is not aligned with the second power side retaining portion 184 and the power side contact portion 185, and the second extension portion 1833 is roughly aligned with the second extension portion 1333 of the signal side spring portion 133.

12 and 13 , wherein FIG12 is a perspective view of the counterpart connector of the floating connector 10 , and FIG13 is an exploded perspective view of the counterpart connector of the floating connector 10 . The counterpart connector is generally denoted by reference numeral 20 .

The mating connector 20 includes a fixed housing 21, a plurality of signal contacts 22, and a plurality of power contacts 23. The fixed housing 21 is made of an insulating resin material or a polymer material by injection molding. The signal contacts 22 and the power contacts 23 are made of a conductive material (such as copper or a copper alloy). The fixed housing 21 has a tongue 211 as a fitting portion.

FIG. 14 is a stereoscopic view of the signal contact 22 and the power contact 23. As shown in FIG. 14, the signal contact 22 and the power contact 23 are arranged in two rows along a second direction D2 perpendicular to the first direction D1. The contacts in the two rows are mirror-symmetrical to each other. In each row of contacts, two power contacts 23 are respectively arranged on both sides of a signal contact group formed by the signal contact 22 and separated from the signal contact group. However, the utility model is not limited thereto. The contact layout of the mating connector depends on the contact layout of the floating connector.

Each signal contact 22 includes: a signal side fixing portion 221, a first signal side holding portion 222, a signal side bending extension portion 223, a second signal side holding portion 224 and a signal side contact portion 225. The first signal side holding portion 222 is continued from the signal side fixing portion 221. The signal side bending extension portion 223 connects the first signal side holding portion 222 and the second signal side holding portion 224. The signal side contact portion 225 is continued from the second signal side holding portion 224. The signal side fixing portion 221 will be fixed to the circuit board by surface mounting technology. The first signal side holding portion 222 and the second signal side holding portion 224 formed with a barb structure are press-fitted into the fixed housing 21 and held by the fixed housing 21. Specifically, the first signal side holding portion 222 is fixed near the lower edge of the fixed housing 21, and the second signal side holding portion 224 is fixed to the tongue piece 211. The signal side contact portion 225 is positioned on the tongue piece 211.

Each power contact 23 includes: a power side fixing portion 231, a first power side holding portion 232, a power side bending extension portion 233, a second power side holding portion 234 and a power side contact portion 235. The first power side holding portion 232 is continued from the power side fixing portion 231. The power side bending extension portion 233 connects the first power side holding portion 232 and the second power side holding portion 234. The power side contact portion 235 is continued from the second power side holding portion 234. The power side fixing portion 231 will be fixed to the circuit board by surface mounting technology. The first power side holding portion 232 and the second power side holding portion 234 formed with a barb structure are pressed into the fixed housing 21 and are held by the fixed housing 21. Specifically, the first power side holding portion 232 is fixed near the lower edge of the fixed housing 21, and the second power side holding portion 234 is fixed to the tongue 211. The power side contact portion 235 is positioned on the tongue 211.

FIG15 is a view of the signal contact 22 and the power contact 23 of the mating connector 20 viewed from the third direction D3. As shown in FIG15, the center line A5 of the power side contact portion 235 is offset inwardly in the second direction D2 relative to the center line A4 of the power side fixing portion 231. With the help of the power side contact portion 235 being offset relative to the power side fixing portion 231, even in the case where the pad layout of the circuit board has been predetermined (that is, the gap between the signal contact and the power contact on the welding side has been predetermined and cannot be changed), the power contact can still be used to adjust the gap between the signal contact and the power contact on the contact side so that the gap on the contact side matches that of the mating floating connector.

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

Claims (10)

1. A floating connector, comprising a first housing, a second housing, a plurality of signal contacts and a plurality of power contacts, wherein the second housing has an engaging portion that engages with a mating connector in a first direction, and the second housing is assembled to the first housing in a manner that it can move on a plane perpendicular to the first direction; The plurality of signal contacts and the plurality of power contacts are arranged along a second direction perpendicular to the first direction, and the plurality of power contacts are arranged on both sides of a signal contact group formed by the plurality of signal contacts and separated from the signal contact group; Each signal contact comprises: a signal side fixing portion, a first signal side holding portion, a signal side spring portion, a second signal side holding portion and a signal side contact portion, wherein the first signal side holding portion is held by the first housing, the second signal side holding portion is held by the second housing, the first signal side holding portion is continued from the signal side fixing portion, the signal side spring portion connects the first signal side holding portion and the second signal side holding portion, and the signal side contact portion is continued from the second signal side holding portion; Each power contact comprises: a power side fixing portion, a first power side holding portion, a power side spring portion, a second power side holding portion and a power side contact portion, wherein the first power side holding portion is held by the first housing, the second power side holding portion is held by the second housing, the first power side holding portion is continued from the power side fixing portion, the power side spring portion connects the first power side holding portion and the second power side holding portion, and the power side contact portion is continued from the second power side holding portion; When viewed from a third direction perpendicular to the first direction and the second direction, the central axis of the power supply side spring portion is offset inwardly in the second direction relative to the central axis of the power supply side fixing portion. 2 . The floating connector as claimed in claim 1 , wherein each signal contact has a first width, each power contact has a second width, and the second width is greater than the first width. 3. The floating connector according to claim 2, wherein the power supply side spring portion is formed with a plurality of elongated slits. 4 . The floating connector according to claim 1 , wherein when viewed from the third direction, a central axis of the power-side spring portion is offset inwardly in the second direction relative to a central axis of the power-side contact portion. 5 . The floating connector as claimed in claim 1 , wherein the plurality of signal contacts and the plurality of power contacts are arranged in two rows along the second direction. 6 . The floating connector according to claim 1 , wherein when viewed from the second direction, a bending structure of the signal-side spring portion is different from a bending structure of the power-side spring portion. 7 . The floating connector according to claim 1 , wherein an extension length of the power-side spring portion is greater than an extension length of the signal-side spring portion. 8. A floating connector as described in any one of claims 1 to 4, characterized in that the signal side spring portion has a signal side vertical extension portion along the first direction, and the power side spring portion has a power side vertical extension portion along the first direction, and when viewed from the second direction, the power side vertical extension portion is offset inwardly in the third direction relative to the signal side vertical extension portion. 9. A mating connector for mating with a floating connector, characterized in that it comprises: a fixed housing, a plurality of signal contacts and a plurality of power contacts, the fixed housing having an engaging portion that engages with the floating connector in a first direction; The plurality of signal contacts and the plurality of power contacts are arranged along a second direction perpendicular to the first direction and are held by the fixed housing, and the plurality of power contacts are arranged on both sides of a signal contact group formed by the plurality of signal contacts and are separated from the signal contact group; Each of the power contact members has a power side fixing portion at one end and a power side contact portion at the other end. When viewed from a third direction perpendicular to the first direction and the second direction, the central axis of the power side contact portion is offset inward in the second direction relative to the central axis of the power side fixing portion. 10 . The mating connector as claimed in claim 9 , wherein each signal contact has a first width, each power contact has a second width, and the second width is greater than the first width.