Floating connector and mating connector thereof

Abstract

A floating connector and a mating connector thereof are disclosed. The floating connector comprises a first housing, a second housing, a plurality of signal contacts and a plurality of power source contacts, wherein the second housing has a mating portion mateable with the mating connector in a first direction, and the second housing is mounted to the first housing in such a manner that it is movable in a plane perpendicular to the first direction. The signal contacts and the power source contacts are arranged along a second direction perpendicular to the first direction. The power source contacts are arranged at two sides of a signal contact group formed by the plurality of signal contacts and spaced from the signal contact group. When viewed from a third direction perpendicular to the first and second directions, a centerline of a power-source-side spring portion is offset inwardly in the second direction with respect to a centerline of a power-source-side fixed portion. Accordingly, interference between the power source contacts and the first housing during movement of the second housing can be prevented.

Description

BACKGROUND OF THE INVENTION Field of the Invention

[0001] The present invention relates to a floating connector and a mating connector thereof, particularly to a hybrid floating connector having a plurality of signal contacts and a plurality of power source contacts and a mating connector thereof.Descriptions of the Related Art

[0002] It is known to use a hybrid floating connector having a plurality of signal contacts and a plurality of power source contacts for the signal transmission and the electric power transmission between two circuit boards. This type of hybrid floating connector has been disclosed in U.S. Patent No. 9484656B2.

[0003] However, in the situation that the layout of solder pads of the circuit boards has been predefined and the external dimensions of the connector are strictly defined, it may be necessary to offset a portion of the power source contact with respect to other portion of the power source contact, on one hand to prevent interference between the power source contact and the stationary housing during movement of the movable housing, and on the other hand to make the gap between the signal contact and the power source contact at a contact side different from the gap between the signal contact and the power source contact on a soldered side. The connector disclosed in U.S. Patent No. 9484656B2 cannot meet this requirement.SUMMARY OF THE INVENTION

[0004] One object of the present invention is to provide a floating connector that ensures a certain spacing between the power source contact and the signal contact while also achieving miniaturization of the connector.

[0005] Another object of the present invention is to provide a floating connector capable of absorbing positioning errors of the circuit boards or positioning errors of the board-mounted connectors.

[0006] According to one aspect of the present invention, a floating connector is provided, which comprises a first housing, a second housing, a plurality of signal contacts and a plurality of power source contacts, the second housing having a mating portion mateable with a mating connector in a first direction, the second housing being mounted to the first housing in such a manner that it is movable in a plane perpendicular to the first direction, wherein the plurality of signal contacts and the plurality of power source contacts are arranged in a second direction perpendicular to the first direction, and the plurality of power source contacts are disposed on both sides of a signal contact group formed by the plurality of signal contacts and spaced apart from the signal contact group; each signal contact includes: a signal-side fixed portion, a first signal-side held portion, a signal-side spring portion, a second signal-side held portion and a signal-side contact portion, the first signal-side held portion is held by the first housing, the second signal-side held portion is held by the second housing, the first signal-side held portion extends from the signal-side fixed portion, the first signal-side held portion and the second signal-side held portion are connected with each other by the signal-side spring portion, and the signal-side contact portion extends from the second signal-side held portion; each power source contact includes: a power-source-side fixed portion, a first power-source-side held portion, a power-source-side spring portion, a second power-source-side held portion and a power-source-side contact portion, the first power-source-side held portion is held by the first housing, the second power-source-side held portion is held by the second housing, the first power-source-side held portion extends from the power-source-side fixed portion, the first power-source-side held portion and the second power-source-side held portion are connected with each other by the power-source-side spring portion, and the power-source-side contact portion extends from the second power-source-side held portion; and a centerline of the power-source-side spring portion is offset inwardly in the second direction with respect to a centerline of the power-source-side fixed portion when viewed from a third direction perpendicular to the first direction and the second direction.

[0007] According to the floating connector of the present invention, each signal contact has a first width, and each power source contact has a second width, the second width being greater than the first width.

[0008] According to the floating connector of the present invention, the power-source-side spring portion is formed with a plurality of elongated slots.

[0009] According to the floating connector of the present invention, the centerline of the power-source-side spring portion is offset inwardly in the second direction with respect to a centerline of the power-source-side contact portion when viewed from the third direction.

[0010] According to the floating connector of the present invention, the plurality of signal contacts and the plurality of power source contacts are arranged in the second direction in two rows.

[0011] According to the floating connector of the present invention, the signal-side spring portion is bent differently from the power-source-side spring portion when viewed from the second direction.

[0012] According to the floating connector of the present invention, the power-source-side spring portion extends longer than the signal-side spring portion.

[0013] According to the floating connector of the present invention, the signal-side-spring portion has a signal-side vertical extension portion extending in the first direction, the power-source-side spring portion has a power-source-side vertical extension portion extending in the first direction, and the power-source-side vertical extension portion is offset inwardly in the third direction with respect to the signal-side vertical extension portion when viewed from the second direction.

[0014] According to a further aspect of the present invention, a mating connector mateable with a floating connector is provided, which comprises: a stationary housing, a plurality of signal contacts and a plurality of power source contacts, the stationary housing having a mating portion mateable with a floating connector in a first direction, wherein the plurality of signal contacts and the plurality of power source contacts are arranged in a second direction perpendicular to the first direction and held by the stationary housing, and the plurality of power source contacts are disposed on both sides of a signal contact group formed by the plurality of signal contacts and spaced apart from the signal contact group; and each power source contact has a fixed portion at one end and a power-source-side contact portion at the other end, a centerline of the power-source-side contact portion is offset inwardly in the second direction with respect to a centerline of the power-source-side fixed portion when viewed from a third direction perpendicular to the first direction and the second direction.

[0015] According to the mating connector of the present invention, each signal contact has a first width, and each power source contact has a second width, the second width being greater than the first width.

[0016] The connector of the present invention provides a simple, reliable and easy manner allowing users to quickly lock and release the flat connection object while using a tactile indicator portion to assist the users in determining the position for operating the unlocking portion.

[0017] The above and other objects and advantages of the present invention will become apparent from the accompanying drawings and the following detailed description.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a perspective view of a board-to-board connector assembly according to an embodiment of the present invention in a mated state. FIG. 2 is a perspective view of a board-to-board connector assembly according to an embodiment of the present invention in an unmated state. FIG. 3 is a perspective view of a floating connector according to an embodiment of the present invention. FIG. 4 is an exploded view of a floating connector according to an embodiment of the present invention. FIG. 5 is a perspective view of signal contacts and power source contacts of a floating connector according to an embodiment of the present invention, wherein one signal contact and one power source contact are enlarged. FIG. 6 is a view of the one power source contact, which is enlarged in FIG. 5, viewed from the third direction. FIG. 7 is a view of the signal contacts and power source contacts according to the embodiment of the present invention viewed from the second direction. FIG. 8 is a perspective view of a first variant of a power source contact of a floating connector. FIG. 9 is a view of the power source contacts of the first variant and the signal contacts viewed from the second direction. FIG. 10 is a perspective view of a second variant of a power source contact of a floating connector. FIG. 11 is a view of the power source contacts of the second variant and the signal contacts viewed from the 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 view of a mating connector according to an embodiment of the present invention. FIG. 14 is a perspective view of signal contacts and power source contacts of a mating connector according to an embodiment of the present invention, wherein one signal contact and one power source contact are enlarged. FIG. 15 is a view of the signal contacts and power source contacts according to an embodiment of the present invention viewed from the third direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0019] The board-to-board connector assembly according to the embodiment of the present invention will be described with reference to the drawings. In the drawings, the same components or components with similar functions are denoted by the same reference numerals. The drawings are not necessarily drawn to scale.

[0020] The elements of the board-to-board connector assembly according to an embodiment of the present invention are briefly described by referring to FIGs. 1 and 2, wherein FIG. 1 is a perspective view of a board-to-board connector assembly according to an embodiment of the present invention in a mated state, and FIG. 2 is a perspective view of the board-to-board connector assembly according to the embodiment of the present invention in an unmated state. The board-to-board connector assembly is designated as a whole by the reference numeral "1".

[0021] The board-to-board connector assembly 1 comprises a floating connector 10 and a mating connector 20 which mates with the floating connector 10. The floating connector 10 and the mating connector 20 mate with each other in a first direction D1. The floating connector 10 is mounted to a first circuit board P1 by using surface mount technology (SMT), and the mating connector 20 is mounted to a second circuit board P2 by using surface mount technology (SMT). Electrical connection between the first circuit board P1 and the second circuit board P2 is established by means of the board-to-board connector assembly 1. Since the floating connector 10 has a movable housing which is floatable, the floating connector 10 is capable of absorbing positioning errors of the connectors or the circuit boards.

[0022] The floating connector 10 according to the embodiment of the present invention is described by referring to FIGs. 3 and 4. As shown in FIGs. 3 and 4, the floating connector 10 comprises a first housing 11 serving as a stationary housing, a second housing 12 serving as a movable housing, a plurality of signal contacts 13 and a plurality of power source contacts 14. The first housing 11 and the second housing 12 are made of insulating resin material or polymer material by using injection molding. The signal contacts 13 and the power source contacts 14 are made of electrically conductive material (such as copper or copper alloy).

[0023] 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 exists between the first housing 11 and the second housing 12 and allows the second housing 12 to move with respect to the first housing 11 in a plane perpendicular to the first direction D1.

[0024] The second housing 12 has a main body 120 and two limiting blocks 121 formed at the two ends of the main body 120, respectively. The main body 120 of the second housing 12 is formed with a mating opening 1200 serving as a mating portion. Two U-shaped metal fittings 15 are respectively mounted at the two ends of the first housing 11 so as to interfere with the limiting blocks 121. The U-shaped metal fittings 15 are used to prevent the second housing 12 from moving in the first direction D1 and to prevent the second housing 12 from being detached from the first housing 11. In this way, the second housing 12 is restricted to be movable with respect to the first housing 11 only in a plane perpendicular to the first direction D1.

[0025] FIG. 5 is a perspective view of the signal contacts 13 and the power source contacts 14. As shown in FIG. 5, the signal contacts 13 and the power source contacts 14 are arranged in two rows in a second direction D2 perpendicular to the first direction D1. The two rows of contacts are mirror-symmetrical to each other. In each row of contacts, two power source contacts 14 are respectively disposed on both sides of a signal contact group formed by signal contacts 13 and spaced apart from the signal contact group. However, the present invention is not limited thereto, and the two power source contacts 14 may be disposed on the same side of the signal contact group in each row of contacts. Although in this embodiment, only one power source contact is disposed on each side of the signal contact group in each row of contacts, if necessary, two or more power source contacts may be disposed on each side of the signal contact group.

[0026] In this embodiment, the floating connector 10 has 140 signal contacts 13 and four power source contacts 14. However, the present invention is not limited thereto, and the number of signal contacts or power source contacts can be increased or decreased optionally.

[0027] Each signal contact 13 comprises: a signal-side fixed portion 131, a first signal-side held portion 132, a signal-side spring portion 133, a second signal-side held portion 134 and a signal-side contact portion 135. The first signal-side held portion 132 extends from the signal-side fixed portion 131. The first signal-side holding portion 132 and the second signal-side holding portion 134 are connected by the signal-side spring portion 133. The signal-side contact portion 135 extends from the second signal-side held portion 134. The signal-side fixed portion 131 will be fixed to the circuit board by using surface mount technology (SMT). The first signal-side held portion 132 formed with a barb structure is press-fitted into the first housing 11 and is held by the first housing 11. The second signal-side held portion 134 formed with a barb structure is press-fitted into the second housing 12 and is held by the second housing 12.

[0028] The signal-side spring portion 133 of the signal contact 13 comprises: a first extension portion 1331, a first bent portion 1332, a second extension portion 1333, a second bending portion 1334 and a third extension portion 1335 in this older. The first extension portion 1331 and the third extension portion 1335 extend obliquely with respect to the first direction D1. The second extension portion 1333 extends in the first direction D1.

[0029] Each power source contact 14 comprises: a power-source-side fixed portion 141, a first power-source-side held portion 142, a power-source-side spring portion 143, a second power-source-side held portion 144 and a power-source-side contact portion 145. The first power-source-side held portion 142 extends from the power-source-side fixed portion 141. The first power-source-side held portion 142 and the second power-source-side held portion 144 are connected by the power-source-side spring portion 143. The power-source-side contact portion 145 extends from the second power-source-side held portion 144. The power-source-side fixed portion 141 will be fixed to the circuit board by using surface mount technology (SMT). The first power-source-side held portion 142 formed with a barb structure is press-fitted into the first housing 11 and is held by the first housing 11. The second power-source-side held portion 144 formed with a barb structure is press-fitted into the second housing 12 and is held by the second housing 12.

[0030] The power-source-side spring portion 143 of the power source contact 14 comprises: 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 in this older. The first extension portion 1431 and the third extension portion 1435 extend obliquely with respect to the first direction D1. The second extension portion 1433 extends in the first direction D1.

[0031] The signal-side contact portion 135 of the signal contact 13 and the power-source-side contact portion 145 of the power source contact 14 are located in the mating opening 1200 of the second housing 12 so as to be in contact with the contacts of the mating connector.

[0032] FIG. 6 is a view of the power source contact 14, which is enlarged in FIG. 5, viewed from the third direction D3. As shown in FIG. 6, the power source contact 14 is configured such that the centerline A2 of the power-source-side spring portion 143 is offset in the leftward direction of the drawing sheet (i.e., the direction towards the central portion of the connector) with respect to the centerline A1 of the power-source-side fixed portion 141 and the centerline A3 of the power-source-side contact portion 145. This prevents interference between the power source contact 14 and the first housing 11 during movement of the second housing 12 with respect to the first housing 11.

[0033] FIG. 7 is a view of the signal contacts 13 and power source contacts 14 according to the embodiment of the present invention, viewed from the second direction D2. In FIG. 7, the signal-side fixed portion, the first signal-side held portion, the second signal-side held portion and the signal-side contact portion of the signal contact 13 substantially overlap those of the power source contact 14, while the signal-side spring portion of the signal contact 13 is bent differently from the power-source-side spring portion of the power source contact 14. This is very different from the prior art. In known hybrid floating connectors, to facilitate manufacturing, the spring portion of the power source contact and the spring portion of the signal contact typically have the same or similar bent structure.

[0034] Since the power source contact 14 has a larger width than the signal contact 13, the power-source-side spring portion 143 of the power source contact 14 has a greater stiffness as compared with the signal-side spring portion 133 of the signal contact 13. In order to promote the floatability of the second housing, it is very beneficial to reduce the stiffness of the power-source-side spring portion 143 of the power source contact 14 and make it easier to deform.

[0035] As can be seen in FIG. 5, a plurality of elongated slots 1430A and 1430B extending longitudinally are formed in the power-source-side spring portion 143 of the power source contact 14, wherein the elongated slots 1430A are spaced apart from the elongated slots 1430B. The power-source-side spring portion 143 is weakened by the formation of the elongated slots 1430A and 1430B.

[0036] It is also possible to reduce the stiffness of the power-source-side spring portion 143 by lengthening the power-source-side spring portion 143. As shown in FIG. 7, the power-source-side spring portion 143 of the power source 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-source-side spring portion 143 of the power source contact 14 is configured such that the vertical extension portion (i.e., the second extension portion 1433) of the power-source-side spring portion 143 is offset inwardly in the third direction D3 with respect to the vertical extension portion (i.e., the second extension portion 1333) of the signal-side spring portion 133. In this way, the power-source-side spring portion 143 is lengthened.

[0037] FIG. 8 is a perspective view of a first variant of the power source contact of the floating connector. The power source contact according to the first variant is designated as a whole by the reference numeral "16". The description of the portion pf the power source contact 16 similar to the power source contact 14 is omitted. The power source contact 16 has a power-source-side fixed portion 161, a first power-source-side held portion 162, a power-source-side spring portion 163, a second power-source-side held portion 164, and a power-source-side contact portion 165. A plurality of elongated slots 1630A and 1630B extending longitudinally are formed in the power-source-side spring portion 163, wherein the elongated slots 1630A are spaced apart from the elongated slots 1630B. The power-source-side spring portion 163 is weakened by the formation of the elongated slots 1630A and 1630B.

[0038] The power-source-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 power source contacts 16 according to the first variant and the signal contacts 13, 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-source-side held portion 164 and the power-source-side contact portion 165. The power-source-side spring portion 163 of the power source contact 16 is configured such that the vertical extension portion (i.e., the second extension portion 1633) of the power-source-side spring portion 163 is offset inwardly in the third direction D3 with respect to the vertical extension portion (i.e., the second extension portion 1333) of the signal-side spring portion 133.

[0039] FIG. 10 is a perspective view of a second variant of a power source contact of a floating connector. The power source contact according to the second variant is designated as a whole by the reference numeral "18". The description of the portion of the power source contact 18 similar to the power source contact 14 or 16 is omitted. The power source contact 18 has a power-source-side fixed portion 181, a first power-source-side held portion 182, a power-source-side spring portion 183, a second power-source-side held portion 184, and a power-source-side contact portion 185. A plurality of elongated slots 1830A and 1830B extending longitudinally are formed in the power-source-side spring portion 183, wherein the elongated slots 1830A are spaced apart from the elongated slots 1830B. The power-source-side spring portion 183 is weakened by the formation of the elongated slots 1830A and 1830B.

[0040] The power-source-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 power source contacts 18 according to the second variant and the signal contacts 13, 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-source-side held portion 184 and the power-source-side contact portion 185, but is substantially aligned with the second extension portion 1333 of the signal-side spring portion 133.

[0041] The mating connector of the floating connector 10 will be described with reference to FIGs. 12 and 13, wherein FIG. 12 is a perspective view of the mating connector for the floating connector 10, and FIG. 13 is an exploded perspective view of the mating connector for the floating connector 10. The mating connector is designated as a whole by the reference numeral "20".

[0042] The mating connector 20 comprises a stationary housing 21, a plurality of signal contacts 22, and a plurality of power source contacts 23. The stationary housing 21 is made of insulating resin material or polymer material by injection molding. The signal contacts 22 and power source contacts 23 are made of conductive material (such as copper or copper alloy). The stationary housing 21 has a tongue 211 which serves as a mating portion.

[0043] FIG. 14 is a perspective view of the signal contacts 22 and the power source contacts 23. As shown in FIG. 14, the signal contacts 22 and the power source contacts 23 are arranged in the second direction D2 perpendicular to the first direction D1 in two rows. The two rows of contacts are mirror-symmetrical to each other. In each row of contacts, two power source contacts 23 are respectively disposed on both sides of a signal contact group formed by signal contacts 22 and spaced apart from the signal contact group. However, the present invention is not limited thereto. The layout of the contacts of the mating connector depends on the layout of the contacts of the floating connector.

[0044] Each signal contact 22 comprises: a signal-side fixed portion 221, a first signal-side held portion 222, a signal-side bent extension portion 223, a second signal-side held portion 224, and a signal-side contact portion 225. The first signal-side held portion 222 extends from the signal-side fixed portion 221. The first signal-side held portion 222 and the second signal-side held portion 224 are connected by the signal-side bent extension portion 223. The signal-side contact portion 225 extends from the second signal-side held portion 224. The signal-side fixed portion 221 will be fixed to the circuit board by using surface mount technology (SMT). The first signal-side held portion 222 and the second signal-side held portion 224 each of which is formed with a barb structure are press-fitted into the stationary housing 21 and are held by the stationary housing 21. Specifically, the first signal-side held portion 222 is fixed near the lower edge of the stationary housing 21, and the second signal-side held portion 224 is fixed to the tongue 211. The signal-side contact portion 225 is positioned on the tongue 211.

[0045] Each power source contact 23 comprises: a power-source-side fixed portion 231, a first power-source-side held portion 232, a power-source-side bent extension portion 233, a second power-source-side held portion 234, and a power-source-side contact portion 235. The first power-source-side held portion 232 extends from the power-source-side fixed portion 231. The first power-source-side held portion 232 and the second power-source-side held portion 234 are connected by the power-source-side bending extension portion 233. The power-source-side contact portion 235 extends from the second power-source-side held portion 234. The power-source-side fixed portion 231 will be fixed to the circuit board by using surface mount technology (SMT). The first power-source-side held portion 232 and the second power-source-side held portion 234 each of which is formed with a barb structure are press-fitted into the stationary housing 21 and are held by the stationary housing 21. Specifically, the first power-source-side held portion 232 is fixed near the lower edge of the stationary housing 21, and the second power-source-side held portion 234 is fixed to the tongue 211. The power-source-side contact portion 235 is positioned on the tongue 211.

[0046] FIG. 15 is a view of the signal contacts 22 and the power source contacts 23 of the mating connector 20 viewed from the third direction D3. As shown in FIG. 15, the centerline A5 of the power-source-side contact portion 235 is offset inwardly in the second direction D2 with respect to the centerline A4 of the power-source-side fixed portion 231. With aid of offsetting of the power-source-side contact portion 235 with respect to the power-source-side fixed portion 231, even if the solder pad layout of the circuit board is predetermined (i.e., the gap between the signal contacts and power source contacts on the soldered side is predetermined and cannot be changed), the power source contacts can be used to adjust the gap between the signal contacts and power source contacts on the contact side so that the gap on the contact side can match that of the mating floating connector.

[0047] While this invention has been described in reference to a preferred embodiment, it should be understood that numerous changes and modifications could be made within the spirit and scope of the inventive concepts described. Accordingly, it is intended that the invention not be limited to the disclosed embodiment, but that it have the full scope permitted by the language of the following claims.

Claims

1. A floating connector (10), comprising a first housing (11), a second housing (12), a plurality of signal contacts (13) and a plurality of power source contacts (14;16;18), the second housing (12) having a mating portion (1200) mateable with a mating connector (20) in a first direction (D1), the second housing (12) being mounted to the first housing (11) in such a manner that it is movable in a plane perpendicular to the first direction (D1) with respect to the first housing (11), wherein the plurality of signal contacts (13) and the plurality of power source contacts (14) are arranged in a second direction (D2) perpendicular to the first direction (D1), and the plurality of power source contacts (14) are disposed on both sides of a signal contact group formed by the plurality of signal contacts (13) and spaced apart from the signal contact group; each signal contact (13) includes: a signal-side fixed portion (131), a first signal-side held portion (132), a signal-side spring portion (133), a second signal-side held portion (134) and a signal-side contact portion (135), the first signal-side held portion (132) is held by the first housing (11), the second signal-side held portion (134) is held by the second housing (12), the first signal-side held portion (132) extends from the signal-side fixed portion (131), the first signal-side held portion (132) and the second signal-side held portion (134) are connected with each other by the signal-side spring portion (133), and the signal-side contact portion (135) extends from the second signal-side held portion (134); each power source contact (14;16; 18) includes: a power-source-side fixed portion (141;161;181), a first power-source-side held portion (142;162;182), a power-source-side spring portion (143;163;183), a second power-source-side held portion (144;164;184) and a power-source-side contact portion (145;165;185), the first power-source-side held portion (142;162;182) is held by the first housing (11), the second power-source-side held portion (144; 164; 184) is held by the second housing (12), the first power-source-side held portion (142; 162; 182) extends from the power-source-side fixed portion (141;161;181), the first power-source-side held portion (142; 162; 182) and the second power-source-side held portion (144;164;184) are connected with each other by the power-source-side spring portion (143;163;183), and the power-source-side contact portion (145;165;185) extends from the second power-source-side held portion (144;164;184); and characterized in that a centerline (A2) of the power-source-side spring portion (143;163;183) is offset inwardly in the second direction (D2) with respect to a centerline (A1) of the power-source-side fixed portion (141;161;181) when viewed from a third direction (D3) perpendicular to the first direction (D1) and the second direction (D2).

2. The floating connector (10) of claim 1, wherein each signal contact (13) has a first width, and each power source contact (14;16;18) has a second width, the second width being greater than the first width.

3. The floating connector (10) of claim 2, wherein the power-source-side spring portion (143;163;183) is formed with a plurality of elongated slots (1430A,1430B;1630A, 1630B;1830A,1830B).

4. The floating connector (10) of claim 1, wherein the centerline (A2) of the power-source-side spring portion (143;163;183) is offset inwardly in the second direction (D2) with respect to a centerline (A3) of the power-source-side contact portion (145;165;185) when viewed from the third direction (D3).

5. The floating connector (10) of claim 1, wherein the plurality of signal contacts (13) and the plurality of power source contacts (14; 16; 18) are arranged in the second direction (D2) in two rows.

6. The floating connector (10) of any one of claims 1 to 4, wherein the signal-side spring portion (133) is bent differently from the power-source-side spring portion (143;163;183) when viewed from the second direction (D2).

7. The floating connector (10) of any one of claims 1 to 4, wherein the power-source-side spring portion (143;163;183) extends longer than the signal-side spring portion (133).

8. The floating connector (10) of any one of claims 1 to 4, wherein the signal-side-spring portion (133) has a signal-side vertical extension portion (1333) extending in the first direction (D1), the power-source-side spring portion (143;163) has a power-source-side vertical extension portion (1433;1633) extending in the first direction (D1), and the power-source-side vertical extension portion (1433;1633) is offset inwardly in the third direction (D3) with respect to the signal-side vertical extension portion (1333) when viewed from the second direction (D2).

9. A mating connector (20) mateable with a floating connector (10), the mating connector (20) comprising: a stationary housing (21), a plurality of signal contacts (22) and a plurality of power source contacts (23), the stationary housing (21) having a mating portion (211) mateable with the floating connector (10) in a first direction (D1), wherein the plurality of signal contacts (22) and the plurality of power source contacts (23) are arranged in a second direction (D2) perpendicular to the first direction (D1) and held by the stationary housing (21), and the plurality of power source contacts (23) are disposed on both sides of a signal contact group formed by the plurality of signal contacts (22) and spaced apart from the signal contact group; and each power source contact (23) has a power-source-side fixed portion (231) at one end and a power-source-side contact portion (235) at the other end, a centerline (A5) of the power-source-side contact portion (235) is offset inwardly in the second direction (D2) with respect to a centerline (A4) of the power-source-side fixed portion (231) when viewed from a third direction (D3) perpendicular to the first direction (D1) and the second direction (D2).

10. The mating connector (20) of claim 9, wherein each signal contact (22) has a first width, and each power source contact (23) has a second width, the second width being greater than the first width.

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