TWM468042U - Electrical connector and assembly thereof - Google Patents

Description

Electrical connector and combinations thereof

The present invention is an electrical connector and combinations thereof, and more particularly an electrical connector having a movable member and combinations thereof.

A conventional technology such as the transmission line device connector combination patent of the Republic of China Announcement No. M348367 (the foreign patent case is the Chinese Patent No. CN201266719 and the US Patent No. US7815459), the transmission line device connector combination The utility model comprises an insulating body, a plurality of conductive terminals received in the insulating body, a partition separating the conductive terminals, a bracket fixed on the insulating body, a transmission line device electrically connected to the conductive terminals, and a fastening device attached to the insulating body. a cover body, wherein the cover body is opposite to the base of the insulative housing, the abutting portion and the cover body are located on different sides of the base portion, and the cover body and the insulative housing enclose a receiving space, the conductive terminal and the transmission line device Electrically connected in the space. However, the conventional transmission line device connector combination cannot remove the transmission line device. When the transmission line device is worn out or is poorly processed, the new transmission line device cannot be replaced, and the transmission line device connector combination is scrapped. Therefore, conventionally, The transmission line device connector combination still has the need for an improved structure.

Therefore, the main purpose of the present invention is to provide an electrical connector and a combination thereof, which have an insulator, a circuit board and a fixing base, and the insulator is provided with a plurality of second terminals, a fixing seat A plurality of first terminals are inserted, and the plurality of second terminals and the plurality of first terminals are electrically connected by the circuit board; wherein the fixed seat is provided with a movable member, and when the movable member is opened, the fixed seat can be inserted into the flexible flat The cable is arranged, and when the movable member is in a closed state, the movable member can press the plurality of conductors of the flexible flat cable to electrically connect with the plurality of first terminals.

The present invention provides an electrical connector assembly including: a plurality of first terminals; a fixing base having a rectangular hole, the fixing seat is embedded with the plurality of first terminals, and the first contact portion of the plurality of first terminals extends into the a rectangular hole of the fixing base, and the second contact portion of the end of the plurality of first terminals respectively contacts the plurality of second conductive portions of the circuit board; and a movable member having a clamping member, the clamping member The device can be disposed in a rectangular hole of the fixing base; a transmission line device has an insulating layer, the insulating layer is covered with a plurality of conductors, and the front end of the transmission line device exposes a plurality of conductors; wherein the front end of the transmission line device can be worn Provided in the rectangular hole of the fixing seat, the clamping member of the movable member can press the front end of the transmission line device, so that the plurality of conductors of the transmission line device contact the first contact portion of the plurality of first terminals; wherein the transmission line When the road device is inserted into the rectangular hole of the fixing seat in the horizontal direction, the clamping member of the movable member is also inserted into the rectangular hole of the fixing seat in the horizontal direction, so that the transmission line is mortgaged in the vertical direction by the clamping member. The front-end device, so that a plurality of conductor line of the transport means in contact with the first contact portion of the plurality of first terminals.

According to an embodiment of the present invention, the electrical connector assembly further includes an insulator having a plurality of slots and a plurality of terminal holes; a circuit board having a plurality of first conductive portions and a plurality of second conductive portions, each of the plurality of first conductive portions The plurality of second conductive terminals are electrically connected to the plurality of second conductive portions; the plurality of second terminals are embedded in the plurality of slots of the insulator, and the first contact portion of the plurality of second terminals extends into the plurality of terminal holes of the insulator, and the plurality of terminals The second contact portions of the two terminal tails respectively contact the plurality of first conductive portions of the circuit board.

According to an embodiment of the present invention, the electrical connector assembly further includes a metal casing, wherein the insulator, the circuit board, the plurality of second terminals, the plurality of first terminals, the fixing seat and the movable member are accommodated Among the metal casings.

According to an embodiment of the present invention, the circuit board further includes a plurality of third conductive portions, and the plurality of third conductive portions and the plurality of first conductive portions are located on different sides of the circuit board.

According to an embodiment of the present invention, the metal casing has a folded structure that contacts the plurality of third conductive regions of the circuit board to ground the circuit board.

According to an embodiment of the present invention, the insulator has different thicknesses on both sides thereof as a foolproof device for ensuring that the user inserts the transmission line device into the fixing portion in the correct direction.

According to the embodiment of the present invention, the fixing base further comprises two guiding grooves, and the movable member comprises two clamping arms, and the two holding arms of the movable member can be disposed through the two guiding grooves of the fixing seat.

According to an embodiment of the present invention, the electrical connector assembly is used to connect to a hard disk.

According to an embodiment of the present invention, the hard disk is a hard disk or a CD player.

According to an embodiment of the present invention, the metal casing has a snap member having a snap member, and the snap member of the outer casing and the snap member of the hard disk are engaged with each other to fix the metal casing. The relative position to the hard disk.

According to an embodiment of the present invention, the transmission line device is a flexible flat cable or a flexible printed circuit board.

The present invention further provides an electrical connector, comprising: a plurality of first terminals, each of the first terminals includes a first contact portion and a second contact portion; a fixed seat having a rectangular hole, the fixed seat is embedded with the a plurality of first terminals, the first contact portion of the plurality of first terminals extending into the solid a rectangular hole fixedly seated, wherein the second contact portion of the plurality of first terminals respectively contacts the plurality of second conductive portions of the circuit board; and a movable member having a clamping member, the clamping member Piece can be worn in the rectangular hole of the fixing seat

The present invention further provides an electrical connector, comprising: an insulator having a plurality of slots and a plurality of terminal holes; a circuit board having a plurality of first conductive portions and a plurality of second conductive portions, the circuit board being fixed to the insulator, and the board The plurality of first conductive portions are electrically connected to the plurality of second conductive portions; the plurality of first terminals are embedded in the plurality of slots of the insulator, and the first contact portion of the plurality of first terminals extends into the plurality of terminals of the insulator a second contact portion of the plurality of first terminal tails respectively contacting the plurality of first conductive portions of the circuit board; a plurality of second terminals, each of the second terminals including a first contact portion and a second portion a contact portion; and a fixing base having a rectangular hole, the fixing seat is embedded with the plurality of second terminals, the first contact portion of the plurality of second terminals extends into the rectangular hole of the fixing seat, and the plurality of second terminals The second contact portion is in contact with the plurality of second conductive portions of the circuit board.

Compared with the prior art, the electrical connector of the present invention and the combination thereof have a movable member, and the movable device can be easily inserted and removed by the opening or closing of the movable member, so that the conventional device can be prevented from being smoothly completed. Remove the problem with the transmission line device.

10‧‧‧Electrical connector

100‧‧‧Electrical connector assembly

111‧‧‧Slots

110‧‧‧Insulator

112‧‧‧Terminal hole

120‧‧‧second terminal

130‧‧‧ boards

131‧‧‧First Conductive Department

132‧‧‧Second Conductive Department

140‧‧‧First terminal

121‧‧‧Fixed Department

150‧‧‧ fixed seat

123‧‧‧First contact of the second terminal

124‧‧‧Second contact of the second terminal

160‧‧‧moving parts

141‧‧‧ first contact of the first terminal

142‧‧‧Second contact of the first terminal

152‧‧‧ guiding slot

151‧‧‧Rectangular hole

161‧‧‧Clamping parts

162‧‧‧Clamping arm

163‧‧‧ buckle

170‧‧‧Transmission line device

171‧‧‧Insulation

172‧‧‧Conductor

180‧‧‧Metal casing

181‧‧‧Folding structure

182‧‧‧Card fasteners

900‧‧‧ Hard disk

910‧‧‧Connected circuit board

911‧‧‧Electrical terminal

920‧‧‧Cards

Figure 1 is a schematic diagram of the combination of the inventive electrical connectors.

2 is a top plan view of the movable member of the creative electrical connector assembly in an open state.

Figure 3 is a top plan view of the movable member of the assembled electrical connector in a closed state.

Figure 4 is an exploded view of the assembled electrical connector assembly.

Figure 5 is a cross-sectional view taken along line A-A of Figure 2;

Figure 6 is a perspective cross-sectional view taken along line A-A of Figure 2;

Figure 7 is a cross-sectional view taken along line B-B of Figure 3.

Figure 8 is a perspective cross-sectional view taken along line B-B of Figure 3.

9 and 10 show schematic views of the metal casing and internal components.

11 and 12 are schematic views showing the interconnection of the electrical connector assembly and the hard disk drive/disc drive.

In order to further understand the characteristics, technical means and specific functions and purposes of the present invention, more specific embodiments are listed, followed by a detailed description of the drawings and the drawings.

The following description of the various embodiments is provided to illustrate the specific embodiments in which the present invention may be practiced. Directional terms mentioned in this creation, such as "upper", "lower", "before", "after", "left", "right", "top", "bottom", "level", "vertical", etc. , just refer to the direction of the additional schema. Therefore, the directional terminology used is used to describe and understand the creation, and is not intended to limit the creation.

Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a schematic diagram of the electrical connector assembly 100 of the present invention. 2 is a plan view of the movable member 160 of the electrical connector assembly 100 in an open state, and FIG. 3 is a plan view of the movable member 160 of the electrical connector assembly 100 in a closed state. The present electrical connector assembly 100 includes an electrical connector 10 and a transmission line device 170 that can be inserted into the electrical connector 10. The transmission line device 170 may be a flexible flat cable (Flex Flat Cable or Flexible Flat Cable, FFC for short) or a flexible print circuit board. When the movable member 160 is in an open state, the electrical connector 10 The transmission line device 170 is pluggable, and when the movable member 160 is in the closed state, the movable member 160 can press the fixed transmission line device 170.

Please refer to Figure 4-8. 4 is an exploded view of the inventive electrical connector assembly 100. Figure 5 is a cross-sectional view taken along line A-A of Figure 2, and Figure 6 is a cross-sectional view taken along line A-A of Figure 2. Figure 7 is a cross-sectional view taken along line B-B of Figure 3, and Figure 8 is a cross-sectional view taken along line B-B of Figure 3. The electrical connector 10 includes a metal casing 180, an insulator 110, a plurality of second terminals 120, a printed circuit board (PCB) 130, a plurality of first terminals 140, a fixing base 150, and a movable member 160. The insulator 110, the plurality of second terminals 120, the printed circuit board (PCB) 130, the plurality of first terminals 140, the fixing base 150, and the movable member 160 are all accommodated in the metal casing 180.

The insulator 110 has a plurality of slots 111 and a plurality of terminal holes 112. The circuit board 130 has a plurality of first conductive portions 131 and a plurality of second conductive portions 132. The circuit board 130 is fixed to the insulator 110, and the plurality of first conductive portions 131 are electrically connected. The plurality of second terminals 120 are connected to the plurality of slots 111 of the insulator 110 (for example, the fixing portion 121 of the second terminal 120 has a hook to be fixed in the slot 111), and the second portion The first contact portion 123 of the terminal 120 extends into the plurality of terminal holes 112 of the insulator 110 , and the second contact portions 124 at the end of the plurality of second terminals 120 respectively contact the plurality of first conductive portions 131 of the circuit board 130 . The fixing base 150 has a rectangular hole 151 and two guiding slots 152. The fixing base 150 is embedded with a plurality of first terminals 140. The first terminal 140 is a conductive terminal, and the first contact portion 141 is a barb, and the second contact portion 142 at the tail end contacts the plurality of second conductive portions 132 of the circuit board 130. The movable member 160 has a clamping member 161 and two clamping arms 162. The clamping member 161 can be disposed in the rectangular hole 151 of the fixing base 150, and the two clamping arms 162 of the movable member 161 can be disposed on the two fixing brackets 150. Guide groove 152. The movable member 160 is separated by two clips The holding arm 162 is clamped to the fixed seat 150 and can be moved to an open state or a closed state. The transmission line device 170 has an insulating layer 171, and the insulating layer 171 is covered with a plurality of conductors 172, and the front end of the transmission line device 170 exposes the plurality of conductors 172. The front end of the transmission line device 170 can be passed through the rectangular hole 151 of the fixing base 150. For example, when the movable member 160 is in the open state (that is, the state shown in FIG. 5), the front end of the transmission line device 170 can be horizontally (that is, the direction C shown in FIG. 5, that is, parallel to the transmission line device. The extending direction of the plurality of conductors 172 is inserted into the rectangular hole 151 of the fixing base 150, and the movable member 160 is also inserted in the horizontal direction so that the holding member 161 of the movable member 160 protrudes into the rectangular hole 151 of the fixing base 150. The transmission line device 170 located between the movable member 160 and the first terminal 140 causes the clamping member 161 of the movable member 160 to be in a vertical direction (perpendicular to the direction C shown in FIG. 5) due to the force generated by the pressing of the movable member 160. The plurality of conductors 172 of the transmission line device 170 are brought into contact with the first contact portion 141 of the plurality of first terminals 140.

By opening or closing the movable member 160, the electrical connector assembly 100 can be inserted into the transmission line device 170 at any time as needed, or the transmission line device 170 can be removed. For example, the electrical connector assembly 100 can be inserted with the transmission line device 170 and hard. The disc or CD player (not shown) is sold together. When the hard disk or the optical disk drive needs to be replaced or repaired, the electrical connector assembly 100 can easily remove the transmission line device 170. In addition, when the transmission line device 170 is worn out, the electrical connector assembly 100 can also remove the transmission line device 170. The new transmission line device 170 is easily replaced.

Please continue to refer to Figure 5 to Figure 8. When the movable member 160 is moved to the open state (as shown in FIGS. 5 and 6), the clamping member 161 of the movable member 160 is separated from the rectangular hole 151 of the fixing base 150, and then the transmission line device 170 can be horizontally oriented. The direction C) shown in Fig. 5 is inserted into the holder 150. At this time, the front end of the transmission line device 170 is passed through the rectangular shape of the fixing base 150. Hole 151. Then, the movable member 160 is moved to the closed state (inserted to the fixing seat 150) in the horizontal direction, and the holding member 161 of the movable member 160 will also enter the rectangular hole 151 of the fixing seat 150, thereby causing the holding member 161. The front end of the transmission line device 170 is pressed, and the plurality of conductors 171 of the transmission line device 170 are brought into contact with the contact portions 141 of the plurality of first terminals 140 (as shown in FIGS. 7 and 8). Moreover, when the movable member 160 is moved from the direction D shown in FIG. 7 to the open state, the holding member 161 of the movable member 160 will be separated from the front end of the transmission line device 170, and then the front end of the transmission line device 170 can be fixed. The rectangular aperture 151 of the seat 150 is removed.

In order to strengthen the clamping force of the movable member 160 to the fixing base 150, the two clamping arms 162 of the movable member 160 may further have a buckle 163. When the two clamping arms 162 of the movable member 160 pass through the two guiding slots of the fixing base 150 At 152 hours, the two clamping arms 162 fasten the fixing seat 150 by the fasteners 163 to fix the mutual position therebetween.

Please refer to FIG. 9 to FIG. 10 . FIG. 9 to FIG. 10 are schematic diagrams showing the metal casing 180 and internal components. In order for the board 130 to have better security, the board 130 must be grounded. As shown in FIG. 9, the circuit board 130 further includes a plurality of third conductive regions 133 on the back side thereof, and the metal housing 180 correspondingly has a plurality of folded structures 181. When the internal components of the electrical connector assembly 100 are accommodated in the metal When the outer casing 180 is inside (as shown in FIG. 10), the folded structure 181 of the metal casing 180 contacts the plurality of third conductive portions 133 of the circuit board 130 to ground the circuit board 130.

Moreover, in a preferred embodiment (as shown in FIG. 10), the thickness T1 of the two sides of the insulator 110 is different from the thickness T2. Such a design is used as a foolproof device to ensure that the user can transmit the transmission line in the correct direction. The device 170 is inserted into the fixing portion 150.

The electrical connector assembly 100 is for sale with a hard disk. In other words, the electrical connector assembly 100 is used as a relay device for the hard disk and transmission line device 170. Referring to FIG. 11 to FIG. 12, FIG. 11 to FIG. 12 illustrate the electrical connector assembly 100 and the hard disk 900. A schematic diagram of interconnections. 11 is a schematic view from the top to the bottom, and FIG. 12 is a schematic view from the bottom up. The hard disk 900 includes a connection circuit board 910. The connection circuit board 910 can be inserted into the terminal hole 112 of the insulator 110. The conductive terminal 911 connecting the circuit board 910 can be connected to the first contact portion 123 of the plurality of second terminals 120. contact. In this way, the hard disk 900 can transmit the signal through the connection circuit board 910, the second terminal 120, the circuit board 130, the first terminal 140, and the transmission line device 170.

In a preferred embodiment, as shown in FIG. 9 to FIG. 10, the hard disk 900 has a latching member 920, and the metal housing 180 correspondingly includes a latching member 182. The latching member 920 can be coupled with the latching member. The pieces 182 are engaged with each other to fix the relative position of the metal casing 180 (the electrical connector assembly 100) to the hard disk 900.

Compared with the prior art, the electrical connector assembly of the present invention has a movable member, and the movable device can be easily inserted and removed by the opening or closing of the movable member, so that the conventional transmission cannot be smoothly removed. The problem with transmission line devices.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application.

100‧‧‧Electrical connector assembly

111‧‧‧Slots

110‧‧‧Insulator

120‧‧‧second terminal

123‧‧‧First contact of the second terminal

124‧‧‧Second contact of the second terminal

130‧‧‧ boards

131‧‧‧First Conductive Department

132‧‧‧Second Conductive Department

140‧‧‧First terminal

121‧‧‧Fixed Department

150‧‧‧ fixed seat

152‧‧‧ guiding slot

160‧‧‧moving parts

161‧‧‧Clamping parts

162‧‧‧Clamping arm

163‧‧‧ buckle

170‧‧‧Transmission line device

171‧‧‧Insulation

172‧‧‧Conductor

180‧‧‧Metal casing

Claims (25)

An electrical connector assembly includes: a plurality of first terminals, each of the first terminals includes a first contact portion and a second contact portion; and a fixed seat having a rectangular hole, the fixed seat is embedded with the first plurality a first contact portion of the plurality of first terminals protrudes into a rectangular hole of the fixing base, and the second contact portion of the plurality of first terminals respectively contacts the plurality of second conductive portions of the circuit board; The movable member has a clamping member, the clamping member can be disposed in a rectangular hole of the fixing base; a transmission line device has an insulating layer, the insulating layer is covered with a plurality of conductors, and the transmission line device The front end exposes the plurality of conductors, wherein the front end of the transmission line device passes through a rectangular hole of the fixing base, and the clamping member of the movable member presses the front end of the transmission line device, so that the plurality of conductors of the transmission line device are in contact with the a first contact portion of the first terminal; wherein when the transmission line device is inserted into the rectangular hole of the fixing seat in a horizontal direction, the clamping member of the movable member is also inserted into the rectangular hole of the fixing seat in a horizontal direction, Of the clamping member in a vertical direction against the pressure of the front end of the transmission line means, so that a plurality of conductor line of the transport means in contact with the first contact portion of the terminal in the first plurality. The electrical connector assembly of claim 1, further comprising: an insulator having a plurality of slots and a plurality of terminal holes; a circuit board having a plurality of first conductive portions and a plurality of second conductive portions, the plurality The first conductive portions are electrically connected to the plurality of second conductive portions; the plurality of second terminals are embedded in the plurality of slots of the insulator, and the first contact portions of the plurality of second terminals extend into the plurality of terminal holes of the insulator And the second contact portion of the end of the plurality of second terminals Do not touch the plurality of first conductive portions of the circuit board. The electrical connector assembly of claim 2, further comprising a metal casing, wherein the insulator, the circuit board, the plurality of second terminals, the plurality of first terminals, the fixing seat and the movable member It is housed in the metal casing. The electrical connector assembly of claim 3, wherein the circuit board further comprises a plurality of third conductive portions, the plurality of third conductive portions and the plurality of first conductive portions being located on different sides of the circuit board. The electrical connector assembly of claim 4, wherein the metal housing has a folded structure that contacts the plurality of third conductive regions of the circuit board to ground the circuit board. The electrical connector assembly of claim 2, wherein the insulator has different thicknesses on both sides thereof as a foolproof device for ensuring that the user inserts the transmission line device into the fixed portion in the correct direction. The electrical connector assembly of claim 1, wherein the fixing base further comprises two guiding slots, the movable member comprises two clamping arms, and the two holding arms of the movable member are disposed on the two fixing brackets. Guide groove. The electrical connector assembly of claim 2 is for use in connection with a hard disk. The electrical connector assembly of claim 8, wherein the metal housing has a latching member, the hard disk having a latching member, the latching member of the outer casing and the engaging member of the hard disk Engaging each other to fix the relative position of the metal casing to the hard disk. The electrical connector assembly of claim 1, wherein the transmission line device is a flexible flat cable or a flexible printed circuit board. An electrical connector includes: a plurality of first terminals, each of the first terminals includes a first contact portion and a second contact portion; a fixed seat having a rectangular hole, the fixed seat is embedded with the plurality of first terminals a first contact portion of the plurality of first terminals extends into the rectangular hole of the fixing base, and the second contact portion of the plurality of first terminals respectively contacts the plurality of second conductive portions of the circuit board; and an activity And the movable member has a clamping member, and the clamping member can pass through the rectangular hole of the fixing seat. The electrical connector of claim 11, further comprising: an insulator having a plurality of slots and a plurality of terminal holes; a circuit board having a plurality of first conductive portions and a plurality of second conductive portions, the plurality Each of the plurality of conductive portions is electrically connected to the plurality of second conductive portions; the plurality of second terminals are embedded in the plurality of slots of the insulator, and the first contact portion of the plurality of second terminals extends into the plurality of terminal holes of the insulator And the second contact portion of the end of the plurality of second terminals is in contact with the plurality of first conductive portions of the circuit board. The electrical connector of claim 12, further comprising a metal casing, wherein the insulator, the circuit board, the plurality of second terminals, the plurality of first terminals, the fixing seat and the movable member are Placed in the metal casing. The electrical connector of claim 13, wherein the metal housing has a latching member for snapping with a latching member of a hard disk to fix the metal housing to the hard disk. position. The electrical connector of claim 13, wherein the circuit board further comprises a plurality of third conductive portions, the plurality of third conductive portions and the plurality of first conductive portions being located on different sides of the circuit board. The electrical connector of claim 15, wherein the metal casing has a folded structure that contacts the plurality of third conductive regions of the circuit board to ground the circuit board. The electrical connector of claim 12, wherein the insulator has different thicknesses on both sides thereof as a foolproof device for ensuring that the user inserts the transmission line device into the fixed portion in the correct direction. The electrical connector of claim 11, wherein the fixing base further comprises two guiding slots, the movable member comprises two clamping arms, and the two holding arms of the movable member are disposed through the two guiding portions of the fixing base Groove. An electrical connector comprising: an insulator having a plurality of slots and a plurality of terminal holes; a circuit board having a plurality of first conductive portions and a plurality of second conductive portions, the circuit board being fixed to the insulator, and the plurality of first conductive Each of the plurality of first conductive portions is electrically connected to the plurality of second conductive portions; the plurality of first terminals are embedded in the plurality of slots of the insulator, and the first contact portion of the plurality of first terminals extends into the plurality of terminal holes of the insulator, and the The second contact portions of the plurality of first terminal tails respectively contact the plurality of first conductive portions of the circuit board; the plurality of second terminals, each of the second terminals includes a first contact portion and a second contact portion; a fixing base having a rectangular hole, the fixing seat is embedded with the plurality of second terminals, the first contact portion of the plurality of second terminals extends into the rectangular hole of the fixing seat, and the second of the plurality of second terminals The contacts respectively contact the plurality of second conductive portions of the circuit board. The electrical connector of claim 19, further comprising a metal casing, wherein the insulator, the circuit board, the plurality of second terminals, the plurality of first terminals, the fixing seat and the movable member are Placed in the metal casing. The electrical connector of claim 20, wherein the metal casing has a latching member for snapping with a latching member of a hard disk to fix the metal casing opposite to the hard disk. position. The electrical connector of claim 20, wherein the metal casing has a folded structure that contacts the plurality of third conductive regions of the circuit board to ground the circuit board. The electrical connector of claim 19, wherein the circuit board further comprises a plurality of third conductive portions, the plurality of third conductive portions and the plurality of first conductive portions being located on different sides of the circuit board. The electrical connector of claim 19, wherein the insulator has different thicknesses on both sides thereof as a foolproof device for ensuring that the user inserts the transmission line device into the fixed portion in the correct direction. The electrical connector of claim 19, wherein the fixing base further comprises two guiding grooves, the movable member comprises two clamping arms, and the two holding arms of the movable member are disposed through the two guiding portions of the fixing seat Groove.