# US 2010/0165591 A1 · Electronic device enclosure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0165591 A1 - Document ID: US20100165591A1 - Status: Published application - Kind: A1 - Application number: 12/482,906 - Filed: 2009-06-11 - Published: 2010-07-01 - Earliest claimed: 2008-12-26 - Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.; Hon Hai Precision Industry Co., Ltd. - Inventors: CHIN-WEN YEH; ZHI-JIAN PENG; HAI-SHAN SUN - Web page: https://patentgrep.com/patent/US20100165591A1 ## CPC - H05K 7/1429: {for circuits carrying a CPU and adapted to receive expansion cards} - H05K 7/1402: {for securing or extracting printed circuit boards} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An enclosure for an electronic device includes a chassis and a cover. The chassis includes a bottom wall and an opening. A circuit board is mounted on the bottom wall. The cover is mounted on the chassis to cover the opening of the chassis. A fixing apparatus is movably mounted on the cover. The fixing apparatus contacts and biases the expansion card toward the circuit board. ## Claims ### Claim 1 An enclosure for an electronic device, comprising: a chassis comprising a bottom wall, the chassis defining an opening, a circuit board mounted on the bottom wall; and a cover mounted on the chassis for covering the opening thereof and a fixing apparatus movably mounted on the cover, the fixing apparatus capable of contacting and biasing an expansion card toward the circuit board. ### Claim 2 (depends on 1) The enclosure of claim 1, wherein the fixing apparatus comprises a contact arm comprising a first end pivotally mounted on the cover, and a second end configured for biasing. ### Claim 3 (depends on 2) The enclosure of claim 2, wherein anti-slip texturing is formed on the second end of the contact arm. ### Claim 4 (depends on 2) The enclosure of claim 2, wherein the fixing apparatus comprises a torsional spring compressed between the contact arm and the cover biasing the second end away from the cover. ### Claim 5 (depends on 4) The enclosure of claim 4, wherein the torsional spring comprises a coil and a pair of ends, a post is formed on the first end of the contact arm, the coil is wrapped around the post, one end of the spring is in contact with the contact arm, and the other end of the spring is in contact with the cover. ### Claim 6 (depends on 2) The enclosure of claim 2, wherein the fixing apparatus comprises a receiving base mounted on the cover; the receiving base comprises a pair of side panels, each having pivot holes; the first end of the contact arm defines a fixing hole; a pivot shaft is received in the fixing hole, and received in the pair of pivot holes, wherein the contact arm is capable of rotating. ### Claim 7 (depends on 6) The enclosure of claim 6, wherein each side panel forms a clasp; the fixing apparatus comprises a securing base fixed on the cover, the securing base comprises a pair of first restricting pieces, each defining a first retaining hole; the receiving base is restricted between the pair of first restricting pieces, and the clasps of the receiving base are retained in the first retaining holes of the securing base. ### Claim 8 (depends on 7) The enclosure of claim 7, wherein the receiving base comprises a connection piece connected between the pair of side panels, a step portion is formed on the connection piece; and a second retaining hole is defined in the securing base configured for engaging the step portion. ### Claim 9 (depends on 6) The enclosure of claim 6, wherein the pivot shaft is interferentially received in the fixing hole, and pivotally received in the pair of pivot holes. ### Claim 10 (depends on 6) The enclosure of claim 6, wherein the pivot shaft is firmly secured in the pivot holes, and movably received in the fixing hole. ### Claim 11 An enclosure for an electronic device, comprising: a chassis comprising a bottom wall at a bottom side thereof and a cover mounted on a top side thereof facing the bottom wall, a circuit board mounted on the bottom wall; and a fixing apparatus sandwiched between the cover and expansion card capable of contacting and biasing an expansion card toward the circuit board. ### Claim 12 (depends on 11) The enclosure of claim 11, wherein the fixing apparatus comprises a contact arm comprising a first end pivotally mounted on the cover, and a second end configured for biasing. ### Claim 13 (depends on 12) The enclosure of claim 12, wherein anti-slip texturing is formed on the second end of the contact arm. ### Claim 14 (depends on 12) The enclosure of claim 12, wherein the fixing apparatus comprises a torsional spring compressed between the contact arm and the cover biasing the second end away from the cover. ### Claim 15 (depends on 14) The enclosure of claim 14, wherein the torsional spring comprises a coil and a pair of ends, a post is formed on the first end of the contact arm, the coil is wrapped around the post, one end of the spring is in contact with the contact arm, and the other end of the spring is in contact with the cover. ### Claim 16 (depends on 15) The enclosure of claim 15, wherein the fixing apparatus comprises a receiving base mounted on the cover, the receiving base comprises a pair of side panels defining a pair of pivot holes; the first end of the contact arm defines a fixing hole; a pivot shaft is received into the fixing hole and received in the pair of pivot holes. ### Claim 17 (depends on 16) The enclosure of claim 16, wherein each side panel forms a clasp; the fixing apparatus comprises a securing base fixed on the cover, the securing base comprises a pair of first restricting pieces, each first restricting piece defines a first retaining hole; and the receiving base is restricted between the pair of first restricting pieces, and the clasps of the receiving base are retained in the first retaining holes of the securing base. ### Claim 18 (depends on 17) The enclosure of claim 17, wherein the receiving base comprises a connection piece connected between the pair of side panels, a step portion is formed on the connection piece; and a second retaining hole is defined in the securing base configured for engaging the step portion. ### Claim 19 (depends on 16) The enclosure of claim 16, wherein the pivot shaft is interferentially received in the fixing hole, and pivotally received in the pair of pivot holes. ### Claim 20 (depends on 16) The enclosure of claim 16, wherein the pivot shaft is firmly secured in the pivot holes, and movably received in the fixing hole.