IP Library Granted Patent US 10,495,254
Granted Patent B2
US 10,495,254 · App. 15/730,166 · Granted Dec 3, 2019

Latch with magnetically-assisted operation for information handling systems (IHSs)

Inventors: Christopher A. Torres (San Marcos, TX); Timothy M. Radloff (Austin, TX); Jason Scott Morrison (Cedar Park, TX); Weijong Sheu (Austin, TX)
Assignee: Dell Products, L.P.
F16M13/005F16M11/10G06F1/166G06F1/1616G06F1/1679F16B2001/0035
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Quick Facts
Patent No.
US 10,495,254
App. No.
15/730,166
Granted
Dec 3, 2019
Kind
B2
Abstract

A latch with magnetically-assisted operation is described. In some embodiments, a latch may include: a first magnetic device fixedly coupled to a first portion of an Information Handling System (IHS); a second magnetic device coupled to a second movable portion of the IHS; and a carrier, comprising: a compression bracket fixedly coupled to the first portion of the IHS, the compression bracket having a slot configured to accommodate the second magnetic device, at least one guidepost configured to receive a return spring, and at least one stopping pin; and a actuator bracket movably coupled to compression bracket, the actuator bracket having a button configured to translate the second magnetic device with respect to the first magnetic device, at least one orifice configured to engage with the at least one guidepost, and at least one detent configured to engage with the at least one stopping pin.

Claims (28)

1. A latch, comprising:

a first magnetic device fixedly coupled to a first portion of an Information Handling System (IHS);

a second magnetic device coupled to a movable second portion of the IHS; and

a carrier, comprising:

a compression bracket fixedly coupled to the first portion of the IHS, the compression bracket having a surface configured to accommodate the second magnetic device, at least one guidepost configured to receive a return spring, and at least one stopping pin; and

an actuator bracket coupled to the compression bracket, the actuator bracket having a button configured to translate the second magnetic device with respect to the first magnetic device, at least one orifice configured to engage with the at least one guidepost, and at least one detent configured to engage with the at least one stopping pin.

2. The latch of claim 1 , wherein the first magnetic device and the second magnetic device have a same polarity orientation.

3. The latch of claim 1 , wherein the first magnetic device translates in response to operation of the button.

4. The latch of claim 3 , wherein when the actuator bracket is in a first position, the first magnetic device and the second magnetic device interact under a predominantly attractive force.

5. The latch of claim 4 , wherein when the actuator bracket is in the first position, a first portion of the first magnetic device having a first polarity is aligned with a first portion of the second magnetic device having a second polarity opposite the first polarity.

6. The latch of claim 4 , wherein when the actuator bracket is in a second position, the first magnetic device and the second magnetic device interact under a predominantly repulsive force.

7. The latch of claim 6 , wherein when the actuator bracket is in the second position: (i) a first portion of the first magnetic device having a first polarity is aligned with a second portion of the second magnetic device having a second polarity opposite the first polarity, and (ii) a second portion of the first magnetic device having the second polarity is aligned with a first portion of the second magnetic device having the first polarity.

8. The latch of claim 3 , wherein the second portion of the IHS includes a kickstand.

9. The latch of claim 8 , wherein the actuator bracket is operated in response to physical contact of the button with a surface perpendicular to the first portion.

10. The latch of claim 3 , wherein the second portion of the IHS is coupled to the first portion via a spring-loaded hinge.

11. The latch of claim 3 , wherein the first portion of the IHS includes one or more clamping magnets, and wherein the second portion of the IHS includes a corresponding set of one or more clamping magnets.

12. The latch of claim 11 , wherein when the first magnetic device is in a first position, forces applied to the second portion by the spring-loaded hinge are smaller than a sum of: (i) attractive forces between the first and second magnetic devices, and (ii) attractive forces between the clamping magnets, wherein when the first magnetic device is in a second position, the attractive forces between the clamping magnets are equal to a sum of: (i) the forces applied to the second portion by the spring-loaded hinge, and (ii) repulsive forces between the first and second magnetic devices, and wherein when the first magnetic device is in a third position, the attractive forces between the clamping magnets is smaller than a sum of: (i) repulsive forces between the first and second magnetic devices, and (ii) the forces applied to the second portion by the spring-loaded hinge.

13. The latch of claim 1 , wherein the second distance is zero.

14. The latch of claim 1 , wherein at least one of the first or second magnetic devices includes an electromagnetic coil.

15. A carrier, comprising:

an actuator bracket having a button configured to translate a second magnet movably coupled to an Information Handling System (IHS) with respect to a first magnetic device fixedly coupled to a kickstand, wherein the actuator bracket further comprises: at an orifice configured to engage with a guidepost, and a detent configured to engage with a stopping pin; and

a compression bracket fixedly coupled to the IHS, wherein the compression bracket further comprises: a surface configured to accommodate the second magnet, the guidepost, and the stopping pin, wherein the guidepost is configured to receive a return spring.

16. The carrier of claim 15 , wherein the first magnet and the second magnet have a same polarity orientation, wherein the first magnet translates in response to operation of the button.

17. The carrier of claim 16 , wherein when the actuator bracket is in a first position, a first portion of the first magnet having a first polarity is aligned with a first portion of the second magnet having a second polarity opposite the first polarity, and the first magnet and the second magnet interact under a predominantly attractive force.

18. The carrier of claim 16 , wherein when the actuator is in a second position: (i) a first portion of the first magnet having a first polarity is aligned with a second portion of the second magnet having a second polarity opposite the first polarity, (ii) a second portion of the first magnet having the second polarity is aligned with a first portion of the second magnet having the first polarity, and (iii) the first magnet and the second magnet interact under a predominantly repulsive force.

19. A method, comprising:

operating an actuator of a carrier coupled to a chassis of an Information Handling System (IHS), wherein the carrier holds a first magnet that is movable relative to the chassis by operation of the actuator; and

supporting at least a portion of the IHS using a kickstand coupled to the chassis, wherein the kickstand holds a second magnet fixed relative to the kickstand, wherein the chassis includes one or more clamping magnets and the kickstand includes a corresponding set of one or more clamping magnets, wherein when the first magnet is in a first position, forces applied to the kickstand by a spring-loaded hinge coupling the kickstand to the chassis are smaller than a sum of: (i) attractive forces between the first and second magnets, and (ii) attractive forces between the clamping magnets, wherein when the first magnet is in a second position, the attractive forces between the clamping magnets are equal to a sum of: (i) the forces applied to the kickstand by the spring-loaded hinge, and (ii) repulsive forces between the first and second magnets, and wherein when the first magnet is in a third position, the attractive forces between the clamping magnets is smaller than a sum of: (i) repulsive forces between the first and second magnets, and (ii) the forces applied to the kickstand by the spring-loaded hinge.

Assignments (8)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (044535/0109) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO WYSE TECHNOLOGY L.L.C.)
Reel/Frame 060753/0414 →
RELEASE OF SECURITY INTEREST AT REEL 044535 FRAME 0001 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058298/0475 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
PATENT SECURITY AGREEMENT (CREDIT) Recorded Nov 29, 2017
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 044535/0001 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Nov 29, 2017
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 044535/0109 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2017
From: TORRES, CHRISTOPHER A.; RADLOFF, TIMOTHY M.; MORRISON, JASON SCOTT; SHEU, WEIJONG
To: DELL PRODUCTS, LP.
Reel/Frame 043839/0791 →
Continuity (1)
Related Publication 20190107245A1 · Apr 11, 2019
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