if it is a teardown, remove the confidential note, delete ... · google home december 2016 by jon...

© 2016 www.pemnet.com 1

Google Home

December 2016

by Jon Brunk

PennEngineering®

Title Slide – Do Not Remove Enter the Name and Model of the object being torn down.

If it is CSI, leave the Confidential note.

If it is a teardown, remove the confidential note, delete the CSI logo.

http://www.pemnet.com/


Google Home

Introductory Slide – Do Not Remove Enter the name of the object being torn down

and a picture of the assembled product.



Details & Findings

Pictures and Description of the

Google Home and our

disassembly process.

Section Heading Slide – Do Not Remove Enter the Name of the object being torn down.



Google Home

Top View Bottom View Back View

Detail Slide – Copy and use for details. Title various slides to correspond with different

portions of the object being torn down (e.g.

Case, charging station, etc…)



Google Home - Base

• Cloth and plastic base

held by two magnets, one

north and one south for

alignment






Google Home - Base

• Rubber base attached

by double sided tape






Top Case and Main Body

• Disassembling white upper

section from main body

• Upper section held by 4 screws

• 4x screws into white plastic

bosses vertically






Top Case and Main Body

• Flex cable connects

two PC boards






Back Panel

• Removed large rubber

o-ring

• Back plastic cover

attached by 4 screws

• All thread into plastic

bosses






Back Panel

• Back of unit with cover

removed.

• Exposes full PCB, wiring

for speaker and flex cable

to bottom piece






Back Panel

• Molded plastic

cover

• Contains:

• Transparent

sections for

LED

• Arm to push on

mute button

• Molded

alignment

features






Bottom Piece

• Plastic molding has

detents for aligning

magnets

• Held by 4 short screws

• The 2 magnets align with

those in the base






Bottom Piece

• This piece attaches to the PCB

• Bottom is exposed through the base to the user






Bottom Piece

• Possibly

grounding,

charging or

proximity

sensor.






Side Panels






Side Panels

• Provides surface for

large O-ring to sit

• Mostly a cosmetic

piece surrounding unit

• Each side held by 2x

short screws






PC Board

• PC Board attached to the

body with 5 screws






PC Board

• Front and back

view of PC

Board

• No components

are attached

mechanically






Main Body

• The body that all these

pieces have attached to

is a two section body

• Back of this piece has 9

molded bosses and 2

alignment points






Main Body

• Two halves of the body

attached by 6 screws

• All thread into bosses

• Sit in deep recesses in

the molded plastic






Main Body

• Splitting open the

body reveals a

single speaker

inside






Main Body

• Inside of body

• Round side walls attach with adhesive






Speaker

• Speaker fits in

molded ring in

body

• Some adhesive

helps keep

secure






Speaker

• Rubber grommet protects

wires in plastic shell






Touch Panel

• Top of device is capacitive touch panel

• Plastic mute button slides into place

• Ring of LED in center of PCB

• Metal threaded spacer is used to protect

components on bottom of PCB (yellow)

• Soldered M2 threaded spacer is 5mm

diameter and 2mm height






Google Home

• Disassembled view

Disassembled – Do Not Remove Enter the name of the object being torn down

and a picture of the completely disassembled

product.



Fastener Summary

Section Heading Slide – Do Not Remove



Fastener Summary

Detail Slide – Copy and use for details. Create a table of the fasteners found in the teardown.

Note thread sizes, lengths, drivers, etc. Multiple pages

can be used for different style fasteners

# Thread Driver Head

Diameter

Head

Thickness

Overall

Length

Link to

Slide #

12 M2 T6 3.35 1.60 6.60

Slide 9

Slide 12

Slide 16

4 M2.2 T6 3.75 1.60 11.75 Slide 7

5 M2 T6 3.35 1.65 6.65 Slide 17

6 M2.5 T8 4.25 1.75 11.50 Slide 20



Alternate Solutions

PennEngineering® recommendations

of alternate hardware and cost savings

opportunities.




TackSert® Pins

• Could replace screws and adhesive for

easier installation.

• Creates permanent joint – useful for any

piece is never remove like the side panel

Detail Slide – Copy and use for details. Note any new solutions (PEM or non-PEM).

Highlight the advantages and disadvantages

of each.



Snap-Top® Standoffs

• Could replace screws for quicker

assembly and disassembly

• Reduces loose hardware



of each.



Keyhole® Standoffs

• Eliminates loose hardware and allows

faster assembly.

• Keyhole shape can easily be molded.



of each.



Conclusions and Summary




Google Home

• The Google Home is almost entirely made of

molded plastic parts. It utilizes molded bosses

and alignment posts to fasten the device

together. Since there will be essentially no

loading on the device, strength of the fasteners

is not a major concern. It is simple to

disassemble if any components break.

• There are 27 total screws in the device.

Detail Slide – Copy and use for details. Summarize the findings and alternate

solutions.


if it is a teardown, remove the confidential note, delete ... · google home december 2016 by jon...

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