US20230413445A1 - Human-machine interface assemblies - Google Patents
Human-machine interface assemblies Download PDFInfo
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- US20230413445A1 US20230413445A1 US18/240,032 US202318240032A US2023413445A1 US 20230413445 A1 US20230413445 A1 US 20230413445A1 US 202318240032 A US202318240032 A US 202318240032A US 2023413445 A1 US2023413445 A1 US 2023413445A1
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- backer
- pcb
- fascia
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- machine interface
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- 238000000429 assembly Methods 0.000 title abstract description 11
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- 239000004033 plastic Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
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- 230000004069 differentiation Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/144—Stacked arrangements of planar printed circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0364—Conductor shape
- H05K2201/0367—Metallic bump or raised conductor not used as solder bump
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/04—Assemblies of printed circuits
- H05K2201/041—Stacked PCBs, i.e. having neither an empty space nor mounted components in between
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10598—Means for fastening a component, a casing or a heat sink whereby a pressure is exerted on the component towards the PCB
Definitions
- This disclosure relates generally to interfaces and, more particularly, to human-machine interface assemblies.
- Example human-machine interface (HMI) assemblies are disclosed.
- One example HMI assembly includes a fascia, and a backer selectively flexible between a first curved state and a second flexed state, and attached to the fascia in the second flexed state to bias the PCB against the fascia.
- FIG. 3 is a side view of another example HMI assembly constructed in accordance with the teachings of this disclosure.
- FIG. 4 is another example backer that may be used to construct the example HMI assembly of FIG. 1 .
- FIG. 5 is a side view of still another example HMI assembly constructed in accordance with the teachings of this disclosure.
- FIG. 14 is a top view of another example PCB.
- FIG. 19 is a side view of an example fascia and PCB assembly constructed in accordance with the teachings of this disclosure.
- FIG. 22 is a side view of an example flexible backer constructed in accordance with the teachings of this disclosure.
- FIG. 27 is a side view of an example fascia having an example feature that may be used to align the example PCB and example backer of FIGS. 20 - 23 .
- Example HMI assemblies disclosed herein may be used as part of any number and/or type(s) of apparatus or devices having a user interface.
- Example apparatuses and devices include, but are not limited to, a domestic appliance such as a refrigerator, a stove, a range, an oven, a microwave, a dishwasher, a washing machine, a dryer, a freezer, an ice maker, a wine cooler, a beer cooler, a clothes refresher, etc., and/or in any other apparatus, device, etc. having an HMI.
- backers may be formed to have any shaped flexible member.
- any combination of flexible member shapes may be used.
- any number of flexible members may be present.
- any number and/or combination(s) of stiff and flexible members may be present.
- flexible and stiff members may be arranged in any pattern(s).
- the spring member 1005 is loaded and, thus, applies a downward pressure (in the orientation of FIG. 10 ) to hold the backer 1010 firmly in place against the fascia 105 .
- the backer 1010 is deformable in at least one direction to allow a non-deformable head 1015 to pass through and become engaged with the backer 1010 .
- openings 2230 and 2235 defined through the backer 2200 positively engage the lock features 2005 , thus, locking the backer 2200 in place against the PCB 2100 and fascia 2000 .
- a fascia 2805 has a feature 2810 defined partially or wholly in the fascia 2805 into which a PCB 2815 may be inset or received to partially or wholly align the PCB 2815 with the fascia 2805 .
- An example feature 2810 is a rabbet joint or ledge around an area of the fascia 2805 into which the PCB 2815 is to be received.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Cookers (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Example human-machine interface (HMI) assemblies are disclosed. One example HMI assembly includes a printed circuit board (PCB) and a backer selectively flexible between a first curved state and a second flexed state, and attached to the fascia in the second flexed state to bias the PCB against the fascia.
Description
- This application is a continuation of U.S. patent application Ser. No. 17/506,824, filed Oct. 21, 2021, now allowed, which is a divisional of U.S. patent application Ser. No. 16/506,515, filed Jul. 9, 2019, now U.S. Pat. No. 11,172,575, issued Nov. 9, 2021, which is a continuation of U.S. patent application Ser. No. 14/938,980, filed Nov. 12, 2015, now U.S. Pat. No. 10,375,829, issued Aug. 6, 2019, all of which are hereby incorporated herein by reference in their entirety.
- This disclosure relates generally to interfaces and, more particularly, to human-machine interface assemblies.
- Many devices have user interfaces that allow a person to operate and monitor the device. Example user interfaces include elements such as buttons, knobs, switches, touch areas, decorative features, illuminated features, etc.
- Example human-machine interface (HMI) assemblies are disclosed. One example HMI assembly includes a fascia, and a backer selectively flexible between a first curved state and a second flexed state, and attached to the fascia in the second flexed state to bias the PCB against the fascia.
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FIG. 1 is a side view of an example human-machine interface (HMI) assembly constructed in accordance with the teachings of this disclosure. -
FIG. 2 is an exploded side view of the example HMI assembly ofFIG. 1 . -
FIG. 3 is a side view of another example HMI assembly constructed in accordance with the teachings of this disclosure. -
FIG. 4 is another example backer that may be used to construct the example HMI assembly ofFIG. 1 . -
FIG. 5 is a side view of still another example HMI assembly constructed in accordance with the teachings of this disclosure. -
FIG. 6 is an exploded side view of the example HMI assembly ofFIG. 5 . -
FIG. 7 is an example printed circuit board (PCB) that may be used to construct the example HMI assembly ofFIG. 5 . -
FIGS. 8 and 9 are alternative example backers that may be used to construct the example HMI assembly ofFIGS. 5 and 6 . -
FIG. 10 is a side view of yet another example HMI assembly constructed in accordance with the teachings of this disclosure. -
FIG. 11 is a side view of still another example HMI assembly constructed in accordance with the teachings of this disclosure. -
FIG. 12 is a top of an example PCB that may be used to construct the example HMI assembly ofFIG. 11 . -
FIG. 13 is a top view of an example touch film that may be used to construct the example HMI assembly ofFIG. 11 . -
FIG. 14 is a top view of another example PCB. -
FIG. 15 is a top view of another example touch film. -
FIG. 16 is a top view of an assembly comprising the example PCB ofFIG. 14 and the example touch film ofFIG. 15 . -
FIG. 17 is a side view of a further example HMI assembly constructed using the example assembly ofFIG. 16 . -
FIG. 18 is a side view of the example HMI assembly ofFIG. 17 in a state with light emitting diodes (LEDs) emitting light. -
FIG. 19 is a side view of an example fascia and PCB assembly constructed in accordance with the teachings of this disclosure. -
FIG. 20 is a top view of an example fascia that may be used to construct the example assembly ofFIG. 19 . -
FIG. 21 is a top view of an example PCB that may be used to construct the example assembly ofFIG. 19 . -
FIG. 22 is a side view of an example flexible backer constructed in accordance with the teachings of this disclosure. -
FIG. 23 is a side view of an example HMI assembly constructed in accordance with the teachings of this disclosure using the example assembly ofFIG. 19 and the example flexible backer ofFIG. 22 . -
FIG. 24 is a side view of another example flexible backer that may be used to construct the example HMI assembly ofFIG. 23 . -
FIG. 25A is a side view of an example feature of a PCB that may be used to align the example PCB and the example flexible backer ofFIGS. 20-23 . -
FIG. 25B illustrates an enlarged portion ofFIG. 25A . -
FIG. 26 is a side view of another example feature of a PCB that may be used to align the example PCB and the example flexible backer ofFIGS. 20-23 . -
FIG. 27 is a side view of an example fascia having an example feature that may be used to align the example PCB and example backer ofFIGS. 20-23 . -
FIG. 28 is a side view of another example fascia having another example feature that may be used to align the example PCB and example backer ofFIGS. 20-23 . -
FIG. 29 is an isometric view of an example header. - Current human-machine interface (HMI) assemblies use connectors to couple touch films and printed circuit boards (PCBs). For example, a touch film may have an extending flat cable that is used to form a connection. Such solutions may be costly, complex, difficult to assemble and/or unreliable. To overcome at least these problems, disclosed example HMI assemblies directly connect a PCB and touch film via opposing contacts that are pressed or biased together by a mechanical force applied by a backer. Various example backer arrangements constructed to apply this force are disclosed herein. In some examples, heatstakes may be eliminated. In other examples, lit touch buttons outside the boundary of a PCB may be constructed.
- Additionally and/or alternatively, the use of heatstakes to construct HMI assemblies can limit where light and/or touch elements can be placed on a fascia. The number and placement of heatstakes may be determined for mechanical reasons. Thus, a heatstake may need to be placed at a location where it is desirable to place lighted and/or touch elements for functional and/or aesthetic reasons. To overcome at least these problems, example heatstakes that can act as a light pipe or light guide are disclosed. In some examples, light can be emitted into a heatstake at a PCB and then exit at an end of the heatstake at the fascia.
- Combinations of any of these examples are contemplated and may be constructed to concurrently realize one or more of the benefits discussed above. The example HMI assemblies disclosed herein may be used as part of any number and/or type(s) of apparatus or devices having a user interface. Example apparatuses and devices include, but are not limited to, a domestic appliance such as a refrigerator, a stove, a range, an oven, a microwave, a dishwasher, a washing machine, a dryer, a freezer, an ice maker, a wine cooler, a beer cooler, a clothes refresher, etc., and/or in any other apparatus, device, etc. having an HMI.
- As used herein, terms such as up, down, top, bottom, side, end, front, back, etc. are used with reference to a currently considered or illustrated orientation. If it is considered with respect to another orientation, it should be understood that such terms must be correspondingly modified.
- Reference will now be made in detail to non-limiting examples of this disclosure, examples of which are illustrated in the accompanying drawings. The examples are described below by referring to the drawings, wherein like reference numerals refer to like elements. When like reference numerals are shown, corresponding description(s) are not repeated and the interested reader is referred to the previously discussed figure(s) for a description of the like element(s). While the examples disclosed herein are, for ease of illustration, flat HMI assemblies, it should be understood that HMI assemblies according to this disclosure may be curved. Moreover, while example arrangements of decorative, touch, light, etc. elements are shown and discussed herein, other arrangements and/or different numbers of elements may be realized. Furthermore, the example HMI assemblies shown in the attached drawings are not drawn to scale, with specific shapes, or with specific relative dimensions as they are not important to this disclosure and may render the drawings more difficult to comprehend. Specific elements may have been intentionally exaggerated for discussion purposes. Instead, the drawings have been drawn for clarity and comprehension.
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FIG. 1 is a side view of anexample HMI assembly 100 constructed in accordance with the teachings of this disclosure.FIG. 2 is an exploded side view of theexample HMI assembly 100 ofFIG. 1 . Theexample HMI assembly 100 includes afascia 105 formed of a decorative material, such as black plastic, painted plastic, etc. and may include, for example, an in-molded label, an in-molded decoration, a polycarbonate layer, a glass layer, a lens, etc. The bottom of the fascia 105 (in the orientation ofFIGS. 1 and 2 ) is the portion of theHMI assembly 100 intended to be seen by and used by a user. - The
example HMI assembly 100 includes atouch film 110 and aPCB 115. As best seen inFIG. 2 , to electrically couple thetouch film 110 and thePCB 115, theexample touch film 110 has anelectrical contact 120 facing thePCB 115, and theexample PCB 115 has anelectrical contact 125 facing theelectrical contact 120 on thetouch film 110. To electrically couple thecontacts HMI assembly 100 includes abacker 130 having a extending orextension member 135, and optionally afeature 140 defined on thefascia 105. When assembled as shown inFIG. 1 , thefeature 140 or thefascia 105 applies an upward force (in the orientation ofFIGS. 1 and 2 ) to thebottom 145 of thetouch film 110 at thecontact 120; and the extending orextension member 135 applies a downward force to the top 150 of thePCB 115 at thecontact 125. That is, thefeature 140 andmember 135 are configured or disposed to press thefirst contact 120 against thesecond contact 125. These upward and downward forces press or bias thecontacts contacts extension member 135, thecontact 125, thecontact 120 and thefeature 140 are linearly aligned along aline 152. - The
example backer 130 is a member formed to hold thetouch film 110 and thePCB 115 to each other and to thefascia 105. To attach thebacker 130 to thefascia 105, theexample fascia 105 includes any number of heatstakes, one of which is designated atreference number 155. As theHMI assembly 100 is assembled, theheatstakes 155 pass through holes (one of which is designated at reference numeral 160) defined through thebacker 130. While not designated inFIG. 2 , theheatstakes 155 also pass through openings defined through thefascia 105 and thePCB 115. When thebacker 130 is pressed against thefascia 105, the portion of theheatstakes 155 extending through theholes 160 are partially melted to form heads (one of which is designated are reference numeral 165) that hold thebacker 130 firmly in mechanically contact with thefascia 105. The formation of theheads 165 creates an elastic force between thefascia 105 and thebacker 130, causing thefeature 140 and the extending orextension member 135 to securely press thecontacts backer 130 to thefascia 105. - In some examples, the
contacts feature 140 are raised features that prevent other aspects of thetouch film 110 orPCB 115 from impeding mechanical and electrical contact. Raised contacts may be, for example, formed of solder in the form of raised flat pads, bumps, domed pads, etc. Moreover, thecontacts contacts other contact contacts contacts FIGS. 1 and 2 , any number and/or type(s) of contacts may be realized by theHMI assembly 100. - Other example methods to align the
contacts example header 2900 shown inFIG. 29 , which would be soldered to thePCB 115. In some examples, a single-row header 2900 such as that shown inFIG. 29 rather than a multi-row header is used to reduce plastic molding tolerances. The piercingmetal pins 2905 on theheader 2900 provide an electrical connection or coupling between the raisedcontacts contacts header 2905 can mechanically mate with thefascia 105 to additionally or alternatively provide a higher retention force. In such an example, the piercingheader pins 2905 effectively socket into thefascia 105. The mating piercings in thefascia 105 could be sized slightly smaller than the pin diameter to create the retention force. In some example, the use of a header could reduce or obviate the need for thebacker 130 when it is not needed for lighting purposes, reducing cost. Theheader 2900 shown inFIG. 29 is a through-hole component that provides enhanced mechanical stability; however, a surface mount component could also be used to lower component and/or processing costs. Other similar mountable electronic components could be used in a similar fashion, including simple mechanical components like metal screws that are screwed through the raisedcontacts fascia 105. These example methods of alignment may be used in addition to or alternatively to the examples discussed below in connection withFIGS. 22, 23, 25A -B, 26, 27 and 28. - As shown in the example of
FIGS. 1 and 2 , thePCB 115 has one or more light emitting diodes (LEDs) 170 that emit light thoughrespective holes 175 defined through thePCB 115, thetouch film 110 and, in some examples, at least partially through thefascia 105. In some examples, theholes 175 have a different radius for each of thePCB 115, thetouch film 110 and thefascia 105. In some examples, theholes 175 are not defined through, or only part way through thefascia 105 when, for example, thefascia 105 is at least partially translucent or transparent. Theholes 175 may have any shape, such as circular. - While not shown in
FIG. 1 for clarity, light cups such as those discussed below in connection withFIG. 18 may be used to direct light from theLEDs 170 through theholes 175. However, light cups need not be used. - As shown in the example of
FIG. 3 ,other portions 305 of abacker 310 may be used to apply a mechanical force to thePCB 115 to bias or press thecontacts members backers members PCB 115. As used herein, a stiff member or element refers to a member or element that is substantially not intended to deflect, deform or otherwise change its shape under normal operating conditions for the HMI assembly to which the stiff member or material belongs. - In some examples, such as that shown in
FIG. 4 , abacker 400 includes astiff portion 405 and acompressible portion 410 such as a rubber, etc. tip or end. In some examples, theportion 410 is constructed to reduce rubbing or other undesired movements against thePCB 115 that may damage thePCB 115 during some uses. Thecompressible portion 410 may, for example, be co-injected or inset into theportion 405. -
FIG. 5 is a side view of anexample HMI assembly 500 having abacker 505 with one or more flexible or elastic extending members, two of which are designated atreference numerals FIG. 6 is an exploded side view of theexample HMI assembly 500 ofFIG. 5 , andFIG. 7 is a top view of anexample PCB 512 having atouch film 513 beneath. InFIGS. 5 and 6 , the example flexible extendingmembers extension member 135, the example flexible extendingmembers PCB 512. As shown inFIG. 6 , theflexible members backer 505 in their relaxed state. The flexible extendingmembers backer 505 to thefascia 105 into their flexed position where they apply the downward force to the top 512A of thePCB 512. Other techniques and/or components may be used to attach thebacker 505 to thefascia 105. Theflexible members PCB 512. Due to the resiliency of the flexible extendingmember 510, less pressure needs to be applied to thebacker 505 during the heatstaking. As shown, the extendingmembers PCB 512 and thetouch film 513. For example, force may be applied by theflexible member 510 tocontacts cells 514 on thetouch film 513. Because the extendingmembers fascia 105 and/orbacker 505. -
FIG. 8 is a side view of anotherexample backer 800 having another exampleflexible member 805 having an S-shape. -
FIG. 9 is a side view of yet anotherexample backer 900 having yet another exampleflexible member 905, having a Z-shape. - As shown in
FIGS. 5, 6, 8 and 9 , backers may be formed to have any shaped flexible member. Moreover, any combination of flexible member shapes may be used. Further, any number of flexible members may be present. Further still, any number and/or combination(s) of stiff and flexible members may be present. Even further, flexible and stiff members may be arranged in any pattern(s). - Turning to
FIG. 10 , spring members (one of which is designated at reference numeral 1005) are used to attach abacker 1010 to thefascia 105 instead of or in addition to heatstakes. Theexample spring member 1005 ofFIG. 10 is attached at one end to thefascia 105. Thespring member 1005 pass through thetouch film 110 andPCB 115. Ahead 1015 of thespring member 1005 is deformable allowing thehead 1015 to pass through anopening 1020 defined through thebacker 1010. Having passed through theopening 1020, thehead 1015 returns to its original shape, thus preventing thehead 1015 from passing back through theopening 1020. Locked or engaged in place, thespring member 1005 is loaded and, thus, applies a downward pressure (in the orientation ofFIG. 10 ) to hold thebacker 1010 firmly in place against thefascia 105. Additionally or alternatively, thebacker 1010 is deformable in at least one direction to allow anon-deformable head 1015 to pass through and become engaged with thebacker 1010. -
FIG. 11 is a side view of still anotherexample HMI assembly 1100 constructed in accordance with the teachings of this disclosure.FIG. 12 is a top view of anexample PCB 1200 that may be used to construct theexample HMI assembly 1100.FIG. 13 is a top view of anexample touch film 1300 that may be used to construct theexample HMI assembly 1100. - In the example of
FIGS. 11-13 , aheatstake 1105 attaches thefascia 105 to thebacker 130. The heatstake 1105 passes through anopening 1205 defined through the PCB 1200 (seeFIG. 12 ) and anopening 1305 defined through the touch film 1300 (seeFIG. 13 ). In some examples, cross-sections of theheatstake 1105, opening 1205 and theopening 1305 correspond. The example heatstake 1105 is at least partially transparent or translucent, or otherwise capable of receiving, transporting, emitting, etc. light. - An
example touch cell 1310 of thetouch film 1300 surrounds theopening 1305. Theopening 1205 of thePCB 1200 aligns with thetouch cell 1310, as shown inFIG. 12 , where thetouch cell 1310 shown with dotted lines is depicted as being below thePCB 1200 at theopening 1205. - As shown in
FIGS. 11 and 12 , anLED 1210 on thePCB 1200 emits light 1110 into the side of theheatstake 1105 using any number of element(s), technique(s) and/or method(s). The light 1110 passes downward (in the orientation ofFIG. 11 ) along theheatstake 1105 and is emitted as light 1115 out through thefascia 105. Because the heatstake 1105 passes through thetouch cell 1310, the emitted light 1110 illuminates at least the center of thetouch cell 1310 at thefascia 105. In some examples, a diffuser or other optical element may be implemented at thefascia 105 to improve the quality, evenness, color, etc. of the emitted light 1115. Thus, the light 1110 may differ from the light 1115. In some examples, theheatstake 1105 has a planar side along at least a portion of its length to improve light capture from theLED 1210. In other examples, theLED 1210 sits in front of a single-axis concave shape on a rounded wall portion on theheatstake 1105, such as a pipe wall cut in half shape. -
FIG. 14 is a top view of anexample PCB 1400.FIG. 15 is a top view of anexample touch film 1500.FIG. 16 is top view of anexample assembly 1600 constructed from theexample PCB 1400 andexample touch film 1500.FIG. 17 is a side view of anexample HMI assembly 1700 constructed in accordance with the teachings of this disclosure using theexample PCB 1400, theexample touch film 1500, and theexample assembly 1600. - As shown in
FIGS. 14 , theexample PCB 1400 has openings defined therethrough (one of which is designated at reference numeral 1405) that allow light emitted by LEDs (one of which is designated at reference numeral 1410) to pass through theopening 1405. Theexample PCB 1400 has additional LEDS, such as anLED 1415 intended to illuminate portions of theexample HMI assembly 1700 beyond the border or periphery of thePCB 1400. - The
example touch film 1500 ofFIG. 15 has touch cells corresponding to theopenings 1405, one of which is designated atreference number 1505. Thetouch film 1500 has additional touch cells, such as atouch cell 1510 that, as shown inFIG. 15 , are positioned outside the border or periphery of thePCB 1400. In some examples, theportion 1515 of thetouch film 1500 that is beyond thePCB 1400 includes LEDs or other components and circuits, and/or a top portion of thetouch film 1500 is exposed. In this way, thetouch film 1500 may, at least partially, implement functionality normally done on a PCB. In some examples, thetouch film 1500 outside thePCB 1400 is glued or otherwise adhered to thefascia 105, seeFIG. 17 . - The
example assembly 1600 ofFIG. 16 is constructed by positioning or placing thePCB 1400 in the orientation ofFIG. 14 on top of thetouch film 1500 in the orientation ofFIG. 15 . As shown, theopenings 1405 in thePCB 1400 align with thetouch cells 1505 on thetouch film 1500 to allow light emitted by theLEDs 1410 to illuminate thetouch cells 1505. TheLEDs 1415 are positioned to illuminate thetouch cell 1510, which is outside the border or periphery of thePCB 1400. -
FIG. 17 is a side view of anexample HMI assembly 1700 constructed in accordance with the teachings of this disclosure using theexample assembly 1600 ofFIG. 16 . The side view ofFIG. 17 is taken looking toward the right side of theexample assembly 1600, in the orientation ofFIG. 16 . Similar to the examples shown and discussed above, abacker 1705 is attached to thefascia 105 and holds thePCB 1400,touch film 1500 andfascia 105 together in place. Thebacker 1705 may be constructed using any of the examples discussed above. - The
example backer 1705 ofFIG. 17 is constructed to form light cups, zones, areas, regions, etc. (one of which is designated at reference numeral 1710) that serve to reflect and contain light emitted by theLEDs reflective surfaces 1715. It should be understood that any of the examples shown and discussed herein may implement light cups. Moreover, an HMI assembly may include any number and/or shape(s) of light cups arranged in any way. -
FIG. 18 illustrates an example state of theHMI assembly 1700 in which theLEDs FIG. 18 , thelight cups 1710 andsurfaces 1715 serve to direct the light emitted by theLEDs touch cells fascia 105. -
FIG. 19 is a side view of anexample assembly 1900 constructed in accordance with the teachings of this disclosure using anexample fascia 2000 shown inFIG. 20 and anexample PCB 2100 shown inFIG. 21 .FIG. 20 is a top view of theexample fascia 2000, andFIG. 21 is a top view of theexample PCB 2100. - As will be discussed below in more detail, the
example fascia 2000 includes any number and/or type(s) of features (one of which is designated at reference numeral 2005) that allow a backer to be affixed to thefascia 2000. Theexample feature 2005 is a cantilevered hook. Other example features include, but are not limited to, a post and dome, a bayonet and finger, etc. In other examples, instead of a snap feature, a feature such as a post may be used that allows a backer to be screwed down in place. In more examples, the feature is constructed to allow, for example, a latch on thefascia 2000 or a backer to hold the backer down in place. - To illuminate decorative areas of the fascia 2000 (one of which is designated at reference numeral 2010), the
example PCB 2100 has correspondingopenings 2105 defined therethrough andcorresponding LEDs 2110. As shown inFIGS. 19 and 23 , thefascia 2000 andPCB 2100 are assembled by placing thePCB 2100 on top of thefascia 2000, in the orientation ofFIGS. 19 and 23 . -
FIG. 22 is a side view of an exampleflexible backer 2200 that may be attached to thefascia 2000 to hold thePCB 2100 in place against thefascia 2000. Theflexible backer 2200 is a selectively flexible, meaning it can be flexed between and/or reversibly flexed between different shapes or states. An exampleflexible backer 2200 comprises an elastic material. Thus, as shown inFIGS. 22 and 23 , thebacker 2200 can be moved between a curved state orshape 2205, and a generally flat or planar state orshape 2210. In the examples disclosed herein, the curved state orshape 2205 is a relaxed or free of tension state, and the flat or planar state orshape 2210 is a flexed or loaded state. As used herein, curved and flat when referring to a backer refers to the overall shape of the backer, ignoring, for example, any features such as a light cup, stiff member, flexible members, etc. that maybe defined in or be a part of a backer. One of ordinary skill in the art will instantly recognize the meaning and differentiation between a curved state or shape of a backer, and a flat or planar state of shape of a backer. - With reference to
FIG. 23 , thebacker 2200 may be assembled to thePCB 2100 andfascia 2000 by placing amiddle portion 2215 of thebacker 2200 against amiddle portion 1905 of thePCB 2100 andfascia 2000assembly 1900 ofFIG. 19 . Of course, thebacker 2200,PCB 2100 andfascia 2000 may have other alignment(s) and/or orientation(s). The ends of thebacker 2200 are moved, pushed or forced toward thefascia 2000 by applying a downward force (in the orientation ofFIGS. 22 and 23 ) to theends backer 2200. As theends backer 2200 approach thefascia 2000,openings backer 2200 positively engage the lock features 2005, thus, locking thebacker 2200 in place against thePCB 2100 andfascia 2000. - In other examples, screws passing through the
backer 2200 at theends fascia 2000 to hold thebacker 2200 against thePCB 2100 andfascia 2000. It should be understood that any other means to attach theends fascia 2000 may be used. - As the
backer 2200 is flexed from thecurved state 2205 to theflat state 2210, a downward force 2305 (in the orientation ofFIGS. 19-23 ) is created in themiddle portion 2215 of thebacker 2200. Thisdownward force 2305 is transferred to thePCB 2100 by thebacker 2200 and may be used to provide any of the benefits describe herein, and/or to construct any of the disclosed examples to provide a force to bias a PCB against a touch film shown and discussed in connection with at leastFIGS. 1-10 . - As best demonstrated in
FIG. 23 , thebacker 2200 may have a shape, feature orcontour 2240 that serves to position thePCB 2100 relative to thefascia 2000. - As shown, the
backer 2200 may includelight cups 2245 as discussed and shown above in connection with at leastFIGS. 17 and 18 to direct light from theLEDs 2110 through theopenings 2105 and thedecorative elements 2010. - While omitted for clarity of illustration, the
example HMI assembly 2300 may include a touch film, as discussed above in connection with other examples. - Turning to
FIG. 24 , in some examples, aflexible backer 2400 includes one or morecompressible portions 2405, such as a rubber, etc. tip or end. In some examples, theportions 2405 are constructed improve light block, to reduce rubbing or other undesired movements against a PCB, which may damage the PCB during some uses, and/or any alternative and/or additional purpose. - In
FIG. 25A , aPCB 2505 has ahole 2510 defined at least partially through thePCB 2505 to receive aportion 2515 of abacker 2520. An enlarged view of theportion 2515 and thehole 2510 is shown inFIG. 25B . The engagement of thehole 2510 and theportion 2515 serves to partially or wholly align thePCB 2505 with thebacker 2520. - In
FIG. 26 , aPCB 2605 has a raisedfeature 2610 defined to receive aportion 2615 of abacker 2620. An example raisedfeature 2610 comprises a flat area surrounded at least partially by a wall or upward extending feature. The engagement of thefeature 2610 and theportion 2615 serves to partially or wholly align thePCB 2605 with thebacker 2620. - In
FIG. 27 , a raised or extendingfeature 2705 of afascia 2710 engages aboundary 2715 of aPCB 2720 to partially or wholly align thePCB 2720 with thefascia 2710. Example raised features include, but are not limited to a plastic post or rib. - In
FIG. 28 , afascia 2805 has afeature 2810 defined partially or wholly in thefascia 2805 into which aPCB 2815 may be inset or received to partially or wholly align thePCB 2815 with thefascia 2805. Anexample feature 2810 is a rabbet joint or ledge around an area of thefascia 2805 into which thePCB 2815 is to be received. - Any of the example alignment constructions of
FIGS. 23-28 may be used alone and/or in any combination(s). - Although certain example methods, apparatus and articles of manufacture have been described herein, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all methods, apparatus and articles of manufacture fairly falling within the scope of the claims of this patent.
Claims (20)
1. A human-machine interface assembly, comprising: a fascia;
a printed circuit board (PCB); and
a backer selectively flexible between a first curved state and a second flexed state, and attached to the fascia in the second flexed state to bias the PCB against the fascia.
2. The human-machine interface assembly of claim 1 , wherein when the backer is flexed from the first curved state to the second flexed state and attached to the fascia, the backer creates an elastic stress that biases the PCB against the fascia.
3. The human-machine interface assembly of claim 1 , wherein the backer includes a material that reduces relative movement of the backer and the PCB.
4. The human-machine interface assembly of claim 3 , wherein the material is co-injected into the backer and/or inserted into the backer.
5. The human-machine interface assembly of claim 1 , wherein the backer includes a light-sealant material.
6. The human-machine interface assembly of claim 5 , wherein the light-sealant material is co-injected and/or inserted into the backer.
7. The human-machine interface assembly of claim 1 , wherein the PCB includes an alignment feature, the alignment feature being configured to align the fascia and the PCB.
8. The human-machine interface assembly of claim 7 , wherein the alignment feature includes an opening defined through at least a portion of the PCB.
9. The human-machine interface assembly of claim 8 , wherein a portion of the backer is disposed in the opening.
10. The human-machine interface assembly of claim 7 , wherein the alignment feature extends from a surface of the PCB.
11. The human-machine interface assembly of claim 10 , wherein the alignment feature comprises a flat area surrounded at least partially by a wall to define an alignment space, and a portion of the backer is disposed in the alignment space.
12. The human-machine interface assembly of claim 1 , wherein the fascia includes an alignment feature, the alignment feature being configured to align the fascia and the PCB.
13. The human-machine interface assembly of claim 12 , wherein the alignment feature extends from a surface of the fascia abutting the PCB.
14. The human-machine interface assembly of claim 12 , wherein the alignment feature is defined at least partially through the fascia.
15. The human-machine interface assembly of claim 12 , where the alignment feature includes a latch extending through an opening of the backer.
16. The human-machine interface assembly of claim 1 , wherein the backer includes one or more light cups.
17. The human-machine interface assembly of claim 1 , wherein the backer includes a plurality of compressible portions, and at least one compressible portion is in contact with the PCB.
18. The human-machine interface assembly of claim 1 , wherein the fascia includes an extension or ledge engaged with the PCB.
19. The human-machine interface assembly of claim 1 , wherein, in the first curved state, a surface of the backer is concave, and, in the second flexed state, the surface is parallel to the PCB.
20. A method of assembling the human-machine interface assembly of claim 1 , the method comprising:
placing a middle portion of the backer against a middle portion of the PCB while the backer is in the first curved state;
moving ends of the backer toward the fascia to transition the backer from the first curved state to the second flexed state; and
engaging the ends of the backer with the fascia to secure the backer, the fascia, and the PCB together.
Priority Applications (1)
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US18/240,032 US20230413445A1 (en) | 2015-11-12 | 2023-08-30 | Human-machine interface assemblies |
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US14/938,980 US10375829B2 (en) | 2015-11-12 | 2015-11-12 | Human-machine interface assemblies |
US16/506,515 US11172575B2 (en) | 2015-11-12 | 2019-07-09 | Human-machine interface assemblies |
US17/506,824 US11792935B2 (en) | 2015-11-12 | 2021-10-21 | Human-machine interface assemblies |
US18/240,032 US20230413445A1 (en) | 2015-11-12 | 2023-08-30 | Human-machine interface assemblies |
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US17/506,824 Continuation US11792935B2 (en) | 2015-11-12 | 2021-10-21 | Human-machine interface assemblies |
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US16/506,515 Active US11172575B2 (en) | 2015-11-12 | 2019-07-09 | Human-machine interface assemblies |
US17/506,824 Active US11792935B2 (en) | 2015-11-12 | 2021-10-21 | Human-machine interface assemblies |
US18/240,032 Pending US20230413445A1 (en) | 2015-11-12 | 2023-08-30 | Human-machine interface assemblies |
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US17/506,824 Active US11792935B2 (en) | 2015-11-12 | 2021-10-21 | Human-machine interface assemblies |
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CN107835562A (en) * | 2017-10-31 | 2018-03-23 | 安徽深泽电子股份有限公司 | A kind of thickening type MULTILAYER COMPOSITE circuit board and preparation method thereof |
US11372490B2 (en) | 2020-03-30 | 2022-06-28 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Touch panel and touch display panel |
CN111459326B (en) * | 2020-03-30 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | Touch panel and touch display panel |
DE102020121562B4 (en) * | 2020-08-17 | 2023-03-09 | Preh Gmbh | Control panel with improved fastening of a film layer structure for capacitive touch detection and the associated assembly method |
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US11172575B2 (en) | 2021-11-09 |
US20190335587A1 (en) | 2019-10-31 |
US20170142835A1 (en) | 2017-05-18 |
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