Interchangeable Components for Mobile Phone Cases
84 patents in this list
Updated:
Mobile phone cases face increasing demands for versatility while maintaining core protective functions. Current designs must accommodate multiple device dimensions (ranging from 138-178mm in length), support peripheral attachments, and preserve IP67/68 water resistance ratings—all while keeping manufacturing costs viable for mass production.
The fundamental challenge lies in creating modular, adaptable case architectures that maintain structural integrity and device protection across varied use configurations.
This page brings together solutions from recent research—including expandable component systems, waterproof modular attachments, interchangeable lens mounts, and detachable storage compartments. These and other approaches demonstrate how manufacturers are addressing customization needs while maintaining essential protective qualities.
1. Mobile Phone Case with Detachable Edge Strips and Bottom Panels in Recessed Grooves
SHENZHEN YIKEXING IND CO LTD, SHENZHEN YIKEXING INDUSTRIAL CO LTD, 2024
Wear-resistant mobile phone case with replaceable protective parts to prevent edges and bottom from wearing and discoloration due to prolonged use. The case has detachable edge strips and bottom panels that can be swapped out when worn instead of replacing the whole case. The strips and panels fit into recessed grooves on the case body.
2. Modular Detachable Smartphone Case with Integrated Storage, OTG Connectivity, and Power Supply Modules
SHENZHEN COMMERCIAL DISPLAY TECH CO LTD, SHENZHEN COMMERCIAL DISPLAY TECHNOLOGY CO LTD, 2024
Modular detachable protective case for smartphones that provides additional functionality beyond just phone protection. The case has removable modules inside for storage, OTG (On-The-Go) connectivity, and power. The modules connect to components inside the case like a storage unit, OTG connection unit, and power supply. This allows external devices to be plugged into the case itself instead of the phone. It improves the functionality of the case beyond just protection.
3. Modular Mobile Phone Case with Magnetically Attached Removable Back Cover
SHENZHEN HEITAO CREATIVE TECH CO LTD, SHENZHEN HEITAO CREATIVE TECHNOLOGY CO LTD, 2024
A modular mobile phone case that allows easy customization and replacement of the back cover by using magnets. The case has a removable back cover with magnets at the corners that attach to corresponding magnets in the case. This allows quick and tool-less removal and installation of the back cover. The magnets also enhance grip and prevent the cover from lifting.
4. Modular Mobile Phone Case with Interchangeable Auxiliary Components and Integrated Limit Bars
FUJIAN XINXING ZHONGJU INFORMATION TECH CO LTD, FUJIAN XINXING ZHONGJU INFORMATION TECHNOLOGY CO LTD, 2023
Personalized customizable mobile phone case that allows users to mix and match interchangeable components to create a unique case that meets their specific needs and preferences. The case has a main case and two auxiliary cases that can be assembled and disassembled. The main case has a camera hole and limit bars to securely hold the auxiliary cases. The auxiliary cases have their own camera holes. This allows users to swap out the auxiliary cases with different features like lens protectors, magnetic mounts, power banks, etc. The main case can also be used separately as a basic phone case.
5. Mobile Phone Case with Interlocking Grooved Frame and Magnetic Securing Mechanism
SUN LIAN, 2023
Mobile phone case with improved disassembly and assembly convenience compared to existing cases. The case has a front and back section connected by a buckle. The front section has an upper frame with recessed grooves and the back section has lower frames with protrusions that match the grooves. This allows detaching the front and back sections by sliding the protrusions out of the grooves. Magnets in the grooves further secure the sections together. The multiple fixing structures cooperate to better fix the phone and avoid single point failures.
6. Mobile Phone Case with Magnetically Attached Replaceable Back Panel
KANG SHIJIAN, 2023
A mobile phone case with a replaceable back panel that allows customization and magnetic attachment. The case has magnets embedded in the base that match magnets on the detachable back panel. This magnetic attraction securely holds the back panel without tools or adhesives. The replaceable back panel can have different designs or colors compared to the case. This enables customization and prevents waste from buying new cases for every style change. The magnets also enhance magnetic wireless charging stability by providing additional attraction force.
7. Mobile Phone Case with Interchangeable Dual-Shell Color System
GUANGDONG BAOSEN ELECTRONIC TECH CO LTD, GUANGDONG BAOSEN ELECTRONIC TECHNOLOGY CO LTD, 2023
Detachable mobile phone case with interchangeable color options. The case has two separate shells, one on each side, that can be easily swapped to change the color. The shells connect through matching holes and channels. This allows users to customize the color of their case by swapping out one side.
8. Mobile Phone Case with Sliding Key and Pressing Plate Assembly for Removable Back Cover
CHEN HAI, 2023
Mobile phone case with easy disassembly for cleaning and maintenance. The case has a removable back cover that can be taken off separately from the main case. This allows access to the phone without needing to remove the whole case. The back cover attaches to the main case using a sliding key and pressing plate assembly that slides and locks in place. This provides secure connection strength while allowing easy disassembly. The case also has an embedded groove on one side near the back cover that mates with a corresponding groove on the back cover. This helps align and guide the back cover when removing it.
9. Phone Case with Interchangeable Frame and Removable Electronics Module
STAR CO Scientific Technologies Advanced Research Co, LLC d/b/a STAR CO, 2023
A universal phone case that provides compatibility with different phone models by having an interchangeable frame and removable electronics module. The case consists of a frame that holds the phone and an electronics box that contains components like battery, camera, etc. The frame is specific to the phone size, but the electronics box can be swapped between frames. This allows using the same case and electronics module with multiple phone models by just replacing the frame when the phone dimensions change.
10. Segmented Phone Case with Hinge-Connected Detachable Top and Bottom Segments
DONGGUAN WANGXINYUAN PRECISION TECH CO LTD, DONGGUAN WANGXINYUAN PRECISION TECHNOLOGY CO LTD, 2023
Segmented phone case with detachable top and bottom parts connected by a hinge. The case has a two-piece design with a hinge at the boundary between the top and bottom segments. This allows the bottom segment to be folded backwards and detached from the phone, leaving just the top segment attached. This provides a way to easily remove and carry just the bottom segment with the phone, while keeping the top segment on the phone for protection. The hinge connection allows the segments to separate and reattach when needed.
11. Mobile Phone Case with Telescopic Detachable Support and Rotating Ring Buckle
DONGGUAN CHENGGONG ELECTRONIC TECH CO LTD, DONGGUAN CHENGGONG ELECTRONIC TECHNOLOGY CO LTD, 2022
A mobile phone case with a detachable support that can be easily attached and removed. The case has a fixed portion inside the case housing and a detachable support that connects to the fixed portion. The support has a base, a locking part that telescopes into the base, and a rotating ring buckle on the base. The support abuts against the housing and the locking part engages with the fixed portion to secure the support in place. Pressing a button on the locking part allows the support to detach from the housing. This provides a way to easily attach and remove a support from the case when needed, without carrying a separate stand.
12. Detachable Mobile Phone Case with Interchangeable Decorative Shell and Removable Adhesive Connection
GUANGDONG SUSHI ENVIRONMENTAL PROTECTION TECH CO LTD, GUANGDONG SUSHI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD, 2022
A detachable two-piece mobile phone case with interchangeable designs. The case has a removable decorative shell that attaches to a supporting shell. The decorative shell has leather edges and can be swapped out to change the appearance of the case. The detachability allows users to customize the case with different decorative shells instead of being limited to fixed patterns. The shells connect using removable adhesive that is easy to peel off and replace.
13. Modular Mobile Phone Case with Adjustable T-Groove Sliding Corners and Replaceable Pivot Mechanism
FENG RUI, 2022
Assembled mobile phone case that allows customization and repairability by using movable corners that can adjust to fit different phone sizes. The case has a central stabilizing plate with movable corners. Each corner has a T-shaped block that slides in a T-shaped groove on the plate. Springs clamp the blocks to hold the corners in place. This allows the case to expand or contract to fit phones of different widths. If a corner gets damaged, it can be replaced instead of the whole case. The corners also have adjustable pivot points to allow rotating the phone within the case.
14. Protective Case with Detachable Shell and Movable Clamp Mechanism
DONGGUAN RENCHANG INSULATION MAT CO LTD, DONGGUAN RENCHANG INSULATION MATERIALS CO LTD, 2022
A mobile phone protective case with detachable components that allows easy replacement and reduces waste compared to fixed cases. The case has a frame with a movable shell attached to one side. The corners of the movable shell have movable clamps that squeeze and release the case frame to attach and detach the shell. This allows the shell to be removed and replaced independently instead of replacing the whole case when worn. The movable clamps press and release components to secure the shell.
15. Size-Adjustable Smartphone Case with Movable Auxiliary Body and Spiral Spring Mechanism
LEE KUN, 2022
A size-adjustable smartphone case that can fit different sized rollable phones with changing screen sizes. The case has a main body that covers the phone's sides and has a camera hole. An auxiliary body extends between the main body and the phone's back. This auxiliary body can move to adjust the case size as the phone expands or contracts. A spiral spring connects the main body and auxiliary body. An inner cover holds the spiral spring and prevents the bodies from separating. This allows the case to expand and contract with the rollable phone without compromising protection or fit.
16. Modular Phone Case with Replaceable Camera Protection Sheet and Interlocking Card Slot Mechanism
SHENZHEN RONGXINDA PLASTIC PRODUCTS CO LTD, 2022
Detachable, modular phone case with a replaceable camera protection sheet to prevent waste if the camera area gets damaged. The case has a fixed inner piece with a camera groove. The removable camera protection sheet goes inside the groove and attaches with a rectangular sheet that has rounded corners and card blocks. The case edges have matching slots for the cards. This allows the camera sheet to be easily swapped if it gets damaged, instead of replacing the entire case.
17. Modular Mobile Phone Case with Hook-Shaped Interlocking Edge Mechanism
JIUJIANG ZHENCHUANG NEW MATERIAL TECH CO LTD, JIUJIANG ZHENCHUANG NEW MATERIAL TECHNOLOGY CO LTD, 2022
An easy to disassemble and assemble all-in-one mobile phone case with a unique detachable connection between the two main body pieces. The case has an inner body with a recess to hold the phone, and outer body with a hook-shaped engaging portion along the edge. The inner body has a camera and charging interface avoidance hole that connects to the outer body. The outer body has a corresponding hook-shaped portion to interlock with the inner body. This allows the case to be quickly and easily assembled and disassembled by snapping the hooks together.
18. Mobile Phone Case with Integrated Shell and Interference-Fit Removable Screen Protector
SHENZHEN KALIRAI TECH CO LTD, SHENZHEN KALIRAI TECHNOLOGY CO LTD, 2022
An all-in-one mobile phone case with integrated shell and screen protector that provides complete protection for the phone. The case has a bottom section with a phone compartment and a removable top cover with a screen protector. The top cover attaches to the bottom section using interference fit. This allows the phone to be inserted into the bottom section, then the top cover with screen protector is attached. The top cover and bottom section join seamlessly around the phone to provide full coverage and protection. The removable top cover also allows the screen protector to be replaced separately.
19. Protective Mobile Device Case with Modular Rear Compartment and Multiple Accessory Attachment Slots
Andre Lamont Chenier, 2022
This is a protective case for mobile devices that provides modular, customizable attachment points for accessories. The case has an inner and outer wall that forms a rear compartment on the back of the device. The rear compartment has multiple slots to receive adaptor modules that connect the case to various peripherals. The modular design allows for the simultaneous attachment of diverse accessories to the case without the need to remove the case.
20. Waterproof Mobile Phone Case with Detachable Snap-Fit Parts and Integrated Sealing Mechanism
CHEN LIWU, 2022
A waterproof mobile phone case with detachable snap-fit front and rear parts that provides improved sealing over traditional slide-on covers. The case has an inner PC sheet in the rear case and waterproof seals in the front frame that match the phone's button and port locations. This allows a tight snap fit without needing a separate gasket that can loosen. The front frame also has a removable silicone plug for the charging port.
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These patents provide a variety of methods for detachable smartphone case components. These consist of easily changeable pieces that may be used with a variety of devices, modular designs that enable extras to be attached, and waterproof casings that snap together.