A power module for a luggage case
By introducing a flexible locking structure and unlocking block design into the electric luggage compartment, the problem of inconvenient battery removal is solved, enabling rapid battery replacement and stable power supply. It is suitable for 20-inch luggage and complies with civil aviation regulations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SHAMIT INTELLIGENT LUGGAGE TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-09
AI Technical Summary
The replacement process for the power battery of existing electric luggage is quite inconvenient, especially since screws and knobs are required during disassembly and installation, making operation difficult.
A power module with an elastic locking structure was designed. Through the cooperation of locking and unlocking blocks, reliable installation and easy disassembly of the power battery are achieved. The locking groove and guide slope ensure stable locking and elastic unlocking of the battery casing. Combined with the design of internal compression spring and unlocking press block, the battery can be replaced quickly.
It achieves stable power supply and rapid replacement of power batteries, and can be installed and removed without tools, improving ease of use and practicality. It is suitable for power banks that comply with civil aviation regulations.
Smart Images

Figure CN224342437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply technology for suitcases, and in particular to a power module for suitcases. Background Technology
[0002] A suitcase, also known as a rolling suitcase, is a box carried when traveling to store items such as clothes and daily necessities. Electric suitcases are improvements on traditional suitcases, allowing passengers to ride them, thus reducing the burden of carrying a physical suitcase.
[0003] The utility model patent with patent number CN220859609U discloses an electric suitcase, belonging to the field of suitcases. It includes a suitcase body, a battery, a controller, a slide rail disposed inside the suitcase body, a telescopic rod mounted on the slide rail and protruding outside the suitcase body that can slide along the slide rail, and a driver for driving the telescopic rod to slide. The bottom of the telescopic rod is provided with a rack, and the output end of the driver is provided with a drive gear adapted to the rack. The driver drives the rack to move laterally by rotating forward and backward, and drives the telescopic rod to extend and retract.
[0004] In the aforementioned patent, the battery is detachably installed in a battery slot. This design allows users to easily remove and replace the battery when it is depleted or damaged, greatly improving user convenience. Most traditional installations rely on screws and knobs for connection, making disassembly rather inconvenient. Utility Model Content
[0005] The purpose of this invention is to provide a power module for luggage that addresses the shortcomings of existing technologies.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A power module for a suitcase includes a battery bracket detachably mounted on the suitcase. The battery bracket has a power cavity, and a power battery is detachably mounted in the power cavity. The power battery is fitted with a battery casing, and an internal compression spring is provided inside the power cavity. The internal compression spring can cause the battery casing, in which the power battery is mounted, to elastically pop outward. The battery casing has a locking groove, and the battery bracket has an elastic locking structure that engages with the locking groove. The elastic locking structure includes a locking block that can elastically insert into the power cavity and an unlocking block that can movably move the locking block away from the power cavity.
[0008] Furthermore, the elastic locking structure also includes an unlocking seat disposed on the battery bracket. The side wall of the unlocking seat is formed with an outer sliding groove for the locking block to slide, and the battery bracket is formed with an inner sliding groove that is laterally aligned with the outer sliding groove and allows the locking block to pass through.
[0009] Furthermore: the outer end of the locking block is formed with a stop surface that cooperates with the locking groove and a guide slope that slides with the battery casing. The stop surface is formed on the inner side wall of the outer end of the locking block, and the guide slope is formed on the outer side wall of the outer end of the locking block.
[0010] Furthermore: the locking block is formed through an unlocking groove for the unlocking block to slide through.
[0011] Furthermore: the unlocking block includes a first sliding bar with a first width and a second sliding bar with a second width, the second sliding bar being integrally formed on the outer end of the first sliding bar, and an unlocking bevel being formed in the transition area between the first and second sliding bars.
[0012] Furthermore: the first width is greater than the second width, and the size of the first width does not exceed the width of the unlocking slot; the unlocking seat is provided with a first sliding guide rail for guiding the first sliding bar to slide and a second sliding guide rail for guiding the second sliding bar to slide.
[0013] Furthermore: the outer end of the unlocking seat is formed with an unlocking drive groove, the unlocking drive groove is installed with an unlocking pressing block, the unlocking pressing block is connected to the first sliding bar, and an unlocking compression spring is provided inside the unlocking seat to drive the unlocking seat to elastically approach the unlocking drive groove.
[0014] Furthermore: The inner end of the unlocking press block is formed with a limiting block that cooperates with the unlocking drive groove stop.
[0015] Furthermore: an inner conductive block is installed on the inner end wall of the power cavity, and multiple conductive contacts are formed on the outer end of the inner conductive block. Battery metal contacts are installed on the battery casing, which are laterally aligned with the conductive contacts. The battery metal contacts are connected to the power battery signal.
[0016] Furthermore: a bracket plate is installed on the outer end of the battery bracket, the bracket plate is formed with a plug-in slot, the opening of the unlocking drive slot and the power cavity are all located in the plug-in slot, and the plug-in slot is hinged with a cover.
[0017] The beneficial effects of this utility model are as follows: The battery casing, containing the power battery, is installed into the power cavity of the battery bracket. During installation, the locking block of the elastic locking structure slides and engages with the battery casing until the locking block is laterally aligned with the locking groove of the battery casing. At this point, the locking block is embedded in the locking groove, locking the battery casing. The battery casing locking mechanism is installed within the power cavity, ensuring stable power supply and conductivity. When unlocking is required, the unlocking block is moved, causing the locking block to move away from the power cavity, thus disengaging the locking block from the locking groove of the battery casing. Under the elastic drive of the internal compression spring in the power cavity, the battery casing pops out of the power cavity, allowing for battery removal. The installation and removal of the power battery can be achieved without tools or screws, making the entire process convenient. When the power battery is low on power, it can be removed for charging, enhancing its practicality. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of the power module.
[0019] Figure 2 This is a schematic diagram showing the structure where the power support bracket and the power battery are separated.
[0020] Figure 3 This is a schematic diagram of an elastic locking structure.
[0021] Figure 4 This is a schematic diagram of the structure of the locking block and the unlocking block working together.
[0022] The reference numerals in the figures include:
[0023] 1-Battery bracket,
[0024] 10-Power chamber, 11-Power battery, 12-Battery casing, 13-Inner compression spring, 14-Inner conductive block
[0025] 15-Conductive contact, 16-Battery metal contact, 17-Bracket plate, 18-Plug-in slot, 19-Shielding cover,
[0026] 2-Elastic locking structure,
[0027] 21-Unlocking seat, 22-Locking block, 23-Stop surface, 24-Guide slope, 25-Outer sliding groove
[0028] 26-Inner sliding groove, 27-Locking groove, 28-Locking spring, 29-Unlocking groove
[0029] 3-Unlock Block,
[0030] 31-First sliding bar, 32-Second sliding bar, 33-Unlocking ramp, 34-First sliding guide rail
[0031] 35-Second sliding guide rail, 36-Unlock drive slot, 37-Unlock press block, 38-Limit block
[0032] 39 - Unlock the compression spring. Detailed Implementation
[0033] The present invention will now be described in detail with reference to the accompanying drawings.
[0034] like Figure 1-4As shown, a power module for a suitcase includes a battery bracket 1 detachably mounted on the suitcase. The battery bracket 1 has a power cavity 10, and a power battery 11 is detachably mounted on the power cavity 10. The power battery 11 is fitted with a battery casing 12. An internal compression spring 13 is provided inside the power cavity 10. The internal compression spring 13 can cause the battery casing 12, on which the power battery 11 is mounted, to elastically pop outward. The battery casing 12 has a locking groove 27. The battery bracket 1 is provided with an elastic locking structure 2 that engages with the locking groove 27. The elastic locking structure 2 includes a locking block 22 that can elastically insert into the power cavity 10 and an unlocking block 3 that can movably move the locking block 22 away from the power cavity 10.
[0035] The battery casing 12, which houses the power battery 11, is inserted into the power cavity 10 of the battery bracket 1. During installation, the locking block 22 of the elastic locking structure 2 slides and engages with the battery casing 12 until the locking block 22 is laterally aligned with the locking groove 27 of the battery casing 12. At this point, the locking block 22 is embedded in the locking groove 27, thus locking the battery casing 12. The battery casing 12 is locked within the power cavity 10, ensuring stable power supply and conductivity. When unlocking is required, the unlocking block 3 is moved, which moves the locking block 22 away from the power cavity 10, disengaging the locking block 22 from the locking groove 27 of the battery casing 12. Under the elastic drive of the internal compression spring 13 of the power cavity 10, the battery casing 12 pops out of the power cavity 10, thereby removing the battery. The installation and removal of the power battery 11 can be achieved without tools or screws, making the entire process convenient. When the power battery 11 is low on power, it can be removed for charging, enhancing its practicality.
[0036] In one embodiment, the battery module formed by the battery casing 12 and the power battery 11 is a power bank, and the rated energy value of the lithium-ion battery of the power bank does not exceed 100Wh. The power module of this application can be used in a 20-inch suitcase, which is carry-on luggage, and the power bank complies with civil aviation regulations and can be carried on board, thereby ensuring a stable power supply for the suitcase.
[0037] Specifically, the outer end of the locking block 22 is formed with a stop surface 23 that cooperates with the locking groove 27 and a guide slope 24 that slides with the battery casing 12. The stop surface 23 is formed on the inner side wall of the outer end of the locking block 22, and the guide slope 24 is formed on the outer side wall of the outer end of the locking block 22. Under the elastic action, a portion of the locking block 22 will extend into the power cavity 10. When the power battery 11 is installed, the battery casing 12 will press against the locking block 22. Under the action of the guide slope 24, the locking block 22 will retract a portion, and the locking block 22 will slide with the battery casing 12 until the locking block 22 is laterally aligned with the locking groove 27 of the battery casing 12. At this time, the locking block 22 is embedded in the locking groove 27, and the stop surface 23 of the locking block 22 will cooperate with the locking groove 27. At this time, the locking block 22 cannot retract from the locking groove 27, thereby locking the battery casing 12.
[0038] Furthermore, the elastic locking structure 2 also includes an unlocking seat 21 disposed on the battery bracket 1. The side wall of the unlocking seat 21 is formed with an outer sliding groove 25 for the locking block 22 to slide. The battery bracket 1 is formed with an inner sliding groove 26 that is laterally aligned with the outer sliding groove 25 and allows the locking block 22 to pass through. The outer sliding groove 25 and the inner sliding groove 26 cooperate to form a continuous track for the locking block 22 to slide. This ensures that when the locking groove 27 of the battery casing 12 moves to be laterally aligned with the outer sliding groove 25 and the inner sliding groove 26, the locking groove 27 can be accurately inserted into the locking groove 27 of the battery casing 12, thereby locking the power battery 11.
[0039] Furthermore, the unlocking seat 21 is also equipped with a locking spring 28 that drives the locking block 22 to be elastically inserted into the power chamber 10. The locking spring 28 is a compression spring, and the elastic force of the locking spring 28 can drive the locking block 22 to extend its outer end into the power chamber 10 when there is no other external force.
[0040] Furthermore, the locking block 22 is formed through an unlocking groove 29 for the unlocking block 3 to slide through; when the locking block 22 slides, it will slide and cooperate with the unlocking groove 29 to drive the locking block 22 away from the power cavity 10, thereby unlocking, and the unlocking groove 29 can maintain the connection between the unlocking block 3 and the locking block 22.
[0041] Preferably, the moving direction of the locking block 22 is perpendicular to the moving direction of the unlocking block 3.
[0042] Furthermore, the unlocking block 3 includes a first sliding bar 31 with a first width and a second sliding bar 32 with a second width. The second sliding bar 32 is integrally formed on the outer end of the first sliding bar 32, and an unlocking ramp 33 is formed in the transition area between the first sliding bar 31 and the second sliding bar 32. In the locked state, the unlocking block 3 retracts a portion, and the second sliding bar 32 contacts the unlocking groove 29 of the locking block 22. When unlocking is required, the unlocking block 3 moves towards the inner end of the unlocking seat 21. At this time, the unlocking ramp 33 between the first sliding bar 31 and the second sliding bar 32 will slide and engage with the unlocking groove 29 of the locking block 22, which will cause the locking block 22 to move away from the power cavity 10, that is, the locking block 22 will disengage from the locking groove 27 of the battery casing 12. Under the elastic drive of the internal compression spring 13 of the power cavity 10, the battery casing 12 will pop out of the power cavity 10, thereby realizing the removal of the battery.
[0043] Furthermore, the first width is greater than the second width, and the size of the first width does not exceed the width of the unlocking slot 29; this prevents the unlocking block 3 from being unable to pass through the unlocking slot 29, ensuring that the unlocking block 3 can always slide and cooperate with the unlocking slot 29, thus ensuring the stability of unlocking.
[0044] Furthermore, the unlocking base 21 is provided with a first sliding guide rail 34 for guiding the first sliding bar 31 to slide and a second sliding guide rail 35 for guiding the second sliding bar 32 to slide. The first sliding bar 31 and the second sliding bar 32 move on the corresponding first sliding guide rail 34 and second sliding guide rail 35, and their movement path remains fixed. When the unlocking block 3 moves, the distance that drives the locking block 22 to move can also remain consistent. When unlocking, there will be no large error.
[0045] Furthermore, the outer end of the unlocking seat 21 is formed with an unlocking drive groove 36, and an unlocking pressing block 37 is installed in the unlocking drive groove 36. The unlocking pressing block 37 is connected to the first sliding strip 31. An unlocking compression spring 39 is provided inside the unlocking seat 21 to drive the unlocking seat 21 to elastically approach the unlocking drive groove 36. When the battery is installed, the elastic force of the unlocking compression spring 39 drives the unlocking pressing block 37 to move toward the unlocking drive groove 36, that is, the first sliding strip 31 of the unlocking block 3 cooperates with the locking groove 27 of the locking block 22. At this time, the elastic force of the locking spring 28 can drive the locking block 22 to extend its outer end into the power cavity 10 when it is not subjected to other external forces.
[0046] Preferably, the inner end of the unlocking press block 37 is formed with a limiting block 38 that cooperates with the stop of the unlocking drive groove 36; the limiting block 38 can prevent the unlocking press block 37 from popping out of the unlocking drive groove 36, and can ensure that the unlocking block 3 is always in cooperation with the unlocking groove 29 of the locking block 22.
[0047] Furthermore, an inner conductive block 14 is installed on the inner end wall of the power cavity 10, and multiple conductive contacts 15 are formed on the outer end of the inner conductive block 14. The battery casing 12 is equipped with battery metal contacts 16 that are laterally aligned with the conductive contacts 15. The battery metal contacts 16 are connected to the power supply battery. After the battery casing 12 is installed into the power cavity 10, the inner conductive block 14 of the power cavity 10 contacts the battery metal contacts 16 of the battery casing 12, thereby realizing the power supply connection and enabling power supply to the entire power module.
[0048] Furthermore, a bracket plate 17 is installed on the outer end of the battery bracket 1. The bracket plate 17 is formed with a plug-in groove 18. The openings of the unlocking drive groove 36 and the power cavity 10 are both located in the plug-in groove 18. A cover 19 is hinged to it. After the battery casing 12 is installed, the cover 19 is flipped over. The cover 19 can cover the plug-in groove 18 to reduce dust entry and achieve a dustproof effect.
[0049] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.
[0050] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A power module for a luggage case, comprising a battery holder removably mountable to the luggage case, characterized in that: The battery bracket has a power cavity, on which a power battery is detachably installed. The power battery is fitted with a battery casing, and an internal compression spring is provided inside the power cavity. The internal compression spring can cause the battery casing, on which the power battery is installed, to elastically pop outward. The battery casing has a locking groove, and the battery bracket has an elastic locking structure that engages with the locking groove. The elastic locking structure includes a locking block that can elastically insert into the power cavity and an unlocking block that can move the locking block away from the power cavity.
2. A power module for a luggage case as defined in claim 1, wherein: The elastic locking structure also includes an unlocking seat disposed on the battery bracket. The side wall of the unlocking seat is formed with an outer sliding groove for the locking block to slide, and the battery bracket is formed with an inner sliding groove that is laterally aligned with the outer sliding groove and allows the locking block to pass through.
3. A power module for a luggage case as defined in claim 2, wherein: The outer end of the locking block is formed with a stop surface that cooperates with the locking groove and a guide slope that slides with the battery casing. The stop surface is formed on the inner side wall of the outer end of the locking block, and the guide slope is formed on the outer side wall of the outer end of the locking block.
4. A power module for a luggage item according to claim 3, wherein: The locking block is formed through an unlocking groove for the unlocking block to slide through.
5. A power module for a luggage item according to claim 4, wherein: The unlocking block includes a first sliding bar with a first width and a second sliding bar with a second width. The second sliding bar is integrally formed on the outer end of the first sliding bar, and an unlocking slope is formed in the transition area between the first sliding bar and the second sliding bar.
6. A power module for a luggage item according to claim 5, wherein: The first width is greater than the second width, and the size of the first width does not exceed the width of the unlocking slot; the unlocking seat is provided with a first sliding guide rail for guiding the first sliding bar to slide and a second sliding guide rail for guiding the second sliding bar to slide.
7. A power module for a luggage item according to claim 6, wherein: The outer end of the unlocking seat is formed with an unlocking drive groove, and an unlocking pressing block is installed in the unlocking drive groove. The unlocking pressing block is connected to the first sliding bar, and an unlocking compression spring is provided inside the unlocking seat to drive the unlocking seat to elastically approach the unlocking drive groove.
8. A power module for a luggage item according to claim 7, wherein: The inner end of the unlocking pressing block is formed with a limiting block that cooperates with the stop of the unlocking drive groove.
9. A power module for a luggage case as defined in claim 1, wherein: An inner conductive block is installed on the inner end wall of the power cavity, and multiple conductive contacts are formed on the outer end of the inner conductive block. Battery metal contacts are installed on the battery casing and are laterally aligned with the conductive contacts. The battery metal contacts are connected to the power battery signal.
10. A power module for a luggage case as defined in claim 7, wherein: The battery bracket is fitted with a bracket plate at its outer end. The bracket plate is formed with a plug-in groove. The openings of the unlocking drive groove and the power cavity are both located in the plug-in groove. The plug-in groove is hinged with a cover.