Method for replacing a battery without powering off a mobile device

Abstract

This invention discloses a method for replacing the battery of a mobile device without turning it off. The method includes a first battery pack, a second battery pack, and a selection circuit. The first and second input terminals of the selection circuit are electrically connected to the first and second battery packs, respectively, and the circuit selects the battery with the higher charge as the load power supply. The method also includes a device housing with a battery mounting track. Part of the battery mounting track has a mounting position, and the first and second input terminals are disposed on the inner wall of the mounting position. The first battery pack is disposed in the mounting position, and its positive terminals are electrically connected to both the first and second input terminals. When the first battery pack's charge decreases and needs replacement, the second battery pack with the higher charge is inserted through the battery mounting track. When the second input terminal of the second battery pack is connected to its positive terminal, the selection circuit selects the second battery pack with the higher charge as the load power supply, thus achieving a battery pack replacement process without power interruption.

Description

Technical Field

[0001] This invention belongs to the field of mobile device accessories, and specifically relates to a method for replacing the battery of a mobile device without turning it off. Background Technology

[0002] Many handheld or outdoor electronic devices require extended operation, and charging with a charger or power bank cannot meet the demands of high efficiency and convenience. Taking handheld devices used in the domestic express delivery industry as an example, delivery personnel are often on the go and don't have time to use chargers, while a single power bank cannot provide sufficient battery life. Therefore, removable battery designs have a certain market in these industries. Traditional removable battery solutions require removing the depleted battery and replacing it with a new one. This process can result in the device shutting down, requiring a waiting period before restarting, and potentially causing some applications or settings to be disabled or reset. Therefore, finding a method to replace the battery in mobile devices without shutting down is crucial to overcome these drawbacks. Summary of the Invention

[0003] To solve at least one of the above-mentioned technical problems, the present invention provides a method for replacing the battery of a mobile device without turning it off, comprising a first battery pack, a second battery pack, and a selection circuit, wherein the first input terminal and the second input terminal of the selection circuit are electrically connected to the first battery pack and the second battery pack respectively, and the one with the higher charge is selected as the power supply for the load; It also includes a device housing, on which a battery mounting slide is provided, and part of the battery mounting slide is provided with a mounting position, with a first input terminal and a second input terminal disposed on the inner wall of the mounting position; The first battery pack is configured in the mounting position, and the positive terminal of the first battery pack is electrically connected to both the first input terminal and the second input terminal. When the first battery pack's power decreases and needs to be replaced, a second battery pack with a higher power is inserted through the battery installation slide. When the second input terminal of the second battery pack is connected to the positive terminal of the second battery pack, the selection circuit selects the second battery pack with a higher power to power the load, thus realizing the process of replacing battery packs without power interruption.

[0004] The outer casing of the aforementioned device can be the casing of a power bank.

[0005] The selection circuit includes a first controller and a second controller. The GATE terminal of the first controller is electrically connected to the gate of a first MOSFET, and the GATE terminal of the second controller is electrically connected to the gate of a second MOSFET. The drains of the first and second MOSFETs are electrically connected and connected to a load. The source of the first MOSFET is connected to the first input terminal, and the source of the second MOSFET is connected to the second input terminal. Both the drain of the first MOSFET and the source of the second MOSFET are grounded through bidirectional trigger diodes. Both the drain of the first MOSFET and the source of the second MOSFET are grounded through a first capacitor. The EN and ANODE terminals of the first and second controllers are respectively connected to the drain of the first MOSFET and the source of the second MOSFET. The VCAP terminals of the first and second controllers are respectively connected to the drain of the first MOSFET and the source of the second MOSFET through second capacitors. The drains of the first and second MOSFETs are electrically connected and grounded through a third capacitor.

[0006] When the second input terminal is disconnected from the positive terminal of the first battery pack, the second input terminal is electrically connected to the second input terminal.

[0007] The two MOSFETs mentioned above are used as switches. When the first and second input terminals are input, the controller detects the magnitude of the two voltages and controls the switching of the MOSFETs, controlling the MOSFET with the larger voltage to turn on. This design also solves the problem of reverse current from two power sources.

[0008] The battery pack has openings on both sides, and the battery pack forms a protrusion between the two openings.

[0009] One method is as follows: a first metal sheet is attached to the notch and the surface of the protrusion, and the first metal sheet is electrically connected to the positive terminals of the first and second battery packs; the structure of the second input terminal includes: a connecting post is electrically connected to the mounting position by a spring, the side of the connecting post near the first input terminal is a first inclined surface, and the side near the entrance of the battery mounting slide is a second inclined surface, and a contact block is integrally formed on the second inclined surface. When the protrusion of the first battery pack is disengaged from the first inclined surface, the contact block is tightly electrically connected to the first metal sheet by the spring force; the structure of the first input terminal includes a first V-shaped spring.

[0010] The second method is as follows: a second metal sheet is attached to the notch and the protruding surface, and the first metal sheet is electrically connected to the positive terminal of the first and second battery packs; the structure of the second input terminal includes: a rotating shaft rotatably connected to the battery mounting slide, and four vertically arranged metal arms are fixed outside the rotating shaft. The first metal arm abuts against the second metal sheet of the first battery pack. When the side wall of the protrusion of the second battery pack just abuts against the second metal arm, the first metal arm is lifted and detached from the second metal sheet of the first battery pack due to the rotation of the rotating shaft; the structure of the first input terminal includes a second V-shaped spring.

[0011] The mounting position has two sidewalls with snap-fit ​​grooves, and V-shaped snap-fits are fixed in the snap-fit ​​grooves. The first battery pack and the second battery pack have two sidewalls with limiting grooves that are adapted to the snap-fit ​​grooves, which can increase the stability of the installation.

[0012] When the first battery pack is about to run out of power, its positive terminal is electrically connected to both the first and second input terminals. When a fully charged second battery pack is inserted, it pushes out of the first battery pack. At this point, the first input terminal is connected to the positive terminal of the first battery pack, while the second input terminal is connected to the positive terminal of the second battery pack. The entire selection circuit then selects the voltage at the second input terminal to power the load. When the first battery pack is completely pushed out, both the first and second input terminals are electrically connected to the positive terminal of the second battery pack, and the V-shaped latch enters the limiting groove, the replacement is complete.

[0013] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure and can realize the replacement of battery packs of mobile devices without power interruption. Attached Figure Description

[0014] Figure 1 This is a circuit diagram of the present invention; Figure 2 This is a cross-sectional schematic diagram of one embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the second embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of the present invention after the second battery pack has been replaced; Figure 5 yes Figure 4 Schematic diagram of the cross-section at point AA; Figure label: 101 First battery pack; 102 Second battery pack; 103 Notch; 104 Protrusion; 201 First metal sheet; 202 Spring; 203 Connecting post; 204 First inclined surface; 205 Second inclined surface; 206 First V-shaped spring sheet; 207 Second metal sheet; 208 Rotary shaft; 209 Metal arm; 210 Second V-shaped spring sheet; 211 Buckle groove; 212 Limiting groove; 213 Contact block; 3. Selection circuit; 301 First input terminal, 302 Second input terminal; 303 First controller, 304 Second controller; 305 First MOSFET; 306 Second MOSFET; 307 Bidirectional trigger diode; 308 First capacitor; 309 Second capacitor; 310 Third capacitor; 311 Load; 4. Device housing; 401. Battery mounting slide. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention will be described in detail below with reference to certain specific embodiments. It should be noted that the following are merely some specific embodiments of the inventive concept, and the specific and direct descriptions of related structures are only for the purpose of facilitating understanding of the present invention; the specific features do not necessarily or directly limit the scope of the present invention.

[0016] Referring to the accompanying drawings, the present invention adopts the following technical solution: a method for replacing the battery of a mobile device without turning it off, comprising a first battery pack 101, a second battery pack 102, and a selection circuit 3. The first input terminal 301 and the second input terminal 302 of the selection circuit 3 are electrically connected to the first battery pack 101 and the second battery pack 102 respectively, and the one with the higher power is selected to supply power to the load 311. It also includes a device housing 4, on which a battery mounting slide 401 is provided, and part of the battery mounting slide 401 is provided with a mounting position, and a first input terminal 301 and a second input terminal 302 are disposed on the inner wall of the mounting position; The first battery pack 101 is configured in the mounting position, and the positive terminal of the first battery pack 101 is electrically connected to the first input terminal 301 and the second input terminal 302. When the first battery pack 101 needs to be replaced due to low power, the second battery pack 102 with high power is inserted through the battery installation slide 401. When the second input terminal 302 near the second battery pack 102 is connected to the positive terminal of the second battery pack 102, the selection circuit 3 selects the second battery pack 102 with higher power to supply power to the load 311, thus realizing the process of replacing the battery pack without power interruption.

[0017] The outer casing 4 of the aforementioned device can be the casing of a power bank.

[0018] The selection circuit 3 includes a first controller 303 and a second controller 304. The gate terminal of the first controller 303 is electrically connected to the gate of the first MOSFET 305, and the gate terminal of the second controller 304 is electrically connected to the gate of the second MOSFET 306. The drains of the first MOSFET 305 and the second MOSFET 306 are electrically connected and connected to the load 311. The source of the first MOSFET 305 is connected to the first input terminal 301, and the source of the second MOSFET 306 is connected to the second input terminal 302. The drains of the first MOSFET 305 and the sources of the second MOSFET 306 are both grounded through a bidirectional trigger diode 307. The drains of the first MOSFET 305 and the sources of the second MOSFET 306 are both grounded through a first capacitor 308. The EN and ANODE terminals of the first controller 303 and the second controller 304 are respectively connected to the drain of the first MOSFET 305 and the source of the second MOSFET 306. The VCAP terminals of the first controller 303 and the second controller 304 are connected to the drain of the first MOSFET 305 and the source of the second MOSFET 306 through the second capacitor 309. The drains of the first MOSFET 305 and the second MOSFET 306 are electrically connected and then grounded through the third capacitor 310.

[0019] When the second input terminal 302 is disconnected from the positive terminal of the first battery pack 101, the second input terminal 302 is electrically connected to the first input terminal 302.

[0020] The two MOSFETs mentioned above are used as switches. When the first input terminal 301 and the second input terminal 302 are input, the controller detects the magnitude of the two voltages and controls the switching of the MOSFETs. The MOSFET with the larger voltage is turned on. This design also solves the problem of reverse current from two power sources.

[0021] The battery pack has openings 103 on both sides, and the battery pack between the two openings 103 forms a protrusion 104.

[0022] One method is as follows: a first metal sheet 201 is attached to the surface of the notch 103 and the protrusion 104, and the first metal sheet 201 is electrically connected to the positive terminal of the first and second battery packs 102; the structure of the second input terminal 302 includes: a connecting post 203 is electrically connected to the mounting position by a spring 202, the connecting post 203 is electrically connected to the second input terminal 302, the side of the connecting post 203 near the first input terminal 301 is a first inclined surface 204, and the side near the entrance of the battery mounting slide 401 is a second inclined surface 205, and a contact block 213 is integrally formed on the second inclined surface 205. When the protrusion 104 of the first battery pack 101 is separated from the first inclined surface 204, the contact block 213 is tightly electrically connected to the first metal sheet 201 by the elastic force of the spring 202; the structure of the first input terminal 301 includes a first V-shaped spring sheet 206.

[0023] The second method is as follows: a second metal sheet 207 is attached to the surface of the notch 103 and the protrusion 104, and the first metal sheet 201 is electrically connected to the positive terminal of the first and second battery packs 102; the structure of the second input terminal 302 includes: a rotating shaft 208 rotatably connected to the battery mounting slide 401, and four vertically arranged metal arms 209 are fixed to the outside of the rotating shaft 208. The first metal arm 209 abuts against the second metal sheet 207 of the first battery pack 101. When the side wall of the protrusion 104 of the second battery pack 102 just abuts against the second metal arm 209, the first metal arm 209 is lifted and disengaged from the second metal sheet 207 of the first battery pack 101 due to the rotation of the rotating shaft 208; the structure of the first input terminal 301 includes a second V-shaped spring 210. The rotating shaft 208 is also made of conductive material. Metal springs can be fixed on both sides of the rotating shaft 208, and then conductive springs are fixed on the inner wall of the groove of the rotating shaft 208. The metal springs and conductive springs are in contact and conduct electricity. The conductive springs are electrically connected to the second input terminal 302 of the selection circuit 3.

[0024] The mounting position has two side walls with snap-fit ​​grooves 211, and V-shaped snap-fits are fixed in the snap-fit ​​grooves 211. The first battery pack 101 and the second battery pack 102 have two side walls with limiting grooves 212 that are adapted to the snap-fit ​​grooves 211, which can increase the stability of the installation.

[0025] When the first battery pack 101 is about to run out of power, its positive terminal is electrically connected to both the first input terminal 301 and the second input terminal 302. When the fully charged second battery pack 102 is inserted, it pushes out of the first battery pack 101. At this time, the first input terminal 301 is connected to the positive terminal of the first battery pack 101, but the second input terminal 302 is connected to the positive terminal of the second battery pack 102. The entire selection circuit 3 then selects the voltage of the second input terminal 302 to power the load 311. When the first battery pack 101 is completely pushed out, both the first input terminal 301 and the second input terminal 302 are electrically connected to the positive terminal of the second battery pack 102, and the V-shaped buckle enters the limiting groove 212, the replacement is completed.

[0026] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure and can realize the replacement of battery packs of mobile devices without power interruption.

[0027] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for replacing the battery of a mobile device without turning it off, characterized in that: Includes a first battery pack (101), a second battery pack (102), and a selection circuit (3). The first input terminal (301) and the second input terminal (302) of the selection circuit (3) are electrically connected to the first battery pack (101) and the second battery pack (102) respectively, and the one with higher power is selected to supply power to the load (311). It also includes a device housing (4), on which a battery mounting slide (401) is provided, and part of the battery mounting slide (401) is provided with a mounting position, and a first input terminal (301) and a second input terminal (302) are disposed on the inner wall of the mounting position; The first battery pack (101) is configured in the mounting position, and the positive terminal of the first battery pack (101) is electrically connected to the first input terminal (301) and the second input terminal (302); When the first battery pack (101) needs to be replaced due to low power, a second battery pack (102) with high power is inserted through the battery installation slide (401). When the second input terminal (302) of the second battery pack (102) is connected to the positive terminal of the second battery pack (102), the selection circuit (3) selects the second battery pack (102) with higher power to supply power to the load (311), thus realizing the process of replacing the battery pack without power interruption.

2. The method for replacing the battery of a mobile device without turning it off, as described in claim 1, is characterized in that: The selection circuit (3) includes a first controller (303) and a second controller (304). The GATE terminal of the first controller (303) is electrically connected to the gate of the first MOS transistor (305), and the GATE terminal of the second controller (304) is electrically connected to the gate of the second MOS transistor (306). The drain of the first MOS transistor (305) and the drain of the second MOS transistor (306) are electrically connected and then connected to the load (311). The source of the first MOSFET (305) is connected to the first input terminal (301), and the source of the second MOSFET (306) is connected to the second input terminal (302).

3. The method for replacing the battery of a mobile device without turning it off, as described in claim 2, is characterized in that: The drain of the first MOSFET (305) and the source of the second MOSFET (306) are both grounded through a bidirectional trigger diode (307).

4. The method for replacing the battery of a mobile device without turning it off, as described in claim 2, is characterized in that: The drain of the first MOSFET (305) and the source of the second MOSFET (306) are both grounded through the first capacitor (308).

5. The method for replacing the battery of a mobile device without turning it off, as described in claim 2, is characterized in that: The EN and ANODE terminals of the first controller (303) and the second controller (304) are respectively connected to the drain of the first MOS transistor (305) and the source of the second MOS transistor (306); And / or, the VCAP terminals of the first controller (303) and the second controller (304) are connected to the drain of the first MOS transistor (305) and the source of the second MOS transistor (306) through the second capacitor (309) respectively.

6. The method for replacing the battery of a mobile device without turning it off, as described in claim 2, is characterized in that: The drains of the first MOSFET (305) and the second MOSFET (306) are electrically connected and then grounded through the third capacitor (310).

7. The method for replacing the battery of a mobile device without turning it off, as described in claim 1, is characterized in that: When the second input terminal (302) is disconnected from the positive terminal of the first battery pack (101), the second input terminal (302) is electrically connected to the second input terminal (302).

8. The method for replacing the battery of a mobile device without turning it off, as described in claim 1, is characterized in that: The battery pack has openings (103) on both sides, and the battery pack between the two openings (103) forms a protrusion (104).

9. The method for replacing the battery of a mobile device without turning it off, as described in claim 8, is characterized in that: The surfaces of the notch (103) and the protrusion (104) are fitted with a first metal sheet (201), which is electrically connected to the positive electrode of the first and second battery packs (102); The structure of the second input terminal (302) includes: a connecting post (203) electrically connected to the mounting position by a spring (202); the side of the connecting post (203) near the first input terminal (301) is a first inclined surface (204), and the side near the entrance of the battery mounting slide (401) is a second inclined surface (205); a contact block (213) is integrally formed on the second inclined surface (205); when the protrusion (104) of the first battery pack (101) is disengaged from the first inclined surface (204), the contact block (213) is tightly electrically connected to the first metal sheet (201) by the elastic force of the spring (202); The structure of the first input terminal (301) includes a first V-shaped spring (206).

10. The method for replacing the battery of a mobile device without turning it off, as described in claim 8, is characterized in that: The surfaces of the notch (103) and the protrusion (104) are fitted with a second metal sheet (207), and the first metal sheet (201) is electrically connected to the positive electrode of the first and second battery packs (102); The structure of the second input terminal (302) includes: a rotating shaft (208) rotatably connected to the battery mounting slide (401), and four vertically arranged metal arms (209) fixed outside the rotating shaft (208). The first metal arm (209) abuts against the second metal plate (207) of the first battery pack (101). When the side wall of the protrusion (104) of the second battery pack (102) just abuts against the second metal arm (209), the first metal arm (209) is lifted and disengaged from the second metal plate (207) of the first battery pack (101) due to the rotation of the rotating shaft (208). The structure of the first input terminal (301) includes a second V-shaped spring (210).

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