Portable energy storage power supply and connector anti-sparking control method thereof

Abstract

The application discloses a portable energy storage power supply and a connector anti-sparking control method thereof, and relates to the technical field of power supply, in particular to the portable energy storage power supply and the connector anti-sparking control method thereof. The portable energy storage power supply comprises a power supply box, a battery, a blind plug connector, a reed magnetic control switch, a battery cell, a battery protection plate, a MOS discharge switch, a MOS charging switch, a charging socket, an inverter, an alternating current socket and a sheet metal support. The lithium battery of the portable energy storage power supply adopts a detachable mode and structure, the battery and the box body can be separated and carried alone, meanwhile, the box body and the connector can be quickly plugged and unplugged, the portability and usability of the portable energy storage power supply are improved as a whole, and after the connector at the battery end is connected, the connector is electrified after a delay, so that the problem of connector sparking is avoided.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, specifically a portable energy storage power supply and its connector anti-sparking control method. Background Technology

[0002] Portable power storage devices are very useful in scenarios such as outdoor camping, road trips, outdoor fishing, outdoor office work, outdoor live streaming, home emergency response, vehicle emergency response, medical equipment, and rescue and construction, and can power a wide variety of electronic devices and tools.

[0003] Existing all-in-one power bank products have the following technical problems: 1. Existing high-capacity all-in-one power banks are too heavy, non-detachable, and inconvenient to carry; 2. The traditional connector between the battery and the power supply box is an Anderson connector, which cannot be directly plugged into the battery, making connection inconvenient; 3. Plug-in battery energy storage power supplies generally use blind-mating connectors to electrically connect the battery to the electrical components inside the enclosure. The female connector of the battery end of existing plug-in battery energy storage power supplies is always energized. When the battery is inserted into the enclosure, arcing will occur at the moment the two ends of the connector mate, which seriously affects the use of the connector and the safety of the system. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a portable energy storage power supply and its connector anti-sparking control method, which solves the problems of inconvenience in carrying and sparking of blind-mating connectors in the prior art.

[0005] The technical solution adopted by the present invention to solve the above problems is: Includes power supply box, battery, blind-mating connector, reed switch, battery cell, battery protection board, MOS discharge switch, MOS charging switch, charging socket, inverter, AC socket and sheet metal bracket; The power box houses the battery and the box body. The power box includes an upper cover plate, a bottom cover plate, a functional panel, and a door panel. The upper cover plate, the bottom cover plate, the functional panel, and the door panel together form a hollow cuboid structure. The enclosure contains a battery slot for placing batteries, and a groove on the upper part of the enclosure is used to place the inverter. The battery is detachably connected to the housing. The battery consists of a battery cell, a battery protection board, a MOS discharge switch, a MOS charging switch, a charging socket, a reed switch magnetic control switch sensing side, and a blind-fit connector female head. The blind-mating connector consists of a female blind-mating connector head and a male blind-mating connector head. The reed switch magnetic control switch consists of a reed switch magnetic control switch sensing side and a reed switch magnetic control switch permanent magnet side; The positive terminal of the battery cell is electrically connected to the positive terminal of the blind-mating connector input and the positive terminal of the charging socket, and the negative terminal of the battery cell is electrically connected to the source terminal of the MOS discharge switch. The MOS transistor control terminals G1 and G2 of the battery protection board are electrically connected to the gate of the MOS discharge switch and the gate of the MOS charging switch, respectively. The switch signal input terminals K1 and K2 of the battery protection board are electrically connected to the positive and negative terminals output from the sensing side of the reed switch magnetic control switch, respectively. The drain of the MOS discharge switch is electrically connected to the drain of the MOS charging switch. The source of the MOS charging switch is electrically connected to the negative terminal of the blind-mating connector input and the negative terminal of the charging socket. The charging socket is used to charge the battery; The output terminal of the blind-fit connector is electrically connected to the DC output terminal of the inverter. The output terminal of the inverter is electrically connected to an AC socket, and the inverter is used to convert the DC power from the battery into AC power. The AC socket is installed on the function panel for connecting external AC loads; The sheet metal bracket is fixed to the bottom of the box, and the sheet metal bracket has a reed switch magnetic control switch mounting hole and a blind plug connector mounting hole.

[0006] As a preferred technical solution, it also includes a cooling fan for inverter heat dissipation and an external fan cover.

[0007] As a preferred technical solution, the power supply box handle is also attached to the upper cover plate.

[0008] As a preferred technical solution, the power box feet are also attached to the bottom cover plate.

[0009] As a preferred technical solution, it also includes a power display screen, a switch, and a DC socket installed on the function panel.

[0010] As a preferred technical solution, the battery also includes a battery display screen, a handle, a foot pad, a battery carrying handle, and a housing, with mounting holes on the housing for mounting the sensing side of a reed switch magnetic control switch.

[0011] Furthermore, the sensing side of the reed switch is composed of a reed switch and a sensing side housing. The reed switch is composed of a reed, a contact, and a glass tube. The permanent magnet side of the reed switch is composed of a permanent magnet and a magnet side housing. When the permanent magnet side of the reed switch approaches the sensing side of the reed switch, the two reeds deform to make the two contacts contact, and the positive and negative poles of the permanent magnet side of the reed switch are electrically connected together.

[0012] Furthermore, the female connector of the blind-mating connector is installed on the side of the battery casing that is inserted into the housing; the male connector of the blind-mating connector is installed on a sheet metal bracket.

[0013] Furthermore, the sensing side of the reed switch is mounted on the battery casing on the same side as the female head of the blind-plug connector; the permanent magnet side of the reed switch is mounted on a sheet metal bracket inside the housing. When the battery is outside the housing, the switch on the sensing side of the reed switch is in the open state. When the battery is inserted into the housing, the switch on the sensing side of the reed switch closes due to the magnetic force of the permanent magnet side of the reed switch, and transmits the closing signal to the battery protection board.

[0014] The specific process for controlling connector arcing in portable energy storage power supplies, as described above, is as follows: S101. Insert the battery into the power supply box; S102. Does the battery protection board detect whether the reed switch is closed? If so, proceed to S103. S103, the battery protection board performs a delay count; S104. Determine if the battery protection board delay count time t ≥ Xms? Where Xms is the specified delay count time. If yes, proceed to S105. S105, the battery protection board drives the MOS discharge switch to turn on, making the blind connector (5) conductive; S106. Remove the battery from the power supply box; S107. Does the battery protection board detect if the reed switch is open? If so, proceed to S108. S108, the battery protection board drives the MOS discharge switch to disconnect, and the blind connector is de-energized.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The lithium battery of the present invention adopts a detachable design and structure, allowing the battery and the casing to be separated and carried separately. At the same time, the casing and connector have a quick-plug structure, which improves the portability and usability of the portable energy storage power supply. 2. The connector at the battery end of this invention is in a non-energized state when it is not inserted into the housing. When it is inserted into the housing, after the two ends of the connector are connected, the connector is energized after a delay, thereby avoiding the problem of connector arcing. Attached Figure Description

[0016] Figure 1 This is an exploded view of the portable energy storage power supply of the present invention.

[0017] Figure 2 This is an exploded side view of the portable energy storage power supply battery and the front side of the housing of the present invention.

[0018] Figure 3 This is an exploded side view of the portable energy storage power supply battery and the rear end of the housing of the present invention.

[0019] Figure 4 This is an exploded view of the portable energy storage power supply battery and sheet metal bracket connection assembly of the present invention.

[0020] Figure 5 This is a diagram showing the connection relationship between the portable energy storage power supply battery and the sheet metal bracket of the present invention.

[0021] Figure 6 This is a schematic diagram of the portable energy storage power supply battery of the present invention installed inside the casing.

[0022] Figure 7 This is a schematic diagram of the internal structure of the portable energy storage power supply box of the present invention.

[0023] Figure 8 This is a block diagram of the portable energy storage power supply electrical system of the present invention.

[0024] Figure 9 This is a flowchart of the connector anti-sparking control method for the portable energy storage power supply of the present invention.

[0025] The labels and their corresponding names in the attached diagram are as follows: 1. Power supply box; 2. Battery; 3. Box body; 4. Reed switch; 5. Blind-molecular connector; 6. Inverter; 7. AC socket; 8. Sheet metal bracket; 9. Power display screen; 10. Switch; 11. DC socket; 12. Cooling fan; 13. Fan cover; 14. Power supply box handle; 15. Power supply box feet; 41. Reed switch sensor side; 42. Reed switch permanent magnet side; 51. Blind-molecular connector female; 52. Blind-molecular connector male; 101. Top cover; 102. Bottom cover; 103. Function panel; 104. Door panel; 2 01. Battery cell; 202. Battery protection board; 203. MOS discharge switch; 204. MOS charging switch; 205. Charging socket; 206. Battery display screen; 207. Handle; 208. Foot pad; 209. Battery handle; 210. Housing; 211. Mounting hole; 212. 301. Groove; 302. Battery slot; 411. Reed switch; 412. Sensing side housing; 421. Permanent magnet; 422. Magnet side housing; 801. Reed switch magnetic control switch mounting hole; 802. Blind-mating connector mounting hole; 4111. Spring; 4112. Contact; 4113. Glass tube. Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 8As shown, it includes a power supply box 1, a battery 2, a blind-fit connector 5, a reed switch magnetic control 4, a battery cell 201, a battery protection board 202, a MOS discharge switch 203, a MOS charging switch 204, a charging socket 205, an inverter 6, an AC socket 7, and a sheet metal bracket 8. The power box 1 houses the battery 2 and the box body 3. The power box includes an upper cover plate 101, a bottom cover plate 102, a functional panel 103 and a door panel 104. The upper cover plate 101, the bottom cover plate 102, the functional panel 103 and the door panel 104 together form a hollow cuboid structure. The housing 3 contains a battery slot 302 for placing batteries, and the groove 301 on the upper part of the housing 3 is used to place the inverter 6. The battery 2 is detachably connected to the housing 3. The battery 2 consists of a cell 201, a battery protection board 202, a MOS discharge switch 203, a MOS charging switch 204, a charging socket 205, a reed switch magnetic control switch sensing side 41, and a blind-fit connector female head 51. The blind-mating connector 5 consists of a female blind-mating connector 51 and a male blind-mating connector 52. The reed switch 4 is composed of a reed switch sensing side 41 and a reed switch permanent magnet side 42. The positive terminal of the battery cell 201 is electrically connected to the positive terminal of the input terminal of the blind-mating connector 5 and the positive terminal of the charging socket 205, and the negative terminal of the battery cell 201 is electrically connected to the source terminal of the MOS discharge switch 203. The MOS control terminals G1 and G2 of the battery protection board 202 are electrically connected to the gate of the MOS discharge switch 203 and the gate of the MOS charging switch 204, respectively. The switch signal input terminals K1 and K2 of the battery protection board 202 are electrically connected to the positive and negative poles output by the sensing side 41 of the reed switch magnetic control switch, respectively. The drain of the MOS discharge switch 203 is electrically connected to the drain of the MOS charging switch 204; The source of the MOS charging switch 204 is electrically connected to the negative terminal of the input terminal of the blind mating connector 5 and the negative terminal of the charging socket 205. The charging socket 205 is used to charge the battery 2; The output terminal of the blind-mating connector 5 is electrically connected to the DC output terminal of the inverter 6; The output terminal of the inverter 6 is electrically connected to the AC socket 13. The inverter 6 is used to convert the DC power from the battery into AC power. The AC socket 13 is mounted on the function panel 103 and is used to connect an external AC load. The sheet metal bracket 8 is fixed to the bottom of the housing 3. The sheet metal bracket 8 has a reed switch magnetic control switch mounting hole 801 and a blind plug connector mounting hole 802.

[0028] As a preferred technical solution, it also includes a cooling fan 12 for heat dissipation of inverter 6 and an external fan cover 13.

[0029] As a preferred technical solution, it also includes a power box handle 14 connected to the upper cover plate 101.

[0030] As a preferred technical solution, it also includes power box feet 15 connected to the bottom cover plate 102.

[0031] As a preferred technical solution, it also includes a power display screen 9, a switch 10, and a DC socket 11 installed on the function panel 103.

[0032] As a preferred technical solution, the battery 2 also includes a battery display screen 206, a handle 207, a foot pad 208, a battery handle 209, and a housing 210. The mounting holes 211 on the housing 210 are used to install the sensing side 41 of the reed switch magnetic control switch.

[0033] Furthermore, the sensing side 41 of the reed switch is composed of a reed switch 411 and a sensing side housing 412. The reed switch 411 is composed of a reed 4111, a contact 4112, and a glass tube 4113. The permanent magnet side 42 of the reed switch is composed of a permanent magnet 421 and a magnet side housing 422. When the permanent magnet side 42 of the reed switch approaches the sensing side 41 of the reed switch, the two reeds 4111 deform, causing the two contacts 4112 to contact each other, and the positive and negative poles of the permanent magnet side 42 of the reed switch are electrically connected together.

[0034] Furthermore, the female connector 51 of the blind-mating connector is installed on the side of the battery 2 housing that is inserted into the casing; the male connector 52 of the blind-mating connector is installed on the sheet metal bracket 8.

[0035] Furthermore, the sensing side 41 of the reed switch is mounted on the outer casing of the battery 2 on the same side as the female head 51 of the blind-fit connector; the permanent magnet side 42 of the reed switch is mounted on the sheet metal bracket 8 inside the housing 1. When the battery 2 is outside the housing 1, the switch of the sensing side 41 of the reed switch is in the open state. When the battery 2 is inserted into the housing 1, due to the magnetic force of the permanent magnet side 42 of the reed switch, the switch of the sensing side 41 of the reed switch is closed, and the closing signal is transmitted to the battery protection board 202.

[0036] Furthermore, depending on the application and capacity configuration on site, tie rods can be selectively added to the side of the upper cover 101, and casters can be added to the bottom cover 102.

[0037] Figure 9The arcing prevention control process for the connector of the portable energy storage power supply in this invention is as follows: S101. Insert battery 2 into power supply box 1; S102. Does the battery protection board 202 detect whether the reed switch magnetic switch 4 is closed? If so, proceed to S103. S103, Battery Protection Board 202 performs delay counting; S104. Determine if the delay counting time t of the battery protection board 202 is greater than or equal to Xms. Where Xms is the specified delay counting time. If so, proceed to S105. S105, the battery protection board 202 drives the MOS discharge switch 203 to conduct, making the blind-fit connector 5 conductive; S106. Remove battery 2 from power supply box 1; S107. Does the battery protection board 202 detect whether the reed switch magnetic switch 4 is open? If so, proceed to S108. S108, the battery protection board 202 drives the MOS discharge switch 203 to disconnect, and the blind connector 5 is de-energized.

[0038] It should be noted that the term "comprising," or any other variation thereof, is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Of course, the above description is not limited to the examples above. Technical features not described in this application can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this application and are not intended to limit this application. If any substitution is required, this application has only been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this application do not depart from the spirit of this application and should also fall within the scope of protection of the claims of this application.

Claims

1. A portable energy storage power supply, characterized in that, Includes power supply box (1), battery (2), blind plug connector (5), reed switch magnetic control switch (4), battery cell (201), battery protection board (202), MOS discharge switch (203), MOS charging switch (204), charging socket (205), inverter (6), AC socket (7) and sheet metal bracket (8); The power box (1) houses the battery (2) and the box body (3). The power box includes an upper cover plate (101), a bottom cover plate (102), a functional panel (103) and a door panel (104). The upper cover plate (101), the bottom cover plate (102), the functional panel (103) and the door panel (104) together form a hollow cuboid structure. The housing (3) contains a battery slot (302) for placing a battery, and the groove (301) on the upper part of the housing (3) is used to place an inverter (6). The battery (2) is detachably connected to the housing (3). The battery (2) includes a cell (201), a battery protection board (202), a MOS discharge switch (203), a MOS charging switch (204), a charging socket (205), a reed switch magnetic control switch sensing side (41), and a blind-plug connector female head (51). The blind-mating connector (5) consists of a female blind-mating connector head (51) and a male blind-mating connector head (52); The reed switch (4) consists of a reed switch sensing side (41) and a reed switch permanent magnet side (42); The positive terminal of the battery cell (201) is electrically connected to the positive terminal of the input end of the blind-mating connector (5) and the positive terminal of the charging socket (205), and the negative terminal of the battery cell (201) is electrically connected to the source terminal of the MOS discharge switch (203). The MOS control terminals G1 and G2 of the battery protection board (202) are electrically connected to the gate of the MOS discharge switch (203) and the gate of the MOS charging switch (204), respectively. The switch signal input terminals K1 and K2 of the battery protection board (202) are electrically connected to the positive and negative poles output by the sensing side (41) of the reed switch magnetic control switch, respectively. The drain of the MOS discharge switch (203) is electrically connected to the drain of the MOS charge switch (204); The source of the MOS charging switch (204) is electrically connected to the negative terminal of the input terminal of the blind-mating connector (5) and the negative terminal of the charging socket (205); The charging socket (205) is used to charge the battery (2); The output end of the blind-fit connector (5) is electrically connected to the DC input end of the inverter (6); The output terminal of the inverter (6) is electrically connected to the AC socket (7), and the inverter (6) is used to convert the DC power of the battery into AC power. The AC socket (7) is installed on the function panel (103) for connecting external AC loads; The sheet metal bracket (8) is fixed to the bottom of the box (3). The sheet metal bracket (8) has a reed switch magnetic control switch mounting hole (801) and a blind plug connector mounting hole (802).

2. The portable energy storage power supply according to claim 1, characterized in that, It also includes a cooling fan (12) for cooling the inverter (6) and an external fan cover (13).

3. A portable energy storage power supply according to claim 1, characterized in that, It also includes a power box handle (14) connected to the upper cover (101).

4. A portable energy storage power supply according to claim 1, characterized in that, It also includes power box feet (15) connected to the bottom cover plate (102).

5. A portable energy storage power supply according to claim 1, characterized in that, It also includes a power display (9), a switch (10), and a DC socket (11) mounted on the function panel (103).

6. A portable energy storage power supply according to claim 1, characterized in that, The battery (2) also includes a battery display screen (206), a handle (207), a foot pad (208), a battery handle (209), and a housing (210). The mounting holes (211) on the housing (210) are used to install the sensing side (41) of the reed switch magnetic control switch.

7. A portable energy storage power supply according to claim 1, characterized in that, The reed switch magnetic control switch sensing side (41) is composed of a reed switch (411) and a sensing side shell (412). The reed switch (411) is composed of a reed (4111), a contact (4112) and a glass tube (4113). The reed switch magnetic control switch permanent magnet side (42) is composed of a permanent magnet (421) and a magnet side shell (422). When the reed switch magnetic control switch permanent magnet side (42) is close to the reed switch magnetic control switch sensing side (41), the two reeds (4111) deform to make the two contacts (4112) contact each other, and the positive and negative poles of the reed switch magnetic control switch permanent magnet side (42) are electrically connected together.

8. A portable energy storage power supply according to claim 1, characterized in that, The female connector (51) of the blind-fit connector is installed on the side of the battery (2) that is inserted into the housing; the male connector (52) of the blind-fit connector is installed on the sheet metal bracket (8).

9. A portable energy storage power supply according to claim 1, characterized in that, The reed switch sensing side (41) is installed on the outer shell of the battery (2) on the same side as the female head (51) of the blind connector; the reed switch permanent magnet side (42) is installed on the sheet metal bracket (8) inside the housing (3). When the battery (2) is outside the housing (3), the switch of the reed switch sensing side (41) is in the open state. When the battery (2) is inserted into the housing (3), due to the magnetic force of the reed switch permanent magnet side (42), the switch of the reed switch sensing side (41) is closed and the closing signal is transmitted to the battery protection board (202).

10. The anti-sparking control method for the connector of a portable energy storage power supply according to claim 1, characterized in that, Includes the following steps: S101. Insert the battery (2) into the power supply box (1); S102. Does the battery protection board (202) check if the reed switch (4) is closed? If so, execute S103; S103, Battery protection board (202) performs delay counting; S104. Determine whether the delay counting time t of the battery protection board (202) is ≥Xms, where Xms is the specified delay counting time. If yes, then execute S105. S105, the battery protection board (202) drives the MOS discharge switch (203) to turn on, making the blind connector (5) conductive; S106. Remove the battery (2) from the power supply box (1); S107. Does the battery protection board (202) detect whether the reed switch (4) is open? If so, execute S108. S108, the battery protection board (202) drives the MOS discharge switch (203) to open, and the blind connector (5) is de-energized.

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