GPS control circuit board

Abstract

The utility model provides a GPS control circuit board comprising a GPS module and a standby power supply circuit, the standby power supply circuit is connected with the GPS module, and the GPS module is connected with a main power supply; the standby power supply circuit comprises a charging management chip, a battery pack and a temperature sensing switch, the charging management chip is connected with the main power supply, the charging management chip is connected with the battery pack, and the temperature sensing switch is connected with the charging management chip and the GPS module. The beneficial effects of the utility model are that the standby power supply circuit provided with the battery pack and the temperature sensing switch is matched with the GPS module, so that the technical problem that the GPS positioning function of the existing battery changing cabinet is affected if the whole system breaks down is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery swapping cabinets, in particular to a GPS control circuit board. Background Art

[0002] With the booming development of the two-wheel electric vehicle market, the electric vehicle battery swapping cabinet, as an efficient energy supply solution, is gradually becoming a key technical means to alleviate the "range anxiety". These intelligent battery swapping cabinets adopt advanced Internet of Things technology. Each cabinet not only has a built-in intelligent management system that can realize the rapid replacement of batteries through a mobile phone APP, but also is generally equipped with a GPS module. This design not only enables operators to monitor the specific location of the battery swapping cabinet in real time, optimize the layout strategy, and improve service efficiency, but also facilitates users to quickly find the nearest battery swapping point through the APP and enjoy the convenience of immediate battery swapping.

[0003] However, with technological progress come new challenges. Although most battery swapping cabinets are equipped with complete safety protection measures, such as over-temperature protection, automatic power-off systems, and built-in fire extinguishing devices, to cope with the risk of battery overheating or potential fires, an issue that cannot be ignored is that once a serious overheat or fire occurs inside the battery swapping cabinet due to some reason, it will not only directly threaten the safety of the batteries inside the cabinet, but may also lead to the paralysis of the entire control system. Once the control system fails, not only may the GPS positioning function be affected and unable to accurately report the location of the cabinet, but the emergency alarm mechanism may also be blocked and unable to send warning messages to the operator in a timely manner, thus delaying the rescue time and increasing the disaster losses. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a GPS control circuit board, which solves the technical problem that the GPS positioning function of the existing battery swapping cabinet will be affected if the entire system fails.

[0005] A GPS control circuit board according to an embodiment of the utility model includes a GPS module and a backup power supply circuit. The backup power supply circuit is connected to the GPS module, and the GPS module is connected to a main power supply.

[0006] The backup power supply circuit includes a charging management chip, a battery pack, and a temperature-sensitive switch. The charging management chip is connected to the main power supply, the charging management chip is connected to the battery pack, and the temperature-sensitive switch is connected to the charging management chip and the GPS module.

[0007] The technical principle of the present utility model is as follows: A backup power supply circuit with a battery pack is set to be connected to the GPS module to supply power to the GPS module, ensuring that even after the main power supply is cut off, the battery pack can still supply power to the GPS module to achieve the GPS positioning function. The temperature-sensitive switch is set to provide a prerequisite for the startup of the backup power supply circuit. Only when the temperature is too high, which refers to the temperature that will damage the entire battery replacement cabinet control system, will the backup power supply circuit be connected.

[0008] Compared with the prior art, the present utility model has the following beneficial effects: Through the cooperation of the backup power supply circuit with the battery pack and the temperature-sensitive switch and the GPS module, it solves the technical problem that the GPS positioning function of the existing battery replacement cabinet will be affected if the entire system breaks down.

[0009] Further, the GPS module includes a microcontroller and a transceiver module, a GPS chip set and a memory controlled by the microcontroller. The microcontroller is connected with a power management circuit, and the power management circuit is respectively connected to the main power supply and the backup power supply circuit.

[0010] In its microcontroller, in addition to controlling the operation of the entire GPS module, processing GPS data and communicating with external devices, including alarms.

[0011] Further, the main power supply is also connected with an intermediate relay, and the normally closed switch of the intermediate relay and the temperature-sensitive switch are connected in series between the charging management chip and the power management circuit.

[0012] That is, when the entire control system is normal, the intermediate relay is energized, and the normally closed switch is in the open state. Only when the control system breaks down, the intermediate relay loses power, the normally closed switch is in the closed state, and the charging management chip and the power management circuit will be connected.

[0013] Further, the temperature-sensitive switch is also separately connected with a power-on protection relay, and the normally open switch of the power-on protection relay and the normally closed switch of the intermediate relay are connected in series between the charging management chip and the power management circuit.

[0014] The power-on protection relay is set so that if the temperature-sensitive switch is severely damaged due to overheating, it will not cause the disconnection between the charging management chip and the power management circuit.

[0015] Further, the GPS control circuit board includes a printed circuit board, an aluminum substrate and a silica gel fireproof board arranged in sequence. The GPS module and the backup power supply circuit are both arranged on the printed circuit board.

[0016] The silica gel fireproof board is used to prevent the overheated battery replacement cabinet from damaging the printed circuit board, while the aluminum substrate is used for the heat dissipation of the printed circuit board during normal operation.

[0017] Further, the backup power supply circuit and the power-on protection relay are arranged on the side of the printed circuit board close to the aluminum substrate, and the sensing end of the temperature sensing switch penetrates through the aluminum substrate and is arranged on the side of the silica gel fireproof board away from the aluminum substrate together with the silica gel fireproof board.

[0018] Further, both the GPS module and the intermediate relay are arranged on the side of the printed circuit board away from the aluminum substrate. Description of the Drawings

[0019] Figure 1 It is a circuit layout diagram of the GPS control circuit board according to an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the GPS control circuit board according to an embodiment of the present invention.

[0021] In the above-mentioned drawings: 10. Printed circuit board; 11. Backup power supply circuit; 12. Power-on protection relay; 13. GPS module; 14. Intermediate relay; 20. Aluminum substrate; 30. Silica gel fireproof board; 31. Temperature sensing switch. Detailed Embodiments

[0022] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0023] As Figure 1 shown in the GPS control circuit board, it includes a GPS module and a backup power supply circuit. Among them, the backup power supply circuit is connected to the GPS module, the GPS module is connected to a main power supply, and after the GPS control circuit board is connected to the control system of the battery swapping cabinet, the GPS function is realized.

[0024] The backup power supply circuit includes a charging management chip, a battery pack and a temperature sensing switch. Among them, the charging management chip is connected to the main power supply, the charging management chip is connected to the battery pack, and thus the charging management chip can charge the battery pack through the main power supply. The temperature sensing switch is connected to the charging management chip and the GPS module. When the temperature is too high, it connects the charging management chip and the GPS module, so that the battery pack can supply power to the GPS module.

[0025] The GPS module includes a microcontroller and a transceiver module, a GPS chip set and a memory controlled by the microcontroller. The microcontroller is connected to a power management circuit, and the power management circuit is respectively connected to the main power supply and the backup power supply circuit. The power management circuit is the power supply circuit of the entire GPS module and provides electrical energy for the entire GPS module. The transceiver module is used for signal transmission and reception; while the GPS chip set is responsible for demodulating the received satellite signals, performing digital signal processing, resolving the pseudo-random code and carrier phase in the satellite signals, and calculating three-dimensional position, speed and time information; the memory is used to store algorithms, auxiliary data and temporary calculation data, etc.

[0026] The main power supply is also connected to an intermediate relay. The normally closed switch of the intermediate relay and the temperature-sensitive switch are connected in series between the charging management chip and the power management circuit. When the main power supply is powered on, the intermediate relay is always powered on, and its normally closed switch is always open. It cooperates with the temperature-sensitive switch to ensure that only when the main power supply is powered off and the temperature is too high will the charging management chip and the power management circuit be connected.

[0027] The temperature-sensitive switch is also separately connected to a power-on protection relay. The normally open switch of the power-on protection relay and the normally closed switch of the intermediate relay are connected in series between the charging management chip and the power management circuit.

[0028] As Figure 2 shown, the GPS control circuit board includes a printed circuit board 10, an aluminum substrate 20, and a silica gel fireproof board 30 arranged in sequence. Among them, the backup power supply circuit 11 and the power-on protection relay 12 are arranged on the side of the printed circuit board 10 close to the aluminum substrate 20. The sensing end of the temperature-sensitive switch 31 penetrates the aluminum substrate 20 and the silica gel fireproof board 30 and is arranged on the side of the silica gel fireproof board 30 away from the aluminum substrate 20 to facilitate temperature sensing. The GPS module 13 and the intermediate relay 14 are both arranged on the side of the printed circuit board 10 away from the aluminum substrate 20 to avoid their damage as much as possible.

[0029] The GPS control circuit board of the present application can be arranged at the bottom of the battery swapping cabinet to maximize the avoidance of the influence of heat on the GPS module 13.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A GPS control circuit board, characterized in that: It includes a GPS module and a backup power supply circuit, wherein the backup power supply circuit is connected to the GPS module, and the GPS module is connected to a main power supply; The backup power supply circuit includes a charging management chip, a battery pack and a temperature sensing switch. The charging management chip is connected to the main power supply, the charging management chip is connected to the battery pack, and the temperature sensing switch is connected to the charging management chip and the GPS module.

2. A GPS control circuit board as claimed in claim 1, characterized in that: The GPS module includes a microcontroller and a transceiver module, a GPS chipset and a memory connected and controlled by the microcontroller. The microcontroller is connected to a power management circuit, and the power management circuit is respectively connected to a main power supply and a backup power supply circuit.

3. A GPS control circuit board as claimed in claim 2, characterized in that: The main power supply is also connected to an intermediate relay, and the normally closed switch and the temperature sensing switch of the intermediate relay are connected in series between the charging management chip and the power management circuit.

4. A GPS control circuit board as claimed in claim 3, characterized in that: The temperature sensing switch is also separately connected to a power-on protection relay, and the normally open switch of the power-on protection relay and the normally closed switch of the intermediate relay are connected in series between the charging management chip and the power management circuit.

5. A GPS control circuit board as claimed in claim 4, characterized in that: The GPS control circuit board comprises a printed circuit board, an aluminum base plate and a silica gel fireproof board which are arranged in sequence, and the GPS module and the backup power supply circuit are both arranged on the printed circuit board.

6. A GPS control circuit board as claimed in claim 5, characterized in that: The backup power supply circuit and the power-on protection relay are arranged on the side of the printed circuit board close to the aluminum substrate, and the sensing end of the temperature sensing switch penetrates the aluminum substrate and the silicone fireproof board and is arranged on the side of the silicone fireproof board away from the aluminum substrate.

7. A GPS control circuit board as claimed in claim 5, characterized in that: The GPS module and the intermediate relay are both arranged on a side of the printed circuit board away from the aluminum substrate.

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