24V starting power supply voltage acquisition device

Abstract

The utility model relates to the technical field of power supply voltage acquisition, and particularly discloses a 24V starting power supply voltage acquisition device, which comprises a circuit board, a microprocessor, a CAN bus circuit and a voltage acquisition circuit, and is characterized in that the microprocessor is a core part of a system and is used for completing data acquisition, data interaction and voltage measurement and calculation of each circuit module in the system; the voltage acquisition circuit acquires voltage signals in real time, the voltage acquisition circuit acquires the voltage signals of a plurality of batteries connected in series through an acquisition chip (LTC6804-1) and then sends the voltage signals to the microprocessor through a communication bus, and the microprocessor converts the voltage information into available data after acquiring the voltage information and sends the available data to the microprocessor. The utility model has the advantages of good integration level and high precision, is specially designed for the safety of the starting power supply, and is helpful for improving the safety and prolonging the service life of the battery of the starting power supply.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply voltage collection, in particular to a 24V starting power supply voltage collection device. Background Art

[0002] As we all know, the battery management system is one of the core components of new energy vehicles. During the use of the battery, there are risks such as over-temperature, over-cooling, over-voltage, under-voltage, over-current, and over-humidity. Once working under the above conditions, its life will drop sharply. Therefore, the battery should monitor its voltage, current, temperature and other parameters in real time during use. Among them, the measurement of voltage is extremely important, because the battery is very easy to be damaged in the state of overcharge and over-discharge, and the voltage is the main basis for judging overcharge and over-discharge and estimating the power. Therefore, in order to ensure the safety of battery use, good performance, and extend the battery life, the battery voltage should be monitored in real time, and the battery working state should be controlled according to the situation.

[0003] Current starting power supplies (such as lead-acid batteries) generally do not have a voltage acquisition function, or the acquisition accuracy is not high and the channels are few. When the battery pack of the starting power supply is composed of multiple batteries connected in series, the voltage of each battery cannot be effectively monitored. In order to solve the above problem, the utility model proposes a voltage acquisition device for a 24V starting power supply, which can accurately collect the voltage of multiple batteries in real time. Utility Model Content

[0004] The purpose of the utility model is to provide a 24V starting power supply voltage acquisition device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a 24V starting power supply voltage acquisition device, comprising a circuit board, a microprocessor, a CAN bus circuit and a voltage acquisition circuit. The microprocessor is the core part of the system, which completes the data acquisition and data interaction of each circuit module in the system, performs voltage measurement and calculation, and sends voltage data to the outside. The voltage acquisition circuit acquires voltage signals in real time. The voltage acquisition circuit acquires voltage signals of multiple series-connected batteries through an acquisition chip (LTC6804-1), and then sends them to the microprocessor through a communication bus. After acquiring the voltage information, the microprocessor converts the voltage information into usable data for sending to an external device. The CAN bus circuit completes the data interaction between the system and the outside world, sends the system status and alarm data to the bus device, and receives the data sent by the device.

[0006] Preferably, the microprocessor collects the voltage of multiple batteries connected in series through a voltage collection circuit, communicates with the device through a CAN bus transceiver, completes data exchange, and sends battery voltage information to achieve the purpose of protecting the battery and extending the battery life.

[0007] Preferably, two protective covers are placed on the surface of the circuit board, and the two protective covers are fixedly connected with adhesive tape on their sides close to each other.

[0008] The effect achieved by the above components is: when two protective covers are put on the two sides of the circuit board, the tapes will contact each other and adhere together under the drive of the protective covers. At this time, the stability between the two protective covers can be initially improved, making it easier for the protective covers to protect the corners of the circuit board, reducing the problem of damage to the corners of the circuit board when it is hit.

[0009] Preferably, the two adhesive tapes are both bonded with release paper on their adjacent sides.

[0010] The effect achieved by the above components is: peeling off the release paper on the tape, thereby facilitating the use of the tape. The setting of the release paper can effectively improve the protection effect of the tape and prevent dust from adhering to the adhesive surface of the tape, which reduces the use effect of the tape.

[0011] Preferably, four screws are threadedly connected to the surface of the protective cover, one end of the screw is fixedly connected to a handle, four limiting holes are opened on the surface of the circuit board, and the screws are connected through the limiting holes on the surface of the circuit board.

[0012] The effect achieved by the above components is: insert the screw into the protective cover and pass through the limit hole on the circuit board. At this time, turn the handle, the handle will drive the screw to rotate, further improving the stability between the two limit plates.

[0013] Preferably, an anti-slip cover is fixedly connected to the surface of the turning handle, and the anti-slip cover is a rubber cover.

[0014] The effect achieved by the above components is that the provision of the anti-slip cover can effectively increase the friction between the fingers and the handlebar, making it easier for the staff to rotate the handlebar.

[0015] Preferably, an inner cover is fixedly connected to the inner wall of the protective cover, and the inner cover is a sponge cover.

[0016] The effect achieved by the above components is: the setting of the inner cover can effectively improve the protection effect of the circuit board and reduce the direct contact between the protective cover and the circuit board, which will cause the circuit board to be squeezed.

[0017] Preferably, an anti-collision pad is fixedly connected to the surface of the protective cover.

[0018] The effect achieved by the above components is: the provision of the anti-collision pad can effectively reduce the impact force received by the protective cover and improve the protection effect on the circuit board.

[0019] Preferably, a plurality of springs are fixedly connected to the inner wall of the anti-collision pad.

[0020] The effect achieved by the above components is that when the anti-collision pad is hit, the spring force can play a certain degree of buffering effect, further improving the protection effect on the circuit board.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model has good integration and high precision, is specially designed for the safety of the starting power supply, and is helpful to improve the safety and service life of the starting power supply battery; at the same time, two protective covers are put on the two sides of the circuit board, and the tapes will contact each other and adhere together under the drive of the protective covers, at this time, the stability between the two protective covers can be preliminarily improved, and then the protective covers can be used to protect the corners of the circuit board conveniently, reducing the problem of damage to the corners of the circuit board when it is hit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0025] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0026] Figure 4 It is a structural schematic diagram of the protective cover in the utility model;

[0027] Figure 5 It is a schematic cross-sectional view of the protective cover in the utility model;

[0028] Figure 6 For the utility model Figure 5 Schematic diagram of the local structure;

[0029] Figure 7 It is a schematic diagram of the structure of the adhesive tape and release paper in the utility model;

[0030] Figure 8 This is a circuit diagram of the utility model.

[0031] In the figure: 1. Circuit board; 2. Microprocessor; 3. CAN bus circuit; 4. Voltage acquisition circuit; 5. Protective cover; 6. Tape; 7. Release paper; 8. Screw; 9. Turning handle; 10. Anti-slip cover; 11. Limiting hole; 12. Inner cover; 13. Anti-collision pad; 14. Spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-7 The utility model provides a technical solution: a 24V starting power supply voltage acquisition device, including a circuit board 1, a microprocessor 2, a CAN bus circuit 3 and a voltage acquisition circuit 4.

[0034] The following is a detailed description of its overall specific settings and functions.

[0035] like Figure 1-Figure 7 As shown, two protective covers 5 are placed on the surface of the circuit board 1, and the two protective covers 5 are fixedly connected with adhesive tape 6 on the sides close to each other. When the two protective covers 5 are put on the two sides of the circuit board 1, the adhesive tape 6 will contact each other and adhere together under the drive of the protective covers 5. At this time, the stability between the two protective covers 5 can be initially improved, so that the protective covers 5 can protect the corners of the circuit board 1 conveniently, reducing the problem of damage to the corners of the circuit board 1 when it is hit. Release paper 7 is glued to the sides of the two tapes 6 close to each other. The release paper 7 on the tape 6 is peeled off, so as to facilitate the use of the tape 6. The setting of the release paper 7 can effectively improve the protection effect of the tape 6 and prevent dust from adhering to the adhesive surface of the tape 6, resulting in a reduction in the use effect of the tape 6. Four screws 8 are threadedly connected to the surface of the protective cover 5, and one end of the screw 8 is fixedly connected to a handle 9. Four limiting holes 11 are opened on the surface of the circuit board 1, and the screws 8 are connected through the limiting holes 11 on the surface of the circuit board 1. The screw rod 8 is inserted into the protective cover 5 and passes through the limiting hole 11 on the circuit board 1. At this time, the handle 9 is turned, and the handle 9 drives the screw rod 8 to rotate, further improving the stability between the two limiting plates. The surface of the handle 9 is fixedly connected with an anti-slip sleeve 10, which is a rubber sleeve. The setting of the anti-slip sleeve 10 can effectively increase the friction between the finger and the handle 9, making it convenient for the staff to rotate the handle 9. The inner wall of the protective cover 5 is fixedly connected with an inner cover 12, which is a sponge cover. The setting of the inner cover 12 can effectively improve the protection effect of the circuit board 1 and reduce the direct contact between the protective cover 5 and the circuit board 1, which will squeeze the circuit board 1. The surface of the protective cover 5 is fixedly connected with an anti-collision pad 13. The setting of the anti-collision pad 13 can effectively reduce the impact force on the protective cover 5 and improve the protection effect of the circuit board 1. The inner wall of the anti-collision pad 13 is fixedly connected with a plurality of springs 14. When the anti-collision pad 13 is hit, the elastic force of the spring 14 can provide a certain degree of buffering effect, further improving the protection effect on the circuit board 1 .

[0036] Working principle: The microprocessor 2 sends instructions to the acquisition chip of the voltage acquisition circuit 4 through the communication bus to start voltage signal acquisition. The microprocessor 2 reads the voltage data of multiple series-connected batteries. According to the voltage data and the current voltage value of each battery, the microprocessor 2 sends the voltage data through the CAN bus circuit 3 to issue a battery safety warning. If necessary, the battery output is cut off to protect the battery and extend the battery life. When the circuit board 1 is carried or used, the release paper 7 on the tape 6 is first peeled off to facilitate the use of the tape 6. The setting of the release paper 7 can effectively improve the protection effect of the tape 6 and avoid dust adhesion on the adhesive surface of the tape 6, resulting in reduced use effect of the tape 6. At this time, the two protective covers 5 are put on both sides of the circuit board 1. The tape 6 will contact each other and adhere together under the drive of the protective cover 5. At this time, the stability between the two protective covers 5 can be preliminarily improved, so that the protective cover 5 can protect the corners of the circuit board 1, reducing the problem of damage to the corners of the circuit board 1 when it is hit. The setting of the inner cover 12 can effectively improve the protection effect of the circuit board 1. , reduce the direct contact between the protective cover 5 and the circuit board 1, which will cause the circuit board 1 to be squeezed. At this time, the screw 8 is inserted into the protective cover 5 and passes through the limiting hole 11 on the circuit board 1. At this time, the handle 9 is turned, and the handle 9 will drive the screw 8 to rotate, further improving the stability between the two limiting plates. The setting of the anti-slip sleeve 10 can effectively increase the friction between the finger and the handle 9, which is convenient for the staff to rotate the handle 9. The setting of the anti-collision pad 13 can effectively reduce the impact force on the protective cover 5 and improve the protection effect on the circuit board 1. When the anti-collision pad 13 is collided, the elastic force of the spring 14 can play a certain degree of buffering effect, further improving the protection effect on the circuit board 1. By setting the protective cover 5, the inner cover 12, the spring 14 and the screw 8, the protection effect on the circuit board 1 is improved, and the problem of damage to the corners of the circuit board 1 when being collided is reduced. It is convenient to disassemble and install the protective cover 5, and the practicality of the voltage acquisition device is further improved. The utility model has good integration and high precision. It is specially designed for the safety of the starting power supply, which helps to improve the safety and service life of the starting power supply battery.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 24V starting power supply voltage acquisition device, characterized in that: The invention comprises a circuit board (1), a microprocessor (2), a CAN bus circuit (3) and a voltage acquisition circuit (4). The microprocessor (2) completes data acquisition and data interaction of various circuit modules in the system, performs voltage measurement and calculation, and sends voltage data to the outside. The voltage acquisition circuit (4) acquires voltage signals in real time. The voltage acquisition circuit (4) acquires voltage signals of multiple series-connected batteries through an acquisition chip and then sends the signals to the microprocessor (2) through a communication bus. After acquiring the voltage information, the microprocessor (2) converts the voltage information into usable data for sending to an external device. The CAN bus circuit (3) completes data interaction between the system and the outside world, sends system status and alarm data to the bus devices, and receives data sent by the devices.

2. A 24V starting power supply voltage acquisition device according to claim 1, characterized in that: The microprocessor (2) collects the voltage of multiple batteries connected in series through a voltage collection circuit (4), communicates with the device through a CAN bus transceiver, completes data exchange, and sends battery voltage information.

3. A 24V starting power supply voltage acquisition device according to claim 1, characterized in that: Two protective covers (5) are placed on the surface of the circuit board (1), and adhesive tapes (6) are fixedly connected to the sides of the two protective covers (5) that are close to each other.

4. A 24V starting power supply voltage acquisition device according to claim 3, characterized in that: The two adhesive tapes (6) are both glued with release paper (7) on their adjacent sides.

5. A 24V starting power supply voltage acquisition device according to claim 3, characterized in that: The surface of the protective cover (5) is threadedly connected with four screw rods (8), one end of the screw rods (8) is fixedly connected with a turning handle (9), the surface of the circuit board (1) is provided with four limiting holes (11), and the screw rods (8) are connected through the limiting holes (11) on the surface of the circuit board (1).

6. A 24V starting power supply voltage acquisition device according to claim 5, characterized in that: An anti-slip cover (10) is fixedly connected to the surface of the turning handle (9), and the anti-slip cover (10) is a rubber cover.

7. A 24V starting power supply voltage acquisition device according to claim 3, characterized in that: An inner cover (12) is fixedly connected to the inner wall of the protective cover (5), and the inner cover (12) is a sponge cover.

8. The 24V starting power supply voltage acquisition device according to claim 3, characterized in that: An anti-collision pad (13) is fixedly connected to the surface of the protective cover (5).

9. A 24V starting power supply voltage acquisition device according to claim 8, characterized in that: A plurality of springs (14) are fixedly connected to the inner wall of the anti-collision pad (13).

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