Power supply device for trackless rubber-wheeled vehicle and control method thereof

Abstract

The present invention relates to the technical field of trackless transportation equipment for coal mines, and in particular to a power supply device for a trackless rubber-wheeled vehicle and a control method thereof, the device comprising: a mounting base, and N battery packs, a junction box and M sockets arranged on the mounting base, wherein M is not less than N, N≥2, and M≥2; the M sockets are arranged on the junction box, and the N battery packs are connected to the M sockets through the junction box, wherein the N battery packs correspond to the M sockets one by one; for each of the M sockets, if a charging device is connected to the socket, the battery pack corresponding to the socket is charged through the charging device; if a load is connected to the socket, the battery pack corresponding to the socket discharges to the load through the socket. The device simplifies the structure of the power supply device of the trackless rubber-wheeled vehicle, improves the operating efficiency of the power supply device, and the operating efficiency of the trackless rubber-wheeled vehicle is also improved accordingly, and the service life of the battery is also improved.

Description

Technical Field

[0001] The invention relates to the technical field of trackless transport equipment for coal mines, and in particular to a power supply device for a trackless rubber-wheeled vehicle and a control method thereof. Background Art

[0002] At present, the explosion-proof vehicles used in mines in my country are all diesel trackless rubber-tyred vehicles, which have the problems of high pollution, high noise, high fuel consumption and short life. In order to avoid the above problems, a new type of efficient and low-pollution pure electric trackless rubber-tyred transport vehicle has been developed.

[0003] However, restricted by national safety standards, the energy, voltage and electrical interface of the power supply device of existing pure electric rubber-tyred trackless vehicles must meet the requirements in accordance with the standards, resulting in the problem that the design of the existing power supply device is too complicated and the operating efficiency is reduced. Summary of the invention

[0004] The embodiment of the present application solves the technical problems of overly complex design and low operating efficiency of the power supply device of the trackless rubber-tyred vehicle in the prior art by providing a power supply device of the trackless rubber-tyred vehicle and a control method thereof, simplifies the structure of the power supply device of the trackless rubber-tyred vehicle, improves the control strategy of the power supply device, improves the operating efficiency of the power supply device, and improves the operating efficiency of the trackless rubber-tyred vehicle, and also improves the service life of the battery and other technical effects.

[0005] In a first aspect, an embodiment of the present invention provides a power supply device for a trackless rubber-tyred vehicle, comprising:

[0006] A mounting base, and N battery packs, a junction box, and M sockets arranged on the mounting base, wherein M is not less than N, N≥2, and M≥2;

[0007] The M sockets are arranged on the junction box, and the N battery packs are connected to the M sockets through the junction box, wherein the N battery packs correspond to the M sockets one by one;

[0008] For each of the M sockets, if a charging device is connected to the socket, the battery pack corresponding to the socket is charged by the charging device; if a load is connected to the socket, the battery pack corresponding to the socket discharges the load through the socket.

[0009] Preferably, each of the N battery packs includes Z battery boxes, each of the Z battery boxes is connected in series, and Z≥2.

[0010] Preferably, each battery box comprises a battery, a relay, a battery management module, a DC converter and a fuse;

[0011] The battery management module is connected to the relay through a control line package, the first interface of the DC converter and one end of the fuse are both connected to one end of the relay, the other end of the fuse is connected to one end of the battery, and the other end of the battery is connected to the second interface of the DC converter.

[0012] Preferably, if each of the Z battery boxes is connected in series, the device comprises:

[0013] Divide the Z battery boxes into a master battery box and Z-1 slave battery boxes;

[0014] The external control bus interface of the battery management module of the main battery box is connected to the sockets of the battery packs corresponding to the Z battery boxes;

[0015] The internal data bus interface of the battery management module of the master battery box is connected in series with the battery management module of each of the Z-1 slave battery boxes;

[0016] The DC converter of the master battery box is connected in series with the DC converter of each of the Z-1 slave battery boxes;

[0017] The other end of the relay of the main battery box is connected to the socket of the battery pack corresponding to the Z battery boxes;

[0018] The other end of the relay of the first battery box in the Z-1 slave battery boxes is connected to the second interface of the DC converter of the master battery box;

[0019] For each of the Z-1 slave battery boxes except the first battery box, the other end of the relay of the slave battery box is connected to the second interface of the DC converter of a slave battery box.

[0020] Preferably, if the charging device is connected to a socket, the device comprises:

[0021] The first pin of the socket is connected to the positive pole of the DC power supply of the charging device;

[0022] The second pin of the socket is connected to the negative pole of the DC power supply of the charging device;

[0023] The third pin of the socket is grounded;

[0024] The fourth pin of the socket is connected to the charging communication positive interface of the charging device;

[0025] The fifth pin of the socket is connected to the charging communication negative interface of the charging device;

[0026] The sixth pin of the socket is connected to the first determination interface of the charging device, wherein the first determination interface is used to send a confirmation signal sent by the battery pack corresponding to the socket to the charging device;

[0027] The seventh pin of the socket is connected to the second confirmation interface of the charging device, wherein the second confirmation interface is used to send the confirmation signal sent by the charging device to the battery pack corresponding to the socket;

[0028] The eighth pin of the socket is connected to the positive pole of the auxiliary power supply of the charging device;

[0029] The ninth pin of the socket is connected to the negative pole of the auxiliary power supply of the charging device.

[0030] Preferably, if the load is connected to the socket, the device comprises:

[0031] The first pin of the socket is connected to the positive electrode of the DC power supply of the load;

[0032] The second pin of the socket is connected to the negative pole of the DC power supply of the load;

[0033] The third pin of the socket is not communicatively connected with the load;

[0034] The fourth pin of the socket is connected to the charging communication positive interface of the load;

[0035] The fifth pin of the socket is connected to the charging communication negative interface of the load;

[0036] The sixth pin of the socket is connected to the signal interface of the load, wherein the signal interface is used to send the discharge signal sent by the battery pack corresponding to the socket to the load;

[0037] The seventh pin of the socket is not communicatively connected with the load;

[0038] The eighth pin of the socket is connected to the positive pole of the auxiliary power supply of the load;

[0039] The ninth pin of the socket is connected to the negative pole of the auxiliary power supply of the load.

[0040] Based on the same inventive concept, in a second aspect, the present invention further provides a control method for a power supply device of a trackless rubber-tyred vehicle, which is applied to the power supply device of the trackless rubber-tyred vehicle, and the method comprises:

[0041] After the device to be identified is connected to the M sockets, obtaining bus data of the device to be identified;

[0042] If the bus data satisfies the communication protocol in the battery pack corresponding to the device to be identified, obtaining a confirmation signal of the device to be identified;

[0043] If it is determined according to the confirmation signal that the device to be identified is a charging device, and the communication data between the charging device and the corresponding battery pack meets the set requirements, the charging device is controlled to charge the corresponding battery pack.

[0044] Preferably, determining that the device to be identified is a charging device according to the confirmation signal includes:

[0045] If the confirmation signal is a charging signal, controlling the corresponding battery pack to connect to the device to be identified;

[0046] When the corresponding battery pack is connected to the device to be identified, determining whether the corresponding battery pack is connected to the device to be identified;

[0047] If so, the device to be identified is determined to be a charging device.

[0048] Preferably, after obtaining the confirmation signal of the device to be identified, the method further includes:

[0049] If it is determined according to the confirmation signal that the device to be identified is a load, the corresponding battery pack is controlled to discharge the load.

[0050] Preferably, if it is determined according to the confirmation signal that the device to be identified is a load, controlling the corresponding battery pack to discharge the load comprises:

[0051] If the confirmation signal is a non-charging signal, determining the device to be identified as the load, and connecting the corresponding battery pack to the load;

[0052] After the corresponding battery pack is connected to the load, determining whether the corresponding battery pack meets a first set performance, wherein the first set performance is a hardware performance of the corresponding battery pack;

[0053] If yes, detecting the load;

[0054] After detecting the load, determining whether the load meets a second set performance, wherein the second set performance is a hardware performance of the load;

[0055] If so, the corresponding battery pack is controlled to discharge the load.

[0056] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0057] In an embodiment of the present invention, the power supply device includes: a mounting base, and N battery packs, a junction box and M sockets arranged on the mounting base, wherein M is not less than N, N≥2, and M≥2. Here, the mounting base is used to realize the installation and removal of the battery pack, the junction box and the socket, and the installation and removal of the power supply device as a whole are also realized, so as to better maintain the power supply device. The M sockets are arranged on the junction box, and the N battery packs are connected to the M sockets through the junction box, wherein the N battery packs correspond to the M sockets one by one. Here, since one battery pack corresponds to one socket, the charging or discharging of the battery pack corresponding to the socket is realized through the socket, which simplifies the structure of the power supply device, reduces the number of sockets, realizes the socket interface with integrated charging and discharging, facilitates the use of the battery pack, facilitates the operation of the operator, improves the operating efficiency of the power supply device, and increases the user experience. Moreover, for each of the M sockets, if the charging device is connected to the socket, the battery pack corresponding to the socket is charged by the charging device; if the load is connected to the socket, the battery pack corresponding to the socket discharges the load through the socket. Here, each battery pack can be charged or discharged individually through a corresponding socket, which further improves the operating efficiency of the power supply device, the operating efficiency of the rubber-tyred trackless vehicle is also improved, and the service life of the battery is also increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Also, throughout the accompanying drawings, the same reference figures are used to represent the same components. In the drawings:

[0059] Figure 1 A schematic diagram of a module of a power supply device for a rubber-tyred trackless vehicle in an embodiment of the present invention is shown;

[0060] Figure 2 A schematic diagram showing the structure of the power supply device connected to the charging device in an embodiment of the present invention is shown;

[0061] Figure 3 A schematic diagram showing the structure of the power supply device connected to a load in an embodiment of the present invention is shown;

[0062] Figure 4 A schematic diagram of a circuit in which a battery box and battery boxes are connected in series in an embodiment of the present invention is shown;

[0063] Figure 5 A schematic diagram of the structure of a socket during charging in an embodiment of the present invention is shown;

[0064] Figure 6 The schematic diagram of the structure of the socket during discharge in the embodiment of the present invention is shown.

[0065] Figure 7 A schematic flow chart of the steps of a method for controlling a power supply device of a rubber-tyred trackless vehicle in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0066] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0067] Embodiment 1

[0068] The first embodiment of the present invention provides a power supply device for a rubber-tyred trackless vehicle, such as Figure 1 As shown, it includes: a mounting base 110, and N battery packs 120, a junction box 130 and M sockets 140 arranged on the mounting base 110, wherein M is not less than N, N≥2, and M≥2;

[0069] M sockets 140 are disposed on the junction box 130 , and N battery packs 120 are connected to the M sockets 140 through the junction box 130 , wherein the N battery packs 120 correspond to the M sockets 140 one by one;

[0070] For each of the M sockets 140 , if a charging device is connected to the socket 140 , the battery pack corresponding to the socket 140 is charged through the charging device; if a load is connected to the socket 140 , the battery pack corresponding to the socket 140 discharges the load through the socket 140 .

[0071] Specifically, the power supply device of this embodiment forms a compact whole through the mounting base 110, and N battery packs 120, the junction box 130 and the M sockets 140 arranged on the mounting base 110. The mounting base 110, the N battery packs 120, the junction box 130 and the M sockets 140 are all convenient to install or disassemble, so that the whole can be easily installed or disassembled on the rubber-tyred trackless vehicle, which is convenient for operators to operate.

[0072] Among them, one battery pack 120 is connected to one socket 140 through the junction box 130, and then N battery packs 120 correspond to M sockets 140 one by one. For each of the M sockets 140, the battery pack corresponding to the socket 140 can be charged or discharged through the socket 140. Compared with the power supply device of the traditional trackless rubber-wheeled vehicle, in the power supply device of this embodiment, the battery pack corresponding to the socket 140 is charged or discharged through the same socket 140, indicating that the battery pack corresponding to the socket 140 can be charged or discharged separately; while in the traditional power supply device, one battery pack requires two sockets, which are charged through one socket and discharged through the other socket. Therefore, this embodiment simplifies the structure of the power supply device through the socket 140, reduces the number of sockets 140, realizes the socket interface of integrated charging and discharging, facilitates the use of the battery pack 120, facilitates the operation of the operator, improves the operating efficiency of the power supply device, and increases the user experience.

[0073] In addition, in the present power supply device, the battery pack corresponding to the socket 140 can be charged or discharged separately through the socket 140. The specific implementation process is: if the charging device is connected to the target socket among the M sockets 140, and the other sockets among the M sockets 140 except the target socket are not connected to the load, the battery pack corresponding to the target socket is charged by the charging device. If the load is connected to the target socket among the M sockets 140, and the other sockets among the M sockets 140 except the target socket are not connected to the charging device, the battery pack corresponding to the target socket discharges the load through the target socket. If some of the M sockets 140 are connected to the charging device, and some of the sockets are connected to the load, the socket connected to the charging device is charged, and the socket connected to the load does not work. Among them, the load is a trackless rubber-wheeled vehicle, and the present power supply device is used to power the trackless rubber-wheeled vehicle. Each of the M sockets 140 is a nine-core explosion-proof socket that fully complies with the national standard charging function, and it can be quickly plugged in with the explosion-proof plug on the trackless rubber-wheeled vehicle.

[0074] In the present power supply device, each of the N battery packs 120 includes Z battery boxes 121 , and each of the Z battery boxes 121 is connected in series, where Z≧2.

[0075] Specifically, if Figure 2 As shown, when the power supply device is connected to the charging device, battery pack A includes battery box No. 1 and battery box No. 2. In battery pack A, battery box No. 1 and battery box No. 2 are connected in series. Battery pack B includes battery box No. 3 and battery box No. 4. In battery pack B, battery box No. 3 and battery box No. 4 are connected in series. Figure 2In the figure, the battery box of number is marked as battery box number, for example, battery box No. 1 is marked as battery box 1, and the same is also indicated in the subsequent figures. Battery pack A is connected to socket a through the junction box 130, and battery pack B is connected to socket b through the junction box 130. Socket a and socket b are both connected to the charging device, and battery pack A and battery pack B are charged respectively through the charging device.

[0076] like Figure 3 As shown, when the power supply device is connected to the load (the onboard control box of the trackless rubber-wheeled vehicle), the battery pack A includes a No. 1 battery box and a No. 2 battery box. In the battery pack A, the No. 1 battery box and the No. 2 battery box are connected in series. The battery pack B includes a No. 3 battery box and a No. 4 battery box. In the battery pack B, the No. 3 battery box and the No. 4 battery box are connected in series. Figure 3 In the figure, the battery box No. is recorded as battery box No., for example, battery box No. 1 is recorded as battery box 1. Battery pack A is connected to socket a through junction box 130, and battery pack B is connected to socket b through junction box 130. Socket a and socket b are both connected to the vehicle control box through the vehicle junction box, and battery pack A and battery pack B discharge the vehicle control box together.

[0077] Since each battery group 120 includes Z battery boxes 121 , each of the Z battery boxes 121 is connected in series. The following first introduces each battery box 121 group in detail, and then explains the specific series structure between each battery box 121.

[0078] like Figure 4 As shown, each battery box 121 includes a battery, a relay, a battery management module (Battery Management System, BMS), a direct current converter (Direct Current, DC / DC) and a fuse; the battery management module is connected to the relay through a control line package, the first interface of the direct current converter (V+ interface of DC / DC) and one end of the fuse are connected to one end of the relay, the other end of the fuse is connected to one end of the battery, and the other end of the battery is connected to the second interface of the direct current converter (V- interface of DC / DC). And, from Figure 4 It can also be learned that the battery management module of each battery box 121 includes an external control bus interface and an internal data bus interface, and the DC converter also includes a third interface (DC / DC +12V) and a fourth interface (DC / DC -12V).

[0079] In this embodiment, each battery box 121 realizes the charge and discharge closing function of the battery box 121 through a relay, that is, when the relay of the battery box 121 is closed, the battery box 121 can perform a charging operation or a discharging operation, and when the relay of the battery box 121 is disconnected, the battery box 121 does not operate. Therefore, the internal structure of the battery box 121 is simplified, the operating efficiency of the battery box 121 is improved, the operating efficiency of the battery device is further improved, and the service life of the battery is also improved.

[0080] After clearly understanding the internal structure of each battery box 121, the series structure between each battery box 121 in the battery pack 120 is as follows: Z battery boxes 121 are divided into a main battery box and Z-1 slave battery boxes; the external control bus interface of the battery management module of the main battery box is connected to the socket of the battery pack corresponding to the Z battery boxes 121; the internal data bus interface of the battery management module of the main battery box is connected in series with the battery management module of each slave battery box in the Z-1 slave battery boxes; the DC converter of the main battery box is connected in series with the DC converter of each slave battery box in the Z-1 slave battery boxes; the other end of the relay of the main battery box is connected to the socket of the battery pack corresponding to the Z battery boxes 121; the other end of the relay of the first battery box in the Z-1 slave battery boxes is connected to the second interface of the DC converter of the main battery box; for each slave battery box except the first battery box in the Z-1 slave battery boxes, the other end of the relay of the slave battery box is connected to the second interface of the DC converter of the previous slave battery box.

[0081] Specifically, Figure 4 For example, a battery pack includes two battery boxes, namely battery box No. 1 and battery box No. 2. Battery box No. 1 is used as the master battery box, and battery box No. 2 is used as the slave battery box. Battery box No. 1 and battery box No. 2 are connected in series. The external control bus interface of the battery management module of the master battery box is connected to the socket corresponding to the battery pack. The internal data bus interface of the master battery box is connected in series with the internal data bus interface of the battery management module of the slave battery box, as shown in the figure. Figure 4 As shown. The DC converter of the main battery box is connected in series with the DC converter of the slave battery box, specifically: the third interface of the DC converter of the main battery box is connected to the socket corresponding to the battery pack, the fourth interface of the DC converter of the main battery box is connected to the third interface of the DC converter of the slave battery box, and the fourth interface of the DC converter of the slave battery box is connected to the socket corresponding to the battery pack. The other end of the relay of the main battery box is connected to the socket corresponding to the battery pack. The other end of the relay of the slave battery box is connected to the second interface of the DC converter of the main battery box.

[0082] In this embodiment, each battery box 121 in the battery pack 120 is connected in series, which effectively avoids the situation where the auxiliary power output power consumption of the DC converter of the battery box 121 in the battery pack 120 is inconsistent, and maintains the capacity consistency of the battery box 121 in the battery pack 120 under long-term application conditions, so as to improve the operating efficiency and battery life of the power supply device. In addition, the Z battery boxes 121 in the battery pack 120 are divided into a main battery box and Z-1 slave battery boxes. The main battery box not only communicates internal data with the Z-1 slave battery boxes, but also uniformly communicates external data with the sockets corresponding to the battery pack 120, which simplifies the internal structure of each battery box 121 and simplifies the series structure between each battery box 121 in the battery pack 120, further improves the operating efficiency of the battery box 121 and the battery pack 120, and extends the battery life.

[0083] Since each of the M sockets 140 is a nine-core explosion-proof socket that fully complies with national standard charging functions, in order to meet the charging requirements of the charging device and the load discharge application requirements, the pins of the socket 140 are defined differently in charging and discharging applications.

[0084] like Figure 5 As shown, if the charging device is connected to the socket 140, the socket 140 of the power supply device is specifically:

[0085] The first pin 1401 of the socket 140 is connected to the positive pole of the DC power supply of the charging device;

[0086] The second pin 1402 of the socket 140 is connected to the negative pole of the DC power supply of the charging device;

[0087] The third pin 1403 of the socket 140 is grounded;

[0088] The fourth pin 1404 of the socket 140 is connected to the charging communication positive interface of the charging device;

[0089] The fifth pin 1405 of the socket 140 is connected to the charging communication negative interface of the charging device;

[0090] The sixth pin 1406 of the socket 140 is connected to the first confirmation interface of the charging device, wherein the first confirmation interface is used to send the confirmation signal sent by the battery pack corresponding to the socket to the charging device;

[0091] The seventh pin 1407 of the socket 140 is connected to the second confirmation interface of the charging device, wherein the second confirmation interface is used to send the confirmation signal sent by the charging device to the battery pack corresponding to the socket;

[0092] The eighth pin 1408 of the socket 140 is connected to the positive pole of the auxiliary power supply of the charging device;

[0093] The ninth pin 1409 of the socket 140 is connected to the negative pole of the auxiliary power supply of the charging device.

[0094] like Figure 6 As shown, if the load is connected to the socket 140, the socket 140 of the power supply device is specifically:

[0095] The first pin 1401 of the socket 140 is connected to the positive pole of the DC power supply of the load;

[0096] The second pin 1402 of the socket 140 is connected to the negative pole of the DC power supply of the load;

[0097] The third pin 1403 of the socket 140 is not communicatively connected with the load, that is, the third pin 1403 is undefined;

[0098] The fourth pin 1404 of the socket 140 is connected to the charging communication positive interface of the load;

[0099] The fifth pin 1405 of the socket 140 is connected to the negative charging communication interface of the load;

[0100] The sixth pin 1406 of the socket 140 is connected to the signal interface of the load, wherein the signal interface is used to send the discharge signal sent by the battery pack corresponding to the socket to the load;

[0101] The seventh pin 1407 of the socket 140 is not communicatively connected with the load, that is, the seventh pin 1407 is undefined;

[0102] The eighth pin 1408 of the socket 140 is connected to the positive pole of the auxiliary power supply of the load;

[0103] The ninth pin 1409 of the socket 140 is connected to the negative pole of the auxiliary power supply of the load.

[0104] Specifically, Figure 5 The numbers and functional definitions of the nine pins of the socket 140 shown correspond to the meanings of the pins of the socket 140 during charging in Table 1 below. Figure 6 The numbers and functional definitions of the nine pins of the socket 140 shown correspond to the meanings of the pins of the socket 140 during discharge in the following Table 1.

[0105]

[0106] Table 1

[0107] In this embodiment, by defining each pin of the socket 140, the integrated charging and discharging function of the socket 140 is realized, the structure of the power supply device is simplified, the use of the power supply device is facilitated, the operation of the operator is convenient, the operating efficiency of the power supply device is improved, and the user experience is enhanced.

[0108] The specific control process of this power supply device is:

[0109] After the device to be identified is connected to the M sockets 140 , bus data of the device to be identified is obtained.

[0110] After obtaining the bus data, it is necessary to judge the bus data;

[0111] If the bus data does not satisfy the communication protocol in the battery pack corresponding to the device to be identified, that is, the battery management module of the corresponding battery pack detects that the bus data is invalid data, the relay in each battery box in the corresponding battery pack is controlled to be disconnected.

[0112] If the bus data satisfies the communication protocol in the battery pack corresponding to the device to be identified, that is, the battery management module of the corresponding battery pack detects that the bus data is valid data, a confirmation signal of the device to be identified is obtained.

[0113] After obtaining the confirmation signal, it is necessary to judge the confirmation signal;

[0114] If the device to be identified is determined to be a charging device according to the confirmation signal, and the communication data between the charging device and the corresponding battery pack meets the set requirements, the charging device is controlled to charge the corresponding battery pack, that is, the relay of each battery box in the corresponding battery pack is controlled to be closed.

[0115] Specifically, the device to be identified is determined to be a charging device according to the confirmation signal. The specific process is: if the confirmation signal is a charging signal, the corresponding battery pack is controlled to connect with the device to be identified, wherein the charging signal indicates that the battery management module of the corresponding battery pack confirms that the confirmation signal is a valid charging signal, for example Figure 4 The valid signal received by the CC2 interface of the battery management module of battery box No. 1 is shown.

[0116] When the corresponding battery pack is connected to the device to be identified, it is determined whether the corresponding battery pack is connected to the device to be identified; if so, the device to be identified is determined as a charging device; if not, the device to be identified is determined as a load.

[0117] After obtaining the confirmation signal, it is necessary to judge the confirmation signal;

[0118] If it is determined according to the confirmation signal that the device to be identified is a load, the corresponding battery pack is controlled to discharge the load.

[0119] Specifically, if the confirmation signal is a non-charging signal, the device to be identified is determined as a load, and after determining that the device to be identified is a load, the corresponding battery pack is connected to the load; wherein the non-charging signal indicates that the battery management module of the corresponding battery pack confirms that the confirmation signal is an invalid charging signal.

[0120] When the corresponding battery pack is connected to the load, it is determined whether the corresponding battery pack is connected to the load; if so, it indicates that the corresponding battery pack is successfully connected to the load; if not, the relay in each battery box in the corresponding battery pack is controlled to be disconnected.

[0121] After the corresponding battery pack is connected to the load, it is determined whether the corresponding battery pack meets the first set performance, wherein the first set performance is the hardware performance of the corresponding battery pack; if so, the load is detected; if not, the relay in each battery box in the corresponding battery pack is controlled to be disconnected.

[0122] After detecting the load, determine whether the load meets the second set performance, where the second set performance is the hardware performance of the load; if so, control the corresponding battery pack to discharge the load, that is, control the relay of each battery box in the corresponding battery pack to close; if not, control the relay in each battery box in the corresponding battery pack to disconnect.

[0123] When the charging device and the load are connected to the M sockets 140, after the charging device is identified through the above process, the battery pack corresponding to the charging device is charged by the charging device, and no operation is performed on the load identified through the above process. Figure 2 For example, the power supply device includes battery pack A and battery pack B. Battery pack A is connected to the charging device through socket a, and battery pack B is connected to the load through socket b. Through the above process, it is identified that battery pack A is connected to the charging device, and battery pack B is connected to the load. Then, battery pack A is charged through the charging device, and the relay of each battery box in battery pack B is controlled to be disconnected, that is, no operation is performed on the load.

[0124] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0125] In this embodiment, the power supply device includes: a mounting base, and N battery packs, a junction box and M sockets arranged on the mounting base, wherein M is not less than N, N≥2, and M≥2. Here, the mounting base is used to realize the installation and removal of the battery pack, the junction box and the socket, and the installation and removal of the power supply device as a whole are also realized, so as to better maintain the power supply device. The M sockets are arranged on the junction box, and the N battery packs are connected to the M sockets through the junction box, wherein the N battery packs correspond to the M sockets one by one. Here, since one battery pack corresponds to one socket, the charging or discharging of the battery pack corresponding to the socket is realized through the socket, which simplifies the structure of the power supply device, reduces the number of sockets, realizes the socket interface with integrated charging and discharging, facilitates the use of the battery pack, facilitates the operation of the operator, improves the operating efficiency of the power supply device, and increases the user experience. Moreover, for each of the M sockets, if the charging device is connected to the socket, the battery pack corresponding to the socket is charged by the charging device; if the load is connected to the socket, the battery pack corresponding to the socket discharges the load through the socket. Here, each battery pack can be charged or discharged individually through a corresponding socket, which further improves the operating efficiency of the power supply device, the operating efficiency of the rubber-tyred trackless vehicle is also improved, and the service life of the battery is also increased.

[0126] Embodiment 2

[0127] Based on the same inventive concept, the second embodiment of the present invention also provides a control method for a power supply device of a trackless rubber-tyred vehicle, such as Figure 7 As shown, the power supply device applied to the trackless rubber-tyred vehicle as described in the first embodiment includes:

[0128] S201, after the device to be identified is connected to the M sockets, obtaining bus data of the device to be identified;

[0129] S202, if the bus data satisfies the communication protocol in the battery pack corresponding to the device to be identified, obtaining a confirmation signal of the device to be identified;

[0130] S203: If it is determined according to the confirmation signal that the device to be identified is a charging device, and the communication data between the charging device and the corresponding battery pack meets the set requirements, then control the charging device to charge the corresponding battery pack.

[0131] As an optional embodiment, determining that the device to be identified is a charging device according to the confirmation signal includes:

[0132] If the confirmation signal is a charging signal, controlling the corresponding battery pack to connect to the device to be identified;

[0133] When the corresponding battery pack is connected to the device to be identified, determining whether the corresponding battery pack is connected to the device to be identified;

[0134] If so, the device to be identified is determined to be a charging device.

[0135] As an optional embodiment, after obtaining the confirmation signal of the device to be identified, the method further includes:

[0136] If it is determined according to the confirmation signal that the device to be identified is a load, the corresponding battery pack is controlled to discharge the load.

[0137] As an optional embodiment, if it is determined according to the confirmation signal that the device to be identified is a load, controlling the corresponding battery pack to discharge the load includes:

[0138] If the confirmation signal is a non-charging signal, determining the device to be identified as the load, and connecting the corresponding battery pack to the load;

[0139] After the corresponding battery pack is connected to the load, determining whether the corresponding battery pack meets a first set performance, wherein the first set performance is a hardware performance of the corresponding battery pack;

[0140] If yes, detecting the load;

[0141] After detecting the load, determining whether the load meets a second set performance, wherein the second set performance is a hardware performance of the load;

[0142] If so, the corresponding battery pack is controlled to discharge the load.

[0143] Since the control method of the power supply device of the trackless rubber-tyred vehicle introduced in this embodiment is the method adopted by the power supply device of the trackless rubber-tyred vehicle in the first embodiment of the present application, based on the power supply device of the trackless rubber-tyred vehicle introduced in the first embodiment of the present application, the technical personnel of the field can understand the specific implementation method of the power supply device of the trackless rubber-tyred vehicle in this embodiment and its various variations, so how the control method of the power supply device of the trackless rubber-tyred vehicle implements the device in the first embodiment of the present application is not introduced in detail here. As long as the technical personnel of the field implement the method adopted by the power supply device of the trackless rubber-tyred vehicle in the first embodiment of the present application, it belongs to the scope of protection of the present application.

[0144] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0145] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0146] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0147] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0148] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0149] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A power supply device for a trackless rubber-tyred vehicle, characterized in that: include: A mounting base, and N battery packs, a junction box, and M sockets arranged on the mounting base, wherein N≥2, M≥2; The M sockets are arranged on the junction box, and the N battery packs are connected to the M sockets through the junction box, wherein the N battery packs correspond to the M sockets one by one; For each of the M sockets, if a charging device is connected to the socket, the battery pack corresponding to the socket is charged by the charging device; if a load is connected to the socket, the battery pack corresponding to the socket discharges the load through the socket; The battery pack corresponding to the socket is charged or discharged through the same socket; Each of the N battery packs includes Z battery boxes, each of the Z battery boxes is connected in series, and Z ≥ 2; Each battery box includes a battery, a relay, a battery management module, a DC converter and a fuse; The battery management module is connected to the relay through a control line package, the first interface of the DC converter and one end of the fuse are both connected to one end of the relay, the other end of the fuse is connected to one end of the battery, and the other end of the battery is connected to the second interface of the DC converter; If each of the Z battery boxes is connected in series, the device comprises: Divide the Z battery boxes into a master battery box and Z-1 slave battery boxes; The external control bus interface of the battery management module of the main battery box is connected to the sockets of the battery packs corresponding to the Z battery boxes; The internal data bus interface of the battery management module of the master battery box is connected in series with the battery management module of each of the Z-1 slave battery boxes; The DC converter of the master battery box is connected in series with the DC converter of each of the Z-1 slave battery boxes; The other end of the relay of the main battery box is connected to the socket of the battery pack corresponding to the Z battery boxes; The other end of the relay of the first battery box in the Z-1 slave battery boxes is connected to the second interface of the DC converter of the master battery box; For each of the Z-1 slave battery boxes except the first battery box, the other end of the relay of the slave battery box is connected to the second interface of the DC converter of a slave battery box.

2. The device according to claim 1, characterized in that If the charging device is connected to the socket, the device comprises: The first pin of the socket is connected to the positive pole of the DC power supply of the charging device; The second pin of the socket is connected to the negative pole of the DC power supply of the charging device; The third pin of the socket is grounded; The fourth pin of the socket is connected to the charging communication positive interface of the charging device; The fifth pin of the socket is connected to the charging communication negative interface of the charging device; The sixth pin of the socket is connected to the first confirmation interface of the charging device, wherein the first confirmation interface is used to send a confirmation signal sent by the battery pack corresponding to the socket to the charging device; The seventh pin of the socket is connected to the second confirmation interface of the charging device, wherein the second confirmation interface is used to send the confirmation signal sent by the charging device to the battery pack corresponding to the socket; The eighth pin of the socket is connected to the positive pole of the auxiliary power supply of the charging device; The ninth pin of the socket is connected to the negative pole of the auxiliary power supply of the charging device.

3. The device according to claim 1, characterized in that If a load is connected to the socket, the device comprises: The first pin of the socket is connected to the positive electrode of the DC power supply of the load; The second pin of the socket is connected to the negative pole of the DC power supply of the load; The third pin of the socket is not communicatively connected with the load; The fourth pin of the socket is connected to the charging communication positive interface of the load; The fifth pin of the socket is connected to the charging communication negative interface of the load; The sixth pin of the socket is connected to the signal interface of the load, wherein the signal interface is used to send the discharge signal sent by the battery pack corresponding to the socket to the load; The seventh pin of the socket is not communicatively connected with the load; The eighth pin of the socket is connected to the positive pole of the auxiliary power supply of the load; The ninth pin of the socket is connected to the negative pole of the auxiliary power supply of the load.

4. A control method for a power supply device of a trackless rubber-tyred vehicle, characterized in that: The power supply device applied to the trackless rubber-tyred vehicle according to any one of claims 1 to 3, the method comprising: After the device to be identified is connected to the M sockets, obtaining bus data of the device to be identified; If the bus data satisfies the communication protocol in the battery pack corresponding to the device to be identified, obtaining a confirmation signal of the device to be identified; If it is determined according to the confirmation signal that the device to be identified is a charging device, and the communication data between the charging device and the corresponding battery pack meets the set requirements, then controlling the charging device to charge the corresponding battery pack; The step of determining that the device to be identified is a charging device according to the confirmation signal includes: If the confirmation signal is a charging signal, controlling the corresponding battery pack to connect to the device to be identified; When the corresponding battery pack is connected to the device to be identified, determining whether the corresponding battery pack is connected to the device to be identified; If yes, the device to be identified is determined to be a charging device; After obtaining the confirmation signal of the device to be identified, the method further includes: If it is determined according to the confirmation signal that the device to be identified is a load, controlling the corresponding battery pack to discharge the load; If it is determined according to the confirmation signal that the device to be identified is a load, controlling the corresponding battery pack to discharge the load includes: If the confirmation signal is a non-charging signal, determining the device to be identified as the load, and connecting the corresponding battery pack to the load; After the corresponding battery pack is connected to the load, determining whether the corresponding battery pack meets a first set performance, wherein the first set performance is a hardware performance of the corresponding battery pack; If yes, detecting the load; After detecting the load, determining whether the load meets a second set performance, wherein the second set performance is a hardware performance of the load; If so, the corresponding battery pack is controlled to discharge the load.

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