A series drive box

Abstract

The present invention discloses a series drive box, including a control system, an exit plate mechanism, a drive plate mechanism and a strong electric mechanism; the control system includes a control cage and an auxiliary power supply, and the control cage is connected to the exit plate mechanism and the drive plate mechanism signal; the auxiliary power supply is electrically connected to the control cage, the exit plate mechanism and the drive plate mechanism; the exit plate mechanism includes a plurality of identical and sequentially connected exit plate boxes; the exit plate box is connected in series with the drive plate mechanism; the drive plate mechanism includes several identical drive plate boxes, and a drive plate module is provided in the drive plate box, the drive plate modules are connected in parallel with each other and in series with the exit plate box, and the drive plate modules are electrically connected to the strong electric mechanism by corresponding AC-DC inverters. The present invention has the beneficial effects as follows: standardized components can be formed, and flexible matching and adaptability can be achieved according to the actual needs of the project.

Description

Technical Field

[0001] The invention relates to a series drive box, belonging to the technical field of multi-channel capacity-splitting equipment. Background Art

[0002] Currently available series drive boxes for charging and discharging equipment are essentially composed of a control system, an exit panel assembly, a drive panel assembly, and a high-voltage component. The exit panel assembly is located as close to the battery channel as possible. Typically, the exit panel assembly exhibits an open layout and is relatively scattered throughout a certain area of ​​the entire device. The control system, drive panel assembly, and high-voltage components form a large box structure. Conventional series drive boxes for charging and discharging equipment fail to form standardized component products and lack flexible configuration based on actual project needs. In particular, the exit panel assembly and drive panel assembly require high installation requirements and are cumbersome to disassemble and use. This, to a certain extent, hinders the standardization and universalization of the product. Summary of the Invention

[0003] In order to solve the above problems, the present invention proposes a series drive box that can form standardized components, can be flexibly selected according to the actual needs of the project, and has strong adaptability.

[0004] The technical solution adopted in the present invention is:

[0005] A series drive box, characterized by comprising a control system, an exit plate mechanism, a drive plate mechanism and a strong current mechanism;

[0006] The control system includes a control cage and an auxiliary power supply. The control cage is connected to the ejection plate mechanism and the drive plate mechanism by CAN communication. The control cage uses CAN communication to collect input and output signals from the ejection plate mechanism and the drive plate mechanism to control the charging and discharging functions of the entire process and monitor the equipment status. The auxiliary power supply is electrically connected to the control cage, the ejection plate mechanism, and the drive plate mechanism to provide a stable DC auxiliary power supply for the control cage, the ejection plate mechanism, and the drive plate mechanism.

[0007] The ejection plate mechanism includes a plurality of identical ejection plate boxes connected in series. The ejection plate boxes have a plurality of independent battery channels, which are electrically connected to the multi-channel batteries respectively to realize the charging and discharging functions. The ejection plate boxes are connected in series and electrically connected to the driving plate mechanism.

[0008] The drive plate mechanism includes several identical drive plate boxes, in which drive plate modules are arranged. The number of drive plate boxes is determined by the number of battery channels of the exit plate box. The drive plate modules are connected in parallel with each other and in series with the exit plate box. The drive plate modules are electrically connected to the high-voltage mechanism through corresponding AC-DC inverters.

[0009] Furthermore, the exit plate mechanism includes N identical exit plate boxes connected in series in sequence, and the directions of installation in series are named the first exit plate box, the second exit plate box,..., the Nth exit plate box, wherein the first exit plate box is electrically connected to the control cage, and the Nth exit plate box is electrically connected to the drive plate mechanism; each exit plate box has the same structure.

[0010] Furthermore, the exit plate box includes a support box and an exit plate module, an ITF plate module, and a bottom plate module arranged in the support box. Several slide rails are arranged at intervals in the support box, and the distribution positions of the slide rails are determined according to the distribution positions of the exit plate modules and the ITF plate modules; each exit plate module corresponds to two different battery channels, and the configurations are consistent; each ITF plate module corresponds to two exit plate modules, the exit plate modules and the ITF plate modules are parallel to each other and are respectively plugged into the corresponding slide rails, and the exit plate modules are electrically connected to the control cage or the drive plate mechanism through the corresponding ITF plate modules; the ITF plate module is used to transfer information exchange and power transfer between the exit plate module and the control cage, and between the exit plate module and the drive plate mechanism; the bottom plate module is installed on the support box, and the bottom plate module is electrically connected with the exit plate module and the ITF plate module in the same exit plate box in a plug-in manner; different exit plate boxes and drive plate mechanisms are connected in series through the corresponding bottom plate modules in sequence to form an electrically conductive series circuit; an exit plate fan is provided at the bottom of the support box, and the exit plate fan dissipates heat upward.

[0011] Furthermore, the support box includes an exit plate box bottom plate sheet metal, and slide rail support sheet metals are fixed on both sides of the exit plate box bottom plate sheet metal. Several slide rails are arranged on the slide rail support sheet metal at intervals, and the distribution position of the slide rails is determined according to the distribution position of the exit plate module and the ITF board module; installation handles are respectively installed on the upper and lower sides of the exit plate box bottom plate sheet metal for easy installation, maintenance and use; the exit plate box upper sheet metal is fixed above the exit plate box bottom plate sheet metal, and the exit plate box lower sheet metal is fixed above the exit plate box bottom plate sheet metal; the lower end of the exit plate box bottom plate sheet metal is folded The curved support structure is used to support the exit panel box, facilitating installation and maintenance by one person. Heat dissipation holes are provided on the sheet metal of the exit panel box, while avoiding the current terminals on the bottom panel module. The exit panel fan is installed on the sheet metal of the lower exit panel box, and the exit panel fan dissipates heat upwards. It is used to secure the exit panel fan and ensure that the fan dissipates heat upwards, thereby quickly removing the heat generated by the exit panel box. The exit panel box cover sheet metal is used as the front of the exit panel box with captive screws. The exit panel box cover sheet metal avoids the various current terminals and related components, and the names of the relevant components are silk-screened. For easy maintenance and use, the corresponding box support sheet metal is installed under each exit panel box. Before the exit panel box is completely fixed, the box support sheet metal can support the exit panel box, facilitating operation by the installer.

[0012] Furthermore, the board body of the exit board module is provided with two first negative current terminals, two first positive current terminals 212, four first status indicator lights and one 96-pin connector male head, wherein the first positive current terminal and the first negative current terminal are respectively connected to the positive and negative power lines of the corresponding battery channels; the four first status indicator lights correspond to the charge and discharge status of the two battery channels respectively, wherein the first channel of the exit board module corresponds to two indicator lights, BY1 displays the red light on or off, and CTR1 displays the green light on or off, and the second channel corresponds to two indicator lights, BY2 displays the red light on or off, and CTR2 displays the green light on or off, and the several combination states of the indicator lights correspond to different states of battery charge and discharge; the relevant input and output signals and auxiliary power supply of the exit board module are transmitted by plugging the 96-pin connector male head and the corresponding 96-pin connector female head on the baseboard module, and the baseboard module plays a switching role.

[0013] Furthermore, there are two ITF board modules with the same structure. Each of the ITF board modules is provided with two first power terminals, two first CAN communication terminals, two first IO signal terminals, one dial terminal, three signal indicator lights, one voltage terminal and one 48-pin connector male head; in the first ITF board module of the first exit board box: the No. 1 first power terminal is electrically connected to the auxiliary power supply; the No. 1 first CAN communication terminal is interconnected with the control cage for receiving and transmitting control signals; the IO signal terminal is used to feedback the charge and discharge status information of the ITF board module corresponding to the exit board module; the dial terminal corresponds to the corresponding exit board module one by one, for indicating the address corresponding to the ITF board module; the three signal indicator lights indicate the working status of the ITF board; the voltage terminals are respectively connected to the positive and negative voltage lines of the corresponding battery channels ; The relevant input, output signals and auxiliary power supply of the first ITF board module are transmitted by plugging the 48-pin male connector with the corresponding 48-pin female connector on the baseboard module; at the same time, the No. 2 second power terminal, No. 2 second CAN communication terminal, and No. 2 second IO signal terminal of the first ITF board module are respectively connected to the No. 1 first power terminal, No. 1 first CAN communication terminal, and No. 1 first IO signal terminal of the second ITF board module, and the No. 2 second power terminal, No. 2 second CAN communication terminal, and No. 2 second IO signal terminal of the second ITF board module are respectively connected to the No. 2 second power terminal, No. 2 second CAN communication terminal, and No. 2 second IO signal terminal of the first ITF board module of the second exit board box, and so on, until the power terminals, CNA communication terminals and IOs of N exit board boxes are connected in series with each other.

[0014] Furthermore, the base plate module is provided with a second positive current terminal, a second negative current terminal, a 48-pin male connector and a 96-pin female connector on the plate body. In the first exit plate box: the second positive current terminal of the base plate module is plugged and connected to the third negative current terminal of the first drive plate box, and the second negative current terminal of the base plate module is plugged and connected to the positive current terminal of the base plate module of the second exit plate box; the second negative current terminal of the base plate module of the second exit plate box is plugged and connected to the second positive current terminal of the base plate module of the third exit plate box, and so on, until it is plugged and connected to the positive current terminal of the base plate module of the Nth exit plate box, the second negative current terminal of the base plate module of the Nth exit plate box is plugged and connected to the third positive current terminal of the first drive plate box, and the drive plate mechanism and the exit plate box form a complete series circuit.

[0015] Furthermore, the drive board housing comprises two sets, namely a first drive board housing and a second drive board housing. The first and second drive board housings have the same structure and are secured to each other via side support sheets. The side support sheets are secured to the bottom support sheets, and the bottom support sheets are bent at their lower ends to form a complete drive board assembly. A housing support sheet is installed beneath the drive board housing. Before the assembly is fully secured, the housing support sheet supports the assembly, facilitating installation and maintenance.

[0016] Furthermore, the drive plate box includes a drive plate module, a drive plate reinforcement rib, a drive box cover, a drive box bottom plate and a drive plate fan. The drive box cover and the drive box bottom plate are arranged to form a hollow drive plate box structure, and the drive box cover is the front of the drive plate box; the drive plate module is arranged on the drive box bottom plate, and drive plate reinforcement ribs are provided on both sides of the drive plate module, and the drive plate modules of the two sets of drive plate boxes are connected in parallel to each other, and the drive plate modules and the exit plate boxes are connected in series in sequence to form a series circuit; the drive plate fan is installed at the bottom of the drive box bottom plate, and the drive plate fan blows air upward to ensure that the heat generated by the drive plate module is blown away upward.

[0017] Furthermore, a third positive current terminal, a third negative current terminal, two fourth positive current terminals, two fourth negative current terminals, two third CAN communication terminals, two third IO signal terminals, a third power supply terminal, two first state communication terminals and four third state indicator lights are provided on the board body of the drive board module, wherein the third positive current terminal and the third negative current terminal of the first drive board box are respectively connected to the positive and negative terminals of the corresponding AC-DC inverter to ensure the input and output power of the system; the No. 2 fourth positive current terminal of the first drive board box is coupled with the No. 2 first negative current terminal of the bottom plate module of the first exit board box, the No. 1 fourth negative current terminal of the first drive board box is coupled with the first positive current terminal of the bottom plate module of the fifth exit board box, the No. 2 fourth positive current terminal of the first drive board box is coupled with the No. 2 fourth positive current terminal of the second drive board box, and the No. 2 fourth negative current terminal of the first drive board box is coupled with the No. 2 fourth positive current terminal of the second drive board box The No. 2 fourth negative current terminal of the dynamic plate box is connected in parallel, and the drive plate box and the exit plate box are connected in series to form a series loop relationship; the first drive plate box and the second drive plate box are connected in parallel to form a parallel output relationship; the No. 1 third CAN communication terminal of the first drive plate box is connected in parallel to the control cage, and the No. 2 third CAN communication terminal is connected in parallel to the No. 1 third CAN communication terminal of the second drive plate box, which is used to ensure that the control cage can collect and control the drive plate mechanism; the No. 1 third IO signal terminal of the first drive plate box is connected in parallel to the No. 1 first IO signal terminal of the ITF board module of the second exit plate box to ensure signal communication between the drive plate module and the exit plate module; the third power supply terminal is electrically connected to the auxiliary power supply to receive a DC stable power supply from the auxiliary power supply; the No. 1 first state communication terminal is connected in parallel to the No. 1 first state communication terminal of the second drive plate box, and the two drive plate boxes communicate the charge and discharge status; the four third status indicator lights display that the drive plate boxes are in the charge and discharge status respectively.

[0018] Furthermore, the described high-voltage mechanism includes multiple AC-DC inverters and circuit breaker components. The external high-voltage is electrically connected to the AC-DC inverter through the circuit breaker component, which is used to input high-voltage to the AC-DC inverter. The AC-DC inverter is responsible for inputting and outputting power to the driver board box. The AC-DC inverters correspond one-to-one with the driver board box. The AC-DC inverters are fixed by high-voltage side support sheet metal, which is fixed to the high-voltage bottom support sheet metal. The lower end of the high-voltage bottom support sheet metal is made into a bent support structure. The box support sheet metal is installed under the high-voltage component. Before the high-voltage component is completely fixed, the box support sheet metal can support the high-voltage component, thereby facilitating installation and maintenance.

[0019] The beneficial effects of the present invention are: (1) it has the obvious advantages of standardized design and modular flexible configuration, and is more convenient to install and maintain;

[0020] (2) The exit board box and the drive board box can be flexibly configured according to the actual situation of the project to improve design efficiency. Each exit board box can correspond to 8-channel batteries, and each drive board box can theoretically match 40-channel batteries. The number of exit board boxes and drive board boxes can be increased or decreased according to the actual situation of the project to meet the project needs, without the need to temporarily change the design plan according to the project;

[0021] (3) The exit plate box and the drive plate box have a high degree of freedom in installation. The exit plate assembly consists of 5 completely identical exit plate boxes, and the drive plate assembly consists of 2 completely identical drive plate boxes. The positions of the 5 exit plate boxes and the 2 drive plate boxes can be freely arranged and combined without affecting actual use.

[0022] (4) Both the exit board box and the drive board box adopt modular design. After the standardization of single products is promoted, it will directly improve the production efficiency of the workshop and the assembly efficiency of the whole machine;

[0023] (5) The installation and maintenance plan of the exit plate assembly and the drive plate assembly. The maintenance of the exit plate box can basically be achieved without disassembly. By manually removing the exit plate panel on the whole machine, all the exit plate modules and ITF board modules can be removed through the slide rail for maintenance. During the installation phase, the exit plate assembly and the drive plate assembly can basically meet the needs of a single person to easily install and disassemble, thereby improving the installation and maintenance efficiency.

[0024] (6) The exit board assembly and the drive board assembly are clearly marked with silk screen, which can prevent installation errors on the one hand and remind maintenance personnel of the functions of related components on the other hand, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present invention.

[0026] Figure 2 It is a structural diagram of the control system of the present invention.

[0027] Figure 3 This is one of the schematic diagrams of the exit plate box structure of the present invention.

[0028] Figure 4 This is the second schematic diagram of the exit plate box structure of the present invention.

[0029] Figure 5 2 is a schematic diagram of the exit plate module of the present invention.

[0030] Figure 6 It is a schematic diagram of the ITF board module of the present invention.

[0031] Figure 7 Schematic diagram of the base plate module of the present invention.

[0032] Figure 8 It is a schematic diagram of the driving board box of the present invention.

[0033] Figure 9 Schematic diagram of the driver board module of the present invention.

[0034] Figure 10 It is a schematic diagram of the drive plate mechanism of the present invention.

[0035] Figure 11 It is a schematic diagram of the strong electric mechanism of the present invention.

[0036] Figure 12 It is a schematic diagram of the charge and discharge process of the present invention. Description of the drawings:

[0038] 1. Control system; 2. Exit plate mechanism; 3. Drive plate mechanism; 4. Power mechanism;

[0039] 11. Control cage; 12. Auxiliary power supply;

[0040] 20. Exit board box; 21. Exit board module; 22. ITF board module; 23. Bottom board module;

[0041] 201. Support box; 202. First exit box; 203. Second exit box; 204. Third exit box; 205. Fourth exit box; 206. Fifth exit box;

[0042] 241. Exit panel box bottom plate; 242. Exit panel box cover plate; 243. Exit panel box upper plate; 244. Exit panel box lower plate; 251. Slide rail support plate; 252. Slide rail; 26. Exit panel fan; 27. Mounting handle; 28. Captive screws;

[0043] S1. Power terminal; S2. CAN communication terminal; S3. IO signal terminal; S4. DIP terminal; S5. Status indicator light; S6. Voltage terminal;

[0044] 211. First negative current terminal (compatible with 8mm quick-plug); 212. First positive current terminal (compatible with 8mm quick-plug); 213. First status indicator light; 214. 96-pin male connector;

[0045] 221. First power terminal; 222. First CAN communication terminal; 223. First IO signal terminal; 224. DIP terminal; 225. Signal indicator light; 226. Voltage terminal; 227. 48-pin male connector;

[0046] 231. Second positive current terminal (compatible with 8mm quick plug); 232. Second negative current terminal (compatible with 8mm quick plug); 233. 48-pin female connector; 234. 96-pin female connector;

[0047] 30. Driver board housing; 301. First driver board housing; 302. Second driver board housing; 31. Driver board module; 32. Driver board reinforcement ribs; 33. Driver board housing cover; 34. Driver board housing bottom plate; 35. Driver board fan; 36. Driver board side support sheet metal; 37. Driver board bottom support sheet metal; 38. Housing support sheet metal;

[0048] 311. Third positive current terminal (adapted to 6mm quick plug); 312. Third negative current terminal (adapted to 6mm quick plug); 313. Fourth positive current terminal (adapted to 8mm quick plug); 314. Fourth negative current terminal (adapted to 8mm quick plug); 315. Third status indicator; 316. Third CAN communication terminal; 317. First status communication terminal; 318. Third IO signal terminal; 319. Third power terminal;

[0049] 41. AC-DC inverter; 42. Circuit breaker assembly; 43. High-voltage side support sheet metal; 44. High-voltage bottom support sheet metal. DETAILED DESCRIPTION

[0050] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not used to limit the embodiment of the present invention.

[0051] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0057] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0058] A series drive box includes a control system 1, an exit plate mechanism 2, a drive plate mechanism 3 and a strong current mechanism 4;

[0059] The control system 1 includes a control cage 11 and an auxiliary power supply 12. The control cage 11 is connected to the ejection plate mechanism 2 and the drive plate mechanism 3 by CAN communication. The control cage 11 uses CAN communication to collect input and output signals from the ejection plate mechanism 2 and the drive plate mechanism 3 to control the charging and discharging functions of the entire process and monitor the equipment status. The auxiliary power supply 12 is electrically connected to the control cage 11, the ejection plate mechanism 2, and the drive plate mechanism 3 to provide a stable DC auxiliary power supply for the control cage 11, the ejection plate mechanism 2, and the drive plate mechanism 3.

[0060] The ejection plate mechanism 2 includes a plurality of identical ejection plate boxes 20 connected in series. Each ejection plate box 20 has two independent battery channels, each electrically connected to a multi-channel battery. That is, one ejection plate box can correspond to eight battery channels for realizing the charge and discharge functions. The ejection plate boxes 20 are connected in series and electrically connected to the positive and negative terminals of the drive plate mechanism 3 to form a complete series circuit.

[0061] The drive plate mechanism 3 includes several identical drive plate boxes 30, and a drive plate module 31 is provided in the drive plate box 30. The number of the drive plate boxes 30 is determined by the number of battery channels of the exit plate box 20. The drive plate modules 31 are connected in parallel with each other and in series with the exit plate box 20. The drive plate modules 31 are electrically connected to the high-voltage mechanism 4 through a corresponding AC-DC inverter, so that the drive plate boxes 30 are connected in parallel and a series circuit is formed between the drive plate modules and the exit plate box 20.

[0062] In some embodiments of the present invention, the exit plate mechanism 2 includes five identical exit plate boxes 20 that are connected in series in sequence. The directions of installation in series are named as the first exit plate box 202, the second exit plate box 203, the third exit plate box 204, the fourth exit plate box 205, and the fifth exit plate box 206, wherein the first exit plate box is electrically connected to the control cage, and the fifth exit plate box is electrically connected to the drive plate mechanism; each exit plate box 20 has the same structure.

[0063] In some embodiments of the present invention, the exit plate box 20 includes a support box 201 and an exit plate module 21, an ITF board module 22, and a bottom plate module 23 arranged in the support box. Several slide rails 252 are arranged at intervals in the support box 201. The distribution position of the slide rails 252 is determined according to the distribution position of the exit plate module 21 and the ITF board module 22; each exit plate module 21 corresponds to two different battery channels, and the configurations are consistent; each ITF board module 22 corresponds to two exit plate modules 21, and the exit plate modules 21 and the ITF board modules 22 are parallel to each other and are respectively plugged into the corresponding slide rails 252. The exit plate module 21 is connected to the corresponding battery channel through the support box 201. The corresponding ITF board module 22 is electrically connected to the control cage 11 or the drive board mechanism 3; the ITF board module 22 is used to transfer information exchange and power transfer between the exit board module 21 and the control cage 11, and between the exit board module 21 and the drive board mechanism 3; the bottom plate module 23 is installed on the support box 201, and the bottom plate module 23 is electrically connected with the exit board module 21 and the ITF board module 22 in the same exit board box 20 in a plug-in manner; different exit board boxes 20 and drive board mechanisms 3 are connected in series in sequence through the corresponding bottom plate module 23 to form an electrically conductive series circuit; an exit board fan 26 is provided at the bottom of the support box 201, and the exit board fan 26 dissipates heat upward.

[0064] In some embodiments of the present invention, the support box 201 includes an exit plate box bottom plate sheet metal 241, and slide rail support sheet metal 251 is fixed on both sides of the exit plate box bottom plate sheet metal 241. Several slide rails 252 are arranged on the slide rail support sheet metal 251 at intervals, and the distribution position of the slide rail 252 is determined according to the distribution position of the exit plate module 21 and the ITF board module 22; the upper and lower sides of the exit plate box bottom plate sheet metal 241 are respectively installed with mounting handles 27 for easy installation and maintenance; the upper exit plate box body sheet metal 243 is fixed on the upper side of the exit plate box bottom plate sheet metal 241, and the lower exit plate box body sheet metal 244 is fixed on the lower side of the exit plate box bottom plate sheet metal 241; the lower end of the exit plate box body bottom plate sheet metal 241 is made into a bent support structure for supporting the exit plate box body, which is convenient for single-person installation and maintenance; the exit plate box body sheet metal 243 is provided with a heat dissipation hole, and at the same time, the current terminal on the bottom plate module 23 must be avoided; the exit plate box The exit plate fan 26 is installed on the lower sheet metal 244, and the exit plate fan 26 dissipates heat upward; it is used to fix the exit plate fan and ensure that the fan dissipates heat upward, thereby quickly taking away the heat generated by the exit plate box; the exit plate box cover sheet metal 242 serves as the front of the exit plate box 20, and is installed on the exit plate box bottom plate sheet metal 241 by means of non-loose screws 28. The exit plate box cover sheet metal 242 needs to avoid various current terminals and related components, and the names of various related components are silk-screened. The exit plate box cover sheet metal 242 is printed with power terminal indication S1, CAN communication terminal indication S2, IO signal terminal indication S3, dial terminal indication S4, status indicator light indication S5 and voltage terminal indication S6 for easy maintenance and use. A box support sheet metal is installed accordingly under each exit plate box. Before the exit plate box is completely fixed, the box support sheet metal can support the exit plate box to facilitate operation by the installer.

[0065] In some embodiments of the present invention, the board body of the exit board module 21 is provided with two first negative current terminals 211 (adapted to 8mm quick plug), two first positive current terminals 212 (adapted to 8mm quick plug), four first status indicator lights 213 and a 96-pin connector male head 214, wherein the first positive current terminal 212 and the first negative current terminal 211 are respectively connected to the positive and negative power lines of the corresponding battery channels; the four first status indicator lights 213 correspond to the charge and discharge status of the two battery channels respectively, wherein the exit The first channel of the board module 21 corresponds to two indicator lights, BY1 shows whether the red light is on or off, and CTR1 shows whether the green light is on or off. The second channel corresponds to two indicator lights, BY2 shows whether the red light is on or off, and CTR2 shows whether the green light is on or off. The several combinations of indicator lights correspond to different states of battery charging and discharging. The relevant input and output signals and auxiliary power supply of the exit board module 21 are transmitted by plugging and connecting the 96-pin male connector 214 and the corresponding 96-pin female connector 234 on the baseboard module 23, and the baseboard module acts as a transfer.

[0066] In some embodiments of the present invention, there are two ITF board modules 22 with the same structure. Each of the ITF board modules 22 is provided with two first power terminals 221, two first CAN communication terminals 222, two first IO signal terminals 223, one dial terminal 224, three signal indicator lights 225, one voltage terminal 226 and one 48-pin connector male head 227; for the convenience of distinction, the two first power terminals 221 are respectively named as first power terminal No. 1 and first power terminal No. 2; the two first CAN communication terminals are respectively named as first CAN communication terminal No. 1 and first CAN communication terminal No. 2, and the two first IO signal terminals are respectively named as first IO signal terminal No. 1 and first IO signal terminal No. 2, and so on. In the first ITF board module of the first exit board box: the No. 1 first power supply terminal 221 is electrically connected to the auxiliary power supply, and is used to obtain a DC stable auxiliary power supply; the No. 1 first CAN communication terminal 222 is interconnected with the control cage 11, and is used to receive and transmit control signals; the IO signal terminal is used to feedback the charge and discharge status information of the ITF board module corresponding to the exit board module; the dial terminal 224 corresponds one-to-one with the corresponding exit board module 21, and is used to indicate the address corresponding to the ITF board module; the three signal indicator lights 225 indicate the working status of the ITF board; the voltage terminal 226 is respectively connected to the positive and negative voltage lines of the corresponding battery channel; the relevant input and output signals of the first ITF board module and the auxiliary power supply 12 are connected to the corresponding ones on the baseboard module 23 using the 48-pin connector male head 227. The corresponding 48-pin female connector 233 is plugged in for transmission; at the same time, the No. 2 second power terminal, No. 2 second CAN communication terminal, No. 2 second IO signal terminal of the first ITF board module are respectively connected with the No. 1 first power terminal, No. 1 first CAN communication terminal, No. 1 first IO signal terminal of the second ITF board module, and the No. 2 second power terminal, No. 2 second CAN communication terminal, No. 2 second IO signal terminal of the second ITF board module are respectively connected with the No. 2 second power terminal, No. 2 second CAN communication terminal, No. 2 second IO signal terminal of the first ITF board module of the second exit board box, and so on, until the power terminals, CNA communication terminals and IOs of N exit board boxes are connected in series to ensure information interaction among the 5 exit board boxes.

[0067] In some embodiments of the present invention, the base plate module 23 is provided with a second positive current terminal 231 (adapted to 8mm quick plug), a second negative current terminal 232 (adapted to 8mm quick plug), two 48pin female connectors 233 and four 96pin female connectors 234. In the first exit plate box, the second positive current terminal 231 of the base plate module 23 is plugged into the No. 1 fourth negative current terminal (adapted to 8mm quick plug) of the first drive plate box, and the second negative current terminal 232 of the base plate module 23 is plugged into the base plate of the second exit plate box. The second positive current terminal 231 of the module is plugged in and connected; the second negative current terminal 232 of the bottom plate module of the second exit plate box is plugged in and connected to the second positive current terminal 231 of the bottom plate module of the third exit plate box, and so on, until it is plugged in and connected to the second positive current terminal 231 of the bottom plate module of the fifth exit plate box, and the second negative current terminal 232 of the bottom plate module of the fifth exit plate box is plugged in and connected to the fourth positive current terminal No. 1 313 (compatible with 8mm quick plug) of the first drive plate box, and the drive plate mechanism 3 and the exit plate box form a complete series circuit.

[0068] The installation order of the exit plate box 20 is as follows: the installation handle 27 is installed at the upper and lower ends of the exit plate box bottom plate sheet metal 241, the bottom plate module 23 is installed at the exit plate box bottom plate sheet metal 241, the slide rail 252 is installed on the slide rail support sheet metal 251, the slide rail support sheet metal 251 is installed on both sides of the exit plate box bottom plate sheet metal 241, the exit plate box upper sheet metal 243 is installed above the exit plate box bottom plate sheet metal 241, the exit plate fan 26 is installed on the exit plate box lower sheet metal 244, the exit plate box lower sheet metal 244 is installed below the exit plate box bottom plate sheet metal 241, 4 exit plate modules 21 and 2 ITF boards Module 22 is inserted in sequence through the slide rail 252 according to the corresponding relationship with the battery channel, until the 96-pin male connector 214 of the exit board module 21 and the 96-pin female connector 234 of the bottom board module 23 are plugged into place, and the 48-pin male connector 227 of the ITF board module 22 and the 48-pin female connector 233 of the bottom board module 23 are plugged into place. The exit board box cover sheet metal 242 is installed on the front of the exit board box bottom plate sheet metal 241 as the front of the exit board box, and can be fastened by 4 loose screws 28. At this time, the entire exit board box component has been installed in place. When it is necessary to install the entire machine, first install the box support sheet metal in place, then place the exit board box on the box support sheet metal, ensure that the box support sheet metal can support the exit board box, and then fix the exit board box to the entire machine installation assembly, and connect the relevant components on the exit board box to the corresponding cables in turn to perform the charging and discharging functions.

[0069] The disassembly order of the exit board box is: disconnect and unplug the relevant cables on the exit board box first, loosen the captive screws 28 by hand, remove the exit board box cover sheet metal 242, and then you can pull out the exit board module 21 or ITF board module 22 along the slide rail in turn to perform relevant maintenance. Generally, you only need to remove the exit board module 21 or ITF board module 22 to complete the maintenance work of the exit board box, which greatly facilitates the subsequent maintenance process.

[0070] In some embodiments of the present invention, the drive plate box 30 is provided in two sets, namely a first drive plate box 301 and a second drive plate box 302. The first drive plate box and the second drive plate box have the same structure. The first drive plate box and the second drive plate box are fixed by a drive plate side support sheet metal 36. The drive plate side support sheet metal 36 is fixed to the drive plate bottom support sheet metal 37. The lower end of the drive plate bottom support sheet metal 37 is bent into a support structure to form a complete drive plate assembly. A second box support sheet metal 38 is installed below the drive plate box. Before the drive plate assembly is completely fixed, the box support sheet metal can support the drive plate assembly, thereby facilitating installation and maintenance. Grip handles 39 are installed at the upper and lower ends of the drive plate bottom support sheet metal 37.

[0071] In some embodiments of the present invention, the drive plate box 30 includes a drive plate module 31, a drive plate reinforcement rib 32, a drive plate box cover 33, a drive plate box bottom plate 34 and a drive plate fan 35. The drive plate box cover 33 and the drive plate box bottom plate 34 are arranged to form a hollow drive plate box structure. The drive plate box cover 33 is the front of the drive plate box, thereby ensuring that the drive plate box forms a complete modular product; the drive plate module 31 is arranged on the drive plate box bottom plate 34, and drive plate reinforcement ribs 32 are provided on both sides of the drive plate module 31 to ensure that the drive plate module will not be deformed; the drive plate modules 31 of the two sets of drive plate boxes are connected in parallel to each other, and the drive plate modules 31 and the exit plate box 20 are connected in series in sequence to form a series circuit; the drive plate fan 35 is installed at the bottom of the drive plate box bottom plate 34, and the drive plate fan 35 blows air upward to ensure that the heat generated by the drive plate module is blown away upward.

[0072] In some embodiments of the present invention, the board body of the driving board module 31 is provided with a third positive current terminal 311 (adapted to 6mm quick plug), a third negative current terminal 312 (adapted to 6mm quick plug), two fourth positive current terminals 313 (adapted to 8mm quick plug), two fourth negative current terminals 314 (adapted to 8mm quick plug), two third CAN communication terminals 316, two third IO signal terminals 318, a third power supply terminal 319, two first state communication terminals 317 and four third state indicator lights 315. For the convenience of distinction, the two fourth positive current terminals are named No. 1 fourth positive current terminal and No. 2 fourth positive current terminal, and the two fourth The negative current terminals are marked as the fourth negative current terminal No. 1 and the fourth negative current terminal No. 2; and so on; the third positive current terminal 311 and the third negative current terminal 312 of the first driver board box are respectively connected to the positive and negative terminals of the corresponding AC-DC inverter to ensure the input and output power of the system; the fourth positive current terminal No. 2 of the first driver board box (adapted to 8mm quick plug) is connected to the first negative current terminal No. 2 (adapted to 8mm quick plug) of the bottom plate module of the first exit board box, and the fourth negative current terminal No. 1 of the first driver board box (adapted to 8mm quick plug) is connected to the first positive current terminal 212 of the bottom plate module of the fifth exit board box Couplet, the No. 2 fourth positive current terminal (adapted to 8mm quick plug) of the first driver board box is coupled to the No. 2 fourth positive current terminal (adapted to 8mm quick plug) of the second driver board box, and the No. 2 fourth negative current terminal (adapted to 8mm quick plug) of the first driver board box is coupled to the No. 2 fourth negative current terminal (adapted to 8mm quick plug) of the second driver box, so that the driver board box and the exit board box are connected in series to form a series circuit relationship, and the first driver board box and the second driver board box are connected in parallel to form a parallel output relationship; the No. 1 third CAN communication terminal of the first driver board box is coupled to the control cage 11, and the No. 2 third CAN communication terminal is coupled to the second driver board box. The No. 1 third CAN communication terminal is coupled to ensure that the control cage can collect and control the drive board mechanism; the No. 1 third IO signal terminal of the first drive board box is coupled to the No. 1 first IO signal terminal of the second ITF board module of the second exit board box to ensure signal communication between the drive board module and the exit board module; the third power supply terminal 319 is electrically connected to the auxiliary power supply 12 to receive a DC stable power supply from the auxiliary power supply 12; the No. 1 first state communication terminal is coupled to the No. 1 first state communication terminal of the second drive board box to communicate the charge and discharge status between the two drive board boxes; the four third state indicator lights 315 display the charge and discharge status of the drive board boxes respectively.

[0073] In some embodiments of the present invention, the strong current mechanism 4 includes a plurality of AC-DC inverters 41 and circuit breaker components 42. The external strong current is electrically connected to the AC-DC inverter 41 through the circuit breaker component for inputting strong current into the AC-DC inverter. The AC-DC inverter 41 is responsible for inputting and outputting power to the drive board housing, wherein the AC-DC inverters correspond to the drive board housings one by one. The AC-DC inverter is fixed by a strong current side support sheet metal 43. The strong current side support sheet metal 43 is fixed on the strong current bottom support sheet metal 44. The lower end of the strong current bottom support sheet metal 44 is made into a bent support structure. A third box support sheet metal 46 is installed below the strong current component. Before the strong current component is completely fixed, the box support sheet metal can hold the strong current component, thereby facilitating installation and maintenance. A second handle 45 is installed at the upper and lower ends of the strong current bottom support sheet metal 44.

[0074] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tandem drive box, characterized in that: It comprises a control system (1), an exit plate mechanism (2), a drive plate mechanism (3) and a strong current mechanism (4); The control system (1) includes a control cage (11) and an auxiliary power supply (12). The control cage (11) is electrically connected or signal-connected to the exit plate mechanism (2) and the drive plate mechanism (3) by using a CAN communication method. The control cage (11) collects input and output signals of the exit plate mechanism (2) and the drive plate mechanism (3) by using the CAN communication method to control the charging and discharging functions of the entire process and monitor the equipment status. The auxiliary power supply (12) is electrically connected to the control cage (11), the exit plate mechanism (2), and the drive plate mechanism (3) to provide a stable DC auxiliary power supply for the control cage (11), the exit plate mechanism (2), and the drive plate mechanism (3). The exit plate mechanism (2) includes a plurality of identical and sequentially connected exit plate boxes (20), the exit plate boxes (20) having a plurality of independent battery channels, each electrically connected to a multi-channel battery, for realizing a charge and discharge function; the exit plate boxes (20) are connected in series with each other and electrically connected to a driving plate mechanism (3); the exit plate box (20) includes a support box (201) and an exit plate module (21), an ITF board module (22), and a bottom plate module (23) arranged in the support box; the ITF board modules (22) are two in total, with the same structure, and the plate of each of the ITF board modules (22) is The body is provided with two first power terminals (221), two first CAN communication terminals (222), two first IO signal terminals (223), one dial terminal (224), three signal indicator lights (225), one voltage terminal (226) and one 48-pin connector male head (227); in the first ITF board module of the first exit board box: the No. 1 first power terminal is electrically connected to the auxiliary power supply; the No. 1 first CAN communication terminal is interconnected with the control cage (11) for receiving and transmitting control signals; the IO signal terminal is used to feedback the ITF board module to the exit board module Charge and discharge status information; the dial terminal (224) corresponds to the corresponding exit board module (21) one by one, and is used to indicate the address corresponding to the ITF board module; three signal indicator lights (225) indicate the working status of the ITF board; the voltage terminal (226) is respectively connected to the positive and negative voltage lines of the corresponding battery channel; the relevant input and output signals and auxiliary power supply (12) of the first ITF board module are connected to the corresponding 48-pin connector male head (227) and the corresponding 48-pin connector female head (233) on the bottom board module (23) for transmission; at the same time, the No. 2 second power supply terminal of the first ITF board module , No. 2 second CAN communication terminal, No. 2 second IO signal terminal are respectively connected to the No. 1 first power terminal, No. 1 first CAN communication terminal, No. 1 first IO signal terminal of the second ITF board module; the No. 2 second power terminal, No. 2 second CAN communication terminal, No. 2 second IO signal terminal of the second ITF board module are respectively connected to the No. 2 second power terminal, No. 2 second CAN communication terminal, No. 2 second IO signal terminal of the first ITF board module of the second exit board box; and so on, until the power terminals, CNA communication terminals and IOs of N exit board boxes are connected in series with each other; The driving plate mechanism (3) includes a plurality of identical driving plate boxes (30), wherein a driving plate module (31) is provided in the driving plate box (30), wherein the driving plate modules (31) are connected in parallel with each other, and are connected in series with the exit plate box (20), and wherein the driving plate modules (31) are electrically connected to the strong electric mechanism (4) via corresponding AC-DC inverters; The driving board module (31) is provided with a third positive current terminal (311), a third negative current terminal (312), two fourth positive current terminals (313), two fourth negative current terminals (314), two third CAN communication terminals (316), two third IO signal terminals (318), a third power supply terminal (319), two first state communication terminals (317) and four third state indicator lights (315), wherein the third positive current terminal (311) and the third negative current terminal (312) of the first driving board box are (312) are respectively connected to the positive and negative terminals of the corresponding AC-DC inverter to ensure the input and output power of the system; the No. 2 fourth positive current terminal of the first drive board box is connected to the No. 2 first negative current terminal of the bottom plate module of the first exit board box, the No. 1 fourth negative current terminal of the first drive board box is connected to the first positive current terminal (212) of the bottom plate module of the fifth exit board box, the No. 2 fourth positive current terminal of the first drive board box is connected to the No. 2 fourth positive current terminal of the second drive board box, the No. 1 fourth negative current terminal of the first drive board box is connected to the No. 2 fourth positive current terminal of the second drive board box, the No. 1 fourth negative current terminal of the first drive board box is connected to the No. 1 fourth positive current terminal of the second drive board box, the No. 1 fourth positive current terminal of the first drive board box is connected to the No. 1 ... The fourth negative current terminal No. 2 of the moving plate box is connected to the fourth negative current terminal No. 2 of the second driving plate box, and the driving plate box is connected in series with the exit plate box to form a series loop relationship; the first driving plate box is connected in parallel with the second driving plate box to form a parallel output relationship; the third CAN communication terminal No. 1 of the first driving plate box is connected to the control cage (11), and the third CAN communication terminal No. 2 is connected to the third CAN communication terminal No. 1 of the second driving plate box to ensure that the control cage can collect and control the driving plate mechanism; the first driving plate box The third IO signal terminal No. 1 of the ITF board module of the second exit board box is coupled to the first IO signal terminal No. 1 of the ITF board module, ensuring that the drive board module and the exit board module communicate signals with each other; the third power supply terminal (319) is electrically connected to the auxiliary power supply (12) and is used to receive a DC stable power supply from the auxiliary power supply (12); the first state communication terminal No. 1 is coupled to the first state communication terminal No. 1 of the second drive board box, and the two drive board boxes communicate the charge and discharge status; the four third state indicator lights (315) display the charge and discharge status of the drive board boxes.

2. A tandem drive box according to claim 1, characterized in that: The exit plate mechanism (2) includes N identical exit plate boxes (20) connected in series, and the directions of installation in series are named the first exit plate box, the second exit plate box, ..., the Nth exit plate box, wherein the first exit plate box is electrically connected to the control cage, and the Nth exit plate box is electrically connected to the drive plate mechanism, and N is a positive integer; each exit plate box (20) has the same structure; a plurality of slide rails (252) are arranged at intervals in the support box (201), and the distribution position of the slide rails (252) is determined according to the distribution position of the exit plate module (21) and the ITF board module (22); each exit plate module (21) corresponds to two different battery channels, and the configurations are consistent; each ITF board module (22) corresponds to two exit plate modules The module (21) comprises an exit plate module (21) and an ITF plate module (22) which are parallel to each other and respectively plugged into corresponding slide rails (252). The exit plate module (21) is electrically connected to the control cage (11) or the drive plate mechanism (3) through the corresponding ITF plate module (22). The bottom plate module (23) is installed on the support box (201). The bottom plate module (23) is electrically connected to the exit plate module (21) and the ITF plate module (22) in the same exit plate box (20) in a plug-in manner. Different exit plate boxes (20) and drive plate mechanisms (3) are sequentially connected in series through the corresponding bottom plate module (23) to form an electrically conductive series circuit. An exit plate fan (26) is provided at the bottom of the support box (201), and the exit plate fan (26) dissipates heat upward.

3. A tandem drive box according to claim 2, characterized in that: The support box (201) includes an exit plate box bottom plate sheet metal (241), and slide rail support sheet metals (251) are fixed on both sides of the exit plate box bottom plate sheet metal (241). Several slide rails (252) are arranged on the slide rail support sheet metal (251) at intervals, and the distribution position of the slide rails (252) is determined according to the distribution position of the exit plate module (21) and the ITF board module (22); the upper and lower sides of the exit plate box bottom plate sheet metal (241) are respectively installed with mounting handles (27); the upper side of the exit plate box bottom plate sheet metal (241) is fixed with an exit plate box upper sheet metal (243), and the exit plate box bottom plate sheet metal (24 1) is fixed to the lower side of the exit plate box body lower sheet metal (244); the lower end of the exit plate box body bottom plate sheet metal (241) is made into a bent support structure; the exit plate box body upper sheet metal (243) is provided with a heat dissipation hole, while avoiding the current terminal on the bottom plate module (23); the exit plate fan (26) is installed on the exit plate box body lower sheet metal (244), and the exit plate fan (26) dissipates heat upward; the exit plate box body cover plate sheet metal (242) is used as the front side of the exit plate box body (20) through the loose screw (28), and the exit plate box body cover plate sheet metal (242) avoids each current terminal and related components, and the name of each related component is silk-screened.

4. A tandem drive box according to claim 3, characterized in that: The board body of the exit board module (21) is provided with two first negative current terminals (211), two first positive current terminals (212), four first status indicator lights (213) and one 96-pin connector male head (214), wherein the first positive current terminal (212) and the first negative current terminal (211) are respectively connected to the positive and negative power lines of the corresponding battery channels; the four first status indicator lights (213) respectively correspond to the charge and discharge states of the two battery channels, wherein the first channel of the exit board module (21) corresponds to two indicator lights, BY1 displays a red light on or off, and CTR1 displays a green light on or off; the second channel corresponds to two indicator lights, BY2 displays a red light on or off, and CTR2 displays a green light on or off, and several combinations of the indicator lights respectively correspond to different states of battery charge and discharge; the relevant input and output signals and auxiliary power of the exit board module (21) are transmitted by plugging the 96-pin connector male head (214) with the corresponding 96-pin connector female head (234) on the baseboard module (23).

5. A tandem drive box according to claim 4, characterized in that: The base plate module (23) is provided with a second positive current terminal (231), a second negative current terminal (232), two 48-pin female connectors (233) and four 96-pin female connectors (234). In the first exit plate box, the second positive current terminal (231) of the base plate module (23) is plugged into the third negative current terminal (312) of the first drive plate box, and the second negative current terminal (232) of the base plate module (23) is plugged into the positive current terminal of the base plate module of the second exit plate box. The second negative current terminal (232) of the bottom plate module of the second exit plate box is plugged in and connected to the second positive current terminal (231) of the bottom plate module of the third exit plate box, and so on, until the positive current terminal (231) of the bottom plate module of the Nth exit plate box is plugged in and connected, the second negative current terminal (232) of the bottom plate module of the Nth exit plate box is plugged in and connected to the third positive current terminal (311) of the first drive plate box, and the drive plate mechanism (3) and the exit plate box form a complete series circuit.

6. A tandem drive box according to claim 5, characterized in that: The driving plate box (30) comprises two sets, namely a first driving plate box (301) and a second driving plate box (302). The first driving plate box (301) and the second driving plate box (302) have the same structure. The first driving plate box (301) and the second driving plate box (302) are fixed by a driving plate side support sheet metal (36). The driving plate side support sheet metal (36) is fixed on the driving plate bottom support sheet metal (37). The lower end of the driving plate bottom support sheet metal (37) is bent into a support structure to form a complete driving plate assembly.

7. A tandem drive box according to claim 6, characterized in that: The driving plate box (30) comprises a driving plate module (31), a driving plate reinforcing rib (32), a driving box cover (33), a driving box bottom plate (34) and a driving plate fan (35), wherein the driving box cover (33) and the driving box bottom plate (34) are arranged to form a hollow driving plate box structure; the driving plate module (31) is arranged on the driving box bottom plate (34), and driving plate reinforcing ribs (32) are provided on both sides of the driving plate module (31), and the driving plate modules (31) of the two sets of driving plate boxes are connected in parallel with each other, and the driving plate modules (31) and the exit plate box (20) are sequentially connected in series to form a series circuit; the driving plate fan (35) is installed at the bottom of the driving box bottom plate (34), and the driving plate fan (35) blows air upward.

8. The tandem drive box according to claim 7, characterized in that: The strong power mechanism (4) includes a plurality of AC-DC inverters (41) and an air switch assembly (42). External strong power is electrically connected to the AC-DC inverter (41) through the air switch assembly, and is used to input strong power to the AC-DC inverter. The AC-DC inverter (41) is responsible for inputting and outputting power to the drive board box. The AC-DC inverters correspond to the drive board box one by one. The AC-DC inverters are fixed by strong power side support sheet metal (43). The strong power side support sheet metal (43) is fixed on the strong power bottom support sheet metal (44). The lower end of the strong power bottom support sheet metal (44) is made into a bent support structure.

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