BMS module automatic burning test board

Abstract

The invention discloses a BMS module automatic burning test board which comprises a feeding conveying belt, an automatic grabbing assembly and a plurality of sets of automatic burning and testing assemblies, according to the BMS module automatic burning test board, through the modular design, the burning and testing process of multiple BMS modules to be burnt and tested is achieved through unified automatic control actions, and the replaceability is high; according to the BMS module testing device, synchronous electrical conduction of the burning pins and the testing pins is achieved in an up-and-down alignment pressing mode, burning is carried out firstly, heat dissipation and cooling are matched, then a power-up simulation test is carried out, and the testing efficiency of the BMS module is fully improved; in order to reduce disordered wire layout, the upper burning box lead is conducted by the lower switching probe group and the upper switching probe group in a male and female plug-in manner, so that the electrical connection scheme is simplified, and the modular circuit control is simpler.

Description

Technical Field

[0001] The present invention relates to the field of automated testing equipment, and in particular to an automatic burning test bench for a BMS module. Background Art

[0002] BMS module, namely battery management system module, is an assembly of the battery voltage, current, power and other electrical signal control systems that are necessary for on-board battery packs in the field of new energy vehicles. It plays a decisive role in the "three-electric" management technology of new energy vehicles. At present, the new energy vehicle market is developing rapidly worldwide. The safety and reliability of battery packs have become the technical basis for safe driving of vehicles. Burning BMS and BMS performance testing have become production projects that must be implemented one by one by automobile OEMs. It is required that the BMS module of each new energy vehicle must be accurately burned, simulated and tested on the machine to fully ensure the driving safety and personal safety of the vehicles sold on the road. For this reason, such a large-scale burning and testing production demand for BMS modules requires more efficient burning and testing equipment for testing. Therefore, it is necessary for us to design an automated burning and testing equipment for BMS modules. Summary of the invention

[0003] The purpose of the present invention is to implement automatic burning and testing of the on-board BMS module of new energy vehicles, realize burning and performance testing of large quantities of BMS to be installed one by one, and improve the product factory qualification rate and testing efficiency. We design and propose a BMS module automatic burning test bench.

[0004] The technical solutions adopted to solve the above problems are:

[0005] A BMS module automatic burning test bench comprises a feeding conveyor belt, an automatic grabbing component and a plurality of groups of automatic burning and testing components.

[0006] The automatic grabbing assembly includes a mechanical arm, a quick-change plate, a pneumatic chuck assembly, a position sensor and a limit suction cup. The mechanical arm and the pneumatic chuck assembly are connected through the quick-change plate. The pneumatic chuck assembly includes a chuck, a clamping cylinder and a clamping arm that are symmetrically arranged on the left and right. The chuck is symmetrically arranged with a limit suction cup in front and back. The position sensor is arranged on the chuck and faces the area to be grabbed below. The clamping arms on the left and right sides are used to clamp the BMS module to be burned on the feeding conveyor belt and place it in the automatic burning and testing assembly.

[0007] The automatic burning and testing assembly includes a lower box rail arranged on the base, a lower test box and an upper burning box which can be replaced according to the type of BMS module to be burned and tested, an upper box rail supporting the upper burning box, a lifting plate and a support table, and a lifting cylinder driving the lifting plate to realize a lifting linear motion and guide rod and guide sleeve assemblies at the four corners.

[0008] The lower test box is directly fed and positioned by the lower box rail support. A support platform is arranged above the lower test box. Guide rod and guide sleeve assemblies are arranged at the four corners of the support platform. The guide sleeve cooperates with the four corners of the lifting plate to limit the vertical sliding movement of the lifting plate. Upper box rails are arranged on both sides of the lower end surface of the lifting plate. The upper box rails support the upper burning box to slide linearly and feed it to the top of the lower test box, and the limit bolts are used to position and limit the position.

[0009] The lower test box includes a test carrier, a bottom bracket, four corner limit blocks, a lower test probe group and a lower transfer probe group, as well as a burning instrument and a test instrument placed in the box. The test carrier is provided with a positioning slot for the BMS module to be burned and tested, and the BMS module is positioned by the four corner limit blocks. The lower test probe group is arranged opposite to the position of the pin to be tested after the burning of the BMS module is completed, and electrical conduction is achieved by pressing the contact. The lower transfer probe group is plugged into and matched with the upper transfer probe group of the upper burning box to achieve electrical conduction. The lower test probe group is connected to the test instrument, and the lower transfer probe group is connected to the burning instrument.

[0010] The upper burning box includes a burning platen, and a pointed pressing rod with a buffer pressing function arranged on the lower end surface of the burning platen, an upper burning probe group and an upper transfer probe group. The pointed pressing rod is pressing and positioning the BMS module to be burned and tested below, and the upper burning probe group is in contact with the burning pins of the BMS module to be burned to implement electrical conduction. The upper transfer probe group is electrically connected with the upper burning probe group and obtains the electrical signal transmitted by the lower transfer probe group, and the BMS module is burned through the burning instrument.

[0011] Furthermore, the feed conveyor belt includes a fixed conveyor rail and a movable conveyor rail. The movable conveyor rail and the fixed conveyor rail cooperate with each other through an electric sliding screw pair to achieve spacing adjustment, which can be suitable for feeding and loading BMS modules of various widths.

[0012] Furthermore, an exhaust radiator is provided on one side of the lower test box to assist in the BMS heat dissipation during the burning process.

[0013] Furthermore, the lower box rail is connected to the bottom bracket, and the bottom bracket and the test carrier are directly positioned and limited by positioning pins.

[0014] Furthermore, an electric cylinder slide is provided at the lower end of the base, and the electric cylinder slide drives the lower test box to feed and make way, so as to obtain the BMS module to be burned and tested which is grabbed by the robotic arm.

[0015] The beneficial effects of the present invention are:

[0016] 1. The BMS module automatic burning test bench uses modular design to realize the burning and testing process of various BMS modules to be burned and tested through unified automatic control actions, and has strong substitutability;

[0017] 2. Through the pressing method of upper and lower alignment, the programming pins and the test pins are electrically connected synchronously. The programming is performed first, and the heat dissipation is coordinated, and then the power-on simulation test is performed, which fully improves the test efficiency of the BMS module;

[0018] 3. In order to reduce the confusion of wire layout, the upper burning box leads are connected by the lower transfer probe group and the upper transfer probe group in the form of male and female plug-in, which simplifies the electrical connection scheme and makes the modular circuit control more concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the automatic burning test bench of the BMS module of the embodiment;

[0020] Figure 2 It is a schematic diagram of the structure of the feeding conveyor belt, the automatic grabbing component and the automatic burning and testing component described in the embodiment;

[0021] Figure 3 It is a side plan view of the quick-change plate, the pneumatic chuck assembly, the position sensor and the limit suction cup described in the embodiment;

[0022] Figure 4 It is a structural schematic diagram of the automatic burning and testing component described in the embodiment;

[0023] Figure 5 It is a structural schematic diagram of the lower test box and the upper burning box described in the embodiment;

[0024] Figure 6 It is a side view of the upper burning box described in the embodiment;

[0025] Figure 7 A side plan view of the lower test box described in the embodiment;

[0026] Figure 8 is a side plan view of the BMS module described in the embodiment;

[0027] Among them, 1-robot arm, 2-automatic grabbing assembly, 3-feeding conveyor belt, 4-automatic burning and testing assembly, 5-lifting platform, 6-lower box rail, 7-lower test box, 8-upper burning box, 9-quick change plate, 10-position sensor, 11-clamping plate, 12-clamping arm, 13-clamping cylinder, 14-suction cup, 15-positioning column, 16-guide rod and guide sleeve assembly, 17-bottom bracket, 18-positioning pin, 19-lower Test box frame, 20-test carrier, 21-upper burning box frame, 22-lifting plate, 23-upper box rail, 24-limit bolt, 25-lifting cylinder, 26-support table, 27-positioning slot, 28-general probe group, 29-lower transfer probe group, 30-upper transfer probe group, 31-lower test probe group, 32-guide pin, 33-upper burning probe group, 34-pointed pressure rod, 35-pin to be burned, 36-carrier board. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described in the following in the form of embodiments in conjunction with the accompanying drawings.

[0029] See also Figure 1 , Figure 2 This embodiment provides a BMS module automatic burning test bench, including a feeding conveyor belt 3, an automatic grabbing component 2 and four sets of automatic burning and testing components 4.

[0030] See also Figure 3 The automatic grabbing assembly 2 includes a mechanical arm 1, a quick-change plate 9, a pneumatic chuck assembly, a position sensor 10 and a limit suction cup 14. The mechanical arm 1 and the pneumatic chuck assembly are connected through the quick-change plate 9. The pneumatic chuck assembly includes a chuck 11, a gripping cylinder 13 symmetrically arranged on the left and right, and a clamping arm 12. The chuck 11 is symmetrically arranged with a limit suction cup 14. The position sensor 10 is arranged on the chuck 11 and faces the area to be grasped below. The clamping arms 12 on the left and right sides clamp the BMS module to be burned on the feeding conveyor belt 3 and place it on the automatic burning and testing assembly 4. The pneumatic chuck assembly adapted to the BMS module to be burned and tested can be quickly replaced through the quick-change plate.

[0031] See also Figures 4 to 7 The automatic burning and testing assembly 4 includes a lower box rail 6 arranged on the base, a lower test box 7 and an upper burning box 8 which can be replaced according to the type of BMS module to be burned and tested, an upper box rail 23 supporting the upper burning box 8, a lifting plate 22 and a support platform 26, and a lifting cylinder 25 that drives the lifting plate 22 to realize a lifting and lowering linear motion and guide rod and guide sleeve assemblies 16 at the four corners.

[0032] Among them, see Figure 5 and Figure 7The lower test box 7 is supported by the lower box rail 6 for direct feeding and positioning. A support platform 26 is arranged above the lower test box 7. Guide rod and guide sleeve assemblies 16 are arranged at the four corners of the support platform 26. The guide sleeve cooperates with the four corners of the lifting plate 22 to limit the vertical sliding action of the lifting plate 22. Upper box rails 23 are arranged on both sides of the lower end surface of the lifting plate 22.

[0033] See also Figure 7 The lower test box 7 includes a test carrier 20, a bottom bracket 17, four corner limit blocks, a lower test probe group 31 and a lower transfer probe group 29, as well as a burning instrument and a test instrument placed in the box. The test carrier 20 is provided with a positioning groove 27 for the BMS module to be burned and tested, and the BMS module is positioned by the four corner limit blocks. The lower test probe group 31 is arranged opposite to the position of the pin to be tested after the BMS module is burned, and electrical conduction is achieved by pressing and contacting. The lower transfer probe group 29 is plugged into and matched with the upper transfer probe group 30 of the upper burning box 8 to achieve electrical conduction. The lower test probe group 31 is connected to the test instrument, and the lower transfer probe group 29 is finally connected to the burning instrument.

[0034] See also Figure 5 and Figure 6 The upper burning box 8 includes a burning platen, and a pointed pressing rod 34 with a buffer pressing function arranged on the lower end surface of the burning platen, an upper burning probe group 33 and an upper transfer probe group 30. The pointed pressing rod 34 is pressing and positioning the BMS module to be burned and tested below, and the upper burning probe group 33 is in contact with the burning pins of the BMS module to be burned to implement electrical conduction. The upper transfer probe group 30 is electrically connected with the upper burning probe group 33, and obtains the electrical signal transmitted by the lower transfer probe group 29, and burns the BMS module through the burning instrument.

[0035] After being collected by the main probe group 28, each probe group is connected to a test instrument or a burning instrument, and a PLC program monitors the burning result and the test result to obtain an automatic control effect.

[0036] In order to reduce the confusion of wire layout, the upper burning box leads are connected by the lower transfer probe group and the upper transfer probe group in the form of male and female plug-in, which simplifies the electrical connection scheme and makes the modular circuit control more concise.

[0037] It can be seen that by pressing the upper burning box 8 and the lower test box 7 together, the synchronous electrical conduction of the burning pins and the test pins is achieved. The burning is first performed, and heat dissipation and cooling are combined, and then the power-on simulation test is performed, which fully improves the test efficiency of the BMS module.

[0038] A further implementation scheme is that the feed conveyor belt 3 includes a fixed conveyor rail and a movable conveyor rail, and the movable conveyor rail and the fixed conveyor rail are matched with each other through an electric sliding screw pair to achieve spacing adjustment, which can be suitable for feeding and loading BMS modules of various widths.

[0039] See also Figure 4 The upper box rail 23 supports the upper burning box 8 to slide linearly to the top of the lower test box 7, and is positioned and limited by the limit bolt 24.

[0040] See also Figure 2 A ventilation radiator is provided on one side of the lower test box 7 to cooperate with the BMS heat dissipation during the burning process.

[0041] Furthermore, the lower box rail 6 is connected to the bottom bracket 17 , and the bottom bracket 17 and the test carrier 20 are directly positioned and limited by the positioning pins 18 .

[0042] See also Figure 4 The lower end of the base 17 is provided with an electric cylinder slide, which drives the lower test box 7 to feed and make way, so as to obtain the BMS module to be burned and tested grabbed by the robot arm 1.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Various changes, modifications, substitutions and variations can be made within the knowledge scope of ordinary technicians in the field without departing from the spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A BMS module automatic burning test bench, comprising a feeding conveyor belt (3), an automatic grabbing component (2) and a plurality of groups of automatic burning and testing components (4), characterized in that: The automatic grabbing component (2) faces the area to be grabbed below, and clamps the BMS module to be burned on the feeding conveyor belt (3) and places it on the automatic burning and testing component (4). The automatic burning and testing assembly (4) comprises a lower box rail (6) arranged on a base, a lower test box (7) and an upper burning box (8) which can be replaced according to the type of BMS module to be burned and tested, an upper box rail (23) supporting the upper burning box (8), a lifting plate (22) and a support table (26), and a lifting cylinder (25) driving the lifting plate (22) to realize a lifting and lowering linear motion and guide rod and guide sleeve assemblies (16) at four corners. The lower test box (7) is supported by the lower box rail (6) to be directly fed and positioned and limited. A support platform (26) is arranged above the lower test box (7). Upper box rails (23) are arranged on both sides of the lower end surface of the lifting plate (22). The upper box rails (23) support the upper burning box (8) to slide linearly and feed to the upper part of the lower test box (7), and are positioned and limited by the limit bolts (24). The lower test box (7) comprises a test carrier (20), a bottom bracket (17), four corner limit blocks, a lower test probe group (31) and a lower transfer probe group (29), as well as a burning instrument and a test instrument placed in the box. The test carrier (20) is provided with a positioning groove (27) for the BMS module to be burned and tested, and the BMS module is positioned by the four corner limit blocks. The lower test probe group (31) is arranged opposite to the position of the pin to be tested after the burning of the BMS module is completed, and electrical conduction is achieved by pressing the contact. The lower transfer probe group (29) is plugged into and matched with the upper transfer probe group (30) of the upper burning box (8) to achieve electrical conduction. The lower test probe group (31) is connected to the test instrument, and the lower transfer probe group (29) is connected to the burning instrument. The upper burning box (8) comprises a burning platen, a pointed pressing rod (34) with a buffer pressing function arranged on the lower end surface of the burning platen, an upper burning probe group (33) and an upper transfer probe group (30), wherein the pointed pressing rod (34) is pressed and positioned directly on the BMS module to be burned and tested below, and the upper burning probe group (33) is in contact with the burning pins of the BMS module to be burned to implement electrical conduction, and the upper transfer probe group (30) is electrically connected with the upper burning probe group (33) and obtains the electrical signal transmitted by the lower transfer probe group (29), and burns the BMS module through the burning instrument.

2. The BMS module automatic burning test bench according to claim 1 is characterized in that: The automatic grasping assembly (2) comprises a mechanical arm (1), a quick-change disc (9), a pneumatic chuck assembly, a position sensor (10) and a limit suction cup (14); the mechanical arm (1) and the pneumatic chuck (11) assembly are connected via the quick-change disc (9); the pneumatic chuck assembly comprises a chuck (11), a gripping cylinder (13) symmetrically arranged on the left and right, and a clamping arm (12); the chuck (11) is symmetrically arranged on the front and back with a limit suction cup (14); and the position sensor (10) is arranged on the chuck (11).

3. The BMS module automatic burning test bench according to claim 1 is characterized in that: The four corners of the support platform (26) are provided with guide rod and guide sleeve assemblies (16), and the guide sleeves cooperate with the four corners of the lifting plate (22) to limit the vertical sliding movement of the lifting plate (22).

4. The BMS module automatic burning test bench according to claim 1, characterized in that: The feed conveyor belt (3) comprises a fixed conveyor rail and a movable conveyor rail, and the movable conveyor rail cooperates with the fixed conveyor rail through an electric sliding screw pair to achieve spacing adjustment.

5. The BMS module automatic burning test bench according to claim 1 is characterized in that: One side of the lower test box (7) is provided with an exhaust heat sink for dissipating heat during the BMS module burning process.

6. The BMS module automatic burning test bench according to claim 1, characterized in that: The lower box rail (6) is connected to the bottom bracket (17), and the bottom bracket (17) and the test carrier (20) are directly matched for positioning and limiting via the positioning pin (18).

7. The BMS module automatic burning test bench according to claim 1 is characterized in that: An electric cylinder slide is provided at the lower end of the base (17), and the electric cylinder slide drives the lower test box (7) to move forward and make way, thereby obtaining the BMS module to be burned and tested that is grabbed by the mechanical arm (1).

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