Lithium battery pack protection board testing all-in-one machine

Abstract

The utility model relates to a lithium battery pack protection plate testing all-in-one machine which comprises a shell, the shell comprises a detachable upper cover plate, a detachable middle partition plate is arranged in the shell, and a hollow cavity in the shell is divided into a first cavity and a second cavity by the middle partition plate. A constant current source module used for providing direct current for detection is arranged in the first cavity, a simulator module used for achieving multifunctional detection is arranged in the second cavity, the simulator part comprises a plurality of guide rails detachably connected to the middle partition plate, and each guide rail is provided with a board card installation groove used for being connected with a board card in an inserted mode. The device is simple in structure, high in integration level and convenient to replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of display panels, in particular to an all-in-one test machine for a lithium battery pack protection board. Background Art

[0002] The protection board test all-in-one machine is mainly used for functional testing of lithium battery protection boards. It is suitable for testing protection boards of products such as outdoor power supplies, power tools, garden tools, electric bicycles, and backup power supplies. It integrates the basic characteristic testing and protection characteristics of lithium battery protection boards, and can realize lithium battery protection board testing functions such as power management IC parameter downloading, comparison, and PCB calibration.

[0003] The traditional protection board test system is bulky and requires external constant current source and other equipment. The test process is cumbersome and complicated. The parameter configuration is single and cannot meet the rich and diverse test requirements of different products. Utility Model Content

[0004] The embodiment of the present application provides a lithium battery pack protection board test all-in-one machine and a display panel detection device, which not only has a simple structure but also has a high degree of integration and is easy to replace and maintain.

[0005] An embodiment of the present application provides a lithium battery pack protection board test all-in-one machine, including a shell, the shell including a detachable upper cover, a detachable middle partition is arranged in the shell, the middle partition divides the hollow chamber in the shell into a first chamber and a second chamber, the first chamber is provided with a constant current source module for providing direct current for detection, the second chamber is provided with a simulator module for realizing multi-functional detection, the simulator part includes a plurality of guide rails detachably connected to the middle partition, each guide rail is provided with a board mounting slot for plugging in boards.

[0006] Preferably, the constant current source module includes an analog switching power supply, a constant current source board and a constant current source output adapter board fixedly connected to the middle partition, the constant current source board is connected to a constant current source control board, the constant current source board and the constant current source output adapter board are electrically connected through a copper bus, and the constant current source output adapter board is electrically connected to an output copper bus.

[0007] Preferably, a plurality of guide rail fixing strips arranged in parallel and at intervals are fixedly connected to the middle partition, and the guide rails and the guide rail fixing strips are detachably vertically connected.

[0008] Preferably, the bottom surface of the guide rail is provided with ridges, and the top surface of the guide rail is provided with the board installation groove which is consistent with the extension direction of the guide rail.

[0009] Preferably, the board connected to any one of the guide rails is a main control board, a simulator power board, a resistor board, or a relay board.

[0010] Preferably, a digital switching power supply is also provided in the second chamber.

[0011] Preferably, the rear panel of the housing is provided with a socket for accessing the mains and an output interface conversion board.

[0012] Preferably, a fan capable of dissipating heat from the first chamber and the second chamber at the same time is arranged in the housing.

[0013] Preferably, a display screen is provided on the front panel of the housing.

[0014] Preferably, ventilation holes are provided on the side panels of the shell.

[0015] The beneficial effects of the technical solution provided by the present application include: the utility model realizes the functional division of the integrated machine structure by dividing the shell into two chambers as a whole, that is, the simulator part and the constant current source part are isolated from each other, so that the layout of the integrated machine is reasonable and convenient for layered maintenance;

[0016] Furthermore, the constant current source module of the utility model includes an analog switch power supply, a constant current source card and a constant current source output adapter board fixedly connected to the middle partition, the constant current source card is connected to a constant current source control board, the constant current source card and the constant current source output adapter board are electrically connected through a copper bus, and the constant current source output adapter board is electrically connected to an output copper bus. This structural design has the advantages of being compact and capable of providing a stable power supply for the all-in-one machine;

[0017] Furthermore, a plurality of guide rail fixing strips arranged in parallel and at intervals are fixedly connected to the middle partition of the utility model, the guide rail and the guide rail fixing strip are detachably connected vertically, the bottom surface of the guide rail is provided with a convex ridge, and the top surface of the guide rail is provided with a board mounting groove consistent with its extension direction, and the board connected to any one of the guide rails is a main control board or a simulator power board or a resistor board or a relay board. This structure improves the compatibility of the utility model, so that it can quickly and reasonably increase or decrease boards as needed;

[0018] Furthermore, the second chamber of the utility model is also provided with a digital switching power supply, and the rear panel of the housing is provided with a socket for connecting to the mains and an output interface conversion board, and this structural design can stably supply power to the all-in-one machine;

[0019] Furthermore, a fan capable of dissipating heat to the first chamber and the second chamber at the same time is arranged in the housing of the utility model. This structural design can use the same power supply to dissipate heat to the two chambers at the same time and stably;

[0020] Furthermore, the simulator of the utility model has a modular structure layout, and a single unit has 8 slots. When applying different products, different types of board modules can be matched according to needs, such as main control board, 3-channel battery simulation board, 8-channel resistor board, 32-channel relay board, etc., to meet different protection board test requirements;

[0021] Furthermore, each simulator of the utility model can carry up to 8 3-channel battery simulation boards, with a total of 24 channels output, which can simulate 24 batteries. Each channel is isolated from each other, and each channel can be used individually or in series. At the same time, multiple protection board test all-in-one machines can also be connected in series to meet the output requirements of hundreds of channels;

[0022] Furthermore, the protection board test all-in-one machine of the utility model has a display unit and a key control unit, which can realize human-computer interaction without a computer host, avoid other equipment such as an external computer, and save space and external wiring;

[0023] Furthermore, the simulator part of the utility model is used for single cell simulation, NTC resistance simulation, balancing function test, static power consumption test, etc. of the protection board test integrated machine; the constant current source part of the utility model is used for overcharge and over-discharge protection function test of the protection board test integrated machine; the main control board of the utility model is used for communication between the protection board test integrated machine and the host computer, protocol analysis, command forwarding, interface display, button analysis, fan control and other functions; the simulator power board of the utility model is used for single cell simulation, balancing function test, static power consumption test of the protection board test integrated machine; The resistor card is used for NTC resistor simulation of the protection board test all-in-one machine; the relay card of the utility model is used for providing closing and other protection functions for the protection board test all-in-one machine; the constant current source board of the utility model is used to provide the constant current output or input required for the overcharge and over-discharge protection function test of the protection board test all-in-one machine; the constant current source control board of the utility model is used to realize voltage sampling of the output end and the output remote feedback, collect overvoltage, overcurrent, overtemperature and other signals, and realize real-time output control of the protection board test all-in-one machine; the constant current source output adapter board of the utility model is used to transfer the constant current source output to the rear panel to realize external output. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1This is an isometric view of the appearance of a lithium battery pack protection board testing integrated machine according to an embodiment of the present application;

[0026] Figure 2 A top view of a lithium battery pack protection board testing integrated machine according to an embodiment of the present application (with the upper cover removed);

[0027] Figure 3 A top view of a lithium battery pack protection board test integrated machine according to an embodiment of the present application (with the upper cover and the middle partition removed);

[0028] Figure 4 It is a middle partition assembly of a lithium battery pack protection board test all-in-one machine in an embodiment of the present application;

[0029] Figure 5 It is a cross-sectional view of a lithium battery pack protection board testing integrated machine according to an embodiment of the present application;

[0030] Figure 6 This is a circuit principle block diagram of a lithium battery pack protection board test all-in-one machine according to an embodiment of the present application;

[0031] In the figure: 1-front panel; 1.1-buttons and knobs; 1.2-display screen; 1.3-handle; 2-side panel; 2.1-ventilation hole; 3-upper cover; 4-middle partition; 4.1-bridge hole; 4.2-screw hole; 4.3-partition pressure riveting stud; 5-analog switching power supply; 6-analog switching power supply fixing plate; 7-fan (constant current source part); 8-fan (constant current source part) fixing plate; 9-constant current source control board; 10-constant current source board; 11-lap negative copper busbar; 12-lap positive copper busbar; 13-constant current source output adapter board; 1 4-output negative copper busbar; 15-output positive copper busbar; 16-rear panel; 16.1-three-hole socket; 17-output interface conversion board; 18-simulator power board; 19-relay board; 20-resistance board; 21-main control board; 22-digital part switching power supply; 23-digital part switching power supply fixing board; 24-interconnection board; 25-fan (digital part) fixing board; 26-fan (digital part); 27-guide rail fixing strip; 28-guide rail; 29-base plate; 29.1-rivet nut; 29.2-base plate riveting stud. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] like Figure 1-5 As shown, the utility model is a lithium battery pack protection board test all-in-one machine, including a shell, the shell includes a front panel 1, a side panel 2, and an upper cover plate 3, the shell includes a detachable upper cover plate 3, a detachable middle partition plate 4 is arranged in the shell, the middle partition plate 4 divides the hollow chamber in the shell into a first chamber and a second chamber, a constant current source module for providing direct current for detection is arranged in the first chamber, a simulator module for realizing multi-functional detection is arranged in the second chamber, and the simulator part includes a plurality of guide rails 28 detachably connected to the middle partition plate 4, and each guide rail 28 is provided with a board mounting slot for plugging in boards.

[0034] Preferably, if Figure 3 As shown, the front side of the middle partition 4 has a bridge hole 4.1 for binding wires; there are screw holes 4.2 for locking the middle partition 4 and the fan (digital part) fixing plate 25; the analog switch power supply fixing plate 6 locks the analog switch power supply 5 on the middle partition 4; the fan (constant current source part) fixing plate 8 fixes the fan (constant current source part) 7 on the middle partition 4; the fan (constant current source part) 7 is used to dissipate heat for the constant current source board 10; the constant current source control board 9 is fixed on the constant current source board 10; the overlapping negative copper bus 11 and the overlapping positive copper bus 12 connect the positive and negative poles between the constant current source board 10 and the constant current source output adapter board 13; the output negative copper bus 14 and the output positive copper bus 15 are used for positive and negative output.

[0035] Preferably, if Figure 4 As shown, a three-hole socket 16.1 is installed on the rear panel 16 for connecting to the mains power supply; the output interface conversion board 17 is fixed on the rear panel 16, and is used to convert the output interfaces such as the simulator power board 18 (up to 6 can be placed), the relay board 19, the resistor board 20, and the main control board 21 to the outside of the casing for customer convenience; the digital part switching power supply fixing plate 23 locks the digital part switching power supply 22 on the side panel 2; the digital part switching power supply 22 converts the AC power supply into a stable DC power supply to power the digital part; the interconnection board 24 connects various boards with the buttons and display screen; the fan (digital part) fixing plate 25 fixes the fan (digital part) 26 on the bottom plate 29; the fan (digital part) 26 is used to dissipate heat for various boards

[0036] Preferably, the constant current source module includes an analog switching power supply 5 fixedly connected to the middle partition 4, a constant current source board 10 and a constant current source output adapter board 13, the constant current source board 10 is connected to a constant current source control board 9, the constant current source board 10 and the constant current source output adapter board 13 are electrically connected through a copper bus, and the constant current source output adapter board 13 is electrically connected to the output copper bus.

[0037] Preferably, if Figure 5-6As shown, the back of the middle partition assembly includes a middle partition 4, a guide rail fixing strip 27, and a guide rail 28, wherein the back of the middle partition 4 has a partition rivet stud 4.3 for locking the guide rail fixing strip 27; the front of the guide rail 28 has a guide groove and a back convex ridge, the guide groove is used for smooth insertion and movement of the upper part of the board, and the convex ridge is used to snap into the guide rail fixing strip 27 for fixation; the bottom plate assembly includes a bottom plate 29, a guide rail fixing strip 27, and a guide rail 28, wherein the bottom plate 29 has a rivet nut 29.1 and a bottom plate rivet stud 29.2, the rivet nut 29.1 is used to fix the foot pad under the bottom plate; the bottom plate rivet stud 29.2 is used to lock the guide rail fixing strip 27, the front of the guide rail 28 has a guide groove and a back convex ridge, the guide groove is used for smooth insertion and movement of the lower part of the board, and the convex ridge is used to snap into the guide rail fixing strip 27 for fixation.

[0038] Preferably, the board connected to any one of the guide rails 28 is the main control board 21 or the simulator power board 18 or the resistor board 20 or the relay board 19 .

[0039] Preferably, a digital switching power supply 22 is also provided in the second chamber.

[0040] Preferably, the rear panel 16 of the housing is provided with a socket 16 . 1 for accessing the mains electricity and an output interface conversion board 17 .

[0041] Preferably, a fan capable of dissipating heat from the first chamber and the second chamber at the same time is arranged in the housing.

[0042] Preferably, the front panel 1 includes buttons and knobs 1.1, a display screen 1.2, a handle 1.3 and the like.

[0043] Preferably, the side plate 2 is provided with a plurality of ventilation holes 2.1 in an oval shape.

[0044] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 application 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 cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0045] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0046] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A lithium battery pack protection board test all-in-one machine, characterized by: The invention comprises a shell, wherein the shell comprises a detachable upper cover plate (3), wherein a detachable middle partition plate (4) is arranged in the shell, wherein the middle partition plate (4) divides a hollow chamber in the shell into a first chamber and a second chamber, wherein a constant current source module for providing direct current for detection is arranged in the first chamber, wherein a simulator module for realizing multifunctional detection is arranged in the second chamber, wherein the simulator part comprises a plurality of guide rails (28) detachably connected to the middle partition plate (4), wherein each guide rail (28) is provided with a board installation slot for plugging in a board.

2. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: The constant current source module comprises an analog switch power supply (5) fixedly connected to the middle partition (4), a constant current source board (10) and a constant current source output adapter board (13); the constant current source board (10) is connected to a constant current source control board (9); the constant current source board (10) and the constant current source output adapter board (13) are electrically connected via a copper bus; and the constant current source output adapter board (13) is electrically connected to an output copper bus.

3. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: A plurality of guide rail fixing strips (27) arranged in parallel and at intervals are fixedly connected to the middle partition plate (4), and the guide rail (28) and the guide rail fixing strips (27) are detachably vertically connected.

4. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: The bottom surface of the guide rail (28) is provided with a convex ridge, and the top surface of the guide rail (28) is provided with the board installation groove which is consistent with its extension direction.

5. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: The board connected to any one of the guide rails (28) is a main control board (21), a simulator power board (18), a resistor board (20), or a relay board (19).

6. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: The second chamber is also provided with a digital switching power supply (22).

7. The lithium battery pack protection board testing integrated machine according to claim 6, characterized in that: The rear panel (16) of the housing is provided with a socket (16.1) for connecting to the mains electricity and an output interface conversion board (17).

8. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: A fan capable of dissipating heat from the first chamber and the second chamber at the same time is arranged in the shell.

9. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: A display screen (1.2) is arranged on the front panel of the housing.

10. The lithium battery pack protection board testing integrated machine according to claim 1, characterized in that: The side plate (2) of the shell is provided with ventilation holes.

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