Battery curve modeling auxiliary device

Abstract

The utility model discloses a battery curve modeling auxiliary device. The battery curve modeling auxiliary device comprises a base; the first fixing assembly is arranged on the base, and the first fixing assembly is provided with an ejector pin; the second fixing assembly is arranged on the base and used for positioning the battery, and the ejector pin is used for being connected with a contact of the battery and used for being connected with the modeling device. By arranging the first fixing assembly to position the ejector pin and connecting the ejector pin with the contact of the battery, compared with the scheme of welding a wire through the contact in the related technology, the risk that the contact deviates or falls off is reduced, the appearance of the battery is ensured, the positive and negative electrode short circuit problem is avoided, the safety is improved, the internal resistance of the battery is prevented from being influenced, and the modeling accuracy is prevented from being influenced; and the detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery testing device technology, and in particular to a battery curve modeling auxiliary device. Background Technology

[0002] In related technologies, battery curve modeling and testing systems require a PC running battery characterization software. This software controls a DC power supply via a GPIB interface to perform charging and discharging tests on a battery placed in a constant-temperature chamber. The software sets and reads the power supply voltage, current, and the temperature of the chamber. The battery curve modeling process is as follows: First, the battery is fully charged (possibly at different temperatures). Then, the battery is discharged at a constant current at different temperatures, and the open-circuit voltage is recorded at different charge levels (decreasing from 100% to 0%). Finally, the battery's internal resistance is calculated.

[0003] When using existing methods to model the charge and discharge curves of a battery, it is necessary to weld wires to the positive and negative terminals of the battery. These wires are connected to the modeling device. However, welding wires to the positive and negative terminals of the battery can cause the outer casing around the metal contacts to melt, resulting in the metal contacts shifting or falling off. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a battery curve modeling auxiliary device to prevent metal contact points from shifting or falling off.

[0005] A battery curve modeling auxiliary device according to an embodiment of the present invention includes: a base; a first fixing component disposed on the base, the first fixing component being provided with a pin; and a second fixing component disposed on the base, the second fixing component being used to position the battery, the pin being used to connect the contacts of the battery and to connect the modeling device.

[0006] According to the battery curve modeling auxiliary device of this utility model embodiment, by setting a first fixed component positioning pin, the pin is used to connect the battery contacts. Compared with the contact welding wire solution in related technologies, this reduces the risk of contact offset or detachment, ensures the battery appearance, avoids short circuit problems between positive and negative electrodes, improves safety, avoids affecting the battery internal resistance, avoids affecting the accuracy of modeling, and improves detection accuracy.

[0007] In some embodiments, the first fixing component includes a pad disposed below the ejector pin to position the ejector pin.

[0008] In some embodiments, there are multiple pads, which are disposed on opposite sides of the ejector pin.

[0009] In some embodiments, the first fixing component includes: a first frame disposed on the base; and a first stabilizer movably disposed on the first frame, the first stabilizer abutting against the pad or the ejector pin to position the ejector pin.

[0010] In some embodiments, the first stabilizer has a first threaded portion, and the first frame has a first threaded hole that mates with the first threaded portion.

[0011] In some embodiments, the first stabilizer has a first stabilizing plate at one end near the ejector pin, and the first stabilizing plate abuts against the pad.

[0012] In some embodiments, there are multiple ejector pins, which are spaced apart along the width of the base. The first stabilizing plate is located on the side of the pad away from the ejector pins and corresponds to the multiple ejector pins.

[0013] In some embodiments, the end of the first stabilizer away from the ejector pin is configured as a first handle portion, which is used to receive force.

[0014] In some embodiments, the second fixing component and the first fixing component are spaced apart along the length of the base.

[0015] In some embodiments, the second fixing component includes: a second frame disposed on the base; a second stabilizer threadedly connected to the second frame, the second stabilizer having a second stabilizing plate at one end near the battery for abutting the battery, and a second handle portion at one end away from the battery for receiving force.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a front view of the battery curve modeling auxiliary device in this embodiment of the present invention;

[0019] Figure 2 This is a side view of the battery curve modeling auxiliary device in an embodiment of this utility model;

[0020] Figure 3 This is a top view of the battery curve modeling auxiliary device in an embodiment of this utility model.

[0021] Figure label:

[0022] 100. Battery curve modeling auxiliary device;

[0023] 10. Base; 20. First fixing component; 21. Ejector pin; 22. Pad; 23. First frame; 24. First stabilizer; 241. First stabilizing plate; 242. First handle part;

[0024] 30. Second fixing component; 31. Second frame; 32. Second stabilizer; 321. Second stabilizer plate; 322. Second handle part; 200. Battery. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The battery curve modeling auxiliary device 100 of this utility model is described below with reference to the accompanying drawings.

[0031] Reference Figures 1 to 3 According to an embodiment of the present invention, a battery curve modeling auxiliary device 100 includes: a base 10, a first fixing component 20 and a second fixing component 30.

[0032] The first fixing component 20 is disposed on the base 10, and the first fixing component 20 is provided with a pin 21. The second fixing component 30 is disposed on the base 10, and the second fixing component 30 is used to position the battery 200. The pin 21 is used to connect the contacts of the battery 200 and to connect the modeling device.

[0033] The first fixing component 20 and the second fixing component 30 are installed on the base 10. The first fixing component 20 fixes the ejector pin 21, and the second fixing component 30 fixes the battery 200. The ejector pin 21 abuts against the contacts of the battery 200, and the ejector pin 21 transmits electrical signals to the modeling device, which then models the battery.

[0034] In related technologies, the battery curve modeling and testing system requires a PC to run battery characterization software, which controls the DC power supply through the GPIB interface to perform charging and discharging tests on the battery placed in a constant temperature chamber. The software sets and reads the voltage and current of the power supply and the temperature of the constant temperature chamber.

[0035] The battery curve modeling process is as follows: First, fully charge the battery (possibly at different temperatures), then discharge the battery at a constant current at different temperatures, and record the open-circuit voltage of the battery at different charge levels (decreasing from 100% to 0%), and calculate the battery's internal resistance. When using existing methods to model the battery's charge-discharge curve, it is necessary to weld wires to the positive and negative terminals of the battery, connecting the wires to the modeling device. However, welding wires to the positive and negative terminals of the battery can cause the outer casing around the battery's metal contacts to melt, leading to metal contact displacement or detachment, damaging the battery's appearance.

[0036] In this embodiment of the utility model, the contacts of the battery 200 are connected by the ejector pin 21 without welding, thereby avoiding melting of the outer shell around the contacts, reducing the risk of contact displacement or detachment, and ensuring the appearance of the battery 200.

[0037] In related technologies, the spacing between battery metal contacts is small, making welding difficult and prone to short circuits between the positive and negative electrodes, which is dangerous. This utility model embodiment eliminates the need for welding, thereby avoiding the problem of short circuits between the positive and negative electrodes and improving safety.

[0038] In related technologies, differences in the size of welding points and welding techniques among different personnel can affect the battery internal resistance measured by the system. These deviations can lead to differences in curve modeling. This utility model embodiment eliminates the need for welding, thus avoiding any impact on the battery internal resistance and the accuracy of modeling, thereby improving detection precision.

[0039] According to the battery curve modeling auxiliary device 100 of this utility model embodiment, by setting a first fixing component 20 to position the pin 21, the pin 21 is used to connect the contacts of the battery 200. Compared with the contact welding wire scheme in related technologies, this reduces the risk of contact offset or detachment, ensures the appearance of the battery 200, avoids the problem of short circuit between positive and negative terminals, improves safety, avoids affecting the internal resistance of the battery 200, avoids affecting the accuracy of modeling, and improves detection accuracy.

[0040] Reference Figure 1 In some embodiments, the first fixing component 20 includes a pad 22 disposed below the ejector pin 21 to position the ejector pin 21.

[0041] The spacer 22 is replaceable and is located at least below the ejector pin 21, with the ejector pin 21 positioned above it. The spacer 22 supports the ejector pin 21, raising it so that the ejector pin 21 aligns with the contacts of the battery 200. The replaceable spacer 22 is replaceable because different batteries 200 have different sizes, allowing the spacer 22 to be replaced for different batteries 200, ensuring that the ejector pin 21 always aligns with the contacts of the battery 200.

[0042] In the above solution, by setting a replaceable pad 22, the ejector pin 21 is raised using the replaceable pad 22, so that the ejector pin 21 can adapt to batteries 200 of different sizes, thereby improving versatility and reducing the cost of use.

[0043] Reference Figure 1 In some embodiments, there are multiple pads 22, which are disposed on opposite sides of the ejector pin 21.

[0044] The two pads 22 are located on opposite sides of the ejector pin 21, such as the top and bottom sides, and completely cover the ejector pin 21. The ejector pin 21 is located between the two pads 22.

[0045] In the above solution, by setting pads 22 on opposite sides of the ejector pin 21, the ejector pin 21 is supported by the pads 22, and the ejector pin 21 is fully enclosed, which prevents the ejector pin 21 from being damaged and improves stability.

[0046] Reference Figure 1 In some embodiments, the first fixing component 20 includes: a first frame 23 and a first stabilizer 24.

[0047] The first frame 23 is disposed on the base 10. The first stabilizer 24 is movably disposed on the first frame 23, and the first stabilizer 24 abuts against the pad 22 or the ejector pin 21 to position the ejector pin 21.

[0048] The first stabilizer 24 is installed on the first frame 23. The first frame 23 acts as a frame to support the first stabilizer 24. The first stabilizer 24 can move closer to or away from the ejector pin 21, clamp the ejector pin 21, and fix the ejector pin 21.

[0049] In the above scheme, by setting a first stabilizer 24 on the first frame 23, the first stabilizer 24 is used to clamp the ejector pin 21 and fix the ejector pin 21. The overall structure is simple, practical and highly reliable.

[0050] In some embodiments, the first stabilizer 24 has a first threaded portion, and the first frame 23 has a first threaded hole that mates with the first threaded portion.

[0051] The first frame 23 is provided with a first threaded hole, and the first stabilizer 24 has a first threaded part. The first threaded part is threadedly connected to the first threaded hole. When the first stabilizer 24 is rotated, the first stabilizer 24 moves closer to or further away from the ejector pin 21.

[0052] In the above scheme, by setting a first threaded hole on the first frame 23 and a first threaded part on the first stabilizer 24, the first threaded part is threadedly engaged with the first threaded hole. Rotating the first stabilizer 24 can drive the first stabilizer 24 to move closer to or away from the ejector pin 21. The structure is simple, the threaded engagement method is more reliable and convenient, and the ejector pin 21 is quickly fixed, which improves convenience.

[0053] Reference Figure 1 In some embodiments, the first stabilizing member 24 is provided with a first stabilizing plate 241 at one end near the ejector pin 21, and the first stabilizing plate 241 abuts against the pad block 22.

[0054] The first stabilizing plate 241 is a plate-shaped structure. The first stabilizing plate 241 is in surface contact with the pad 22. The entire surface of the first stabilizing plate 241 abuts against the pad 22, fixing the pad 22 and the ejector pin 21.

[0055] In the above solution, by setting a first stabilizing plate 241 at one end of the first stabilizing member 24, the first stabilizing plate 241 is used to stop the pad 22 and press the pad 22, thereby fixing the ejector pin 21, increasing the contact area, making the ejector pin 21 more stable, and the overall structure is simple and has high reliability.

[0056] Reference Figure 2 , Figure 3In some embodiments, there are multiple ejector pins 21, which are spaced apart along the width direction of the base 10. The first stabilizing plate 241 is located on the side of the pad block 22 away from the ejector pins 21 and corresponds to the multiple ejector pins 21.

[0057] Multiple ejector pins 21 are connected to the contacts of the battery 200 respectively. The first stabilizing plate 241 is located on the side of the pad 22 away from the ejector pins 21 and corresponds to multiple ejector pins 21. A single first stabilizing plate 241 stabilizes multiple ejector pins 21 at the same time.

[0058] In the above scheme, by setting a single first stabilizing plate 241 to stabilize multiple ejector pins 21 at the same time, the effectiveness of the first stabilizing plate 241 is fully utilized, which is convenient and reliable.

[0059] For example, there are four ejector pins 21, which are spaced apart in the width direction of the base 10. A single pad 22 is provided above the four ejector pins 21, and a first stabilizing plate 241 is provided above the pad 22. The bottom surface of the first stabilizing plate 241 abuts against the pad 22, pressing the pad 22 tightly onto the ejector pins 21.

[0060] Reference Figure 1 In some embodiments, the end of the first stabilizer 24 away from the ejector pin 21 is configured as a first handle portion 242, which is used to receive force.

[0061] The first handle 242 is used to receive force. The operator holds the first handle 242 and operates the first stabilizer 24. The first stabilizer 24 is rotated so that it moves closer to or away from the ejector pin 21.

[0062] In the above solution, by providing a first handle portion 242 at the end of the first stabilizer 24 away from the ejector pin 21, the operator can easily control the first stabilizer 24, thus improving convenience.

[0063] Reference Figure 1 In some embodiments, the second fixing component 30 and the first fixing component 20 are spaced apart along the length of the base 10.

[0064] The second fixing component 30 and the first fixing component 20 are spaced apart along the length of the base 10, and the ejector pin 21 and the battery 200 are arranged sequentially along the length. The first fixing component 20 and the second fixing component 30 fix the ejector pin 21 and the battery 200 respectively.

[0065] In the above scheme, by arranging the first fixing component 20 and the second fixing component 30 at intervals along the length of the base 10, the ejector pin 21 can more easily contact the contacts of the battery 200, thus facilitating the operation of the ejector pin 21.

[0066] Reference Figure 1In some embodiments, the second fixing component 30 includes: a second frame 31 and a second stabilizer 32.

[0067] The second frame 31 is located on the base 10. The second stabilizer 32 is threadedly connected to the second frame 31. The second stabilizer 32 has a second stabilizer plate 321 at the end near the battery 200. The second stabilizer plate 321 is used to abut against the battery 200. The second stabilizer 32 has a second handle portion 322 at the end away from the battery 200. The second handle portion 322 is used to receive force.

[0068] The second frame 31 supports the second stabilizer 32, which is movable relative to the second frame 31, moving closer to or away from the ejector pin 21. The second stabilizer plate 321 is a plate-shaped structure, and the second stabilizer plate 321 is in surface contact with the battery 200. The entire surface of the second stabilizer plate 321 abuts against the battery 200, fixing the battery 200. The second handle part 322 is used to receive force. The operator holds the second handle part 322 and operates the second stabilizer 32, rotating the second stabilizer 32 so that the second stabilizer 32 moves closer to or away from the ejector pin 21.

[0069] In the above scheme, by threading the second frame 31 to the second stabilizer 32, rotating the second stabilizer 32 can drive the second stabilizer 32 to move closer to or away from the battery 200. The structure is simple, and the threaded connection is more reliable and convenient, quickly fixing the battery 200 and improving convenience. By setting a second stabilizing plate 321 at one end of the second stabilizer 32, the second stabilizing plate 321 is used to stop and press the battery 200, thereby fixing the battery 200, increasing the contact area, and making the battery 200 more stable. The overall structure is simple and has high reliability. By setting a first handle part 242 at the end of the second stabilizer 32 away from the battery 200, the operator can easily control the second stabilizer 32, improving convenience.

[0070] In some specific embodiments, the end of the ejector pin 21 furthest from the battery 200 is welded with a wire, which is connected to the equipment test line of the modeling device.

[0071] In some specific embodiments, the battery curve modeling auxiliary device 100 is installed as follows:

[0072] The first step is to fix the battery 200 to the base 10 using the second stabilizing member 32 and the second frame 31 of the second fixing component 30. Typically, the battery 200 has two positive and two negative contacts.

[0073] The second step is to adjust the distance of the four POGO PIN pins according to the spacing between the positive and negative metal contacts of the battery 200, and then press them onto the metal contacts of the battery 200 in sequence.

[0074] The third step is to use the first stabilizer 24, the first frame 23, and the two pads 22 to clamp the POGO PIN in the middle and fix its position.

[0075] The fourth step is to solder wires to the tail of the POGO PIN. After soldering, start the battery 200 charge-discharge curve modeling test.

[0076] The battery curve modeling auxiliary device 100 of this utility model embodiment has the following advantages: 1. It is simple, convenient and accurate to operate, and improves efficiency; 2. It does not require welding of the positive and negative terminals of the battery 200, does not damage the appearance of the battery 200, and avoids short circuits between the positive and negative terminals; 3. The position of the ejector pin 21 can be freely adjusted, which can be adapted to batteries 200 with different metal contact spacing, and has high versatility.

[0077] Other configurations and operations of the battery curve modeling auxiliary device 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0078] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery curve modeling auxiliary device, characterized in that, include: Base (10); A first fixing component (20) is disposed on the base (10), and the first fixing component (20) is provided with a pin (21); The second fixing component (30) is disposed on the base (10) and is used to position the battery (200). The pin (21) is used to connect the contacts of the battery (200) and to connect the modeling device.

2. The battery curve modeling auxiliary device according to claim 1, characterized in that, The first fixing component (20) includes a pad (22) which is located below the ejector pin (21) to position the ejector pin (21).

3. The battery curve modeling auxiliary device according to claim 2, characterized in that, The number of pads (22) is multiple, and the multiple pads (22) are respectively disposed on opposite sides of the ejector pin (21).

4. The battery curve modeling auxiliary device according to claim 2, characterized in that, The first fixing component (20) includes: The first frame (23) is disposed on the base (10); A first stabilizer (24) is movably disposed on the first frame (23). The first stabilizer (24) abuts against the pad (22) or the ejector pin (21) to position the ejector pin (21).

5. The battery curve modeling auxiliary device according to claim 4, characterized in that, The first stabilizer (24) has a first threaded portion, and the first frame (23) has a first threaded hole that mates with the first threaded portion.

6. The battery curve modeling auxiliary device according to claim 5, characterized in that, The first stabilizer (24) has a first stabilizing plate (241) at one end near the ejector pin (21), and the first stabilizing plate (241) abuts against the pad (22).

7. The battery curve modeling auxiliary device according to claim 6, characterized in that, The number of ejector pins (21) is multiple, and the multiple ejector pins (21) are spaced apart along the width direction of the base (10). The first stabilizing plate (241) is located on the side of the pad (22) away from the ejector pins (21) and corresponds to the multiple ejector pins (21).

8. The battery curve modeling auxiliary device according to claim 4, characterized in that, The end of the first stabilizer (24) away from the ejector pin (21) is configured as a first handle portion (242), which is used to receive force.

9. The battery curve modeling auxiliary device according to claim 1, characterized in that, The second fixing component (30) and the first fixing component (20) are spaced apart along the length of the base (10).

10. The battery curve modeling auxiliary device according to claim 9, characterized in that, The second fixing component (30) includes: The second frame (31) is disposed on the base (10); The second stabilizer (32) is threadedly connected to the second frame (31). The second stabilizer (32) has a second stabilizer plate (321) at one end near the battery (200) for abutting the battery (200). The second stabilizer (321) has a second handle portion (322) at one end away from the battery (200) for receiving force.

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