Battery pack testing device

Abstract

A battery pack testing device comprises a flat plate, a battery holder, a testing head holder and a testing head support. The flat plate consists of a longitudinal battery holder mounting part and a transverse test instrument mounting part; the two battery holders can be mounted on the battery holder mounting part in a longitudinal linear movement manner, and the battery pack is fixedly placed on the battery holders; the test head seat can be transversely and linearly mounted on the test instrument mounting part, the test head support can be transversely and linearly mounted on the test head seat, the test head seat and the test head support are provided with springs, and the test head in butt joint with the battery interface is fixed on the test head support. The device is provided with two movable battery holders for fixing the battery pack, so that the waiting time of a test instrument is greatly shortened, the test efficiency is improved, and meanwhile, a spring is arranged between a test head bracket for fixing a test head and a test head seat, so that rigid contact between a battery interface and the test head is changed into flexible contact; therefore, the contact between the two is ensured and the battery interface or the testing head is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a battery pack testing device. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels and adopt new vehicle power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include four major types: hybrid electric vehicles (HEV), pure electric vehicles (BEV, including solar vehicles), fuel cell electric vehicles (FCEV), and other new energy vehicles (such as supercapacitors, flywheels and other high-efficiency energy storage devices). New energy vehicles rely on power battery packs for power supply. Power battery packs usually need to be tested before leaving the factory. When testing the battery pack, the battery pack needs to be fixed first, and then the battery pack is moved to a position where the battery interface (positive and negative poles) of the battery pack contacts the test head for testing. In existing new energy vehicle power battery pack performance testing devices, it is necessary to wait for the placement and removal of the battery pack before actually testing, which makes the use of the testing instrument not compact and the efficiency of the battery pack testing is low. At the same time, the contact between the battery interface and the test head is rigid contact. A large force can easily damage the battery interface or the test head, and a small force may cause incomplete contact between the two. Therefore, it is necessary to design an efficient battery pack testing device with flexible contact between the test head and the battery interface. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a battery pack testing device, which greatly reduces the waiting time of the test instrument by arranging two movable battery seats for fixing the battery pack, thereby improving the test efficiency. At the same time, a spring is arranged between the test head bracket for fixing the test head and the test head seat so that the battery interface and the test head change from rigid contact to flexible contact, which ensures the contact between the two while not damaging the battery interface or the test head.

[0004] The technical solution of the utility model is as follows:

[0005] A battery pack testing device comprises a flat plate, a battery holder, a test head holder and a test head bracket; the flat plate is fixedly placed on the ground, the flat plate consists of a longitudinal battery holder mounting portion and a transverse test instrument mounting portion, the test instrument mounting portion is arranged in the middle position of the battery holder mounting portion; two battery holders can be mounted on the battery holder mounting portion in a longitudinal linear manner, a battery holder moving drive device is arranged on the battery holder, a battery pack is fixedly placed on the battery holder, and a battery interface of the battery pack faces the direction of the test instrument mounting portion; the test head holder can be mounted on the test instrument mounting portion in a transverse linear manner, a test head holder moving drive device is arranged on the test instrument mounting portion, the test head bracket can be mounted on the test head holder in a transverse linear manner, the test head holder and the test head bracket are provided with springs, a test head connected to the battery interface is fixed on the test head bracket, and the test head is connected to the test instrument fixedly arranged on the flat plate through a cable.

[0006] Support legs are arranged at the bottom of the flat plate and are placed on the ground.

[0007] A mounting groove is arranged on the battery seat mounting portion, a slide groove I is arranged on the side wall of the mounting groove, a boss is arranged on the side of the battery seat, and a slide plate matching with the slide groove I is fixedly connected to the boss.

[0008] The battery holder moving driving device comprises a motor, a driving gear and a rack. The motor is fixed on the battery holder, the driving gear is fixedly connected to the output shaft of the motor, and a rack matched with the driving gear is arranged on the flat plate.

[0009] Two opposite "L"-shaped limiting plates are fixedly arranged on the top of the battery seat and abut against the bottom and side surfaces of the battery pack.

[0010] The ends of the two limit plates are provided with outwardly inclined angles.

[0011] A longitudinal vertical plate is arranged on the test instrument installation part, a transverse telescopic cylinder is fixed on the vertical plate, the test head seat moving drive device is a telescopic cylinder, and the test head seat is fixedly arranged on the telescopic rod of the telescopic cylinder.

[0012] The telescopic cylinder is an electric telescopic cylinder.

[0013] A slide groove II is arranged on the test head seat, and two ends of the test head bracket are matched with the slide groove II.

[0014] A baffle is fixedly connected to the end of the test head seat, and a cavity is arranged on the baffle.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model discloses a battery pack testing device, which greatly reduces the waiting time of the testing instrument and improves the testing efficiency by arranging two movable battery holders for fixing the battery pack.

[0017] 2. The utility model discloses a battery pack testing device, in which a spring is arranged between a test head bracket for fixing a test head and a test head seat so that the battery interface and the test head change from rigid contact to flexible contact, thereby ensuring the contact between the two without damaging the battery interface or the test head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0019] In the attached picture:

[0020] Figure 1 This is a front view of a battery pack testing device according to an embodiment of the utility model;

[0021] Figure 2 A top view of a battery pack testing device according to an embodiment of the utility model;

[0022] Figure 3 for Figure 2 Enlarged view at A in the middle;

[0023] Figure 4 for Figure 3 Middle BB section view;

[0024] The components represented by the reference numerals in the figure are:

[0025] The utility model: 1. ground; 2. supporting legs; 3. flat plate; 3a. battery holder mounting portion; 3a1. mounting groove; 3a2. slide groove I; 3b. test instrument mounting portion; 3b1. vertical plate; 4. battery holder; 4a. limit plate; 4b. boss; 4c. slide plate; 5. battery pack; 5a. battery interface; 6. motor; 7. driving gear; 8. rack; 9. test instrument; 10. telescopic cylinder; 11. test head holder; 11a. slide groove II; 12. spring; 13. test head bracket; 14. test head; 15. baffle; 15a. cavity. DETAILED DESCRIPTION

[0026] like Figure 1 and Figure 2 As shown, the battery pack testing device is characterized by comprising a flat plate 3, a battery holder 4, a test head holder 11 and a test head bracket 13.

[0027] A leg 2 is provided at the bottom of the flat plate 3, and the leg 2 is placed on the ground 1. The flat plate 3 consists of a longitudinal battery holder mounting portion 3a and a transverse test instrument mounting portion 3b, and the test instrument mounting portion 3b is provided in the middle position of the battery holder mounting portion 3a.

[0028] The two battery holders 4 can be mounted on the battery holder mounting portion 3a in a longitudinally linearly movable manner. A battery holder moving drive device is provided on the battery holder 4. The battery pack 5 is fixedly placed on the battery holder 4, and the battery interface 5a of the battery pack 5 faces the test instrument mounting portion 3b.

[0029] See also Figure 1 and Figure 2 A mounting groove 3a1 is provided on the battery seat mounting portion 3a, a slide groove Ⅰ3a2 is provided on the side wall of the mounting groove 3a1, a boss 4b is provided on the side of the battery seat 4, and a slide plate 4c matching the slide groove Ⅰ3a2 is fixedly connected to the boss 4b by screws.

[0030] See also Figure 1 In the enlarged partial view, the battery holder moving drive device includes a motor 6, a driving gear 7 and a rack 8. The motor 6 is fixed on the battery holder 4, the driving gear 7 is fixedly connected to the output shaft of the motor 6, and a rack 8 cooperating with the driving gear 7 is arranged on the flat plate 3.

[0031] See also Figure 2 Two opposite "L"-shaped limiting plates 4a are fixedly provided on the top of the battery seat 4, which are against the bottom and side of the battery pack 5. In order to facilitate the placement of the battery pack 5 between the two limiting plates 4a, the ends of the two limiting plates 4a are provided with outward bevels.

[0032] Combination Figure 1 and Figure 2 , see Figure 3The test head seat 11 can be installed on the test instrument installation part 3b in a transversely linearly movable manner, and a test head seat moving drive device is arranged on the test instrument installation part 3b. The test head bracket 13 can be installed on the test head seat 11 in a transversely linearly movable manner. The test head seat 11 and the test head bracket 13 are provided with a spring 12. A test head 14 connected to the battery interface 5a is fixed on the test head bracket 13, and the test head 14 is connected to the test instrument 9 fixedly arranged on the flat plate 3 through a cable; a longitudinal vertical plate 3b1 is arranged on the test instrument installation part 3b, and a transverse telescopic cylinder 10 is fixed on the vertical plate 3b1. The test head seat moving drive device is a telescopic cylinder 10, and the test head seat 11 is fixedly arranged on the telescopic rod of the telescopic cylinder 10; the telescopic cylinder 10 is an electric telescopic cylinder; Figure 4 As shown, a slide groove II 11a is provided on the test head seat 11, and both ends of the test head bracket 13 cooperate with the slide groove II 11a; a baffle 15 is fixedly connected to the end of the test head seat 11 by screws, and a cavity 15a is provided on the baffle 15.

[0033] The steps for using the battery pack testing device are as follows: first, place the battery pack 5 on the battery holder 4 located on the side of the battery holder mounting portion 3a, specifically, between the two limit plates 4a, press the bottom and side of the battery pack 5 against the limit plates 4a, start the motor 6, and through the cooperation of the active gear 7 and the rack 8, the battery holder 4 is moved to the middle position of the battery holder mounting portion 3a and then stops, and then the telescopic cylinder 10 is started to extend it, and the telescopic rod of the telescopic cylinder 10 drives the test head seat 11 to move toward the battery pack 5. When the test head 14 hits the battery interface 5a, the spring 12 will be compressed to buffer the contact between the test head 14 and the battery interface 5a, and provide elastic force during the entire test process. When the test is completed, the telescopic cylinder 10 is retracted, the test head 14 is separated from the battery interface 5a, and the motor 6 is started to move the battery holder 4 back to its original position for loading and unloading, and at the same time, the motor 6 on another battery holder 4 with a battery pack 5 installed is started for testing.

[0034] The battery pack testing device greatly reduces the waiting time of the testing instrument and improves the testing efficiency by providing two movable battery holders for fixing the battery pack. At the same time, a spring is provided between the test head bracket for fixing the test head and the test head holder so that the battery interface and the test head change from rigid contact to flexible contact, thereby ensuring the contact between the two without damaging the battery interface or the test head.

Claims

1. A battery pack testing device, characterized in that: The device comprises a flat plate (3), a battery holder (4), a test head holder (11) and a test head bracket (13); the flat plate (3) is fixedly placed on the ground (1); the flat plate (3) is composed of a longitudinal battery holder mounting portion (3a) and a transverse test instrument mounting portion (3b); the test instrument mounting portion (3b) is arranged at the middle position of the battery holder mounting portion (3a); two battery holders (4) are mounted on the battery holder mounting portion (3a) in a longitudinal linearly movable manner; a battery holder moving drive device is arranged on the battery holder (4); a battery pack (5) is fixedly placed on the battery holder (4); a battery interface (5a) of the battery pack (5) is arranged on the battery holder (4); Towards the direction of the test instrument installation part (3b); the test head seat (11) can be installed on the test instrument installation part (3b) in a transverse and linearly movable manner, a test head seat movement drive device is arranged on the test instrument installation part (3b), the test head support (13) can be installed on the test head seat (11) in a transverse and linearly movable manner, the test head seat (11) and the test head support (13) are provided with springs (12), a test head (14) connected to the battery interface (5a) is fixed on the test head support (13), and the test head (14) is connected to the test instrument (9) fixedly arranged on the flat plate (3) through a cable.

2. A battery pack testing device according to claim 1, characterized in that: A support leg (2) is provided at the bottom of the flat plate (3), and the support leg (2) is placed on the ground (1).

3. A battery pack testing device according to claim 1, characterized in that: A mounting groove (3a1) is provided on the battery seat mounting portion (3a), a slide groove I (3a2) is provided on the side wall of the mounting groove (3a1), a boss (4b) is provided on the side of the battery seat (4), and a slide plate (4c) matching with the slide groove I (3a2) is fixedly connected to the boss (4b).

4. A battery pack testing device according to claim 3, characterized in that: The battery holder moving drive device comprises a motor (6), a driving gear (7) and a rack (8); the motor (6) is fixed on the battery holder (4); the driving gear (7) is fixedly connected to the output shaft of the motor (6); and the flat plate (3) is provided with a rack (8) that cooperates with the driving gear (7).

5. A battery pack testing device according to claim 1, characterized in that: Two opposite "L"-shaped limiting plates (4a) are fixedly arranged on the top of the battery seat (4) and abut against the bottom and side surfaces of the battery pack (5).

6. A battery pack testing device according to claim 5, characterized in that: The ends of the two limiting plates (4a) are provided with outwardly inclined angles.

7. A battery pack testing device according to claim 1, characterized in that: A longitudinal vertical plate (3b1) is arranged on the test instrument mounting portion (3b), a transverse telescopic cylinder (10) is fixed on the vertical plate (3b1), the test head seat moving drive device is the telescopic cylinder (10), and the test head seat (11) is fixedly arranged on the telescopic rod of the telescopic cylinder (10).

8. A battery pack testing device according to claim 7, characterized in that: The telescopic cylinder (10) is an electric telescopic cylinder.

9. A battery pack testing device according to claim 7, characterized in that: A slide groove II (11a) is provided on the test head seat (11), and two ends of the test head bracket (13) cooperate with the slide groove II (11a).

10. A battery pack testing device according to claim 9, characterized in that: A baffle (15) is fixedly connected to the end of the test head seat (11), and a cavity (15a) is provided on the baffle (15).

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