Power battery test channel parallel connection device

Abstract

The utility model discloses a power battery test channel parallel connection device, which comprises a loading mechanism and a communication mechanism, the loading mechanism comprises a test box, a plurality of groups of fixing assemblies are arranged in the test box, each fixing assembly comprises a pressing plate and two clamping plates which are arranged in the test box, and a first adjusting assembly and a second adjusting assembly are arranged in the test box. The first adjusting assembly is used for enabling the pressing plate to abut against the top of the battery, and the second adjusting assembly is used for enabling the two clamping plates to abut against the two sides of the battery respectively; the communication mechanism comprises two flow guide belts arranged in the test box, through holes are formed in the flow guide belts, bolts are arranged in the through holes in a penetrating mode, and the bolts are connected to the ends of the batteries in a threaded mode. The fixing requirements of batteries of different specifications are met, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of power batteries, in particular to a parallel connection device for power battery test channels. Background Art

[0002] With the popularization of new energy vehicles, the performance test of power batteries has become particularly important. Power batteries are mainly divided into two categories: storage batteries and fuel cells. Storage batteries are suitable for pure electric vehicles, and fuel cells are suitable for fuel cell electric vehicles. Detecting and analyzing the battery capacity can better study the battery degradation process and help us use the battery more scientifically.

[0003] In the related art, a parallel connection device for new energy power battery test channels is proposed, which includes a test box. Heat dissipation frames are symmetrically installed on both sides of the test box. A controller is placed on the side of the test box. A battery slot is opened at the top of the test box. Multiple storage battery boxes are placed inside the battery slot. Spring clamps are installed inside the storage battery boxes. Battery bodies are installed inside the spring clamps. Identification stickers are installed on the outer sides of the battery bodies. Temperature sensors are installed inside the test box. Heating frames and radiators are installed at the bottoms of the storage battery boxes. A rotary cover is installed at the bottom of the test box. Support seats are fixedly installed at the four corners of the bottom of the test box.

[0004] Aiming at the above related art, the following defects exist: new energy vehicles are developing rapidly with a large variety of models, and the types and sizes of power batteries are also different. The positions of the battery boxes and spring clamps in the above device are relatively fixed, and only the detection of power batteries of one model can be satisfied, increasing the production cost. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a parallel connection device for power battery test channels to solve the technical problem that a parallel connection device in the prior art can only adapt to power batteries of one specification.

[0006] To achieve the above technical purpose, the technical solution of the utility model provides a parallel connection device for power battery test channels, which includes a loading mechanism. The loading mechanism includes a test box. A plurality of fixing components are arranged inside the test box. The fixing components include a pressing plate and two clamping plates arranged inside the test box. A first adjusting component and a second adjusting component are arranged inside the test box. The first adjusting component is used to make the pressing plate abut against the top of the battery, and the second adjusting component is used to make the two clamping plates respectively abut against both sides of the battery; and,

[0007] A connecting mechanism, the connecting mechanism includes two diversion belts arranged inside the test box. Through holes are arranged on the diversion belts. Bolts are inserted through the through holes, and the bolts are threadedly connected to the ends of the batteries.

[0008] In some embodiments, the first adjusting component includes a double-headed screw rod rotatably connected inside the test box. Threaded holes are formed in the two clamping plates, and the two ends of the double-headed screw rod are respectively threadedly connected to the two threaded holes.

[0009] In some embodiments, a motor is provided inside the test box, and the output shaft of the motor is coaxially connected to the end of the double-headed screw rod.

[0010] In some embodiments, a loosening-preventing gear is coaxially provided on the double-headed screw rod, a clamping groove is provided inside the test box, and a loosening-preventing tooth block meshing with the loosening-preventing gear is clamped in the clamping groove.

[0011] In some embodiments, the two clamping plates are both inclined, and the two clamping plates decrease from the side far away from each other to the side close to each other.

[0012] In some embodiments, the second adjusting component includes a spring provided on the pressing plate. One end of the spring is connected to the top of the pressing plate, the other end of the spring is connected to the test box, the spring is in a compressed state, and the spring causes the pressing plate to have a tendency to slide towards the clamping plate.

[0013] In some embodiments, anti-slip layers are provided on the sides of the pressing plate close to the two clamping plates.

[0014] In some embodiments, the flow guide belt includes flow guide plates and flow guide strips arranged at intervals. The flow guide plates and the flow guide strips are slidably connected, and the through holes are formed in the flow guide plates.

[0015] In some embodiments, corrugated strips are provided on the flow guide plates.

[0016] In some embodiments, a gasket is sleeved on the bolt.

[0017] Compared with the prior art, the beneficial effects of the present utility model include: The positions of the pressing plate and the clamping plate can be flexibly adjusted by adjusting the first adjusting component and the second adjusting component respectively according to the specific size of the battery to meet the fixing requirements of batteries of different specifications, and the production cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the parallel device provided by the present utility model;

[0019] Figure 2 is the overall structural schematic diagram of the loosening-preventing gear and the loosening-preventing tooth block provided by the present utility model;

[0020] Figure 3 is the overall structural schematic diagram of the flow guide belt provided by the present utility model.

[0021] Description of the reference numerals:

[0022] 1. Loading mechanism; 11. Test box; 2. Fixing component; 21. Pressing plate; 22. Clamping plate; 3. First adjusting component; 31. Double-headed screw rod; 32. Screw hole; 33. Anti-loosening gear; 34. Card slot; 35. Anti-loosening tooth block; 4. Second adjusting component; 41. Spring; 5. Connecting mechanism; 51. Diversion belt; 511. Diversion plate; 512. Diversion strip; 513. Wavy strip; 52. Through hole; 53. Bolt; 54. Gasket; 6. Motor; 7. Anti-slip layer. Detailed implementation manners

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] The present utility model provides a parallel connection device for a power battery test channel, and its structure is as Figure 1 - Figure 3 shown, including a loading mechanism 1 and a connecting mechanism 5.

[0025] The loading mechanism 1 includes a test box 11. A plurality of fixing components 2 are arranged in the test box 11. The fixing component 2 includes a pressing plate 21 arranged in the test box 11 and two clamping plates 22. A first adjusting component 3 and a second adjusting component 4 are arranged in the test box 11. The first adjusting component 3 is used to make the pressing plate 21 abut against the top of the battery, and the second adjusting component 4 is used to make the two clamping plates 22 respectively abut against both sides of the battery.

[0026] The connecting mechanism 5 includes two diversion belts 51 arranged in the test box 11. Through holes 52 are arranged on the diversion belts 51, and bolts 53 are inserted into the through holes 52, and the bolts 53 are threadedly connected to the ends of the batteries.

[0027] When in use, the battery is placed in the test box 11. The second adjusting component 4 is started. The second adjusting component 4 respectively pushes the two clamping plates 22 to move towards both sides of the battery, so that the clamping plates 22 gradually approach the battery and finally respectively abut against both sides of the battery, clamping the battery in the horizontal direction and restricting the movement of the battery in the horizontal direction. The first adjusting component 3 is started. The first adjusting component 3 pushes the pressing plate 21 to move downward, so that the pressing plate 21 gradually approaches the top of the battery and finally abuts against the battery, applying pressure to the battery from above and restricting the movement of the battery in the vertical direction.

[0028] Place two diversion bands 51 at the end positions of the battery, ensuring that the through holes 52 on the diversion bands 51 are aligned with the connection holes at the end of the battery. Pass the bolts 53 through the through holes 52 on the diversion bands 51 and screw them into the connection holes at the end of the battery. Firmly fix the diversion bands 51 on the battery through threaded connection. The diversion bands 51 are made of conductive materials. Through the connection of the bolts 53 with the battery, the current conduction between the battery and external test equipment or other batteries is realized, so as to perform battery performance tests or form battery packs and other operations.

[0029] In the present utility model, according to the specific size of the battery, the positions of the pressing plate 21 and the clamping plate 22 can be flexibly adjusted by adjusting the first adjusting component 3 and the second adjusting component 4 respectively to meet the fixing requirements of batteries of different specifications, which can reduce production costs.

[0030] To drive the movement of the two clamping plates 22, please refer to Figure 1 , in a preferred embodiment, the first adjusting component 3 includes a double-headed screw rod 31 rotatably connected in the test box 11. Threaded holes 32 are formed on the two clamping plates 22, and the two ends of the double-headed screw rod 31 are respectively threadedly connected to the two threaded holes 32.

[0031] During use, when it is necessary to adjust the position of the clamping plate 22 to clamp both sides of the battery, drive the double-headed screw rod 31 to rotate in the test box 11. Since threaded holes 32 are formed on the two clamping plates 22, and the two ends of the double-headed screw rod 31 are respectively threadedly connected to the two threaded holes 32. The thread of the double-headed screw rod 31 is divided into two sections, and the helix directions of the two sections of the thread are opposite. When the double-headed screw rod 31 rotates clockwise, the two clamping plates 22 simultaneously move towards the center position inside the test box 11 under the action of the thread. At this time, the two clamping plates 22 gradually approach both sides of the battery until they respectively abut against both sides of the battery, realizing the clamping and fixing of the battery. When the double-headed screw rod 31 rotates counterclockwise, the two clamping plates 22 simultaneously move away from the center position inside the test box 11, releasing the clamping of the battery so as to take out the battery or adjust the position of the battery. In this way, the synchronous reverse movement of the two clamping plates 22 is realized by the rotation of the double-headed screw rod 31, so that it can be flexibly adjusted according to the sizes of different batteries to ensure the stable clamping of the battery.

[0032] To drive the rotation of the double-headed screw rod 31, please refer to Figure 1 , in a preferred embodiment, a motor 6 is provided in the test box 11, and the output shaft of the motor 6 is coaxially connected to the end of the double-headed screw rod 31.

[0033] During use, when it is necessary to adjust the position of the clamping plate 22 to clamp the battery, the motor 6 is started. When the motor 6 operates, its output shaft begins to rotate. Since the output shaft of the motor 6 is coaxially connected to the end of the double-headed lead screw 31, the rotational movement of the output shaft of the motor 6 is transmitted to the double-headed lead screw 31. The double-headed lead screw 31 starts to rotate within the test box 11 under the drive of the motor 6. As described above, since the two threads on the double-headed lead screw 31 have opposite helix directions, and the two clamping plates 22 are provided with screw holes 32 threadedly connected to the double-headed lead screw 31, when the double-headed lead screw 31 rotates, the two clamping plates 22 will simultaneously move towards the central position inside the test box 11 under the action of the threads. Through the precise control of the motor 6, the position of the clamping plate 22 can be quickly and accurately adjusted to adapt to the clamping requirements of batteries of different sizes, improving the automation degree and working efficiency of the loading mechanism 1.

[0034] To reduce the possibility of the double-headed lead screw 31 rotating loose, please refer to Figure 2 , in a preferred embodiment, an anti-loosening gear 33 is coaxially provided on the double-headed lead screw 31, a clamping groove 34 is provided in the test box 11, and an anti-loosening tooth block 35 meshing with the anti-loosening gear 33 is clamped in the clamping groove 34.

[0035] During use, when the motor 6 drives the double-headed lead screw 31 to rotate and the two clamping plates 22 move to the appropriate positions and clamp the battery, the anti-loosening gear 33 and the anti-loosening tooth block 35 start to function. The anti-loosening gear 33 is coaxially arranged on the double-headed lead screw 31 and rotates with the rotation of the double-headed lead screw 31. When the clamping plate 22 clamps the battery in place, the anti-loosening gear 33 also stops rotating and is in a specific position. At this time, the anti-loosening tooth block 35 in the clamping groove 34 in the test box 11 meshes with the anti-loosening gear 33. Since the anti-loosening tooth block 35 is clamped in the clamping groove 34 and cannot move, when the anti-loosening tooth block 35 meshes with the anti-loosening gear 33, it will prevent the anti-loosening gear 33 from rotating. And the anti-loosening gear 33 is coaxial with the double-headed lead screw 31, preventing the anti-loosening gear 33 from rotating also prevents the double-headed lead screw 31 from rotating. This can prevent the double-headed lead screw 31 from accidentally rotating under the action of external vibration or other interference factors, resulting in the loosening of the clamping plate 22, thereby ensuring that the clamping plate 22 can stably clamp the battery and ensuring that the battery will not be displaced due to the loosening of the clamping plate 22 during the test, improving the stability and reliability of the test.

[0036] To improve the adaptability of the clamping plate 22, please refer to Figure 1 , in a preferred embodiment, the two clamping plates 22 are both inclined, and the two clamping plates 22 are lowered from the side away from each other to the side close to each other.

[0037] During use, when the battery is placed in the test box 11 and ready to be fixed, since the two clamping plates 22 are inclined and decrease from the side far away from each other to the side close to each other. During the operation, as the first adjustment component 3 makes the two clamping plates 22 approach each other, the inclined surface of the clamping plate 22 contacts the side surface of the battery. Due to the existence of the inclination angle, the adaptability is relatively strong, reducing the amplitude and frequency of the adjustment of the two clamping plates 22.

[0038] To drive the pressing plate 21 to move, please refer to Figure 1 , in a preferred embodiment, the second adjustment component 4 includes a spring 41 provided on the pressing plate 21. One end of the spring 41 is connected to the top of the pressing plate 21, and the other end of the spring 41 is connected to the test box 11. The spring 41 is in a compressed state, and the spring 41 causes the pressing plate 21 to have a tendency to slide in the direction of the clamping plate 22.

[0039] During use, in the initial state, the spring 41 is in a compressed state, with one end connected to the top of the pressing plate 21 and the other end connected to the test box 11. Due to the compression of the spring 41, a downward elastic force will be generated on the pressing plate 21. When the battery is placed in the test box 11, under the elastic force of the spring 41, the pressing plate 21 has a tendency to slide in the direction of the clamping plate 22. At this time, the elastic force of the spring 41 pushes the pressing plate 21 downward, causing the pressing plate 21 to gradually approach the top of the battery. As the pressing plate 21 approaches, finally the pressing plate 21 will abut against the top of the battery, and the elastic force of the spring 41 continuously acts on the pressing plate 21, applying pressure to the top of the battery, thereby realizing the fixation of the battery from above. If the height of the battery changes to a certain extent, due to the elastic characteristics of the spring 41, the spring 41 can be telescoped and adjusted within a certain range, always maintaining the downward pressure on the pressing plate 21, ensuring that the pressing plate 21 can closely abut against the top of the battery, adapting to batteries of different heights, and improving the versatility and stability of the loading mechanism 1.

[0040] To reduce the possibility of the battery slipping, please refer to Figure 1 , in a preferred embodiment, anti-slip layers 7 are provided on both sides of the pressing plate 21 close to the two clamping plates 22.

[0041] During use, on the one hand, it increases the friction between the pressing plate 21, the clamping plate 22 and the battery, preventing the movement of the battery. On the other hand, the anti-slip layer can be deformed to a certain extent according to the shape of the battery, better fitting the surface of the battery and improving the stability and reliability of the clamping.

[0042] To adapt to batteries of different sizes, please refer to Figure 3 , in a preferred embodiment, the flow guide belt 51 includes flow guide plates 511 and flow guide strips 512 arranged at intervals. The flow guide plates 511 and the flow guide strips 512 are slidably connected, and the through holes 52 are provided on the flow guide plates 511.

[0043] During use, the diversion strip 51 is composed of diversion plates 511 and diversion bars 512 arranged at intervals. The diversion plates 511 and the diversion bars 512 are slidably connected, which makes the diversion strip 51 have a certain degree of adjustability. According to the sizes and connection requirements of different batteries, the effective length of the diversion strip 51 can be adjusted by sliding the relative positions of the diversion plates 511 and the diversion bars 512. After adjusting the length of the diversion strip 51, align the through holes 52 on the diversion strip 51 with the ends of the battery, then pass the bolts 53 through the through holes 52 on the diversion plates 511 and screw them into the threaded holes at the ends of the battery to achieve a firm connection between the diversion strip 51 and the battery.

[0044] To further improve the adaptability of the diversion strip 51, please refer to Figure 3 , in a preferred embodiment, the diversion plates 511 are provided with wavy strips 513.

[0045] During use, the wavy strips 513 have a certain degree of ductility. During the test process, even if the battery undergoes a certain offset, the diversion plates 511 will not be damaged.

[0046] To improve the stability of the contact between the diversion plates 511 and the battery, please refer to Figure 3 , in a preferred embodiment, gaskets 54 are sleeved on the bolts 53.

[0047] During use, after the bolts 53 are tightened, they will exert a certain pressure on the diversion plates 511. The gaskets 54 can evenly disperse the pressure at the heads of the bolts 53 over a larger area of the diversion plates 511, which can avoid excessive local pressure from damaging the diversion plates 511 or causing deformation of the diversion plates 511, enabling the diversion plates 511 to remain flat under the fastening action of the bolts 53 and ensuring good contact with the ends of the battery.

[0048] To better understand the present invention, the working principle of a parallel connection device for a power battery test channel, one of the technical solutions of the present invention, will be described in detail below in conjunction with Figure 1 - Figure 3 Put the battery into the test box 11, start the second adjustment component 4, and the second adjustment component 4 respectively pushes the two clamping plates 22 to move towards both sides of the battery, making the clamping plates 22 gradually approach the battery and finally respectively abut against both sides of the battery to clamp the battery in the horizontal direction and restrict the movement of the battery in the horizontal direction. Start the first adjustment component 3, and the first adjustment component 3 pushes the pressing plate 21 to move downward, making the pressing plate 21 gradually approach the top of the battery and finally abut against the battery to apply pressure to the battery from above and restrict the movement of the battery in the vertical direction.

[0049] Place two diversion bands 51 at the end positions of the battery, ensuring that the through holes 52 on the diversion bands 51 are aligned with the connection holes at the battery ends. Pass bolts 53 through the through holes 52 on the diversion bands 51 and screw them into the connection holes at the battery ends. Firmly fix the diversion bands 51 on the battery through threaded connection. The diversion bands 51 are made of conductive materials. Through the connection of the bolts 53 with the battery, current conduction between the battery and external test equipment or other batteries is achieved, so as to perform battery performance tests or form battery packs and other operations.

[0050] The specific implementation manners of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model should be included within the protection scope of the claims of the present utility model.

Claims

1. A parallel device for a power battery test channel, characterized in that, Comprising: A loading mechanism, the loading mechanism includes a test box, multiple fixing components are arranged in the test box, the fixing components include a pressing plate and two clamping plates arranged in the test box, a first adjusting component and a second adjusting component are arranged in the test box, the first adjusting component is used to make the pressing plate abut against the top of the battery, and the second adjusting component is used to make the two clamping plates respectively abut against both sides of the battery; and, A connecting mechanism, the connecting mechanism includes two guiding belts arranged in the test box, through holes are arranged on the guiding belts, bolts are inserted through the through holes, and the bolts are threadedly connected to the ends of the batteries.

2. The parallel device for power battery test channels according to claim 1, wherein The first adjusting component includes a double-headed screw rod rotatably connected in the test box, screw holes are formed on the two clamping plates, and the two ends of the double-headed screw rod are respectively threadedly connected to the two screw holes.

3. The parallel device for a power battery test channel according to claim 2, wherein, A motor is arranged in the test box, and the output shaft of the motor is coaxially connected to the end of the double-headed screw rod.

4. The parallel device for a power battery test channel according to claim 2, characterized in that, A loosening prevention gear is coaxially arranged on the double-headed screw rod, a clamping groove is arranged in the test box, and a loosening prevention tooth block meshing with the loosening prevention gear is clamped in the clamping groove.

5. The parallel connection device for a power battery test channel according to claim 1, wherein Both of the two clamping plates are inclined, and the two clamping plates are lowered from the side far away from each other to the side close to each other.

6. The parallel connection device for a power battery test channel according to claim 1, wherein The second adjusting component includes a spring arranged on the pressing plate, one end of the spring is connected to the top of the pressing plate, the other end of the spring is connected to the test box, the spring is in a compressed state, and the spring makes the pressing plate tend to slide towards the clamping plate.

7. A parallel connection device for a power battery test channel according to claim 1, characterized in that, Anti-slip layers are arranged on the sides of the pressing plate and the two clamping plates close to each other.

8. A parallel device for a power battery test channel according to claim 1, characterized in that, The guiding belt includes guiding plates and guiding strips arranged at intervals, the guiding plates and the guiding strips are slidably connected, and the through holes are arranged on the guiding plates.

9. The parallel device for a power battery test channel according to claim 8, wherein Wave-shaped strips are arranged on the guiding plates.

10. The parallel device for a power battery test channel according to claim 1, characterized in that, A gasket is sleeved on the bolt.

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