A cooling system for battery pack performance testing

Abstract

The present invention provides a cooling system for battery pack performance testing, comprising a battery performance tester, wherein the battery performance tester is arranged on an external side of a test box, a temperature control server is provided on one side of the battery performance tester, a control panel is provided on one side of the temperature control server, a temperature sensing device is embedded on one side of the internal side of the test box, and a cooling device is provided on the upper part of the test box. The invention sets the required temperature through the control panel, and the battery pack can be quickly cooled by the cooling device. When the temperature measured by the infrared temperature measuring gun reaches the set temperature, the cooling can be quickly stopped, which greatly reduces the test error rate, improves the test efficiency, and reduces the test cost.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production testing, and in particular to a cooling system for battery pack performance testing. Background Art

[0002] With the development of science and technology, electric vehicles are becoming increasingly popular in the civilian market. In general use of cars, the cruising range is a data that users are very concerned about. The most important factor affecting this data is the performance of the battery pack, which is also a very important part of electric vehicles. Electric vehicle power battery packs will undergo a large number of performance tests before installation to verify all aspects of the battery pack's performance.

[0003] Power battery pack testing involves many national standards, and many test items involve electrical performance tests under high or low temperature conditions.

[0004] Currently, it takes a long time for the battery cells in the battery pack to cool naturally from high temperature to room temperature, and the temperature of the battery pack needs to be monitored at all times, resulting in a high test error rate, low test efficiency, and high test costs. Summary of the Invention

[0005] In response to the above problems, the present invention provides a cooling system for battery pack performance testing, the purpose of which is to solve the technical problem of rapid cooling during battery pack performance testing proposed in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cooling system for battery pack performance testing, comprising a battery performance tester, wherein the battery performance tester is arranged on the external side of a test box, a temperature control server is provided on one side of the battery performance tester, a control panel is provided on one side of the temperature control server, a temperature sensing device is embedded on one side of the interior of the test box, and a cooling device is provided on the upper part of the test box.

[0007] Furthermore, the test box includes a box body, one side of the box body is hingedly connected to a box door, and the inner bottom surface of the box body is provided with a placement rack.

[0008] Furthermore, a battery test interface is embedded in one side of the box.

[0009] Furthermore, a window glass is embedded in the middle of the door, and a handle is provided on one side of the door.

[0010] Furthermore, the placement rack includes an outer frame, a plurality of support bars are provided in the middle of the outer frame, the cross sections of the plurality of support bars are all triangular, and the four corners of the bottom surface of the outer frame are respectively provided with lifting pillars.

[0011] Furthermore, the temperature sensing device is an infrared temperature measuring gun.

[0012] Furthermore, the cooling device includes a circulating liquid cooling mechanism, and a heat conducting agent supply mechanism is provided above the circulating liquid cooling mechanism.

[0013] Furthermore, the circulating liquid cooling mechanism includes a circulating pump, which is arranged on one side of the top surface of the test box. Circulating hoses are respectively provided at both ends of the circulating pump, and one end of each of the circulating hoses is respectively provided at both ends of the cooling plate. The top surface of the cooling plate is provided with multiple cooling downward pressure telescopic cylinders, and the upper parts of the multiple cooling downward pressure telescopic cylinders are provided in the middle of the top surface of the test box. The middle of the top surface of the cooling plate is provided at the lower end of the thermal conductive agent supply mechanism.

[0014] Furthermore, a circulation heat dissipation groove is provided inside the cooling plate, the input end of the cooling plate is connected to the output end of the circulation pump through the circulation hose, and the circulation hose at the output end of the cooling plate is connected to the input end of the circulation pump. A plurality of thermal conductive agent distribution grooves are provided in the middle of the cooling plate, and the middle parts of the plurality of thermal conductive agent distribution grooves are all connected to the thermal conductive agent inlet pipe, and the plurality of thermal conductive agent inlet pipes are all provided at the lower end of the thermal conductive agent supply mechanism.

[0015] Furthermore, the thermal conductor supply mechanism includes a supply motor, which is arranged on the top surface of the circulation pump through a bracket, and the output end of the supply motor is coaxially connected to one end of a pushing screw, and the pushing screw is rotatably connected to the middle part of the supply barrel, and the supply barrel is arranged on the top surface of the circulation pump through a bracket, and a feed hopper is provided at one end of the upper part of the supply barrel, and the output end of the supply barrel is sleeved and connected to one end of a supply hose, and the other end of the supply hose is arranged at the upper end of the supply branch pipe, and the multiple output ends of the supply branch pipe are respectively arranged at the upper ends of the thermal conductor inlet pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The required temperature is set through the control panel, and the battery pack can be quickly cooled down through the cooling device. When the temperature measured by the infrared temperature measuring gun reaches the set temperature, the cooling can be quickly stopped, which greatly reduces the test error rate, improves test efficiency and reduces test costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the system structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the appearance structure of the present invention A;

[0020] Figure 3 This is a schematic diagram B of the appearance structure of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the test box of the present invention;

[0022] Figure 5 It is a schematic cross-sectional view of the structure of the placement rack of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the cooling device of the present invention;

[0024] Figure 7 This is a schematic structural diagram of the circulating liquid cooling mechanism of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the cooling plate structure of the present invention;

[0026] Figure 9 Schematic diagram of the structure of the thermal conductive agent supply mechanism of the present invention;

[0027] Figure 10 It is a schematic side sectional view of the heat conductive agent supply mechanism structure of the present invention.

[0028] In the figure: 1. Battery performance tester; 2. Test box; 21. Box body; 211. Battery test interface; 22. Box door; 221. Window glass; 222. Handle; 23. Placement rack; 231. Outer frame; 232. Support bar; 233. Lifting pillar; 3. Temperature control server; 4. Control panel; 5. Temperature sensing device; 6. Cooling device; 61. Circulating liquid cooling mechanism; 611. Circulating pump; 612. Circulating hose; 613. Cooling plate; 6131. ​​Circulating heat dissipation trough; 6132. Thermal conductive agent distribution trough; 6133. Thermal conductive agent inlet pipe; 614. Cooling downward pressure telescopic cylinder; 62. Thermal conductive agent supply mechanism; 621. Supply motor; 622. Push screw; 623. Feed barrel; 624. Feed hopper; 625. Feed hose; 626. Feed branch pipe. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] For details, please refer to the examples Figure 1-3 A cooling system for battery pack performance testing includes a battery performance tester 1, which is arranged on the outside of a test box 2. A temperature control server 3 is provided on one side of the battery performance tester 1, and a control panel 4 is provided on one side of the temperature control server 3. A temperature sensing device 5 is embedded on one side of the interior of the test box 2, and a cooling device 6 is provided on the upper part of the test box 2.

[0033] For details, please refer to the examples Figure 4 The test box 2 includes a box body 21, one side of the box body 21 is hingedly connected to a box door 22, a placement rack 23 is provided on the inner bottom surface of the box body 21, a battery test interface 211 is embedded on one side of the box body 21, a window glass 221 is embedded in the middle of the box door 22, and a handle 222 is provided on one side of the box door 22.

[0034] For details, please refer to the examples Figure 5 The placement rack 23 includes an outer frame 231, and a plurality of support bars 232 are provided in the middle of the outer frame 231. The cross-sections of the plurality of support bars 232 are all triangular. The four corners of the bottom surface of the outer frame 231 are respectively provided with lifting pillars 233. This design is to allow the battery pack to be suspended in the air, and the contact area with the battery pack is reduced by the support bars 232 with triangular cross-sections.

[0035] In the embodiment, the temperature sensing device 5 is an infrared temperature measuring gun, which monitors the temperature of the battery pack in real time.

[0036] For details, please refer to the examples Figure 6 The cooling device 6 includes a circulating liquid cooling mechanism 61 , and a heat conducting agent supply mechanism 62 is provided above the circulating liquid cooling mechanism 61 .

[0037] For details, please refer to the examples Figure 7The circulating liquid cooling mechanism 61 includes a circulating pump 611, which is arranged on one side of the top surface of the test box 2. Circulating hoses 612 are respectively provided at both ends of the circulating pump 611, and one end of multiple circulating hoses 612 is respectively provided at both ends of a cooling plate 613. The top surface of the cooling plate 613 is provided with multiple cooling downward pressure telescopic cylinders 614, and the upper parts of the multiple cooling downward pressure telescopic cylinders 614 are provided in the middle of the top surface of the test box 2. The middle of the top surface of the cooling plate 613 is provided at the lower end of the thermal conductive agent supply mechanism 62. This design lowers the cooling plate 613 to the top surface of the battery pack through multiple cooling downward pressure telescopic cylinders 614, and circulates coolant into the cooling plate 613 through the circulating pump 611 to take away the heat of the battery pack, thereby cooling the battery pack.

[0038] For details, please refer to the examples Figure 8 A circulation heat dissipation groove 6131 is provided inside the cooling plate 613, and the input end of the cooling plate 613 is connected to the output end of the circulation pump 611 through the circulation hose 612. The circulation hose 612 at the output end of the cooling plate 613 is connected to the input end of the circulation pump 611. A plurality of thermal conductive agent distribution grooves 6132 are provided in the middle of the cooling plate 613, and the middle parts of the plurality of thermal conductive agent distribution grooves 6132 are all connected to the thermal conductive agent inlet pipe 6133. The plurality of thermal conductive agent inlet pipes 6133 are all provided at the lower end of the thermal conductive agent supply mechanism 62, and the heat is quickly conducted through the copper cooling plate 613, and the coolant circulates to quickly take away the heat.

[0039] For details, please refer to the examples Figure 9-10 The thermal conductive agent supply mechanism 62 includes a supply motor 621, which is arranged on the top surface of the circulation pump 611 through a bracket. The output end of the supply motor 621 is coaxially connected to one end of a pushing screw 622, and the pushing screw 622 is rotatably connected to the middle of a supply barrel 623. The supply barrel 623 is arranged on the top surface of the circulation pump 611 through a bracket. A feed hopper 624 is provided at one end of the upper part of the supply barrel 623. The output end of the supply barrel 623 is sleeved with one end of a supply hose 625, and the other end of the supply hose 625 is connected to the supply hose 625. The end is arranged at the upper end of the feeding branch pipe 626, and the multiple output ends of the feeding branch pipe 626 are respectively arranged at the upper ends of the thermal conductive agent inlet pipe 6133. This design drives the pushing screw 622 to rotate through the feeding motor 621, adds thermal grease into the feed hopper 624, and sends the thermal grease from the output end of the feeding barrel 623 into the feeding hose 625 through the pushing screw 622, and then introduces it into multiple thermal conductive agent inlet pipes 6133 through the feeding branch pipe 626, and then sends the thermal grease along the thermal conductive agent distribution groove 6132 to the bottom surface of the cooling plate 613, thereby improving the heat transfer efficiency.

[0040] Operating principle: First, set the required temperature of the battery pack during subsequent testing through the control panel, monitor the temperature of the battery pack in real time through the infrared temperature measuring gun of the temperature sensing device 5, and lower the cooling plate 613 to the top surface of the battery pack through multiple cooling and pressing telescopic cylinders 614. The copper cooling plate 613 conducts heat quickly, and coolant is circulated into the cooling plate 613 through the circulating pump 611 to take away the heat of the battery pack, thereby cooling the battery pack. The push screw 622 is driven to rotate by the supply motor 621 , add thermal grease to the feed hopper 624, and send the thermal grease from the output end of the feed barrel 623 into the feed hose 625 through the push screw 622, and then introduce it into multiple thermal conductive agent inlet pipes 6133 through the feed branch pipe 626, and then send the thermal grease along the thermal conductive agent distribution groove 6132 to the bottom surface of the cooling plate 613, so as to improve the heat transfer efficiency. When the battery pack temperature reaches the set temperature, the cooling plate 613 is raised by multiple cooling and pressing telescopic cylinders 614, and the process is completed.

[0041] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A cooling system for battery pack performance testing, comprising a battery performance tester (1), characterized in that: The battery performance tester (1) is arranged on one side of the exterior of the test box (2); a temperature control server (3) is provided on one side of the battery performance tester (1); a control panel (4) is provided on one side of the temperature control server (3); a temperature sensing device (5) is embedded on one side of the interior of the test box (2); and a cooling device (6) is provided on the upper portion of the test box (2); The cooling device (6) includes a circulating liquid cooling mechanism (61), and a heat conducting agent supply mechanism (62) is provided above the circulating liquid cooling mechanism (61); The circulating liquid cooling mechanism (61) includes a circulating pump (611), which is arranged on one side of the top surface of the test box (2), and a circulating hose (612) is respectively provided at both ends of the circulating pump (611), and one end of a plurality of the circulating hoses (612) is respectively provided at both ends of a cooling plate (613), and a plurality of cooling downward pressure telescopic cylinders (614) are provided on the top surface of the cooling plate (613), and the upper parts of the plurality of cooling downward pressure telescopic cylinders (614) are arranged in the middle of the top surface of the test box (2), and the middle of the top surface of the cooling plate (613) is arranged at the lower end of the heat conductive agent supply mechanism (62).

2. A cooling system for battery pack performance testing according to claim 1, characterized in that: The test box (2) comprises a box body (21), one side of the box body (21) is hingedly connected to a box door (22), and a placement rack (23) is provided on the inner bottom surface of the box body (21).

3. A cooling system for battery pack performance testing according to claim 2, characterized in that: A battery test interface (211) is embedded on one side of the box (21).

4. A cooling system for battery pack performance testing according to claim 2, characterized in that: A window glass (221) is embedded in the middle of the door (22), and a handle (222) is provided on one side of the door (22).

5. The cooling system for battery pack performance testing according to claim 2, characterized in that: The placement rack (23) comprises an outer frame (231), a plurality of support bars (232) are provided in the middle of the outer frame (231), the cross sections of the plurality of support bars (232) are all arranged in a triangular shape, and four corners of the bottom surface of the outer frame (231) are respectively provided with raising pillars (233).

6. The cooling system for battery pack performance testing according to claim 1, characterized in that: The temperature sensing device (5) is an infrared temperature measuring gun.

7. The cooling system for battery pack performance testing according to claim 1, characterized in that: A circulating heat dissipation groove (6131) is provided inside the cooling plate (613), the input end of the cooling plate (613) is connected to the output end of the circulating pump (611) through the circulating hose (612), and the circulating hose (612) at the output end of the cooling plate (613) is connected to the input end of the circulating pump (611). A plurality of heat conductive agent distribution grooves (6132) are provided in the middle of the cooling plate (613), and the middle parts of the plurality of heat conductive agent distribution grooves (6132) are all connected to the heat conductive agent introduction pipe (6133), and the plurality of heat conductive agent introduction pipes (6133) are all provided at the lower end of the heat conductive agent supply mechanism (62).

8. The cooling system for battery pack performance testing according to claim 7, characterized in that: The thermal conductive agent supply mechanism (62) includes a supply motor (621), which is arranged on the top surface of the circulation pump (611) through a bracket. The output end of the supply motor (621) is coaxially connected to one end of a pushing screw (622), and the pushing screw (622) is rotatably connected to the middle part of a supply barrel (623). The supply barrel (623) is arranged on the top surface of the circulation pump (611) through a bracket. A feed hopper (624) is provided at one end of the upper part of the supply barrel (623). The output end of the supply barrel (623) is sleeved and connected to one end of a supply hose (625). The other end of the supply hose (625) is arranged at the upper end of a supply branch pipe (626). The multiple output ends of the supply branch pipe (626) are respectively arranged at the upper end of the thermal conductive agent inlet pipe (6133).

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