Battery thermal management pipeline structure of hybrid loader power battery

Abstract

The utility model provides a battery heat management pipeline structure of a hybrid loader power battery, and belongs to the technical field of construction vehicles. The battery heat management system comprises a battery heat management assembly, wherein a water inlet of the battery heat management assembly is connected with a water outlet of a power battery assembly through a first branch pipeline; a water outlet of the battery heat management assembly is connected with a water inlet of the power battery assembly through a second branch pipeline; a water stop valve is arranged on each branch pipeline; and the second branch pipeline is respectively connected with a water outlet of the power battery assembly and a water drain valve through a three-way joint. By arranging the two water stop valves and the water drain valve, when the battery management system is disassembled, only part of cooling liquid needs to be discharged, the whole cooling liquid does not need to be discharged, the disassembling time is shortened, and the working efficiency is improved. A water drain valve is arranged, so that part of cooling liquid is discharged when the battery management system is disassembled, and cooling liquid pollution is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to construction vehicle technical field especially relates to a battery thermal management pipeline structure of hybrid loader power battery. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute the prior art.

[0003] The power battery assembly passes through battery cooling circulation system, motor electric control cooling circulation system and air conditioning warm air circulation system etc., ensures that the battery works in the optimum temperature range, thereby improves the performance and life of battery.In prior art, when needing to dismount the battery, since the battery and battery cooling circulation system are connected together, need to disconnect the relevant pipeline of cooling circulation system, in the process of dismounting, can cause the massive leakage of cooling liquid, causes the pollution of a large amount of cooling liquid;Or need to discharge all cooling liquid clean again and then carry out the dismounting work, when installing, still need to supplement the cooling liquid back, workshop installation time is long, and the working efficiency is low, increases the maintenance cost. UTILITY MODEL CONTENTS

[0004] The utility model provides a battery thermal management pipeline structure of hybrid loader power battery to solve the technical problem of massive leakage of cooling liquid in the process of dismounting power battery system, and low dismounting efficiency.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] The utility model provides a battery thermal management pipeline structure of hybrid loader power battery, including battery thermal management assembly, the water inlet of battery thermal management assembly is connected with the water outlet of power battery assembly through first branch pipeline;

[0007] The water outlet of battery thermal management assembly is connected with the water inlet of power battery assembly through second branch pipeline;

[0008] The stop valve is arranged on each branch pipeline respectively;

[0009] The second branch pipeline is connected with the water outlet of power battery assembly and drain valve through tee joint respectively.

[0010] Further, the first branch pipeline includes second pipeline, second intermediate pipeline and sixth pipeline connected in sequence.

[0011] Further, the second intermediate pipeline is connected with the second pipeline and sixth pipeline through the plate joint respectively at both ends.

[0012] Further, the second branch pipeline includes first pipeline, first intermediate pipeline and fifth pipeline connected in sequence.

[0013] Furthermore, the two ends of the first intermediate pipe are connected to the first pipe and the fifth pipe respectively through plate joints.

[0014] Furthermore, the battery thermal management assembly is located on top of the controller frame.

[0015] Furthermore, a water tank is placed on top of the battery thermal management assembly, and the water tank is equipped with an exhaust port and a water inlet.

[0016] Furthermore, a first opening is made on the first pipe, and the first opening is connected to the water inlet through a fourth pipe.

[0017] Furthermore, a second opening is made on the second pipe, and the second opening is connected to the exhaust port through a third pipe.

[0018] Furthermore, the water tank is also connected to an overflow pipe.

[0019] The technical solution of this utility model has the following beneficial effects:

[0020] 1. By setting up two stop valves and one drain valve, the battery management system only needs to drain a portion of the coolant during disassembly, instead of draining all of it. This shortens the disassembly time, avoids large-scale coolant leakage, and improves work efficiency.

[0021] 2. By setting a drain valve, some coolant can be released during disassembly of the battery management system to prevent coolant contamination.

[0022] 3. By setting multiple overboard connectors, the modularity of the power battery system can be improved, allowing for separate installation and vehicle mounting. When installation is required, assembly can be performed at the connector, improving overall modularity, facilitating installation, and reducing vehicle assembly time.

[0023] Advantages of the present invention in additional aspects 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

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the first branch pipeline and the second branch pipeline of this utility model.

[0027] Figure 3 It is the fifth pipeline and the sixth pipeline structure schematic view of the utility model.

[0028] Figure 4 It is the third pipeline and the fourth pipeline structure schematic view of the utility model.

[0029] Figure 5 It is the water release valve schematic view of the utility model.

[0030] Figure 6 It is the water stop valve schematic view of the utility model.

[0031] Figure 7 It is the through plate joint installation schematic view of the utility model.

[0032] Figure 8 It is the through plate joint structure schematic view of the utility model.

[0033] Mark in the drawing: 1, battery thermal management assembly, 2, power battery assembly, 3, water tank, 4, first branch pipeline, 5, second branch pipeline, 41, first intermediate pipeline, 42, second intermediate pipeline, 43, third pipeline, 44, fourth pipeline, 45, fifth pipeline, 46, sixth pipeline, 47, first pipeline, 48, second pipeline, 5, controller frame, 6, water release valve, 7, first water stop valve, 8, second water stop valve, 9, through plate joint, 91, metal plate, 92, hollow tube, 93, fixing hole, 10, overflow pipe. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs.

[0035] It should be noted that the terms used herein are only for the description of the specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model.

[0036] In the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0037] The utility model discloses a kind of battery thermal management pipeline structures of hybrid loader power battery;As shown in Figure 1 Water inlet of battery thermal management assembly 1 is connected with the water outlet of power battery assembly 2 by first branch pipeline 4;The water outlet of battery thermal management assembly 1 is connected with the water inlet of power battery assembly 2 by second branch pipeline 5;Water stop valve is respectively arranged on each branch pipeline;Second branch pipeline 5 is connected with the water outlet of power battery assembly 2 and water release valve 6 by three-way joint respectively.

[0038] In a specific embodiment, as shown in Figure 2 The first branch pipe 4 includes a second pipe 48, a second intermediate pipe 42 and a sixth pipe 46. The second branch pipe 5 includes a first pipe 47, a first intermediate pipe 41 and a fifth pipe 45.

[0039] The battery thermal management assembly 1 is connected to the water inlet of the power battery assembly 2 in sequence through the second pipe 48, the second intermediate pipe 42, the sixth pipe 46 and the water outlet of the battery thermal management assembly 1.

[0040] The battery thermal management assembly 1 is also connected to the water outlet of the battery thermal management assembly 1 through the first pipe 47, the first intermediate pipe 41, the fifth pipe 45 and the water inlet of the battery thermal management assembly 1.

[0041] In a specific embodiment, as shown in Figure 4 The battery thermal management assembly 1 is arranged on the top of the controller frame 5, and a water tank 3 is also arranged on the top of the battery thermal management assembly 1. The water tank 3 is provided with an exhaust port and a water supplement port. A first opening is formed on the first pipe 47, and the first opening is communicated with the water supplement port through the fourth pipe 44. A second opening is formed on the second pipe 48, and the second opening is communicated with the exhaust port through the third pipe 43. The openings are sealed at the connection positions with the pipes.

[0042] As shown in Figure 6 The first pipe 47 is provided with a second stop valve 8 between the fourth pipe 44 and the closest overboard joint 9. The second pipe 48 is provided with a first stop valve 7 between the third pipe 43 and the closest overboard joint 9. When the first stop valve 7 and the second stop valve 8 are both closed, the first pipe 47 is not communicated with the liquid in the battery cooling circulation system in the battery thermal management assembly 1, and the second pipe 48 is not communicated with the liquid in the battery cooling circulation system in the battery thermal management assembly 1.

[0043] The first pipe 47 is connected to the first intermediate pipe 41 and the fifth pipe 45 in sequence. The fifth pipe 45 is connected to the water outlet of the power battery assembly 2.

[0044] The second pipe 48 is connected to the second intermediate pipe 42 and the sixth pipe 46 in sequence. The sixth pipe 46 is connected to the water inlet of the power battery assembly 2.

[0045] As shown in Figure 3 and Figure 7 The first intermediate pipe 41 is connected to the first pipe 47 and the fifth pipe 45 through the overboard joints 9 at both ends, respectively. The second intermediate pipe 42 is connected to the second pipe 48 and the sixth pipe 46 through the overboard joints 9 at both ends, respectively. In this embodiment, the battery pack and the controller frame 5 can be separated by disassembling the overboard joints 9, so that they can be installed on the vehicle separately, which is convenient for transportation. When installed, the joints are assembled, which improves the overall modularity, is convenient for installation and reduces the assembly time of the whole vehicle.

[0046] In a specific embodiment, as shown in Figure 8 The through-plate joint 9 is composed of a metal plate 91 and a hollow pipe 92 passing through the metal plate 91. The metal plate 91 has two or more fixing holes 92 for fixing to the wall or other structure. The hollow pipe 92 passes through the metal plate 91, and the two ends of the hollow pipe 92 can be connected to other pipelines. The hollow pipe 92 is usually cylindrical, and the diameter can be selected as needed. The fixing holes 93 on the metal plate 91 are used to fix the joint to the wall or other structure by bolts or screws. The position and number of the fixing holes 93 can be adjusted according to the specific installation requirements. At the contact between the hollow pipe 92 and the metal plate 91, sealing materials such as rubber gaskets can be selected to prevent leakage or increase stability.

[0047] As shown in Figure 5 The sixth pipeline 46 is connected to the water drain valve 6 at one end and to the water inlet of the power battery assembly 2 at the other end through a tee joint.

[0048] When the water drain valve 6 is closed, the cooling liquid cannot flow out, and when the water drain valve 6 is opened, the cooling liquid is released, facilitating the recycling and reuse of the cooling liquid, reducing costs, and avoiding contamination of the cooling liquid.

[0049] As shown in Figure 4 The water tank 3 is also connected to an overflow pipe 10, which is used to prevent the water tank 3 from overflowing due to excessive liquid, prevent the problem of tank bursting caused by excessive liquid level, ensure smooth ventilation of the liquid, and balance the internal pressure of the system.

[0050] Principle of the utility model:

[0051] When the entire system is working normally, both water stop valves are kept open to facilitate the passage of cooling liquid in the pipeline, achieving cooling of the battery tank. When only the power battery assembly is removed, the first and second water stop valves can be closed, and the two pipelines between the two water stop valves and the air guide half-assembly and the water tank are closed, so that the cooling liquid in the pipeline near the battery thermal management assembly part of each water stop valve does not flow out, and then the water drain valve is opened to release the cooling liquid, causing the cooling liquid in the pipeline between the two water stop valves and the water drain valve to flow out. In this way, only a small amount of cooling liquid is released to achieve the removal of the power battery assembly, reducing labor intensity and maintenance cost, preventing contamination of the cooling liquid, and improving work efficiency.

[0052] Although the specific embodiments of the utility model have been described above in combination with the drawings, it is not a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications or variations made by those skilled in the art without creative labor on the basis of the technical solutions of the utility model are still within the protection scope of the utility model.

Claims

1. A battery thermal management duct structure for a hybrid loader power battery, characterized by, The battery thermal management assembly is connected with the water outlet of the power battery assembly through a first branch pipeline; The water outlet of the battery thermal management assembly is connected with the water inlet of the power battery assembly through a second branch pipeline; A water stop valve is arranged on each of the branch pipelines; The second branch pipeline is connected with the water outlet of the power battery assembly and a water drain valve through a tee joint.

2. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 1, characterised in that, The first branch pipeline comprises a second pipeline, a second intermediate pipeline and a sixth pipeline connected in sequence.

3. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 2, characterised in that, The second intermediate pipeline is connected with the second pipeline and the sixth pipeline through a through plate joint at both ends.

4. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 1, characterised in that, The second branch pipeline comprises a first pipeline, a first intermediate pipeline and a fifth pipeline connected in sequence.

5. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 4, characterised in that, The first intermediate pipeline is connected with the first pipeline and the fifth pipeline through a through plate joint at both ends.

6. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 1, wherein, The battery thermal management assembly is arranged on the top of the controller frame.

7. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 1, wherein, A water tank is arranged on the top of the battery thermal management assembly, and the water tank is provided with an exhaust port and a water supplement port.

8. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 7, characterised in that, A first opening is formed on the first pipeline, and the first opening is communicated with the water supplement port through a fourth pipeline.

9. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 7, wherein, A second opening is formed on the second pipeline, and the second opening is communicated with the exhaust port through a third pipeline.

10. A battery thermal management ducting structure for a hybrid loader power battery as claimed in claim 7, characterised in that, The water tank is further connected with an overflow pipe.

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