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A high-efficiency and energy-saving battery pack heater for new energy vehicles

A new energy vehicle, high-efficiency and energy-saving technology, applied in the field of new energy vehicle battery pack heaters, can solve the problems of large shell deformation, large space occupation, poor sealing effect, etc., achieve small structural design size, increase welding area, improve The effect of weld strength

Active Publication Date: 2020-10-02
杭州热威电热科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing new energy vehicle battery pack heater has a complex structure and a large volume, which leads to a large space; the upper and lower shells are usually welded, the shell is deformed and the sealing effect is poor; during the welding process, the solder is easy to melt when it melts. It flows to the outer surface of the workpiece and the welding strength is poor, and the heat exchange efficiency between the electric heating tube and the liquid is poor

Method used

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  • A high-efficiency and energy-saving battery pack heater for new energy vehicles
  • A high-efficiency and energy-saving battery pack heater for new energy vehicles
  • A high-efficiency and energy-saving battery pack heater for new energy vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: As shown in the figure, a high-efficiency and energy-saving new energy vehicle battery pack heater mainly includes an upper casing 1 and a lower casing 2, and the upper casing 1 is provided with an inlet pipe 3 and an outlet pipe 4. The inlet pipe 3 is arranged on the side of the upper casing 1 , and the outlet pipe 4 is arranged on the top surface of the upper casing 1 . A flange 9 is arranged between the upper shell 1 and the lower shell 2, and the upper shell 1 and the flange 9 form a heating chamber 13, and an electric heating tube 10 and a spoiler 8 are arranged in the heating chamber 13, and the liquid flows from the inlet pipe 3 flows through the heating chamber 13 and flows out from the outlet pipe 4, and the spoiler 8 forces the liquid flowing into the inner cavity of the electric heating tube 10 to flow to both sides ( figure 2 The middle arrow is the flow direction of the heating liquid); the spoiler 8 is set on the inner side of the electric h...

Embodiment approach

[0037] 1. After preparing the flange and forming the electric heating tube, put the electric heating tube into the flanging hole on the flange, then fix the nozzle by spot welding, and apply solder on the welding place;

[0038] 2. Prepare the spoiler;

[0039] 3. Squeeze the spoiler into the inner ring of the electric heating tube through deformation, and get stuck on the electric heating tube

[0040] 4. Prepare the inlet pipe, outlet pipe, temperature sensor joint, and fixed bracket, spot weld the fixed bracket, inlet pipe, outlet pipe, and temperature sensor joint according to the positions shown in the figure, and finally apply solder on the welding place;

[0041] 5. Prepare the annular welding sheet (thin sheet)

[0042] 6. The welding piece is transferred to the flange of the upper shell;

[0043] 7. Assemble the components in step 3 to the components in step 6, and then put them together in a high-temperature furnace for overall brazing

[0044] 8. Spot weld the we...

Embodiment 2

[0047] Embodiment 2: The difference with Embodiment 1 is: as Figure 11-Figure 12 The spoiler 8 is arranged in the heating chamber 13 close to the inlet pipe 3, and has a triangular bracket structure.

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Abstract

The invention discloses a high-efficiency energy-saving new energy vehicle battery pack heater which mainly comprises an upper casing and a lower casing. The upper casing is provided with an inlet pipe and an outlet pipe, a flange is arranged between the upper casing and the lower casing, a heating chamber is formed by the upper casing and the flange, an electric heating tube and a spoiler are arranged in the heating chamber, and the spoiler forcibly makes the liquid in the inner cavity of the electric heating tube to the two sides. The electric heating tube is of a spiral tube structure, andlead rods at both ends of the electric heating tube are disposed on the same side and extend through the flange to the lower casing to be connected with a lug. The upper casing is provided with flanging, and a flange outer ring is provided with a plurality of protrusions. When a soldering piece pressed between the flange and the middle of the upper casing is melted, solder automatically fills thegap under the action of capillary action. The flanging of the upper casing is integrally bent and riveted, and the upper casing and the lower casing are riveted and integrated and sealed through an annular seal ring. The heater has the advantages of compact structure, high heat exchange efficiency, high safety performance and high welding strength.

Description

technical field [0001] The invention relates to the field of heaters, and mainly relates to a high-efficiency and energy-saving new energy vehicle battery pack heater. Background technique [0002] The existing new energy vehicle battery pack heater has a complex structure and a large volume, which leads to a large space; the upper and lower shells are usually welded, the shell is deformed and the sealing effect is poor; during the welding process, the solder is easy to melt when it melts. It flows to the outer surface of the workpiece and the welding strength is poor, and the heat exchange efficiency between the electric heating tube and the liquid is poor. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a highly efficient and energy-saving battery pack heater for new energy vehicles. [0004] The purpose of the present invention is accomplished through the following technical solutions...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/635H01M10/6556H01M10/6568H01M10/6571
CPCH01M10/615H01M10/625H01M10/635H01M10/6556H01M10/6568H01M10/6571Y02E60/10
Inventor 柯伟民袁冬红胡小钦
Owner 杭州热威电热科技股份有限公司
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