Warm-up and temperature preservation apparatus for energy storage batteries in cold regions

Patent metadata

Field	Value
Publication number	US-12489155-B1
Application number	US-202519223220-A
Country	US
Kind code	B1
Filing date	May 30, 2025
Priority date	May 30, 2024
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

This thermal management apparatus for energy storage batteries in cold regions combines a battery enclosure and a diesel-fired circulation heater. The enclosure comprises an enclosure body with dual-layer outer/inner housings separated by a first vacuum insulation layer, and a cover mounted atop the enclosure body containing a second vacuum layer. The inner housing incorporates a water reservoir interlayer connected to two upper-mounted delivery pipes. The cover features water delivery ports fitted with adapters coupling to the pipes, along with a cable routing hole accessing the inner housing. The heater forms a closed hydraulic loop by connecting its inlet and outlet to respective adapters. A temperature sensor installed on the inner housing's interior wall is linked to the heater for operational control. The dual vacuum insulation layers synergize with the circulating water system to maintain optimal battery temperature while minimizing heat dissipation.

First claim

What is claimed is:

1 . A warm-up and temperature preservation apparatus for an energy storage battery in cold regions, comprising: a battery enclosure and a diesel-fired circulation heater, wherein the battery enclosure comprises an enclosure body and an upper cover, the enclosure body comprising an outer housing and an inner housing disposed in the outer housing; a first vacuum interlayer is set between the inner housing and the outer housing, the first vacuum interlayer being distributed along sidewalls and a bottom portion of the enclosure body; a water storage interlayer is set inside the inner housing and extends communicatively through sidewalls and a base board thereof; two water delivery pipes communicating with the water storage interlayer are disposed on top of the inner housing; the upper cover is mounted on top of the enclosure body; a silicon gasket for sealing is arranged at a joint between the upper cover and the enclosure body; a second vacuum interlayer is set inside the upper cover; water delivery holes and a routing hole are provided on the upper cover, a count of the water delivery holes corresponding to that of the water delivery pipes; a water delivery pipe adaptor is mounted at each water delivery hole, the water delivery pipe adaptor communicating with the water delivery pipe corresponding thereto; and an input end of the diesel-fired circulation heater communicates with one water delivery pipe adaptor, an output end of the diesel-fired circulation heater communicates with another water delivery pipe adaptor, and the routing hole communicates with the inner housing;
wherein a temperature sensor is provided at an inner wall of the inner housing, the temperature sensor being connected to the diesel-fired circulation heater; and wherein the inner housing is connected to the outer housing via an upper connection beam and a lower connection beam; a first snap block is disposed at an outer side of a top portion of each of two opposite sidewalls of the outer housing, a first snap-in recess is arranged at an inner side of a top portion of each of two opposite sidewalls of the inner housing, a second snap-in recess is arranged under one side of the lower connection beam, and a third snap-in recess is arranged above an opposite side of the lower connection beam, the first snap block being fitted in the second snap-in recess; and a second snap block and a third snap block are disposed at two ends of the upper connection beam, respectively, the second snap block being fit in the first snap-in recess, the third snap block being fit in the third snap-in recess.

2 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 1 , further comprising a cooling system, the cooling system comprising a cold water tank and a water pump, an input end of the water pump being connected to the cold water tank;
the water delivery pipe adaptors are three-way water delivery pipe adaptors, three channels of one three-way water delivery pipe adaptor being connected to the water delivery hole corresponding thereto, the input end of the diesel-fired circulation heater, and the cold water tank, respectively, and three channels of another three-way water delivery pipe adaptor being connected to the water delivery hole corresponding thereto, the output end of the diesel-fired circulation heater, and an output end of the water pump, respectively; and the temperature sensor is connected to the water pump.

3 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 1 , wherein a first male thread is formed on an outer wall of each water delivery pipe, a first female thread is formed on an inner wall of a channel, which communicates with the water delivery pipe, of each water delivery pipe adaptor, an outer wall of each water delivery pipe is sleeved with a first silicon seal ring, each water delivery pipe adaptor is connected to the water delivery pipe corresponding thereto via fitting between the first male thread and the first female thread, the first silicon seal ring is disposed between each water delivery pipe adaptor and the top portion of the inner housing, and each water delivery pipe adaptor compresses the first silicon seal ring corresponding thereto.

4 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 2 , wherein a first male thread is formed on an outer wall of each water delivery pipe, a first female thread is formed on an inner wall of a channel, which communicates with the water delivery pipe, of each water delivery pipe adaptor, an outer wall of each water delivery pipe is sleeved with a first silicon seal ring, each water delivery pipe adaptor is connected to the water delivery pipe corresponding thereto via fitting between the first male thread and the first female thread, the first silicon seal ring is disposed between each water delivery pipe adaptor and the top portion of the inner housing, and each water delivery pipe adaptor compresses the first silicon seal ring corresponding thereto.

5 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 1 , wherein a diameter of a lower portion of the routing hole is smaller than that of an upper portion of the routing hole; a routing bolt is disposed in the upper portion of the routing hole, a through hole being provided inside the routing bolt; a second male thread is formed on an outer wall of the routing bolt, a second female thread is formed on an inner wall of the upper portion of the routing hole, and a second silicon seal ring is provided in the upper portion of the routing hole; the routing bolt is connected to the routing hole via fitting between the second male thread and the second female thread; and the second silicon seal ring is disposed underneath the routing bolt, the routing bolt compressing the second silicon seal ring.

6 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 1 , wherein a first slot and a second slot are provided at each of two sides of a bottom portion of the upper cover, top portions of two sidewalls of the inner housing where the upper connection beam is not disposed are inserted in the first slots, and top portions of two sidewalls of the outer housing where the upper connecting beam is not disposed are inserted in the second slots.

7 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 6 , wherein the silicon gasket is disposed at an underside of the upper cover, an inner wall of the first slot, and an inner wall of the second slot, respectively; and the silicon gasket is also provided for sealing at an interface between the upper connection beam and an inner housing, an interface between the lower connection beam and the outer housing, and an interface between the upper connection beam and the lower connection beam, respectively.

8 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 1 , wherein a thermally insulative coating is applied on an inner wall of the outer housing, an outer wall of the inner housing, and the underside of the upper cover, respectively.

9 . The warm-up and temperature preservation apparatus for an energy storage battery in cold regions according to claim 1 , wherein a suction tube communicating with the first vacuum interlayer is provided on the outer housing, and a one-way valve is provided in the suction tube.

10 . The warm-up and temperature preservation apparatus for an e

Assignees

• Univ Shandong Science & Tech

Inventors

• Hu Xiangming
• Xu Hengyu
• Shang Boxuan
• Yin Shuaishuai
• Yang Zhiyuan
• Li Mingming
• Wang Qingsong
• Li Xiaoping
• Han Guoyu
• Deng Yurui
• Li Yaru
• Dong Hao

Classifications

• H01M10/6556

  Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) · CPC title

• H01M10/486

  for measuring temperature · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M10/6567

  Liquids · CPC title

• H01M10/658

  by thermal insulation or shielding · CPC title