CN-224204172-U - Heat guarantee device, electric energy equipment and vehicle

CN224204172UCN 224204172 UCN224204172 UCN 224204172UCN-224204172-U

Abstract

The application discloses a heat guaranteeing device, electric energy equipment and a vehicle, which relate to the technical field of rail transit air conditioners, wherein the heat guaranteeing device comprises a liquid cooling branch used for circulating cooling liquid, the liquid cooling branch comprises a plurality of heater branches, a water return sub-branch and a water outlet Shui Zi branch, the plurality of heater branches are arranged in parallel, each heater branch is provided with a heater, each heater can independently control operation, the water return sub-branch is communicated with a first parallel node of the plurality of heater branches, the water outlet Shui Zi branch is communicated with a second parallel node of the plurality of heater branches, heating power of the heaters is Q, Q is a non-negative number, the number of the heater branches is N, N is a positive integer larger than 1, and the heating power of the heat guaranteeing device can be adjusted in multiple stages in the range of { kQ|k=0, 1. The heat protection device realizes the multi-stage adjustment of heating power and effectively solves the problem that a single high-power heater is difficult to accurately control the temperature in the prior art.

Inventors

JIANG MINGBAO
HOU XINCHUN
WU ZHIHAO
XU YUEQIN

Assignees

上海科泰运输制冷设备有限公司

Dates

Publication Date: 20260505
Application Date: 20250529

Claims (10)

1. The heat guaranteeing device is characterized by comprising a liquid cooling branch circuit for circulating cooling liquid, wherein the liquid cooling branch circuit comprises: the system comprises a plurality of heater branches, a plurality of control circuits and a plurality of control circuits, wherein each heater branch is provided with a heater and can be independently controlled to operate; a backwater sub-branch communicated with the first parallel nodes of the plurality of heater branches; A Shui Zi branch circuit communicated with the second parallel nodes of the plurality of heater branches; wherein the heating power of the heater is Q, and Q is a non-negative number; the number of the heater branches is N, and N is a positive integer greater than 1; the heating power of the heat protection device can be regulated in multiple stages in the range { kq|k=0, 1..n.
2. The heat protection device of claim 1, wherein the heater is provided with a plurality of heating circuits, the plurality of heating circuits being in communication with the heater branch, each heating circuit being capable of independently controlled operation; wherein the number of heating loops of the heater is n, and n is a positive integer greater than 1; The heating power of the heat protection device can be regulated in multiple stages in the range { kQ/n|k=0, 1.
3. The heat protection device of claim 1, further comprising: The water return main path is communicated with the water return sub-branch and is provided with a water return temperature sensor; a water outlet main path communicated with the Shui Zi branch path, wherein the water outlet main path is provided with a water outlet temperature sensor; The water return temperature sensor is used for detecting the water outlet temperature of the water outlet, and the water outlet temperature sensor is used for detecting the water outlet temperature of the water outlet.
4. The heat protection device of claim 1, further comprising a dry cooling branch disposed in parallel with the liquid cooling branch, the dry cooling branch being in communication with a dry cooler.
5. The heat protection device of claim 4, further comprising a heat exchanger provided with a refrigerant flow passage capable of heat exchange and a cooling liquid flow passage, wherein the refrigerant flow passage is communicated with a refrigeration circuit, and the cooling liquid flow passage is communicated with the liquid cooling branch passage.
6. The heat preservation apparatus of claim 5 wherein the refrigeration circuit communicates with one or more first heat exchange structures and the dry cooler comprises one or more second heat exchange structures and a refrigeration fan; The first heat exchange structure and the second heat exchange structure share the refrigeration fan.
7. The heat protection device of claim 6, wherein the plurality of first heat exchange structures are arranged in parallel and the plurality of second heat exchange structures are arranged in parallel.
8. The heat protection device of claim 6, wherein the heat exchanger is a plate heat exchanger, and/or, The first heat exchange structure and the second heat exchange structure adopt fin heat exchangers.
9. An electrical energy apparatus comprising a heat protection device according to any one of claims 1 to 8.
10. A vehicle comprising the electrical energy apparatus of claim 9.

Description

Heat guarantee device, electric energy equipment and vehicle Technical Field The application relates to the technical field of rail transit air conditioners, in particular to a heat guarantee device, electric energy equipment and a vehicle. Background Efficient operation of the heat protection device is critical to guaranteeing equipment performance and safety. With the development of technology, various battery heat protection devices are widely applied to the fields of new energy locomotives and the like so as to ensure that batteries run in a proper working temperature range, thereby prolonging the service life of the batteries and improving the performance of the batteries. Typically, these devices implement temperature control of the battery through complex liquid cooling and refrigeration circuits. However, existing heat protection devices have certain limitations in terms of electrical heating design. In the process of realizing the utility model, the inventor finds that at least the following problems exist in the prior art, namely, at present, in a liquid cooling loop of a conventional power battery heat guaranteeing device of a new energy locomotive, an electric heater is generally designed with single high power, and accurate control of temperature is difficult to realize in actual operation, so that temperature regulation is not stable enough. Disclosure of utility model The application aims to provide a heat guaranteeing device, which realizes the multi-stage adjustment of heating power and effectively solves the problem that a single high-power heater is difficult to accurately control the temperature in the prior art. Another object of the present application is to provide an electrical energy device and a vehicle. In order to achieve the above object, the present application provides a heat protecting device, including a liquid cooling branch for circulating a cooling liquid, the liquid cooling branch including: the system comprises a plurality of heater branches, a plurality of control circuits and a plurality of control circuits, wherein each heater branch is provided with a heater and can be independently controlled to operate; a backwater sub-branch communicated with the first parallel nodes of the plurality of heater branches; A Shui Zi branch circuit communicated with the second parallel nodes of the plurality of heater branches; wherein the heating power of the heater is Q, and Q is a non-negative number; the number of the heater branches is N, and N is a positive integer greater than 1; the heating power of the heat protection device can be regulated in multiple stages in the range { kq|k=0, 1..n. In some embodiments, the heater is provided with a plurality of heating circuits, the plurality of heating circuits being in communication with the heater branch, each heating circuit being capable of independently controlled operation; wherein the number of heating loops of the heater is n, and n is a positive integer greater than 1; The heating power of the heat protection device can be regulated in multiple stages in the range { kQ/n|k=0, 1. In some embodiments, the heat protecting device further comprises: The water return main path is communicated with the water return sub-branch and is provided with a water return temperature sensor; a water outlet main path communicated with the Shui Zi branch path, wherein the water outlet main path is provided with a water outlet temperature sensor; The water return temperature sensor is used for detecting the water outlet temperature of the water outlet, and the water outlet temperature sensor is used for detecting the water outlet temperature of the water outlet. In some embodiments, the heat protection device further comprises a dry-cold branch, the dry-cold branch is arranged in parallel with the liquid-cooled branch, and the dry-cold branch is communicated with a dry cooler. In some embodiments, the heat protection device further comprises a heat exchanger, wherein the heat exchanger is provided with a refrigerant flow passage and a cooling liquid flow passage, the refrigerant flow passage is communicated with a refrigeration loop, and the cooling liquid flow passage is communicated with the liquid cooling branch passage. In some embodiments, the refrigeration circuit is in communication with one or more first heat exchange structures, and the dry cooler comprises one or more second heat exchange structures and a refrigeration fan; The first heat exchange structure and the second heat exchange structure share the refrigeration fan. In some embodiments, the plurality of first heat exchange structures are arranged in parallel and the plurality of second heat exchange structures are arranged in parallel. In some embodiments, the heat exchanger is a plate heat exchanger, and/or, The first heat exchange structure and the second heat exchange structure adopt fin heat exchangers. The application also provides electric energy equipment comprising the