CN-224204171-U - Heat guarantee device, electric energy equipment and vehicle

CN224204171UCN 224204171 UCN224204171 UCN 224204171UCN-224204171-U

Abstract

The application discloses a heat guaranteeing device, electric energy equipment and a vehicle, which relate to the technical field of rail traffic air conditioners, wherein a liquid cooling branch of the heat guaranteeing device comprises a water return sub-branch, a water outlet Shui Zi branch, a second heating branch and one or more first heating branches, wherein the second heating branch is arranged in parallel, each first heating branch is provided with a first heater, the second heating branch is provided with a second heater and a flow regulating piece, the heating power of the first heater is Q1, Q1 is a non-negative number, the heating power of the second heater is Q2, Q2 is a non-negative number, the number of the first heating branches is N, N is a natural number larger than 0, and the heating power of the heat guaranteeing device can be adjusted steplessly in the range of { kQ2+NQ1|k E [0,1] }, and k is the adjusting range of the flow regulating piece. The heat guaranteeing device realizes stepless adjustment of heating power, effectively solves the problem that a single high-power electric heater is difficult to flexibly adjust the temperature of cooling liquid in the prior art, and improves the stability and adaptability of temperature control.

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: A water return sub-branch and a water outlet Shui Zi branch, and a water outlet sub-branch arranged in parallel between the water return sub-branch and the water outlet sub-branch: One or more first heating branches, each of which is provided with a first heater; the second heating branch is provided with a second heater and a flow regulating piece, and the flow of the cooling liquid flowing through the second heater is regulated through the flow regulating piece; Wherein the heating power of the first heater is Q1, and Q1 is a non-negative number; the heating power of the second heater is Q2, and Q2 is a non-negative number; the number of the first heating branches is N, and N is a natural number greater than 0; The heating power of the heat protection device can be adjusted steplessly in the range of { kQ2+NQ1|k E [0,1] }, and k is the adjusting range of the flow adjusting piece.
2. The heat protection device of claim 1, further comprising a main water outlet path in communication with the Shui Zi branches, the main water outlet path having a water outlet temperature sensor; the opening and closing degree of the flow regulating piece is regulated and controlled according to the detection temperature of the water outlet temperature sensor.
3. The heat shield apparatus according to claim 1, wherein the heating power Q1 of the first heater and the heating power Q2 of the second heater are equal to Q, Q being a non-negative number; The heating power of the heat protection device can be adjusted steplessly in the range of { (k+N) Q|k ε [0,1] }.
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 defined in claim 5 further comprising a water return main and a water outlet main, the water return main being in communication with the first parallel node of the liquid cooling branch and the dry cooling branch, the water outlet main being in communication with the second parallel node of the liquid cooling branch and the dry cooling branch; The water return main path is provided with a water return temperature sensor, the water outlet main path is provided with a water outlet temperature sensor, the liquid cooling branch path is provided with a first control valve, and the dry cooling branch path is provided with a second control valve; When the heat guarantee device is in a common refrigeration mode, the refrigeration loop works, the first control valve is opened, and the second control valve is closed; When the heat guaranteeing device is in a common heating mode, the refrigerating circuit stops working, the first control valve is opened, and the second control valve is closed; When the heat protection device is in an energy-saving mode, the refrigeration loop stops working, the first control valve is opened, the second control valve is opened, and the opening and closing degrees of the first control valve and the second control valve are adjusted and controlled according to the detection temperatures of the backwater temperature sensor and the effluent temperature sensor; when the heat protection device is in a mixing mode, the refrigeration loop works, the first control valve is opened, the second control valve is opened, and the opening and closing degree of the first control valve and the second control valve are adjusted and controlled according to the detection temperature of the backwater temperature sensor and the detection temperature of the water outlet temperature sensor.
7. 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.
8. The heat protection device of claim 7, wherein the plurality of first heat exchange structures are arranged in parallel and the plurality of second heat exchange structures are arranged in parallel.
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 the temperature of cooling liquid is difficult to flexibly adjust according to actual requirements, so that the temperature adjustment is not stable enough. Disclosure of utility model The application aims to provide a heat guaranteeing device, which realizes stepless regulation of heating power, effectively solves the problem that a single high-power electric heater is difficult to flexibly regulate the temperature of cooling liquid in the prior art, and improves the stability and adaptability of temperature control. 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: A water return sub-branch and a water outlet Shui Zi branch, and a water outlet sub-branch arranged in parallel between the water return sub-branch and the water outlet sub-branch: One or more first heating branches, each of which is provided with a first heater; the second heating branch is provided with a second heater and a flow regulating piece, and the flow of the cooling liquid flowing through the second heater is regulated through the flow regulating piece; Wherein the heating power of the first heater is Q1, and Q1 is a non-negative number; the heating power of the second heater is Q2, and Q2 is a non-negative number; the number of the first heating branches is N, and N is a natural number greater than 0; The heating power of the heat protection device can be adjusted steplessly in the range of { kQ2+NQ1|k E [0,1] }, and k is the adjusting range of the flow adjusting piece. In some embodiments, the heat guarantee device further comprises a water outlet main channel communicated with the Shui Zi branch channel, and the water outlet main channel is provided with a water outlet temperature sensor; the opening and closing degree of the flow regulating piece is regulated and controlled according to the detection temperature of the water outlet temperature sensor. In some embodiments, the heating power Q1 of the first heater and the heating power Q2 of the second heater are equal to Q, Q being a non-negative number; The heating power of the heat protection device can be adjusted steplessly in the range of { (k+N) Q|k ε [0,1] }. 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 heat protection device further comprises a water return main path and a water outlet main path, wherein the water return main path is communicated with a first parallel node of the liquid cooling branch path and the dry cooling branch path, and the water outlet main path is communicated with a second parallel node of the liquid cooling branch path and the dry cooling branch path; The water return main path is provided with a water return temperature sensor, the water outlet main path is provided with a water outlet temperature sensor, the liquid cooling branch path is provided with a first control valve, and the dry cooling branch path is provided with a second control valve; When the heat guarantee device is in a common refrigeration mode, the refrigeration loop