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TP48200A-HT15D3 Outdoor Power System User Manual (Russia, Megafon)

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
TEC

TEC

The TEC controls the temperature inside the battery compartment. It consists of the TEC04C and TCUA.

TEC

Figure 3-14 shows a TEC04C.

Figure 3-14  TEC04C

(1) External circulation fan (2) External heat sink (3) Semiconductor refrigeration chip
(4) Internal heat sink (5) Internal circulation fan  

TCUA

The TCUA controls the running of the fans and refrigeration chip and monitors the TEC. It reports alarms when faults occur. Figure 3-15 shows a TCUA.

Figure 3-15  TCUA
(1) Power input port (2) External circulation fan port 1 (3) External circulation fan port 2
(4) Boolean value port (reserved) (5) Door status sensor port (6) E-label port (reserved)
(7) Indicator (8) Communications port 1 (9) Communications port 2
(10) Temperature sensor port 1 (11) TEC port (12) Internal circulation fan port 1
(13) Internal circulation fan port 2 (14) Temperature sensor port 2  

TEC Working Principle

The TEC cools and heats air over internal and external air circulation. Table 3-13 shows the TEC working principle. Figure 3-16 shows TEC airflow directions.

Table 3-13  TEC working principle

Function

Working Principle

Cooling

The TCUA controls the TEC04C to cool the internal circulation air. The internal fan draws the hot air inside the battery compartment into the internal heat sink. The internal heat sink cools the air and then returns the cooled air to the battery compartment from the air exhaust vent. At the same time, the external circulation fan draws the external circulation air into the external heat sink to accelerate the airflow. The air absorbs the heat and returns to the external environment from the air exhaust vent of the external heat sink. The air exchange between the internal and external environment is implemented so far.

Heating

The TCUA controls the TEC04C to heat the internal circulation air. The internal circulation fan draws the air inside the battery compartment into the internal heat sink. The internal heat sink heats the air and then returns the heated air to the battery compartment from the air exhaust vent. At the same time, the external circulation fan draws the external circulation air into the external heat sink to accelerate the airflow. The air gives out the heat and returns to the external environment from the air exhaust vent of the external heat sink.

Figure 3-16  TEC airflow directions
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Updated: 2019-03-05

Document ID: EDOC1000078967

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