RU2394307C1 - Storage battery with self-contained heat control system - Google Patents

Abstract

FIELD: electrical engineering. ^ SUBSTANCE: in compliance with this invention, storage battery (SB) with self-contained heat control system (HCS) consists of batteries fitted in openings of all-metal heat-conducting case and self-contained heat control system. The latter consists of one or several heat tubes in contact with sidewalls of SB side surfaces, radiator to remove heat and heaters. Radiator cab stays in contact with one or several heat tubes. ^ EFFECT: simple design and reduced weight. ^ 5 dwg

Description

The invention relates to electrical engineering and relates to rechargeable batteries (AB) with an autonomous thermal control system (CTP).

Known rechargeable battery 18NV-80 (Fig. 1, Fig. 2) for the KazSat spacecraft (Installation of heat exchanger panels on AB 78KS-7620-0), consisting of nickel-hydrogen accumulators (HBA) 1, installed in openings of an all-metal heat-conducting case 2, to the bottom of which a radiator 3 is connected. Heat removal from the electrode unit 4 of the NVA 1 is carried out radially to the case of AB 2, then to the bottom of the case of AB 2 and further to the radiator 3, installed directly to the bottom and providing heat dissipation due to thermal (infrared) radiation.

Thermoregulation is carried out by heaters located on the bottom of the battery (not shown in Fig.).

The disadvantage of this design is the additional mass of the housing AB 2, providing heat transfer from the electrode unit 4 to the radiator 3. In addition, excess weight arises due to the long current collectors 5, which also increases the internal resistance of the NVA 1.

The signs of the above design of the battery, common with the features of the proposed design of the battery with autonomous CTP, are as follows:

- NVA installed in the holes of the metal housing;

- the radiator provides heat removal due to thermal (infrared) radiation.

A known battery with an autonomous thermal control system (RF patent No. 2264954, publ. 27.01.05), adopted as a prototype and consisting of HBA 1, installed in the holes of an all-metal heat-conducting body 2, one or more axial heat pipes (ATT) 3, having thermal contact with the side surfaces of the battery case and with the evaporator 4 of the loop heat pipes (CTT) 5, which transfer heat to the radiator 6 (figure 3).

Thermoregulation is carried out automatically by the pressure regulator of the contour heat pipes 5, which is tuned during manufacture to the required temperature.

In this design (figure 4), the housing AB 2 has a minimum mass, since its height is equal to the height of the electrode unit 7 - of the heat-generating part of the HBA. In addition, the minimum length of the current collectors 8 helps to reduce internal resistance and mass.

The disadvantages of the prototype are the design complexity and the additional mass of the CTT (mainly KTT evaporators).

Signs of the prototype, common with the proposed battery with autonomous CTP, the following:

- NVA installed in the holes of the all-metal heat-conducting body;

- one or more ATTs have thermal contact with the side surfaces of the battery case;

- a radiator that provides heat dissipation due to thermal (infrared) radiation.

The technical result achieved in the proposed battery is to simplify the design of the battery and reduce its weight.

This is achieved by the fact that in an AB consisting of batteries installed in the holes of an all-metal heat-conducting case and equipped with an autonomous thermal control system consisting of one or more heat pipes having thermal contact with the side surfaces of the AB case, as well as a radiator and heaters, the radiator is located with the possibility of thermal contact with one or more heat pipes.

Distinctive features of the proposed AB, ensuring its compliance with the criterion of "novelty", are as follows: the radiator has direct thermal contact with one or more heat pipes.

It has been established that the use of an autonomous battery for temperature control by an autonomous system consisting of one or more heat pipes having thermal contact with the side surfaces of the battery housing and with a radiator that provides heat removal has not been found in literary sources and, therefore, is new, and together with known signs allows to obtain a qualitatively new result, namely: reducing the mass of the battery and simplifying the design of the battery.

Thus, the proposed AB with autonomous CTP, according to the authors, meets the criterion of "inventive step".

The proposed battery with autonomous STP is shown in Fig. 5 and consists of batteries 1 installed in the holes of the all-metal heat-conducting body 2. In addition, the battery consists of an autonomous thermal control system made of one or more heat pipes 3, radiator 4 and heaters 5. B An example of a specific implementation of AB 18NV-120K (ZhTsPI.563534.013) consists of a solid magnesium housing (ZhTsPI.30112.072), in the cylindrical openings of which are 18 accumulators NV-120K, two U-shaped ATTs (heat sink radiator TS-5077-0 IELU.067314.001 ), and having thermal contact with the side surfaces of the casing and the radiator (TS-6030-0 IELU.065148.001 radiation panel), which is installed using two glue-sealant Elasil 137-182, providing direct thermal contact with them.

Claims (1)

A rechargeable battery with an autonomous thermal control system, consisting of batteries installed in the holes of an all-metal heat-conducting body, and an autonomous thermal control system of which consists of one or more axial heat pipes having thermal contact with the side surfaces of the battery case, and, in addition, equipped with a radiator, providing heat dissipation and heaters, characterized in that the radiator has thermal contact with one or more axial heat pipes.

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