Converter valve for room temperature magnetic refrigerator and room temperature magnetic refrigerator thereof

Abstract

The invention discloses a converter valve for a room temperature magnetic refrigerator. The converter valve for the room temperature magnetic refrigerator comprises a valve core and two valve bodies,wherein a sealing groove and a plurality of connecting through holes are formed in the inner side end face of each valve body, the sealing grooves are located on the inner sides of the connecting through holes, and sealing rings are arranged in the sealing grooves; valve core concave platforms are arranged on the inner sides of the sealing grooves, wherein a plurality of fluid through holes are formed in the valve core concave platforms, central through holes are formed in the axis of the valve core concave platforms, and each valve core concave platforms is in an annular shape; the valve corecomprises valve core rods and a valve core disk, wherein two valve core through holes are formed in the valve core disk, and the ends of the two valve core rods are correspondingly connected to the two sides of the valve core disk and located on the same axis; after the two valve bodies are closed, the two valve core rods correspondingly sleeve the interiors of the two central through holes, andthe valve core disk is located in the two valve core concave platforms; and a bolt penetrates through the connecting through holes to fixedly connect the two valve bodies. The invention further discloses a room temperature magnetic refrigerator. The converter valve for the room temperature magnetic refrigerator and the room temperature magnetic refrigerator thereof have the advantages of simple structure, small size, high integration degree, no noise in the commutation process and the like.

Description

Technical field [0001] The invention relates to a room temperature magnetic refrigeration technology, in particular to a converter valve for a room temperature magnetic refrigerator and a room temperature magnetic refrigerator. Background technique [0002] Magnetic refrigeration is developed by using the principle of the magnetocaloric effect of magnetic materials, that is, magnetic materials will produce entropy changes in a changing magnetic field, accompanied by changes in their own temperature. When the external magnetic field of the magnetic material increases, the magnetic entropy decreases and heat is released; when the external magnetic field decreases, the magnetic entropy increases and absorbs heat. Compared with gas compression refrigeration, magnetic refrigeration has the following obvious advantages: [0003] (1) Energy saving: The cycle efficiency of magnetic refrigeration is as high as 50%, which is 20% higher than gas compression refrigeration, so the energy savin...

AI Technical Summary

Problems solved by technology

At the same time, the commutation system composed of 5 solenoid valves is bulky and has low reliability

Due to the complex structure and large volume of the fluid exchange system, and the switching of the solenoid valve generates large noise and heat, it is not conducive to the integration, miniaturization, lightweight and silent design of the magnetic refrigerator

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