Kev Txhim Kho Keeb Kwm Ntawm Lub Freezer

Lub freezer, tseem hu ua lub tub yees, yog ib qho cuab yeej uas khaws cov zaub mov thiab lwm yam khoom ntawm qhov kub thiab txias. Muaj ob hom freezers: tsev thiab lag luam. Lub freezers coj mus muag yog siv hauv khw noj mov, tuav dej, ua zaub mov, thiab tsev loj.
Keeb kwm kev loj hlob
Xyoo 1834, qhov kev tshawb pom ntawm American Jacobi Perkins coj mus rau kev tsim lub tub yees. Scotsman John Harrison nrhiav tau qhov txias txias, thiab los ntawm 1862, nws thawj pawg tub yees tau nyob rau hauv khw. Thiab German engineer Carl von Linde ua thawj lub tsev tub yees hauv xyoo 1879. Tab sis cov tub yees tsis tau nkag mus rau hauv tsev neeg loj kom txog rau thaum tsim lub tub yees hluav taws xob hauv xyoo 1920. Thiab nrov tau nyob hauv Tebchaws Meskas hauv xyoo 1920.
Cov khoom siv tub yees hauv tsev tau tshwm sim hauv xyoo 1910. Xyoo 1913, Larson tau tsim thawj lub tsev tub yees ua haujlwm manually. Xyoo 1918, Lub Tuam Txhab Asmeskas Kelvinator tau muag cov tub yees hluav taws xob ntawm lub khw thawj zaug, muag 67 units rau xyoo ntawd. Xyoo 1926, American General Electric Company tau tsim lub ntiaj teb thawj lub tub yees nrog lub kaw lus kaw lub tub yees. Xyoo 1927, thawj tsev neeg nqus cov tub yees tau tshwm sim hauv Asmeskas kev ua lag luam thiab maj mam nrov hauv xyoo 1930. Nyob rau hauv 1939, ob chav compartment tau qhia rau kev lag luam siv los ntawm General Electric.