Humidifier unit for refrigerated display cabinets

A humidifier unit comprising:

• a hollow casing body,
• a horizontally elongate atomizing water tank of stainless steel disposed in one side of said body and having a plurality of ultrasonic vibrators mounted on a bottom thereof and arrayed in a transverse direction thereof,
• an air blower disposed in an opposite side of said body for supplying air drawn from a suction port of said body into said atomizing water tank,
• a plurality of outlet pipes rotatably mounted on a member located above said atomizing water tank in coaction with said ultrasonic vibrators, respectively, for transferring a mist generated by said ultrasonic vibrators in said atomizing water tank and air from said air blower out of said body,
• a cooling plate fixed to an outer surface of a wall of said atomizing water tank,
• an ultrasonic oscillator for actuating said ultrasonic vibrator to atomize water in said atomizing water tank, and
• a circuit board supporting circuit components of said ultrasonic oscillator and fixed to said cooling plate, said circuit components including an oscillation output element fixed to said cooling plate in spaced relation to said circuit board and electrically insulated from said wall of said atomizing water tank.

A humidifier unit comprising:

• a hollow casing body,
• a horizontally elongate atomizing water tank disposed in one side of said body and having a plurality of ultrasonic vibrators mounted on a bottom thereof and arrayed in a transverse direction thereof,
• an air blower disposed in a opposite side of said body for supplying air drawn from a suction port of said body into said atomizing water tank,
• a plurality of outlet pipes having lower ends located above said atomizing water tank and mounted in coaction with said ultrasonic vibrators, respectively, for transferring a mist generated by said ultrasonic vibrators in said atomizing water tank and air from said air blower out of said body, and
• a member closing an upper opening of said atomizing water tank and having a plurality of circular holes in which said outlet pipe lower ends are fitted,
• said outlet pipes comprising hollow cylindrical bent pipes having connector mouths opening laterally and rotatably extending through said lid member,
• said outlet pipes having annular ridges around outer peripheral surfaces thereof, further including seal gaskets fitted around said outlet pipes respectively and sandwiched between said annular ridges and upper surfaces of said member around said circular holes, and a retaining plate fixed to said member for preventing said outlet pipes from being removed.

A humidifier unit comprising:

• a hollow casing body,
• a horizontally elongate atomizing water tank disposed in one side of said body and having a plurality of ultrasonic vibrators mounted on a bottom thereof and arrayed in a transverse direction thereof,
• an air blower disposed in an opposite side of said body for supplying air drawn from a suction port of said body into said atomizing water tank,
• a plurality of outlet pipes having lower ends located above said atomizing water tank and mounted in coaction with said ultrasonic vibrators, respectively, for transferring a mist generated by said ultrasonic vibrators in said atomizing water tank and air from said air blower out of said body,
• a lid member closing an upper opening of said atomizing water tank and having a plurality of circular holes in which said outlet pipe lower ends are fitted,
• annular members around outer peripheral surfaces of the outlet pipes,
• seal gaskets fitted around said outlet pipes respectively and located between said annular members and upper surfaces of said lid member around said circular holes, and
• a retaining plate fixed to said lid member to sandwich at least the lowermost annular members and seal gaskets between upper surfaces of said lid member and a lower surface of said retaining plate, thereby said outlet pipe being freely rotatable with respect to said retaining plate and being prevented from being removed.