US 2022/0088632 A1 · APPLICATOR WITH AT LEAST ONE PUMP HAVING THERMAL BARRIER AND ACTIVE COOLING

Abstract

In one example, a pump assembly configured to connect to a manifold of an applicator includes a pump, a drive motor unit, and a thermal isolation region. The drive motor unit includes an output drive shaft connected to the pump and a drive motor configured to rotate the output drive shaft about a drive axis. The thermal isolation region is between the pump and the drive motor. The thermal isolation region includes an isolation plate and a thermal isolation frame. In one example, a cooling sleeve surrounds a proximal end portion of the drive motor unit so as to define an air flow passage between the proximal end portion of the drive motor unit and an inner surface of the cooling sleeve. In one example, the pump assembly further includes a coupling operatively connecting the pump and the drive shaft, the coupling including an insulating element therein.

Claims20

Dependent claims

A pump assembly configured to connect to a manifold of an applicator for dispensing hotmelt adhesive, the pump assembly comprising:

an inlet for receiving a hotmelt adhesive and an outlet in fluid communication with the manifold;
a pump;
a drive motor unit operable for pumping the hotmelt adhesive from the inlet to the outlet, the drive motor unit including an output drive shaft connected to the pump and a drive motor configured to rotate the output drive shaft about a drive axis;
and
a thermal isolation region between the pump and the drive motor, the thermal isolation region including:
an isolation plate formed from a thermally insulating material;
and
a thermal isolation frame having a first end and a second end offset from one another along the drive axis, the thermal isolation frame defining a hollow interior between the first and second ends that is configured to permit airflow between the first and second ends.

5 more elements

A pump assembly configured to connect to a manifold of an applicator for dispensing hotmelt adhesive, the pump assembly comprising:

an inlet for receiving a hotmelt adhesive and an outlet in fluid communication with the manifold;
a pump;
a drive motor unit operable for pumping the hotmelt adhesive from the inlet to the outlet, the drive motor unit including an output drive shaft and a drive motor configured to rotate the output drive shaft;
and
a coupling operatively connecting the pump and the output drive shaft, the coupling including at least one insulating element therein.

2 more elements

Dependencies are inferred from the claim text.

Applicator with at least one pump having thermal barrier and active cooling

Life of this patent

Applicator with at least one pump having thermal barrier and active cooling

Life of this patent

Abstract

Claims20