Heating circulating pump
First Claim
Patent Images
1. A heating circulation pump comprising:
- an electric motor with a motor winding and stator;
a pump housing;
a motor housing connected to the pump housing;
a pump impeller arranged in the pump housing and driven by the electric motor whose stator is arranged in the motor housing; and
a terminal box arranged on the motor housing, the terminal box being provided for the electric connection of the motor winding and for receiving electrical and/or electronic components of a motor control, the terminal box comprising at least two parts which are connected to one another with a material substance connection, and that the terminal box is designed in a sealingly closed manner to the motor and to the surroundings, said terminal box comprising a completely closed terminal box interior, a terminal box electrical contact and a terminal box snap connection interface, said completely closed terminal box interior being impermeable to fluid, said motor housing comprising a motor housing interior and a motor housing snap connection interface, each of said terminal box electrical contact, said terminal box snap connection interface and said motor housing snap connection interface being located at a position outside of said motor housing interior and said completely closed terminal box interior, said terminal box snap connection interface cooperating with said motor housing snap connection interface to mechanically connect said terminal box to said motor housing, said terminal box snap connection interface comprising connectors formed on an exterior wall of said terminal box.
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Accused Products
Abstract
A heating circulating pump includes a pump housing (1) containing a pump impeller driven by an electric motor. The stator thereof is arranged in a motor housing (8) connected to the pump housing (1). A terminal box (12) is arranged on the motor housing (8), for electrically connecting the motor winding and for receiving electrical and/or electronic components of the motor control system. The terminal box (12) includes at least two parts that are bonded to each other, and the terminal box (12) is designed such that it is sealed from the motor and from the surrounding environment.
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Citations
20 Claims
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1. A heating circulation pump comprising:
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an electric motor with a motor winding and stator; a pump housing; a motor housing connected to the pump housing; a pump impeller arranged in the pump housing and driven by the electric motor whose stator is arranged in the motor housing; and a terminal box arranged on the motor housing, the terminal box being provided for the electric connection of the motor winding and for receiving electrical and/or electronic components of a motor control, the terminal box comprising at least two parts which are connected to one another with a material substance connection, and that the terminal box is designed in a sealingly closed manner to the motor and to the surroundings, said terminal box comprising a completely closed terminal box interior, a terminal box electrical contact and a terminal box snap connection interface, said completely closed terminal box interior being impermeable to fluid, said motor housing comprising a motor housing interior and a motor housing snap connection interface, each of said terminal box electrical contact, said terminal box snap connection interface and said motor housing snap connection interface being located at a position outside of said motor housing interior and said completely closed terminal box interior, said terminal box snap connection interface cooperating with said motor housing snap connection interface to mechanically connect said terminal box to said motor housing, said terminal box snap connection interface comprising connectors formed on an exterior wall of said terminal box. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A heating circulation pump comprising:
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an electric motor with a motor winding and stator; a pump housing; a motor housing connected to the pump housing; a pump impeller arranged in the pump housing and driven by the electric motor; and a terminal box arranged on the motor housing, the terminal box being provided for the electric connection of the motor winding and for receiving electrical and/or electronic components of a motor control, the terminal box comprising a first part and a second part, the first part being welded to the second part to form a one-piece, integrally connected terminal box structure having a hermetically sealed terminal box interior that is hermetically sealed in a closed manner to the motor and to the surroundings, wherein said sealed terminal box interior is impermeable to liquid and gas, said terminal box comprising a terminal box electrical contact, an inner terminal box electrical and mechanical connector and a terminal box snap connection interface, said motor housing comprising a motor housing interior, an inner motor housing electrical and mechanical connector and a motor housing snap connection interface, said inner terminal box electrical and mechanical connector being connected to said inner motor housing electrical and mechanical connector, at least a portion of said inner terminal box electrical and mechanical connector being arranged in said hermetically sealed terminal box interior, said terminal box electrical contact, said terminal box snap connection interface and said motor housing snap connection interface being located radially outward of an outer peripheral surface of said terminal box, wherein said terminal box electrical contact, said terminal box snap connection interface and said motor housing snap connection interface are at a spaced location from said motor housing interior and said sealed terminal box interior, said terminal box snap connection interface cooperating with said motor housing snap connection interface to mechanically connect said terminal box to said motor housing, said terminal box snap connection interface comprising a plurality of connectors extending from an outer periphery of said terminal box. - View Dependent Claims (17, 18, 19, 20)
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Specification