Thermostat system with software-repurposable wiring terminals adaptable for HVAC systems of different ranges of complexity
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F23N-005/20
G05D-023/00
G05D-023/275
F25D-021/02
G05D-023/19
F24F-011/00
출원번호
US-0205159
(2014-03-11)
등록번호
US-9746859
(2017-08-29)
발명자
/ 주소
Conner, Brian J.
Palmer, Joseph E.
Sloo, David
출원인 / 주소
Google Inc.
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
119
초록▼
An auxiliary hardware box is described that can be installed at or near the HVAC system. The auxiliary box includes a large number of wiring terminals, for example 16 or more, for connecting to a relatively large number of HVAC control wires. The auxiliary box can include a “train map” type graphic
An auxiliary hardware box is described that can be installed at or near the HVAC system. The auxiliary box includes a large number of wiring terminals, for example 16 or more, for connecting to a relatively large number of HVAC control wires. The auxiliary box can include a “train map” type graphic display that is visible to the installer and provides a graphical indication as to which relays or switches are currently open and which are currently closed. A small sleek visually pleasing thermostat is also described that can be connected either directly to an HVAC system or to the auxiliary box, and can automatically detect an purpose the connected wires according to which it is connected to.
대표청구항▼
1. A thermostat comprising: a plurality of wiring terminals adapted to make electrical connections with a first plurality of wires running between a first location where the thermostat is installed and a second location where a Heating, Ventilation, and Air Conditioning (HVAC) system is installed; a
1. A thermostat comprising: a plurality of wiring terminals adapted to make electrical connections with a first plurality of wires running between a first location where the thermostat is installed and a second location where a Heating, Ventilation, and Air Conditioning (HVAC) system is installed; anda processor coupled to the plurality of wiring terminals and programmed to: determine whether an intermediate HVAC control unit is installed and the first plurality of wires connects the plurality of wiring terminals to the intermediate HVAC control unit, or whether the intermediate HVAC control unit is not installed and the first plurality of wires connects the plurality of wiring terminals directly to the HVAC system;operate in a first mode to control the HVAC system directly when it is determined that the intermediate HVAC control unit is not installed; andoperate in a second mode to control the HVAC system indirectly when it is determined that the intermediate HVAC control unit is installed, such that the thermostat communicates with the intermediate HVAC control unit, and the intermediate HVAC control unit communicates with the HVAC system. 2. The thermostat according to claim 1 further comprising a wireless communication module configured to communicate wirelessly with the intermediate HVAC control unit. 3. The thermostat according to claim 1 further comprising a wireless communication module configured to communicate wirelessly with at least one other unit within an enclosure where the thermostat is installed. 4. The thermostat according to claim 1 wherein the processor is further programmed to communicate with the intermediate HVAC control unit bi-directionally using a serial communication protocol. 5. The thermostat according to claim 1 wherein determining whether the intermediate HVAC control unit is installed is based at least in part on an assessment of which of the plurality of wiring terminals have wires connected thereto. 6. A method comprising: detecting, at a plurality of wiring terminals of a thermostat, a first plurality of wires, wherein the first plurality of wires runs between a first location where the thermostat is installed and a second location where a Heating, Ventilation, and Air Conditioning (HVAC) system is installed;determining, at the thermostat, whether an intermediate HVAC control unit is installed and the first plurality of wires connects the plurality of wiring terminals to the intermediate HVAC control unit, or whether the intermediate HVAC control unit is not installed and the first plurality of wires connects the plurality of wiring terminals directly to the HVAC system;operating the thermostat in a first mode to control the HVAC system directly when it is determined that the intermediate HVAC control unit is not installed; andoperating the thermostat in a second mode to control the HVAC system indirectly when it is determined that the intermediate HVAC control unit is installed, such that the thermostat communicates with the intermediate HVAC control unit and the intermediate HVAC control unit communicates with the HVAC system. 7. The method according to claim 6 further comprising communicating wirelessly with the intermediate HVAC control unit. 8. The method according to claim 6 wherein when the intermediate HVAC control unit is installed, the first plurality of wires connecting the plurality of wiring terminals to the intermediate HVAC control unit is fewer in number than a second plurality of wires connecting the intermediate HVAC control unit to the HVAC system. 9. The method according to claim 6 wherein the first plurality of wires comprises at most three wires. 10. The method according to claim 6 wherein the thermostat, when mounted on a wall, occupies no more than 100 square centimeters, and the plurality of wiring terminals are configured for tool-free wire connection. 11. An intermediate Heating, Ventilation, and Air Conditioning (HVAC) control unit comprising: a first plurality of wiring terminals adapted to make electrical connections with a first plurality of wires running between a first location where a thermostat is installed and the intermediate HVAC control unit;a second plurality of wiring terminals adapted to make electrical connections with a second plurality of wires running between the intermediate HVAC control unit and an HVAC system, wherein the thermostat is installed at the first location, and the intermediate HVAC control unit and the HVAC system are installed at a second location;connection circuitry configured to selectively connect ones of the first plurality of wiring terminals to ones of the second plurality of wiring terminals;a processor programmed to receive communications from the thermostat, wherein the connection circuitry connects the ones of the first plurality of wiring terminals to the ones of the second plurality of wiring terminals according to the communications from the thermostat. 12. The intermediate HVAC control device according to claim 11, wherein the intermediate HVAC control unit is mounted directly on a housing of the HVAC system. 13. The intermediate HVAC control device according to claim 11, further comprising a graphic display comprising a plurality of visible indicators that indicate which ones of the first plurality of wiring terminals are connected to the ones of the second plurality of wiring terminals. 14. The intermediate HVAC control device according to claim 13, further comprising a housing, wherein the graphic display further comprises lines representing conductors silkscreened onto the housing. 15. The intermediate HVAC control device according to claim 11, further comprising one or more wiring terminals adapted to make electrical connection to one or more wires leading to one or more remote temperature sensors. 16. The intermediate HVAC control device according to claim 15, wherein the one or more remote temperature sensors measure one or more temperatures selected from a group consisting of: outdoor air temperature, indoor air temperature, and return air temperature. 17. The intermediate HVAC control device according to claim 11, further comprising a wireless communication module configured to wirelessly communicate with at least one other device located with an enclosure conditioned by the HVAC system. 18. The intermediate HVAC control device according to claim 11, wherein the first plurality of wiring terminals are further adapted to make an electrical connection to a second thermostat installed at a third location. 19. The intermediate HVAC control device according to claim 11, further comprising circuitry for generating a pulse-width-modulated control signal for controlling variable speed on an HVAC component. 20. The intermediate HVAC control device according to claim 11, further comprising circuitry for supplying electrical power to the thermostat through the first plurality of wiring terminals, the electrical power not being switched in order to control HVAC functions.
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