The field of the invention relates generally to blower assemblies used in HVAC (Heat, Ventilation, and Air Conditioning).
A blower assembly typically includes a blower, a motor to propel the blower, and a housing for supporting the motor and for direction the flow of air from the blower. The blower typically rotates and, as such is connected to the rotating portion or rotor of the motor. The rotor may be connected to the blower at any suitable interface and the rotor may, for example, include a body that is mounted to the blower or may include a shaft to which the blower is mounted.
Further, a plurality of different motors may be utilized with a plurality of different blowers to provide the blower assembly. It may be desirable to provide a plurality of different motors to a common blower, or conversely, it may be desirable to provide a plurality of different blowers to a common motor.
The use of different motor mounting configurations and the use of different blowers and the use of different motors in blower assemblies in HVAC adds to the complexity and associated costs of such assemblies.
Attempts to connect and seal a blower outlet to a HVAC related appliances may not be effective and may be expensive. Reducing the complexity of motor and blowers and the reduction in the proliferation of parts is desirable in the design and manufacture of blower assemblies.
The present invention is directed to alleviate at least some of these problems with the prior art.
According to an embodiment of the invention, a blower assembly kit for fabricating a plurality of blower assemblies is provided. A first of the plurality of blower assemblies is configured for use with a first motor having a rotor. A second of the plurality of blower assemblies is configured for use with a second motor having a shaft.
The kit includes a body having a member for generating airflow and a first adapter having a first connection for connecting the first adapter to the body and having a second connection for connecting the first adapter to the rotor of the first motor. The kit also includes a second adapter having a first connection for connecting the second adapter to the body and having a second connection for connecting the second adapter to the shaft of the second motor. The body and the first adapter include the first of the plurality of blower assemblies and the body and said second adapter include the second of the plurality of blower assemblies.
According to an aspect of the invention, the blower assembly kit may be configured such that the second adapter includes a first member having the first connection and a second member, connected to the first member and including the second connection.
According to another aspect of the invention, the blower assembly kit may be configured such that the first member of the first adapter is integral with the second adapter.
According to yet another aspect of the invention, the blower assembly kit may be configured such that the first adapter and the second adapter are integral with each other.
According to another aspect of the invention the blower assembly kit may be configured such that the first motor is an axial flux motor.
According to another aspect of the invention the blower assembly kit may be configured such that the second motor is a radial flux motor.
According to another aspect of the invention the blower assembly kit may be configured such that the second connection of the second adapter includes a hub defining a central opening for receiving the shaft.
According to another aspect of the invention, the blower assembly kit may further include a fastener. The second connection of the first adapter includes an opening for receiving the fastener.
According to another aspect of the invention, the blower assembly kit may further include a plurality of fasteners and may be configured such that the second connection of the first adapter includes a plurality of spaced apart openings. Each of the openings may be adapted for receiving at least one of the fasteners. The rotor may include a plurality of spaced apart openings. Each of the openings may be adapted for receiving at least one of the fasteners.
According to an aspect of the invention the blower assembly kit may be configured such that the body includes a blower wheel and wherein the member includes a blower blade.
According to an aspect of the invention the blower assembly kit may be configured such that the body comprises a fan body and such that the member includes a fan blade.
According to another embodiment of the invention a device kit for fabricating a plurality of blower devices is provided. The kit includes a first motor having a rotor, a second motor having a shaft, a body including a member for generating airflow, a first adapter and a second adapter. The first adapter has a first connection for connecting the first adapter to the body and has a second connection for connecting the first adapter to the rotor of the first motor. The second adapter has a first connection for connecting the second adapter to the body and has a second connection for connecting the second adapter to the shaft of the second motor. The body, the first adapter and the first motor include a first of the plurality of blower assemblies and the body, the second adapter and the second motor include the second of the plurality of blower assemblies.
According to an aspect of the invention the device kit may be configured such that the second adapter includes a first member having the first connection and a second member, connected to the first member and including the second connection.
According to an aspect of the invention the device kit may be configured such that the first adapter and the second adapter are integral with each other.
According to an aspect of the invention the device kit may be configured such that the first member of the first adapter is integral with the second adapter
According to an aspect of the invention the device kit may be configured such that the first motor is an axial flux motor.
According to an aspect of the invention the device kit may be configured such that the second motor is a radial flux motor.
According to an aspect of the invention the device kit may be configured such that the second connection of the second adapter includes a hub defining a central opening for receiving the shaft.
According to an aspect of the invention the device kit may be configured such that the rotor includes a plurality of spaced apart openings. Each opening is adapted for receiving at least one of the fasteners.
According to another embodiment of the present invention a method for providing a plurality of blower devices is provided. The method includes the steps of providing a first motor having a rotor, providing a second motor having a shaft, providing a body including a member for generating air flow, providing a first adapter having a first connection for connecting the first adapter to the body and having a second connection for connecting the first adapter to the rotor of the first motor, providing a second adapter having a first connection for connecting the second adapter to the body and having a second connection for connecting the second adapter to the shaft of the second motor, assembling the first adapter to the first motor to provide a first of the plurality of blower assemblies, and assembling the second adapter to the second motor to provide a second of the plurality of blower assemblies.
According to another embodiment of the present invention a method for providing a plurality of blower devices is provided. The method includes the steps of providing a first motor having a rotor, providing a second motor having a shaft, providing a body including a member for generating air flow, providing a first adapter having a first connection for connecting the first adapter to the body and having a second connection for connecting the first adapter to the rotor of the first motor, providing a second adapter having a first connection for connecting the second adapter to the body and having a second connection for connecting the second adapter to the shaft of the second motor, assembling the first adapter to the first motor to provide a first of the plurality of blower assemblies, and assembling the second adapter to the second motor to provide a second of the plurality of blower assemblies.
The method, systems and apparatus described herein provide for a HVAC blower assembly kit and a device kit with reduced cost.
A HVAC blower assembly typically includes a blower, a motor to propel the blower, and a housing for supporting the motor and for direction the flow of air from the blower. The blower typically rotates and, as such is connected to the rotating portion or rotor of the motor. The rotor may be connected to the blower at any suitable interface and the rotor may, for example, include a body that is mounted to the blower or may include a shaft to which the blower is mounted.
Further, a plurality of different motors may be utilized with a plurality of different blowers to provide the HVAC blower assembly. It may be desirable to provide a plurality of different motors to a common blower, or conversely, it may be desirable to provide a plurality of different blowers to a common motor.
The use of different motor mounting configurations and the use of different blowers and the use of different motors in HVAC blower assemblies adds to the complexity and associated costs of such assemblies used in HVAC industry.
Attempts to connect and seal a HVAC blower outlet to HVAC related appliances may not be effective and may be expensive. Reducing the complexity of motor and blowers and the reduction in the proliferation of parts or components is desirable in the design and manufacture of blower assemblies. The method, systems and apparatus described herein facilitate combining a minimum of different parts or components to provide for the variety of blower assembly options that the market place demands. The designs and methods provided herein facilitate reduction in complexity, manufacturing costs and inventory cost related to providing a wide variety of blower assemblies.
Technical effects of the methods, systems, and apparatus described herein include at least one of reduced cost, a larger variety of product options, improved performance and quality and reduced labor costs.
Referring to
The kit 10 includes a body 26 having a member 28 for generating air flow and a first adapter 30 having a first connection or body connection 32 for connecting the first adapter 30 to the body 26 and having a second connection or rotor connection 34 for connecting the first adapter 30 to the rotor 18 of the first motor 16.
The kit 10 also includes a second adapter 36 having a first connection or body connection 40 for connecting the second adapter 36 to the body and having a second connection or shaft connection 42 for connecting the second adapter 36 to the shaft 24 of the second motor 22. The body 26 and the first adapter 30 include the first 14 of the plurality of blower assemblies 12 and the body 26 and said second adapter 36 include the second 20 of the plurality of blower assemblies 12.
The body 26, the first adapter 30 and the member 28 form the first blower assembly 14. The body 26, the second adapter 36 and the member 28 form the second blower assembly 20. The first adapter 30 and the second adapter 36 may be in the form of a center plate that serves to support the body 26. The center plate 30, 36 and the body 26 may be in the form of a fan or blower, for example a cylindrically shaped blower with a uniformly spaced set of members for moving fluid in the form of blades or fins. The fluid may be a liquid or a gas and is typically air. The cylindrically shaped blower is also known as a squirrel cage fan or blower. This type of blower is typically used in heating, cooling or air moving applications in buildings, both commercial and residential. This type of blower is well suited for use in heating and cooling building applications where ductwork is installed in the building and forced air cooling and heating is used.
It should be appreciated that the blower assembly kit 10 is well suited for applications where the second motor 22 is different from the first motor 16 and where there is a desire to rotate the rotate the body 26 to generate airflow with a selected one of the first motor 16 and the second motor 22. Further, the blower assembly kit 10 is well suited for applications where the first motor 16 is so different from the second motor 22 that a common location in the motors 16 and 22 cannot be reasonably obtained to secure the motor to the body.
It should be appreciated that the first motor 16 and/or the second motor 22 may be an axial flux motor or a radial flux motor. The motors 16 and/or 22 may be induction motors, permanent magnet motors, PSC motors, or switched reluctance motors.
One such situation in which the first motor 16 is so different from the second motor 22 that a common mounting configuration is not practical is when the first motor 16, as shown, is a axial flux motor and when the second motor 22, as shown, is a radial flux motor.
The second connection or rotor connection 34 for connecting the first adapter 30 to the rotor 18 of the first motor 16 may have any suitable configuration. Typically and as shown in
Typically and as shown in
While the first adapter 30 and the second adapter 36 may be separate components, as shown in
The common adapter 46 may, as shown in
Note that the radial flux motor connector 52 may be similar or identical to the second or shaft connection 42 of second adapter 36 for connecting the second adapter 36 to the shaft 24 of the second motor 22. Note that the axial flux motor connector 50 may be similar or identical to the second or rotor connection 34 of first adapter 30 for connecting the first adapter 30 to the rotor 18 of the first motor 16
Note that the body connector 48 may be similar or identical to the first or body connection 40 of second adapter 36 for connecting the second adapter 36 to the body 26 and similar or identical to the first or body connection 32 of first adapter 30 for connecting the first adapter 30 to the body 26.
For example and as shown in
As shown in
As shown in
The blower 28 may be any device that generates airflow and may, for example and as is shown in
Squirrel cage blowers may have many configuration or orientation of blades or fins and may be forward or backwardly inclining and may be curved or straight. The kit 10 of the present invention is applicable for a wide variety of blower and fan configurations.
According to another embodiment of the invention and referring to
Referring to
Referring now to
The common adapter 46 as shown has a two-piece construction with a flange 54 and a central hub 56 fitted to opening 62 in the flange 54. Such a two-piece construction permits the two different components to be made with different and more efficient manufacturing methods. For example, the flange may be made from a stamping and the hub 56 may be cast.
It should be appreciated that the flange may be cast or machined from a solid or made in any other commercially feasible manner. For example and as shown in
It should also be appreciated that the hub may be stamped or machined from a solid or made in any other commercially feasible manner. The hub and the flange may be made of any suitable durable materials and maybe made of a polymer, a metal, a composite material or any combination thereof.
It should be appreciated that if the common adapter is made with a flange and a central hub, the common adapter may be used with the axial flux motor 16 without the hub. The flange itself may serve to be an adapter for use with the axial flux motor 16. The hub may be added to the flange if the common adapter is used to connect the blower 26 to the radial flux motor 22.
Referring again to
As shown in
The flange 54 may also include an inner inclined stiffening portion 67 that as shown extends radially inwardly and axially outwardly from the mounting face 64. The inner inclined stiffening portion 67 may include recessed portions 70 that extend to the central disk shaped portion 66. The recessed portions 70 may be centered around the holes 60 in the adapter and are used to permit the fasteners 58 to engage threads 72 formed in the holes 60 (see
The flange 54 may also include an inner disk shaped portion 69 that as shown extends radially inwardly from the inner inclined stiffening portion 67. The inner disk shaped portion 69 defines the central opening 62. The central opening 62 is sized to receive cylindrical outer periphery 74 of the hub 56. The hub may be threadably secured to the adapter 46 or may be interferencely fitted to the adapter 46. The hub 56 may be secured to the adapter 46 crimping, by welding, or any other commercially available method.
The adapter 46, as shown, further include outer disk shaped portion 65 extending from outer inclined stiffening portion 68 of the flange 54. The body connecter 48 may have any suitable shape and may, as shown, be in the form of v-shaped periphery 57 that extends outwardly from the outer disk shaped portion 65 and is used to connect the adapter 46 to the body or blower 26.
The hub 56 may any suitable shape capable of securing the shaft 24 of the radial flux motor 22 to the adapter 46.
For example and as shown in
Referring now to
As shown in
While the first blower assembly 14 may be configured in any manner such that the body 26, the center plate 46 and the blades 28 form the first blower assembly 14, as shown, the blades 28 are connected to the flange 54 at the v-shaped periphery 57 of flange 54. While the center plate 46 may be positioned along the length of the blades 28 anywhere that provides for a sturdy construction, the center plate 46, as shown in
As shown in
The blades 28 may have any shape conducive to generating airflow. As shown, the blades 28 are positively included, but may be neutral or negatively inclined with respect to the direction of rotation of the wheel 93.
Referring now to
As shown in
As shown in
Referring now to
As shown in
Referring now to
Referring again to
It should be appreciated that the center plate 46A may be cast or machined from a solid or made in any other commercially feasible manner. For example and as shown in
It should also be appreciated that the center plate 46A may be stamped or machined from a solid or made in any other commercially feasible manner. The center plate 46A may be made of any suitable durable materials and maybe made of a polymer, a metal, a composite material or any combination thereof.
Referring again to
According to another embodiment of the present invention and referring now to
When introducing elements/components/etc. of the methods and apparatus described and/or illustrated herein, the articles “a”, “an”, “the”, and “the” are intended to mean that there are one or more of the element(s)/component(s)/etc. The terms “comprising”, “including”, and “having” are intended to be inclusive and mean that there may be additional element(s)/component(s)/etc. other than the listed element(s)/component(s)/etc.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
Described herein are exemplary methods, systems and apparatus utilizing lower cost materials in a permanent magnet machine that reduces or eliminates the efficiency loss caused by the lower cost material. Furthermore, the exemplary methods system and apparatus achieve increased efficiency while reducing or eliminating an increase of the length of the machine. The methods, system and apparatus described herein may be used in any suitable application. However, they are particularly suited for HVAC applications.
Exemplary embodiments of the fluid flow device and system are described above in detail. The electric machine and its components are not limited to the specific embodiments described herein, but rather, components of the systems may be utilized independently and separately from other components described herein. For example, the components may also be used in combination with other machine systems, methods, and apparatuses, and are not limited to practice with only the systems and apparatus as described herein. Rather, the exemplary embodiments can be implemented and utilized in connection with many other applications.
Although specific features of various embodiments of the disclosure may be shown in some drawings and not in others, this is for convenience only. In accordance with the principles of the disclosure, any feature of a drawing may be referenced and/or claimed in combination with any feature of any other drawing.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.