GB2564119A - A chassis for mounting an electric motor and ventilation apparatus incorporating the same - Google Patents

A chassis for mounting an electric motor and ventilation apparatus incorporating the same Download PDF

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Publication number
GB2564119A
GB2564119A GB1710676.6A GB201710676A GB2564119A GB 2564119 A GB2564119 A GB 2564119A GB 201710676 A GB201710676 A GB 201710676A GB 2564119 A GB2564119 A GB 2564119A
Authority
GB
United Kingdom
Prior art keywords
electric motor
chassis
mounting
locking
ventilation apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1710676.6A
Other versions
GB2564119B (en
GB201710676D0 (en
Inventor
Figg Simon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vent Axia Group Ltd
Original Assignee
Vent Axia Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vent Axia Group Ltd filed Critical Vent Axia Group Ltd
Priority to GB1710676.6A priority Critical patent/GB2564119B/en
Publication of GB201710676D0 publication Critical patent/GB201710676D0/en
Publication of GB2564119A publication Critical patent/GB2564119A/en
Application granted granted Critical
Publication of GB2564119B publication Critical patent/GB2564119B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/26—Means for adjusting casings relative to their supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A chassis 11 for mounting an electric motor 7 comprises a mounting seat 15 which engages a first surface 33 of the electric motor when mounted in the chassis. A locking seat 21 which is disposed in opposed and spaced relation to the mounting seat and engages a second surface 35 of the electric motor when mounted in the chassis. The second surface is oppositely-directed to the first surface of the electric motor, such that the electric motor is held captive between the mounting seat and the locking seat. The mounting and locking seats are configured to allow the electric motor to be inserted axially into the chassis when the electric motor is in a first angular position in relation to the chassis and to be rotated to a second angular position in which the first and second surfaces of the electric motor are located between the mounting and locking seats. Preferably the electric motor is a shaded-pole motor. The electric motor may be secured by a single fastener. The chassis preferable comprises a rotational stop and the motor may be locked by a latch mechanism (43, figure 6). A ventilation apparatus is also claimed.

Description

The present invention relates to a chassis for mounting an electric motor and ventilation apparatus Incorporating the same.
Conventionally, especially in ventilation fans, electric motors are mounted using a plurality of separate fasteners, such as screws or bolts.
The present inventors have recognized that it is possible to provide a chassis which requires a reduced number of fasteners, and in preferred embodiments a single fastener or no separate fasteners, thereby facilitating manufacture and repair.
In one aspect the present invention provides a chassis for mounting an electric motor, the chassis comprising: a mounting seat which engages a first surface of the electric motor when mounted in the chassis; a locking seat which is disposed in opposed and spaced relation to the mounting seat and engages a second surface of the electric motor when mounted in the chassis, the second surface being oppositely-directed to the first surface of the electric motor, such that the electric motor is held captive between the mounting seat and the locking seat; wherein the mounting and locking seats are configured to allow the electric motor to be inserted axially into the chassis when the electric motor is in a first angular position in relation to the chassis and to be rotated to a second angular position in which the first and second surfaces of the electric motor are located between the mounting and locking seats.
In one embodiment the mounting seat is provided by at least one seating element at a periphery of the chassis.
In one embodiment the at least one seating element of the mounting seat is inwardly projecting.
In one embodiment the mounting seat is provided by a plurality of seating elements which are arranged in spaced relation about the periphery of the chassis.
In one embodiment the locking seat is provided by at least one seating element at a periphery of the chassis.
In one embodiment the at least one seating element of the locking seat is inwardly projecting.
In one embodiment the locking seat is provided by a plurality of seating elements which are arranged in spaced relation about the periphery of the chassis.
In one embodiment the seating elements of the locking seat are arranged in symmetrical relation about the periphery of the chassis.
In one embodiment the locking seat comprises four seating elements.
In one embodiment the electric motor comprises a body which includes first and second oppositely-directed surfaces which are configured to engage respectively the mountincj and locking seats of the chassis.
In one embodiment the electric motor is a shaded-pole motor and the body of the electric motor is provided by shaded-pole laminations of the electric motor.
In another embodiment the body of the electric motor is provided by an enclosure or structural component of the electric motor.
In one embodiment the body of the electric motor includes at least one engagement element which is configured to be engaged between the mounting and locking seats of the chassis.
- 3 In one embodiment the body of the electric motor includes a plurality of engagement elements which are arranged in spaced relation about the periphery of the electric motor.
In one embodiment the engagement elements of the body of the electric motor have the same arrangement as the seating elements of the locking seat, whereby the electric motor can be axially inserted into the chassis, with the engagement elements passing between the seating elements of the locking seat, and moved to the locked position by angular rotation of the electric motor in relation to the chassis, whereby the engagement elements are located between the opposed surfaces of the mounting and locking seats and the electric motor is held captive in the chassis.
In one embodiment the electric motor is moved to the locked position by an angular rotation of about 45 degrees.
In one embodiment the electric motor is fixed to the housing using a single fastener, optionally a bolt or screw.
In another embodiment the electric motor is held by an interference fit between the mounting and locking seats and the body of the electric motor.
In one embodiment the chassis further comprises a rotational stop which provides that the electric motor cannot be rotated beyond the locked position.
In one embodiment the chassis further comprises a latch element which provides that the electric motor cannot be rotated back from the locked position.
In one embodiment the latch element comprises a detent 4 In one embodiment the latch element is a flexible detent which is biased from a latched position during rotation of the electric motor to the locked position, and returns to the latched position when the electric motor is rotated to the locked position.
In one embodiment the chassis further comprises a locking key which is located in a space created between the chassis and the electric motor when the electric motor is in the locked position and acts to prevent rotation of the electric motor.
The present invention also extends to the chassis in combination with the electric motor.
The present invention further extends to ventilation apparatus Incorporating the chassis.
In one embodiment the ventilation apparatus comprises a fan.
In one embodiment the ventilation apparatus comprises a housing which incorporates the chassis and is in use fitted to an opening in a building structure, and the housing includes a flow channel through which a flow of air is directed.
In one embodiment the electric motor is disposed in the flow channel.
Preferred embodiments of the present invention will now be described in more detail hereinbelow by way of example only with reference to the accompanying drawings, in which:
Figure 1 illustrates an exploded perspective view of ventilation apparatus in accordance with a first embodiment of the present invention;
Figure 2 illustrates a rear plan -view of the ventilation apparatus of Figure 1, with the electric motor removed from the chassis;
Figure 3 illustrates a rear plan view of the ventilation apparatus of Figure 1, with the electric motor mounted in the chassis;
Figure 4 illustrates a vertical sectional view (along section I-I in Figure 2) of the ventilation apparatus of Figure 1, with the electric motor removed from the chassis;
Figure 5 illustrates a vertical sectional view (along section II-II in Figure 2) of the ventilation apparatus of Figure 1, with the electric motor removed from the chassis;
Figure 6 illustrates a vertical sectional view (along section III-III in Figure 3) of the ventilation apparatus of Figure 1, with the electric motor removed from the chassis;
Figure 7 illustrates a vertical sectional view (along section IV-IV in Figure 3) of the ventilation apparatus of Figure 1, with the electric motor removed from the chassis;
Figures 8 to 10 illustrate rear plan views of the ventilation apparatus of Figure
1, illustrating the operative steps in mounting the electric motor in the locked position in the chassis; and
Figure 11 illustrates a rear plan view of a ventilation apparatus as a modification of the ventilation apparatus of Figure 1, with the electric motor in the locked position.
The ventilation apparatus, in this embodiment a fan, comprises a housing 3 which Is fitted to an opening in a building structure, such as in a wall, and includes a flow channel 5, in this embodiment an elongate channel, through which a flow of air is directed, an electric motor 7 which is mounted in the housing 3, and an impeller (not illustrated) which drives an air flow through the flow channel 5.
The housing 3 includes a chassis 11 in which the electric motor 7 is mounted, in this embodiment axially within the flow channel 5,
The chassis 11 comprises a mounting seat 15 which engages a first surface 33 of the electric motor 7 when mounted in the housing 3.
In this embodiment the mounting seat 15 is provided by a plurality of seating elements 17,. here inwardly projecting,, which are arranged in spaced relation about a periphery of the flow channel 5.
In an alternative embodiment the mounting seat 15 could be provided by an annular surface or a substantially-continuous surface.
The chassis 11 further comprises a locking seat 21 which is disposed in opposed relation to the mounting seat 15 and engages a second surface 35 of the electric motor 7, oppositely-directed to the first surface 33 of the electric motor 7, when mounted in the housing 3f such that the electric motor 7 is held captive between the mounting seat 15 and the locking seat 21.
In this embodiment the locking seat 21 is provided by a plurality of seating elements 23, here inwardly projecting, which are arranged in spaced relation about a periphery of the flow channel 5.
In this embodiment the locking seat 21 comprises four seating elements 23, but in other embodiments could comprise two,, three, five, six. seven or eight seating elements 23.
In this embodiment the seating elements 23 are arranged in symmetrical relation, here at positions 90 degrees apart.
- 7 ~
The electric motor 7 comprises a body 31 which includes first and second oppositely-directed surfaces 33, 35, which are configured to engage respectively the mounting and locking seats 15, 21 of the chassis 11.
In this embodiment the body 31 is provided by shaded-pole laminations of the electric motor 7, here a shaded-pole motor.
In an alternative embodiment the body 31 could be provided by an enclosure or any structural component of the electric motor 7.
The body 31 includes at least one engagement element 37 which is configured to be engaged between the mounting and locking seats 15, 21 of the chassis 11.
In this embodiment the body 31 includes a plurality of engagement elements 37 which are arranged in spaced relation about the periphery of the electric motor 7.
In this embodiment the engagement elements 37 are configured to have the same arrangement as the seating elements 23 of the locking seat 21, whereby the electric motor 7 can be axially inserted into the chassis 11 of the housing 3, with the engagement elements 37 passing between the seating elements 23 of the locking seat 21 (as illustrated in Figure 8), and moved to the locked position by angular rotation of the electric motor 7 in relation to the housing 3 (as illustrated in Figure 10), whereby the engagement elements 37 are located between the opposed surfaces of the mounting and locking seats 15, 21 and the electric motor 7 is held captive in the chassis 11.
In this embodiment angular rotation of the electric motor 7 in relation to the housing 3 causes the engagement elements 37 of the body 31 of the electric motor 31 to pass between the mounting and locking seats 15, 21, such that the engagement elements 37 engage the opposed surfaces of respective ones of the seating elements 17 of the mounting seat 15 and the seating elements 23 of the locking seat 21 (as illustrated in Figure 9), and with further angular rotation the engagement elements 37 of the body 31 are moved to a locked position between the mounting and locking seats 15, 21 (as illustrated in Figure 10).
In this embodiment the electric motor 7 is moved to the locked position by an angular rotation of 45 degrees, but in other embodiments, with a different configuration of the seating elements 23 of the locking seat 21 and the engagement elements 37 of the body 31, the angular rotation for locking can differ.
In this embodiment the housing 3 includes a rotational stop 41, here in the form of a detent, which ensures that the electric motor 7 cannot be rotated beyond the locked position in which the engagement elements 37 of the body 31 are located between the mounting and locking seats 15, 21.
In this embodiment the housing 3 further includes a latch element 43, here in the form of a detent, which engages a locking surface 45 on the body 31 of the electric motor 7 and prevents the electric motor 7 from being rotated back from the locked position in which the engagement elements 37 of the body 31 are located between the mounting and locking seats 15, 21. In this embodiment the latch element 43 is a flexible detent which is biased out of the way during rotation of the electric motor 7 to the locked position, and returns to the locking position when the electric motor 7 is rotated to the locked position.
In one embodiment the electric motor 7 is fixed by an interference fit between the mounting and locking seats 15, 21 and the body 31 of the electric motor
7.
In an alternative embodiment the electric motor 7 could be fixed to the housing 3 using a single fastener, such as a bolt or screw.
Finally, it will be understood that the present invention has been described in its preferred embodiments and can be modified in many different ways without departing from the scope of the invention as defined by the appended claims.
In this embodiment the locking seat 21 comprises four seating elements 23, but in other embodiments could comprise two, three, five, six, seven or eight seating elements 23.
In an alternative embodiment the locking seat 21 could comprise a single seating element 23.
In another embodiment, alternatively or additionally to the latch element. 43, the housing 3 could include a locking key 47, as illustrated in Figure 11, which is located between a periphery of the flow channel 5 and the electric motor 7 and acts to prevent rotation of the electric motor 7.

Claims (1)

  1. 7< The chassis of claim 5 or 6. wherein the locking seat is provided by a plurality of seating elements which are arranged in spaced relation about the periphery of the chassis.
    8. The chassis of claim 7, wherein the seating elements of the locking seat are arranged in symmetrical relation about the periphery of the chassis.
    9. The chassis of claim 8, wherein the locking seat comprises four seating elements.
    10. The chassis of any of claims 1 to 9, wherein the electric motor comprises a body which includes first and second oppositely-directed surfaces which are configured to engage respectively the mounting and locking seats of the chassis.
    11. The chassis of claim 10, wherein the electric motor is a shaded-pole motor and the body of the electric motor is provided by shaded-pole laminations of the electric motor.
    12. The chassis of claim 10, wherein the body of the electric motor is provided by an enclosure or structural component of the electric motor.
    13. The chassis of any of claims 10 to 12, wherein the body of the electric motor includes at least one engagement element which is configured to be engaged between the mounting and locking seats of the chassis.
    14. The chassis of claim 13, wherein the body of the electric motor includes a plurality of engagement elements which are arranged in spaced relation about the periphery of the electric motor.
    15. The chassis of claim 14, wherein the engagement elements of the body of the electric motor have the same arrangement as the seating elements of the locking seat, whereby the electric motor can be axially inserted into the chassis, with the engagement elements passing between the seating elements of the locking seat, and moved to the locked position by angular rotation of the electric motor in relation to the chassis, whereby the engagement elements are located between the opposed surfaces of the mounting and locking seats and the electric motor is held captive in the chassis.
    16. The chassis of claim 15, wherein the electric motor is moved to the locked position by an angular rotation of about 45 degrees.
    17. The chassis of any of claims 10 to 16, wherein the electric motor Is fixed to the housing using a single fastener, optionally a bolt or screw.
    18. The chassis of any of claims 10 to 16, wherein the electric motor is held by an interference fit between the mounting and locking seats and the body of the electric motor.
    19. The chassis of any of claims 1 to 18, further comprising a rotational stop which provides that the electric motor cannot be rotated beyond the locked position.
    20. The chassis of any of claims 1 to 19, further comprising a latch element which provides that the electric motor cannot be rotated back from the locked position.
    21. The chassis of claim 20, wherein the latch element comprises a detent.
    22. The chassis of claim 21, wherein the latch element is a flexible detent which is biased from a latched position during rotation of the electric motor to the locked position, and returns to the latched position when the electric motor is rotated to the locked position.
    23< The chassis of claim 22, further comprising a locking key which is located in a space created between the chassis and the electric motor when the electric motor is in the locked position and acts to prevent rotation of the electric motor.
    24. The chassis of any of claims 10 to 23 in combination with the electric motor.
    25. Ventilation apparatus incorporating the chassis of any of claims 1 to 24.
    26. The ventilation apparatus of claim 25, wherein the ventilation apparatus comprises a fan.
    27. The ventilation apparatus of claim 25 or 26, wherein the ventilation apparatus comprises a housing which incorporates the chassis and is in use fitted to an opening in a building structure, and the housing includes a flow channel through which a flow of air is directed.
    28. The ventilation apparatus of claim 27, wherein the electric motor is disposed in the flow channel.
GB1710676.6A 2017-07-03 2017-07-03 A chassis for mounting an electric motor and ventilation apparatus incorporating the same Active GB2564119B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1710676.6A GB2564119B (en) 2017-07-03 2017-07-03 A chassis for mounting an electric motor and ventilation apparatus incorporating the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1710676.6A GB2564119B (en) 2017-07-03 2017-07-03 A chassis for mounting an electric motor and ventilation apparatus incorporating the same

Publications (3)

Publication Number Publication Date
GB201710676D0 GB201710676D0 (en) 2017-08-16
GB2564119A true GB2564119A (en) 2019-01-09
GB2564119B GB2564119B (en) 2021-12-22

Family

ID=59592664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1710676.6A Active GB2564119B (en) 2017-07-03 2017-07-03 A chassis for mounting an electric motor and ventilation apparatus incorporating the same

Country Status (1)

Country Link
GB (1) GB2564119B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0242342A1 (en) * 1986-04-17 1987-10-21 PAX Electro Products AB Fan
US20060292010A1 (en) * 2005-06-27 2006-12-28 Holston Ashby E Fan mounting system
KR20100114696A (en) * 2009-04-16 2010-10-26 엘지이노텍 주식회사 Spindle motor
US20140241912A1 (en) * 2011-09-30 2014-08-28 Robert Bosch Gmbh Cooling circuit pump for a motor vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0242342A1 (en) * 1986-04-17 1987-10-21 PAX Electro Products AB Fan
US20060292010A1 (en) * 2005-06-27 2006-12-28 Holston Ashby E Fan mounting system
KR20100114696A (en) * 2009-04-16 2010-10-26 엘지이노텍 주식회사 Spindle motor
US20140241912A1 (en) * 2011-09-30 2014-08-28 Robert Bosch Gmbh Cooling circuit pump for a motor vehicle

Also Published As

Publication number Publication date
GB2564119B (en) 2021-12-22
GB201710676D0 (en) 2017-08-16

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