GB2385716A - Electric fan with interchangeable control board - Google Patents

Electric fan with interchangeable control board Download PDF

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Publication number
GB2385716A
GB2385716A GB0307224A GB0307224A GB2385716A GB 2385716 A GB2385716 A GB 2385716A GB 0307224 A GB0307224 A GB 0307224A GB 0307224 A GB0307224 A GB 0307224A GB 2385716 A GB2385716 A GB 2385716A
Authority
GB
United Kingdom
Prior art keywords
control circuit
circuit board
motor
electric motor
fan
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
GB0307224A
Other versions
GB2385716B (en
GB0307224D0 (en
Inventor
Paul Langdon Jackson
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.)
Greenwood Air Management Ltd
Original Assignee
Greenwood Air Management 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 Greenwood Air Management Ltd filed Critical Greenwood Air Management Ltd
Publication of GB0307224D0 publication Critical patent/GB0307224D0/en
Publication of GB2385716A publication Critical patent/GB2385716A/en
Application granted granted Critical
Publication of GB2385716B publication Critical patent/GB2385716B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4881—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a louver type spring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention relates to an electric fan (1) having an electric motor (2) and a motor control circuit board (8). The fan (1) has a fan housing (9) made up of first and second members (10) and (12). The first member defines a sealable chamber in which the motor (2) and control circuit board (8) are housed. The second member (12) defines the front grille of the fan. The electric motor (2) has a drive shaft and at least one connector. The connector, which may comprise spade terminals (18, 20, fig.2), is provided both to electrically connect and to mechanically attach the control circuit board (8) to the motor (2). The control circuit board (8) is mountable on the motor (2), by means of the connector (18, 20, 26, 28, fig.2), after the drive shaft has been installed in the motor. A standardised motor design may therefore be employed, to which the required control circuit board may be attached after the motor has been assembled. Typical control circuits include pull cord switches, timers, humidity switches, temperature sensors, infrared sensors or combinations of these.

Description

<Desc/Clms Page number 1>
Electric Fans The present invention relates to electric fans, for example electric extractor fans.
Extractor fans, particularly in domestic environments, do not generally operate continuously.
Rather, it is normal for a controller to be provided to operate the fan only under certain circumstances or for limited periods of time. The controller may, for example, operate the fan on a timer basis, when a person enters a room, or when a light switch is operated.
The controller is usually a circuit board provided between the power source and the motor which switches the power to the motor on or off, as required. In prior art arrangements, the controller generally is either mounted separately from the motor (for example, in the fan housing) and connected thereto by flying leads, or it is mounted inside of the motor itself. However, there are disadvantages with these arrangements.
When the controller is located inside of the motor, the motor then operates in the mode determined by the controller installed. During manufacture, a controller with particular operational characteristics is selected and installed in the motor and the assembly of the motor is then completed, for example, by installing the drive shaft and its associated fittings. A stock of such assemblies, with differing operational characteristics according to the internal controller, then has to be maintained. Electric fans having motors with control circuits located inside of the motor are known from EP 0688088 and WO 00/04290.
The alternative arrangement, whereby the control circuit is located separately from the motor, facilitates use of a standardised motor. However, the use of flying leads between the motor and the control circuit necessitates an additional step in the
<Desc/Clms Page number 2>
production, or installation, of the fan; this may prove time consuming. Moreover, if the control circuit is to be mounted separately of the motor in the fan housing, the housing is necessarily more complicated. EP 0310391 and EP 1008762 disclose electric fans of this type.
Viewed from a first aspect, the present invention provides an electric fan comprising an electric motor and a motor control circuit board, the electric motor having a drive shaft and at least one connector, the at least one connector being provided to electrically connect the control circuit board to said motor and to mechanically mount said control circuit board, wherein said control circuit board is mountable on said at least one connector of said electric motor after said drive shaft has been installed in said electric motor.
As the connector electrically and mechanically connects the control circuit board to the motor, the assembly of the fan is simplified. A standardised motor design may be employed, to which the required control circuit board may be readily attached after the motor has been assembled.
To provide the desired mounting and electrical connection of the control circuit, the at least one connector may take various forms. It may for example be a male or a female connector (the control circuit board having an appropriate mating connector). The male and female connector parts may be e. g. in the form of a metal screw and a corresponding threaded hole, or a pin or other projection and a corresponding socket. The latter facilitates a simple and effective push-fit mounting of the control circuit board. Preferably, therefore, said at least one connector of the electric motor comprises a pin or a socket and the control circuit board is provided with a corresponding socket or pin, respectively, whereby the control circuit board is push-fit mounted to said electric motor.
A connector pin may have a circular or other cross-
<Desc/Clms Page number 3>
sectional shape. A spade terminal having a rectangular cross-section is preferably employed for engaging in a corresponding socket. This can achieve a sufficiently rigid mounting of the control circuit board.
If the motor is provided with a connector pin, and the control circuit board with the corresponding socket, then preferably the connector pin passes through the socket and projects from an end thereof remote from the electric motor. A visual inspection may then readily identify whether the control circuit board is correctly mounted with the pin in the socket and projecting therefrom. The board is preferably provided with an opening through which the pin is inserted during assembly of the board onto the motor. This facilitates the visual inspection. The mating socket may be provided on the surface of the control circuit board proximal to the motor, but, preferably, it is provided on the surface distal therefrom. This helps further with visual inspection during assembly.
Preferably, the socket is defined by spring arms which securely engage the pin. In preferred arrangements, during push mounting of the control circuit board onto the electric motor, the spring arms are deflected by the pin in a direction away from the electric motor. This provides a very secure connection, because pulling of the control circuit board away from the electric motor tends to tighten the grip of the spring arms on the pin.
The control circuit may be permanently mounted, or it may be removably mounted to facilitate changing and replacement thereof. The control circuit board may be replaced without dismantling the motor. If required, a fastener, such as a screw, may be provided to finally secure the control circuit in position.
In plan view, the control circuit board is, preferably, substantially the same shape and size as the motor. This helps ensure that the control circuit board
<Desc/Clms Page number 4>
does not catch or snag on other components, such as a fan housing, as it is installed and, thus, reduces the likelihood of it being damaged. It also enables the control circuit board easily to slide into a hub of the housing which also receives the motor.
The motor and the control circuit board are preferably mounted inside the same chamber in a fan housing. Thus, sealing of a single chamber may protect both the motor and the control circuit board against the ingress of moisture which may condense on the fan housing from the ambient air. Accordingly, the complexity and cost of the fan housing may be reduced.
The seal for the chamber may be created by providing a lip-seal between the fan housing members which join to define the chamber.
Although only one connector may be provided on the outside of the motor (in conjunction with a flying lead for power supply to the motor), preferably two such connectors are provided. If more than one connector is provided, they are preferably angularly equi-spaced about a generally central longitudinal axis to provide support for the control circuit board uniformly. An additional support member (or members), which does not provide an electrical connection, may provide further mechanical support for the control circuit board, if required. However, the primary mechanical interconnection between the control circuit board and the electric motor is by means of the at least one connector, whereby it (or they) mechanically mounts the control circuit board.
In a preferred embodiment, the electric motor is provided with a pair of connectors, provided respectively at diametrically opposed positions with respect to the generally central longitudinal axis of the electric motor. The additional support member may then take the form of a spacer to help locate the control circuit board during assembly generally
<Desc/Clms Page number 5>
perpendicularly to the longitudinal axis. The spacer is preferably positioned offset from the longitudinal axis and from a diametric line between the pair of connectors, so as to be able to stabilise the board against tilting about that line. The spacer may be in the form of a spacer peg located with its opposite ends in respective holes of the electric motor and the control circuit board.
The invention also extends to an electric motor for use in a fan as described herein, and to a control circuit board for use in such a fan.
Viewed from another aspect, therefore, the invention provides an electric motor for use in an electric fan as described herein, wherein said at least one connector is suitable for electrically connecting a said motor control circuit board to said electric motor and for mechanically mounting said control circuit board after the drive shaft has been installed in said electric motor.
Viewed from a further aspect, the invention provides a motor control circuit board for controlling an electric motor of an electric fan as described herein, wherein said control circuit board has at least one mating connector for electrically connecting said control circuit board to said at least one connector and for mechanically mounting said control circuit board.
Viewed from a further aspect, the present invention provides an electric fan comprising an electric motor and a motor control circuit board, the electric motor comprising a stator assembly and stator windings, wherein a protective casing is provided around at least a part of said stator windings and at least one connector is provided on said casing to electrically connect the control circuit board to said motor and to mechanically mount said circuit board.
The present invention further extends to a method of assembling an electric fan, the fan comprising an
<Desc/Clms Page number 6>
electric motor and a motor control circuit board, the electric motor having a drive shaft installed therein, at least one connector being provided on the outside of the electric motor, the method comprising the step of mounting the control circuit board on said at least one connector.
A preferred embodiment of the present invention will now be described by way of example only and with reference to the accompanying drawings, in which: Figure 1 shows a cross-sectional view of an electric fan in accordance with the present invention ; Figure 2 shows a side view of a motor, having a control circuit mounted thereon, for the electric fan shown in Figure 1 ; Figure 3 shows in plan view the control circuit and motor shown in Figure 2 ; Figure 4 shows an exploded partial cross-sectional view of the fan in accordance with the present invention ; and Figures 5a and 5b show the sockets and connectors for the control circuit and motor, respectively.
A fan 1 in accordance with the present invention is shown in Figure 1. A motor 2, having a casing 3, drives via a drive shaft 51, a fan impeller unit 4 on which a plurality of fan blades 6 are integrally formed. The operation of the motor 2 is controlled by a control circuit board 8 mounted thereon.
The fan 1 has a fan housing 9 made up of first and second members 10 and 12. The first housing member has a cylindrical hub 50 for receiving both the motor 2 and the control circuit board 8. At the rear of the hub 50 a pair of openings 11 and 13 are provided to receive screws (not shown) to engage the motor 2 and thereby to retain it in position. The second housing member 12 defines the front grille of the fan 1. A chamber 14, inside of which the motor 2 and control circuit board 8 are housed, is defined by the first housing member 10
<Desc/Clms Page number 7>
and a central hub 15 of the second housing member 12.
An O-ring 16 is provided between said first housing member 10 and said hub 15 to form a seal to prevent moisture entering the chamber 14. Alternatively, the sealing could be provided by a lip-seal rather than an O-ring.
The power for the motor 2 is supplied to the control circuit board 8 by a power cable 60 which is fed through a channel 17 defined in the second housing member 12. The power cable 60 is attached to a terminal block 19 provided on the upper surface of the control circuit board 8.
As shown in Figure 2, the motor 2 is provided with first and second connecting spade terminals 18 and 20 provided on support arms 22 and 24, respectively. The support arms 22 and 24 are mounted on the casing 3. The first and second connecting spade terminals 18 and 20 (which may be formed separately from, and then attached to, the support arms 22 and 24) are received in corresponding first and second sockets 26 and 28 provided on the upper surface of the control circuit board 8.
The control circuit board 8 is push-fit mounted on the support arms 22 and 24 such that the spade terminals 18 and 20 are received in the sockets 26 and 28. The engagement of the spade terminals 18 and 20 in the sockets 26 and 28 electrically connects the control circuit 8 to the motor 2 and also mechanically mounts the control circuit board on the outside of the motor.
The control circuit board 8, located on the motor 2, is shown in plan view in Figure 3.
Sockets 26 and 28 for receiving the connectors 18 and 20 are shown in Figure Sa. The sockets 26 and 28 advantageously have spring arms 32 and 34 which engage the sides of the spade terminals 18 and 20 to securely mount the control circuit board 8 in position. The sockets 26 and 28 are further provided with legs 36 and
<Desc/Clms Page number 8>
38 for fixedly mounting them on the control circuit board 8. The spade terminals 18 and 20 are mounted in a case 30, as shown in Figure 5b.
A spacer peg 52 at one end is mounted in a hole 53 of the control circuit board 8 and has a projecting end 54. In the assembled fan, this projecting end 54 locates in a hole 55 of the motor.
The assembly of the fan 1 will now be described with reference to Figure 4. The motor 2, with the drive shaft 51 preassembled therewith, is inserted as a unit into the hub 50 of the first fan housing member 10. It is screwed in place using the screw openings 11,13. The drive shaft of the motor 2 extends through an opening formed in the first fan housing member 10 and, preferably, the front face of the motor abuts the first housing member 10 to seal this opening. The fan impeller unit 4 is attached to the drive shaft 51. This assembly may then be stored for later use with a control circuit board of the desired specification.
A control circuit board 8 which is to be connected to the housing and motor assembly is provided with the spacer peg 52 mounted in the hole 53 and projecting generally perpendicularly to the plane of the board.
When mounting of the board to the motor is to take place, the board is inserted into the hub 50 and mounted on the spade terminals 18 and 20, as described above.
The spade terminals force their way between the spring arms 32, 34 so as to be securely engaged. The spacer peg 52 helps to locate the board on the motor by its projecting end 54 locating in the hole 55 of the motor.
The power supply cable 60 is fed through the channel 17 in the second fan housing member 12 and attached to the terminals 19 on the control circuit 8.
The second fan housing member 12 is then attached to the first housing member 10 and the O-ring 16 (not shown in Figure 4) is provided to seal the junction between the first housing member 10 and the central hub
<Desc/Clms Page number 9>
15 of the second housing member 12. The fan impellerunit 4 is mounted on the output shaft of the motor 2.
The operation of the fan 1 is controlled by the control circuit board 8. As a result of the modular arrangement of the motor 2 and the control circuit board 8, a standardised motor 2 may be tailored to operate the fan 1 in the desired mode by installation of the appropriate control circuit board 8. Typical control circuits include timers, delay timers, humidity switches, temperature switches, pull cord switches, (passive or active) infrared sensors, combinations of the above, and so on.
It will be seen that the electrical connectors (for example the spade terminals 18 and 20 in the preferred embodiment) of the electric motor provide the primary mechanical interconnection between the control circuit board and the electric motor whereby they mechanically mount the circuit board. The mounting of the control circuit board to the electric motor preferably is solder free and requires no additional parts such as studs, screws or the like in addition to the basic push fit connection.

Claims (14)

  1. CLAIMS : 1. An electric fan comprising an electric motor and a motor control circuit board, the electric motor having a drive shaft and at least one connector, the at least one connector being provided to electrically connect the control circuit board to said motor and to mechanically mount said control circuit board, wherein said control circuit board is mountable on said at least one connector of said electric motor after said drive shaft has been installed in said electric motor.
  2. 2. An electric fan as claimed in claim 1, wherein said at least one connector of the electric motor comprises a pin or a socket and the control circuit board is provided with a corresponding socket or pin, respectively, whereby the control circuit board is pushfit mounted to said electric motor.
  3. 3. An electric fan as claimed in claim 2, wherein the pin is provided on the electric motor and the corresponding socket is provided on the control circuit board, and wherein the connector pin passes through the socket and projects from an end thereof remote from the electric motor.
  4. 4. An electric fan as claimed in claim 3, wherein said socket is provided on a side of the control circuit board opposite to the electric motor to receive the distal end of said connector pin.
  5. 5. An electric fan as claimed in claim 2,3 or 4, wherein said socket is defined by spring arms which securely engage the pin.
  6. 6. An electric fan as claimed in any of claims 2 to 5, wherein said pin is a spade terminal.
    <Desc/Clms Page number 11>
  7. 7. An electric fan as claimed in any preceding claim, wherein the electric motor is provided with a pair of connectors, provided respectively at diametrically opposed positions with respect to a generally central longitudinal axis of the electric motor.
  8. 8. An electric fan as claimed in any preceding claim, comprising a support member, not providing an electrical connection, and providing further mechanical support for the control circuit board on the electric motor.
  9. 9. An electric fan as claimed in any preceding claim, wherein, in plan view, the control circuit board is substantially the same shape and size as the electric motor.
  10. 10. An electric fan as claimed in any preceding claim, wherein said electric motor and said control circuit board are housed in a single chamber in a fan housing of said fan.
  11. 11. An electric fan as claimed in claim 10, wherein said chamber is sealed by a lip-seal between a first member and a second member of the fan housing.
  12. 12. An electric motor for use in an electric fan as claimed in any of claims 1 to 11, comprising said drive shaft and said at least one connector, wherein said at least one connector is suitable for electrically connecting a said motor control circuit board to said electric motor and for mechanically mounting said control circuit board after the drive shaft has been installed in said electric motor.
  13. 13. A motor control circuit board for controlling an electric motor of an electric fan as claimed in any of claims 1 to 11, wherein said control circuit board has
    <Desc/Clms Page number 12>
    at least one mating connector for electrically connecting said control circuit board to said at least one connector and for mechanically mounting said control circuit board.
  14. 14. An electric fan substantially as hereinbefore described with reference to the accompanying drawings.
GB0307224A 2002-03-28 2003-03-28 Electric fans Expired - Fee Related GB2385716B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0207467.2A GB0207467D0 (en) 2002-03-28 2002-03-28 Electric fans

Publications (3)

Publication Number Publication Date
GB0307224D0 GB0307224D0 (en) 2003-04-30
GB2385716A true GB2385716A (en) 2003-08-27
GB2385716B GB2385716B (en) 2004-09-22

Family

ID=9934005

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0207467.2A Ceased GB0207467D0 (en) 2002-03-28 2002-03-28 Electric fans
GB0307224A Expired - Fee Related GB2385716B (en) 2002-03-28 2003-03-28 Electric fans

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0207467.2A Ceased GB0207467D0 (en) 2002-03-28 2002-03-28 Electric fans

Country Status (4)

Country Link
BE (1) BE1014510A6 (en)
DE (1) DE20304762U1 (en)
FR (1) FR2840121A1 (en)
GB (2) GB0207467D0 (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056299A (en) * 1976-05-03 1977-11-01 Burroughs Corporation Electrical connector
GB2182500A (en) * 1985-10-31 1987-05-13 Black & Decker Inc Improvements in or relating to electric motors and components therefor
US4800307A (en) * 1985-09-18 1989-01-24 Papst-Motoren Gmbh Replaceable circuit board mounting system in outer rotor motors
US4910420A (en) * 1988-07-27 1990-03-20 Nidec Corporation Brushless electric motor
US5131853A (en) * 1991-08-12 1992-07-21 Delco Electronics Corporation Low profile receptacle terminal for soldering to a circuit board
GB2260861A (en) * 1991-09-30 1993-04-28 Papst Motoren Gmbh & Co Kg Two part casing for a flat small blower
US5320558A (en) * 1993-06-14 1994-06-14 Supplie & Co. Import/Export Inc. Quick connect and disconnect electrical terminal
DE19816502A1 (en) * 1997-04-15 1998-11-12 Whitaker Corp Electrical lead terminal clamp
US5895944A (en) * 1996-11-08 1999-04-20 Nec Corporation Charge coupled device image sensor and method of driving the same
US6271609B1 (en) * 1999-03-25 2001-08-07 General Electric Company Programmable electric motor and method of assembly
US6276946B1 (en) * 1998-10-26 2001-08-21 Wilo Gmbh Plug-in connection for electric motors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD248682A1 (en) * 1985-05-30 1987-08-12 Suhl Elektrogeraete Veb K ARRANGEMENT FOR THE MANUFACTURE OF ELECTRICAL CONNECTIONS IN AN ELECTRIC MOTOR
AT912U1 (en) * 1995-07-27 1996-07-25 Balzer Luefter Gmbh FAN WITH INTERCHANGEABLE FUNCTION BLOCK, ESPECIALLY ELECTRICAL CONTROL BLOCK
DE19652652A1 (en) * 1996-12-18 1998-06-25 Miele & Cie Blower unit with speed control circuit board e.g. for domestic vacuum cleaner
US5895994A (en) * 1997-01-30 1999-04-20 General Electric Company Dynamoelectric machine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056299A (en) * 1976-05-03 1977-11-01 Burroughs Corporation Electrical connector
US4800307A (en) * 1985-09-18 1989-01-24 Papst-Motoren Gmbh Replaceable circuit board mounting system in outer rotor motors
GB2182500A (en) * 1985-10-31 1987-05-13 Black & Decker Inc Improvements in or relating to electric motors and components therefor
US4910420A (en) * 1988-07-27 1990-03-20 Nidec Corporation Brushless electric motor
US5131853A (en) * 1991-08-12 1992-07-21 Delco Electronics Corporation Low profile receptacle terminal for soldering to a circuit board
GB2260861A (en) * 1991-09-30 1993-04-28 Papst Motoren Gmbh & Co Kg Two part casing for a flat small blower
US5320558A (en) * 1993-06-14 1994-06-14 Supplie & Co. Import/Export Inc. Quick connect and disconnect electrical terminal
US5895944A (en) * 1996-11-08 1999-04-20 Nec Corporation Charge coupled device image sensor and method of driving the same
DE19816502A1 (en) * 1997-04-15 1998-11-12 Whitaker Corp Electrical lead terminal clamp
US6276946B1 (en) * 1998-10-26 2001-08-21 Wilo Gmbh Plug-in connection for electric motors
US6271609B1 (en) * 1999-03-25 2001-08-07 General Electric Company Programmable electric motor and method of assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PAJ abstract and JP 06-0327309 A (Matsushita) *

Also Published As

Publication number Publication date
BE1014510A6 (en) 2003-11-04
GB2385716B (en) 2004-09-22
FR2840121A1 (en) 2003-11-28
GB0307224D0 (en) 2003-04-30
GB0207467D0 (en) 2002-05-08
DE20304762U1 (en) 2003-07-24

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080328