JP5368166B2 - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner, capable of improving seal performance between an inducer part and the suction side of an electric blower, while restricting transmission of vibration due to driving of the electric blower to the external. <P>SOLUTION: The downstream end side of the inducer part 37 is inserted and connected to an opening 71 of an electric blower cover 46. The downstream end side of the inducer part 37 and the suction side of the electric blower 45 elastically supported in the electric blower cover 46 are gas-tightly connected by a seal member 62. Displacement of the inducer part 37 and the electric blower 45 is restricted, thus improving seal performance between the inducer part 37 and the suction side of the electric blower 45. Since a suction side position of the electric blower 45 of which vibration due to driving of the electric blower 45 is relatively small is thus supported to the inducer part 37 by the seal member 62, transmission of vibration due to rotation driving of the electric blower 45 to the external can be restricted. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a vacuum cleaner that rectifies sucked air to a suction side of an electric blower by a rectifier.

  2. Description of the Related Art Conventionally, this type of vacuum cleaner includes a vacuum cleaner body, and a pipe portion that includes a hose body, an extension pipe, a floor brush as a suction port body, and the like and is connected to the cleaner body. The vacuum cleaner main body has a hollow main body case, and a main body suction port to which the pipe portion is connected is formed in the front portion of the main body case. In addition, a partition wall is formed inside the main body case, and this partition accommodates a main body dust collection chamber for collecting dust sucked from the pipe portion via the main body suction port, and an electric blower. The electric blower chamber and the cord reel chamber that houses the cord reel are partitioned in the front and rear in the main body case. Furthermore, the inducer part which is a rectifier which connects a main body dust collection chamber and an electric blower chamber is formed in the partition. This inducer section rectifies the sucked air from the main body dust collection chamber to the electric blower chamber, and is formed so as to gradually narrow from the main body dust collection chamber side to the electric blower chamber side. On the other hand, foamed rubber as a support member is attached around the fan cover on the front side which is the suction side of the electric blower. A support rubber as a support member is attached to the rear side which is the exhaust side of the electric blower. The electric blower is elastically supported in the electric blower chamber via foam rubber and support rubber, and the suction side thereof is downstream of the inducer portion (exhaust side) via the front end portion of the foam rubber. They are connected in communication (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-76118 (page 3-5, FIG. 1)

  However, in the above-described electric vacuum cleaner, only the sealing property is obtained by the close contact between the rear portion of the inducer portion and the foam rubber disposed on the outer periphery of the fan cover of the electric blower, which is the downstream end of the inducer portion. There is a problem that the opening on the downstream side and the suction port that is the end portion on the suction side of the electric blower are not sealed from each other.

  The vibration of the electric blower is generated by cutting the wind with a centrifugal fan. Therefore, the outer periphery of the centrifugal fan, that is, the outer periphery of the fan cover is the portion with the largest vibration in the electric blower. For this reason, in the said structure which supports the outer periphery of this fan cover with foamed rubber, there also exists a problem that the vibration accompanying the drive of an electric blower is easy to be transmitted to a main body case.

  The present invention has been made in view of the above points, and can improve the sealing performance between the rectifier and the suction side of the electric blower, while suppressing the transmission of vibrations accompanying the drive of the electric blower to the outside. The purpose is to provide a vacuum cleaner.

The present invention is arranged in a body case in communication with a suction port, rectifies air from one end side to the other end side, and has a cylindrical rectifier body having a groove on the other end side, and the rectifier body An electric blower cover having an opening having an edge fitted to and connected to the groove on the other end side , and one end of the opening between the rectifier and the opening of the electric blower cover , attached to the groove of the rectifier Electric blower comprising a buffer member positioned across the side and the other end, a fan part having a rotatable centrifugal fan, and an electric motor part whose outer shape is smaller than the maximum outer shape of the fan part and rotating the centrifugal fan And a supporting means for elastically supporting the electric motor part of the electric blower with respect to the inside of the electric blower cover, and the suction of the electric blower, located between the suction side of the electric blower and the other end side of the rectifier A sealing member connecting the side and the other end of the rectifier It is those equipped.

According to the present invention, the buffer member is attached to the groove portion on the other end side of the rectifier , the edge of the opening of the electric blower cover is fitted to the groove portion on the other end side of the rectifier body, and the buffer member is connected to one end side of the opening. with connection so as to be positioned over the other end, and a suction side of the elastically supporting the electric blower to the other side and the electric blower in the cover of the flow regulator, by connecting the sealing member, integer The position difference between the fluid and the electric blower can be suppressed, the sealing performance between the rectifier and the suction side of the electric blower can be improved, and the position on the suction side where vibration caused by the drive of the electric blower is relatively small is a sealing member Therefore, it is made difficult to transmit to the rectifying body side by the buffer member while being supported by the rectifying body, so that transmission of vibration due to driving of the electric blower to the outside can be suppressed.

It is explanatory drawing which shows typically the principal part of the vacuum cleaner of the 1st related technique of this invention. It is a perspective view of a vacuum cleaner same as the above. It is explanatory drawing which shows typically the principal part of the vacuum cleaner of the 2nd related technique of this invention. It is explanatory drawing which shows typically the principal part of the vacuum cleaner of one embodiment of this invention. It is explanatory drawing which shows typically the principal part of the vacuum cleaner of the one reference technique of this invention.

The configuration of the first related technique of the present invention will be described below with reference to FIGS.

  In FIG. 2, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 has a pipe part 12 and a vacuum cleaner body 13 to which the pipe part 12 is detachably connected.

  The pipe part 12 includes a connection pipe part 15 whose front end side is bent forward with respect to a base end side connected to the cleaner body 13, and a flexible hose body 16 communicating with the front end side of the connection pipe part 15. A hand operating part 17 provided on the front end side of the hose body 16, an extension pipe 18 detachably connected to the front end side of the hand operating part 17, and a hand attached to the front end side of the extension pipe 18 And a floor brush 19 as a suction port to be connected.

  On the hand operating portion 17, a gripping portion 21 protrudes toward the hose body 16, and the gripping portion 21 is provided with a plurality of setting buttons 22 for operation.

  Further, as shown in FIGS. 1 and 2, the cleaner main body 13 includes a hollow main body case 25 formed of, for example, a synthetic resin. Inside the main body case 25, a main body dust collecting chamber 27, an electric blower chamber 28, and a cord reel chamber (not shown) are partitioned in the front-rear direction through a partition wall 26.

  The main body case 25 has a lower case 31 whose upper side is open, an upper rear portion of the lower case 31, that is, an upper case 32 that covers the upper part of the electric blower chamber 28 and the cord reel chamber, and the lower case 31 or the upper case 32. And a main body lid 33 that is pivotably connected to open and close the main body dust collecting chamber 27. In addition, on both sides of the lower case 31 on the rear side, there are large-diameter traveling wheels 34 (only one is shown) for allowing the cleaner body 13 (main body case 25) to travel on the floor surface to be cleaned. It is attached so that it can rotate freely. Further, a plurality of exhaust holes 35 communicating with the electric blower chamber 28 are formed in the main body case 25 at the rear portion of the upper case 32, for example. The main body lid 33 is formed with a main body suction port 36 to which the connecting pipe portion 15 that is the base end side of the pipe portion 12 is connected.

  The partition wall 26 is separate from the main body case 25, for example, and is formed along the left-right width direction of the main body case 25. Further, the partition wall 26 is formed with a substantially cylindrical inducer portion 37 that is a rectifier that communicates the main body dust collection chamber 27 and the electric blower chamber 28. That is, the inducer portion 37 constitutes a part of the partition wall 26 that partitions the main body dust collecting chamber 27 and the electric blower chamber 28 (and the cord reel chamber).

  The inducer portion 37 is gradually reduced in diameter from the upstream opening 37a of the main body dust collection chamber 27 on one end side, that is, the front side, to the downstream opening 37b of the electric blower chamber 28 on the other end side, that is, the rear side. Thus, it is formed in a funnel shape, and is configured to rectify air along the inner peripheral surface 37c. Further, a flange-like connected portion 37d is integrally formed at the rear end portion of the inducer portion 37 so as to protrude in the radial direction over the entire periphery of the peripheral portion of the downstream opening 37b. Further, a groove portion 37e is formed on the entire outer periphery of the connected portion 37d of the inducer portion 37.

The inducer portion 37 is formed integrally with the partition wall 26 in the related technology , but may be formed separately.

  The main body dust collection chamber 27 is a part that communicates with the main body suction port 36 and collects dust, and includes a filter (not shown) that covers the upstream opening 37a of the inducer 37 inside. The main body dust collecting chamber 27 may be detachable with a dust collecting part such as a dust collecting bag or a cyclone type dust collecting device.

  The electric blower chamber 28 is partitioned, for example, on one side behind the partition wall 26 and houses the electric blower unit 41 therein.

  The electric blower unit 41 is configured separately from the inducer unit 37, and includes an electric blower 45 and a substantially cylindrical electric blower cover 46 that covers the electric blower 45.

  The electric blower 45 is also called a fan motor, and operates in a predetermined operation mode set by the setting button 22 by a control circuit (not shown) that is a control means disposed in the main body case 25 above the electric blower 45. Then, dust is sucked together with air through the pipe portion 12. The electric blower 45 includes a substantially cylindrical case body 48 that constitutes an outline of a motor part (motor part) 47 located at the rear, a centrifugal fan 49 located at the front and rotated by the motor part 47, and the centrifugal fan A fan portion 51 having a substantially cylindrical fan cover 50 covering 49 is connected and fixed to each other. The electric blower 45 is elastically supported (suspended) inside the electric blower cover 46 via an elastic support portion 54 which is an elastic support means as a support means.

  The case body 48 is formed such that the maximum outer diameter dimension that is the maximum outer shape of the electric motor section 47 is smaller than the maximum outer diameter dimension of the fan cover 50 that is the maximum outer diameter of the fan section 51. Further, the case body 48 is arranged along the axial direction in the front-rear direction, and a substantially cylindrical motor head portion 56 as a bearing portion is integrally formed at the rear end portion and protrudes rearward. . Inside the motor head portion 56 are a bearing as a bearing portion that rotatably holds the rotating shaft 47a of the electric motor portion 47, and a thrust spring that biases the rotating shaft 47a of the electric motor portion 47 toward the fan cover 50. Etc. are housed. A plurality of exhaust ports 57 of the electric blower 45 are formed around the case body 48.

  The fan cover 50 is fitted to the front portion of the case body 48 and covers the centrifugal fan 49. Further, the fan cover 50 is formed so as to expand from the front end side to the rear end side, the outer diameter dimension of the front end side is smaller than the outer diameter dimension of the case body 48, and the rear end side Is set to be larger than the outer diameter of the case body 48. Further, a suction port 61 that is a circular air introduction opening is formed in the center of the front side of the fan cover 50. An annular seal member 62 is attached on the front side of the fan cover 50 and around the suction port 61 so as to be in close contact with the rear surface of the connected portion 37d of the inducer portion 37.

  The seal member 62 is formed in an annular shape by an elastic member such as rubber or elastomer, or a soft member, for example, and the rear surface is attached to the fan cover 50 via a double-sided tape or the like. Therefore, the seal member 62 can hermetically connect the downstream opening 37b of the inducer portion 37 and the suction port 61 of the electric blower 45. Further, the inner diameter of the seal member 62 is set substantially equal to the diameter dimension of the downstream opening 37b of the inducer portion 37. Further, the seal member 62 is disposed on the peripheral edge of the suction port 61. Therefore, the seal member 62 has an outer diameter smaller than the outer diameter of the case body 48 on the electric motor unit 47 side, and is disposed in the vicinity of the rotating shaft 47a of the electric blower 45.

  The elastic support portion 54 includes an annular inner support portion 65 fixed to the outer periphery of the case body 48, and an annular outer support portion 66 fixed inside the electric blower cover 46. These support portions 65, A plurality of coil springs 67 as elastic support members are attached radially between 66 along the radial direction. The elastic support portion 54 supports the vicinity of the center of gravity of the electric blower 45, and the coil spring 67 is disposed toward the center of gravity of the electric blower 45.

  The configuration of the elastic support portion 54 is not limited to a configuration in which a plurality of coil springs 67 are disposed between the support portions 65 and 66, but the motor portion 47 of the electric blower 45 is elastically formed by, for example, a plurality of leaf springs as elastic support members. It is possible to adopt any configuration, such as a configuration that supports the target.

  The electric blower cover 46 is also called a motor cover, and is formed in a substantially cylindrical shape by, for example, a synthetic resin, and both side portions are fixed to the main body case 25 by, for example, screwing. Therefore, a space 69 is formed between the lower part of the electric blower cover 46 and the lower case 31 of the main body case 25. In other words, the electric blower unit 41 is supported in a state where the lower side is floated with respect to the electric blower chamber 28.

  Furthermore, the electric blower cover 46 is formed with a circular opening 71 as a cover suction port in the central portion on the front end side. The opening 71 communicates the outside and the inside of the electric blower cover 46, and the inner edge portion is fitted into the groove portion 37e of the inducer portion 37. That is, the inducer portion 37 is inserted into the electric blower cover 46 on the rear side of the groove portion 37e of the connected portion 37d and is engaged with the inner edge of the opening 71, and moreover than the groove portion 37e of the connected portion 37d. The front side is engaged with the inner edge of the opening 71 on the front surface of the electric blower cover 46.

  In addition, a head accommodating portion 72 is formed at the rear portion of the electric blower cover 46 as a protruding portion that protrudes backward corresponding to the motor head portion 56 of the electric blower 45. Therefore, the head accommodating portion 72 is separated from the motor head portion 56 of the electric blower 45. In other words, the rear of the electric blower 45 is not fixed (non-contact) to the electric blower cover 46. Further, the head accommodating portion 72 is separated from the rear portion of the main body case 25.

  Further, the electric blower cover 46 is divided into upper and lower parts. That is, the electric blower cover 46 includes a lower cover portion 74 that is one cover portion and an upper cover portion 75 that is the other cover portion. The lower cover portion 74 and the upper cover portion 75 are divided into upper and lower portions with a horizontal plane passing through the central axis of the electric blower cover 46 as a boundary, for example, and can be fixed integrally with each other via screws (not shown). Yes. That is, the lower cover portion 74 and the upper cover portion 75 divide the opening 71 and the head accommodating portion 72 substantially vertically. Further, a cover exhaust port 77 for exhausting air from the electric blower cover 46 is formed at the rear side of the lower portion of the lower cover portion 74, which is the lower portion of the electric blower cover 46. The cover exhaust port 77 is configured to open forward and communicate with the space portion 69 by a guide portion 78 protruding in a curved shape (arc shape) from the lower portion of the lower cover portion 74 toward the front. Yes.

  The electric blower cover 46 may be configured to be divided into, for example, left and right.

  Further, the cord reel chamber is partitioned on the other side behind the partition wall 26, for example, and accommodates a cord reel for supplying power to the electric blower 45 and the control circuit. Note that the cord reel chamber and the cord reel are not required in the case of a configuration in which power is supplied to the electric blower 45, the control circuit, and the like by using, for example, a secondary battery.

Next, the operation of the first related technique will be described.

  When assembling the electric blower unit 41 to the electric blower chamber 28, first, the lower cover portion 74 of the electric blower cover 46 is attached to the electric blower chamber 28, and then the electric blower 45 to which the elastic support portion 54 is attached is elastic. By fixing the lower side of the outer support part 66 of the support part 54 on the lower cover part 74, the support part 54 is arranged on the lower cover part 74.

  In this state, by attaching the upper cover portion 75 to the lower cover portion 74 and the electric blower 45 from the upper side, the edge portion of the opening 71 is fitted into the groove portion 37e of the inducer portion 37, and the connected portion 37d Is attached to the front part of the electric blower 45 accommodated in the electric blower cover 46 by connecting the inducer part 37 and the electric blower cover 46 by sandwiching the upper cover part 75 and the lower cover part 74 from above and below. The seal member 62 is pressed against the rear surface of the connected portion 37d inserted into the electric blower cover 46, and the downstream opening 37b of the inducer portion 37 and the suction port 61 of the electric blower 45 are positioned substantially coaxially. They are airtightly connected to each other.

  When cleaning, the operator operates the setting button 22 shown in FIG. 2 in a state in which power can be supplied to the electric blower 45, so that the control circuit in the cleaner main body 13 causes the electric blower 45 to operate. Drive. That is, the electric motor unit 47 of the electric blower 45 rotates the centrifugal fan 49 to generate a negative pressure. At this time, the vibration accompanying the rotation of the centrifugal fan 49 of the electric blower 45 is absorbed by the expansion and contraction of the coil spring 67 of the elastic support portion 54, and transmission to the electric blower cover 46 is suppressed. Further, the negative pressure generated by driving the electric blower 45 moves the electric blower 45 together with the seal member 62 so as to be sucked forward (upstream side), and seals to the rear surface of the connected portion 37d of the inducer portion 37. The member 62 is press-contacted, and the downstream opening 37b, which is the downstream end of the inducer portion 37, and the suction port 61 of the electric blower 45 are airtightly connected.

  The operator places the floor brush 19 on the floor surface, grips the grip portion 21, and travels the floor brush 19 back and forth, so that the negative pressure of the electric blower 45 causes the negative pressure of the electric blower 45 to move from the front end side. Inhale dust with air. This sucked air is sucked into the main body dust collection chamber 27 shown in FIG. 1 through the extension pipe 18, the hose body 16 and the connecting pipe section 15 together with dust, and the main body dust collection chamber 27 collects dust. Be collected. Then, the suction air in which the dust is collected is sucked into the suction port 61 of the electric blower 45 from the downstream opening 37b of the inducer portion 37 while being rectified along the inner peripheral surface 37c of the inducer portion 37. Then, the electric blower 45 passes through while cooling and becomes exhaust air, and is exhausted from the exhaust port 57 to the outside of the electric blower 45. Thereafter, the exhaust air is exhausted forward to the space 69 through the cover exhaust port 77 along the guide part 78 of the electric blower cover 46, and further the front part of the electric blower cover 46 (electric blower part 41). After flowing upward, the air flows from the exhaust hole 35 of the main body case 25 to the outside of the main body case 25 while flowing backward through the upper part of the electric fan cover 46 (electric fan section 41) to cool the control circuit and the like. Is done.

  When the cleaning is completed, the operator appropriately operates the setting button 22 to stop the driving of the electric blower 45.

As described above, according to the first related technique , the downstream end side of the inducer portion 37 is inserted and connected to the opening 71 of the electric blower cover 46, and the downstream end side of the inducer portion 37 and the electric blower are connected. By connecting the suction side of the electric blower 45 elastically supported in the cover 46 by the seal member 62, positional deviation between the inducer portion 37 and the electric blower 45 is suppressed, and the inducer portion 37 and the electric blower 45 are electrically driven. The seal portion 62 can improve the sealing performance between the suction side of the blower 45 and the position of the suction side of the electric blower 45 in the vicinity of the rotary shaft 47a where vibration caused by the drive of the electric blower 45 is relatively small. Since it is supported by 37, it is possible to suppress the transmission of vibration accompanying the rotational drive of the electric blower 45 to the outside (the electric blower cover 46, the partition wall 26 or the main body case 25).

  That is, by connecting the inducer portion 37 and the electric blower cover 46 in the axial direction, the inducer portion 37 and the electric blower cover 46 are prevented from being displaced in the axial direction, and the electric blower cover 46 The electric blower 45 is elastically accommodated in the inside thereof, so that the displacement of the electric blower 45 with respect to the electric blower cover 46 is absorbed by the expansion and contraction of the coil spring 67 of the elastic support portion 54, and the inducer portion 37 and the electric blower 45 Can be prevented from being separated (displaced) in the axial direction, so that the sealability between the inducer portion 37 and the electric blower 45 can be ensured.

  And since the sealing property between the inducer part 37 and the electric blower 45 can be secured, the air sucked by the drive of the electric blower 45 can be prevented from leaking at the connection part between the inducer part 37 and the electric blower 45, and the suction Reduction in efficiency can be suppressed.

  Further, the vibration of the electric blower 45 is generated by cutting the wind by the centrifugal fan 49. Therefore, the outer periphery of the fan unit 51, that is, the outer periphery of the fan cover 50, is the portion with the largest vibration in the electric blower 45. However, the front end portion of the fan cover 50, which is the suction side end portion of the electric blower 45, is the portion with the smallest diameter in the fan cover 50 and is in the vicinity of the rotating shaft 47a. Since the electric blower 45 can be supported by the inducer portion 37 at a portion where the vibration of the electric blower 45 is relatively small, the vibration accompanying the rotational drive of the electric blower 45 is transmitted to the outside. Can be suppressed.

  Furthermore, by setting the downstream opening 37b of the inducer portion 37 and the inner peripheral side of the seal member 62 to have substantially the same diameter, pressure loss at the portion from the inducer portion 37 to the suction side of the electric blower 45 is suppressed. it can.

  In addition, by forming the groove portion 37e into which the edge portion of the opening 71 of the electric blower cover 46 is fitted in the inducer portion 37, the inducer portion 37 and the electric blower cover 46 can be more reliably connected.

  In addition, by inserting the groove 37e between the lower cover portion 74 and the upper cover portion 75 constituting the electric blower cover 46, the inducer portion 37 and the electric blower cover 46 can be reliably connected and fixed.

  Then, a rear end portion that is an end portion on the exhaust side of the electric blower 45, that is, a rotary bearing portion that holds the rotating shaft 47a of the electric blower 45 by making the motor head portion 56 non-fixed to the electric blower cover 46. Can be prevented from being transmitted to the electric blower cover 46 from the motor head portion 56 that accommodates the electric blower.

  Further, by covering up to the suction port 61 of the electric blower 45 with the electric blower cover 46, it is possible to prevent noise accompanying the rotational drive of the electric blower 45 from leaking outside the electric blower cover 46.

  Further, the electric blower 45 elastically supports the electric blower cover 46 with the elastic support portion 54 on the outside of the electric motor portion 47 having a smaller diameter than the fan portion 51, so that vibration associated with the rotational drive of the electric blower 45 is generated. Transmission to the electric blower cover 46 can be more reliably suppressed. That is, by avoiding the outer periphery of the fan part 51 with relatively large vibrations and supporting the outer periphery of the motor part 47 near the rotation shaft 47a and with relatively small vibrations by the elastic support part 54, the rotation of the electric blower 45 is accompanied. Transmission of vibration to the outside can be more reliably suppressed.

  Further, by fixing both sides of the electric blower cover 46 to the lower case 31, the lower part of the electric blower unit 41 is separated from the lower case 31, and vibrations associated with driving of the electric blower 45 are reduced. It is difficult to transmit to the side.

  Further, by making it difficult to transmit the noise and vibration associated with driving the electric blower 45 to the outside of the electric blower cover 46 and the main body case 25, it is possible to reduce the noise of the electric vacuum cleaner 11.

Next, a second related technique will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st related technique , the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the second related art , in the first related art , the rear part of the electric blower 45 is moved forward along the axial direction by the electric blower biasing means 81 with respect to the electric blower cover 46, that is, the inducer part 37. It is energized to the side.

  This electric blower biasing means 81 is a coil as an electric blower biasing body between an attachment support part 83 attached to the rear part of the motor head part 56 of the electric blower 45 and the head accommodating part 72 of the electric blower cover 46. A spring 84 is interposed.

  The attachment support portion 83 is formed in a substantially cylindrical shape that is open on the front side that is one end side and closed on the rear side that is the other end side, and is attached so as to cover the motor head portion 56.

  The coil spring 84 has a front end portion that is one end portion fixed to the attachment support portion 83, and a rear end portion that is the other end portion fixed to the electric blower cover 46.

  The electric blower biasing means 81 can be arbitrarily configured as long as the rear portion of the electric blower 45 can be biased toward the inducer portion 37 along the axial direction.

  Then, by energizing the electric blower 45 toward the inducer portion 37 by the electric blower biasing means 81, the seal member 62 and the rear surface of the connected portion 37d of the inducer portion 37 are more closely adhered to each other. Thus, the sealing performance between the inducer portion 37 and the suction side of the electric blower 45 can be further improved, and the axial vibration associated with the rotational drive of the electric blower 45 can be absorbed by the electric blower biasing means 81.

Next, an embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said each related technique , the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the first embodiment, the buffer member 87 is fitted and held in the groove portion 37e of the inducer portion 37 in the first related art .

  The buffer member 87 is formed in an annular shape from, for example, a vibration-proof material such as rubber, and a fitting groove portion 87a into which the edge of the opening 71 of the electric blower cover 46 is fitted is formed on the outer peripheral surface. The buffer member 87 is fitted and held in the groove portion 37e of the inducer portion 37 together with the edge portion of the opening 71 of the electric blower cover 46.

  Thus, by arranging the buffer member 87 between the inducer portion 37 and the opening 71 of the electric blower cover 46, vibration caused by the rotational drive of the electric blower 45 is caused to pass through the inducer portion via the electric blower cover 46. It is more difficult to transmit to 37, and it is possible to more reliably suppress the vibration associated with the rotational drive of the electric blower 45 from being transmitted to the partition wall 26 and the main body case 25 via the inducer portion 37.

Next, one reference technique will be described with reference to FIG. In addition, about the structure and effect | action similar to each said related technology and embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

This one reference technique is that in the first related technique , the electric blower portion 41, that is, the electric blower cover 46, is elastic from the lower side toward the upper side by the electric blower portion urging means 91, 91 with respect to the lower case 31. Supportive.

  The electric blower unit urging means 91, 91 are disposed on the front side and the rear side of the center of gravity of the electric blower unit 41 (the center of gravity of the electric blower 45), for example, and mounted on the lower case 31. A coil spring 95 as an electric blower portion urging body is arranged between the portion 93 and the cover side attachment portion 94 attached to the lower portion of the lower cover portion 74 of the electric blower cover 46. The electric blower unit urging means 91 and 91 may be inclined so as to be urged toward the center of gravity of the electric blower unit 41 (the center of gravity of the electric blower 45). Further, the electric blower unit urging means 91 can be arbitrarily configured as long as it can elastically support the electric blower unit 41 with respect to the main body case 25. Further, only one electric blower unit urging means 91 may be arranged so as to urge the vicinity of the center of gravity of the electric blower unit 41 (the center of gravity of the electric blower 45), or three or more electric blower units may be arranged. .

  Then, the electric blower unit 41 is elastically supported by the electric blower unit urging means 91, 91 with respect to the main body case 25, so that the vibration associated with the rotational drive of the electric blower 45 is transmitted through the electric blower cover 46. It can be harder to communicate to case 25.

  In addition, in each said embodiment, the detail of the vacuum cleaner 11 is not limited to the said structure, For example, not only the canister type vacuum cleaner 11 but the floor brush in the lower part of the vertically long vacuum cleaner main body 13 Any vacuum cleaner such as an upright type vacuum cleaner connected to 19 or a handy type vacuum cleaner can be used.

11 Vacuum cleaner
25 Main unit case
36 Main unit inlet
37 Inducer part which is a rectifier
37e Groove
45 Electric blower
46 Electric blower cover
47 Motor part
49 Centrifugal fan
51 Fan section
54 Elastic support as support means
62 Seal member
71 opening
81 Electric blower biasing means
87 Buffer member

Claims (3)

A body case with a body inlet,
In the main body case is arranged in communication with the main body suction port, rectifies air from one end side to the other end side, and a cylindrical rectifier body having a groove on the other end side ,
An electric blower cover having an opening in which the edge is fitted and connected to the groove on the other end side of the rectifier;
A buffer member attached to the groove portion of the rectifying body and positioned between one end side and the other end side of the opening between the rectifying body and the opening of the electric blower cover,
An electric blower comprising: a fan unit having a rotatable centrifugal fan; and an electric motor unit whose outer shape is smaller than a maximum outer shape of the fan unit and rotating the centrifugal fan ;
Support means for elastically supporting the electric motor part of the electric blower with respect to the inside of the electric blower cover;
An electric device comprising: a sealing member positioned between the suction side of the electric blower and the other end side of the rectifier, and connecting the suction side of the electric blower and the other end side of the rectifier. Vacuum cleaner . Electric blower, electric vacuum cleaner according to claim 1, wherein the end portion of the exhaust side of the electric blower cover is characterized in that in the non-stationary. The electric vacuum cleaner according to claim 1 or 2 , further comprising an electric blower biasing means for biasing the electric blower toward the rectifier .

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