JP2019208928A - Vacuum cleaner - Google Patents

Abstract

To solve the problem that holes for screws have to be arranged in a wiring board surface since a wiring board is arranged in parallel with a shaft of an electric blower and the wiring board is fixed by using screws on an outer side of the electric blower in a circumferential direction, so that an area of the wiring board becomes larger to cause an increase in weight and addition of the weight of a screw, thereby not to meet a requirement of size-reduction and weight-saving.SOLUTION: A vacuum cleaner includes: a wiring board where various kinds of electric elements are mounted, an electric blower, and a case for holding the wiring board and the electric blower. The case includes a first case and a second case. The first case and the second case hold an outer periphery of the wiring board and an outer periphery of the electric blower between the cases.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a vacuum cleaner, and more particularly to a wiring board mounting structure for a vacuum cleaner.

  There are known types of vacuum cleaners that are called handy type, stick type, upright type, etc., in which a user holds a body containing heavy items such as an electric blower in his / her hand or manipulates it by hand. For example, see Patent Document 1).

JP 2017-393 (page 6, FIG. 12)

  Such a type of vacuum cleaner is required to be small and light in weight so that the user can easily handle it. However, in the vacuum cleaner described in Patent Document 1, an electric blower is provided outside the circumferential direction of the electric blower. Since screws are used to fix the wiring board so that the wiring board is arranged parallel to the axis of the wiring board, it is necessary to provide a screw hole on the wiring board surface, and the area of the wiring board increases accordingly. However, there is a problem that the weight is increased and the weight of the screw is added, which is contrary to the demand for a small size and light weight.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vacuum cleaner that is small and lightweight and easy for a user to handle.

  The vacuum cleaner of the present invention that solves the problem includes a wiring board on which various electric elements are mounted, an electric blower, and a case that holds the wiring board and the electric blower. The case includes a first case and a second case. The first case and the second case hold the outer periphery of the wiring board and the outer periphery of the electric blower so as to be sandwiched between them.

  According to the present invention, since the first case and the second case hold the outer periphery of the wiring board and the outer periphery of the electric blower, it is not necessary to use screws to fix the wiring board. By not increasing the area of the wiring board, it is possible to provide an electric motor that is small and lightweight and easy for the user to handle.

It is a perspective view which shows the external appearance of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is the external view which looked at the main-body part of the vacuum cleaner which concerns on Embodiment 1 of this invention from the side surface direction. It is sectional drawing seen from the side surface direction of the main-body part of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view of the storage case assembly in which the electric blower, the first wiring board, and the second wiring board of the electric vacuum cleaner according to Embodiment 1 of the present invention are incorporated and held. The perspective view which shows the state which decomposed | disassembled the storage case assembly of the vacuum cleaner which concerns on Embodiment 1 of this invention into the 1st case, the 2nd case, the 1st wiring board, the 2nd wiring board, and the electric blower. FIG. It is a perspective view which shows the state which hold | maintained the electric blower, the 1st wiring board, and the 2nd wiring board in the 1st case of the vacuum cleaner which concerns on Embodiment 1 of this invention. (A) The perspective view which looked at the 1st wiring board from the 1st surface (front surface) side, (b) The perspective view which looked at the 2nd wiring board from the 1st surface (front surface) side. (A) The top view which looked at the 1st wiring board from the 2nd surface (back surface) side, (b) The principal part enlarged view of the A section (projection shape) shown to (a). It is a schematic plan view which shows the dimensional relationship of a 1st wiring board. (A) The top view which looked at the 1st case where the electric blower and wiring board of the vacuum cleaner which concern on Embodiment 1 of this invention are integrated and hold | maintained from the surface direction holding a wiring board and an electric blower, ( b) It is a principal part enlarged view of the B section shown to (a). (A) The top view which looked at the 1st case of the vacuum cleaner which concerns on Embodiment 1 of this invention from the surface direction holding a wiring board and an electric blower, (b) The principal part of the D section shown to (a) It is an enlarged view. (A) It is the side view of the 1st case seen from the arrow E direction shown to Fig.11 (a), (b) It is the principal part enlarged view of the F section shown to (a). It is principal part sectional drawing cut | disconnected by the cutting line CC shown in FIG. It is the top view which looked at the 2nd case of the vacuum cleaner which concerns on Embodiment 1 of this invention from the surface direction holding a wiring board and an electric blower.

Embodiment 1 FIG.
(Configuration of vacuum cleaner)
Hereinafter, the configuration of the vacuum cleaner 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.
Note that in each drawing, the same reference numerals are given to the same portions or corresponding portions, and a part of the description may be omitted.
The present invention is not limited to the following embodiments, and various modifications and changes can be made without departing from the spirit of the present invention.

  FIG. 1 is a perspective view showing an external appearance of a vacuum cleaner according to Embodiment 1 of the present invention. FIG. 2 is an external view of the main body of the vacuum cleaner according to Embodiment 1 of the present invention as viewed from the side. 3 is sectional drawing seen from the side surface direction of the main-body part of the vacuum cleaner which concerns on Embodiment 1 of this invention.

  As shown in FIG. 1, the vacuum cleaner 100 according to the first exemplary embodiment of the present invention includes a main body 101, a dust collection unit 102, an extension pipe 103, and a suction tool 104.

  The main body 101 is provided with a handle 101b for handling the electric vacuum cleaner 100. The main body 101 is provided with an operation unit 101c including a switch (not shown) for driving the electric blower 51 shown in FIG. 3 when the electric vacuum cleaner 100 is operated.

  The extension pipe 103 is used to connect the main body 101 and the suction tool 104 so as to allow ventilation, and is connected to the main body pipe portion 101a of the main body 101 shown in FIG. The suction tool 104 is connected to the end of the extension pipe 103 opposite to the end connected to the main body pipe 101a. Although not shown, the main body 101 and the suction tool 104 can be connected without using the extension tube 103.

  The suction tool 104 sucks in air containing dust from a surface to be cleaned such as a floor. The suction tool 104 is provided with an opening (not shown) on a surface facing the surface to be cleaned such as a floor. This opening is an opening for sucking in air containing dust.

As shown in FIG. 3, the dust collection unit 102 has a dust collection chamber 102a. The dust collection chamber 102a is for containing dust. A separation unit 114 is provided in the dust collection chamber 102a. The separation unit 114 is for turning the air containing dust to separate the dust. The separated dust is accommodated in the dust collection chamber 102a. The vacuum cleaner 100 is a cyclone type vacuum cleaner.
In addition, although the vacuum cleaner 100 concerning Embodiment 1 of this invention is demonstrated as a cyclone type vacuum cleaner, a dust collection system is not limited to this, It demonstrates as an example of a dust collection system. It is also possible to use a dust bag like a paper pack type.

  Inside the main body 101, a secondary battery 111 that supplies electric power for driving the electric blower 51 is accommodated. The vacuum cleaner 100 is a cordless vacuum cleaner that drives the electric blower 51 with the secondary battery 111.

In addition, although the vacuum cleaner 100 concerning Embodiment 1 of this invention is demonstrated as a cordless type vacuum cleaner, it is not limited to this, An example of a handy type, a stick type, and an upright type The power may be supplied from a commercial power source through a cord connection instead of from a secondary battery.

In addition, an electric blower 51 in which an electric motor 52 is incorporated is accommodated in the main body 101 as shown in FIG. The electric blower 51 is housed in the main body 101 in a state of being housed and held in a housing case assembly 10 shown in FIG.

  The electric blower 51 generates suction air for the vacuum cleaner 100 to suck in air containing dust. The air inlet 51a of the electric blower 51 is disposed so as to be able to ventilate the dust collecting portion 102.

  In the operation of the electric vacuum cleaner 100, when a switch (not shown) for driving the electric blower 51 of the operation unit 101c is turned on, electric power is supplied from the secondary battery 111 to the electric blower 51, and the electric blower 51 starts driving.

  In order to supply electric power from the secondary battery 111 to the electric blower 51, the first wiring board 3 and the second wiring board 4 are accommodated in the main body 101 as shown in FIG. The first wiring board 3 and the second wiring board 4 are housed in the main body 101 in a state of being housed and held in the housing case assembly 10 shown in FIG.

  The first wiring board 3 includes an inverter circuit drive signal generation unit (not shown). The second wiring board 4 includes an inverter unit (not shown) that converts the DC voltage of the secondary battery 111 into an AC voltage that drives the electric blower 51.

  The first wiring board 3 and the second wiring board 4 are connected so that signals can communicate with each other via a connection line (not shown). The above-described operation will be described in detail. For driving the electric blower 51 of the operation unit 101c. When a switch (not shown) is turned on, the inverter circuit drive signal generation unit (not shown) generates a drive signal for the inverter circuit, and the drive signal is transmitted to the inverter unit of the second circuit board 4 and the first circuit board 3 The inverter part of the second wiring board 4 converts the DC voltage of the secondary battery 111 into an AC voltage for driving the electric blower 51, and the electric blower 51 supplied with electric power starts driving.

  When the electric blower 51 supplied with electric power starts to be driven, suction of air containing dust from the opening of the suction tool 104 is started by the suction air generated by the electric blower 51.

  Air containing dust sucked from the opening of the suction tool 104 passes through a ventilation path (not shown) of the extension pipe 103, passes through a suction air path 112 in the main body pipe portion 101 a of the main body 101, and swirls the dust collection portion 102. Sent to the unit 113.

  The air containing dust is swirled by the swivel unit 113 and centrifuged, and the separation unit 114 separates the dust and air. The separated dust is accommodated in the dust collecting chamber 102a, and the separated air is sucked into the electric blower 51 from the intake port 51a of the electric blower 51 and sent out of the electric blower 51 from an exhaust port (not shown) of the electric blower 51. Then, it is discharged out of the main body 101 from the main body exhaust port 101d provided in the main body 101 shown in FIG.

(Container case assembly configuration and wiring board shape)
Next, the configuration of the housing case assembly 10 housed in the main body 101 of the electric vacuum cleaner 100 according to the first embodiment of the present invention with reference to FIGS. 4 to 14 and the first housing housed in the housing case assembly 10. A description will be given including the shape of the wiring board 3.
Note that in each drawing, the same reference numerals are given to the same portions or corresponding portions, and a part of the description may be omitted.
The present invention is not limited to the following embodiments, and various modifications and changes can be made without departing from the spirit of the present invention.

  4 is a perspective view of a housing case assembly in which the electric blower, the first wiring board, and the second wiring board of the electric vacuum cleaner according to Embodiment 1 of the present invention are incorporated and held, and FIG. 5 is the present invention. The perspective view which shows the state which decomposed | disassembled the housing | casing case assembly of the vacuum cleaner which concerns on Embodiment 1 into the 1st case, the 2nd case, the 1st wiring board, the 2nd wiring board, and the electric blower, FIG. 6 is a perspective view showing a state where the electric blower, the first wiring board, and the second wiring board are held in the first case of the electric vacuum cleaner according to Embodiment 1 of the present invention, and FIG. The perspective view which looked at the 1st wiring board from the 1st surface (surface) side, Drawing 7 (b) is the perspective view which looked at the 2nd wiring board from the 1st surface (surface) side, and Drawing 8 (a) is The top view which looked at the 1st wiring board from the 2nd surface (back surface) side, FIG.8 (b) is the principal part enlarged view of the A section (projection shape) shown to (a), FIG. FIG. 10A is a schematic plan view showing the dimensional relationship of the first wiring board, and FIG. 10A shows the first case in which the electric blower and wiring board of the electric vacuum cleaner according to Embodiment 1 of the present invention are incorporated and held. FIG. 10 (b) is an enlarged view of the main part of B part shown in FIG. 10 (a), and FIG. 11 (a) is related to Embodiment 1 of the present invention. The top view which looked at the 1st case of the vacuum cleaner from the surface direction holding a wiring board and an electric blower, FIG.11 (b) is the principal part enlarged view of the D section shown to (a), FIG.12 (a) is The side view of the 1st case seen from the arrow E direction shown to Fig.11 (a), FIG.12 (b) is the principal part enlarged view of F part shown to (a), FIG. 13 is the cutting line CC shown in FIG. FIG. 14 is a cross-sectional view of the main part cut at, and FIG. 14 shows the second case of the vacuum cleaner according to Embodiment 1 of the present invention, which holds the wiring board and the electric blower. It is a plan view seen from the plane direction.

  As shown in FIG. 4, the storage case assembly 10 includes a first case 1 and a second case 2. The first case 1 is formed by injection molding a resin material. Similarly to the first case 1, the second case 2 is formed by injection molding of a resin material. The resin material used is, for example, ABS (acrylonitrile butadiene styrene) resin having flame retardancy.

  FIG. 5 shows a state in which the housing case assembly 10 is disassembled into a first case 1 and a second case 2 for convenience. As shown in FIG. 5, the electric blower 51, the first wiring board 3, and the second wiring board 4 are housed and held in the housing case assembly 10.

As shown in FIGS. 10 and 11, the first case 1 is provided with a claw shape 1 a at the center in the longitudinal direction. The claw shape 1a is provided on both sides. As shown in FIG. 14, the second case 2 is provided with a claw hook 2 a at the center in the longitudinal direction. The claw hooks 2a are provided on both sides.

  As shown in FIGS. 6 and 11, after the electric blower 51, the first wiring board 3 and the second wiring board 4 are placed on the first case 1, the second case 2 is covered, When the claw-shaped portion 1a of the second case 2 is hung on the claw shape 1a of the first case 1, the electric blower 51, the first wiring board 3, and the second case 2 are caused by the first case 1 and the second case 2. The wiring board 4 is fixed and held so as to sandwich the outer periphery of the wiring board 4 to be in the state of the housing case assembly 10. The storage case assembly 10 is cylindrical.

  A packing 53 and a holding member 54 are attached to the electric blower 51. The packing 53 is made of, for example, EPDM (ethylene propylene diene rubber). The holding member 54 is made of, for example, CR (chloroprene rubber).

  The packing 53 suppresses vibration of the electric blower 51 attached in the vicinity of the intake port 51a of the electric blower 51. Further, the air discharged from an exhaust port (not shown) of the electric blower 51 is sealed so as not to return to the intake port 51a of the electric blower 51.

  The holding member 54 is attached around the trunk portion of the electric blower 51, and suppresses and holds the movement of the electric blower 51.

  The electric blower 51 is attached to the first case 1 as shown in FIGS. 6 and 11 with the packing 53 and the holding member 54 attached. The electric blower 51 includes a first electric blower holding portion 1b of the first case 1 shown in FIG. 11 and a first electric blower holding portion 2b of the second case 2 shown in FIG. Is held so as to sandwich the area around the torso, and movement is suppressed.

Further, the electric blower 51 is held so as to be sandwiched between the first case 1 and the second case 2 via the packing 53, and the second electric motor of the first case 1 formed smaller than the outer periphery of the packing 53. The movement is also suppressed by the blower holding unit 1 c and the second electric blower holding unit 2 c of the second case 2.

  The second wiring board 4 is integrally attached to the electric blower 51. By attaching the electric blower 51 to the first case 1, the second wiring board 4 is also accommodated in the first case 1. As shown in FIG. 7B, the outer shape of the second wiring board 4 has a shape in which a part of a circle is notched. The surface visible in FIG. 7B is referred to as a first surface 4a of the second wiring board 4 for convenience. Note that the first surface may be expressed as a surface.

  On the first surface (front surface) 4a of the second wiring board 4, an electrical / electronic component group 4c such as a connection connector or an electrolytic capacitor is attached. The second wiring board 4 is attached to the electric blower 51 with an attachment member (not shown) so that the back surface, which is the second surface (not shown), faces the electric blower 31.

The center of the outer circle of the second wiring board 4 (not shown) is attached to the electric blower 51 so that the axial center that is the center in the longitudinal direction of the rotation axis of the electric motor 52 of the electric blower 51 overlaps. In other words, it is attached to the electric blower 51 so that the axial center of the electric motor 52 and the center point of the outer circle of the second wiring board 4 are orthogonal to each other. In other words, the outer shape of the electric blower 51 and the outer shape of the portion of the second wiring board 4 that is not cut out are substantially concentric with the axis of the electric motor 52 of the electric blower 51 as the center.

  The first wiring board 3 is directly attached to the first case 1. As shown in FIGS. 8A and 9, the first wiring board 3 has an arc shape having a circumference of half or more. The center point P of the virtual circle of the first wiring board 3 of the first wiring board 3 is also the rotational axis of the electric motor 52 of the electric blower 51 when the first wiring board 3 is attached to the first case 1. Is perpendicular to the longitudinal axis.

That is, the outer shape of the circumferential portion of the first wiring board 3 is centered on the axis of the electric motor 52 of the electric blower 51, and the outer shape of the electric blower 51 and the not-cut portion of the second wiring board 4. It is almost a concentric circle.

  The electric blower 51 has the largest size among the components accommodated in the main body, and the largest outer shape of the electric blower 51 is the circumference, so that the first wiring board 3 and the second wiring board 4 can be formed. The area of the substrate is set so as to be almost the same as a circle and to be the same as or slightly smaller than the outer periphery of the electric blower 51, and arranged so as to be orthogonal to the longitudinal axis of the rotating shaft of the electric motor 52 of the electric blower 51. It is possible to prevent the main body from becoming large.

  For the sake of convenience, the surface of the first wiring board 3 shown in FIG. 7A is defined as the first surface (front surface) 3a of the first wiring substrate 3, and the first surface (front surface) 4a of the second wiring substrate 4. It is attached so as to face. On the first surface (front surface) 3a of the first wiring board 3, an electrical / electronic component group 3c such as a connector, a resistor, and a capacitor is attached.

  A connection connector (not shown) of a connection line (not shown) that connects the first wiring board 3 and the second wiring board 4 is the first surface (front surface) 3a of the first wiring board 3 and the second wiring board 4 respectively. The first wiring board 3 and the second wiring board 4 are close to each other because the length of the connection line can be shortened to make it difficult for noise to travel to the connection line. Thus, it is desirable to mount the first wiring board 3 so as to face the first surface (front surface) 3 a of the first wiring board 3 and the first surface (front surface) 4 a of the second wiring board 4.

The center point of the outer circle of the second wiring board 4 and the center point P of the virtual circle of the first wiring board 3 of the first wiring board 3 are both in the longitudinal direction of the rotating shaft of the electric motor 52 of the electric blower 51. In other words, the second wiring board 4 and the first wiring board 3 are mounted in parallel because they are mounted so as to be orthogonal to the axis.

  The first wiring substrate 3 and the second wiring substrate 4 are opposed to the first surface (front surface) 3a of the first wiring substrate 3 and the first surface (front surface) 4a of the second wiring substrate 4 at a short distance. In order to mount in such a manner, it is desirable to mount in parallel in consideration of the ease of mounting work.

By mounting in parallel, the direction of insertion into the first case 1 is the same, so the mounting work is easy, and the distance between the surfaces of the first wiring board 3 and the second wiring board 4 is constant. Therefore, the insulation distance can be reliably maintained.

  In the first embodiment of the present invention, a first wiring board 3 including an inverter circuit drive signal generation unit (not shown) and an inverter (not shown) that converts a DC voltage of the secondary battery 111 into an AC voltage that drives the electric blower 51. However, it is also possible to provide an inverter circuit drive signal generation unit and an inverter unit on one wiring substrate.

Considering noise from the connection line, it may be better to configure it with a single board, but when a single wiring board is used, the area becomes larger by mounting the necessary electrical and electronic parts, and the increased wiring The housing case assembly for housing the substrate and the main body for housing the substrate also need to be enlarged, which causes problems such as an increase in cost and poor handling due to the increase in size. In order to reduce the size and weight, it is desirable to divide the wiring board into two pieces and arrange them at a close distance.

  The shape of the first wiring board 3 will be described in more detail with reference to FIGS. 8 and 9 as viewed from the second surface (back surface) 3b of the first wiring board 3. As described above, as shown in FIGS. 9 has a circular arc shape having a circumference of a half or more, and the position of the first wiring board 3 shown in FIG. 9 is lowered from the horizontal center line X of the virtual circle in the mounting direction to the first case 1. Projection shapes 31 are provided on both sides.

  In FIG. 8B in which the portion A of FIG. 8A is enlarged, the projection shape 31 is an intersection of the horizontal chord of the first wiring board 3 and the extension line of the arc of the first wiring board 3. The angle of the side 31a is θ1 with respect to the vertical line Y1 that is perpendicular to the mounting direction of the first wiring board 3 that passes through. Further, the angle of the side 31b with respect to the vertical line Y1 is θ2. Then, the protrusion dimension of the protrusion shape 31 is W1 from the end point of the arc.

  θ1 is preferably an acute angle in consideration of ease of attachment to the first case 1 described later, and is preferably about 30 degrees. In addition, θ2 is preferably about 90 to 110 degrees in consideration of difficulty of detachment from the first case 1 described later. Then, W1 is preferably about 1 mm to 3 mm in consideration of ease of attachment to the first case 1 described later and difficulty in detachment.

  As shown in FIGS. 10 and 11, the first case 1 is provided with a rib 11a, a rib 11b, a rib 12a, and a rib 12b that serve as a guide when the first wiring board 3 is attached and a holding structure after the attachment. ing. A wiring board guide 11 is constituted by 11a and ribs 11b. Moreover, the wiring board guide 12 is comprised by the rib 12a and the rib 12b.

  Referring to FIG. 10B in which the portion B of FIG. 10A is enlarged, the rib 11a and the rib 11b of the wiring board guide 11 are respectively located on both sides of the first wiring board 3 from the inside of the first case 1. And is configured to hold both the first surface (front surface) 3a and the second surface (back surface) 3b. Although not shown, the ribs 12a and ribs 12b of the wiring board guide 12 are similarly configured to hold both the first surface (front surface) 3a and the second surface (back surface) 3b of the first wiring substrate 3. Yes.

  The overlap margin between the first surface (front surface) 3a and the second surface (back surface) 3b of the first wiring board 3 and each of the rib 11a, rib 11b, rib 12a, and rib 12b is about 1 mm to 3 mm. The ineffective area of the wiring board is not increased by configuring the overlap margin to be small.

  Referring to FIG. 11B in which the portion D of FIG. 11A is enlarged, a recess 11c is provided between the rib 11a and the rib 11b of the wiring board guide 11, and the first wiring is provided in the recess 11c. The substrate 3 enters.

When the first case 1 is viewed from the direction of arrow E shown in FIG. 11 (a), a protruding shape accommodating portion 11d is provided as shown in FIG. 11 (a). The position where the protrusion-shaped accommodating portion 11d is provided is the side surface of the first case 1 at the position where the concave portion 11c is provided.
A protrusion-shaped accommodation portion 11 d shown in FIG. 12B in which the F portion in FIG. 12A is enlarged is an opening provided on the side surface of the first case 1.

  When the first wiring board 3 is attached to the first case 1, as shown in FIG. 13, the protrusion of the first wiring board 3 is projected into the protrusion-shaped accommodation portion 11 d that is an opening provided on the side surface of the first case 1. The shape 31 is accommodated.

  The protrusion dimension on one side of the protrusion shape 31 is W1 in the horizontal direction from the vertical center line Y2 of the virtual circle of the first wiring board 3 and is perpendicular to the horizontal center line X same as the first wiring board 3 It is larger than the radius R2 of the inner diameter of the first case 1 from the intersection of the center lines Y2.

Therefore, normally, it is difficult for the protrusion shape 31 to enter the protrusion shape accommodating portion 11d. However, since the first case 1 is formed of resin, the first case 1 is flexible, and is above the protrusion shape engaging portion 11e. The part 11f of the deformable portion can spread outward and allow the projection shape 31 to pass therethrough, and after the projection shape 31 has passed, the deformable portion 11f returns to its original state, so that the projection shape engaging portion 11e now interferes with the side 31b. To prevent it from coming off.

  As shown in FIG. 9, the dimension of the arc of the first wiring board 3 is such that the horizontal center line X of the virtual circle of the first wiring board 3 and the vertical center line of the virtual circle of the first wiring board 3. The radius R1 from the intersection of Y2. The maximum width W3 of the first wiring board 3 corresponds to twice the radius R1, that is, the diameter of the first wiring board 3.

  The protruding dimension on one side of the protruding shape 31 is W1 in the horizontal direction from the vertical center line Y2 of the virtual circle of the first wiring board 3. W1 has a relationship of W1> R1 larger than R1. The width dimension on both sides of the protrusion shape 31 is W2 which is twice W1. W2 has a relationship of W2 (= W1 × 2)> W3 (= R1 × 2), which is larger than W3.

  From the above-mentioned relationship, the diameter of the first wiring board 3 is R1 × 2, the dimension from the end to the end of the protruding shape 31 at both ends of the outer periphery of the first wiring board 3 is W1 × 2, the first case 1 has an inner diameter of R2 × 2, W1 × 2> R2 × 2> R1 × 2, and the first wiring board 3 can be accommodated in the first case 1, and the protruding shape 31 is the first case. The structure does not easily come off from 1.

  After the electric blower 51, the first wiring board 3, and the second wiring board 4 are placed on the first case 1, the electric blower 51, the first wiring board 3, and the second wiring are placed by the second case 2. Although it covers so that the board | substrate 4 may be inserted | pinched, as shown in FIG. 14, the 1st electric blower holding | maintenance part 2b is provided in the 2nd case 2, and the 1st electric blower of the 1st case 1 is provided. It hold | maintains so that a movement may be suppressed by hold | maintaining with the holding | maintenance part 1b so that the trunk | drum part vicinity of the electric blower 51 may be pinched | interposed.

Further, the second electric blower holding part 2c provided in the second case 2 shown in FIG. 14 and the second electric blower holding part 1c of the first case 1 shown in FIG. It is held so that the movement is suppressed.

Then, as shown in FIG. 14, the second case 2 is provided with a wiring board guide 21 including ribs 21a and ribs 21b. The wiring board guide 21 is fixed by covering the first case 1 with the second case 2, and holds the end of the first wiring board 3 when the housing case assembly 10 is reached. Is.

  The G portion of the first wiring board 3 shown in FIG. 9 is protruded from the inside of the second case 2 to both sides of the first wiring board 3 by the ribs 21a and 21b of the wiring board guide 21, respectively. The first wiring board 3 is formed so as to be held from both the first surface (front surface) 3a and the second surface (back surface) 3b.

  The overlap margin between the first surface (front surface) 3a and the second surface (back surface) 3b of the first wiring board 3 and the rib 21a and the rib 21b is about 1 mm to 3 mm. Thus, the ineffective area of the wiring board is not increased.

  As described above, the first case 1 and the second case 2 are fixed and held so as to sandwich the outer periphery of the electric blower 51, the first wiring board 3, and the second wiring board 4. The wiring board 3 is configured such that the protruding shape 3 is accommodated in the protruding shape accommodating portion 11d provided in the first case 1, so that the rib 11a and the rib 11b of the wiring board guide 11 and the rib 12a and the rib of the wiring board guide 12 are provided. 12b holds both the first surface (front surface) 3a and the second surface (back surface) 3b of the first wiring board 3, and the rib 21a and the rib 21b of the wiring board guide 21 provided in the second case 2 are provided. Since both the first surface (front surface) 3a and the second surface (back surface) 3b of the first wiring board 3 are held, the first wiring board 3 is accommodated without using a mounting member such as a screw. Can be accommodated in case assembly 10 Because, it is possible to suppress an increase in weight due to the mounting member, the operator friendly vacuum cleaner 100 is lightweight can be provided.

In addition, since no attachment member such as a screw is used to attach the first wiring board 3, it is not necessary to make a screw hole on the surface of the first wiring board 3 to which the electric and electronic parts are to be attached. Does not increase the area.

Further, when the first wiring board 3 is attached to the first case 1, the angle of the side 31b of the protrusion 3 is set to θ2 with respect to the vertical line Y1, and θ2 is set to about 90 to 110 degrees. Since the protrusion shape engaging portion 11e interferes with the side 31b of the protrusion shape 3 and is prevented from coming off and is held at a predetermined position, the first wiring board 3 is attached when the second case 2 is attached. Work can proceed smoothly without worrying about floating or the like.

In the first embodiment of the present invention, the second wiring board 4 is attached to the electric blower 51 and then housed in the first case 1 and the second case 2 that are housing case assemblies. Similarly to the first wiring board 3, the second wiring board 4 may be attached to the first case 1 alone without being integrated with the electric blower 51. By doing so, an attachment member for attaching the second wiring board 4 to the electric blower 51 becomes unnecessary, and further cost reduction and weight reduction can be achieved.

  P The center point of the virtual circle of the first wiring board 3, X The horizontal center line of the virtual circle of the first wiring board 3, Y1 The vertical line in the mounting direction of the first wiring board 3, Y2 First wiring Vertical center line of the virtual circle of the substrate 3, 1 first case, 1a claw shape, 1b first electric blower holding part, 1c second electric blower holding part, 2 second case, 2a claw hanging part 2b 1st electric blower holding | maintenance part, 2c 2nd electric blower holding | maintenance part, 3 1st wiring board, 3a 1st surface (front surface) of 1st wiring board 3, 3b 1st of 1st wiring board 3 2 side (back side), 3c electric and electronic component group, 3d electric and electronic component group, 4 second wiring board, 4a first side (front surface) of second wiring board 4, 4c electric and electronic component group, 10 housing case set Solid, 11 wiring board guide, 11a rib, 11b rib, 11c recess, 1 d Projection shape accommodating part, 11e Projection shape engaging part, 11f Deformable part, 12 Wiring board guide, 12a rib, 12b rib, 21 Wiring board guide, 21a rib, 21b rib, 31 Projection shape, 31a side, 31b side, 51 Electric blower, 51a Intake port, 52 Electric motor, 53 Packing, 54 Holding member, 100 Vacuum cleaner, 101 Main body, 101a Main body tube portion, 101b Handle, 101c Operation portion, 101d Main body exhaust port, 102 Dust collection portion, 102a Dust collection Chamber, 103 Extension pipe, 104 Suction tool, 111 Secondary battery, 112 Suction air passage, 113 Swivel part, 114 Separation part.

Claims (7)

A wiring board on which various electric elements are mounted;
An electric blower,
A case for holding the wiring board and the electric blower,
The case consists of a first case and a second case,
A vacuum cleaner that holds the outer circumference of the wiring board and the outer circumference of the electric blower between the first case and the second case. A plurality of protrusion shapes are provided on the outer periphery of the wiring board,
The first case includes the protrusion-shaped accommodation portion,
The vacuum cleaner according to claim 1, wherein the second case includes a holding portion that holds the wiring board.   The electric vacuum cleaner according to claim 2, wherein the holding portion is formed so as to protrude from an inner periphery of the second case to both sides of the wiring board. 4. The wiring board according to claim 1, wherein the wiring board is arranged so that a longitudinal direction of a rotating shaft of the electric blower is orthogonal to a surface of the wiring board on which the electric element is mounted. 5. Electric vacuum cleaner. A plurality of the wiring boards;
The plurality of wiring boards are at least two wiring boards, and the first wiring board and the second wiring board are held by the first case and the second case. An electric vacuum cleaner given in any 1 paragraph. A plurality of the wiring boards;
The plurality of wiring boards are at least two wiring boards, the first wiring board is held by the first case and the second case, and the second wiring board is attached to the electric blower, The vacuum cleaner according to any one of claims 1 to 4, wherein the electric vacuum blower is integrally held with the first case and the second case.   The vacuum cleaner according to any one of claims 5 and 6, wherein the first wiring board and the second wiring board are arranged so that surfaces thereof are parallel to each other.

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