JP6685058B2 - Vacuum cleaner - Google Patents

Description

  The present embodiment relates to a vacuum cleaner.

  There is a vacuum cleaner having a structure in which hot air generated by heating the sucked air is applied to the surface of the object to be cleaned while sucking dust from the surface of the object to be cleaned. For example, Patent Document 1 describes a structure in which sucked air is heated and circulated on the surface of the object to be cleaned.

JP, 2016-43239, A

  Conventionally, various display mechanisms have been proposed in which the amount of dust to be sucked is known, but it has been desired to be able to easily grasp the amount of dust to be sucked. This embodiment aims at facilitating the grasp of the amount of dust to be sucked.

According to one aspect of the present embodiment, a cleaner body having an electric blower, a head communicating with the cleaner body , a dust cup detachable on the front side of the cleaner body , and the dust cup from the head. A detection unit that is provided in the air passage up to, detects a dust passing through the air passage, and a light emission unit that is provided in the cleaner body and whose emission is controlled based on the detection result of the detection unit; A cleaner is provided, wherein the light emitting unit is provided on a rear side of the dust cup and at a position facing the dust cup, and the dust cup transmits the light emitted from the light emitting unit. It

  According to the present embodiment, it is possible to provide a vacuum cleaner that facilitates grasping the amount of dust that is sucked.

The perspective view which shows the upright state of the vacuum cleaner which concerns on embodiment. Sectional drawing of the vacuum cleaner which concerns on embodiment. The perspective view of the nonwoven fabric filter with which the vacuum cleaner which concerns on embodiment is equipped. It is explanatory drawing which shows a mode that warm air is blown out from an exhaust port during operation | movement of the vacuum cleaner which concerns on embodiment, (a) storage state, (b) 1st use state, (c) 2nd use. Status. The exploded view of the suction head with which the vacuum cleaner concerning an embodiment is provided. Sectional drawing of the suction head shown by FIG. FIG. 6 is a top view of a hitting head included in the suction head shown in FIG. 5. The perspective view which shows the upright state of the vacuum cleaner which concerns on embodiment. The side view which shows the use condition of the vacuum cleaner which concerns on embodiment. Sectional drawing of the suction head with which the vacuum cleaner which concerns on embodiment is equipped. The exploded view of the suction head with which the vacuum cleaner concerning an embodiment is provided. Sectional drawing of the vacuum cleaner which concerns on embodiment. It is explanatory drawing of the intake path for motor overheating prevention with which the vacuum cleaner which concerns on embodiment is equipped, (a) The perspective view of the whole, (b) The sectional view of the principal part, (c) The perspective view of the principal part.

  Next, an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the plane dimension, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, the specific thickness and dimensions should be determined in consideration of the following description. Further, it is needless to say that the drawings include portions having different dimensional relationships and ratios.

  Further, the embodiments described below exemplify devices and methods for embodying the technical idea of the present invention, and the embodiments of the present invention include materials, shapes, structures, and The layout is not specified as below. The embodiment of the present invention can be modified in various ways within the scope of the claims.

[Appearance of vacuum cleaner]
FIG. 1 is a perspective view showing an upright state (state when stored) of the vacuum cleaner 1 according to the embodiment. The vacuum cleaner 1 is a relatively small and lightweight electric vacuum cleaner (for example, a futon cleaner) called a handy cleaner. As shown in FIG. 1, the main body 10 is formed in a substantially cylindrical shape. A suction head 30 having a swinging mechanism is rotatably connected to one end of the main body 10, and a U-shaped handle portion 50 is integrally formed on the other end of the main body 10. When cleaning an object to be cleaned such as a futon, the user of the cleaner 1 holds the handle portion 50, tilts the main body 10 at an arbitrary angle, and moves the suction head 30 in the front-rear direction and the left-right direction. Hereinafter, the “front-rear direction”, the “left-right direction”, and the “up-down direction” will be considered based on the user of the cleaner 1 unless otherwise specified.

[Internal structure of vacuum cleaner]
FIG. 2 is a cross-sectional view of the vacuum cleaner 1 according to the embodiment. Hereinafter, the internal configuration of the vacuum cleaner 1 according to the embodiment will be described with reference to FIG.

  The main body 10 includes a substantially cylindrical main body housing 10a. A U-shaped handle portion 50 is integrally formed on the upper portion of the main body housing 10a. An intake port 11b is formed in a substantially central portion of the lower end of the main body housing 10a, and a cylindrical duct cover 11 extends downward.

  A dust sensor 11 a for detecting dust is provided inside the duct cover 11. The dust sensor 11a includes a light emitting element and a light receiving element, and the light emitted from the light emitting element traverses the duct cover 11 and is received by the light receiving element on the opposite side. The passage of dust can be detected by determining the presence or absence of light reception. The position of the dust sensor 11a is not limited to the inside of the duct cover 11, and may be any place where dust passes.

  The motor chamber 15c contains a fan motor 15 which is an electric blower. The fan motor 15 includes a suction fan 15a and a suction motor 15b. When the suction motor 15b drives the suction fan 15a, a negative pressure is generated inside the cleaner 1 to suck dust. The fan motor 15 is driven by PWM control, but other control methods may be adopted depending on the type of the fan motor 15.

  An annular non-woven fabric filter 17 is provided above the fan motor 15 via a motor rubber retainer 16. The upper part of the non-woven fabric filter 17 is closed by a filter cap 18, and a discharge flow path 19 is provided from the side of the non-woven fabric filter 17 through the back side of the main body housing 10a to the discharge port 23 at the lower end. The control board 12 is disposed in front of the discharge flow path 19 with a partition wall W1 interposed therebetween. The control board 12 is a control unit that controls each unit of the vacuum cleaner 1. The space in which the control board 12 is housed is separated from the discharge flow path 19 by the partition wall W1, and is separated from the motor chamber 15c by the partition wall W2 inside the partition wall W1. That is, the air 70 is prevented from entering the control board 12 side from the discharge flow path 19 and the motor chamber 15c.

  The opening of the main body housing 10 a formed below the fan motor 15 is closed by a conical dust collecting filter 13. The dust collecting filter 13 is a resin frame in which a mesh filter is insert-molded, and separates air 70 and dust (the mesh filter is not described). The dust collection filter 13 may be a HEPA (High Efficiency Particulate Air) filter.

  A transparent dust cup 22 is mounted in front of the dust collecting filter 13. Dust and the like sucked from the suction port 33 is collected in the dust cup 22. By pressing the release button B (see FIG. 1) provided on the side surface of the dust cup 22, the dust cup 22 can be removed from the main body 10 and the accumulated dust can be discarded.

  The suction head 30 includes a head housing 30a having an upper and lower half structure. A rotary shaft A is provided along the longitudinal direction of the head housing 30a, and is supported at one end of the duct cover 11 so as to be swingable within a certain angle range around the rotary shaft A. A suction port 33 is provided on the lower surface of the head housing 30a, and a striking mechanism including a striking head 31, a striking motor 32, and the like is provided in front of the suction port 33.

  The suction port 33 is provided substantially at the center of the lower surface of the suction head 30 for sucking dust from the surface to be cleaned. The structure of the suction port 33 may be a shape having only an opening as conventionally adopted, but may be a structure having a rotating member such as a brush inside the suction port 33. By having the rotating member, it is possible to scrape out dust on a surface to be cleaned, particularly a long-haired object such as carpet, and to inhale more dust.

  On a front surface of the handle portion 50, an operation button 51 operated by a user with a fingertip and a lamp 52 showing a result of the operation are provided. When the operation button 51 is pressed, the suction motor 15b is activated and the suction fan 15a rotates. When the suction fan 15a rotates, dust is sucked into the dust cup 22 through the duct cover 11. Each time the operation button 51 is pressed, the rotation speed of the suction motor 15b changes, and the operation mode can be switched in three stages of "weak", "standard", and "turbo". Of course, a plurality of operation buttons 51 corresponding to each operation mode may be provided. By providing a convex portion or a concave portion on the lower side of the handle portion 50 so that the user's finger can be caught, it becomes possible to guide the position held by the user to a certain position, and it is possible to push the operation button 51. It will be easier.

  A power cord 53 is pulled out from the handle portion 50 and connected to an outlet. If a rechargeable battery pack is attached inside the main body housing 10a, it can be realized as a cordless cleaner using it as a power source.

[Hot air blowing mechanism]
As described above, according to the conventional vacuum cleaner, it is difficult for the user to grasp the place where the warm air is blown. Further, since the distance between the hot air outlet and the object to be cleaned is constant, it is difficult to properly adjust the surface temperature of the object to be cleaned.

  Therefore, the vacuum cleaner 1 according to the embodiment includes a warm air blowing mechanism that uses the waste heat of the suction motor 15b to generate warm air and blows it toward an object to be cleaned such as a futon. Specifically, a hot air outlet 23 is provided on the suction head 30 side of the main body 10. Since the warm air is blown out from the main body 10 side even though it is a swing head, it is easy for the user to sensuously grasp the place where the warm air hits and the temperature can be easily adjusted.

  Hereinafter, the flow of the air 70 in the cleaner 1 will be described with reference to FIG. First, the air 70 sucked from the suction port 33 of the suction head 30 flows into the dust cup 22 through the duct cover 11 and the suction port 11b of the main body 10, and the dust in the air 70 is collected by the dust collecting filter 13. Are removed. The air 70 from which dust has been removed flows into the motor chamber 15c, passes through the surface of the suction motor 15b, and is heated by the waste heat of the suction motor 15b. The warmed air 70 flows through the nonwoven fabric filter 17 provided on the downstream side of the suction motor 15b to the discharge flow path 19, and is blown from the discharge port 23 toward the object to be cleaned. Since the temperature of the air 70 blown out from the outlet 23 is about 40 to 50 ° C., it is possible to warm an object to be cleaned such as a futon and reduce the humidity.

  FIG. 3 is a perspective view of the nonwoven fabric filter 17 included in the vacuum cleaner according to the embodiment. As shown in FIG. 3, the non-woven fabric filter 17 is an annular pleat filter. Since the pleated filter is an accordion filter, it is possible to mount a filter having a large surface area in a small space. A disc-shaped plate portion is integrally provided on the upper portion 17c of the nonwoven fabric filter 17, and the upper portion 17c is closed. The air 70 flowing from the opening of the bottom portion 17a of the non-woven fabric filter 17 passes through the outer periphery 17b of the non-woven fabric filter 17 to remove fine dust, and then flows into the discharge passage 19. According to such a configuration, since the exhaust gas of the fan motor 15 can be purified by the non-woven cloth filter 17 having a finer mesh than the dust collecting filter 13, it is possible to blow clean air 70 to the object to be cleaned.

  4A and 4B are explanatory views showing how warm air is blown from the outlet 23 during operation of the vacuum cleaner 1 according to the embodiment, where FIG. 4A is a stored state and FIG. 4B is a first use state. , (C) show the second usage state. In the following description, the reference numeral 70 is also used for the warm air blown out from the discharge port 23.

  As shown in FIG. 4A, in the stored state (upright state), the angle formed by the main body 10 and the suction head 30 is approximately 90 °, and the warm air 70 is perpendicular to the object to be cleaned from the discharge port 23. Be sprayed on. The distance from the outlet 23 to the object to be cleaned is about the length of the duct cover 11. When the main body 10 is erected on the suction head 30, the center of gravity of the main body 10 is located within the projected area of the suction head 30.

  As shown in FIG. 4B, the first use state is a state in which the main body 10 is tilted backward from the stored state and the lock mechanism (described later) of the swing head is released. Here, the angle formed by the main body 10 and the suction head 30 is about 45 °, and the warm air 70 is blown from the discharge port 23 to the object to be cleaned at an angle of about 45 °. The user can operate the handle portion 50 to adjust the position where the warm air 70 hits while swinging his / her head at an appropriate angle. Since the discharge port 23 is formed behind the rotation axis A, the distance from the discharge port 23 to the object to be cleaned is shorter than that in the housed state of FIG. 4A. As a result, the surface temperature of the object to be cleaned can be increased and the humidity can be further reduced.

  As shown in FIG. 4C, the second use state is a state in which the main body 10 is tilted backward most deeply. In the second usage state, the angle formed by the main body 10 and the suction head 30 is approximately 10 °, and the hot air 70 is directly blown to the object to be cleaned from the discharge port 23 approaching the surface to be cleaned. As a result, the surface temperature of the object to be cleaned can be increased and the humidity can be further reduced. The swinging head may be restricted from rotating when the discharge port 23 swings the head up to the same height as the lower surface of the suction head 30.

  As described above, the cleaner 1 according to the embodiment is the cleaner 1 including the suction head 30 rotatably connected to the main body 10, and the main body 10 blows air 70 through the suction head 30. The exhaust port 23 includes a fan motor 15 that sucks the air inside, a heating unit that heats the air 70 that is sucked inside by the fan motor 15, and an exhaust port 23 that exhausts the air 70 heated by the heating unit to the outside. Is formed on the suction head 30 side of the main body 10. As a result, the warm air 70 is discharged from a position close to the user on the main body 10 side, so that the user can easily understand where the warm air 70 hits and can easily adjust the temperature.

  Further, the suction head 30 is connected to one end of the main body 10, and the handle portion 50 is formed on the other end of the main body 10. That is, since the discharge port 23 is formed on the side opposite to the handle portion 50, there is an effect that the warm air 70 does not directly hit the user.

  Further, the suction head 30 is connected to the main body 10 so as to be rotatable about a rotation axis A along the longitudinal direction of the suction head 30, and the discharge port 23 is located rearward of the rotation axis A. Has been formed. As a result, the user can easily visually recognize the discharge port 23, and thus, it is easier to understand the place where the warm air 70 hits and the temperature can be adjusted more easily.

  The heating unit is the surface of the suction motor 15b that constitutes the fan motor 15, and the air sucked into the main body 10 flows along at least a part of the surface of the suction motor 15b and is discharged to the discharge port 23. The flow path 19 is formed. As a result, the warm air 70 is generated by utilizing the waste heat of the motor, so that it is not necessary to separately provide a heating unit for generating the warm air 70, which is advantageous in terms of downsizing and cost reduction.

  Further, the main body 10 includes a dust collecting filter 13 upstream of the fan motor 15 and a non-woven fabric filter 17 finer than the dust collecting filter 13 downstream of the fan motor 15. This makes it possible to purify the exhaust gas of the fan motor 15 and blow clean air 70 to the object to be cleaned.

[Strike mechanism]
In the conventional vacuum cleaner, the main purpose was to suck the dust on the floor surface, but recently, the object to be cleaned has been sucked for the purpose of sucking the dust and mite dust attached to the bedding such as the futon. Various vacuum cleaners having a hitting mechanism for vibrating are proposed. Since dust and mite dung cause allergies, it is desired to increase the hitting power. Therefore, the cleaner 1 according to the embodiment employs the following striking mechanism in order to increase the striking force.

  FIG. 5 is an exploded view of the suction head 30 included in the vacuum cleaner 1 according to the embodiment. Here, only the main members constituting the hitting mechanism are shown. As shown in FIG. 5, the striking motor 32 to which the eccentric disc 39 is attached is housed in the motor case 40, and the motor case 40 and the striking head base 37 are directly connected by screws (not shown). Of course, a connection method other than screwing may be used. On the other hand, the elastic body (packing) 35 is fitted to the outside of the two support portions 35a protruding from the upper surface of the hitting head 31, and the groove portion formed on the outer periphery of the elastic body 35 is fitted to the two openings 35b of the head housing 30a. The support portion 35a and the hitting head base 37 are fixed so as to come into contact with each other by screws 38. As a result, the motor case 40, the beating head base 37, and the beating head 31 are elastically supported as a whole with respect to the head housing 30a.

  FIG. 6 is a sectional view of the suction head 30 shown in FIG. As shown in FIG. 6, a striking motor case 40 is arranged between two supporting portions 35a projecting from the upper surface of the striking head 31, and the weight of the striking motor 32 is supported at two places. Since the eccentric disc 39 is eccentrically attached to the rotation shaft of the hitting motor 32, when the hitting motor 32 is rotated, vibration according to the rotation speed can be generated. Vibration according to this rotation speed is transmitted to the hitting head 31 through the hitting head base 37, and the hitting head 31 is vibrated vertically. Since the lower surface of the hitting head 31 is provided with a plurality of protrusions, it is possible to effectively knock out dust and the like in the back of the object to be cleaned. In order to prevent a so-called chattering noise from being generated during vibration, each part may be provided with a member that absorbs vibration. A rubber or polyurethane material can be used as the vibration absorbing member.

  FIG. 7 is a top view of the hitting head 31 included in the suction head 30 shown in FIG. As shown in FIG. 7, the tapping head 31 has a bilaterally symmetric shape as seen from the top surface such that two futon beating patterns are joined together. The opening 31a is formed wider as it goes to the end, and many openings 31a are formed. The vicinity of the support portion 35a plays a role like a handle for hitting a futon and has a structure in which a large hitting force is obtained at the end of the hitting head 31.

  As described above, the cleaner 1 according to the embodiment is the cleaner 1 including the striking mechanism that vibrates the striking head 31 by the vibration of the motor with the eccentric disc. The striking head 31 has a wide end portion. is doing. As a result, large vibration is obtained toward the end portion, and the hitting force can be increased.

  Further, the tapping head 31 is formed with a plurality of openings 31a. As a result, since there are many portions where the hitting head 31 hits the object to be cleaned such as the futon and where the hitting head 31 does not hit, it is possible to increase the contact pressure and knock out a lot of dust from the inside of the object to be cleaned.

  Further, the supporting portions 35a of the striking head 31 are formed at two places, and the striking motor case 40 is arranged between the two supporting portions 35a. As a result, the weight of the hitting motor 32 is directly transmitted to the hitting head 31 through the two support portions 35a, so that the hitting force can be increased and the dust floating effect can be improved.

[Dust amount display mechanism]
In the conventional vacuum cleaner, the main purpose was to suck dust on the floor surface, but recently, various display mechanisms have been proposed in which the amount of sucked dust and the like can be known. In order to carry out cleaning efficiently, it is desirable to be able to easily grasp the dust amount. Therefore, the vacuum cleaner 1 according to the embodiment employs the following dust amount display mechanism in order to facilitate understanding of the dust amount.

  FIG. 8 is a perspective view showing the upright state of the vacuum cleaner 1 according to the embodiment. Here, for the purpose of explaining the dust amount display mechanism, the state in which members such as the dust cup 22 and the dust collecting filter 13 are removed is shown. As shown in FIG. 8, a dust amount display portion 21 that displays the dust amount is arranged on the back side of the dust cup 22. Since the dust collecting filter 13 having a conical shape is attached to the front of the dust amount displaying portion 21, two dust amount displaying portions 21 are provided at a lower position not facing the dust collecting filter 13.

  The dust amount display unit 21 includes a substrate on which the light emitting means is mounted and a light guide plate such as an acrylic plate that covers the substrate. The light emitting means are, for example, red and green light emitting diodes (LEDs). A plurality of colors can be created by mounting light emitting diodes that emit a plurality of colors and adjusting the brightness of each light emitting diode. Further, since the light of the light emitting diode is emitted from the entire light guide plate by being covered with the light guide plate having a light diffusion function, the entire transparent dust cup 22 emits light and the visibility is improved.

  A dust sensor 11a for detecting dust is provided inside the duct cover 11, and the emission color of the dust amount display unit 21 changes according to the dust amount detected by the dust sensor 11a. Such display control is realized by the control board 12. When the amount of dust is large, the control board 12 may cause the dust amount display portion 21 to emit red light, and may change to red, yellow, or green as the amount of dust decreases. As a result, when the same place is cleaned, it is possible to visually feel the degree of dust reduction.

  FIG. 9: is a side view which shows the use condition of the vacuum cleaner 1 which concerns on embodiment. As shown in FIG. 9, since the dust cup 22 is a large member provided in the main body 10 and is arranged on the front side which is easily seen by the user, the amount of dust can be easily grasped. In particular, when the main body 10 is folded down, the entire dust cup 22 can be seen clearly, which is effective when cleaning bedding such as a futon.

  Although the transparent dust cup 22 is illustrated here, the dust cup 22 may be a semi-transparent one such as a smoked one or an uneven one. If the dust cup 22 is made semitransparent, the light diffusion effect is increased, which is more effective.

  As described above, the vacuum cleaner 1 according to the embodiment is the vacuum cleaner 1 including the dust amount display mechanism for displaying the dust amount, in which the dust cup 22 is transparent or translucent, and the dust cup 22 is provided on the back side of the dust cup 22. A dust amount display section 21 that displays the dust amount is arranged. As a result, the entire dust cup 22 can be made to emit light in a color corresponding to the amount of dust, so that the amount of dust can be easily grasped. In addition, there is an effect that it is possible to easily grasp the amount of dust accumulated in the dust cup 22.

[Locking mechanism of the swing head]
FIG. 10 is a sectional view of the suction head 30 included in the vacuum cleaner 1 according to the embodiment, and FIG. 11 is an exploded view thereof. Hereinafter, the lock mechanism of the swing head included in the cleaner 1 according to the embodiment will be described with reference to FIGS. 10 and 11.

  As shown in FIG. 10 and FIG. 11, the rotation axis A is provided along the longitudinal direction of the head housing 30a, and the main body 10 and the suction head 30 are swung in an angle range of approximately 10 ° to 90 °. It is possible. Specifically, a plate-like protrusion 43 extending outward from the shaft 42 of the duct cover 11 is provided, and a recess is formed at the tip of the protrusion 43. A stopper 44 having elasticity is provided on the head housing 30a. Only when the main body 10 stands upright with respect to the suction head 30 (only when the angle formed by the main body 10 and the suction head 30 becomes approximately 90 °), the protrusion 43 and the stopper 44 face each other, and the stopper 44 does not bend. And fit into the recess of the protruding portion 43. Rotation is restricted in the angle range larger than 90 °. With such a configuration, the vacuum cleaner 1 can be self-supported in a stable state while the suction head 30 is installed on the floor surface.

  As described above, the vacuum cleaner 1 according to the embodiment is the vacuum cleaner 1 including the swinging head lock mechanism, and is locked only when the main body 10 stands upright with respect to the suction head 30. . Therefore, it is possible to swing in a certain angle range except when the upright position is set, and it is possible to provide the convenient cleaner 1.

[Motor overheat prevention mechanism]
By the way, if the suction force of the vacuum cleaner 1 is too strong, the dust collection filter 13 may be clogged, and the temperature of the fan motor 15 may rise excessively. Therefore, when a thermistor is attached to the fan motor 15 and it is detected that the temperature reaches a certain temperature or higher, the fan motor 15 is automatically controlled to operate at "weak" even when operating in "standard" or "turbo". Is desirable.

  However, when controlled in this way, the rotation speed of the fan motor 15 decreases, and the suction force decreases. Therefore, in the vacuum cleaner 1 according to the embodiment, in order to prevent the temperature of the fan motor 15 from rising too much, the following motor overheat prevention mechanism is adopted.

  FIG. 12 is a cross-sectional view of vacuum cleaner 1 according to the embodiment. As shown in FIG. 12, an intake path 71 for preventing overheating of the motor may be provided separately from the normal dust suction path (corresponding to the arrow 70). Although the specific structure of the intake path 71 is not limited, it is desirable to provide the intake path 71 on the downstream side of the dust collection filter 13 and on the upstream side of the intake port of the fan motor 15. If such an intake path 71 is provided, when dust adheres to the dust collection filter 13, the amount of air sucked from the intake path 71 increases and the temperature of the fan motor 15 is prevented from rising excessively. be able to.

  13A and 13B are explanatory views of an intake path 71 for preventing motor overheating included in the vacuum cleaner 1 according to the embodiment. FIG. 13A is an overall perspective view, and FIG. 13B is a cross-sectional view of a main part. 13 (c) is a perspective view of the main part. FIG. 13A shows a state in which the dust cup 22 and the dust collecting filter 13 are removed.

  As shown in FIG. 13, there is a gap between the semicircular cover 10b attached to the front side of the upper portion of the dust cup 22 and the main body housing 10a. The gap between the dust cups 22 may be used as the intake passage 71 for preventing motor overheating. In this example, slits S1 and S2 are provided in the main body housing 10a so as to face the dust collection filter 13. Further, a filter cover 13a is provided on the upstream side of the fan motor 15 so as to face the dust collecting filter 13, and a slit 13b is provided on a side surface of the filter cover 13a.

  As a result, the draft air sucked from the gap of the dust cup 22 flows to the front side of the motor chamber 15c, passes through the slits S1 and S2 provided on the main body housing 10a, and is further provided on the side surface of the filter cover 13a. The air 70 (see FIG. 12) from the normal dust suction path flows into the motor chamber 15c through 13b. Since the gap of the dust cup 22 is only on the side opposite to the object to be cleaned such as the futon (the front side of the main body 10), clean air can be taken in.

  As described above, the cleaner 1 according to the embodiment is a cleaner 1 that includes the motor overheat prevention mechanism that prevents the temperature of the fan motor 15 from rising too high, and is separate from the normal dust suction path. An intake path 71 for preventing overheating is provided. As a result, it is possible to prevent the temperature of the fan motor 15 from rising too much, so that there is no problem that the suction force decreases.

  In addition, a gap between the dust cups 22 on the front side of the main body 10 is used as the intake passage 71 for preventing the motor overheat. As a result, clean air can be taken in, and it is possible to efficiently prevent the motor from overheating.

  Although not particularly mentioned in the above description, the main body 10 and the suction head 30 may be removable or not removable. That is, as long as the main body portion and the head portion can be grasped separately, this embodiment can be applied.

  Further, it goes without saying that the general vacuum cleaner may have various protection functions. For example, a bimetal is provided near the fan motor 15 so that the operation is completely stopped when abnormal heat is generated.

[Other Embodiments]
As described above, the embodiments have been described, but it should not be understood that the description and drawings forming a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  As described above, it goes without saying that the present invention includes various embodiments and the like not described here. Therefore, the technical scope of the present invention is defined only by the matters specifying the invention according to the scope of claims appropriate from the above description.

  Note that there is a vacuum cleaner having a structure in which hot air generated by heating the sucked air is applied to the surface of the object to be cleaned while sucking dust from the surface of the object to be cleaned. For example, Patent Document 1 describes a structure in which sucked air is heated and circulated on the surface of the object to be cleaned.

  According to the vacuum cleaner described in Patent Document 1, warm air is blown out from the lower surface of the casing integrally configured. Therefore, it is difficult for the user to grasp the location where the warm air is blown. Further, since the distance between the hot air outlet and the object to be cleaned is constant, it is difficult to properly adjust the surface temperature of the object to be cleaned.

  Therefore, an object of the present embodiment is to provide a vacuum cleaner that makes it easy for the user to grasp the location where the hot air hits and the temperature can be easily adjusted.

  According to one aspect of the present embodiment, there is provided a cleaner including a suction head rotatably connected to the main body, wherein the main body includes an electric blower that sucks air into the inside via the suction head, A heating unit that heats the air sucked inside by the electric blower, and a discharge port that discharges the air heated by the heating unit to the outside, and the discharge port is formed on the suction head side of the main body. Provided vacuum cleaner.

  According to the present embodiment, it is possible to provide a vacuum cleaner in which the user can easily grasp the place where the hot air hits and the temperature can be easily adjusted.

  The vacuum cleaner according to the present embodiment can be used for all vacuum cleaners. In particular, it is effective when applied to a relatively small and lightweight electric vacuum cleaner called a handy cleaner (for example, a futon cleaner).

1 ... Vacuum cleaner 10 ... Main body 13 ... Dust collection filter (first filter)
15 ... Fan motor (electric blower)
15b ... Suction motor (heating unit)
17 ... Nonwoven fabric filter (second filter)
19 ... Ejection flow path 23 ... Ejection port 30 ... Suction head 50 ... Handle part 70 ... Air, warm air

Claims (6)

A vacuum cleaner body having an electric blower,
A head communicating with the cleaner body,
A dust cup that is removable on the front side of the cleaner body,
A detection unit that is provided in the air passage from the head to the dust cup and detects dust passing through the air passage,
A light emitting unit that is provided in the cleaner body and whose light emission is controlled based on a detection result of the detection unit;
The light emitting unit is provided on the rear side of the dust cup at a position facing the dust cup,
The dust cup allows the light emitted from the light emitting unit to pass therethrough. The vacuum cleaner according to claim 1 , wherein a bottom portion of the dust cup is exposed when the dust cup is mounted on the cleaner body . Has a dust collecting filter that can be attached to and detached from the dust cup,
The vacuum cleaner according to claim 1, wherein the light emitting unit is provided at a position in the cleaner main body that does not face the dust collecting filter.   The vacuum cleaner according to claim 1, wherein the dust cup is configured to diffuse light emitted from the light emitting unit.   The vacuum cleaner according to claim 4, wherein the dust cup has a translucent material or an uneven shape to diffuse the light emitted from the light emitting unit. The vacuum cleaner body is
A control board for controlling the light emission of the light emitting unit;
An outlet for discharging the air sucked into the cleaner body by the electric blower to the outside,
A discharge flow path from the electric blower to the discharge port,
The vacuum cleaner according to any one of claims 1 to 5, wherein a space in which the control board is accommodated is partitioned from the discharge flow path.

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