CN204253388U - Blower - Google Patents

Abstract

The utility model discloses a kind of blower, it comprises: the shell of body, control circuit board and coated body and control circuit board, described body comprises the rear air guide sleeve of motor and coated motor, described shell comprises the second installing space for installing control circuit board, described shell is provided with upper end air-inlet grille, described rear air guide sleeve is provided with ventilation slot, described upper end air-inlet grille and the second installing space, forms vent passages by ventilation slot and rear air guide sleeve.Described control circuit board is positioned at this vent passages, and during described vane rotary, the heat of control circuit board is taken away by the air entered from upper end air-inlet grille, thus plays the effect of cooling control circuit board, improves the usability of control circuit board.

Description

Blower

Technical field

The utility model relates to a kind of blower, particularly a kind of blower with control circuit board.

Background technique

In graden machine, the air stream that blower makes fan rotate by motor and produces, thus dust out or refuse are to clean.

Blower generally includes: body, be coated on extra-organismal shell, be connected to the control circuit board of body and be sheathed on the extension nozzle of body front end, body comprises motor, be coated on the electrical machinery cover outside motor and be installed on the impeller of motor, when blower operation overlong time, control circuit board produces a large amount of heats, control circuit board easily damages, the structure of existing blower is bad, and heat dispersion is poor, is unfavorable for long-time operation.

Therefore, in view of above problem, be necessary to propose a kind of new blower, to improve heat dispersion.

Model utility content

Be the blower that a kind of good heat dissipation effect is provided order of the present utility model.

For realizing above-mentioned order ground, the utility model adopts following technological scheme: a kind of blower, it comprises: the shell of body, control circuit board and coated body and control circuit board, described body comprises the rear air guide sleeve of motor and coated motor, described shell comprises the second installing space for installing control circuit board, described shell is provided with upper end air-inlet grille, described rear air guide sleeve is provided with ventilation slot, described upper end air-inlet grille and the second installing space, forms air channel by ventilation slot and rear air guide sleeve.

In a preferred embodiment, described upper end air-inlet grille is positioned at the second installing space front, and described rear air guide sleeve is positioned at below described second installing space.

In a preferred embodiment, described ventilation slot is sleeve configuration and arranges along rear air guide sleeve rear edge.

In a preferred embodiment, described rear air guide sleeve comprises rear outer cover, and described ventilation slot is positioned on rear outer cover.

In a preferred embodiment, described rear air guide sleeve comprises the mounting cup for fixed electrical machinery, and described mounting cup is positioned at the inner side of described rear outer cover, and described body comprises the impeller being installed on motor, and described impeller is positioned at described rear outer cover.

In a preferred embodiment, described vane rotary drives described air-flow to flow from back to front.

In a preferred embodiment, described blower comprises the former dome being installed on rear air guide sleeve front end, described former dome is provided with the flow deflecting cone of accommodating motor, described rear air guide sleeve is provided with the mounting cup of accommodating motor, described flow deflecting cone is corresponding with before and after mounting cup, and described motor is installed between flow deflecting cone and mounting cup.

In a preferred embodiment, described blower is axial-flow blower.

Compared with prior art, the utility model has following beneficial effect: the upper end air-inlet grille of blower is by forming current path between ventilation slot and outer back cover, described control circuit board is positioned at this current path, during described vane rotary, the heat of control circuit board is taken away by the air entered from upper end air-inlet grille, thus play the effect of cooling control circuit board, improve the usability of control circuit board.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the stereogram of the utility model blower.

Fig. 2 is another angle stereogram of the utility model blower.

Fig. 3 is the utility model blower portions three-dimensional exploded view.

Fig. 4 is the stereogram of the body of the utility model blower.

Fig. 5 is the three-dimensional exploded view of the body of the utility model blower.

Fig. 6 is the stereogram of the impeller of the utility model blower.

Embodiment

As shown in Figures 1 to 6, the utility model is a kind of blower 100 of gardens, and it comprises: shell 1, the body 2 be installed in shell 1, control circuit board 3, battery component 4 and be installed on the extension nozzle 4 of body 2 front end.

Described shell 1 comprises main body portion 11, handle part 12, upper end air-inlet grille 13 and rear end air-inlet grille 14, 12, described handle is positioned at the top of main body portion 11, described upper end air-inlet grille 13 is installed on the upper end of main body portion 11 and is positioned at the front end of handle part 12, described rear end air-inlet grille 14 is installed on the rear end of described main body portion 11 and is positioned at the below of described handle part 12, described main body portion 11 is by a left side, right two-part fit together, described main body portion 11 comprises installs the first installing space 111 of described body 2 and the second installing space 112 for installing control circuit board 3, air intake space is provided with between described first installing space 111 and rear end air-inlet grille 14, described upper end air-inlet grille 13 is for being obliquely installed, described rear end air-inlet grille 14 is also for be obliquely installed and roughly parallel with upper end air-inlet grille 13, described first installing space 111 is positioned at the below of described main body portion 11 and runs through forward described main body portion 11, and described second installing space 112 is positioned at the top of described first installing space 111 and is positioned at the rear of described upper end air-inlet grille 13.

Described rear end air-inlet grille 14 from the top of rear end forward and downward-sloping, in the second installing space that described control circuit board 3 is installed on described main body portion 11 112.

Described body 2 is installed in the first installing space 111 of described main body portion 11, described body 2 comprises motor 21, former dome 22, rear air guide sleeve 23, impeller 24 and air outlet grate 25, described former dome 22 comprises the front outer cover 221 of cylinder type, conical flow guiding cone 222 in front outer cover 221 inside and the some front stator blade 223 before connecting between outer cover 221 and described flow deflecting cone 222, the rear end of described front outer cover 221 is concordant with the rear end of flow deflecting cone 222, the front end of described front outer cover 221 extends beyond described flow deflecting cone 222, rear end outside described front outer cover 221 is provided with the some latch part 224 outwards protruded out, described front stator blade 223 is in tilted layout relative to air path, before the utility model, stator blade 223 is set to 6, the thickness of the described front stator blade 223 near top is thick compared with stator blade 223 before other positions, this front stator blade 223 is provided with the hollow slot 2231 caved in from back to front, described hollow slot about 2231 extends through described front stator blade 223, described hollow slot 2231 connects outside flow deflecting cone 222 inside and former dome 22, the rear end of described motor 21 is installed in flow deflecting cone 222 from back to front, some fixing columns 2221 that power supply machine 21 frame is held are provided with in described flow deflecting cone 222, the power line of described motor 21 extends to outside by described hollow slot 2231, and be connected with control circuit board 3, described motor 21 is controlled by control wiring 3 plate, described flow deflecting cone 222 rear end surface be provided with some inside and outside run through " U " type fluting 2222, the shell of described motor 21 is exposed to outside from fluting 2222, described fluting 2222 and front stator blade 223 interval are arranged.

Described rear air guide sleeve 23 comprises the rear outer cover 231 of cylinder type, the mounting cup 232 for mounted motor 21 in rear outer cover 231 and the some rear stator blade 233 after connecting between outer cover 231 and mounting cup 232, described rear outer cover 231 is corresponding with front outer cover 221, described mounting cup 232 is corresponding with the rear end of flow deflecting cone 222, described rear stator blade 233 is with front stator blade 223 one_to_one corresponding and be set to 6, after institute, air guide sleeve 23 is installed on former dome 22 from back to front, described motor 21 is coated on inside by described flow deflecting cone 222 with described mounting cup 232, the rotor of described motor 2 from after extend described mounting cup 232, the snap close seat 234 corresponding with the latch part 224 of front outer cover 221 is provided with outside the rear outer cover 231 of described rear air guide sleeve 23, described former dome 22 and rear air guide sleeve 23 by screw described latch part 224 tightened together with described snap close 234 realize fixing, upper and lower end outside described rear outer cover 231 is provided with the installing tache 2311 protruded out, the rear end of described rear outer cover 231 is provided with a trumpet-shaped intake grill 2312, on the rotor that described impeller 24 is installed on described motor 21 and to be positioned at described rear outer cover 231 inner, described motor 21, impeller 24 and front, rear air guide sleeve 22, the center line of 23 is all located along the same line, some rotation blades 242 that described impeller 24 comprises circular top part 241 and extends to surrounding from circular top part 241, the size of described circular top part 242 is identical with the size of described mounting cup 232, setting like this can prevent dust from entering the air that in motor 21, rectifiable simultaneously enters, described rotation blade 242 is arranged around described dome 241 with equi-angularly space, described rotation blade 242 partly overlaps in the axial direction with the rotor of motor 21.

Described motor 21 is positioned at the front of described impeller 24, when described motor 21 drives described impeller 24 to rotate, described impeller 24 enters with the intake grill 2312 of moving air flow from described rear air guide sleeve 23, flow out from described former dome 22, the top of described rear outer cover 23 is provided with the ventilation slot 2313 run through inside, after described body 2 is installed on the first installing space 111 of described shell 1, described control circuit board 3 is positioned at the top of body 2, described second installing space 112 is communicated with rear outer cover 231 inside of described rear air guide sleeve 23 by described ventilation slot 2313, described ventilation slot 2313 is sleeve configuration and arranges along rear outer cover 231 rear edge, when described impeller 24 rotates, air-flow enters from upper end air-inlet grille 13, after the second installing space 112 also enters through ventilation slot 2313 in outer cover 231, form current path, the heat of control circuit board 3 is taken away by the air entered from upper end air-inlet grille 13, thus play the effect of cooling control circuit board 3, improve the usability of control circuit board 3.

Described extension nozzle 4 is installed on the front end outer side of the front outer cover 221 of described former dome 22, described air outlet grate 25 is installed on the inside front ends of the front outer cover 221 of described former dome 22, and described body 2 is fixed in the first installing space 111 of described main body portion 11 by the installing tache 2311 of rear air guide sleeve 23 and also extends forward described main body portion 11.

The upper end air-inlet grille 13 of blower 100 described in the utility model is by forming current path between ventilation slot 2313 and outer back cover 231, described control circuit board 3 is positioned at this current path, when described impeller 24 rotates, the heat of control circuit board 3 is taken away by the air entered from upper end air-inlet grille 13, thus play the effect of cooling control circuit board 3, improve the usability of control circuit board 3.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (8)

1. a blower (100), it comprises: body (2), the shell (1) of control circuit board (3) and coated body (2) and control circuit board (3), described body (2) comprises the rear air guide sleeve (23) of motor (21) and coated motor (21), described shell (1) comprises the second installing space (112) for installing control circuit board (3), it is characterized in that: described shell (1) is provided with upper end air-inlet grille (13), described rear air guide sleeve (23) is provided with ventilation slot (2313), described upper end air-inlet grille (13) and the second installing space (112), air channel is formed by ventilation slot (2313) and rear air guide sleeve (23).

2. blower as claimed in claim 1, it is characterized in that: described upper end air-inlet grille (13) is positioned at the second installing space (112) front, described rear air guide sleeve (23) is positioned at described second installing space (112) below.

3. blower as claimed in claim 1, is characterized in that: described ventilation slot (2313) is for sleeve configuration and arrange along rear air guide sleeve (23) rear edge.

4. blower as claimed in claim 1, is characterized in that: described rear air guide sleeve (23) comprises rear outer cover (231), and described ventilation slot (2313) is positioned on rear outer cover (231).

5. blower as claimed in claim 4, it is characterized in that: described rear air guide sleeve (23) comprises the mounting cup (232) for fixed electrical machinery (21), described mounting cup (232) is positioned at the inner side of described rear outer cover (231), described body (2) comprises the impeller (24) being installed on motor (21), and described impeller (24) is positioned at described rear outer cover (231).

6. blower as claimed in claim 5, is characterized in that: described impeller (24) rotarily drives air-flow and flows from back to front.

7. blower as claimed in claim 1, it is characterized in that: described blower (100) comprises the former dome (22) being installed on rear air guide sleeve (23) front end, described former dome (22) is provided with the flow deflecting cone (222) of accommodating motor (21), described flow deflecting cone (222) is corresponding with before and after mounting cup (232), and described motor (21) is installed between flow deflecting cone (222) and mounting cup (232).

8. blower as claimed in any of claims 1 to 7 in one of claims, is characterized in that: described blower (100) is axial-flow blower.