CN220675380U

CN220675380U - Wireless blower

Info

Publication number: CN220675380U
Application number: CN202223607958.6U
Authority: CN
Inventors: 马加华; 汪治洋; 牛壮
Original assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Current assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2024-03-29
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to a wireless blower, comprising a main machine body, wherein the main machine body comprises a main machine shell, and the wireless blower comprises: the motor is positioned in the main machine shell and comprises a motor air outlet and a motor outer cover; an air inlet end of the outer cylinder is provided with an opening, and the opening is a hot air inlet; the inner barrel is coaxially arranged in the outer barrel, a gap is reserved between the inner barrel and the inner wall of the outer barrel, openings are formed in two ends of the inner barrel, the opening at the air inlet end is a cold air inlet, the opening at the air outlet end is a cold air outlet, a hot air channel is formed between the inner barrel and the outer barrel, and a cold air channel is formed inside the inner barrel. According to the wireless blower provided by the utility model, the hot air channel is arranged at the outer side, the cold air channel is arranged at the center, and the air quantity of hot air is larger, so that the heat exchange effect with the heating wire is better, the phenomenon that the hot air is too concentrated is avoided, the feeling of a user is more comfortable, the skin is not burnt or scalded, and the hair is not damaged.

Description

Wireless blower

Technical Field

The utility model relates to the technical field of small household appliances, in particular to a wireless blower.

Background

The existing wireless blower adopts a structure of central hot air and peripheral cold air. Because the gravity center hot air is more concentrated, the air outlet area is more concentrated, so that the heat tends to be concentrated correspondingly, the skin of a user has a burning sensation, and the skin is possibly scalded and other injuries are possibly caused when the skin is severe. Even if the skin is not burned, the user can feel uncomfortable due to the heat concentration.

Disclosure of Invention

The utility model aims to provide a wireless blower, which solves the problem of skin scald caused by too concentrated heat of the channel structure of the existing external-cold internal-heat blower and improves the comfort level of a user.

To achieve the purpose, the utility model adopts the following technical scheme:

a wireless blower comprising a main body, the main body comprising a main housing, the wireless blower comprising:

the motor is positioned in the main machine shell and comprises a motor air outlet and a motor outer cover;

an air inlet end of the outer cylinder is provided with an opening, and the opening is a hot air inlet;

the inner cylinder is coaxially arranged in the outer cylinder, a gap is reserved between the inner cylinder and the inner wall of the outer cylinder, openings are formed in two ends of the inner cylinder, the opening at the air inlet end is a cold air inlet, the opening at the air outlet end is a cold air outlet, a hot air channel is formed between the inner cylinder and the outer cylinder, and a cold air channel is formed in the inner cylinder;

The connecting plate is communicated with the motor air outlet, one end, close to the motor air outlet, of the connecting plate is connected with the motor outer cover, the other end of the connecting plate is connected with the outer cylinder, the motor air outlet and the inner cylinder are sequentially arranged along a first direction, and the orthographic projection of the axis of the motor air outlet in the first direction falls into the inner cylinder; the cold air inlet corresponds to the motor air outlet in position and keeps a distance, so that the motor air outlet can be simultaneously communicated with the hot air channel and the cold air channel.

The motor air outlet and the inner barrel are sequentially arranged along a first direction, and the first overlapping area is larger than the second overlapping area, and the first overlapping area is as follows: the front projection of the motor air outlet in the first direction and the superposition area of the front projection of the cold air inlet in the first direction are the following: and the superposition area of the orthographic projection of the motor air outlet in the first direction and the orthographic projection of the hot air inlet in the first direction.

The inner wall of the connecting plate comprises an inner conical surface gradually expanding along the direction of the air flow and a hot air guiding surface connected with the inner conical surface, the air flow blown out from the air outlet of the motor flows into the cold air inlet and the hot air inlet in a guiding way through the inner conical surface, and part of the air flow flowing into the hot air inlet flows out further through the hot air guiding surface.

The cold air inlet is directed to the inner conical surface.

The inclination of the inner conical surface is 10-30 degrees.

The inclination of the inner conical surface is 15-20 degrees.

The distance between the cold air inlet and the hot air guide surface in the first direction is H1, and the distance between the cold air inlet and the motor air outlet in the first direction is H2, H1: the H2 range is 0.15 to 0.35.

Further comprises:

a cold air outlet and a hot air outlet, wherein the air flow blown out from the cold air inlet flows out through the cold air outlet, and the air flow blown out from the hot air inlet flows out through the hot air outlet;

the release device is arranged in the inner cylinder, a release inlet of the release device is communicated with the cold air inlet, and a curing tuyere of the release device is communicated with the release inlet.

In the radial direction, the distance between the maintenance air port and the hot air outlet is D1, and the range of D1 is 15mm to 33mm.

Further comprises: the air outlet panel is connected with the outer cylinder, the inner cylinder and the release device, and the cold air outlet, the hot air outlet and the maintenance air outlet are arranged on the air outlet panel.

The outer cylinder is connected with the connecting plate through a bayonet clamping block structure.

And a sixth clamping block is arranged at the opening of the air inlet end of the outer cylinder, and correspondingly, a sixth bayonet corresponding to the sixth clamping block is arranged on the connecting plate.

The outside of connecting plate still is equipped with annular seal groove, the urceolus is installed in the seal groove to be equipped with the sealing washer in the seal groove and seal.

The heating wire clamping device comprises a heating wire, and is characterized by further comprising a mica sheet, wherein a plurality of clamping grooves which are uniformly arranged are formed in the outer side edge of the mica sheet, and the width of each clamping groove is matched with the width of the heating wire, so that the heating wire can be embedded and installed in each clamping groove.

The outer side edge of the mica sheet is abutted against the inner wall of the outer cylinder.

And/or two ends of the mica sheet are respectively connected with the slots on the outer wall of the inner cylinder through the inserting blocks; preferably, the slot is a blind slot which does not penetrate through the outer wall of the inner barrel.

One end of the mica sheet is provided with a first inserting block, the other end of the mica sheet is provided with a second inserting block, correspondingly, the outer wall of the inner cylinder is provided with a first inserting groove and a second inserting groove, the first inserting block is connected in the first inserting groove, and the second inserting block is connected in the second inserting groove.

An air outlet panel is arranged at the air outlet end of the outer barrel, and an annular groove is formed in the inner surface of the air outlet panel; correspondingly, the air outlet end of the inner cylinder is provided with an annular rib, and the annular rib is correspondingly connected in the annular groove so as to fix the inner cylinder on the air outlet panel of the outer cylinder.

The outer side surface of the air outlet end of the inner cylinder is provided with an inclined surface which is inclined outwards so as to guide the air flow to the hot air outlet.

The main machine shell comprises a containing cavity, a connecting cavity and a sealing ring, wherein the containing cavity is communicated with the connecting cavity, and the connecting cavity is positioned at the lower part of the containing cavity; an air duct component and a motor component are arranged in the accommodating cavity, an air inlet component and an air guide component are arranged at the inlet end of the motor component, the air duct component is communicated with the outlet of the motor component, a first connecting component is arranged in the connecting cavity, and the air duct component and the air guide component are detachably connected with the handle through the first connecting component; and the air inlet end of the main machine shell is in butt joint with the rear cover of the air inlet assembly through a sealing ring and is sealed.

Preferably, a first positioning groove and a first guide strip are arranged on the inner wall of the accommodating cavity near the air outlet end, and the outer cylinder of the air duct assembly is correspondingly connected with the first positioning groove and the first guide strip through a first positioning notch and the first guide strip.

The inner wall of the accommodating cavity is provided with a first clamping block close to the air inlet end, and the fixing frame of the motor assembly is connected with the first clamping block through a first bayonet.

The inner wall of the connecting cavity is provided with a guide rib, and the fixed block of the first connecting component is connected with the guide rib through a notch groove;

A connecting block is further arranged on the inner wall of the connecting cavity, and the fixed block of the first connecting component is fixedly connected to the connecting block;

the side wall of the connecting cavity is also provided with a transverse chute, and the sliding block of the first connecting component is connected in the transverse chute through a shifting block.

The beneficial effects of the utility model are as follows:

according to the wireless blower provided by the utility model, the hot air channel is arranged at the outer side, the cold air channel is arranged at the center, and the air quantity of hot air is larger, so that the heat exchange effect with the heating wire is better, the phenomenon that the hot air is too concentrated is avoided, the feeling of a user is more comfortable, the skin is not burnt or scalded, and the hair is not damaged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is an assembled schematic view of a blower (including a rechargeable base) provided in this embodiment;

Fig. 2 is an assembly schematic diagram of the main body provided in the present embodiment;

fig. 3 is an assembly schematic diagram of the main body provided in the present embodiment;

FIG. 4 is an assembled schematic view of the main housing provided in this embodiment;

FIG. 5 is an assembled schematic view of the main housing provided in this embodiment;

fig. 6 is a schematic structural view of a main casing provided in the present embodiment;

FIG. 7 is an assembled schematic view of the air intake assembly provided in this embodiment;

FIG. 8 is an assembled schematic view of the air intake assembly provided in this embodiment;

fig. 9 is an assembled schematic view of the motor assembly provided in this embodiment;

FIG. 10 is an assembled schematic view of the motor assembly provided by the present embodiment;

fig. 11 is a schematic structural view of the motor assembly provided in the present embodiment;

fig. 12 is a schematic structural view of the motor assembly provided in the present embodiment;

FIG. 13 is an assembled schematic view of the air guiding assembly provided in this embodiment;

FIG. 14 is an assembled schematic view of the air guiding assembly provided in this embodiment;

fig. 15 is a schematic structural view of an air guiding assembly according to the present embodiment, where (a) is a schematic structural view of one of the air guiding assemblies according to the present embodiment, and B is a schematic structural view of another air guiding assembly according to the present embodiment;

fig. 16 is an assembly schematic diagram of the air guiding assembly, the air intake assembly, the motor assembly and other blower structures provided in this embodiment;

Fig. 17 is an assembly schematic diagram of an air duct assembly according to the present embodiment, wherein (a) is an assembly schematic diagram of one of the air duct assemblies according to the present embodiment, and (B) is an assembly schematic diagram of another air duct assembly according to the present embodiment;

fig. 18 is a schematic overall structure of an air duct assembly according to the present embodiment, where (a) is a schematic overall structure of one of the air duct assemblies according to the present embodiment, and (B) is a schematic overall structure of another air duct assembly according to the present embodiment;

FIG. 19 is a schematic diagram of a connection structure of the air duct assembly and the motor assembly according to the present embodiment;

FIG. 20 is an assembled schematic view of the first connecting assembly according to the present embodiment;

fig. 21 is an assembly schematic view of the first connecting assembly provided in the present embodiment;

fig. 22 is a schematic structural view of a first connecting component provided in the present embodiment;

fig. 23 is an assembled schematic view of the battery case assembly provided in the present embodiment;

fig. 24 is a schematic view of the structure of the battery case assembly provided in the present embodiment;

fig. 25 is an assembly schematic view of the battery assembly provided in the present embodiment;

fig. 26 is an assembly schematic diagram of the battery assembly provided in the present embodiment;

fig. 27 is a schematic view of the structure of the battery assembly provided in the present embodiment;

Fig. 28 is an assembly schematic view of the second connection assembly provided in the present embodiment;

fig. 29 is a schematic structural view of a second connection assembly provided in the present embodiment;

fig. 30 is a schematic structural view of a cross section of the main body provided in the present embodiment;

fig. 31 is a schematic view of the structure of a horizontal section of the main body provided by the present embodiment;

fig. 32 is a schematic view of the structure of a vertical section of the blower provided in this embodiment.

The figures are labeled as follows:

1000. a main body;

1100. a main housing;

1110. a receiving chamber;

1111. an air inlet end;

1112. an air outlet end;

1113. a first positioning groove;

1114. a first guide bar;

1115. a first clamping block;

1120. a connecting cavity;

1121. a connecting block;

1122. guide ribs;

1123. a transverse chute;

1130. a seal ring; 1200. an air inlet assembly;

1210. a rear cover;

1220. an air guide ring;

1221. an air guiding surface;

1222. a fixing groove;

1230. a magnetic block;

1300. a motor assembly;

1310. a motor;

1311. positioning clamping grooves;

1320. a semicircular plate;

1321. a second clamping block;

1322. a third bayonet;

1323. positioning a clamping block;

1324. a positioning port;

1325. a first step portion;

1330. a fixing frame;

1331. a first bayonet;

1332. an air inlet hole;

1333. a fifth clamping block;

1334. a third clamping block;

1335. an arc-shaped notch;

1336. A semicircular tube;

1337. a positioning block;

1338. negative pressure wind holes;

1339. a fixing plate;

1340. a heat conductive plate;

1341. an arc-shaped heat dissipation part; 1342. a second step portion;

1350. a main control board;

1351 A MOS region;

1352. a first air passing hole; 1353. a wind passing notch;

1360. a return air space; 1400. an air guide assembly;

1410. an air guide bracket;

1411. a mounting groove;

1412. a support leg;

1420. a filter screen;

1430. a display element;

1440. a cover plate;

1441. a fixed foot;

1450. iron blocks;

1500. an air duct assembly;

1510. an outer cylinder;

1511. a first positioning notch; 1512. a first guide groove;

1513. a sixth clamping block;

1514. a hot air outlet;

1515. a cold air outlet;

1516. maintaining the tuyere;

1517. an air outlet panel;

1518. a ring groove;

1520. an inner cylinder;

1521. a first slot;

1522. a second slot;

1523. annular rib;

1530. a connecting plate;

1531. a sixth bayonet;

1532. a second bayonet;

1533. a fifth bayonet;

1534. sealing grooves;

1535. a return air structure;

1536. a wind hole;

1540. mica sheets;

1541. a first plug;

1542. a second insert block;

1543. a clamping groove;

1550. a heating wire;

1560. a release device;

1570. a hot air channel;

1580. a cold air channel;

1600. a first connection assembly;

1610. a fixed block;

1611. a notch groove;

1612. A sixth air inlet;

1613. a connector jack;

1614. a sliding part;

1620. a slide block;

1621. a sliding sheet;

1622. a convex column;

1623. a shifting block;

1630. connecting a circuit board; 2000. handle

2100. A battery case assembly;

2110. a battery case;

2120. a bottom plate;

2121. a first air inlet;

2130. a power connection sheet;

2200. a battery assembly;

2210. a battery;

2220. a bottom bracket;

2221. a second air inlet;

2230. a middle bracket;

2231. a third air inlet;

2240. a top bracket;

2241. a fourth air inlet hole;

2242. a terminal fixing portion;

2300. a second connection assembly;

2310. inserting blocks;

2311. a fifth air inlet;

2312. a joint fixing hole;

2313. clamping;

2320. a terminal fitting;

2400. an air inlet channel;

3000. a base;

alpha obtuse included angle;

beta is an acute included angle.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication of structures in two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", "front", "rear", and the like are orientation or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-32, the present embodiment provides a wireless blower, which includes a main body 1000, a handle 2000 and a base 3000, wherein a rechargeable battery is installed in the handle 2000, the base 3000 is provided with a charger, and when the bottom of the handle 2000 is inserted into the base 3000, the rechargeable battery in the handle 2000 can be charged by the charger of the base 3000; the handle 2000 is detachably connected with the main body 1000, so that when the electric quantity of the rechargeable battery in the handle 2000 is exhausted, the wireless blower can be still used after other standby handles 2000 are replaced, and the working time of the wireless blower is prolonged.

Referring to fig. 2-3, the main body 1000 includes a main housing 1100, an air intake assembly 1200, a motor assembly 1300, an air guide assembly 1400, an air duct assembly 1500, and a first connection assembly 1600, wherein the main housing 1100 provides an outer housing in which other components are accommodated.

Referring to fig. 4 to 6, the main chassis 1100 includes a receiving cavity 1110, a connection cavity 1120, and a sealing ring 1130, the receiving cavity 1110 and the connection cavity 1120 communicate, and the connection cavity 1120 is located at a lower portion of the receiving cavity 1110; the air duct assembly 1500 and the motor assembly 1300 are arranged in the accommodating cavity 1110, the air inlet assembly 1200 and the air guide assembly 1400 are arranged at the inlet end of the motor assembly 1300, the air duct assembly 1500 is communicated with the outlet of the motor assembly 1300, the first connecting assembly 1600 is arranged in the connecting cavity 1120, and the air duct assembly 1500 is detachably connected with the handle 2000 through the first connecting assembly 1600; the motor assembly 1300 is located within the main housing 1100 and is capable of powering a blower; at the air intake end of the main chassis 1100, it is abutted and sealed with the rear cover 1210 of the air intake assembly 1200 by a sealing ring 1130.

Preferably, a first positioning groove 1113 and a first guiding strip 1114 are disposed on the inner wall of the accommodating cavity 1110 near the air outlet end, and the outer cylinder 1510 of the air duct assembly 1500 is correspondingly connected with the first positioning groove 1113 and the first guiding strip 1114 through the first positioning notch 1511 and the first guiding groove 1512, so that the fixed connection between the main casing 1100 and the air duct assembly 1500 is realized.

Preferably, a first clamping block 1115 is disposed on an inner wall of the accommodating cavity 1110 near the air inlet end, and the fixing frame 1330 of the motor assembly 1300 is connected with the first clamping block 1115 through a first bayonet 1331, so as to realize fixed connection between the main casing 1100 and the motor assembly 1300.

Preferably, the inner wall of the connecting cavity 1120 is provided with a guiding rib 1122, and the fixing block 1610 of the first connecting component 1600 is connected with the guiding rib 1122 through a notch 1611, and the guiding rib 1122 not only guides the installation of the first connecting component 1600, but also limits the first connecting component 1600 after the installation of the first connecting component 1600, so as to prevent the circumferential rotation of the first connecting component 1600.

Preferably, a connecting block 1121 is further disposed on an inner wall of the connecting cavity 1120, the fixing block 1610 of the first connecting component 1600 is fixedly connected to the connecting block 1121, and the first connecting component 1600 can be fixed in the connecting cavity 1120 through the connecting block 1121, so as to avoid shaking of the structure of the first connecting component 1600.

Preferably, a lateral sliding slot 1123 is further provided on a side wall of the connection cavity 1120, and the slider 1620 of the first connection assembly 1600 is connected in the lateral sliding slot 1123 through a pulling block 1623.

Referring to fig. 7-8, the air inlet assembly 1200 is ring-shaped and is detachably connected to the outer side surface of the fixing plate 1339; and the inner ring of the air intake assembly 1200 is sized larger than the wind shielding structure of the air guide bracket 1410 so that the space between the inner ring of the air intake assembly 1200 and the wind shielding structure is maintained and the filter screen is shielded from the outside. The air inlet assembly 1200 is connected with the air guide assembly 1400 through a magnetic attraction structure; preferably, the magnetic attraction structure is formed by attraction connection of a magnet and an iron block or attraction connection of the magnet and the magnet. Preferably, the edge of the wind guide assembly 1400 is provided with an iron block 1450 fixedly connected to the fixing plate 1339; correspondingly, a magnetic block 1230 is disposed at a corresponding location of the air intake assembly 1200. The air intake assembly 1200 comprises a rear cover 1210, an air guide ring 1220 and a magnetic block 1230, wherein the rear cover 1210 is annular and is connected with an opening of an air intake end of the main machine shell 1100, and the rear cover 1210 is consistent with the whole appearance of the main machine shell 1100, so that the rear cover 1210 has good visual effect after being abutted; the air guiding ring 1220 is also ring-shaped, connected to the inner side of the rear cover 1210 and adapted to the shape of the rear cover 1210, the inner side of the air guiding ring 1220 is an air guiding surface 1221 tapering inwards along the axial direction of the main housing 1100, a plurality of fixing slots 1222 are provided around the front end of the air guiding surface 1221, and the magnetic blocks 1230 are fixedly connected in the fixing slots 1222. The magnetic block 1230 is used for adsorbing the rear cover 1210 on the main chassis 1100 by magnetic force, so that the air intake assembly 1200 can be docked and dismounted with the main chassis 1100. In this embodiment, the number of the magnetic blocks 1230 is 3, and the magnetic blocks 1230 are arranged in a triangle shape in the circumferential direction of the rear cover 1210, and the number of the magnetic blocks 1230 can be selected according to the use requirement in the implementation process.

Referring to fig. 9-10, the motor assembly 1300 includes a motor 1310, a semicircular plate 1320, a fixing frame 1330, a heat conducting plate 1340, and a main control board 1350, wherein the fixing frame 1330 is provided with a semicircular tube 1336, and the semicircular plate 1320 is abutted with the semicircular tube 1336 to form a cylindrical motor fixing housing for fixing the motor 1310 therein. Both sides of the semicircular plate 1320 are fixedly connected with a third clamping block 1334 on the semicircular tube 1336 through a third clamping opening 1322, meanwhile, a positioning block 1337 capable of being inserted into a positioning opening 1324 on the semicircular plate 1320 is further arranged on the semicircular tube 1336, and the positioning block 1337 and the positioning opening 1324 are connected to position the semicircular plate 1320 in the axial direction of the motor. In order to enable the motor 1310 to be better fixed in the motor fixing shell, the inner wall of the front end of the semicircular plate 1320 is provided with a positioning clamping block 1323 protruding inwards, and correspondingly, the front end shell of the motor 1310 is provided with a positioning clamping groove 1311, and the positioning clamping block 1323 is connected in the positioning clamping groove 1311, so that the axial direction and the radial direction of the motor 1310 can be simultaneously positioned, and the axial movement and the radial rotation of the motor 1310 in the motor fixing shell are effectively prevented.

The air inlet end of the fixing frame 1330 is also provided with a fixing plate 1339, the middle part of the fixing plate 1339 is connected with a semicircular tube 1336, and the edge of the fixing plate 1339 is fixedly connected with the inner wall of the main machine shell 1100; an air inlet 1332 is provided on the fixing plate 1339 corresponding to the air inlet side of the motor 1310, and the air inlet 1332 can be directly communicated with the air inlet of the motor 1310. The fixing plate 1339 is provided with a first bayonet 1331 in the circumferential direction, and is connected with a first clamping block 1115 on the inner wall of the accommodating cavity 1110 through the first bayonet 1331, so that the fixing frame 1330 is fixed in the accommodating cavity 1110 of the main casing 1100. In the implementation process, the bayonet clamping structure can be replaced by a clamping groove clamping structure, for example, a clamping groove is formed in the inner wall of the accommodating cavity 1110, and a clamping block capable of being inserted into the clamping groove is correspondingly formed in the circumferential direction of the fixing plate 1339. The number of the clamping groove clamping blocks and the clamping opening clamping blocks is usually multiple, so that multi-point fixing is realized. The first bayonet 1331 shown in fig. 9-10 is three, but could alternatively be provided in two, four, or other numbers.

The main control board 1350 is used for controlling the motor 1310, and is installed in a chamber between the outer casing of the motor 1310 and the inner wall of the main casing 1100, the main control board 1350 has a ring structure with a through hole in the middle, and after the semicircular plate 1320 and the semicircular tube 1336 of the fixing frame 1330 are butted to form a cylindrical motor fixing shell, the motor fixing shell passes through the through hole of the main control board 1350, and the main control board 1350 is fixed on the fixing plate 1339 through a screw. The main control board 1350 is provided with a MOS region 1351, and MOS elements are disposed in the MOS region 1351, where the position of the MOS region 1351 corresponds to the position of the semicircular board 1320. A heat conducting plate 1340 is installed between the MOS region 1351 and the fixing plate 1339, and the heat conducting plate 1340 can rapidly conduct out the heat of the MOS region, so that the main control board 1350 is ensured to work at a proper temperature. A plurality of first through-air holes 1352 are further formed in the main control board 1350 in the MOS area 1351, and the first through-air holes penetrate through the two side surfaces of the main control board 1350, so that air flow can pass through; an air passing notch 1353 is also provided at the lower portion of the main control board 1350, and the air passing notch 1353 is located at a side close to the housing of the motor 1310, so that air flow can pass through the air passing notch 1353.

A semicircular plate 1320, which is butted with a semicircular tube 1336 of the fixing frame 1330 to form a cylinder structure for fixing the motor 1310, wherein the motor 1310 is surrounded and fixed in the cylinder structure by the semicircular plate 1320 and the semicircular tube 1336; the two ends of the semicircular plate 1320 are respectively in butt joint with the heat conducting plate 1340 and the connecting plate 1530, so that the fixing frame 1330, the semicircular plate 1320, the motor 1310 and the connecting plate 1530 are connected into a whole, the fixed support of the motor 1310 is realized, and a return air space 1360 is formed with the inner wall of the main machine shell 1100. The connection plate 1530 is communicated with the motor air outlet, one end close to the motor air outlet is connected with the motor housing, the other end is connected with the outer cylinder 1510, the motor air outlet and the inner cylinder 1520 are sequentially arranged along a first direction, and the orthographic projection of the axis of the motor air outlet in the first direction falls into the inner cylinder 1520; the cold air inlet corresponds to the position of the motor air outlet and keeps a distance, so that the motor air outlet can be simultaneously communicated with the hot air channel 1570 and the cold air channel 1580, the heat exchange effect of the heating wire is better, the hot air is prevented from being too concentrated, the feeling of a user is more comfortable, the skin is not burnt or scalded, and the hair is not damaged.

The motor air outlet and the inner cylinder 1520 are sequentially arranged along the first direction, and the first overlapping area is larger than the second overlapping area, and the first overlapping area is: the area of superposition of orthographic projection of the motor air outlet in the first direction and orthographic projection of the cold air inlet in the first direction is as follows: the superposition area of the orthographic projection of the motor air outlet in the first direction and the orthographic projection of the hot air inlet in the first direction.

The inner wall of the connection plate 1530 includes an inner tapered surface gradually expanding along the direction of the air flow and a hot air guiding surface connecting the inner tapered surface, the air flow blown out from the air outlet of the motor is guided to flow into the cold air inlet and the hot air inlet through the inner tapered surface, and a part of the air flow flowing into the hot air inlet is further flowed out through the hot air guiding surface, and accordingly, the cold air inlet is guided to the inner tapered surface. The slope of the inner conical surface may be designed individually according to the needs of the application, for example, between 10 and 30 degrees, or even more preferably between 15 and 20 degrees.

The distance between the cold air inlet and the hot air guide surface in the first direction is H1, and the distance between the cold air inlet and the motor air outlet in the first direction is H2, H1: the range of H2 is 0.15 to 0.35, and in the range of the ratio, the contact area between the air flow and the heating wire is larger, and the heat exchange effect is better.

The wireless hair dryer that this embodiment provided still includes:

the air flow blown out from the cold air inlet flows out from the hot air inlet through the hot air outlet;

a release device 1560 disposed in the inner cylinder 1520, a release inlet of the release device 1560 communicating with the cool air inlet, and a curing tuyere 1516 of the release device 1560 communicating with the release inlet.

In the radial direction, the distance between the curing air outlet 1516 and the hot air outlet is D1, and D1 ranges from 15mm to 33mm.

The wireless hair dryer that this embodiment provided still includes: an air outlet panel 1517, wherein the air outlet panel 1517 is connected with the outer cylinder, the inner cylinder and the releasing device, and a cold air outlet, a hot air outlet and a curing air outlet 1516 are arranged on the air outlet panel 1517. The air outlet panel 1517 is a relatively important structural unit integrating air outlet, fixing and other functions.

Preferably, in order to make the semicircular plate 1320 butt against the heat conductive plate 1340 and seal, a first step 1325 is provided on the semicircular plate 1320, a second step 1342 is provided on the heat conductive plate 1340, and the first step 1325 is aligned with the second step 1342. The semicircular plate 1320 is fittingly connected to the second step 1342 of the thermally conductive plate 1340 by the first step 1325, which steps are correspondingly semicircular in shape, i.e. have the same curvature as the semicircular plate 1320. The semicircular plate 1320 is coupled to a second bayonet 1532 on the coupling plate 1530 via a second latch 1321. The semicircular plate 1320 is connected with the positioning clamping groove 1311 on the motor 1310 through the positioning clamping block 1323, and can fix the motor 1310 from the circumferential direction through the connection mode of the positioning clamping block 1323 and the positioning clamping groove 1311, so that the motor 1310 is prevented from rotating around the motor 1310, and meanwhile, the axial direction of the motor is also fixed, and the motor 1310 is prevented from moving towards the air outlet direction. Preferably, both sides of the semicircular plate 1320 are butted with the third clamping block 1334 on the semicircular tube 1336 through the third clamping opening 1322. Both sides of the semicircular plate 1320 are abutted with the positioning blocks 1337 on the semicircular tube 1336 through the positioning openings 1324, and the semicircular plate 1320 can be fixed in the motor axial direction by connecting the positioning buckles 1324 and the positioning blocks 1337.

The semicircle tube 1336 is connected to the fifth bayonet 1533 on the connection plate 1530 through the fifth latch 1333, thereby connecting and fixing the semicircle tube to the connection plate 1530. The edge of the fixing plate 1339 is connected with the first clamping block 1115 on the inner wall of the receiving cavity 1110 of the main chassis 1100 through the first clamping opening 1331, so that the fixing plate 1339, i.e., the fixing frame 1330, is fixed in the main chassis 1100.

The air inlet 1332 is provided with an arc notch 1335 at one side close to the semicircular plate 1320, the arc radiating part 1341 of the heat conducting plate 1340 is connected to the arc notch 1335 in an embedded manner, the arc notch 1335 is plugged, the gap between the semicircular plate 1320 and the fixing plate 1339 is also made up, the air inlet 1332 of the fixing plate 1339 forms a full-circle structure, the integral connection sealing effect of the air inlet 1332 and the motor fixing shell is ensured, and the heat of the heat conducting plate 1340 can be conducted out through the arc radiating part 1341 when the air enters the motor 1310 through the air inlet 1332. The central angle of the arc-shaped notch 1335 is not more than 180 degrees, so that the heat conductive plate 1340 can be conveniently installed in the arc-shaped notch 1335.

The heat conducting plate 1340 is correspondingly arranged between the MOS region 1351 and the fixing plate 1339, and the heat conducting plate is made of a heat conducting material.

To facilitate installation of the heat conductive plate 1340, the circumferential arc length of the heat conductive plate 1340 is smaller than the circumferential arc length of the semicircular plate 1320, and the central angle defined by the heat conductive plate 1340 should be within the central angle range defined by the semicircular plate 1320.

As shown in fig. 13-16, the air guide assembly 1400 is mounted on a mount 1330 of the motor assembly 1300, disposed around the outside of the air inlet 1332, and spaced from the air inlet 1332, forcing air to bypass the air guide assembly 1400 and then enter the motor 1310 through the air inlet 1332. Wind-guiding assembly 1400 includes wind-guiding stand 1410, filter screen 1420, display element 1430, cover plate 1440, and iron piece 1450, wherein:

the center of the air guide bracket 1410 is a wind shielding structure, and the filter screen 1420 is installed around the air guide bracket 1410 and surrounds the air inlet 1332; the middle part of the air guide bracket 1410 is provided with a mounting groove 1411, a display element 1430 is arranged in the mounting groove 1411, and the display element 1430 can display the working state of the motor, whether the filter screen is blocked, the air outlet temperature and the like; the mounting groove 1411 is provided with a plurality of legs 1412 inclined toward the front end in the circumferential direction, and fixedly connected to the edge of the fixing plate 1339 by the legs 1412; the legs 1412 are in a frame type structure to allow air flow to pass through the legs 1412 and into the air inlet 1332, and the filter screen 1420 is mounted on the legs 1412 so that the filter screen 1420 can filter the air flow; because the support legs 1412 are arranged in a manner of inclining towards the front end, the filter screen 1420 is designed to be matched with the structure of the support legs 1412, so that the area of the filter screen 1420 is larger; the filter screen 1420 surrounds the air inlet 1332 to form an inclined plane protruding outwards, wherein the air guiding surface 1221 of the air guiding ring 1220 points to the outer surface of the filter screen 1420, an obtuse included angle α is formed between the air guiding surface 1221 and the outer surface of the filter screen 1420, and an acute included angle β is formed between the air guiding surface 1221 and the axial direction of the motor assembly 1300 as shown in fig. 31; therefore, hair and sundries can be blown to the bottom of the filter screen along the inclined plane of the filter screen, the filter screen is prevented from being blocked, and the normal air inlet of the blower is ensured. Typically, the included angle α is no more than 150 degrees and the acute included angle β is between 15-60 degrees to ensure air intake and hair blowing toward the bottom of the filter screen.

The cover plate 1440 is fastened to the mounting groove 1411, thereby closing the display element 1430; the cover 1440 is connected to the fixing plate 1339 by fixing legs 1441; in order to avoid the fixed feet 1441 interfering with the air intake of the motor, the fixed feet 1441 are staggered with the support feet 1412 of the air guide bracket 1410, i.e. the fixed feet 1441 are arranged between two adjacent support feet 1412; the cover 1440 is made of a transparent material, so that the display element 1430 can display through the cover 1440, and a user can observe the display content of the display unit 1430, or the cover 1440 is provided with a hollow structure capable of exposing the display element 1430. The surface of the cover 1440 does not exceed the plane defined by the ends of the air intake assembly 1200. The cover 1440 is connected to the fixing plate 1339 by fixing legs 1441; preferably, the iron block 1450 is fixed to the fixing leg 1441 of the cover 1440. The surface of the cover 1440 does not exceed the plane defined by the end of the air intake assembly 1200, thereby protecting the display element from collision damage to the display element 1430. The edge of the cover 1440 is projected axially on the filter screen 1420 or outside the filter screen 1420, so that the air flow can be blown toward the filter screen 1420 as much as possible.

The iron block 1450 is mounted at the edge of the fixing plate 1339 and corresponds to the position of the magnetic block 1230 of the air inlet assembly 1200, so that the magnetic block 1230 can generate magnetic force to attract each other when approaching the iron block 1450, and the air inlet assembly 1200 is adsorbed and connected to the fixing plate 1339 under the action of the magnetic force; alternatively, the iron block 1450 is mounted on the fixing pin 1441 of the cap plate 1440, so that the iron block 1450 and the fixing pin 1441 can be coupled together to the fixing plate 1339 by a screw.

As shown in fig. 17-19, the air duct assembly 1500 adopts a dual air duct structure, a cold air duct 1580 is formed inside an inner cylinder 1520, a gap between the inner cylinder 1520 and an outer cylinder 1510 forms a hot air duct 1570, and the gap between the inner cylinder 1520 and the inner wall of the outer cylinder 1510 is equal in the circumferential direction, so that the air flow in the hot air duct 1570 is more uniform, the heat exchange effect with a heating wire 1550 is better, and the temperature of the air outlet is also more uniform. Wherein a heat generating component, typically a mica sheet 1540 and a heater 1550, is disposed within the hot air path. Specifically, the air duct assembly 1500 includes an outer cylinder 1510, an inner cylinder 1520, a connection plate 1530, mica sheets 1540, and a heating wire 1550, wherein a distance between the heating wire 1550 and the inner cylinder 1520 is greater than a distance between the heating wire 1550 and the outer cylinder 1510, so that the heating wire 1550 is closer to the outer cylinder 1510, and a contact effect between the heating wire 1550 and an air flow is better due to high air flow velocity at one side of the outer cylinder. A release device 1560 may be provided as required, the release device 1560 is installed at the center of the air outlet panel 1517 of the outer tub, and the periphery of the release device 1560 is a cool air outlet 1515.

The outer barrel 1510 is in a barrel-shaped structure, an air inlet end of the outer barrel 1510 is provided with an opening, an air outlet end of the outer barrel is provided with an air outlet panel 1517, the outer barrel is installed in the accommodating cavity 1110 of the main machine shell 1100, the front end edge of the outer barrel 1510 is in butt joint with a first positioning groove 1113 on the inner wall of the accommodating cavity 1110 through a first positioning notch 1511, a first guide groove 1512 is arranged on the outer wall of the outer barrel 1510 and is connected with a first guide bar 1114 in the accommodating cavity 1110 in a sliding connection mode, and the front end of the first guide groove 1512 is provided with a V-shaped flaring so that the V-shaped flaring plays a role in guiding when the V-shaped flaring is connected with the first guide bar 1114; an air outlet panel 1517 is arranged at the front end of the outer barrel 1510, an annular hot air outlet 1514 is arranged on the outer ring of the air outlet panel 1517, an annular cold air outlet 1515 is arranged on the air outlet panel 1517 at the inner side of the hot air outlet 1514, a release device 1560 is arranged at the center of the air outlet panel 1517, and a curing air port 1516 is arranged at the center. The release device 1560 can release anions or aromatherapy, and the release device 1560 is arranged in the cold air passage 1580 at the center, so that the problems of excessively quick release caused by high temperature and waste caused by continuous release after the blower is finished are avoided.

The outer cylinder 1510 is connected with a sixth bayonet 1531 on the connecting plate 1530 through a sixth clamping block 1513 on the outer wall, an annular sealing groove 1534 is further arranged outside the connecting plate 1530, the outer cylinder 1510 is arranged in the sealing groove 1534, a sealing ring is arranged in the sealing groove 1534 for sealing, and sealing connection is formed between the sealing ring and the outer cylinder 1510; the connection board 1530 is also connected with the semicircular board 1320 and the fixing frame 1330 of the motor assembly 1300, specifically, is connected with the second clamping block 1321 on the semicircular board 1320 through the second bayonet 1532, and is connected with the fifth clamping block 1333 of the fixing frame 1330 through the fifth bayonet 1533; the connection board 1530 is further provided with a return air structure 1535, the return air structure 1535 is located at the position of the motor air outlet, so that high-pressure air flow at the motor air outlet can be blown back to the motor air inlet from the outer side of the motor assembly through the return air structure 1535, the return air structure 1535 can be a notch or a hole structure, and when the notch is adopted, a return air hole is formed after the return air structure 1535 is in butt joint with the motor assembly 1300.

The inner cylinder 1520 is coaxially arranged in the outer cylinder 1510, a gap is reserved between the inner cylinder 1520 and the inner wall of the outer cylinder 1510, two ends of the inner cylinder 1520 are provided with openings, and the openings at the air outlet end are abutted against the air outlet panel 1517 of the outer cylinder 1510, so that a hot air channel 1570 is formed between the inner cylinder 1520 and the outer cylinder 1510, and a cold air channel 1580 is formed inside the inner cylinder 1520; a hot air outlet 1514 communicated with the hot air channel 1570 and a cold air outlet 1515 communicated with the cold air channel 1580 are arranged on the air outlet panel; the front end of the inner cylinder 1520 is provided with an annular rib 1523, and a ring groove 1518 is correspondingly provided on the inner surface of the air outlet panel 1517 of the outer cylinder 1510, and the annular rib 1523 is inserted into the ring groove 1518, thereby connecting the front end of the inner cylinder 1520 with the air outlet panel 1517 of the outer cylinder 1510. Six mica sheets 1540 are arranged between the inner cylinder 1520 and the outer cylinder 1510, a first inserting block 1541 is arranged on the inner side of the front end of the mica sheet 1540, a second inserting block 1542 is arranged on the inner side of the rear end of the mica sheet 1540, the first inserting block 1541 is inserted into a first inserting groove 1521 on the front end of the inner cylinder 1520, and the second inserting block 1542 is inserted into a second inserting groove 1522 on the rear end of the inner cylinder, so that the mica sheet 1540 is fixed on the inner cylinder 1520.

The inner surface of the air outlet panel 1517 is provided with a ring groove 1518; correspondingly, the air outlet end of the inner cylinder 1520 is provided with an annular rib 1523, and the annular rib 1523 is correspondingly connected in the annular groove 1518, so as to fix the inner cylinder 1520 on the air outlet panel 1517 of the outer cylinder 1510, ensure the mutual position determination between the inner cylinder 1520 and the outer cylinder 1510, and provide a support carrier for the fixed installation of the mica plate 1540 and the heating wire 1550.

Preferably, the outer side surface of the air outlet end of the inner cylinder 1520 is provided with an inclined surface inclined outwards to guide the air flow to the hot air outlet 1514, and the air flow is prevented from forming vortex at the connection position of the inner cylinder 1520 and the air outlet panel 1517, thereby reducing wind noise and improving air outlet efficiency.

The mica sheets 1540 have a plurality of the inner cylinder 1520 and the outer cylinder 1510 supported in the circumferential direction; a plurality of clamping grooves 1543 are further formed in the middle of the mica sheet 1540, and heating wires 1550 penetrate through the clamping grooves 1543, so that the heating wires are annularly arranged between the inner cylinder 1520 and the outer cylinder 1510; the width of the clamping groove 1543 is adapted to the width of the heating wire 1550, so that the heating wire 1550 can be embedded and installed in the clamping groove 1543; the clamping grooves 1543 on each mica sheet 1540 are arranged at equal intervals; correspondingly, the heating wires 1550 are wound around the mica sheet 1540 in a plurality of turns in an equidistant manner. The winding density of the heating wire 1550 can be adjusted through the design of the spacing of the clamping grooves 1543, and the installation depth of the heating wire 1550 and the installation radius of the whole heating wire 1550 can be controlled through the depth design of the clamping grooves 1543; the number of mica sheets 1540 may be plural, and the number of mica sheets 1540 in the present embodiment is six. Wherein the circumferential angle between two adjacent mica sheets 1540 is between 90 degrees and 160 degrees, and preferably 120 degrees.

The outer side edge of the mica sheet 1540 abuts against the inner wall of the outer tube 1510, so that the mica sheet 1540 is fixed from the outside by the outer tube 1510, and the mica sheet 1540 is prevented from shaking or loosening.

Two ends of the mica sheet 1540 are respectively connected with slots on the outer wall of the inner cylinder 1520 through inserting blocks; preferably, the slots are blind slots that do not extend through the outer wall of the inner barrel, thereby reducing heat exchange between the cold air passages 1580 inside the inner barrel 1520 and the hot air passages 1570 outside the inner barrel 1520 through the slots.

Preferably, a first insert 1541 is disposed at one end of the mica sheet 1540, a second insert 1542 is disposed at the other end, and correspondingly, a first slot 1521 and a second slot 1522 are disposed on the outer wall of the inner cylinder 1520, the first insert 1541 is connected in the first slot 1521, and the second insert 1542 is connected in the second slot 1522. Through the slot structural design at both ends, can make mica sheet 1540 fix in radial, axial and circumference, avoid mica sheet 1540 not hard up.

The heater 1550 adopts the surrounding type to arrange between inner tube 1520 and urceolus 1510 to support on mica sheet 1540, can support heater 1550 through mica sheet 1540 on the one hand, on the other hand makes heater 1550 can be more evenly distributed in the circumference, thereby also better to the heating effect of air current.

The outer part of the connecting plate 1530 is in sealing connection with the opening of the air inlet end of the outer barrel 1510, and the middle part is provided with an air hole 1536 which is connected with the air outlet of the motor; correspondingly, the opening of the air inlet end of the inner cylinder 1520 corresponds to the position of the air hole 1536 of the connection plate 1530 and maintains a distance, so that the air outlet of the motor can be simultaneously communicated with the hot air channel 1570 and the cold air channel 1580.

The inner wall of the wind hole 1536 is provided as an inner cone gradually expanding along the direction of the air flow, so that the air flow diverges conically along the inner cone; correspondingly, the opening of the air inlet end of the inner cylinder 1520 is directed toward the inner conical surface, and the air flow after being diverged can be split along the opening of the air inlet end of the inner cylinder 1520, wherein one part of the air flow enters the inner cylinder 1520, and the other part of the air flow enters between the inner cylinder 1520 and the outer cylinder 1510; the opening size of the inner cylinder 1520, the distance between the opening of the inner cylinder 1520 and the inner conical surface, and the taper size of the inner conical surface can be adjusted according to the split-flow requirement; the greater the slope of the inner cone, the greater the diverging effect on the airflow and the more pronounced the diverging effect, the smaller the opening of the inner barrel 1520, and the farther the opening is from the inner cone, the more pronounced the diverging effect; preferably, the slope of the inner conical surface is 10-30 degrees; further preferably, the slope of the inner conical surface is 15-20 degrees.

The connection plate 1530 is arranged at the air outlet end of the motor 1310, the middle part of the connection plate 1530 is connected with the fixing frame 1330, and the edge of the connection plate 1530 is fixedly connected with the inner wall of the main machine shell 1100; the connection board 1530, the motor 1310, the fixing frame 1330 and the main machine shell 1100 form a return air space 1360, and the main control board 1350 is positioned in the return air space 1360; and, a return air structure 1535 is provided on the sidewall of the connection plate 1530 downstream of the motor air outlet, so that a part of the air flow of the motor air outlet can enter the return air space 1360 through the return air structure 1535; a first wind hole 1352 is provided on the main control board 1350 in the MOS region 1351 to enable the airflow to pass through; a plurality of negative pressure air holes 1338 are provided around the air inlet 1332 of the fixing plate 1339, so that the return air space 1360 can be communicated with the air inlet of the motor 1310.

When the motor works, a return air structure 1535 on the connecting plate 1530 outside the motor air outlet flows a part of the return air back into the return air space 1360 and can blow to the MOS region on the main control board 1350, thereby cooling the heating element in the MOS region; then, the negative pressure air holes 1338 on the fixing plate 1339 are returned to the air inlet holes 1332 to form an air flow loop, and the heating element can be cooled before entering the hot air channel 1570, so that the normal operation of the blower is ensured, and the blower cannot be stopped due to overheat.

The blower provided by the utility model is formed by the connecting plate, the motor, the fixing frame and the main machine shell, the air return space 1360 is formed, the main control board is positioned in the air return space, and the corresponding air return structure is designed, so that the motor can split the air return air flow to cool the main control board in the working process.

The return air structure 1535 is a hole structure disposed inside the main control board 1350, or the return air structure 1535 is a notch structure disposed at an edge of the main control board 1350. The return air structure 1535 is typically small to avoid a large impact on the overall motor's blowing power.

Preferably, the main control board 1350 is a ring structure disposed between an inner wall of the main housing 1100 and a housing of the motor 1310.

The cross sections of the outer barrel 1510 and the inner barrel 1520 are both approximately regular triangle shapes, so that the cross section of the hot air channel 1570 between the two is also approximately regular triangle shapes; correspondingly, the heating wires 1550 in the hot air channel 1570 are also adapted to the cross-sectional shape of the hot air channel 1570, and 1 mica sheet is respectively arranged between the three top corners and the three sides of the outer barrel 1510 and the inner barrel 1520 to support the heating wires.

According to the wireless blower provided by the utility model, the inner cylinder, the outer cylinder and the heating wires are all designed in the regular triangle structure, so that the use quantity of mica sheets is reduced, and compared with the circular structure design with the same diameter, the length of the heating wires in the regular triangle structure is shorter, and the consumable is saved.

As shown in fig. 20 to 22, and in combination with fig. 28 to 29, a first connection assembly 1600 is provided in a connection cavity 1120 at the lower portion of the main body case 1100, and functions to be connected with a second connection assembly 2300 at the top of the handle 2000, thereby fixedly connecting the handle 2000 with the main body 1000, so that a battery 2210 in the handle 2000 can supply power to power-consuming parts such as a motor 1310, a main control board 1350, a display element 1430, a heating wire 1550, etc. in the main body 1000.

The first connection assembly 1600 includes a fixed block 1610, a slider 1620, and a connection circuit board 1630. Wherein:

the section of the fixing block 1610 is L-shaped, and is connected with the longitudinal guide ribs 1122 arranged in the connecting cavity 1120 in a matched manner through the notch 1611, so that the fixing block 1610 can be prevented from rotating in the connecting cavity 1120; meanwhile, a connecting block 1121 is further arranged in the connecting cavity 1120, and the top of the fixing block 1610 is connected with the connecting block 1121 through a screw so as to be fixed in the connecting cavity 1120; at least 1 sixth air inlet 1612 is arranged on the fixed block 1610, and the sixth air inlet 1612 can be communicated with the space on the upper side and the lower side of the fixed block 1610, so that air flow can enter the connecting cavity 1120 above the fixed block 1610 through the sixth air inlet 1612; the middle part of the fixing block 1610 is further provided with a vertically arranged, flat connector jack 1613, and the connector jack 1613 can allow the terminal connector 2320 of the second connection assembly 2300 to pass through, so that the terminal connector 2320 can be connected with the connection circuit board 1630; the side of the fixing block 1610 is further provided with a concave sliding portion 1614, the sliding block 1620 can be slidably connected to the sliding portion 1614, the sliding portion 1614 has a radial width, and a notch is formed on one side of the sliding portion 1614, so that the sliding block 1620 can slide out of the sliding portion 1614 and be inserted into the clamping position 2313 of the second connecting assembly 2300, thereby limiting the axial movement of the second connecting assembly 2300;

Slider 1620 is positioned between sliding portion 1614 of fixed block 1610 and the inner wall of connecting cavity 1120 and is capable of sliding along the circumferential direction so as to be capable of sliding into detent 2313 of second link assembly 2300; the sliding block 1620 comprises a sliding block 1621 and a shifting block 1623, wherein the sliding block 1621 is an arc-shaped sheet or a plane sheet as a whole, and a plurality of convex columns 1622 are arranged on the sliding block 1620 in order to reduce the friction force between the sliding block 1620 and the sliding part 1614 and the inner wall of the connecting cavity 1120; the shifting block 1623 is located outside the slider 1621 and is capable of being connected in the lateral chute 1123 of the connection cavity 1120, the length of the shifting block 1623 being smaller than the length of the lateral chute 1123 such that the shifting block 1623 is capable of sliding in the lateral chute 1123;

the connection wiring board 1630 is connected to the top of the fixing block 1610 and is horizontally disposed above the connector insertion hole 1613 so that the terminal connector 2320 of the second connection assembly 2300 can be connected to the connection wiring board 1630 after passing through the connector insertion hole 1613; in order to ensure the upper and lower air paths of the fixing block 1610 are communicated, the connection circuit board 1630 should avoid the sixth air inlet 1612 on the fixing block 1610.

Referring to fig. 1 and 23-29, the handle 2000 includes a battery case assembly 2100, a battery assembly 2200, and a second connection assembly 2300. Wherein the battery case assembly 2100 provides an integral housing to receive the battery assembly 2200 therein, and the second connection assembly 2300 is coupled to the top of the battery case assembly 2100 to enable the handle 2000 to be connected with the main body 1000 through the second connection assembly 2300.

Wherein, the connection board 1530, the motor 1310, the fixing frame 1330 and the main case 1100 form a return air space 1360, and the connection cavity 1120 is communicated with the return air space 1360 of the accommodating cavity 1110;

the handle 2000 includes a battery case assembly 2100, a second connection assembly 2300, and a battery assembly 2200: the battery pack 2200 is mounted in the battery case pack 2100, the battery pack 2200 includes a bracket and a battery 2210, and the battery 2210 is fixed to the bracket; the second connection assembly 2300 is connected on top of the battery assembly 2200, and the second connection assembly 2300 is connected with the first connection assembly 1600;

correspondingly, the air intake structures are provided on the supports of the gaps between the battery case assembly 2100 and the battery 2210 and/or the supports of the gaps between the battery 2110 and the inner wall of the battery case assembly 2100, the second connection assembly 2300 and the first connection assembly 1600, respectively, so that an air intake passage 2400 for cooling the battery 2210 is formed, and when the handle 2000 is connected with the main body 1000, the air intake passage 2400 communicates with the return air space 1360.

According to the wireless blower provided by the utility model, the air inlet structure is arranged on the handle and is communicated with the air return space 1360 in the main machine body 1000, so that in the working process of the motor, a part of air flow can be sucked into the air inlet of the motor through the handle, the effect of cooling the battery in the handle is achieved, and the working time of the battery is prolonged.

Since the main control board 1350 is located in the return air space 1360, and the main control board 1350 is a ring structure disposed between the inner wall of the main housing 1100 and the outer shell of the motor 1310; the main control board 1350 is provided with an air-passing structure penetrating through the surfaces of both sides, so that the main control board 1350 can be cooled;

preferably, the wind passing structure includes a second wind passing hole on the main control board 1350 or a wind passing notch 1353 disposed on the outer side or the inner side of the main control board 1350.

As shown in fig. 23 to 24, the battery case assembly 2100 includes a battery case 2110, a base plate 2120, and a power receiving piece 2130, the battery case 2110 having a cylindrical shape with a hollow space inside to enable the battery assembly 2200 to be fixedly mounted therein; a bottom plate 2120 is connected to the bottom of the battery case 2120 to encapsulate the bottom of the battery case 2120, the bottom plate 2120 and the battery case 2110 together fix the battery pack 2200 therein, and a plurality of first air inlet holes 2121 are provided in the bottom plate 2120 to allow air flow from the outside of the battery pack 2100 into the inside of the battery pack 2100; the tabs 2130 are mounted on the base plate 2120 and when the handle 2000 is installed on the base 3000, the tabs 2130 connect with conductive tabs in the socket of the base 3000 so that the battery assembly 2200 within the handle 2000 can be charged through the base 3000.

As shown in fig. 25 to 27, the battery assembly 2200 includes a bracket and a battery 2210, the battery 2210 is fixed on the bracket, and an air inlet structure which is conducted up and down is provided on the bracket at a position of a gap between the battery 2210 and an inner wall of the battery case 2110, so that the air enters the battery case assembly 2100 through a first air inlet 2121 on a bottom plate 2120 of the battery case assembly 2100, and further enters the main body 1000 through a fifth air inlet 2311 of the second connection assembly 2300 and a sixth air inlet 1612 of the first connection assembly 1600. Specifically, the support is formed by butt joint of a sectional structure, and comprises a bottom support 2220, a middle support 2230 and a top support 2240, wherein the bottom support 2220 is connected to the bottom of the middle support 2230, and the top support 2240 is connected to the top of the middle support 2230; the bottom bracket 2220 is provided with a second air inlet 2221 corresponding to the gap position, the middle bracket 2230 is provided with a third air inlet 2231 corresponding to the gap position, and the top bracket is provided with a fourth air inlet 2241 corresponding to the gap position.

As shown in fig. 28 to 29, the second connection assembly 2300 of the handle 2000 is inserted into the connection cavity 1120 of the main body 1100 and is connected with the first connection assembly 1600 of the main body 1000 by a lateral locking structure to fix the second connection assembly 2300 from the axial direction of the handle 2000; the second link assembly 2300 is coupled with the inner wall of the link cavity 1120 by a guide groove structure arranged along the axial direction of the handle 2000 to fix the second link assembly 2300 from the circumferential direction of the handle 2000. The first connecting component and the second connecting component are connected through the transverse tightening structure and are fixed in an auxiliary mode through the guide groove structure, so that the connecting structure between the handle and the main machine body is more stable, and the phenomenon of loosening can not occur after the handle is used for multiple times.

The second connection assembly 2300 includes a socket 2310 and a terminal tab 2320, and the terminal tab 2320 passes through a tab fixing hole 2312 on the socket 2310 so as to be in contact conduction with a connection wiring board 1630 on the first connection assembly 1600. In order to enable the air flow to enter the main body 1000 through the second connection assembly 2300, a fifth air inlet 2311 is further provided at the insertion block 2310, and the fifth air inlet 2311 corresponds to the position of the sixth air inlet 1612 at the fixing block 1610 of the first connection assembly 1600, thereby forming the air inlet channel 2400. The second connecting assembly 2300 is further provided with a locking portion 2313 on a side surface thereof, the locking portion forming a lateral receiving space, and when the second connecting assembly 2300 is inserted into the connecting cavity 1120 and is docked with the first connecting assembly 1600, the pulling block 1623 of the first connecting assembly 1600 is pushed laterally so that the sliding piece 1621 can be inserted into the locking portion 2313, thereby fixing the second connecting assembly 2300 in the connecting cavity 1120.

In the present utility model, the motor assembly 1300 and the battery assembly 2200 are integrated, and the center of gravity of the integrated body is located on the axis of the handle in the handle 2000; and the motor assembly 1300 is located on the handle axis of the handle 2000.

Through the structural design of the utility model, the motor component and the battery component are integrally arranged on the axis of the handle, so that when the handle is held to blow, the position of the handle held by the hand is just the center of gravity of the motor, the hand is held more comfortably, and the problem of heavy weight cannot be caused.

The axis of the battery pack assembly 2100 passes through a position between 1/3 and 2/3 of the motor assembly 1300 to make it easier for the center of the motor assembly 1300 to be located on the axis of the handle 2000; preferably, the axis of motor housing assembly 2100 intersects the axis of motor assembly 1300, thereby avoiding the center of gravity of motor assembly 1300 from deviating from the plane formed by the intersection of the two axes.

The included angle between the axis of the handle 2000 and the axis of the motor assembly 1300 is 75-105 degrees, so that the shapes of the handle 2000 and the main body 1000 can be adaptively adjusted, and the hand-held blowing is more facilitated. More preferably, the battery compartment assembly 2100 of the handle 2000 forms a 90 degree angle with the axial direction of the motor assembly 1300 of the main body 1000.

Because the charger is arranged in the base 3000; the base 3000 is capable of charging a battery within the handle 2000 when the bottom of the handle 2000 is inserted into an interface attached to the base 3000. And, when the handle 2000 is inserted into the base 3000 to charge, the center of gravity is projected vertically downward into the interface on the base 3000, so that the main body 1000 can be prevented from being deviated or inclined to one side; the handle 2000 is vertically connected to the interface of the base 3000.

Note that the basic principles and main features of the present utility model and advantages of the present utility model are shown and described above. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A wireless blower comprising a main body (1000), the main body (1000) comprising a main housing (1100), the wireless blower comprising:

the motor is positioned in the main machine shell (1100) and comprises a motor air outlet and a motor outer cover;

an outer cylinder (1510) with an opening at the air inlet end, wherein the opening is a hot air inlet;

an inner cylinder (1520) coaxially arranged in the outer cylinder (1510) and keeping a gap with the inner wall of the outer cylinder (1510), wherein openings are arranged at two ends of the inner cylinder (1520), the opening at an air inlet end is a cold air inlet, and the opening at an air outlet end is a cold air outlet, so that a hot air channel (1570) is formed between the inner cylinder (1520) and the outer cylinder (1510), and a cold air channel (1580) is formed inside the inner cylinder (1520);

the connecting plate (1530) is communicated with the motor air outlet, one end, close to the motor air outlet, of the connecting plate is connected with the motor outer cover, the other end of the connecting plate is connected with the outer cylinder (1510), the motor air outlet and the inner cylinder (1520) are sequentially arranged along a first direction, and orthographic projection of an axis of the motor air outlet in the first direction falls into the inner cylinder (1520); the cold air inlet corresponds to the motor air outlet in position and keeps a distance, so that the motor air outlet can be simultaneously communicated with the hot air channel (1570) and the cold air channel (1580).

2. The wireless blower of claim 1, wherein the motor air outlet and the inner barrel (1520) are sequentially arranged along a first direction, and a first overlap area is greater than a second overlap area, the first overlap area being: the front projection of the motor air outlet in the first direction and the superposition area of the front projection of the cold air inlet in the first direction are the following: and the superposition area of the orthographic projection of the motor air outlet in the first direction and the orthographic projection of the hot air inlet in the first direction.

3. A cordless hair dryer according to claim 1, wherein,

the inner wall of the connecting plate (1530) comprises an inner conical surface gradually expanding along the direction of the air flow and a hot air guiding surface connected with the inner conical surface, the air flow blown out from the air outlet of the motor is guided to flow into the cold air inlet and the hot air inlet through the inner conical surface, and part of the air flow flowing into the hot air inlet further flows out through the hot air guiding surface.

4. A wireless blower as set forth in claim 3, further comprising:

the cold air inlet is directed to the inner conical surface.

5. A wireless blower as set forth in claim 3, further comprising:

the inclination of the inner conical surface is 10-30 degrees.

6. The wireless blower of claim 5, further comprising:

the inclination of the inner conical surface is 15-20 degrees.

7. A wireless blower as set forth in claim 3, further comprising:

8. The wireless blower of claim 1, further comprising:

and a release device (1560) disposed in the inner cylinder (1520), wherein a release inlet of the release device (1560) is communicated with the cold air inlet, and a curing tuyere (1516) of the release device (1560) is communicated with the release inlet.

9. The wireless blower of claim 8, further comprising:

In the radial direction, the distance between the curing tuyere (1516) and the hot air outlet is D1, and D1 ranges from 15mm to 33mm.

10. The wireless blower of claim 8, further comprising:

further comprises: the air outlet panel (1517), the air outlet panel (1517) is connected with the outer cylinder, the inner cylinder and the release device, and the cold air outlet, the hot air outlet and the maintenance air outlet (1516) are arranged on the air outlet panel (1517).

11. A cordless hair dryer according to claim 1, wherein,

the outer cylinder (1510) is connected with the connecting plate (1530) through a bayonet clamping block structure.

12. The wireless blower of claim 11, further comprising:

a sixth clamping block (1513) is arranged at an opening of the air inlet end of the outer barrel (1510), and correspondingly, a sixth bayonet (1531) corresponding to the sixth clamping block (1513) is arranged on the connecting plate (1530).

13. The wireless blower of claim 11, further comprising:

the outside of the connecting plate (1530) is also provided with an annular sealing groove (1534), the outer cylinder (1510) is arranged in the sealing groove (1534), and a sealing ring is arranged in the sealing groove (1534) for sealing.

14. A cordless hair dryer according to claim 1, wherein,

still include mica sheet (1540), the outside edge of mica sheet (1540) is equipped with a plurality of draw-in groove (1543) of evenly arranging, the width of draw-in groove (1543) and the width adaptation of heater (1550), so that heater (1550) can be embedded to install in draw-in groove (1543).

15. The wireless blower of claim 14, further comprising:

the outer side edge of the mica sheet (1540) is abutted against the inner wall of the outer cylinder (1510);

and/or two ends of the mica sheet (1540) are respectively connected with the slots on the outer wall of the inner cylinder (1520) through the inserting blocks.

16. The cordless dryer of claim 15, wherein said slot is a blind slot that does not extend through an outer wall of said inner barrel.

17. The wireless blower of claim 15, further comprising:

one end of the mica sheet (1540) is provided with a first inserting block (1541), the other end of the mica sheet is provided with a second inserting block (1542), a first inserting groove (1521) and a second inserting groove (1522) are correspondingly arranged on the outer wall of the inner cylinder (1520), the first inserting block (1541) is connected in the first inserting groove (1521), and the second inserting block (1542) is connected in the second inserting groove (1522).

18. A cordless hair dryer according to claim 1, wherein,

an air outlet panel (1517) is arranged at the air outlet end of the outer barrel (1510), and an annular groove (1518) is arranged on the inner surface of the air outlet panel (1517); correspondingly, an annular rib (1523) is arranged at the air outlet end of the inner cylinder (1520), and the annular rib (1523) is correspondingly connected in the annular groove (1518) so as to fix the inner cylinder (1520) on an air outlet panel (1517) of the outer cylinder (1510).

19. The wireless blower of claim 18, further comprising:

the outer side surface of the air outlet end of the inner cylinder (1520) is provided with an inclined surface which inclines outwards so as to guide the air flow to the hot air outlet (1514).

20. A cordless hair dryer according to claim 1, wherein,

the main case (1100) comprises a containing cavity (1110), a connecting cavity (1120) and a sealing ring (1130), wherein the containing cavity (1110) is communicated with the connecting cavity (1120), and the connecting cavity (1120) is positioned at the lower part of the containing cavity (1110); an air duct assembly (1500) and a motor assembly (1300) are arranged in the accommodating cavity (1110), an air inlet assembly (1200) and an air guide assembly (1400) are arranged at the inlet end of the motor assembly (1300), the air duct assembly (1500) is communicated with the outlet of the motor assembly (1300), a first connecting assembly (1600) is arranged in the connecting cavity (1120), and the air duct assembly is detachably connected with the handle (2000) through the first connecting assembly (1600); at the air inlet end of the main machine shell (1100), the main machine shell is in butt joint with and sealed with a rear cover (1210) of the air inlet assembly (1200) through a sealing ring (1130).

21. The wireless blower of claim 20, further comprising:

the inner wall of the accommodating cavity (1110) is provided with a first positioning groove (1113) and a first guide strip (1114) close to the air outlet end, and the outer cylinder (1510) of the air duct assembly (1500) is correspondingly connected with the first positioning groove (1113) and the first guide strip (1114) through a first positioning notch (1511) and a first guide groove (1512).

22. The wireless blower of claim 20, further comprising:

a first clamping block (1115) is arranged on the inner wall of the accommodating cavity (1110) close to the air inlet end, and a fixing frame (1330) of the motor assembly (1300) is connected with the first clamping block (1115) through a first bayonet (1331).

23. The wireless blower of claim 20, further comprising:

the inner wall of the connecting cavity (1120) is provided with a guide rib (1122), and the fixing block (1610) of the first connecting component (1600) is connected with the guide rib (1122) through a notch groove (1611).

24. The wireless blower of claim 20, wherein the blower is configured to receive a signal from a user,

the inner wall of the connecting cavity (1120) is also provided with a connecting block (1121), and the fixed block (1610) of the first connecting component (1600) is fixedly connected with the connecting block (1121).

25. The wireless blower of claim 20, wherein the blower is configured to receive a signal from a user,

the side wall of the connecting cavity (1120) is also provided with a transverse sliding groove (1123), and the sliding block (1620) of the first connecting component (1600) is connected in the transverse sliding groove (1123) through a shifting block (1623).