CN220667920U - Fan frame structure - Google Patents

Abstract

The present application provides a fan frame structure. The fan frame structure comprises a barrel body and a fixing plate. The barrel body comprises a first end, a second end and a hollow part, wherein the first end and the second end are opposite to each other, and the hollow part is communicated between the first end and the second end and is used for accommodating a fan motor in a combined mode. The fixing plate includes a plurality of splicing units, wherein adjacent ones of the plurality of splicing units are connected to each other, and the plurality of splicing units encircle the tub and connect the first end or the second end.

Description

Fan frame structure

Technical Field

The present disclosure relates to a fan structure, and more particularly to a fan frame structure, which is capable of realizing mass production of the fan frame structure by a modular splicing structure, thereby reducing production cost, simplifying overall assembly process, improving overall structure strength and accommodation height, and increasing convenience of use.

Background

In the conventional axial flow fan structure, a motor driving the fan blades is assembled with the fan frame through a protective grill. The overall assembly process is complex. In addition, the overall height of the fan is limited by the assembled height of the outer tub of the fan frame and the protective grille. And the problem of difficult disassembly or replacement exists between the protection grid and the fan frame. On the other hand, the traditional fan frame has a larger outer barrel body structure, and the huge structure is not easy to manufacture by a casting mould mode, so that the traditional fan frame has higher production cost. Furthermore, the outer wall ring structure of the fan frame needs to be further combined with the fixed lower plate for use, which also makes the traditional fan frame unfavorable for mass production application.

In view of this, it is necessary to provide a fan frame structure, which realizes the mass production of the fan frame structure through the modular splicing structure, thereby being beneficial to reducing the production cost, simplifying the whole assembly process, improving the strength and the accommodation height of the whole structure and increasing the convenience of use.

Disclosure of Invention

An object of the present case is to provide a fan frame structure, realizes the mass production manufacturing of fan frame structure through modularization mosaic structure, helps reducing manufacturing cost, simplifies whole equipment process simultaneously, improves overall structure intensity and accommodation height, increases the convenience of use.

Another object of the present utility model is to provide a fan frame structure. The fixing plate of the fan frame structure or/and the barrel body are combined through the modularized equal-division splicing structure, so that mass production and manufacturing are facilitated, and the production cost is reduced. The modularized equal-split splicing structure is convenient for molding and mass production, can be assembled in a welding, screw locking or clamping locking mode, and simplifies the whole assembly process. On the other hand, the fan motor is connected to the inner periphery of the barrel body through the detachable support frame, besides being convenient for assembly, the support frame formed by stamping or sheet metal can be adjusted in size, shape and number according to the size specification of the fan motor, so that the fan motor assemblies with different size specifications are accommodated in the fan frame structure, and the practicability of the fan frame structure is improved. In addition, the fan motor is connected to the inner periphery of the barrel body through the supporting frame, so that the overall structural strength and the accommodating height are improved, the fan motor and the supporting frame do not exceed the range of the barrel body, the detachable arrangement of the protective net is facilitated, the protective net can be easily detached from the barrel body or changed, and the assembly or the operation of the fan motor is not affected. Of course, the fan frame structure is assembled by the modularized equal split splicing structure, and the materials and the forming method of the fixing plate and the barrel body can be modulated according to practical application, so that the assembly process is simplified, the structural strength is improved, the locking platform structure of the barrel body connecting support frame can be further enhanced in the mass production process, or the characteristics of the air outlet side inclined section or the air inlet section are added, and the fan frame structure is applied in multiple modes.

In order to achieve the above-mentioned purpose, the present disclosure provides a fan frame structure, which includes a tub and a fixing plate. The barrel body comprises a first end, a second end and a hollow part, wherein the first end and the second end are opposite to each other, and the hollow part is communicated between the first end and the second end and is used for accommodating the fan motor in a combined mode. The fixing plate includes a plurality of splice units, wherein adjacent ones of the plurality of splice units are connected to each other. Wherein a plurality of splice units encircle the barrel body and are connected with the first end or the second end.

According to one embodiment, any two adjacent splice units have a first joint surface and are connected by a welding, a screw locking or a clamping locking manner.

According to one embodiment, a second joint surface is formed between each of the plurality of splicing units and the barrel body, and the splicing units are connected through welding, screw locking or clamping locking.

According to one embodiment of the present disclosure, the plurality of splice units have the same size and shape.

According to one embodiment of the present disclosure, the bowl is formed as a circumferential wall by a metal rolling process.

According to one embodiment of the present disclosure, the tub includes a plurality of locking platforms, and the fan motor is further connected to the plurality of locking platforms through a plurality of supporting frames, each of the plurality of supporting frames includes a locking end and a fixing end opposite to each other, the locking end is detachably connected to a corresponding one of the plurality of locking platforms, and the fixing end is detachably connected to the fan motor.

According to one embodiment, the fixing ends of the supporting frames are connected to form a ring surface.

According to one embodiment, each of the plurality of support frames has the same size and shape and is formed by a stamping or a sheet metal method.

According to one embodiment, the hollow portion penetrates through the first end and the second end along an axial direction, the plurality of support frames and the fan motor are shielded by the barrel body in a radial view direction, and the plurality of support frames and the fan motor are accommodated in the hollow portion and do not exceed the first end or the second end.

In order to achieve the above objective, the present disclosure further provides a fan frame structure, which includes a plurality of splice ring walls and a plurality of splice units. The adjacent one of the splicing annular walls is connected with each other to form a barrel body, the barrel body comprises a first end, a second end and a hollow part, the first end and the second end are opposite to each other, and the hollow part is communicated between the first end and the second end and is used for accommodating a fan motor in a combined mode. The adjacent splicing units are connected with each other to form a fixed plate which surrounds the barrel body and is connected with the first end or the second end, and the splicing units and the splicing annular walls are connected in pairs.

According to one embodiment of the present disclosure, each pair of the plurality of splice ring walls and the plurality of splice units forms an integral structure by a plastic molding method.

According to one embodiment of the present disclosure, a pair of locking surfaces are provided between the plurality of splicing annular walls and two adjacent pairs of the plurality of splicing units, and the plurality of splicing annular walls and two adjacent pairs of the plurality of splicing units are connected by a screw locking manner or a clamping locking manner.

In order to achieve the above-mentioned object, the present disclosure further provides a fan frame structure, which includes a tub and a fixing plate. The ladle body comprises an air outlet, an air inlet and a hollow part, wherein the air outlet and the air inlet are arranged at two ends of the ladle body opposite to each other, and the hollow part is communicated between the air inlet and the air outlet. The fixing plate comprises a plurality of splicing units, wherein adjacent ones of the splicing units are connected with each other, and the splicing units encircle the barrel body and are arranged adjacent to the air outlet or the air inlet.

According to an embodiment of the present disclosure, the barrel includes a first air inlet section, a second air inlet section, a parallel section, and an air outlet side inclined section sequentially from the air inlet to the air outlet, wherein the first air inlet section has a first radius, the second air inlet section has a second radius, and the first radius is smaller than the second radius.

According to an embodiment of the present disclosure, the fan frame structure further includes a protection net detachably disposed outside the air outlet, wherein the protection net and the barrel body are fixed by a locking manner.

According to one embodiment of the present disclosure, the hollow portion of the tub is configured to accommodate a fan motor, and a separation distance is maintained between the fan motor and the protection net.

Drawings

FIG. 1 is a diagram showing the structure of a fan frame in combination with a fan motor according to a first embodiment of the present utility model;

FIG. 2 is an exploded view showing the fan frame structure of the first embodiment in combination with a fan motor;

FIG. 3 is a cross-sectional view of a fan frame structure in combination with a fan motor according to a first embodiment of the present disclosure;

FIG. 4 is an enlarged view revealing region P1 of FIG. 3;

FIG. 5 is an enlarged view revealing region P2 of FIG. 3;

FIG. 6 is an enlarged view revealing region P3 of FIG. 3;

FIG. 7 is an exploded view showing the fan frame structure of the first embodiment in combination with the supporting frame;

FIG. 8 is a view showing the structure of the fan frame combined with the supporting frame according to the first embodiment of the present utility model;

FIG. 9 is a view showing the structure of the fan frame combined with another supporting frame according to the first embodiment of the present utility model;

FIG. 10 is a view showing the construction of the fan frame structure of the second embodiment of the present utility model;

FIG. 11 is an exploded view of a fan frame structure according to a second embodiment of the present disclosure;

FIG. 12 is a view showing the construction of the fan frame structure according to the third embodiment of the present utility model;

FIG. 13 is an exploded view of a fan frame structure according to a third embodiment of the present disclosure;

FIG. 14 is a view showing the construction of the fan frame structure of the fourth embodiment of the present utility model;

FIG. 15 is an exploded view of a fan frame structure according to a fourth embodiment of the present disclosure;

FIG. 16 is a diagram showing the construction of a fan frame structure in combination with a fan motor according to a fifth embodiment of the present utility model;

FIG. 17 is an exploded view of a fan frame structure in combination with a fan motor according to a fifth embodiment of the present disclosure;

fig. 18 is an exploded view of a protective netting according to a fifth embodiment of the present disclosure.

[ symbolic description ]

1. 1a: fan with fan body

2. 2a, 2b, 2c: fan frame structure

20. 20a, 20b: barrel body

201: first end

202: second end

203: hollow part

204: second engagement hole

205: gap of

21: annular wall

21a, 21b, 21c, 21d: splice ring wall

211: first wind inlet section

212: second wind inlet section

213: parallel sections

214: air outlet side inclined section

22. 22a, 22b, 22c: fixing plate

221. 222, 223, 224, 225, 226, 227, 228: splice unit

23: air inlet

24: air outlet

25: locking platform 251: second locking hole

26: locking element

3: fan motor

31: fan blade

32: second fixing hole

4. 4a: supporting frame

41: locking end

411: first locking hole

42: connecting arm

43: fixed end

430: annular surface

431: first fixing hole

5. 5a: protective net

51: first engagement hole

52: additional annular wall

521. 522: splice ring wall

531. 532: splice connector

G: distance of separation

P1, P2, P3: region(s)

S1, S2 and S3: bonding surface

Detailed Description

Some exemplary embodiments that exhibit the features and advantages of the present disclosure are described in detail in the following description. It will be understood that various changes can be made in the above-described embodiments without departing from the scope of the utility model, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive. For example, if the disclosure below describes disposing a first feature on or over a second feature, it is intended to include embodiments in which the first feature is disposed in direct contact with the second feature, as well as embodiments in which additional features may be disposed between the first feature and the second feature such that the first feature and the second feature may not be in direct contact. In addition, various embodiments of the present disclosure may use repeated reference characters and/or marks. These repetition are for the purpose of simplicity and clarity and do not in itself dictate a relationship between the various embodiments and/or configurations of the depicted items. Furthermore, spatially relative terms, such as "top," "bottom," "upper," "lower," and the like, may be used for convenience in describing the relationship of one component or feature to another component(s) or feature(s) in the drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors of the spatially relative descriptors used herein interpreted accordingly. Further, when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the disclosure are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. In addition, it is to be understood that, although the terms "first," "second," "third," etc. may be used in the claims to describe various elements, these elements should not be limited by these terms, and that these elements described correspondingly in the embodiments are represented by different reference numerals. These terms are used to distinguish one element from another. For example: a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of the embodiments.

Referring to fig. 1 to 6, a fan structure formed by combining a fan frame structure and a fan motor according to a first embodiment of the present utility model is disclosed. The present disclosure provides a fan frame structure 2 and a fan motor 3 to form a fan 1. In the present embodiment, the fan frame structure 2 includes a tub 20 and a fixing plate 22. The bowl 20 may be, for example and without limitation, a metal roll-up formed into a ring wall 21 including a first end 201, a second end 202, and a hollow 203. The first end 201 and the second end 202 are opposite to each other, and the hollow portion 203 is connected between the first end 201 and the second end 202 and is configured to accommodate the fan motor 3. The fixing plate 22 includes a plurality of splice units (splice units) 221, 222, 223, 224, which are composed of quarters. The plurality of stitching units 221, 222, 223, 224 have the same size and shape. Wherein adjacent ones of the plurality of splice units 221, 222, 223, 224 are connected to each other to surround the outer circumference of the tub 20. In the present embodiment, any two adjacent splicing units 221, 222, 223, 224 have a first joint surface S1, and are connected by a welding, a screw locking or a snap locking manner. In addition, each of the plurality of splicing units 221, 222, 223, 224 has a second joint surface S2 with the outer periphery of the tub 20, and is connected by a welding, a screw locking or a snap locking manner. The fixing plate 22 is formed to be coupled to the tub 20 with the second coupling surface S2 and serves as a medium for fixing the fan 1 to the application end. The shape of the fixing plate 22 is not limited in this case.

It should be noted that, in the present embodiment, the fixing plate 22 of the fan frame structure 2 is combined by the modular equal split joint structure (splicing structure), which is conducive to mass production and manufacturing and reduces the production cost. In the present embodiment, the plurality of splicing units 221, 222, 223, 224 have the same size and shape, and can be formed by stamping or casting with a single die, so that the expensive manufacturing cost caused by using a large-sized tool is avoided, and the production cost is effectively reduced. The modular equal split units 221, 222, 223, 224 can be assembled with the barrel body 20 by adopting welding, screw locking or clamping locking after mass production and forming, so that the integral assembly process is simplified. Of course, the modular equal division number of the plurality of splicing units 221, 222, 223, 224 can be modulated according to the practical application requirement, and the convenience of assembling the plurality of splicing units 221, 222, 223, 224 with the barrel body 20 is not affected.

Please refer to fig. 1 to 8. In this embodiment, the fan frame structure 2 further incorporates a plurality of supporting frames 4 for fixing the fan motor 3. Wherein a plurality of support frames 4 are detachably connected between the fan motor 3 and the tub 20. The tub 20 includes a plurality of locking platforms 25, which are equidistantly disposed around the inner periphery of the tub 20, and the fan motor 3 is connected to the plurality of locking platforms 25 through a plurality of supporting frames 4, so that the fan motor 3 and the fan blades 31 can be accommodated in the hollow portion 203. In this embodiment, each of the plurality of support frames 4 includes a locking end 41, a connecting arm 42 and a fixing end 43, wherein the locking end 41 and the fixing end 43 are opposite to each other, the locking end 41 is detachably connected to a corresponding one of the plurality of locking platforms 25, and the fixing end 43 is detachably connected to the fan motor 3. In the present embodiment, the locking end 41 has a first locking hole 411, the locking platform 25 has a second locking hole 251, and the first locking hole 411 and the second locking hole 251 are spatially opposite to each other. The connection of the locking end 41 to the locking platform 25 may be achieved by means of a first locking hole 411 and a second locking hole 251, for example by means of screw locking elements (not shown). In addition, the fixing end 43 has a first fixing hole 431, the fan motor 3 has a second fixing hole 32, and the first fixing hole 431 and the second fixing hole 32 are spatially opposite to each other. The connection of the fixing end 43 to the fan motor 3 may be achieved by a first fixing hole 431 and a second fixing hole 32, for example, by a screw-type locking element (not shown). In the present embodiment, each of the plurality of supporting frames 4 has the same size and shape, and the connecting arm 42 connects the fan motor 3 and the tub 20 to provide a sufficient supporting force to support the fan motor 3 and the fan blade 31. Of course, the number, type and size of the connecting arms 42 may be modified according to the actual application requirements. It should be noted that, the fan motor 3 is connected to the inner periphery of the tub 20 through a plurality of detachable support frames 4, and since each of the plurality of support frames 4 has the same size and shape, mass production can be performed by a stamping or a sheet metal manner, besides being convenient for assembly and maintenance replacement, the support frames 4 formed by stamping or sheet metal can be adjusted in size, shape and number according to the size specification of the fan motor 3, so that the fan motor 3 with different size specifications can be assembled and accommodated in the fan frame structure 2, thereby improving the practicability of the fan frame structure 2.

In one embodiment, as shown in fig. 9, the fixing ends 43 of the supporting frames 4a are further connected to form an annular surface 430, so as to strengthen the structural supporting force, and make the supporting frames 4a support the fan motor 3 more stably (see fig. 3). Furthermore, the fan motor 3 is connected to the inner periphery of the tub 20 through the supporting frame 4a, and the accommodating height of the fan motor 3 relative to the tub 20 can be adjusted Ma Shanma, so that the fan motor 3 and the supporting frame 4a are not out of the range of the first end 201 and the second end 202 when accommodated in the hollow portion 203. Of course, the present utility model is not limited thereto.

Please refer to fig. 1 to 6. In the present embodiment, the hollow portion 203 of the fan frame structure 2 penetrates the first end 201 and the second end 202 and forms an air inlet 23 and an air outlet 24 respectively. In the present embodiment, the plurality of splicing units 221, 222, 223, 224 are disposed adjacent to the air inlet 23 of the first end 201, that is, the plurality of splicing units 221, 222, 223, 224 are sequentially connected to the first joint surface S1, and the second joint surface S2 surrounds the outer periphery of the first end 201 of the tub 20, so that the fixing plate 22 is connected to the bottom of the tub 20 adjacent to the air inlet 23. In other embodiments, the fixing plate 22 formed by sequentially connecting the plurality of splicing units 221, 222, 223, 224 may be, for example, sleeved on the middle section or the top of the barrel 20 to provide different fixing end applications, which is not limited in this case. In the present embodiment, the annular wall 21 formed by the tub 20 sequentially includes a first air inlet section 211, a second air inlet section 212, a parallel section 213 and an air outlet side inclined section 214 from the first end 201 to the second end 202. The first air inlet section 211 has a first radius, and the second air inlet section 212 has a second radius, wherein the first radius is smaller than the second radius, so as to provide smooth air flow guiding at the air inlet 23. In addition, the air-out side inclined section 214 also helps to smooth out the air. The present disclosure is not limited thereto.

In addition, in the present embodiment, the fan frame structure 2 further includes a protection net 5 detachably disposed outside the air outlet 24 of the second end 202. Wherein the protection net 5 and the second end 202 of the tub 20 may be fixed by, for example, but not limited to, locking. In this embodiment, the protection net 5 has a first engagement hole 51, and the second end 202 of the tub 20 has a second engagement hole 204, and the first engagement hole 51 and the second engagement hole 204 are spatially opposite to each other. The protection net 5 is detachably disposed at the air outlet 24 of the second end 202 of the tub 20 by being engaged with the first engagement hole 51 and the second engagement hole 204 by a locking member (not shown) such as a bolt.

In this embodiment, a gap 205 is further provided between the second end 202 of the tub 20 and the fan motor 3, so that a gap distance G is maintained between the outer protection net 5 disposed at the second end 202 and the fan motor 3 in the hollow portion 203. It should be noted that, in the present embodiment, the hollow portion 203 of the tub 20 penetrates the first end 201 and the second end 202 along an axial direction (i.e. the axial direction of the fan motor 3), and the plurality of support frames 4 and the fan motor 3 are shielded from the tub 20 in a radial direction, so that the hollow portion 203 does not exceed the first end 201 or the second end 202. In other words, the fan motor 3 is connected to the inner periphery of the tub 20 through the supporting frame 4, which is helpful for improving the overall structural strength and the accommodation height, so that the fan motor 3 and the supporting frame 4 are not disposed beyond the tub 20, which is also beneficial for the detachable arrangement of the protection net 5, and the protection net 5 can be easily detached from the tub 20 or modulated, without affecting the assembly or operation of the fan motor 3. Of course, the present utility model is not limited thereto.

Fig. 10 and 11 disclose a fan frame structure according to a second embodiment of the present disclosure. In the present embodiment, the fan frame structure 2a is similar to the fan frame structure 2 shown in fig. 1 to 8, and the same reference numerals refer to the same elements, structures and functions, and are not repeated herein. In the present embodiment, the tub 20 and the fixing plate 22a of the fan frame structure 2a are both composed of, for example, metal. The tub 20 is formed as a single-piece annular wall 21, for example, by a metal roll, and the fixing plate 22a is formed by two equally divided metal-punched splice units 221, 222, for example. Each of the splicing units 221, 222 is symmetrically semi-annular, and two first joint surfaces S1 are connected by welding and surround the tub 20 to form a second joint surface S2 connecting the tub 20 and the fixing plate 22a. The connection of the second joint surface S2 may be, for example, by welding or a snap-fit manner, which is not limited in this case. In an embodiment, the tub 20 and the fixing plate 22a of the fan frame structure 2a may also be made of plastic, but not limited thereto, by screw locking. It should be noted that, in other embodiments, when the fixing plate 22a is formed by at least two split units 221, 222, for example, the expensive manufacturing cost caused by using a large-sized tool can be avoided, the production cost can be reduced, and the convenience of assembling the fixing plate 22a to the tub 20 can be realized. Of course, the shape of the fixing plate 22a and the number of the modular equally divided splicing units 221, 222 can be adjusted according to the practical application requirements, and the present utility model is not limited thereto.

Fig. 12 and 13 disclose a fan frame structure according to a third embodiment of the present disclosure. In the present embodiment, the fan frame structure 2b is similar to the fan frame structure 2 shown in fig. 1 to 8, and the same reference numerals refer to the same elements, structures and functions, and are not repeated herein. In this embodiment, the tub 20a and the fixing plate 22b of the fan frame structure 2b are all spliced. The tub 20a includes a plurality of splice ring walls 21a, 21b spatially opposing a plurality of splice units 225, 226 of the fixed plate 22b. The plurality of splice ring walls 21a, 21b are provided in pairs with the plurality of splice units 225, 226. In the present embodiment, the tub 20a includes two split joint annular walls 21a and 21b, and the fixing plate 22b includes two split joint units 225 and 226. Wherein the pairs of splice ring walls 21a, 21b and splice units 225, 226 can be formed as a unitary structure by a plastic molding process. Namely, the splice ring wall 21a and the splice unit 225 form an integral structure; the splice ring wall 21b and the splice unit 226 constitute an integral structure. The two integrated structures are symmetrical and have the same structure, and can be molded by plastic through a single tool, and then are combined into the fan frame structure 2b through a screw locking or clamping locking mode. The plurality of splice ring walls 21a, 21b and the corresponding plurality of splice units 225, 226 sequentially connect the two opposite lock engagement surfaces S3 by the locking member 26 to form the tub 20a and the fixing plate 22b.

Fig. 14 and 15 disclose a fan frame structure according to a fourth embodiment of the present disclosure. In the present embodiment, the fan frame structure 2c is similar to the fan frame structure 2b shown in fig. 12 to 13, and the same reference numerals refer to the same elements, structures and functions, and are not repeated herein. In this embodiment, the tub 20b and the fixing plate 22c of the fan frame structure 2c are all spliced. The tub 20b includes four equally divided splice ring walls 21a, 21b, 21c, 21d. The fixed plate 22c includes four equally divided splice units 225, 226, 227, 228. The quarter splice ring walls 21a, 21b, 21c, 21d are connected in pairs with quarter splice units 225, 226, 227, 228. Wherein the splice ring wall 21a and the splice unit 225 form an integral structure; the splice ring wall 21b and the splice unit 226 form an integral structure; the splice ring wall 21c and the splice unit 227 form an integral structure; the splice ring wall 21d and the splice unit 228 form an integral structure. The four integral structures are symmetrical and have the same structure, and can be molded by plastic through a single tool, and then are combined into the fan frame structure 2c through a screw locking or clamping locking mode. The four butt-lock joint surfaces S3 are sequentially connected by the locking elements 26 to form the tub 20b and the fixing plate 22c by the plurality of splice ring walls 21a, 21b, 21c, 21d and the corresponding plurality of splice units 225, 226, 227, 228.

From the above, the barrel body 20b and the fixing plate 22c of the fan frame structure 2c can design the equal number of the splicing units 225, 226, 227, 228 and the splicing annular walls 21a, 21b, 21c, 21d according to the practical application requirements, so as to assemble the fan frame structure 2c by mass-producing the modularized splicing structure, thereby avoiding the expensive manufacturing cost caused by using large-sized tools and reducing the production cost. On the other hand, the four-split joint annular walls 21a, 21b, 21c, 21d and the four-split joint units 225, 226, 227, 228, which are paired to form four sets of integral structures, may also be formed by combining the structure of the locking platform 25, and molded in plastic by a single mold. The locking platform 25 may be formed by injection molding, for example, of metal on the splicing annular walls 21a, 21b, 21c, 21d, and four equally spaced locking platforms 25 are formed on the inner periphery of the barrel 20b assembled by the fan frame structure 2c. Of course, the manner of fixing the locking platform 25 and the tub 20b may be adjusted according to the actual application requirement, and this application is not limited to the illustrated embodiment, and will not be repeated.

Fig. 16 to 18 show a fan structure formed by combining a fan frame structure and a fan motor according to a fifth embodiment of the present utility model. In the present embodiment, the fan 1a and the fan frame structure 2 are similar to the fan 1 and the fan frame structure 2 shown in fig. 1 to 8, and the same reference numerals represent the same elements, structures and functions, and are not repeated herein. In this embodiment, a detachable protection net 5a is further disposed outside the second end 202 of the tub 20. The removable protective netting 5a includes an additional annular wall 52 that spatially opposes the tub 20 of the fan frame structure 2. In this embodiment, the protection net 5a has a first engagement hole 51 adjacent to the bottom of the additional annular wall 52. The bowl 20 has a second engagement aperture 204 disposed at the second end 202. The first engagement hole 51 and the second engagement hole 204 are spatially opposed to each other. The additional annular wall 52 of the protection net 5a is detachably coupled to the second end 202 of the tub 20 by engagement of a locking member (not shown) such as a bolt through the first engagement hole 51 and the second engagement hole 204, extending out of the tuyere 24 position while increasing the receiving height. The arrangement of the fan motor 3 and the support frame 4 is not affected by the protective net 5a. The protection net 5a is detachably connected with the barrel body 20, can be easily detached or changed, and does not affect the assembly or operation of the fan motor 3.

On the other hand, in the present embodiment, the protection net 5a may also adopt a spliced structure design. The additional annular wall 52 includes two equally split annular walls 521, 522 of the same size and shape. The complete additional annular wall 52 is formed by abutting the connection piece 52. The connector 53 is also detachable into identical splice connectors 531, 532. It should be noted that the splice ring walls 521, 522 have the same size and shape. Therefore, the two split joint annular walls 521 and 522 and the split joint connectors 531 and 532 can be formed by stamping or casting through a single die, so that the production cost is effectively reduced. The present utility model is not limited to the constituent materials of the protection net 5a. Of course, the fan frame structure is assembled by the modular equal split splicing structure, and the split production and assembly procedures of the fixing plate 22, the barrel body 20 and the protective net 5a can be adjusted according to the actual application requirements, so that the fan frame structure is not limited to the illustrated embodiment, and is not repeated.

To sum up, this case provides a fan frame structure, realizes the mass production manufacturing of fan frame structure through modularization mosaic structure, helps reducing manufacturing cost, simplifies whole equipment process simultaneously, improves overall structure intensity and accommodation height, increases the convenience of use. The fixed plate of the fan frame structure or/and the barrel body are combined through a modularized equal split joint structure (splicing structure), so that mass production and manufacturing can be realized, and the production cost can be reduced. The modularized equal-split splicing structure is convenient for molding and mass production, can be assembled in a welding, screw locking or clamping locking mode, and simplifies the whole assembly process. On the other hand, the fan motor is connected to the inner periphery of the barrel body through the detachable support frame, besides being convenient for assembly, the support frame formed by stamping or sheet metal can be adjusted in size, shape and number according to the size specification of the fan motor, so that the fan motor assemblies with different size specifications are accommodated in the fan frame structure, and the practicability of the fan frame structure is improved. In addition, the fan motor is connected to the inner periphery of the barrel body through the supporting frame, so that the overall structural strength and the accommodating height are improved, the fan motor and the supporting frame do not exceed the range of the barrel body, the detachable arrangement of the protective net is facilitated, the protective net can be easily detached from the barrel body or modulated, and the assembly or the operation of the fan motor is not affected. Of course, the fan frame structure is assembled by the modularized equal split splicing structure, and the materials and the forming method of the fixing plate and the barrel body can be modulated according to practical application, so that the assembly process is simplified, the structural strength is improved, the locking platform structure of the barrel body connecting support frame can be further enhanced in the mass production process, or the characteristics of the air outlet side inclined section or the air inlet section are added, and the fan frame structure is applied in multiple modes.

The present utility model is modified in a manner that would be apparent to one of ordinary skill in the art without departing from the scope of the utility model as set forth in the appended claims.

Claims (16)

1. A fan frame structure, comprising:

the barrel body comprises a first end, a second end and a hollow part, wherein the first end and the second end are opposite to each other, and the hollow part is communicated between the first end and the second end and is used for accommodating a fan motor in a combined mode; and

a fixing plate including a plurality of splice units, wherein adjacent ones of the plurality of splice units are connected to each other; the splicing units encircle the barrel body and are connected with the first end or the second end.

2. The fan frame structure of claim 1, wherein any two adjacent splice units have a first joint surface and are connected by a welding, a screw locking or a snap locking.

3. The fan frame structure of claim 1, wherein each of the plurality of splice units has a second joint surface with the tub and is connected by a welding, a screw locking or a snap locking.

4. The fan frame structure of claim 1, wherein the plurality of splice units have the same size and shape.

5. The fan frame structure of claim 1, wherein the tub is formed as a circular wall by a metal rolling.

6. The fan frame structure of claim 1, wherein the tub includes a plurality of locking platforms equidistantly disposed around an inner periphery of the tub, the fan motor is further coupled to the plurality of locking platforms by a plurality of support frames, each of the plurality of support frames includes a locking end and a fixing end opposite to each other, the locking end is detachably coupled to a corresponding one of the plurality of locking platforms, and the fixing end is detachably coupled to the fan motor.

7. The fan frame structure of claim 6, wherein the fixed ends of the plurality of support frames are connected to form a torus.

8. The fan frame structure of claim 6, wherein each of the plurality of support frames has the same size and shape and is formed by a stamping or a sheet metal method.

9. The fan frame structure of claim 6, wherein the hollow portion extends through the first end and the second end in an axial direction, the plurality of support frames and the fan motor are shielded by the tub in a radial view direction, and the plurality of support frames and the fan motor are accommodated in the hollow portion and do not exceed the first end or the second end.

10. A fan frame structure, comprising:

the barrel body comprises a first end, a second end and a hollow part, wherein the first end and the second end are opposite to each other, and the hollow part is communicated between the first end and the second end and is configured for accommodating a fan motor; and

the adjacent splicing units are connected with each other to form a fixing plate which surrounds the barrel body and is connected with the first end or the second end, and the splicing units and the splicing annular walls are connected in pairs.

11. The fan frame structure of claim 10, wherein each pair of the plurality of splice ring walls and the plurality of splice units is formed as a unitary structure by a plastic molding process.

12. The fan frame structure of claim 10, wherein a pair of locking surfaces are provided between the plurality of splice ring walls and two adjacent pairs of the plurality of splice units, and the plurality of splice ring walls and the two adjacent pairs of the plurality of splice units are connected by a screw locking or a snap locking manner.

13. A fan frame structure, comprising:

the barrel body comprises an air outlet, an air inlet and a hollow part, wherein the air outlet and the air inlet are arranged at two ends of the barrel body opposite to each other, and the hollow part is communicated between the air inlet and the air outlet; and

the fixing plate comprises a plurality of splicing units, wherein adjacent splicing units are connected with each other, and the splicing units encircle the barrel body and are arranged adjacent to the air outlet or the air inlet.

14. The fan frame structure of claim 13, wherein the tub comprises, in order from the air inlet to the air outlet, a first air inlet section, a second air inlet section, a parallel section, and an air outlet side inclined section, wherein the first air inlet section has a first radius, the second air inlet section has a second radius, and the first radius is smaller than the second radius.

15. The fan frame structure of claim 13, further comprising a protective net detachably disposed outside the air outlet, wherein the protective net and the tub are fixed by a locking manner.

16. The fan frame structure of claim 15, wherein the hollow portion of the tub is configured to receive a fan motor, and a separation distance is maintained between the fan motor and the protection net.