Plate type fan frame structure

Abstract

The utility model discloses a plate type fan frame structure, which belongs to the technical field of fan frames, solves the problems that the existing device is high in manufacturing cost and not environment-friendly, and a steel structure can generate noise during vibration, and comprises an annular plastic shell, and a motor fixing support is arranged in the plastic shell. The strength of the plastic shell is improved through reinforcing ribs, the plastic shell can be kept round through the arrangement that a first arc-shaped supporting piece and a second arc-shaped supporting piece are attached to the inner wall of the plastic shell, the inner wall of the plastic shell is supported through a support vertical rod and the support transverse rod, and the plastic shell is not prone to falling off. The plastic shell is made of the LLDPE plastic particles, extrusion deformation of the plastic shell can be avoided, the overall strength of the plastic shell is further improved, the plastic shell made of the LLDPE plastic particles is low in cost and easy to degrade, the support vertical rods and the support transverse rods are connected together through the bolts, and the purpose of avoiding noise caused by mutual collision between the support vertical rods and the support transverse rods is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan frames, in particular to a plate - type fan frame structure. Background Technique

[0002] The plate - type fan is a kind of fan. It drives the blades to rotate through an electric motor, and then increases the air circulation rate around. Most of the plate - type fans adopt the outer shells made of fiberglass and iron sheet, which can avoid the direct contact between the human body and the rotating blades, thus preventing the occurrence of harm to the human body.

[0003] After retrieval, in the application with the patent application number 202223161087.X, a support and heat - dissipation frame structure of a DC permanent - magnet fan is disclosed, which includes a housing, a mounting plate bracket, a mesh cover and a spray ring. The mounting plate bracket is in a cross shape and consists of a motor mounting plate and symmetrically welded steel sleeve shafts; the other end of the steel sleeve shaft is the fixed end of the mounting plate bracket, and the mounting plate bracket is installed on the rear edge of the housing through four fixed ends; the heat - dissipation frame structure also includes a booster pump, a water inlet pipe, a water outlet pipe, a mesh cover and a spray ring. The booster pump is fixedly installed on the mounting plate bracket, its output end is connected to the water inlet pipe, the water inlet pipe is connected to the water outlet pipe, the mesh cover wraps the mounting plate bracket inside the housing, the spray ring is installed outside the mesh cover, and the water outlet pipe is connected to the input of the spray ring;

[0004] Although the mounting plate bracket of the support and heat - dissipation frame structure of the DC permanent - magnet fan is welded with 45# steel and the motor mounting plate is made of Q235B sheet, which increases the overall strength and the mounting plate is not easily damaged during disassembly and assembly, the manufacturing cost of the support and heat - dissipation frame structure of the DC permanent - magnet fan is high, it is not environmentally friendly, and the steel structure will generate noise during vibration.

[0005] Therefore, we propose a plate - type fan frame structure. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a plate - type fan frame structure, which solves the problems of high manufacturing cost, non - environmental friendliness of the existing device, and the generation of noise by the steel structure during vibration.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A plate - type fan frame structure includes a plastic housing in a ring shape. An electric - motor fixing bracket is arranged inside the plastic housing, and a bracket cross bar is arranged below the electric - motor fixing bracket;

[0008] Reinforcing ribs are provided on both the inner wall and the outer wall of the plastic housing. The motor fixing bracket includes a motor mounting plate, a bracket vertical rod, and a first arc-shaped support piece. Two symmetrically distributed bracket vertical rods are fixedly installed on both sides of the bottom surface of the motor mounting plate. First arc-shaped support pieces are fixedly installed at both ends of the two bracket vertical rods, and the first arc-shaped support pieces are installed on the inner wall of the plastic housing by bolts.

[0009] Preferably, the reinforcing ribs are distributed in a circular array on the inner and outer side walls of the plastic housing. The plastic housing and the reinforcing ribs are integrally formed by rotational molding. The strength of the plastic housing can be increased through the reinforcing ribs. The materials of the plastic housing and the reinforcing ribs are both degradable LLDPE plastic particles. Among them, the plastic housing made of LLDPE plastic particles has a lower cost and is easy to degrade, and will not cause pollution to the environment.

[0010] Preferably, second arc-shaped support pieces are fixedly installed at both ends of the bracket cross bar. The second arc-shaped support pieces are installed on the inner wall of the plastic housing by bolts. The first arc-shaped support pieces and the second arc-shaped support pieces are staggered with the reinforcing ribs. Among them, the inner wall of the plastic housing can be supported through the bracket cross bar and the bracket vertical rod.

[0011] Preferably, both the second arc-shaped support piece and the first arc-shaped support piece are in contact with the inner wall of the plastic housing. Installation holes are provided on both the first arc-shaped support piece and the second arc-shaped support piece. Threaded blind holes that are opposite in position and matched with the installation holes are provided on the inner wall of the plastic housing. It is convenient to install the bracket cross bar and the bracket vertical rod inside the plastic housing through the second arc-shaped support piece and the first arc-shaped support piece. The inner ring of the plastic housing can also be supported through the second arc-shaped support piece and the first arc-shaped support piece, which can keep the plastic housing circular and increase the overall strength of the plastic housing.

[0012] Preferably, there are two bracket cross bars and two bracket vertical rods. The two bracket cross bars and the two bracket vertical rods are distributed in a "well" shape. The position where the bracket vertical rod and the bracket cross bar overlap is connected together by bolts and nuts. Among them, connecting the bracket vertical rod and the bracket cross bar through bolts can prevent noise generated by mutual collision between the bracket vertical rod and the bracket cross bar, and can also increase the overall strength of the bracket vertical rod and the bracket cross bar, which is beneficial to improving the support effect of the motor fixing bracket and the bracket cross bar on the plastic housing.

[0013] The present utility model provides a frame structure of a plate-type fan. It has the following beneficial effects:

[0014] The frame structure of this panel fan increases the strength of the plastic shell through the reinforcing ribs. Through the arrangement of the first arc-shaped support piece and the second arc-shaped support piece that fit the inner wall of the plastic shell, the plastic shell can be kept circular. By using the vertical support rod and the horizontal support rod of the bracket to support the inner wall of the plastic shell, the plastic shell can be prevented from being squeezed and deformed, further increasing the overall strength of the plastic shell. Moreover, the plastic shell made of LLDPE plastic particles has a low cost and is easy to degrade, and will not cause pollution to the environment. By connecting the vertical support rod and the horizontal support rod of the bracket with bolts, the purpose of avoiding noise generated by the collision between the vertical support rod and the horizontal support rod of the bracket is achieved, solving the problems of high manufacturing cost, non-environmental protection of the existing device, and noise generated by the steel structure during vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the inner wall of the plastic shell of the present utility model;

[0017] Figure 3 is a schematic side view structural diagram of the present utility model.

[0018] In the figure: 1, motor fixing bracket; 11, motor mounting plate; 12, vertical support rod; 13, first arc-shaped support piece; 2, horizontal support rod of the bracket; 21, second arc-shaped support piece; 3, plastic shell; 31, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0020] As Figures 1-3As shown: it includes a ring-shaped plastic shell 3, a motor fixing bracket 1 is arranged inside the plastic shell 3, a bracket cross bar 2 is arranged below the motor fixing bracket 1, and the inner wall and outer wall of the plastic shell 3 are both provided with reinforcing ribs 31. The motor fixing bracket 1 includes a motor mounting plate 11, a bracket vertical rod 12 and a first arc-shaped support sheet 13. Two symmetrically distributed bracket vertical rods 12 are fixedly installed on both sides of the bottom surface of the motor mounting plate 11. The first arc-shaped support sheet 13 is fixedly installed at both ends of the two bracket vertical rods 12. The first arc-shaped support sheet 13 is installed on the inner wall of the plastic shell 3 by bolts, and the reinforcing ribs 31 are distributed in a ring array on the plastic shell 3. On the inner and outer side walls, the plastic shell 3 and the reinforcing ribs 31 are integrally formed by rotational molding. The materials of the plastic shell 3 and the reinforcing ribs 31 are both degradable LLDPE plastic particles. The strength of the plastic shell 3 can be increased by the reinforcing ribs 31. The plastic shell 3 and the reinforcing ribs 31 are both degradable LLDPE plastic particles. Among them, the plastic shell 3 made of LLDPE plastic particles is low in cost and easy to degrade, and will not cause pollution to the environment. The entire plastic shell 3 can be supported by the first arc-shaped support sheet 13, and the plastic shell 3 can be prevented from being squeezed and deformed by the bracket vertical rod 12, thereby increasing the overall strength of the plastic shell 3. Example 2

[0021] like Figure 1 and 3 As shown: the second arc-shaped support pieces 21 are fixedly installed at both ends of the bracket cross bar 2, and the second arc-shaped support piece 21 is installed on the inner wall of the plastic shell 3 by bolts. The first arc-shaped support piece 13 and the second arc-shaped support piece 21 are staggered with the reinforcing ribs 31. The second arc-shaped support piece 21 and the first arc-shaped support piece 13 are both fitted with the inner wall of the plastic shell 3. The first arc-shaped support piece 13 and the second arc-shaped support piece 21 are both provided with mounting holes. The inner wall of the plastic shell 3 is provided with threaded blind holes that are opposite to and match the mounting holes. The plastic shell 3 can also be supported by the second arc-shaped support piece 21 and the bracket cross bar 2, further increasing the overall strength of the plastic shell 3. Example 3

[0022] like Figure 1 and 3 As shown: two bracket cross bars 2 and two bracket vertical bars 12 are each provided, and the two bracket cross bars 2 and the two bracket vertical bars 12 are distributed in a "well" shape. The overlapping positions of the bracket vertical bars 12 and the bracket cross bars 2 are connected together by bolts and nuts, and the bracket vertical bars 12 and the bracket cross bars 2 are connected together by bolts, thereby achieving the purpose of avoiding collision and noise between the bracket vertical bars 12 and the bracket cross bars 2.

[0023] Working principle and usage process of the present utility model: For the frame structure of this plate-type fan, during use, the motor is installed on the motor mounting plate 11, and the output shaft of the motor passes through the motor mounting plate 11. Then, the fan blade is installed on the output shaft of the motor. The strength of the plastic shell 3 is increased by the reinforcing rib 31. The plastic shell 3 is supported by the support vertical rod 12 and the first arc-shaped support piece 13 in cooperation with the support cross rod 2 and the second arc-shaped support piece 21. Through the arrangement that the first arc-shaped support piece 13 and the second arc-shaped support piece 21 are in contact with the inner wall of the plastic shell 3, the plastic shell 3 can be kept circular. By using the support vertical rod 12 and the support cross rod 2 to support the inner wall of the plastic shell 3, the plastic shell 3 can be prevented from being extruded and deformed. Connecting the support vertical rod 12 and the support cross rod 2 together with bolts can avoid the situation where noise is generated due to mutual collision between the support vertical rod 12 and the support cross rod 2.

[0024] The above has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plate-type fan frame structure, characterized in that: It comprises an annular plastic shell (3), a motor fixing bracket (1) is arranged inside the plastic shell (3), and a bracket cross bar (2) is arranged below the motor fixing bracket (1); The inner wall and the outer wall of the plastic housing (3) are both provided with reinforcing ribs (31); the motor fixing bracket (1) comprises a motor mounting plate (11), a bracket vertical rod (12) and a first arc-shaped support sheet (13); two symmetrically distributed bracket vertical rods (12) are fixedly mounted on both sides of the bottom surface of the motor mounting plate (11); the first arc-shaped support sheet (13) is fixedly mounted on both ends of the two bracket vertical rods (12); and the first arc-shaped support sheet (13) is mounted on the inner wall of the plastic housing (3) by means of bolts.

2. A plate-type fan frame structure according to claim 1, characterized in that: The reinforcing ribs (31) are distributed in an annular array on the inner and outer side walls of the plastic shell (3); the plastic shell (3) and the reinforcing ribs (31) are integrally formed by a rotational molding process; and the plastic shell (3) and the reinforcing ribs (31) are both made of degradable LLDPE plastic particles.

3. A plate-type fan frame structure according to claim 1, characterized in that: Second arc-shaped support pieces (21) are fixedly mounted at both ends of the support crossbar (2); the second arc-shaped support piece (21) is mounted on the inner wall of the plastic housing (3) by means of bolts; the first arc-shaped support piece (13) and the second arc-shaped support piece (21) are staggered with the reinforcing ribs (31).

4. A plate-type fan frame structure according to claim 3, characterized in that: The second arc-shaped support sheet (21) and the first arc-shaped support sheet (13) are both fitted with the inner wall of the plastic shell (3); the first arc-shaped support sheet (13) and the second arc-shaped support sheet (21) are both provided with mounting holes; and the inner wall of the plastic shell (3) is provided with a threaded blind hole which is opposite to and matches the mounting hole.

5. The plate-type fan frame structure according to claim 3, characterized in that: Two of each of the support cross bars (2) and the support vertical bars (12) are provided, and the two support cross bars (2) and the two support vertical bars (12) are distributed in a "well" shape, and the overlapping positions of the support vertical bars (12) and the support cross bars (2) are connected together by bolts and nuts.

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