Blowing fan side wall facade injection package structure

Abstract

The invention discloses a blowing fan side wall vertical face shooting and wrapping structure which comprises a base, an upper cover and a side wall assembly, the side wall assembly is arranged between the base and the upper cover, the side wall assembly is connected with the base and the upper cover in a clamped mode, the side wall assembly comprises an inner side wall, an outer side wall and a tongue part, and a plurality of clamping blocks are arranged on the outer wall of the outer side wall. The fan has the beneficial effects that the design that a two-dimensional side wall plane jet-package structure is replaced with a three-dimensional side wall vertical face jet-package structure is adopted, the jet-package combination strength can be effectively improved, the overall structural strength of the fan is enhanced, the arc flow channel structure is adopted in the fan, the air inlet efficiency is improved, the air volume and the air pressure are improved, and meanwhile noise is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of blowers, and in particular to a blower side wall vertical package shooting structure. Background Art

[0002] A blower fan is a device that generates airflow by rotating electrically driven blades around an axis. It is widely used in fields such as computers, communications and optoelectronic products, inverters, refrigeration equipment, etc. to cool and dissipate heat. The blower fan can remove the heat generated by the equipment system through sufficient air volume to prevent the electrical or processing performance of the device from being reduced and the life loss caused by the temperature increase.

[0003] When the blower fan motor rotates and drives the fan impeller to rotate, the gas between the blades in the impeller also rotates, and the gas is thrown out under the action of centrifugal force. The gas flow rate increases, and the gas converts kinetic energy into static pressure energy during the flow. Then, as the fluid is pressurized, the static pressure energy is converted into velocity energy, and the gas is discharged through the exhaust port, forming a certain negative pressure in the middle of the impeller. Due to the negative pressure at the inlet, the outside gas is immediately replenished under the action of atmospheric pressure, and the gas is continuously discharged and replenished under the continuous rotation of the impeller, thereby achieving the purpose of continuous blowing.

[0004] The outer frame of conventional blower fans is mostly a side wall flat package structure. During use, the air volume and air pressure are subject to certain restrictions, affecting the gas flow rate. In addition, the side wall flat structure has insufficient bonding strength and cannot be rounded. The noise is loud and cannot be improved, which affects the service life. Summary of the invention

[0005] The object of the present invention is to provide a blower fan side wall vertical surface package shooting structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A blower fan side wall vertical shooting bag structure provided by the present invention includes a base, an upper cover and a side wall assembly. The side wall assembly is arranged between the base and the upper cover, and the side wall assembly is respectively clamped with the base and the upper cover. The side wall assembly includes an inner side wall, an outer side wall and a tongue. A plurality of clamping blocks are provided on the outer wall of the outer side wall.

[0008] Further preferably, the upper cover comprises a cover plate, a side of the cover plate close to the side wall assembly is provided with a bending portion 1, and a lower end of the bending portion is provided with a plurality of card slots matching the card blocks.

[0009] Further preferably, there is an arc transition between the bending portion 1 and the cover plate, and the bending portion 1 and the clamping slot are located on the same plane.

[0010] Further preferably, the base has a second bending portion on one side close to the side wall assembly, and there is an arc transition between the second bending portion and the base. The second bending portion is provided with a plurality of avoidance grooves and splicing grooves, and the plurality of avoidance grooves are arranged corresponding to the card slots.

[0011] Further preferably, the first bending portion and the second bending portion are respectively embedded in the upper and lower ends of the side wall assembly.

[0012] Further preferably, the upper end of the inner wall protrudes from the outer wall, and a plurality of splicing blocks are provided on the inner wall of the inner wall. The plurality of splicing blocks are arranged corresponding to the splicing grooves and are mutually engaged with the splicing grooves.

[0013] Further preferably, there is a step between the lower end of the inner wall and the outer wall, and the plurality of splicing blocks are located at the lower end of the step and fixedly connected to the outer wall.

[0014] Further preferably, a plurality of installation grooves are opened on the outer wall, a plurality of the blocks are embedded in the installation grooves, and the outer wall of the outer wall and the outer wall of the blocks are located on the same plane.

[0015] Further preferably, the inner wall, the outer wall and the tongue are an integrally formed structure.

[0016] Further preferably, the tongue is arranged on the inner wall of the inner side wall, and the upper and lower ends of the tongue are respectively connected with the upper cover and the base in abutment with each other.

[0017] Beneficial effects: A blower fan side wall vertical shot package structure adopts a three-dimensional side wall vertical shot package structure to replace the original two-dimensional side wall plane shot package structure design, which can effectively increase the shot package bonding strength, enhance the overall structural strength of the fan, and extend the service life; the fan adopts an arc flow channel structure inside to increase the air intake efficiency, increase the air volume and pressure, and effectively reduce the noise generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the base structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the upper cover structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the side wall assembly of the present invention;

[0023] Figure 6 The air volume and pressure test report of the blower fan of the present invention;

[0024] Figure 7 This is a test report of the blower fan noise of the present invention.

[0025] Reference numerals

[0026] 1-base, 11-bending part 2, 111-avoidance groove, 112-joining groove, 2-upper cover, 21-cover plate, 22-bending part 1, 221-card slot, 3-side wall assembly, 31-inner wall, 311-joining block, 32-outer wall, 321-card block, 322-installation groove, 33-tongue. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] Example

[0029] like Figure 1-5 As shown, a blower fan side wall facade shooting package structure includes a base 1, an upper cover 2 and a side wall assembly 3. The side wall assembly 3 is arranged between the base 1 and the upper cover 2, and the side wall assembly 3 is respectively clamped with the base 1 and the upper cover 2. The side wall assembly 3 includes an inner wall 31, an outer wall 32 and a tongue 33. A plurality of clamping blocks 321 are provided on the outer wall of the outer wall 32.

[0030] In the first embodiment, the upper cover 2 includes a cover plate 21, and a bending portion 22 is provided on one side of the cover plate 21 close to the side wall assembly 3. A plurality of card slots 221 matching the card blocks 321 are provided at the lower end of the bending portion 22. The plurality of card blocks 321 are 3 in number and are respectively arranged at the front end and both sides of the side wall assembly 3. When the upper cover 2 and the side wall assembly 3 are assembled, the card slots 221 correspond to the card blocks 321 and are buckled into each other to form a stable connection. There is an arc transition between the bending portion 22 and the cover plate 21, and the bending portion 22 and the card slot 221 are located on the same plane. After assembly, the bending portion 22 is flush with the outer side of the card slot 221, and the lower end of the bending portion 22 is embedded between the inner side wall 31 and the outer side wall 32 of the side wall assembly 3.

[0031] In the second embodiment, the base 1 has a bending portion 11 on one side close to the side wall assembly 3, and there is an arc transition between the bending portion 11 and the base 1. The bending portion 1 22 and the bending portion 11 are respectively in a vertical elevation structure with the cover plate 21 of the upper cover 2 and the base 1. A plurality of avoidance grooves 111 and splicing grooves 112 are provided on the bending portion 11, and the plurality of avoidance grooves 111 are arranged corresponding to the card grooves 221. When the base 1 and the side wall assembly 3 are assembled, the plurality of splicing grooves 112 on the bending portion 11 are embedded in the splicing block 311 in a one-to-one correspondence, and the avoidance grooves 111 are plugged into the installation grooves 322 on the outer wall 32, so that the inner wall of the assembled blower fan is flat, and the bending portion 22 and the bending portion 11 are respectively embedded at the upper and lower ends of the side wall assembly 3.

[0032] In the third embodiment, the upper end of the inner wall 31 protrudes from the outer wall 32, and a plurality of splicing blocks 311 are arranged on the inner wall of the inner wall 31. The plurality of splicing blocks 311 are arranged corresponding to the splicing grooves 112 and are mutually engaged with the splicing grooves 112. The splicing grooves 112 and the splicing blocks 311 are designed to be triangular in shape. The mutually engaged structures ensure that the vertical surface of the blower fan after assembly is flat, and have the effect of increasing the bonding strength. There is a step between the lower end of the inner wall 31 and the outer wall 32, and the installation space of the bending part 11 is avoided by the step. The plurality of splicing blocks 311 are located at the lower end of the step and are fixedly connected to the outer wall 32. The outer wall 32 has a plurality of The mounting groove 322 has a plurality of blocks 321 embedded in it. The size of the mounting groove 322 is larger than that of the block 321, so that the block 321 can be buckled into the mounting groove 322 and still be embedded in the mounting groove 322. The outer wall of the outer wall 32 and the outer wall of the block 321 are located on the same plane. The inner wall 31, the outer wall 32 and the tongue 33 are integrally formed. The tongue 33 is arranged on the inner wall of the inner wall 31. The upper and lower ends of the tongue 33 are respectively connected with the cover plate 21 and the base 1. After the base 1, the upper cover 2 and the side wall assembly 3 are assembled, the verticality of the inner and outer wall facades of the blower fan is guaranteed, and the structural strength is increased, which is not easy to loosen.

[0033] like Figure 6 As shown in the fan air volume and wind pressure test report, under the test condition of setting the voltage to 12V, as shown in the static pressure and air flow curve, the air volume of the side wall facade shooting package structure increased by 1.9%, the wind pressure increased by 1.7%, and the shooting package strength increased by 22.8%, effectively increasing the air volume and wind pressure and increasing the structural strength.

[0034] like Figure 7As shown in the fan noise test report, under the test conditions of set voltage of 12V and test distance of 0.5M, the rotation speeds of the side wall facade shooting package structure and the conventional design structure are 2800RPM:3000RPM respectively. As shown in the test spectrum diagram, the noise ratio generated is 45.3dB(A):47.2dB(A). Therefore, the noise generated by the side wall facade shooting package structure of the blower fan in this technical solution is significantly smaller than that of the conventional design structure, with the noise reduced by 4.7%, effectively reducing the noise.

[0035] In this technical solution, an injection-coated combined structure is formed by extending the outer periphery of the upper cover and the base toward the vertical surface and then combining with the side wall assembly 3 to replace the flat rubber-coated structure of the side wall in the conventional design, breaking through the existing solidification design, increasing the structural strength, and utilizing the design of the arc flow channel to effectively increase the air intake efficiency, increase the air volume and pressure, and reduce noise.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the invention content within the protection scope of the present invention.

Claims

1. A fan side wall vertical package shooting structure, characterized in that: The invention comprises a base (1), an upper cover (2) and a side wall assembly (3); the side wall assembly (3) is arranged between the base (1) and the upper cover (2), and the side wall assembly (3) is respectively engaged with the base (1) and the upper cover (2); the side wall assembly (3) comprises an inner side wall (31), an outer side wall (32) and a tongue (33); a plurality of engaging blocks (321) are arranged on the outer wall of the outer side wall (32).

2. The blower fan side wall vertical package shooting structure according to claim 1, characterized in that: The upper cover (2) comprises a cover plate (21), a side of the cover plate (21) close to the side wall assembly (3) is provided with a bending portion (22), and a lower end of the bending portion (22) is provided with a plurality of card slots (221) matching the card blocks (321).

3. The blower fan side wall vertical package shooting structure according to claim 2, characterized in that: There is an arc transition between the bending portion 1 (22) and the cover plate (21), and the bending portion 1 (22) and the clamping groove (221) are located on the same plane.

4. The blower fan side wall vertical package shooting structure according to claim 3 is characterized in that: The base (1) has a second bending portion (11) on one side close to the side wall assembly (3), and a circular arc transition is formed between the second bending portion (11) and the base (1). The second bending portion (11) is provided with a plurality of avoidance grooves (111) and splicing grooves (112), and the plurality of avoidance grooves (111) are arranged corresponding to the clamping grooves (221).

5. The blower fan side wall vertical surface package shooting structure according to claim 4, characterized in that: The first bending portion (22) and the second bending portion (11) are respectively embedded in the upper and lower ends of the side wall assembly (3).

6. The blower fan side wall vertical package shooting structure according to claim 4, characterized in that: The upper end of the inner wall (31) protrudes from the outer wall (32); a plurality of splicing blocks (311) are provided on the inner wall of the inner wall (31); the plurality of splicing blocks (311) are arranged corresponding to the splicing grooves (112) and are mutually engaged with the splicing grooves (112).

7. The blower fan side wall vertical surface package shooting structure according to claim 6, characterized in that: A step is provided between the lower end of the inner wall (31) and the outer wall (32), and a plurality of the splicing blocks (311) are located at the lower end of the step and are fixedly connected to the outer wall (32).

8. The blower fan side wall vertical surface package shooting structure according to claim 1, characterized in that: The outer side wall (32) is provided with a plurality of installation grooves (322), a plurality of the clamping blocks (321) are embedded in the installation grooves (322), and the outer wall of the outer side wall (32) and the outer wall of the clamping blocks (321) are located on the same plane.

9. The blower fan side wall vertical package shooting structure according to claim 1, characterized in that: The inner wall (31), the outer wall (32) and the tongue (33) are an integrally formed structure.

10. The blower fan side wall vertical surface package shooting structure according to claim 1, characterized in that: The tongue (33) is arranged on the inner wall of the inner side wall (31), and the upper and lower ends of the tongue (33) are respectively in contact with the upper cover (2) and the base (1).

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