Fan assembly and energy storage power supply

Abstract

The utility model provides a fan assembly and an energy storage power supply. Relates to the technical field of heat dissipation devices, and comprises a shell and a centrifugal fan, the shell comprises a first wall and a second wall which are oppositely arranged, and a peripheral wall of which two ends are respectively connected with the first wall and the second wall; the centrifugal fan is arranged in the shell and comprises a fan shaft and a plurality of blades which are fixed to the fan shaft and sequentially arranged at intervals in the circumferential direction of the fan shaft. The first wall and the second wall are respectively provided with an air inlet and an air outlet; the axis of the fan shaft is parallel to the opposite arrangement direction of the first wall and the second wall; the shell is integrally formed; the centrifugal fan and the shell are configured in the mode that when the centrifugal fan rotates, airflow is introduced from the air inlet and guided to the peripheral wall, and then the airflow flows out from the air outlet through the peripheral wall. The fan assembly has the effect of reducing the production cost of the fan assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat abstractor technical field especially fan assembly and energy storage power supply. BACKGROUND

[0002] A fan is a device that converts electrical energy into mechanical energy, thereby generating an air current. Since a fan can actively generate an air current, it is conducive to promoting or enhancing the circulation of local air, and thus is widely used in various scenarios requiring ventilation and heat dissipation.

[0003] A large-air-volume axial flow fan for a case is disclosed in Chinese Patent Publication No. CN217999924U, which includes a fan frame and a fan body rotatingly installed inside the fan frame. By providing a fan body including a first fan body (i.e., a wide fan blade) and a second fan body (i.e., a narrow fan blade), an extension is fixedly arranged on the narrow fan blade and extends toward the direction of the driving motor. When the fan body is driven to rotate, the narrow fan blade can draw and discharge air flow in the axial direction of the driving shaft, and the air flow is discharged from the wide fan blade and the narrow fan blade, respectively. The discharge speed of the wide fan blade is relatively faster than that of the narrow fan blade, and the narrow fan blade can draw and discharge air flow from the peripheral side, thereby achieving the effect of discharging a large air volume in the same area.

[0004] However, the number of components constituting the above-mentioned fan is relatively large, and the number of molds required during production is increased, which greatly increases the development or procurement cost of the molds. Meanwhile, a large amount of time is required for assembly, which increases the processing cost. SUMMARY

[0005] In order to improve the cost control of the fan during the production process, the present application provides a fan assembly and an energy storage power supply.

[0006] On the one hand, the present application provides a fan assembly adopting the following technical solution:

[0007] A fan assembly includes

[0008] A housing includes a first wall and a second wall arranged opposite to each other, and a peripheral wall connecting the first wall and the second wall at both ends, respectively;

[0009] A centrifugal fan is arranged in the housing and includes a fan shaft and a plurality of blades fixed on the fan shaft and arranged in sequence and spaced apart circumferentially around the fan shaft;

[0010] The first wall and the second wall are respectively provided with an air inlet and an air outlet; the axis of the fan shaft is parallel to the direction in which the first wall and the second wall are arranged opposite to each other; the housing is integrally formed; the centrifugal fan and the housing are configured such that when the centrifugal fan rotates, air flow is introduced from the air inlet and guided to the peripheral wall, and then flows out from the air outlet via the peripheral wall.

[0011] Further, the fan assembly further comprises an impeller seat and a suspension rib, the fan shaft is arranged on the impeller seat, and the suspension rib has two opposite ends, one end of the suspension rib is fixed to the side wall of the impeller seat, and the other end is fixed to the shell.

[0012] Further, the suspension rib is fixed to the peripheral wall at the end away from the impeller seat, and the two ends of the suspension rib are integrally formed with the impeller seat and the peripheral wall, respectively.

[0013] Further, the inner side of the peripheral wall is divided into a peripheral wall surface and a guide surface in sequence along the direction in which the first wall and the second wall are opposite to each other; and the guide surface extends towards the air outlet from the peripheral wall surface.

[0014] Further, at least part of the end of the suspension rib away from the impeller seat is arranged on the guide surface.

[0015] Further, the end of the suspension rib away from the impeller seat is arranged on the guide surface.

[0016] Further, the bottom of the blade is provided with an inclined flow channel, the inclined flow channel gradually inclines downward along the outer wall of the fan shaft towards the outer edge of the blade, the guide surface is an inclined surface or a concave surface, and the bottom end of the inclined flow channel is directed towards the guide surface, so as to guide the airflow to flow to the guide surface through the inclined flow channel and be concentrated to be blown out from the air outlet.

[0017] Further, a gap is left between the side of the suspension rib away from the air inlet and the end surface of the air outlet.

[0018] Further, the gap is greater than 0 and less than 4 mm.

[0019] On the other hand, the application provides an energy storage power supply comprising the fan assembly as described above.

[0020] In summary, the application has the following beneficial effects:

[0021] By integrally forming the first wall, the second wall and the peripheral wall to form a complete shell, the strength of the shell can be further improved while effectively reducing the production cost of the shell. Meanwhile, the two ends of the suspension rib are integrally formed with the impeller seat and the peripheral wall, respectively, so that the shell, the suspension rib and the impeller seat can be produced in the same mold and the same process, thereby further reducing the manufacturing cost of the fan assembly. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the whole fan assembly according to Embodiment 1 of the application;

[0023] Figure 2is an exploded view of a fan assembly structure according to an embodiment of the present application;

[0024] Figure 3 is a structural schematic view of a combination of a housing and a centrifugal fan according to an embodiment of the present application;

[0025] Figure 4 is Figure 3 a bottom view schematic view;

[0026] Figure 5 is Figure 4 a sectional view at A-A;

[0027] Figure 6 is a structural schematic view of a gap according to an embodiment of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS 1. housing; 11. first wall; 111. air inlet; 12. second wall; 121. air outlet; 13. peripheral wall; 131. peripheral wall surface; 132. air guide surface; 14. accommodating cavity; 15. upper cover; 151. vent; 152. reinforcing rib; 16. dust cover; 161. through hole; 162. fastening bolt; 2. centrifugal fan; 21. fan shaft; 22. blade; 23. inclined flow passage; 3. impeller seat; 4. suspension rib; 5. gap. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described below in conjunction with the drawings. The following is a relatively preferred one of the multiple possible embodiments of the present application, which is intended to provide a basic understanding of the present application, but is not intended to identify the key or decisive elements or limit the scope of protection.

[0030] In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0031] Techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0032] In the description of the present application, it should be noted that the circuits and electronic components and modules involved in the present application are all prior art, which can be fully realized by those skilled in the art without further description, and the content protected by the present application does not involve improvement of internal structure and method.

[0033] It should be further noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Example 1:

[0035] Embodiment 1 of this application provides a fan assembly, referring to... Figure 1 and Figure 2 The fan assembly includes

[0036] The housing 1 includes a first wall 11 and a second wall 12 disposed opposite to each other, and a peripheral wall 13 connecting the first wall 11 and the second wall 12 at both ends respectively;

[0037] Centrifugal fan 2 is installed inside housing 1. Centrifugal fan 2 includes fan shaft 21 and multiple blades 22 fixed on fan shaft 21 and arranged circumferentially around fan shaft 21.

[0038] The first wall 11 and the second wall 12 are respectively provided with an air inlet 111 and an air outlet 121; the axis of the fan shaft 21 is parallel to the direction in which the first wall 11 and the second wall 12 are arranged opposite to each other; the housing 1 is integrally formed; the centrifugal fan 2 and the housing 1 are configured such that when the centrifugal fan 2 rotates, it introduces airflow from the air inlet 111 and guides the airflow to the peripheral wall 13, and then flows out from the air outlet 121 through the peripheral wall 13.

[0039] Housing 1 refers to the protective shell of the entire fan assembly. Housing 1 not only protects the internal components, but also plays a positioning role during the installation of the fan assembly. When housing 1 is installed on a device that requires heat dissipation, the outer wall of housing 1 abuts against the outer wall of the device installation location, enabling rapid positioning.

[0040] The first wall 11 and the second wall 12 can be respectively located at the upper and lower ends of the shell 1, which are the parts where the shell 1 contacts or forms a connection with other external components. The peripheral wall 13 connects the separate first wall 11 and the second wall 12 into a whole. The upper part of the peripheral wall 13 is integrally formed with the first wall 11, and the lower part is integrally formed with the second wall 12, so that the first wall 11, the second wall 12 and the peripheral wall 13 together form a shell 1 with a cavity 14.

[0041] That is, the shell 1 is integrally formed, so that the shell 1 only needs a set of molds during production, not only reducing the mold development and procurement costs, but also reducing the manufacturing process of the shell 1, saving production time, and at the same time, the fan assembly does not need to temporarily assemble the shell 1 during installation, thereby effectively saving the production cost of the enterprise. The first wall 11 is provided with an air inlet 111, and the second wall 12 is provided with an air outlet 121. The air inlet 111 and the air outlet 121 are communicated with the accommodating cavity 14, so that the air can circulate in the shell 1. It should be noted that when the fan assembly is placed in different positions, the first wall 11 and the second wall 12 can also be the left side wall and the right side wall of the fan assembly, respectively.

[0042] The centrifugal fan 2 is arranged in the accommodating cavity 14 of the shell 1. After being powered on, the blade 22 rotates around the fan shaft 21, and can suck the air on one side of the first wall 11 into the shell 1. After the airflow is introduced into the shell 1, it flows along the peripheral wall 13 to the second wall 12, and is finally blown out from the air outlet 121.

[0043] The shell 1 can be in the shape of a cuboid, and at this time the cross section of the air outlet 121 is also in the shape of a long strip. The shell 1 can also be in the shape of a square or a column. The shape of the shell 1 and the cross-sectional shape of the air outlet 121 can be adjusted according to the actual installation conditions of the heat dissipation device, so that the shell 1 can be better adapted.

[0044] The upper cover 15 is detachably connected to the air inlet of the first wall 11 of the shell 1. The detachable mode can be fastened connection through bolts. The center of the upper cover 15 is provided with a ventilation hole 151 communicated with the air inlet 111. After the upper cover 15 is installed on the shell 1, it can be combined with the shell 1 to enclose the accommodating cavity 14, so as to protect the elements placed in the shell 1. At the same time, the airflow can enter the inside of the shell 1 through the ventilation hole 151. The surface of the upper cover 15 is integrally formed with a reinforcing rib 152, so as to improve the strength of the upper cover 15.

[0045] The surface of the upper cover 15 away from the shell 1 is covered with a dust cover 16. The dust cover 16 is provided with a plurality of arrayed through holes 161 corresponding to the position of the ventilation hole 151. After the dust cover 16 covers the ventilation hole 151, it can reduce the dust or prevent larger foreign matters from falling into the inside of the shell 1 through the ventilation hole 151. In the embodiment 1 of the present application, the upper cover 15 and the dust cover 16 are fixed on the first wall 11 of the shell 1 through four fastening bolts 162 at the corners.

[0046] Referring to Figure 2 and Figure 3 , the fan assembly further comprises an impeller seat 3 and a suspension rib 4. The fan shaft 21 is arranged on the impeller seat 3. The suspension rib 4 has two opposite ends. One end of the suspension rib 4 is fixed with the side wall of the impeller seat 3, and the other end is fixed with the shell 1.

[0047] Impeller seat 3 is a seat body, the cross-sectional area of impeller seat 3 is larger than the cross-sectional area of fan shaft 21, the shape of impeller seat 3 can be cylindrical or square, as long as fan shaft 21 can be stably installed on impeller seat 3, and can rotate relative to impeller seat 3 through bearing or other connecting components.

[0048] Referring to Figure 3 and Figure 4 , the overall shape of the hanging rib 4 is long strip shape, the two ends of the hanging rib 4 along the length direction are respectively fixed with the side wall of the impeller seat 3 and the shell 1, so that the impeller seat 3 can be stably arranged in the accommodating cavity 14. The number of hanging ribs 4 can be multiple pairs, and each pair is symmetrically distributed relative to the axis of the centrifugal fan 2, and the number of hanging ribs 4 can be increased or decreased according to the actual shape and size of the shell 1. The number of hanging ribs 4 is not limited in this application. In some embodiments, the hanging rib 4 can be fixed to the shell 1 by screwing or other detachable fixing methods.

[0049] In this embodiment, the end of the hanging rib 4 away from the impeller seat 3 is fixed with the peripheral wall 13, and the two ends of the hanging rib 4 are integrally formed with the impeller seat 3 and the peripheral wall 13. In this way, the manufacturing cost of the fan assembly can be further reduced.

[0050] Specifically, the end of the hanging rib 4 away from the impeller seat 3 is directly fixed with the peripheral wall 13, so that the hanging rib 4 can be directly supported by the peripheral wall 13, without the need for additional structures to be fixed with the first wall 11 or the second wall 12, thereby enhancing the stability of the hanging rib 4. At the same time, the hanging rib 4 is integrally formed with the impeller seat 3 and the peripheral wall 13, so that the entire shell 1, the impeller seat 3 and the hanging rib 4 can be formed by one set of mold, effectively reducing the production cost, and improving the overall strength of the product, and reducing the assembly time between parts.

[0051] Further, referring to Figure 3 and Figure 5 , the inner side of the peripheral wall 13 is divided into a peripheral wall surface 131 and a guide surface 132 in sequence along the direction in which the first wall 11 and the second wall 12 are oppositely arranged; the guide surface 132 extends from the peripheral wall surface 131 to the air outlet 121.

[0052] The peripheral wall surface 131 and the guide surface 132 both surround the centrifugal fan 2 along the peripheral wall 13, and the guide surface 132 is close to the second wall 12. The guide surface 132 extends from the peripheral wall surface 131 to the air outlet 121, that is, along the direction from the first wall 11 to the second wall 12, the distance between the guide surface 132 and the axis of the centrifugal fan 2 gradually decreases, and the whole is in the state of gradually converging opening. In this way, the airflow can be concentrated when passing through the guide surface 132 during the process of blowing out from the air inlet to the air outlet 121 along the peripheral wall 13, and concentratedly blowing out from the air outlet 121.

[0053] Further, referring to Figure 5 At least part of the hanging ribs 4 away from the impeller seat 3 is arranged on the air guide surface 132.

[0054] At least part of the hanging ribs 4 away from the impeller seat 3 is arranged on the air guide surface 132.

[0055] In addition, at least part of the hanging ribs 4 away from the impeller seat 3 is arranged on the air guide surface 132.

[0056] In this way, the volume of the fan assembly in the direction in which the first wall 11 and the second wall 12 are arranged opposite to each other can be further reduced. Correspondingly, at this time, the air guide surface 132 needs to extend to the circumferential wall surface 131 by a certain distance in order to provide sufficient contact surface for the hanging ribs 4.

[0057] In the embodiment, the extending direction of the hanging ribs 4 is perpendicular to the direction in which the first wall 11 points to the second wall 12. In this way, the stability of the hanging ribs 4 when fixed to the shell 1 can be improved, and the occupied space of the hanging ribs 4 in the direction in which the first wall 11 points to the second wall 12 can be reduced, so as to provide sufficient space for the centrifugal fan 2. In addition, when the hanging ribs 4 are integrally formed with the shell 1 and / or the impeller seat 3, the design and processing of the mold for manufacturing the same can also be facilitated.

[0058] Further, the bottom of the blade 22 is provided with an inclined flow channel 23, the inclined flow channel 23 gradually inclines downward in the direction from the outer wall of the fan shaft 21 to the outer edge of the blade 22, the air guide surface 132 is a slope or a concave arc surface, and one end of the bottom of the inclined flow channel 23 faces the direction of the air guide surface 132, for guiding the airflow to flow to the air guide surface 132 through the inclined flow channel 23 and be blown out from the air outlet 121 in a concentrated manner.

[0059] The inclined flow channel 23 is an inclined plane arranged at the bottom of the blade 22 of the centrifugal fan 2, the inclined flow channel 23 gradually inclines downward in the direction from the outer wall of the fan shaft 21 to the outer edge of the blade 22, and one end of the bottom of the inclined flow channel 23 faces the direction of the air guide surface 132. After the centrifugal fan 2 is powered on, the blade 22 rotates, the airflow is introduced into the inside of the shell 1 from the air inlet 111, then the airflow flows to the air guide surface 132 along the inclined flow channel 23 and the circumferential wall surface 131, and finally is blown out from the air outlet 121 in a concentrated manner after being gathered by the air guide surface 132. In the embodiment, the air guide surface 132 is a concave arc surface, and in other embodiments of the application, the air guide surface 132 can also be a slope, which can also guide the airflow to be blown out in a concentrated manner.

[0060] Further, referring to Figure 5 and Figure 6The gap 5 is between the lower end surface of the suspension rib 4 and the lower end surface of the second wall 12 at the air outlet.

[0061] In the embodiment of the present application, the gap 5 is a distance between the lower end surface of the suspension rib 4 and the lower end surface of the second wall 12 at the air outlet. Since the centrifugal fan 2 will vibrate when working, and the centrifugal fan 2 is installed integrally with the suspension rib 4, the vibration generated by the centrifugal fan 2 when working will be transmitted to the suspension rib 4. If the suspension rib 4 is directly flush with the lower end surface of the second wall 12 at the air outlet, more vibration will be transmitted to the external components, resulting in greater noise. Therefore, the gap 5 is provided between the suspension rib 4 and the end surface of the air outlet 121, which can effectively reduce the transmission of vibration and thus reduce the generation of noise.

[0062] Further, the gap 5 is greater than 0 and less than 4 mm.

[0063] The gap 5 greater than 0 mm means that the gap 5 should exist or be reserved in the embodiment of the present application, and at the same time the gap 5 is less than 4 mm, so as to minimize the influence of the reservation of the gap 5 on the overall volume of the fan assembly. The specific size of the gap 5 can be determined according to the actual situation.

[0064] The implementation principle of the fan assembly of the embodiment 1 of the present application is that the first wall 11, the second wall 12 and the peripheral wall 13 are integrally formed to form a complete shell 1, which can effectively reduce the production cost of the shell 1 while further improving the strength of the shell 1. At the same time, the suspension rib 4 is integrally formed at both ends with the impeller seat 3 and the peripheral wall 13, so that the shell 1, the suspension rib 4 and the impeller seat 3 can be produced in the same mold and the same process, further reducing the manufacturing cost of the fan assembly.

[0065] Embodiment 2:

[0066] The embodiment 2 of the present application discloses a kind of energy storage power supply, including the fan assembly as described in embodiment 1, when using, fan assembly needs to be installed on energy storage power supply, and it is blown for energy storage power supply to dissipate heat.

[0067] In this document, the front, back, up, down and other orientation words are defined by the position of the components in the drawing and the position of the components relative to each other in the drawing, just to express the technical solution clearly and conveniently. It should be understood that they are relative concepts, which can be changed accordingly according to different ways of use and placement. The use of the orientation words should not limit the scope of the present application.

[0068] In the case of no conflict, the features in the above embodiments and the embodiments can be combined with each other.

[0069] The above description is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fan assembly, characterized in that: include The housing includes a first wall and a second wall disposed opposite to each other, and a peripheral wall that connects the first wall and the second wall at both ends respectively; A centrifugal fan is disposed within the housing and includes a fan shaft and a plurality of blades fixed on the fan shaft and arranged circumferentially around the fan shaft at intervals. The first wall and the second wall are respectively provided with an air inlet and an air outlet; the axis of the fan shaft is parallel to the direction in which the first wall and the second wall are arranged opposite to each other; the housing is integrally formed; the centrifugal fan and the housing are configured such that when the centrifugal fan rotates, airflow is introduced from the air inlet and guided to the peripheral wall, and then flows out from the air outlet through the peripheral wall.

2. The fan assembly as claimed in claim 1, characterized in that: It also includes an impeller seat and a suspension rib. The fan shaft is mounted on the impeller seat, and the suspension rib has two opposite ends. One end of the suspension rib is fixed to the side wall of the impeller seat, and the other end is fixed to the housing.

3. The fan assembly as described in claim 2, characterized in that: The end of the suspension rib away from the impeller seat is fixed to the peripheral wall.

4. The fan assembly as claimed in claim 3, characterized in that: The inner surface of the peripheral wall is divided into a peripheral wall surface and an air guide surface along the direction in which the first wall and the second wall are arranged opposite to each other; the air guide surface extends and converges from the peripheral wall surface toward the air outlet.

5. The fan assembly as claimed in claim 4, characterized in that: At least a portion of the suspension rib at the end away from the impeller seat is disposed on the air guide surface; Alternatively, the two ends of the suspension rib are integrally formed with the impeller seat and the peripheral wall, respectively; Alternatively, the extension direction of the suspension rib is perpendicular to the direction from the first wall to the second wall.

6. The fan assembly as claimed in claim 4, characterized in that: The suspension ribs are all located on the air guide surface at the end furthest from the impeller seat.

7. The fan assembly as claimed in claim 1, characterized in that: The blade has an inclined flow channel at its bottom. The inclined flow channel gradually slopes downwards along the outer wall of the fan shaft towards the outer edge of the blade. The air guide surface is a slope or a concave arc surface. One end of the bottom of the inclined flow channel faces the air guide surface and is used to guide the airflow through the inclined flow channel to the air guide surface and concentrate it to be blown out from the air outlet.

8. The fan assembly as claimed in claim 2, characterized in that: A gap is left between the side of the suspension rib away from the air inlet and the end face of the air outlet.

9. The fan assembly as claimed in claim 7, characterized in that: The gap is greater than 0 and less than 4 mm.

10. An energy storage power source, characterized in that: Includes the fan assembly as described in any one of claims 1-9.

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