Cushion fan

Abstract

The utility model provides a cushion fan which comprises a shell with an air guide port and a fan wheel installed in the shell, an inner cavity space is arranged in the shell, the inner cavity space is communicated with the air guide port, the shell is provided with a volute matched with the fan wheel and an air flow motion space, the volute is provided with an air outlet and an air inlet, and when the fan wheel rotates, the air inlet is communicated with the air guide port. Air flow of the air inlet moves along with the fan wheel, starts to guide air flow of the inner cavity space and the air guide opening to enter the volute and then is exhausted from the air outlet. The heat dissipation device has the advantages that the heat dissipation device is high in structural integrity and easy to install, the appearance of the heat dissipation device is in a rectangular box shape, the heat dissipation device can be directly clamped in a similar automobile seat or a baby stroller, the same and excellent heat dissipation effect can be achieved on the automobile seat or the baby stroller, and due to the fact that the heat dissipation device is provided with the air guide plate, the overall practicability is better, and the heat dissipation effect is better. Large foreign matters can be prevented from entering, areas can be better distinguished, and finally, one fan wheel is matched with one air outlet, so that air flow attenuation caused by an overlong air flow conduction path is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field that heat dissipation tool applies, especially a cushion fan. BACKGROUND

[0002] With the improvement of life quality, fans will be applied everywhere in life and work, and the stuffiness produced by slow air flow or the stuffiness caused by outdoor heat wave will bring people unpleasant feelings.

[0003] A centrifugal fan is proposed in reference patent announcement No. (CN208950907U), which is built into a car seat and used to generate guided air flow. The device is small and compact, but the installation process is complex, and it needs to be matched with an air duct and is difficult to apply in other scenarios.

[0004] Therefore, a cushion fan is proposed, which can solve the problem of applying to seat to guide heat dissipation, has strong overall performance, and is easy to install in multiple environments. UTILITY MODEL CONTENTS

[0005] The utility model provides a cushion fan to solve the above technical problems.

[0006] In order to solve the above technical problems, the technical scheme of the utility model is as follows:

[0007] A cushion fan, comprising:

[0008] A shell with an air guide port and a fan wheel installed in the shell, the shell is built-in with an inner cavity space, the inner cavity space is communicated with the air guide port, and there is a volute adapted to the fan wheel and a gas flow movement space, the volute has an air outlet and an air inlet, when the fan wheel rotates, the air flow of the air inlet moves with the fan wheel, and starts to guide the air flow of the inner cavity space and the air guide port into the volute, and then is discharged from the air outlet.

[0009] Further, the shell is a rectangular box, the shell comprises an upper shell piece and a lower shell piece, and the air guide port is located at the front and rear ends of the shell.

[0010] Further, the air guide port is provided with an air guide plate.

[0011] Further, the upper shell piece and the lower shell piece are both provided with grooves, and the outer periphery of the air guide plate is provided with a convex edge adapted to the grooves.

[0012] Further, the air inlet is located above the volute, and the air outlet is located on one side of the volute.

[0013] Further, the air outlet is arranged at the air guide port with a relatively sealed surface.

[0014] Further, the volute comprises a volute seat and a volute cover.

[0015] Further, the volute is provided with an extension, the upper shell member has a sealing portion, and the extension and the sealing portion form a relatively sealed surface with only an air outlet.

[0016] Further, the fan wheel in the shell has at least one group and cooperates with a single air outlet volute.

[0017] Further, a side wall surface of the shell has a wire hole.

[0018] The utility model discloses the beneficial effect: this structure is strong in integrity, and easily install, its appearance is rectangular box body shape, can directly card mounting in similar car seat or baby stroller, is favorable to the same degree and excellent heat dissipation effect of producing to car seat or baby stroller, secondly, is equipped with the deflector, makes the practicability of whole better, can block the large -sized foreign matter and enter, can also distinguish the area better, finally, a fan wheel cooperates one air outlet, effectively reduces the airflow attenuation caused by airflow conduction path too long. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is one of the structural schematic diagram of the utility model;

[0020] Figure 2 It is the second structural schematic diagram of the utility model;

[0021] Figure 3 It is the third structural schematic diagram of the utility model;

[0022] Figure 4 It is the sectional structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] The specific embodiment of the utility model is further explained in combination with the drawings. It needs to be explained here that the explanation of these embodiments is used to help understanding the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] According to Figures 1-4 As shown in the figure, the structure provides a cushion fan, which is suitable for being arranged in the environment of car seat or baby stroller, etc. by input airflow guiding and merging into a certain space for heat dissipation, comprising a shell 1 with a deflector 3, and a fan wheel 2 built in the shell 1, and the deflector 3 has the functions of air inlet and air outlet.

[0025] As shown in the figure, the shell 1 is a rectangular box, the air guide port 3 is two groups, and the air guide port 3 is designed in the same axial direction on the front and rear end faces of the shell 1 respectively, the shell 1 includes an upper shell part 11 and a lower shell part 12 which is combined with the upper shell part 11, the upper shell part 11 and the lower shell part 12 are combined to define an inner cavity space 100 for installing the fan wheel 2 and air flow movement driven by the fan wheel 2, of course, the inner cavity space 100 is communicated with the air guide port 3, as shown in the figure, the air guide plate part 4 is installed in the air guide port 3 which is combined by the upper shell part 11 and the lower shell part 12, in this embodiment, the recess 200 of the air guide plate part 4 is adapted on the upper shell part 11 and the lower shell part 12, the recess 200 is annularly arranged at the position of the opening of the end face of the upper shell part 11 or the lower shell part 12, and the outer circumferential surface of the air guide plate part 4 has the convex edge 41 which is adapted on the recess 200, the air guide plate part 4 is installed by the way of embedding;

[0026] As shown in the figure, the fan wheel 2 is installed on the inner wall surface of the lower shell part 12, and the lower shell part 12 has a volute which is adapted to the fan wheel 2, the volute is provided with an air inlet 300 and an air outlet 400, the air inlet 300 is located above the volute, and the air outlet 400 is located on one side of the volute and opposite to the air guide port 3, in this structure, the volute also has an extension part 500, the extension part 500 is located on one side of the air outlet 400, extends to the inner wall surface of the air guide port 3, and makes the air outlet 400 and the air guide port 3 which cooperates with the air outlet 400 form a relative sealing, the extension part 500 is integrally connected with the air guide part 700 in the volute, and the extension part 500 is perpendicular to the inner wall surface of the upper shell part 11 and the lower shell part 12;

[0027] The volute is combined by two groups of the same structure, including a volute base 5 and a volute cover 6, in this structure, the volute base 5 is integrally connected with the lower shell part 12, and the volute cover 6 is installed above the volute base 5 by the way of buckling, wherein the fan wheel 2 is centrifugal type and is installed on the lower shell part 12 by a stator part, therefore, there is a hollow interval between the upper part of the volute and the upper shell part 11, at the same time, the upper shell part 11 has a sealing part 800 which cooperates with the extension part 500, so that the air guide port 3 only has a relative sealing surface of the air outlet 400, when the fan wheel 2 is started, the air flow is gathered into the volute through the air guide port 3 which is opened, the air flow is brought out by the fan wheel 2 and gathered to the air outlet 400 to flow out;

[0028] It should be noted that there is a wire hole 7 on one side wall surface of the shell 1, the wire hole 7 penetrates through the shell 1 and is communicated with the inner cavity space 100;

[0029] It should be noted that there are mutually matched installation columns 8 between the upper shell part 11 and the lower shell part 12, the columns are fixedly connected by bolts;

[0030] It should be noted that the fan wheel 2 is at least provided with one group, and the opposite volute is adapted to the fan wheel 2 and is also one group, in this structure, there are two groups which are arranged in a transverse interval, and the air outlet 400 on one side is relatively independent.

[0031] It should be noted that, since the volute is composed of two groups of identical structures, the extension 500 is also composed of two parts.

[0032] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A cushion fan, characterized in that, include: The housing has an air guide and a fan wheel installed inside the housing. The housing has an internal cavity space that is connected to the air guide. It also has a volute adapted to the fan wheel and a space for airflow movement. The volute has an air outlet and an air inlet. When the fan wheel rotates, the airflow in the air inlet moves with the fan wheel and begins to guide the airflow in the internal cavity space and the air guide into the volute, and then discharges from the air outlet. The housing is a rectangular box, and the air vents are located at the front and rear ends of the housing; The air vent is equipped with an air guide plate.

2. A cushion fan according to claim 1, characterized in that, The housing includes an upper shell and a lower shell.

3. A cushion fan according to claim 2, characterized in that, Both the upper and lower shells are provided with grooves, and the outer periphery of the air guide plate is provided with a protruding edge that matches the groove.

4. A cushion fan according to claim 2, characterized in that, The air inlet is located above the volute, and the air outlet is located on one side of the volute.

5. A cushion fan according to claim 4, characterized in that, The air outlet is located at the air guide with a relatively sealing surface.

6. A cushion fan according to claim 5, characterized in that, The volute includes a volute seat and a volute cover.

7. A seat fan according to claim 6, characterized in that, The volute is provided with an extension, and the upper shell has a sealing part, which forms a relatively sealed surface with the extension, consisting only of an air outlet.

8. A seat cushion fan according to claim 7, characterized in that, The housing contains at least one set of fan wheels, which are fitted with a volute housing with a separate air outlet.

9. A seat fan according to claim 1, characterized in that, The casing has wire holes on one side wall.

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