Diagonal flow fan

Abstract

The present application discloses a diagonal flow fan, which belongs to the field of fans. The diagonal flow fan comprises: an outer cylinder; an inner cylinder, which is arranged on the outer cylinder; a motor, which is arranged on the inner cylinder; an impeller, which is arranged on the output end of the motor; a guide vane, which is arranged on the inner cylinder; the diagonal flow fan also comprises: an abutment, a fixing part, an elastic part, and a limiting part; the abutment is slidably arranged on the inner cylinder; the fixing part is slidably arranged on the inner cylinder; the elastic part is used to connect the fixing part and the inner cylinder; the limiting part is fixed on the inner cylinder; wherein the impeller is conical; a sliding groove is provided on the inner cylinder, and the elastic part and the fixing part are located in the sliding groove; the fixing part is used to connect the elastic part and the abutment; the limiting part is located at the notch of the sliding groove; the abutment abuts against the impeller. The beneficial effect of the present application is to provide a diagonal flow fan which can reduce the resistance of the diagonal flow fan to the air when the diagonal flow fan inhales air and increase the size of the wind force.

Description

Technical Field

[0001] The present application relates to the field of fans, and in particular to a diagonal flow fan. Background Art

[0002] The diagonal flow fan, also known as the mixed flow fan, is a fan between the axial flow fan and the centrifugal fan. It drives the fan blades through the rotation of the click to generate wind for ventilation. It is widely used in various occasions that require ventilation and has good use effect.

[0003] The structure can refer to the public document of a diagonal flow fan with application number CN202021861452.6. In this document, due to the setting of the mounting block, when the diagonal flow fan is in use, air is inhaled and the airflow will hit the mounting block, increasing the resistance to wind entry, thereby reducing the size of the wind force.

[0004] Currently, there is a need for a diagonal flow fan that can reduce the resistance of airflow entering the fan and increase the wind force. Summary of the invention

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a diagonal flow fan, including: an outer cylinder; an inner cylinder, arranged on the outer cylinder; a motor, arranged on the inner cylinder; an impeller, arranged on the output end of the motor; a guide vane, arranged on the inner cylinder; the diagonal flow fan also includes: an abutment, a fixing part, an elastic part, and a limiting part; the abutment is slidably arranged on the inner cylinder; the fixing part is slidably arranged on the inner cylinder; the elastic part is used to connect the fixing part and the inner cylinder; the limiting part is fixed on the inner cylinder; wherein the impeller is conical; a sliding groove is opened on the inner cylinder, and the elastic part and the fixing part are located in the sliding groove; the fixing part is used to connect the elastic part and the abutment; the limiting part is located at the notch of the sliding groove; the abutment abuts against the impeller.

[0007] Furthermore, the fixing part includes: a contact part and a guide part; the contact part is fixed on the elastic part; the guide part is fixed on one end of the contact part away from the elastic part; wherein, a side of the contact part close to the limiting part is the contact surface; a side of the limiting part close to the contact part is the limiting surface; the contact surfaces contact each other.

[0008] Furthermore, a through hole is provided on the limiting member for the guide portion to pass through; the limiting member is connected to the sliding groove via threads.

[0009] Furthermore, a threaded groove is provided on one end of the guide portion away from the abutting portion; a threaded hole is provided on the abutting member so that the abutting member can be fixed to the guide portion by bolts.

[0010] Furthermore, the abutment member comprises: a fixing portion and a windshield portion; the fixing portion is fixed on the guide portion; the windshield portion is fixed on the fixing portion; wherein the inner cylinder has a placement space for placing the windshield portion.

[0011] Furthermore, the diagonal flow fan also includes: a rolling device; the rolling device is arranged on the fixed part; the rolling device includes: a rotating part and a rolling part; the rotating part is rotatably arranged on the fixed part; the rolling part is rollingly arranged on the fixed part; wherein, the rotating part abuts against the rolling part; the impeller abuts against the rotating part; a rolling space for the rolling part to be placed is opened on the fixed part, and a rolling surface abutting against the rolling part is provided in the rolling space; a rotating groove for the rotating part to be placed is opened on the fixed part.

[0012] Furthermore, the rotating groove has: a placement area and a limiting area; the placement area is connected to the rolling space; grooves are opened on the two side walls of the placement area to form the limiting area; wherein the limiting area is located between the placement area and the rolling space.

[0013] Furthermore, the diagonal flow fan also includes: an installation component; the installation component includes: a blocking member and a mounting member; the blocking member is arranged on the fixed part, and is used to block the rotating member so that the rotating member is located in the placement area; the mounting member is used to connect the blocking member and the fixed part so that the blocking member is fixed on the fixed part.

[0014] The beneficial effect of the present application is that it provides a diagonal flow fan which can reduce the resistance of the diagonal flow fan to the air when the diagonal flow fan inhales air and increase the size of the wind force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0016] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0017] In the attached picture:

[0018] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of the internal structure of the diagonal flow fan;

[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0022] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the abutment member.

[0023] Reference numerals:

[0024] 100, diagonal flow fan; 101, outer cylinder; 102, inner cylinder; 103, motor; 104, impeller; 105, guide vane; 106, abutment member; 107, fixing member; 108, elastic member; 109, limiting member; 106a, fixing portion; 106b, wind shielding portion; 106c, placement space; 102a, sliding groove; 107a, abutment portion; 107b, guiding portion; 109a, limiting surface; 107c, abutment surface; 107d, threaded groove; 106c, threaded hole; 110, rolling device; 110a, rotating member; 110b, rolling member; 110c, rolling space; 110d, rolling surface; 110e, rotating groove; 110f, placement area; 110g, limiting area; 111, blocking member; 112, mounting member. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0026] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0027] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0029] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] Reference Figure 1-4 The oblique flow fan 100 includes: an outer cylinder 101, an inner cylinder 102, a motor 103, an impeller 104, a guide vane 105, an abutment 106, a fixing member 107, an elastic member 108, and a stopper 109; the inner cylinder 102 is cylindrical and is located inside the outer cylinder 101; the motor 103 is fixed inside the inner cylinder 102, and the motor 103 is in the prior art and is not described here; the impeller 104 is fixed on the output end of the motor 103, and the impeller 104 is conical; the guide vane 105 is used to connect the outer cylinder 101 and the inner cylinder 102; the abutment 106 is slidably arranged on the inner cylinder 102 along the axis of the inner cylinder 102.

[0031] When using the diagonal flow fan 100, the motor 103 is turned on first, and the motor 103 drives the impeller 104 to rotate. The rotation of the impeller 104 will bring in air to form an airflow. The airflow passes through the conical impeller 104 and enters between the outer cylinder 101 and the inner cylinder 102 without directly impacting the motor 103, thereby reducing the resistance of the airflow entering the diagonal flow fan 100 and increasing the wind force.

[0032] When installing the impeller 104, due to assembly errors and other reasons, a gap may exist between the impeller 104 and the inner tube 102. This gap may cause the airflow to be disturbed when passing through the gap, thereby increasing the noise generated by the airflow. In order to avoid airflow turbulence and make the airflow more stable, the following structure is also provided.

[0033] The abutment member 106 includes: a fixing portion 106a and a wind shielding portion 106b; the inner tube 102 has a placement space 106c for placing the fixing portion 106a, and the fixing portion 106a is slidably disposed in the placement space 106c; the fixing portion 106a is fixed to one end of the wind shielding portion 106b away from the placement space 106c, and the fixing portion 106a abuts against the impeller 104.

[0034] The side wall of the inner cylinder 102 is provided with a sliding groove 102a for the fixing member 107 to be placed therein. The fixing member 107 can slide in the sliding groove 102a. The fixing member 107 comprises: an abutting portion 107a and a guiding portion 107b; the abutting portion 107a is fixed to one end of the elastic member 108, and the abutting portion 107a is in the shape of a disc; the guiding portion 107b is integrally formed on the abutting portion 107a, and is located at one end of the abutting portion 107a away from the elastic member 108, and the guiding portion 107b is in the shape of a cylinder, and the diameter of the guiding portion 107b is smaller than that of the abutting portion The elastic member 108 is a spring, one end of which is connected to the bottom surface of the sliding groove 102a, and the other end of the spring is connected to the abutting portion 107a; the limiting member 109 is threadedly connected to the notch of the sliding groove 102a, and a through hole is provided on the limiting member 109 for only the guide portion 107b to pass through; one end surface of the limiting member 109 close to the abutting portion 107a is a limiting surface 109a; one end surface of the abutting portion 107a close to the limiting member 109 is an abutting surface 107c, and the abutting surface 107c can abut against the limiting surface 109a.

[0035] A thread groove 107d is formed on the end surface of the guide portion 107b away from the abutment portion 107a, and a through hole or threaded hole 106c corresponding to the thread groove 107d is formed on the fixing portion 106a so that the fixing portion 106a can be fixed to the guide portion 107b by bolts.

[0036] When installing the impeller 104, the impeller 104 will press against the fixing portion 106a, and the wind shield portion 106b will be pressed into the placement space 106c. The elastic force of the elastic member 108 will be transmitted to the fixing portion 106a, so that the fixing portion 106a is always in contact with the impeller 104, eliminating the installation gap between the impeller 104 and the inner tube 102, thereby reducing the interference with the airflow, making the airflow more stable, and the sound generated by the stable airflow is smaller.

[0037] When the impeller 104 abuts against the fixing part 106a, when the diagonal flow fan 100 is turned on, the motor 103 drives the impeller 104 to rotate. The rotation of the impeller 104 will generate friction with the fixing part 106a. The friction will cause the diagonal flow fan 100 to make abnormal noises during operation. After a long period of operation, the impeller 104 and the fixing part 106a will cause overheating and damage to components. In order to solve the above problems, a rolling device 110 is also provided on the diagonal flow fan 100.

[0038] The rolling device 110 is arranged on the fixed part 106a; the rolling device 110 includes: a rotating member 110a and a rolling member 110b; a rolling space 110c is opened on the fixed part 106a, and a rolling surface 110d is provided in the rolling space 110c. The rolling member 110b is located in the rolling space 110c, and the rolling member 110b is a roller, and the rolling surface of the roller is against the rolling surface 110d; a rotating groove 110e for the rotating member 110a to be placed is also opened on the fixed part 106a, so that the rotating member 110a can rotate with the center of the inner cylinder 102 as the rotation center, and the rotating member 110a is rotatably arranged in the rotating groove 110e, and the rotating groove 110e includes: a placement area 110f and a limiting area 110g; the placement area 110f is connected to the rolling space 110c; the limiting area is formed by grooves on the two side walls of the placement area 110f.

[0039] The impeller 104 will abut against the rotating member 110a. When the impeller 104 rotates, it will drive the rotating member 110a to rotate synchronously. The rolling member 110b can greatly reduce the friction between the rotating member 110a and the fixed portion 106a, making the rotating member 110a rotate more smoothly.

[0040] When the impeller 104 drives the rotating member 110a to rotate, if the fixed portion 106a between the rotating member 110a and the fixed portion 106a is stable, the rotating member 110a will be separated from the rotating groove 110e. In order to prevent the rotating member 110a from being separated from the rotating groove 110e during rotation, a mounting assembly is also provided on the diagonal flow fan 100.

[0041] The installation assembly includes: a blocking member 111 and a mounting member 112; the blocking member 111 is arranged on the fixed portion 106a, and is used to block the rotating member 110a, so that the rotating member 110a is always located in the placement area 110f during movement; the mounting member 112 is used to connect the fixed portion 106a and the blocking member 111, and install the blocking member 111 on the fixed portion 106a, and the mounting member 112 can be a bolt.

[0042] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A diagonal flow fan, comprising: outer cylinder; An inner cylinder, arranged on the outer cylinder; The motor is arranged on the inner cylinder; An impeller is arranged on the output end of the motor; A guide vane is arranged on the inner cylinder; Features: The diagonal flow fan also includes: Abutment, fixing, elastic, and limiting member; the abutment is slidably disposed on the inner tube; the fixing is slidably disposed on the inner tube; the elastic member is used to connect the fixing and the inner tube; the limiting member is fixed on the inner tube; Wherein, the impeller is conical; a sliding groove is provided on the inner cylinder, and the elastic member and the fixing member are located in the sliding groove; the fixing member is used to connect the elastic member and the abutting member; the limiting member is located at the notch of the sliding groove; the abutting member abuts against the impeller; The fixing member comprises: an abutting portion and a guiding portion; the abutting portion is fixed on the elastic member; the guiding portion is fixed on an end of the abutting portion away from the elastic member; Wherein, a side of the abutting portion close to the limiting member is abutting surface; a side of the limiting member close to the abutting portion is a limiting surface; the abutting surface abuts against the limiting surface; The abutment member comprises: a fixing portion and a wind shielding portion; the fixing portion is fixed on the guide portion; the wind shielding portion is fixed on the fixing portion; The diagonal flow fan further comprises: a rolling device; the rolling device is arranged on the fixed part; the rolling device comprises: a rotating member and a rolling member; the rotating member is rotatably arranged on the fixed part; the rolling member is rotatably arranged on the fixed part; Among them, the rotating part abuts against the rolling part; the impeller abuts against the rotating part; the fixed part is provided with a rolling space for the rolling part to be placed, and the rolling space has a rolling surface abutting against the rolling part; the fixed part is provided with a rotating groove for the rotating part to be placed.

2. The diagonal flow fan according to claim 1, characterized in that: The limiting member is provided with a through hole for the guide portion to pass through; the limiting member is connected to the sliding groove through threads.

3. The diagonal flow fan according to claim 1, characterized in that: A threaded groove is provided on one end of the guide portion away from the abutment portion; a threaded hole is provided on the abutment member so that the abutment member can be fixed on the guide portion by bolts.

4. The diagonal flow fan according to claim 3, characterized in that: The rotating groove has: a placement area and a limiting area; the placement area is connected to the rolling space; grooves are formed on the two side walls of the placement area to form the limiting area; Wherein, the limiting area is located between the placement area and the rolling space.

5. The diagonal flow fan according to claim 4, characterized in that: The diagonal flow fan also includes: an installation component; the installation component includes: a blocking member and a mounting member; the blocking member is arranged on the fixed part, and is used to block the rotating member so that the rotating member is located in the placement area; the mounting member is used to connect the blocking member and the fixed part so that the blocking member is fixed on the fixed part.

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