Novel air blower

Abstract

The utility model relates to the technical field of air blowers, and particularly discloses a novel air blower, which comprises a main shell, an outer shell, an impeller and a motor, the main shell comprises a first shell and a second shell, the first shell and the second shell are enclosed to form an air blowing cavity, the surface of the main shell is provided with an air outlet communicated with the air blowing cavity, and the air outlet is communicated with the air blowing cavity. The second shell is provided with a second air inlet communicating with the air blowing cavity. The impeller is arranged in the air blowing cavity, and the motor is fixed to the outer side of the second shell and connected with the impeller; the outer shell is located on the outer side of the second shell and connected with the second shell, the motor is covered with the outer shell, and a first air inlet is formed in the outer shell; a supporting strip is arranged on the outer side face of the second shell and abuts against the inner side face of the outer shell. According to the utility model, the outer shell can be opened, so that the outer shell is easier to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of blowers, in particular to a novel blower. Background Art

[0002] A blower is a device that imparts energy to a gas to increase its pressure, speed, and discharge it, including large blowers for production equipment and clean rooms, as well as built-in small blowers for various household appliances and personal computers. Currently, the mainstream on the market is the centrifugal turbine blower, which has a turbine inside. The inhaled air is compressed under the influence of the centrifugal force generated by the rotation of the impeller and becomes high-pressure air sprayed to the outside.

[0003] For the centrifugal turbine blower, in the prior art, there has also appeared a blower with the motor placed outside the blower cavity. Correspondingly, a housing is required to enclose the motor. Due to the large depth of the housing, there is a problem that it is prone to deformation, which makes it difficult to assemble the housing. Summary of the Utility Model

[0004] The utility model provides a novel blower that can expand the housing, making the housing easier to assemble.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a novel blower, including a main housing, a housing, an impeller, and a motor. The main housing includes a first housing and a second housing. The first housing and the second housing enclose to form a blower cavity. An air outlet communicating with the blower cavity is provided on the surface of the main housing. A second air inlet communicating with the blower cavity is provided on the second housing. The impeller is arranged in the blower cavity. The motor is fixed outside the second housing and is connected to the impeller. The housing is located outside the second housing and is connected to the second housing. The housing encloses the motor. A first air inlet is provided on the housing. A support strip is provided on the outer side surface of the second housing, and the support strip abuts against the inner side surface of the housing.

[0007] In some embodiments, the support strip has a guiding surface. In the direction of inserting the support strip into the inner side of the housing, the guiding surface gradually deviates towards the center of the circumference of the housing, and the guiding surface is used to abut against the inner side surface of the housing.

[0008] In some embodiments, a convex edge protrudes from the circumference of the housing. A groove adapted to the convex edge is provided on the outer side surface of the second housing. The support strip is located inside the groove, and the convex edge is inserted into the groove.

[0009] In some embodiments, the peripheral edge of the first housing has a first rib protruding outwardly, and the peripheral edge of the second housing has a second rib protruding outwardly. The first rib and the second rib are fastened together by screws.

[0010] In some embodiments, the surface of the second rib is provided with a non-circular hole adapted to the head of the screw, and the head of the screw is embedded in the non-circular hole.

[0011] In some embodiments, a plurality of brackets are fixed on the motor, and the brackets are fixed on the outer side surface of the second housing.

[0012] In some embodiments, a support rod is further fixed on the motor, and the support rod is fixedly connected to the inner side surface of the outer housing.

[0013] In some embodiments, a handle is provided on the outer housing.

[0014] In some embodiments, the handle includes an I-shaped skeleton and a plurality of reinforcing ribs provided on the skeleton.

[0015] In some embodiments, a power switch and a power cord connector are fixed on the outer housing.

[0016] The utility model has at least the following beneficial effects: The utility model is provided with a support bar on the outer side surface of the second housing, and the support bar abuts against the inner side surface of the outer housing, so as to support the outer housing, reduce the deformation of the outer housing, and thus facilitate the assembly of the outer housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a novel blower according to an embodiment of the utility model;

[0018] Figure 2 is an exploded schematic diagram of a novel blower according to an embodiment of the utility model;

[0019] Figure 3 is a schematic structural diagram of a second housing according to an embodiment of the utility model;

[0020] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0021] Figure 5 is a schematic structural diagram of an outer housing according to an embodiment of the utility model;

[0022] Figure 6 is Figure 1 a cross-sectional schematic diagram of the novel blower shown in

[0023] Figure 7 is Figure 6Enlarged schematic view at position B;

[0024] Figure 8 Side view schematic of the second housing of an embodiment of the present utility model;

[0025] Figure 9 Side view schematic of the first housing of an embodiment of the present utility model;

[0026] Figure 10 Structural schematic of the outer housing of an embodiment of the present utility model;

[0027] Figure 11 Cross-sectional view schematic of the handle of an embodiment of the present utility model;

[0028] Figure 12 Structural schematic of the handle of an embodiment of the present utility model.

[0029] Among them, the reference numerals are:

[0030] Main housing 100, air outlet 101, second air inlet 102, air outlet baffle 103, first housing 110, first rib 111, second housing 120, support bar 121, guiding surface 122, groove 123, second rib 124, non-circular hole 125;

[0031] Outer housing 200, first air inlet 201, air inlet grille 202, convex edge 210, power switch 230, power cord connector 240, handle 250, skeleton 251, reinforcing rib 252;

[0032] Impeller 310, motor 320, bracket 330, support rod 340. Detailed implementation manners

[0033] The present utility model provides the following description with reference to the drawings to help comprehensively understand various embodiments of the present utility model as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding, but these details should be regarded as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present utility model.

[0034] In the description of the present utility model, the orientation descriptions such as up, down, front, back, left, right, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0035] It should be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element, or there can be an intermediate element (e.g., a third element) between the element and the other element.

[0036] An embodiment of the present utility model provides a novel blower, as Figure 1-7 shown, which includes a main housing 100, an outer housing 200, an impeller 310, and a motor 320. The main housing 100 includes a first housing 110 and a second housing 120. The main housing 100 is set as a split structure, which is convenient for assembling other components such as the impeller 310 inside the main housing 100. The first housing 110 and the second housing 120 enclose to form a blower cavity. An air outlet 101 communicating with the blower cavity is provided on the surface of the main housing 100. The air outlet 101 can be provided on the first housing 110, or the air outlet 101 can be provided on the second housing 120, or the air outlet 101 is formed by the enclosure of the first housing 110 and the second housing 120. The second housing 120 is provided with a second air inlet 102 communicating with the blower cavity. The impeller 310 is arranged in the blower cavity. The motor 320 is fixed on the outer side of the second housing 120 and is connected to the impeller 310. The motor 320 can drive the impeller 310 to rotate. The outer housing 200 is located on the outer side of the second housing 120 and is connected to the second housing 120. The outer housing 200 covers the motor 320 inside, playing a role of isolating and protecting the motor 320, and is used to form an air duct. The outer housing 200 is also provided with a first air inlet 201. After the motor 320 is powered on and operates, it drives the impeller 310 to rotate, so that the air flow enters from the first air inlet 201, enters the blower cavity through the second air inlet 102, and finally blows out through the air outlet 101, playing a role of blowing air.

[0037] In this embodiment, a support bar 121 is provided on the outer side surface of the second housing 120. The support bar 121 abuts against the inner side surface of the outer housing 200, so as to support the outer housing 200, reduce the deformation of the outer housing 200, enable the outer housing 200 to be accurately positioned, and thus be easy to assemble the outer housing 200.

[0038] In some embodiments, as Figure 4 and Figure 7 shown, the support bar 121 has a guiding surface 122. In the direction in which the support bar 121 is inserted into the inner side of the outer housing 200, the guiding surface 122 gradually deflects towards the center of the periphery of the outer housing 200. The guiding surface 122 is used to abut against the inner side surface of the outer housing 200.

[0039] During the process of installing the outer shell 200 into the second shell 120, the support bar 121 is inserted into the inner side of the outer shell 200, and the inner side surface of the periphery of the outer shell 200 abuts against the guide surface 122. As the insertion depth increases, the periphery of the outer shell 200 will gradually expand outward under the action of the guide surface 122, so that the originally deformed outer shell 200 is stretched open to maintain a relatively stable shape, which makes the installation of the outer shell 200 easier.

[0040] Furthermore, the outer shell 200 has a protruding convex edge 210 on its periphery, and the outer side surface of the second shell 120 is provided with a groove 123 matched with the convex edge 210, the support bar 121 is located on the inner side of the groove 123, and the convex edge 210 is inserted into the groove 123. The outer shell 200 is positioned by the cooperation of the convex edge 210 and the groove 123 to ensure that the outer shell 200 and the second shell 120 are assembled in place. At the same time, the sealing between the outer shell 200 and the second shell 120 can be strengthened to reduce airflow leakage.

[0041] The convex edge 210 may be arranged in a ring shape throughout the entire periphery of the outer shell 200, and correspondingly, the groove 123 may also be arranged in a ring shape. Alternatively, a plurality of convex edges 210 may be spaced apart on the periphery of the outer shell 200, and correspondingly, a plurality of grooves 123 may also be spaced apart.

[0042] In some embodiments, the outer shell 200 may be fixedly connected to the second shell 120 by screws, buckles or other methods.

[0043] In some embodiments, Figure 8 and Figure 9 As shown, the periphery of the first shell 110 has a first convex strip 111 protruding outward, and the periphery of the second shell 120 has a second convex strip 124 protruding outward, and the first convex strip 111 and the second convex strip 124 are fastened together by screws. In this way, the first shell 110 and the second shell 120 can be fastened together, and the screws will not extend into the blast cavity, so as not to affect the airflow in the blast cavity.

[0044] Furthermore, a non-circular hole 125 matching the head of the screw is provided on the surface of the second convex strip 124, and the head of the screw is embedded in the non-circular hole 125. When the screw is installed in place, the non-circular hole 125 can limit the loosening of the screw to improve stability. For example, if the head of the screw is hexagonal, the non-circular hole 125 can be a hexagonal hole.

[0045] Furthermore, the screw can pass through the first shell 110 and the second shell 120, and a nut is provided on the screw, and the nut is located on the outside of the first shell 110. When the nut and the screw are tightened, the head of the screw and the nut clamp the first shell 110 and the second shell 120 to fix the first shell 110 and the second shell 120 together.

[0046] In this embodiment, the second housing 120 can be formed by die-casting. During die-casting, the second screw is embedded in the second housing 120. When assembling the first housing 110 and the second housing 120, the process of finding screws is omitted, and the installation is more convenient.

[0047] In some embodiments, such as Figure 2 , Figure 3 and Figure 7 shown, a plurality of brackets 330 are fixed on the motor 320, and the brackets 330 are fixed on the outer side surface of the second housing 120, thereby mounting and fixing the entire motor 320. In this embodiment, the brackets 330 can be fixedly connected to the second housing 120 by screws.

[0048] Furthermore, a support rod 340 is also fixed on the motor 320, and the support rod 340 is fixedly connected to the inner side surface of the outer housing 200. Since the rotational speed of the blower is high and the vibration of the motor 320 is large, the support rod 340 provides strong support for the motor 320, reduces the vibration of the motor 320, and improves the stability of the motor 320. During transportation and placement, the motor 320 is not easily displaced, and the outer housing 200 is not easily deformed.

[0049] In some embodiments, such as Figure 5 and Figure 10 shown, a handle 250 is provided on the outer housing 200, which is convenient for the user to grip and further convenient for lifting the entire blower.

[0050] Furthermore, as Figure 11 and Figure 12 shown, the handle includes an I-shaped skeleton 251 and a plurality of reinforcing ribs 252 provided on the skeleton 251 to enhance the structural strength of the handle.

[0051] In some embodiments, such as Figure 2 and Figure 10 shown, a power switch 230 and a power cord connector 240 are fixed on the outer housing 200. The power switch 230 is used to control the conduction or disconnection of the power supply of the entire blower, and the power cord connector 240 can conveniently connect the power cord. Both the power switch 230 and the power cord connector 240 can adopt a sunken design and do not protrude from the surface of the outer housing 200, so that the power switch 230 and the power cord connector 240 are not easily damaged, and are not easily damaged during packaging and transportation.

[0052] In some embodiments, such as Figure 1 and Figure 2As shown, an air inlet grille 202 is fixed at the first air inlet 201 to prevent objects with larger sizes from entering the air blowing cavity, protecting the impeller 310 and the motor 320, and also preventing the air blowing cavity from being blocked by objects with larger sizes.

[0053] In some embodiments, as Figure 1 and Figure 2 shown, an air outlet baffle 103 is fixed at the air outlet 101. The air outlet baffle 103 can be opened or closed. When the air outlet baffle 103 is opened, the blower can be used normally. When the air outlet baffle 103 is closed, the air outlet 101 is sealed to prevent dust from entering the air blowing cavity, playing a role in dust-proof protection.

[0054] The terms and words used in the above description and claims are not limited to their literal meanings, but are used by the applicant to enable a clear and consistent understanding of the present utility model. Therefore, those skilled in the art should clearly understand that the description of the various embodiments of the present utility model provided above is only for the purpose of illustration, rather than for limiting the present utility model as defined by the appended claims and their equivalents.

Claims

1. A new type of blower, characterized in that: It includes a main housing, an outer housing, an impeller and a motor. The main housing includes a first housing and a second housing. The first housing and the second housing enclose to form a blower cavity. An air outlet communicating with the blower cavity is arranged on the surface of the main housing. A second air inlet communicating with the blower cavity is arranged on the second housing. The impeller is arranged in the blower cavity. The motor is fixed outside the second housing and is connected to the impeller. The outer housing is located outside the second housing and is connected to the second housing. The outer housing covers the motor inside. A first air inlet is arranged on the outer housing. A support bar is arranged on the outer side surface of the second housing. The support bar abuts against the inner side surface of the outer housing.

2. The novel blower according to claim 1, wherein: The support bar has a guiding surface. In the direction of inserting the support bar into the inner side of the outer housing, the guiding surface gradually deflects towards the center of the peripheral edge of the outer housing. The guiding surface is used to abut against the inner side surface of the outer housing.

3. The novel blower according to claim 2, characterized in that: The peripheral edge of the outer housing has a protruding convex edge. A groove adapted to the convex edge is arranged on the outer side surface of the second housing. The support bar is located inside the groove. The convex edge is inserted into the groove.

4. The novel blower according to claim 1, characterized in that: The peripheral edge of the first housing has a first convex strip protruding outward. The peripheral edge of the second housing has a second convex strip protruding outward. The first convex strip and the second convex strip are fastened together by screws.

5. The novel blower according to claim 4, wherein: A non-circular hole adapted to the head of the screw is arranged on the surface of the second convex strip. The head of the screw is embedded in the non-circular hole.

6. The novel blower according to claim 1, characterized in that: A plurality of brackets are fixed on the motor. The brackets are fixed on the outer side surface of the second housing.

7. The novel blower according to claim 6, characterized in that: A support rod is also fixed on the motor. The support rod is fixedly connected to the inner side surface of the outer housing.

8. The novel blower according to any one of claims 1-7, characterized in that: A handle is arranged on the outer housing.

9. The novel blower according to claim 8, characterized in that: The handle includes an I-shaped skeleton and a plurality of reinforcing ribs arranged on the skeleton.

10. The novel blower according to any one of claims 1-7, characterized in that: A power switch and a power cord connector are fixed on the outer housing.

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