Blower

Abstract

The utility model relates to an air blower which comprises a machine head, an air inlet pipe, a filtering piece, a silencing piece and a controller, and the machine head is used for providing driving force for airflow flowing; the air inlet pipe is mounted on the machine head and is used for allowing airflow flowing to the machine head to pass through; the filtering piece and the silencing piece are both installed on the air inlet pipe. The controller is located in the air inlet pipe and at least used for providing electric signals needed by work of the machine head for the machine head. The air inlet pipe is used for bearing the filtering piece and the silencing piece, and the controller is arranged in the air inlet pipe, so that the air inlet pipe, the filtering piece, the silencing piece, the controller and the machine head form an integral structure, the space utilization is better, and the overall size of the air blower is smaller.

Description

Technical Field

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

[0002] Traditional blowers install independent filters on the blower housing. The filter housing is made of plastic or metal, with a filter screen inside and filter cotton in the middle. The filter volume is relatively large. In order to save costs, the filter area of ​​the traditional blower is relatively small relative to the volume of the blower cavity in the blower housing. At present, the speed of the improved DC high-speed blower for the traditional blower is more than ten times that of the traditional blower. Correspondingly, under the design of the same air output, the volume of the improved blower is also reduced by nearly ten times. Due to the increase in speed, the noise also becomes very large, and stronger silencing treatment is required. The improved DC high-speed blower consists of a housing, and a blower head, an air filter, filter cotton and a controller respectively located inside the housing. These components located inside the housing are independent of each other. The overall volume of the blower is about 4-5 times larger than that of the blower head, and the resistance of the filter to the air inlet is relatively large, which affects the working efficiency of the blower. At the same time, the improved blower will also increase the overall cost of the system. Utility Model Content

[0003] Problems to be solved by utility models

[0004] In view of at least one technical problem existing in the above background technology, the present disclosure provides a blower.

[0005] Solutions for solving problems

[0006] A first aspect of the present disclosure provides a blower, the blower comprising:

[0007] The handpiece is used to provide driving force for the airflow;

[0008] An air intake pipe, mounted on the machine head, and used for allowing airflow to flow toward the machine head to pass through;

[0009] A filter element and a muffler element, wherein the filter element and the muffler element are both installed on the air intake pipe; and

[0010] The controller is located inside the air inlet pipe, and the controller is at least used to provide the handpiece with an electrical signal required for its operation.

[0011] Optionally, the air intake pipe has an air intake port on its peripheral side, and the airflow entering the air intake pipe through the air intake port can flow toward the machine head.

[0012] Optionally, the first end of the air intake pipe is connected to the machine head, and the second end surface of the air intake pipe also has the air intake port; wherein the second end is the opposite end of the first end.

[0013] Optionally, the controller is located in the air flow path flowing through the air inlet pipe to the head.

[0014] Optionally, the inner diameter of the air inlet pipe is greater than or equal to the diameter at the outlet of the nose.

[0015] Optionally, the filter element at least surrounds the circumference of the air inlet pipe and covers the air inlet at a corresponding position; and / or the silencer is located on the end surface of the second end.

[0016] Optionally, the filter element is filter cotton, and / or the silencer element is silencer cotton.

[0017] Optionally, the blower further comprises: an outer cover, which is sleeved outside the air inlet pipe, and the filter element and / or the silencer element are both located between the outer cover and the air inlet pipe.

[0018] Optionally, the outer cover includes: a cylindrical side wall surrounding the circumference of the air inlet pipe, and a top wall closing the top of the side wall, the air inlet pipe is located in a chamber formed by the top wall and the side wall, and an air flow inlet is formed between the bottom of the side wall and the air inlet pipe.

[0019] Optionally, there is a gap between the outer cover and the filter element.

[0020] Optionally, the nose comprises:

[0021] A hood having a hollow inner cavity, wherein the hood is connected to the air intake pipe;

[0022] a motor located in the hood;

[0023] The impeller is connected to the output shaft of the motor and is located in the machine cover.

[0024] Effect of utility model

[0025] In the blower of the disclosed embodiment, the air intake pipe is used to carry the filter and the muffler, and the controller is arranged in the air intake pipe, so that the air intake pipe, the filter, the muffler, the controller and the head form an integrated structure, the space utilization is better, and the overall volume of the blower is smaller. Under the condition of the same air output and blower power, the overall volume and weight of the blower are reduced by more than 50% compared with the existing blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the appearance structure of a blower in an optional embodiment of the present disclosure;

[0027] Figure 2 for Figure 1 Schematic diagram of the structure after the middle and outer covers are separated from the rest of the blower;

[0028] Figure 3 for Figure 2 A schematic diagram of the structure of the middle blower without the silencer;

[0029] Figure 4 for Figure 3 Another structural diagram of the blower from another perspective;

[0030] Figure 5 for Figure 2 The schematic diagram of the structure of the middle blower after removing the silencer and filter;

[0031] Figure 6 for Figure 5 Schematic diagram of the structure of the blower from another perspective.

[0032] Description of Reference Numerals

[0033] 110. Outer cover; 111. Top wall; 112. Side wall; 113. Air flow inlet; 120. Machine head; 121. Machine cover; 122. Air outlet pipe; 1221. Thread; 131. Filter element; 132. Silencer; 140. Controller; 150. Air inlet pipe; 151. Air inlet; 152. Boss; 153. Inlet of machine head; 154. Cross plate. DETAILED DESCRIPTION

[0034] In order to make the technical solutions and beneficial effects of the embodiments of the present disclosure more obvious and easy to understand, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meaning as those in the technical field to which this application belongs.

[0035] In the description of the embodiments of the present disclosure, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the embodiments of the present disclosure, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the embodiments of the present disclosure.

[0036] In the embodiments of the present disclosure, the terms "first" and "second" are only used for the purpose of clear description and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly include at least one of the features. In the description of the embodiments of the present disclosure, the meaning of "multiple" is at least two, such as two, three, etc.; the meaning of "several" is at least one, such as one, two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the embodiments of the present disclosure, unless otherwise clearly defined, the terms "installed", "connected", "connected", "fixed", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0038] In the embodiments of the present disclosure, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0039] Figures 1 to 6 The structural diagram of the blower is shown as an example. Figures 1 to 6 As shown, the blower of the embodiment of the present disclosure includes: a head 120, an air intake pipe 150, a filter 131, a silencer 132 and a controller 140; wherein, the head 120 is used to provide a driving force for the air flow, the air intake pipe 150 is installed on the head 120, the air intake pipe 150 is used for the air flow to the head 120 to pass through, the filter 131 and the silencer 132 are both installed on the air intake pipe 150; the controller 140 is located inside the air intake pipe 150, and the controller 140 is at least used to provide the head 120 with the electrical signal required for its operation.

[0040] The air inlet pipe 150 is mounted on the head 120 so that the air inlet pipe 150 and the head 120 form a whole. This structure can save space and reduce the size of the blower, and can also make the blower leave the head 120 uncovered, and the head 120 is exposed to the external environment, which is more conducive to the heat dissipation of the head 120.

[0041] Without limitation, Figure 5 and Figure 6 As shown, the air intake pipe 150 and the nose 120 are arranged side by side in the axial direction.

[0042] like Figure 5 As shown, the air intake pipe 150 is installed at the inlet 153 of the head 120, so that the air intake pipe 150 covers the inlet 153 of the head 120 and guides the airflow of the external environment into the inlet 153 of the head 120. Figure 3 As shown, the airflow entering the inlet 153 of the handpiece 120 flows out through the air outlet pipe 122 below the handpiece 120 , and the air outlet pipe 122 and the air inlet pipe 150 are respectively located at opposite ends of the handpiece 120 .

[0043] A connection position may be provided on the air outlet pipe 122 to achieve connection with an external pipeline. Figure 1 The connection position is exemplarily shown as a thread 1221 , and the air outlet pipe 122 can be threadedly connected to an external pipeline through the thread 1221 .

[0044] The filter element 131 and the silencer 132 are installed on the air intake pipe 150, which facilitates the integration of the filter element 131 and the silencer 132 on the air intake pipe 150 and improves the integration effect. These integrated layouts are also conducive to reducing the size of the blower.

[0045] The controller 140 is located inside the air intake pipe 150, making full use of the space inside the air intake pipe 150 and avoiding the space occupied by the controller 140 being placed independently, so that the blower air intake pipe 150, the filter 131, the silencer 132, the controller 140 and the head 120 form an integrated structure, which makes better use of space and reduces the overall volume of the blower. In addition, arranging the air intake pipe 150, the filter 131 and the silencer 132 at the inlet 153 of the head 120 is more conducive to silencing the inlet 153 with higher noise, and can meet the noise reduction requirements on the basis of ensuring the reduction of the volume of the blower.

[0046] Under the condition of the same air output and blower power, the overall volume and weight of the blower in the embodiment of the present disclosure are reduced by more than 50% compared with the existing blower.

[0047] The air inlet pipe 150 can also serve as a supporting framework for the filter element 131 and the muffler 132 . Therefore, the filter element 131 and the muffler 132 can be made of flexible materials, and the filter element 131 and the air inlet pipe 150 can form a filter together.

[0048] The working principle of the blower is as follows: the air captured by the head 120 is increased in pressure, and then the pressure is released to achieve the flow of gas. The blower can be a Roots blower, a centrifugal blower, etc., but is not limited thereto.

[0049] The blower of the embodiment of the present disclosure is used for aquaculture. It is understandable that the blower can also be used in other fields such as sewage treatment and pneumatic transportation.

[0050] Figures 2 to 4 In order to make it easier to understand the structure of the blower, the filter 131 and the silencer 132 are transparent, and do not represent the actual product. The filter 131 is used to filter the airflow flowing to the head 120 to reduce the entry of foreign matter from the external environment into the head 120. The silencer 132 is used to reduce noise and reduce the noise of the blower. The filter 131 and the silencer 132 can refer to an integral component or two independent components.

[0051] The controller 140 may be an AC-to-DC frequency conversion controller 140, which is used to convert AC power into DC power for use by the handpiece 120. The electrical signals required for the handpiece 120 to work include but are not limited to DC voltage and / or DC current.

[0052] Optionally, the controller 140 may have other control functions in addition to converting AC power into DC power.

[0053] like Figure 5 and Figure 6 As shown, according to some optional embodiments, the first end of the air intake pipe 150 is connected to the machine head 120, and the second end surface of the air intake pipe 150 and the surrounding side between the two ends of the air intake pipe 150 have an air inlet 151, and the airflow entering the interior of the air intake pipe 150 through the air inlet 151 can flow to the machine head 120 through the first end; wherein the second end is the opposite end of the first end.

[0054] Compared with only setting the air inlet 151 on the end face of the air inlet pipe 150, the embodiment of the present disclosure sets the air inlet 151 on both the end face and the side face of the air inlet pipe 150, thereby increasing the number and distribution area of ​​the air inlet 151, which can increase the air intake volume, reduce the air intake resistance, and improve the ventilation efficiency of the blower.

[0055] Figure 5 and Figure 6 The substantially cylindrical air intake pipe 150 is shown as an example, and multiple air intake ports 151 are provided as much as possible on the end surface and the circumferential side of the second end of the air intake pipe 150 to increase the air intake volume as much as possible. The first end surface of the air intake pipe 150 is open to communicate with the inlet 153 of the handpiece 120, so that the gas in the air intake pipe 150 enters the handpiece 120 through the open port.

[0056] like Figure 5 and Figure 6 As shown, there are a plurality of air inlets 151 on the circumferential side of the air inlet pipe 150, and the plurality of air inlets 151 are distributed at intervals along the circumference of the air inlet pipe 150. The plurality may be two or more.

[0057] It is understandable that in an embodiment not shown in the present disclosure, the air inlet 151 on the second end face may be eliminated, and only the air inlet 151 on the peripheral side of the air inlet pipe 150 may be retained. Since the peripheral side area of ​​the air inlet pipe 150 is larger, a larger air inlet 151 may also be obtained to increase the air intake volume.

[0058] The second end of the air inlet pipe 150 may be designed to be open, such as Figure 5 As shown, a transverse plate 154 may also be provided at the opening of the second end, and the transverse plate 154 divides the opening of the second end into two air inlets 151. The transverse plate 154 may be used to support the filter element 131 and / or the muffler 132, and ensure the strength of the air inlet pipe 150, thereby reducing the risk of deformation of the air inlet pipe 150.

[0059] The air inlet pipe 150 is substantially coaxially distributed with the nose 120 .

[0060] In addition to increasing the number and area of ​​the air inlets 151, the volume of the air inlet pipe 150 may be appropriately increased (for example, increasing the inner diameter of the air inlet pipe 150) to further increase the air intake volume. Figure 3 and Figure 4 As shown, the inner diameter of the air intake pipe 150 may be greater than or equal to the diameter of the inlet 153 of the nose 120 to reduce obstruction of the inlet 153 and further increase the air intake volume.

[0061] According to some optional embodiments, the controller 140 is located in the air flow path flowing from the air inlet pipe 150 to the head 120, so that the flowing gas can be used to control the temperature. Figure 3 , Figure 5 and Figure 6 As exemplarily shown, the controller 140 is located on the inner wall of the air intake pipe 150 , and the radial projection of the controller 140 at least partially overlaps with the air intake port 151 .

[0062] like Figures 2 to 4 As shown, according to some optional embodiments, the filter element 131 at least surrounds the circumference of the air inlet pipe 150 and covers the air inlet 151 at a corresponding position; and / or the muffler 132 is located on the end surface of the second end. The filter element 131 and the muffler 132 are both arranged around the outside of the air inlet pipe 150 and wrap the air inlet pipe 150 together.

[0063] The filter element 131 and the muffler element 132 both include porous materials.

[0064] Combination Figure 5 , Figure 6 as well as Figure 3 and Figure 4 The first end of the air inlet pipe 150 has a boss 152 extending radially outward along the air inlet pipe 150 . The boss 152 can support the filter element 131 , so as to facilitate the installation and fixation of the filter element 131 .

[0065] Exemplarily, the filter element 131 is filter cotton, and / or the silencer 132 is silencer cotton.

[0066] It is understandable that the filter element 131 also has a certain silencing function, and the silencing element 132 can also allow gas to pass through.

[0067] The area of ​​the air inlet 151 on the peripheral side of the air inlet pipe 150 is larger than the area of ​​the air inlet 151 at the second end. Placing the filter element 131 on the peripheral side of the air inlet pipe 150 can better ensure the filtering effect.

[0068] like Figure 2 As shown, according to some optional embodiments, the blower further includes: an outer cover 110, the outer cover 110 is sleeved outside the air inlet pipe 150, and the filter 131 and / or the muffler 132 are located between the outer cover 110 and the air inlet pipe 150. The outer cover 110 can protect the filter 131 and the muffler 132.

[0069] The filter element 131 and the silencer 132 are arranged between the air inlet pipe 150 and the outer cover 110, and there is no need to provide an additional shell for the filter element 131 and the silencer 132, which saves materials and space.

[0070] like Figure 1 As shown, the outer cover 110 includes: a cylindrical side wall 112 surrounding the circumference of the air inlet pipe 150, and a top wall 111 closing the top of the side wall 112. The air inlet pipe 150 is located in a chamber formed by the top wall 111 and the side wall 112. An air inlet 113 is formed between the bottom of the side wall 112 and the air inlet pipe 150, that is, the side wall 112 is surrounded to form the air inlet 113. The air inlet 113 is arranged at the bottom of the outer cover 110, so that the blockage of the air inlet 113 by mosquitoes, hair and the like in the external environment can be reduced while ensuring the air intake.

[0071] Without limitation, the housing 110 is substantially cylindrical.

[0072] Optionally, there is a gap between the outer cover 110 and the filter element 131. The gap is connected to the airflow inlet 113, and the airflow entering the outer cover 110 through the airflow inlet 113 flows to the gap and passes through the filter element 131 to enter the air inlet 151. The gap can reduce the blockage of the air inlet 151 caused by foreign matter remaining in the filter element 131 after long-term use, and effectively ensure the smoothness of the air inlet 151.

[0073] The outer cover 110 also has the function of sound insulation and noise reduction. The gap between the outer cover 110 and the filter element 131 can also further isolate the noise and improve the noise reduction effect.

[0074] like Figure 1 As shown, according to some optional embodiments, the head 120 includes: a hood 121, a motor and an impeller, wherein the hood 121 has a hollow inner cavity, the hood 121 is connected to the air intake pipe 150; the motor is located in the hood 121; the impeller is connected to the output shaft of the motor and is located in the hood 121.

[0075] The air inlet pipe 150 is located at the inlet side of the impeller and can be fixed on the hood 121 by welding, screw connection or clamping.

[0076] The hood 121 also has the function of sound insulation and noise reduction.

[0077] Optionally, the motor speed is greater than 20,000 rpm. For example, the motor speed may be 30,000 rpm, 32,000 rpm, 40,000 rpm, or even higher. Using a motor with a higher speed can reduce the volume of the blower cavity (i.e., the volume of the hood 121), which is conducive to further reducing the volume of the blower.

[0078] Under the premise of no conflict, different embodiments or different technical features of the present disclosure can be arbitrarily combined to form new embodiments.

[0079] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the embodiments of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present disclosure that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present utility model and do not limit the scope of protection of the patent for the utility model.

Claims

1. A blower, characterized in that: The blower comprises: The handpiece is used to provide driving force for the airflow; An air intake pipe, mounted on the machine head, and used for allowing airflow to flow toward the machine head to pass through; A filter element and a muffler element, wherein the filter element and the muffler element are both installed on the air intake pipe; and The controller is located inside the air inlet pipe, and the controller is at least used to provide the handpiece with an electrical signal required for its operation.

2. The blower according to claim 1, characterized in that: The air inlet is provided on the peripheral side of the air inlet pipe, and the airflow entering the air inlet pipe through the air inlet can flow toward the machine head.

3. The blower according to claim 2, characterized in that: The first end of the air inlet pipe is connected to the machine head, and the second end surface of the air inlet pipe also has the air inlet; wherein the second end is the opposite end of the first end.

4. The blower according to any one of claims 1 to 3, characterized in that: The controller is located in the air flow path flowing through the air inlet pipe to the head.

5. The blower according to claim 2 or 3, characterized in that: The filter element at least surrounds the circumference of the air intake pipe and covers the air intake port at a corresponding position; and / or the silencer element is located on the end surface of the second end of the air intake pipe.

6. The blower according to claim 1, characterized in that: The filter element is filter cotton, and / or the silencer element is silencer cotton.

7. The blower according to claim 1, characterized in that: The blower also includes: The outer cover is sleeved outside the air inlet pipe, and the filter element and / or the silencer element are located between the outer cover and the air inlet pipe.

8. The blower according to claim 7, characterized in that: The outer cover includes: a cylindrical side wall surrounding the circumference of the air intake pipe, and a top wall closing the top of the side wall. The air intake pipe is located in a chamber formed by the top wall and the side wall. An air flow inlet is formed between the bottom of the side wall and the air intake pipe.

9. The blower according to claim 7 or 8, characterized in that: A gap is defined between the outer cover and the filter element.

10. The blower according to claim 1 or 2, characterized in that: The machine head comprises: A hood having a hollow inner cavity, wherein the hood is connected to the air intake pipe; a motor located in the hood; The impeller is connected to the output shaft of the motor and is located in the machine cover.

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