Low noise ventilator

Abstract

The utility model discloses a low noise ventilator belongs to ventilation equipment technical field, including the sound-absorbing box, the ventilator body of setting in the sound-absorbing box and detachable installation's heat dissipation subassembly and dustproof filter component, wherein, dustproof filter component carries out quick locking to filter screen through the rotation of one stop ring with self -locking mechanism, and this self -locking mechanism includes the second limit board of spring drive, is used for clamping into the recess of stop ring, heat dissipation subassembly then through pressing and rotating a first limit post with spring, makes it with the first limit board of sound-absorbing box and connects, realizes quick fixing. The utility model discloses a combination of the basic noise reduction of sound-absorbing box and convenient maintenance design, ensures the long -term stability of heat dissipation and filtration efficiency, effectively prevents the noise rebound of the performance decline, not only convenient and efficient dismounting, can guarantee the equipment durable stable low noise operation effect more.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and in particular to a low-noise ventilator. Background Technology

[0002] Ventilation fans, as key equipment for achieving air circulation and exchange within a space, are widely used in industrial production and daily life. With people's increasing demands for comfort in their working and living environments, reducing the noise generated by ventilation fans during operation has become an important development direction in this field.

[0003] To effectively suppress noise, the common design approach in existing technologies is to completely enclose the fan motor and blades, which are the main noise sources, within a soundproof enclosure with sound insulation or absorption functions. While this enclosed structure can significantly reduce noise leakage, it also introduces new technical challenges. First, the enclosed operation of the motor inevitably generates heat, requiring a heat dissipation system to ensure stable operation. Second, to ensure the cleanliness of the air entering the enclosure and protect the internal components, a dust filter must also be installed at the air inlet.

[0004] In most existing low-noise ventilator structures, the aforementioned heat dissipation and dust filter components are often fixed to the silencer box using screws or integrated clips to ensure structural stability and sealing. This means that when regular cleaning or replacement of dust-covered filters or inefficient heat dissipation plates is required, maintenance personnel must use specialized tools and go through multiple disassembly and reassembly steps, making the entire process cumbersome and inconvenient. This inconvenient design not only reduces maintenance efficiency but may also lead users to neglect maintenance due to the hassle, ultimately affecting the equipment's heat dissipation and ventilation performance, and even shortening its lifespan.

[0005] Therefore, this utility model proposes a low-noise ventilator to address the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a low-noise ventilator, which aims to improve and solve the problem that the noise reduction structure of the ventilator is usually integrated and fixed with the heat dissipation and filtration structure, resulting in inconvenience and cumbersome process of disassembling and maintaining the heat dissipation plate and filter screen.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a low-noise ventilator, comprising a silencing box and a ventilator body disposed inside the silencing box; the low-noise ventilator further comprises a dustproof filter assembly and a heat dissipation assembly detachably installed in the silencing box.

[0008] The dustproof filter assembly includes a filter screen. The silencer box has a limiting groove for sliding installation of the filter screen. A limiting ring is rotatably connected to the silencer box. The filter screen is provided with a fixing box that engages with the limiting ring. The limiting ring has a groove. The fixing box is provided with a second limiting plate and a second spring for driving the second limiting plate. The second limiting plate is engaged in the groove under the drive of the second spring. This engagement achieves a stable lock on the filter screen.

[0009] Furthermore, the heat dissipation assembly includes a heat dissipation plate, and a first limiting plate for limiting the position of the heat dissipation plate is fixedly connected to the silencing box; a first limiting post is provided through the heat dissipation plate, and a first spring for driving it to reset is sleeved on the first limiting post; the end of the first limiting post is fixed by snapping with the first limiting plate; the heat dissipation assembly can be quickly assembled and disassembled by pressing and rotating the first limiting post.

[0010] Preferably, a limiting block for supporting the filter screen is also fixedly connected to the silencer box, and the limiting block is located at the bottom of the limiting groove.

[0011] Preferably, one end of the second spring abuts against the inner wall of the fixing box, and the other end abuts against the second limiting plate.

[0012] Preferably, the first limiting post is linked to a second limiting post that is symmetrically arranged therewith, and the second limiting post rotates synchronously with the first limiting post to engage with another first limiting plate.

[0013] Preferably, the heat dissipation assembly further includes a sliding plate that slides over the silencing box.

[0014] Preferably, as a further limitation of the aforementioned scheme, the sliding plate is provided with a through hole for the first limiting post to pass through.

[0015] Preferably, the heat dissipation assembly further includes a fan, which is fixedly mounted on one side of the heat dissipation plate to enhance the heat dissipation effect.

[0016] Preferably, the two ends of the first spring abut against the head of the heat sink and the head of the first limiting post, respectively.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by setting up a heat dissipation component that can be quickly disassembled and installed, the heat dissipation component can be locked and unlocked by pressing and rotating the spring limiting column and the silencer box. This solves the problem that heat dissipation components are usually fixedly connected in the prior art, which leads to difficult disassembly and maintenance, and is time-consuming and laborious. It achieves the technical effect of making it easy for users to quickly replace or clean the heat dissipation plate, ensuring the heat dissipation efficiency of the equipment, and thus extending the service life of the whole machine.

[0018] 2. In this utility model, by setting a dustproof filter component that can be quickly disassembled and installed, the component slides into the limiting groove and is fixed by a rotating limiting ring with a self-locking function, which solves the problem of complex filter screen installation structure and inconvenient disassembly and cleaning in the prior art. It achieves the technical effect of convenient and quick maintenance of the filter screen, ensuring the cleanliness of the incoming air, thereby protecting the internal core components and improving the stability of equipment operation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a low-noise ventilator proposed in this utility model; Figure 2 This is a schematic diagram of the heat dissipation plate structure of a low-noise ventilator proposed in this utility model. Figure 3 This is a schematic diagram of the second limiting column of a low-noise ventilator proposed in this utility model; Figure 4 This is a schematic diagram of the limiting groove structure of a low-noise ventilator proposed in this utility model; Figure 5 This is a schematic diagram of the second limiting plate of a low-noise ventilator proposed in this utility model.

[0020] Legend: 1. Silencer box; 2. Heat dissipation assembly; 201. Heat dissipation plate; 202. Sliding plate; 203. First limiting post; 204. First limiting plate; 205. First spring; 206. Second limiting post; 207. Fan; 3. Fan body; 4. Dustproof filter assembly; 401. Filter screen; 402. Limiting groove; 403. Limiting block; 404. Limiting ring; 405. Fixing box; 406. Second limiting plate; 407. Second spring; 408. Groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 5 This utility model provides a low-noise ventilator, which aims to solve the problem that in the prior art, the noise reduction structure of the ventilator is usually integrated and fixed with the heat dissipation and filtration structure, which makes it inconvenient and cumbersome to disassemble and maintain the heat dissipation plate 201 and the filter screen 401.

[0023] The low-noise ventilator includes a silencer box 1, which serves as the main installation body of the entire device. The ventilator body 3 is installed inside the silencer box 1, and a dust filter assembly 4 and a heat dissipation assembly 2 are detachably installed on the silencer box 1.

[0024] The dust filter assembly 4 includes a filter screen 401. A limiting groove 402 is provided on the silencer box 1 for the filter screen 401 to slide on. A limiting block 403 for supporting the filter screen 401 is also fixedly connected to the silencer box 1. The limiting block 403 is located at the bottom of the limiting groove 402. The filter screen 401 is initially positioned by sliding downwards along the limiting groove 402 and being supported by the limiting block 403. To achieve quick locking and unlocking of the filter screen 401, a limiting ring 404 is rotatably connected to the silencer box 1. A fixing box 405 that cooperates with the limiting ring 404 is provided on the filter screen 401. By rotating the limiting ring 404... The locking and fixing box 405 is further equipped with a self-locking mechanism to prevent the limiting ring 404 from accidentally rotating and loosening. Specifically, the limiting ring 404 has a groove 408, and the fixing box 405 is provided with a second limiting plate 406 and a second spring 407 for driving the second limiting plate 406. One end of the second spring 407 abuts against the inner wall of the fixing box 405, and the other end abuts against the second limiting plate 406. When the limiting ring 404 rotates to the correct position, the second limiting plate 406 automatically engages with the groove 408 under the elastic drive of the second spring 407, thereby locking the limiting ring 404.

[0025] The heat dissipation assembly 2 includes a heat dissipation plate 201. To enable quick installation and removal of the heat dissipation plate 201, a first limiting plate 204 for engaging and limiting the heat dissipation plate 201 is fixedly connected to the muffler box 1. A first limiting post 203, which can be pressed and rotated, passes through the heat dissipation plate 201. A first spring 205 for providing a reset elastic force is sleeved on the first limiting post 203. The two ends of the first spring 205 abut against the heads of the heat dissipation plate 201 and the first limiting post 203, respectively. By pressing the first limiting post 203 to compress the first spring 205, and then rotating the first limiting post 203 to engage or disengage its end from the first limiting plate 204, quick installation and removal of the heat dissipation plate 201 can be achieved. To ensure stability, the first limiting post 203 is linked to a second limiting post 206 symmetrically arranged thereto. The second limiting post 206 rotates synchronously with the first limiting post 203 to engage with the first limiting plate 204 on the other side of the muffler box 1, forming a symmetrical locking structure. In addition, the heat dissipation assembly 2 also includes a sliding plate 202, which slides over the surface of the heat dissipation plate 201. The sliding plate 202 has a through hole for the first limiting post 203 to pass through. To enhance the heat dissipation effect, the heat dissipation assembly 2 also includes a fan 207, which is fixedly arranged on one side of the heat dissipation plate 201 for active air cooling of the heat dissipation plate 201.

[0026] In a preferred embodiment, to provide reliable installation support for the filter screen 401, a positioning limit block 403 is also fixedly connected to the silencer box 1. The limit block 403 is specifically set at the bottom of the limit groove 402. When the filter screen 401 slides into the limit groove 402, the lower edge of the filter screen 401 abuts against the limit block 403.

[0027] As another preferred embodiment, in order to ensure that the second limiting plate 406 can reliably perform locking and unlocking actions, the assembly method of the second spring 407 is limited. Specifically, one end of the second spring 407 abuts against the inner wall of the fixing box 405, and the other end abuts against the second limiting plate 406, so that the spring force can be continuously applied to the second limiting plate 406 in the assembled state.

[0028] As a preferred embodiment, in order to enhance the stability and reliability of the heat sink 201 installation, a symmetrical locking structure is adopted. Specifically, the first limiting post 203 is linked to a second limiting post 206 symmetrically arranged therewith through a linkage mechanism. When the first limiting post 203 is rotated, the second limiting post 206 will rotate synchronously to simultaneously engage or disengage from the first limiting plate 204 on the other side.

[0029] In a preferred embodiment, to protect the surface of the heat sink 201, the heat dissipation assembly 2 also includes a sliding plate 202, which slides over the heat sink 201. In order to accommodate the installation and movement of the first limiting post 203, a through hole is provided on the sliding plate 202 for the first limiting post 203 to pass through.

[0030] In a preferred embodiment, to improve the overall heat dissipation efficiency, the heat dissipation assembly 2 also includes a fan 207, which is fixedly disposed on one side of the heat dissipation plate 201 and is used to actively blow air to dissipate heat from the heat dissipation plate 201.

[0031] As another preferred embodiment, in order to enable the first limiting post 203 to automatically reset and pop out after unlocking, the assembly position of the first spring 205 has been refined. Specifically, the two ends of the first spring 205 abut against the heat sink 201 and the head of the first limiting post 203, respectively.

[0032] Working principle: When the low-noise ventilator is running normally, the ventilator body 3 is placed inside the silencer box 1. The silencer box 1 serves as a basic noise reduction unit, which can effectively reduce the turbulence noise and friction noise generated when the air flows inside the box, thus achieving initial low-noise operation.

[0033] After the outside air enters the silencer box 1 through the dust filter component 4, it flows through the fan body 3. During this process, the heat generated by the fan body 3 is efficiently absorbed by the heat dissipation plate 201 of the heat dissipation component 2 and blown away by the fan 207. This design ensures that the fan body 3 can maintain a good working temperature in the closed silencer box 1, effectively avoiding performance degradation or damage caused by overheating of the equipment, thereby preventing noise rebound and ensuring the long-term quiet effect of the equipment.

[0034] Meanwhile, the dust filter assembly 4 not only provides clean air for the equipment, but its high-efficiency filtration capability and convenient maintenance design are also key to maintaining the overall performance and controlling noise. By ensuring smooth air intake, it can avoid the decrease in ventilation efficiency due to filter blockage and prevent the fan body 3 from generating additional noise or even damage due to increased load.

[0035] When maintenance of the heat dissipation component 2 is required, the operator only needs to rotate the first limiting post 203. Through a built-in linkage mechanism, the second limiting post 206 will rotate synchronously, and both will disengage from the lock of the first limiting plate 204. At this time, the first spring 205 will automatically push the first limiting post 203 to pop out, releasing the fixation of the heat dissipation plate 201, thereby achieving quick disassembly. During installation, the reverse operation can be performed to quickly reset. When cleaning or replacing the filter screen 401 is required, the operator pulls the second limiting plate 406 to compress the second spring 407 and disengage it from the lock of the groove 408. Then, by rotating the limiting ring 404, the filter screen 401 can be pulled upwards for maintenance. During installation, simply slide the filter screen 401 into the limiting groove 402 and rotate the limiting ring 404 until the second limiting plate 406 automatically engages with the groove 408 under the action of the spring, thus completing a secure installation.

[0036] In summary, this design, through the coordinated operation of the three major systems of noise reduction, heat dissipation, and filtration, not only achieves low-noise ventilation during initial operation, but also ensures that the two key components of heat dissipation and filtration can be easily maintained through convenient and quick disassembly and maintenance functions, thereby guaranteeing the long-term stability and low-noise operation of the equipment.

Claims

1. A low-noise ventilator, comprising a silencer box (1) and a ventilator body (3) disposed inside the silencer box (1), characterized in that, The low-noise ventilator also includes a dust filter assembly (4) and a heat dissipation assembly (2) that are detachably installed in the silencer box (1). The dust filter assembly (4) includes a filter screen (401), and the silencer box (1) is provided with a limiting groove (402) for the filter screen (401) to slide and install; a limiting ring (404) is rotatably connected to the silencer box (1), and a fixing box (405) is provided on the filter screen (401) for the limiting ring (404) to engage; a groove (408) is provided on the limiting ring (404), and a second limiting plate (406) and a second spring (407) for driving the second limiting plate (406) are provided on the fixing box (405); the second limiting plate (406) is engaged in the groove (408) under the drive of the second spring (407); The heat dissipation assembly (2) includes a heat dissipation plate (201), and a first limiting plate (204) for limiting the position of the heat dissipation plate (201) is fixedly connected to the silencing box (1); a first limiting post (203) is provided on the heat dissipation plate (201), and a first spring (205) for driving it to reset is sleeved on the first limiting post (203), and the end of the first limiting post (203) is used to engage and fix with the first limiting plate (204).

2. The low-noise ventilator according to claim 1, characterized in that, The silencer box (1) is also fixedly connected to a limiting block (403) for supporting the filter screen (401), and the limiting block (403) is located at the bottom of the limiting groove (402).

3. A low-noise ventilator according to claim 1, characterized in that, One end of the second spring (407) abuts against the inner wall of the fixing box (405), and the other end abuts against the second limiting plate (406).

4. A low-noise ventilator according to claim 1, characterized in that, The first limiting post (203) is linked to a second limiting post (206) that is symmetrically arranged therewith. The second limiting post (206) rotates synchronously with the first limiting post (203) to engage with another first limiting plate (204).

5. A low-noise ventilator according to claim 1, characterized in that, The heat dissipation assembly (2) also includes a sliding plate (202) which slides over the silencing box (1).

6. A low-noise ventilator according to claim 5, characterized in that, The sliding plate (202) has a through hole through which the first limiting post (203) passes.

7. A low-noise ventilator according to claim 1, characterized in that, The heat dissipation assembly (2) also includes a fan (207), which is fixedly disposed on one side of the heat dissipation plate (201).

8. A low-noise ventilator according to claim 1, characterized in that, The two ends of the first spring (205) abut against the head of the heat sink (201) and the first limiting post (203), respectively.

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