Fan assembly and laser processing equipment

Abstract

The utility model discloses a draught fan assembly and laser processing equipment, and relates to the technical field of draught fans, the draught fan assembly comprises an outer shell, an inner shell and a draught fan, the outer shell is provided with an installation space, the outer shell comprises a first abutting structure, and the first abutting structure is provided with an air outlet communicated with the installation space; at least part of the inner shell is arranged in the mounting space, the inner shell is provided with an inner cavity, the end, close to the air outlet, of the inner shell is provided with a receding opening which is opposite to and communicates with the air outlet, a second abutting structure which is arranged in the inner shell in a surrounding mode in the circumferential direction of the inner cavity is arranged in the inner shell, and one of the inner shell and the outer shell is provided with an air inlet communicating with the inner cavity; the fan is arranged in the inner cavity and clamped between the first abutting structure and the second abutting structure, and an airflow outlet of the fan faces the air outlet. According to the technical scheme, the fan can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and particularly relates to a fan assembly and a laser processing device. Background Art

[0002] A laser processing device is a processing device that uses a laser for processing operations such as engraving, cutting, welding, or marking, and has great advantages in many fields. In related technologies, in order to timely remove exhaust gas, soot, etc. generated during the processing, a smoke exhaust device is provided in the laser processing device, and the smoke exhaust device extracts and discharges the exhaust gas and soot during the processing through a fan; however, currently, the fan is usually fixedly installed by bolts, which is not convenient for disassembly and assembly. When the fan needs to be repaired or maintained, it is rather troublesome; moreover, the fan generates relatively large vibration and noise during operation, affecting the user experience. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a fan assembly and a laser processing device, aiming to make the fan convenient for disassembly and assembly.

[0004] To achieve the above purpose, the fan assembly proposed by the utility model includes:

[0005] A housing, the housing is provided with an installation space, the housing includes a first abutting structure, and the first abutting structure is provided with an air outlet communicating with the installation space;

[0006] An inner housing, at least part of the inner housing is arranged in the installation space, the inner housing is provided with an inner cavity, one end of the inner housing close to the air outlet is provided with an avoidance opening opposite to and communicating with the air outlet, and a second abutting structure is arranged in the inner housing and surrounds the inner cavity in the circumferential direction. One of the inner housing and the outer housing is provided with an air inlet communicating with the inner cavity; and

[0007] A fan, the fan is arranged in the inner cavity and clamped between the first abutting structure and the second abutting structure, and the air flow outlet of the fan is arranged towards the air outlet.

[0008] In an embodiment, the fan assembly further includes a sound insulation structure, and the sound insulation structure is arranged on the outer side wall of the inner housing and surrounds at least part of the circumferential direction of the inner housing.

[0009] In an embodiment, the outer side wall of the inner housing is provided with a first limiting structure, and the sound insulation structure is provided with a second limiting structure. The first limiting structure and the second limiting structure are in limiting cooperation to limit the sound insulation structure.

[0010] In one embodiment, a limiting rib is convexly provided on the outer wall of the inner shell as the first limiting structure, and a limiting groove is provided on the sound insulation structure as the second limiting structure, and the limiting rib is inserted into the limiting groove.

[0011] In one embodiment, a first sound insulation pad is provided in the outer shell, and the first sound insulation pad is arranged around the circumference of the air outlet and is clamped between the first abutting structure and the fan;

[0012] And / or, a second sound insulation pad is provided in the inner shell, and the second sound insulation pad is arranged around the circumference of the inner cavity and is clamped between the second abutting structure and the fan;

[0013] And / or, an installation opening communicating with the installation space is provided at one end of the outer shell away from the air outlet, and one end of the inner shell away from the air outlet is exposed at the installation opening and is provided with the air inlet.

[0014] In one embodiment, when the first sound insulation pad is provided in the outer shell, a part of the first sound insulation pad is clamped between the inner shell and the first abutting structure;

[0015] And / or, when the outer shell is provided with the installation opening and the inner shell is provided with the air inlet, the outer shell includes a first shell body and a wind guiding part. The first shell body has a first end and a second end arranged back to back. The installation space is provided in the first shell body. The installation opening is provided at the first end. The end side wall of the second end forms the first abutting structure. The wind guiding part is connected to the second end and is provided with an air outlet passage communicating with the installation space. The air outlet is provided at one end of the wind guiding part away from the first shell body;

[0016] And / or, the inner shell includes a second shell body and a bottom cover. The second shell body is inserted into the installation space. The inner cavity is provided in the second shell body. The avoiding opening and the air inlet are provided at both ends of the second shell body. The bottom cover is arranged outside the air inlet and is arranged around the second shell body. The bottom cover covers the installation opening, and the outer edge of the bottom cover abuts against the side wall of the outer shell.

[0017] In one embodiment, the fan assembly further includes a shock pad, and the shock pad is arranged around the circumference of the fan and is clamped between the side wall of the fan and the inner side wall of the inner shell;

[0018] And / or, the fan assembly further includes a control module and a third sound insulation pad. The control module is arranged on the outer side wall of the inner shell and is electrically connected to the fan. The third sound insulation pad is arranged between the outer shell and at least part of the control module;

[0019] And / or, the outer shell is provided with a connection hole, the inner shell is provided with a fixing hole, and the fan assembly further includes a locking member which passes through the connection hole and the fixing hole to connect the outer shell and the inner shell.

[0020] In one embodiment, the fan assembly further includes a wind guide cover. One end of the wind guide cover is detachably connected to the inner shell. The wind guide cover is provided with an air inlet channel communicating with the air inlet. At least one of an air inlet grille and a filter element is arranged inside the wind guide cover.

[0021] In one embodiment, the wind guide cover is provided with a first clamping structure, and the inner shell is provided with a second clamping structure. The first clamping structure and the second clamping structure are clamped and matched to enable the wind guide cover to be detachably connected to the inner shell;

[0022] And / or, when the filter element is arranged on the wind guide cover, the filter element is provided with a third clamping structure, and the wind guide cover is provided with a fourth clamping structure. The third clamping structure and the fourth clamping structure are clamped and matched to enable the filter element to be detachably connected to the wind guide cover.

[0023] In one embodiment, the fan is a double-boost fan;

[0024] And / or, the outer shell is provided with an air outlet grille which is arranged on one side of the first abutting structure facing the air outlet;

[0025] And / or, at least one outer wall of the outer shell is set as a mounting surface which is provided with buffer feet;

[0026] And / or, a hanging part is arranged on the outer side wall of the outer shell.

[0027] The present utility model further provides a laser processing device, which includes a device main body and the fan assembly as described in any one of the foregoing embodiments. A processing space is arranged inside the device main body, and an exhaust smoke channel communicating with the processing space is provided. The fan assembly is located outside the device main body, and the air inlet of the fan assembly is communicated with the exhaust smoke channel.

[0028] According to the technical solution of the present utility model, by clamping the fan between the first abutting structure of the outer shell and the second abutting structure of the inner shell, it is not necessary to use workpieces such as bolts to fix the fan, thereby improving the convenience of disassembly and assembly of the fan. Description of the Drawings

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0030] Figure 1 Structural diagram of an embodiment of the fan assembly provided by the present invention;

[0031] Figure 2 For Figure 1 Structural diagram of the fan assembly from another perspective in;

[0032] Figure 3 For Figure 1 Cross-sectional view of the fan assembly in;

[0033] Figure 4 For Figure 1 Exploded view of the fan assembly in;

[0034] Figure 5 Structural diagram of another embodiment of the fan assembly provided by the present invention;

[0035] Figure 6 For Figure 5 Cross-sectional view of the fan assembly in;

[0036] Figure 7 For Figure 5 Exploded view of the fan assembly in;

[0037] Figure 8 Structural diagram of the air guide cover and the inner shell in the fan assembly provided by the present invention;

[0038] Figure 9 Structural diagram of the air guide cover and the filter element in the fan assembly provided by the present invention.

[0039] Explanation of the reference numerals in the drawings:

[0040] 100. Fan assembly; 1. Outer shell; 11. First housing; 111. Installation space; 112. Installation opening; 113. First abutting structure; 114. Connection hole; 12. Air guide part; 121. Air outlet channel; 122. Air outlet; 13. Air outlet grille; 14. First sound insulation pad; 15. Buffer foot pad; 16. Hanging part; 17. Locking part;

[0041] 2. Inner shell; 21. Second housing; 211. Inner cavity; 212. Avoidance opening; 213. Air inlet; 214. Second abutting structure; 215. First clamping structure; 2151. Clamping groove; 216. Fixing hole; 22. Bottom cover; 23. First limiting structure; 231. Limiting rib; 24. Second sound insulation pad;

[0042] 3. Fan; 4. Sound insulation structure; 41. Second limiting structure; 411. Limiting groove; 5. Shock pad; 6. Control module; 61. Third sound insulation pad; 7. Air guide cover; 71. Air inlet channel; 72. Second clamping structure; 721. Clamping protrusion; 73. Fourth clamping structure; 731. Card slot; 74. Air inlet grille; 8. Filter element; 81. Third clamping structure; 811. Buckle.

[0043] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0045] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0047] The present utility model provides a fan assembly 100.

[0048] With reference to Figure 1 and Figure 3 In an embodiment of the present utility model, the fan assembly 100 includes a housing 1, an inner housing 2 and a fan 3. The housing 1 is provided with an installation space 111, and the housing 1 is provided with a first abutting structure 113. The first abutting structure 113 is provided with an air outlet 122 communicating with the installation space 111. At least a part of the inner housing 2 is disposed in the installation space 111. The inner housing 2 is provided with an inner cavity 211. One end of the inner housing 2 facing the air outlet 122 is provided with an avoidance opening 212. One end of the inner housing 2 adjacent to the installation opening 112 is provided with an air inlet 213. The inner housing 2 is provided with a second abutting structure 214 circumferentially arranged along the inner cavity 211. One of the inner housing 2 and the housing 1 is provided with an air inlet 213 communicating with the inner cavity 211. The fan 3 is disposed in the inner cavity 211 and is clamped between the first abutting structure 113 and the second abutting structure 214.

[0049] Specifically, the housing 1 serves as the installation base of the fan assembly 100, with an installation space 111 provided inside, and an air outlet 122 communicating with the installation space 111. A first abutting structure 113 is also provided inside the housing 1. The first abutting structure 113 can be the inner wall of the end portion near the air outlet 122 in the installation space 111. Taking the housing 1 as a cuboid structure as an example, the housing 1 has two end side walls arranged back to back in its length direction. One of the end side walls is provided with an installation opening 112, and the other end side wall is provided with an air outlet 122, and this end side wall simultaneously forms the first abutting structure 113. Additionally, in the following embodiment, the housing 1 can be set as a combined structure of a first housing 11 and a wind guiding portion 12, which will not be elaborated here. In some embodiments, the first abutting structure 113 can also be a rib or other structure protruding from the inner wall of the installation space 111. Optionally, the shape of the housing 1 can be a cuboid, a cube, a cylinder, or other regular or irregular structures, which is not limited herein.

[0050] The inner shell 2 serves as the bearing structure of the fan 3 and is provided with an inner cavity 211 that penetrates through both ends. One end opening of the inner shell 2 serves as an avoidance opening 212 for the fan 3 to enter and exit the inner cavity 211. When the inner shell 2 is installed in the installation space 111 of the outer shell 1, the end of the inner shell 2 provided with the avoidance opening 212 is arranged towards the air outlet 122, so that the air flow outlet of the fan 3 is arranged towards the air outlet 122; optionally, the inner shell 2 can be completely accommodated in the installation space 111. At this time, an air inlet communicating with the installation space 111 needs to be provided on the outer shell 1, and an air flow channel communicating the air inlet and the inner cavity 211 needs to be provided between the inner shell 2 and the outer shell 1 to ensure that the external air flow can flow to the fan 3 in the inner cavity 211; in addition, the inner shell 2 can also be partially exposed outside the outer shell 1. An air inlet 213 is provided on this part of the inner shell 2, and an installation opening 112 for the inner shell 2 to be exposed needs to be provided on the outer shell 1; for example, the end of the inner shell 2 provided with the air inlet 213 is located outside the installation space 111, or it can be flush with the installation opening 112, or the end of the inner shell 2 provided with the air inlet 213 can be recessed into the installation opening 112. In this embodiment, after the inner shell 2 is installed in the installation space 111, the side wall of the inner shell 2 between the two ends can be arranged at intervals from the inner side wall of the outer shell 1, so as to form a cavity between the inner shell 2 and the outer shell 1. A buffer structure or other structures for installing the fan assembly 100 can also be arranged in this cavity. For example, a control module such as a circuit board can be installed. This setting method makes the noise and vibration generated when the fan 3 in the inner cavity 211 operates not easily transmitted outward from the inner shell 2 to the outer shell 1, playing a good role in shock absorption, noise reduction and sound insulation. In the embodiment of the present application, the second abutting structure 214 can be formed by the end side wall provided with the air inlet 213, or ribs arranged around the inner cavity 211 can be arranged in the inner cavity 211. When the ribs or similar structures are used as the second abutting structure 214, the second abutting structure 214 can be a closed-loop structure or an open-loop structure, or at least two sub-structures arranged at intervals in the circumferential direction can be combined to form the second abutting structure 214; no limitation is made here.

[0051] Optionally, the inner shell 2 and the outer shell 1 can be connected by bolts, snap connections or other connection methods, and no limitation is made here.

[0052] The fan 3, as the main power source of the fan assembly 100, is set as an axial flow fan 3. The air inlet end and the air outlet end of the fan 3 are located on two opposite sides. The fan 3 is installed in the inner cavity 211, so that the air outlet end of the fan 3 is exposed on one side of the avoidance opening 212, so that the air flow outlet of the fan 3 is arranged towards the air outlet 122; optionally, the air outlet end of the fan 3 can be flush with the avoidance opening 212, or the air outlet end of the fan 3 can protrude from the avoidance opening 212. After the fan 3 is installed in the inner cavity 211 and the inner shell 2 is installed in the installation space 111, the fan 3 is clamped between the first abutting structure 113 and the second abutting structure 214, so as to be fixed in the outer shell 1, and there is no need to use workpieces such as bolts to fix the fan 3, which improves the convenience of disassembly and assembly of the fan 3.

[0053] Please refer to Figure 3 and Figure 4 , in an embodiment, the fan assembly 100 further includes a sound insulation structure 4. The sound insulation structure 4 is arranged on the outer side wall of the inner shell 2 and is arranged around at least part of the circumference of the inner shell 2.

[0054] In this embodiment, the sound insulation structure 4 can be set as sponge, rubber, polyurethane foam, polyethylene, polyvinyl fluoride (PVC) or other materials; covering the sound insulation structure 4 on the outer side of the inner shell 2 can be used to absorb the noise and vibration transmitted from the fan 3 to the side wall of the inner shell 2, reduce the noise and vibration transmitted to the outer shell 1, and improve the noise reduction and shock absorption effects of the fan assembly 100. Optionally, the sound insulation structure 4 can be wrapped around the outer side of the inner shell 2, or only wrapped around part of the side wall of the inner shell 2. For example, one side wall of the inner shell 2 can be not provided with the sound insulation structure 4, and a circuit board or other structures can be installed by using this side wall.

[0055] Optionally, the sound insulation structure 4 can be connected to the inner shell 2 by means of bonding, binding, etc., or the sound insulation structure 4 can be clamped by the inner shell 2 and the outer shell 1, which is not limited here.

[0056] Please refer to Figure 3 and Figure 4 , in an embodiment, the outer side wall of the inner shell 2 is provided with a first limiting structure 23, and the sound insulation structure 4 is provided with a second limiting structure 41. The first limiting structure 23 and the second limiting structure 41 are in limiting cooperation to limit the sound insulation structure 4.

[0057] In this embodiment, the first limiting structure 23 can be set as a convex structure such as a limiting rib 231 or a limiting post. Correspondingly, a limiting groove 411 or a limiting hole, etc. is provided on the sound insulation structure 4 as the second limiting structure 41, so that the first limiting structure 23 is inserted into the second limiting structure 41. In addition, a limiting groove can also be provided on the outer side wall of the inner shell 2 as the first limiting structure 23, so that at least part of the sound insulation structure 4 is embedded in the limiting groove. This setting method can avoid the problem of the sound insulation structure 4 being displaced and improve the overall structural stability.

[0058] Please refer to Figure 3 and Figure 4 , in an embodiment, a limiting rib 231 is convexly provided on the outer wall of the inner shell 2 as the first limiting structure 23, and a limiting groove 411 is provided on the sound insulation structure 4 as the second limiting structure 41, and the limiting rib 231 is inserted into the limiting groove 411.

[0059] In this embodiment, first connect the sound insulation structure 4 to the inner shell 2, insert the limiting rib 231 into the limiting groove 411, and then insert the inner shell 2, the sound insulation structure 4 and the fan 3 together into the installation space 111. Optionally, the limiting rib 231 can extend along the length direction of the inner shell 2, that is, the arrangement direction of the avoidance opening 212 and the air inlet 213, and one end of the limiting groove 411 provided on the sound insulation structure 4 penetrates to the edge adjacent to the avoidance opening 212. At this time, the extending direction of the limiting groove 411 and the limiting rib 231 is the same as the insertion direction of the inner shell 2 into the installation space 111, and the opening of the limiting groove 411 is located at one end inserted into the installation space 111, so as to avoid the separation of the sound insulation structure 4 from the inner shell 2 due to the friction between the outer shell 1 and the sound insulation structure 4, and ensure the stable connection between the sound insulation structure 4 and the inner shell 2. In some embodiments, the limiting rib 231 can also extend along the circumferential direction of the inner shell 2.

[0060] In an embodiment, a first sound insulation pad 14 is provided in the outer shell 1, and the first sound insulation pad 14 is arranged to surround the circumference of the air outlet 122 and is clamped between the first abutting structure 113 and the fan 3.

[0061] In this embodiment, a first sound insulation pad 14 is also provided in the fan assembly 100. The first sound insulation pad 14 can be made of sponge, rubber, polyurethane foam, polyethylene, polyvinyl fluoride (PVC) or other materials. Among them, the first sound insulation pad 14 is clamped between the first abutting structure 113 and the air outlet end of the fan 3. This setting method avoids the direct abutment of the fan 3 and the first abutting structure 113. The first sound insulation pad 14 can absorb the noise generated during the operation of the fan 3 and can reduce the transmission of the vibration during the operation of the fan 3 to the outside, playing a good role in sound insulation and noise reduction.

[0062] Optionally, the first sound insulation pad 14 can be fixed in the housing 1, for example, by bonding or interference fit to fix the first sound insulation pad 14 to the housing 1, so as to prevent the first sound insulation pad 14 from falling out of the installation space 111 when the inner housing 2 and the fan 3 are removed from the installation space 111. Of course, the first sound insulation pad 14 can also be fixedly connected to the fan 3 according to the usage requirements.

[0063] In an embodiment, a second sound insulation pad 24 is provided in the inner housing 2. The second sound insulation pad 24 is disposed around the circumference of the inner cavity 211 and is clamped between the second abutting structure 214 and the fan 3.

[0064] In this embodiment, a second sound insulation pad 24 is further provided in the fan assembly 100 and is clamped between the second abutting structure 214 and the air inlet end of the fan 3; the second sound insulation pad 24 can be made of sponge, rubber, polyurethane foam, polyethylene, polyvinyl fluoride (PVC) or other materials. This setting method avoids the direct abutment of the fan 3 against the second abutting structure 214. The second sound insulation pad 24 can absorb the noise generated during the operation of the fan 3 and can reduce the transmission of the vibration generated during the operation of the fan 3 to the outside, playing a good role in sound insulation and noise reduction.

[0065] Optionally, the second sound insulation pad 24 can be fixed in the inner housing 2, for example, by bonding or interference fit to fix the second sound insulation pad 24 to the inner housing 2, so as to prevent the second sound insulation pad 24 from falling off the inner housing 2 when the fan 3 is removed; of course, the second sound insulation pad 24 can also be fixedly connected to the fan 3 according to the usage requirements.

[0066] Optionally, both the first sound insulation pad 14 and the second sound insulation pad 24 can be provided in the fan assembly 100. The first sound insulation pad 14 and the second sound insulation pad 24 can be made of the same material or different materials.

[0067] Please refer to Figure 3 , in an embodiment, a part of the first sound insulation pad 14 is clamped between the inner housing 2 and the first abutting structure 113. With this setting method, while the inner housing 2 is fully inserted into the installation space 111 to improve the overall structural stability, it can prevent the direct abutment of the inner housing 2 against the first abutting structure 113, thereby reducing the noise and vibration transmitted from the fan 3 to the inner housing 2 and then transmitted to the housing 1, and improving the shock absorption, sound insulation and noise reduction performance.

[0068] Please refer to Figure 3 and Figure 4 , in an embodiment, the fan assembly 100 further includes a shock absorption pad 5. The shock absorption pad 5 is disposed around the circumference of the fan 3 and is clamped between the side wall of the fan 3 and the inner side wall of the inner housing 2.

[0069] In this embodiment, the shock-absorbing pad 5 is wrapped around the outside of the fan 3, and materials such as sponge, rubber, polyurethane foam, polyethylene, polyvinyl fluoride (PVC), or others can be used; the shock-absorbing pad 5 has a certain elasticity, which can play a role in buffering and shock absorption. It can not only reduce the vibration generated during the operation of the fan 3 from being transmitted to the inner shell 2, achieving a shock-absorbing effect, but also play a certain sound insulation role. In addition, the shock-absorbing pad 5 can also reduce the transmission of external vibration to the fan 3 to protect the fan 3. Optionally, the buffer pad can be an integral structure or composed of two or more split structures.

[0070] Please refer to Figure 3 and Figure 4 , in an embodiment, the fan assembly 100 further includes a control module 6 and a third sound insulation pad 61. The control module 6 is disposed on the outer sidewall of the inner shell 2 and is electrically connected to the fan 3. The third sound insulation pad 61 is disposed between the outer shell 1 and at least a part of the control module 6.

[0071] In this embodiment, the control module 6 can be set as a circuit board, which integrates electronic devices such as a processor and a controller, or an indicator light or other devices can be set; wires or flexible circuit boards can be set to connect the control module 6 and the fan 3. The control module 6 is fixed on the outer sidewall of the inner shell 2, which can prevent the control module 6 from interfering with the fan 3 when installed in the inner cavity 211, and there is no need to set a relatively large inner cavity 211; making full use of the internal space of the outer shell 1, the structural layout is reasonable, which is beneficial to reducing the volume of the fan assembly 100.

[0072] The setting of the third sound insulation pad 61 can play a good role in sound insulation and noise reduction at the position of the control module 6, and can reduce the vibration energy generated during the operation of the fan 3 from being transmitted to the outer shell 1 through the inner shell 2 and the control module 6, and can also prevent external vibration energy from being transmitted to the control module 6 through the outer shell 1, playing a protective role for the control module 6. In addition, in an embodiment, an indicator light is provided on the control module 6, and an opening for exposing the indicator light or a light guide column can be provided on the outer shell 1, so that users can judge the operating state of the fan assembly 100 by observing the display state of the indicator light. Optionally, two or more indicator lights are provided. At this time, the third sound insulation pad 61 can be used to separate the light-emitting areas of adjacent two indicator lights to avoid the problem of light crosstalk.

[0073] Please refer to Figure 2 and Figure 4 , in an embodiment, the outer shell 1 is provided with a connection hole 114, the inner shell 2 is provided with a fixing hole 216, and the fan assembly 100 further includes a locking member 17. The locking member 17 passes through the connection hole 114 and the fixing hole 216 to connect the outer shell 1 and the inner shell 2.

[0074] Among them, the fixing hole 216 can be set as a threaded hole, and correspondingly, the locking member 17 is set as a bolt; in this connection method, there is a high connection strength between the inner shell 2 and the outer shell 1, and the fan 3 can be stably clamped in the installation space 111. In some embodiments, the locking member 17 can also be inserted into the fixing hole 216 in an interference fit manner to connect with the inner shell 2. Optionally, the connection hole 114 and the fixing hole 216 can be arranged opposite to each other along the direction in which the inner shell 2 enters and exits the installation space 111, or the arrangement directions of the connection hole 114 and the fixing hole 216 can be perpendicular to the direction in which the inner shell 2 enters and exits the installation space 111.

[0075] Please refer to Figure 3 , an installation opening 112 communicating with the installation space 111 is formed at one end of the outer shell 1 away from the air outlet 122. One end of the inner shell 2 away from the air outlet 122 is exposed at the installation opening 112 and is provided with an air inlet 213. With this setting method, the inner shell 2 can pass through the installation opening 112 to enter and exit the installation space 111, and the disassembly and assembly direction of the inner shell 2 is the same as the clamping direction of the fan 3, which is more convenient for the installation and fixation of the fan 3.

[0076] Please refer to Figure 3 , in an embodiment, the outer shell 1 includes a first shell 11 and a wind guiding portion 12. The first shell 11 has a first end and a second end arranged back to back. An installation space 111 is provided inside the first shell 11. The first end is provided with an installation opening 112. The end side wall of the second end forms a first abutting structure 113. The wind guiding portion 12 is connected to the second end and is provided with an air outlet passage 121 communicating with the installation space 111. An air outlet 122 is provided at one end of the wind guiding portion 12 away from the first shell 11.

[0077] In this embodiment, the outer shell 1 includes a first housing 11 and a wind guiding portion 12. The first housing 11 can be set as a cuboid, a cylinder, a semi-cylinder or other regular or irregular structures. The first housing 11 is provided with an installation space 111, and the first housing 11 has a first end and a second end arranged back to back. The first end can be completely open to form an installation opening 112, and the end side wall of the second end forms a first abutting structure 113. The wind guiding portion 12 is connected to the second end. An air outlet channel 121 communicating with the installation space 111 is provided in the wind guiding portion 12. At this time, the air outlet 122 of the outer shell 1 is formed at one end of the wind guiding portion 12 away from the first housing 11, and it can also be regarded as the air outlet 122 penetrating from the first abutting structure 113 to the end of the wind guiding portion 12 away from the first abutting structure 113, so as to form an air outlet channel 121 in the wind guiding portion 12; the wind guiding portion 12 can be a straight tube structure, such as a cylinder, a cuboid or other shapes; this setting method can eliminate the need to provide ribs or other structures as the first abutting structure 113 in the outer shell 1, making the structure of the outer shell 1 relatively simple; and, the wind guiding portion 12 can be used to sleeved or inserted with an air outlet pipe, improving the convenience of connecting the outer shell 1 and the air outlet pipe. Optionally, the first housing 11 and the wind guiding portion 12 can be integrally formed or two separate structures connected to each other.

[0078] Please refer to Figure 3 and Figure 4 , in an embodiment, the inner shell 2 includes a second housing 21 and a bottom cover 22. The second housing 21 is inserted into the installation space 111. The second housing 21 is provided with an inner cavity 211. Avoidance openings 212 and air inlets 213 are provided at both ends of the second housing 21. The bottom cover 22 is arranged outside the air inlet 213 and is arranged around the second housing 21. The bottom cover 22 covers the installation opening 112, and the outer edge of the bottom cover 22 abuts against the side wall of the outer shell 1.

[0079] In this setting method, when the inner shell 2 is disassembled and installed in the installation space 111, the second housing 21 is inserted into the installation space 111 and is arranged at an interval from the inner wall of the outer shell 1; the bottom cover 22 can cover a part of the installation opening 112 area outside the second housing 21 to close the installation space 111, improve the sound insulation performance, and prevent foreign objects from falling into the installation space 111 outside the inner shell 2.

[0080] Please refer to Figure 3 , in an embodiment, the fan 3 is a double-boost fan. The double-boost fan is provided with two impellers arranged in sequence along the air flow direction, and the rotation directions of the two impellers are opposite; the two impellers rotate simultaneously for boosting. Compared with a single-impeller fan of the same volume, it can increase the wind speed and air volume, so that the fan assembly 100 can have a better smoke exhaust effect when applied to a laser processing device.

[0081] Please refer to Figure 2, in one embodiment, the housing 1 is provided with an air outlet grille 13, and the air outlet grille 13 is arranged on one side of the first abutting structure 113 facing the air outlet 122. The setting of the air outlet grille 13 can prevent foreign objects from entering the installation space 111 and affecting the fan 3, and can also prevent users from accidentally inserting their fingers into the installation space 111, improving the use safety. Optionally, the housing 1 includes a first housing 11 and a wind guiding part 12. The air outlet grille 13 can be arranged in the wind guiding part 12, and can be integrally formed with the wind guiding part 12, or can be detachably or non-detachably connected to the wind guiding part 12.

[0082] Please refer to Figure 2 , in one embodiment, at least one outer wall of the housing 1 is set as an installation surface, and the installation surface is provided with buffer feet 15; in this setting method, when the fan assembly 100 is placed on a bearing surface or hung on a wall and contacts other structures, the buffer feet 15 contact the bearing surface or the hanging surface, which can play a role in shock absorption, prevent the vibration energy of the fan assembly 100 from being transmitted to the bearing surface or the hanging surface, and thus prevent the fan assembly 100 from vibrating and generating a large noise during operation.

[0083] Please refer to Figure 2 , in one embodiment, a hanging part 16 is provided on the outer side wall of the housing 1. In this setting method, the fan assembly 100 can be directly placed on a desktop or other bearing surfaces, or can be hung on a wall or other hanging structures through the hanging part 16, improving the use flexibility of the fan assembly 100. Among them, the hanging part 16 can be a hanging ring, or a plate-like structure protruding from the outer wall of the housing 1 can be provided, and dovetail grooves are respectively arranged on both sides of the plate-like structure. Of course, the hanging part 16 can also be set as other hanging structures, which are not limited here.

[0084] Please refer to Figure 1 and Figure 5 , in one embodiment, the fan assembly 100 further includes a wind guiding cover 7. One end of the wind guiding cover 7 is detachably connected to the inner housing 2. The wind guiding cover 7 is provided with an air inlet channel 71 communicating with the air inlet 213, and at least one of an air inlet grille 74 and a filter element 8 is arranged in the wind guiding cover 7.

[0085] In this embodiment, the setting of the wind guiding cover 7 can be used to connect with an air inlet pipe, and the fan assembly 100 is connected to the equipment main body of the laser processing equipment through the air inlet pipe. Among them, one end of the air inlet pipe can be sleeved or inserted into the wind guiding cover 7 to improve the disassembly and assembly convenience of the fan assembly 100 and the air inlet pipe. Among them, the wind guiding cover 7 is detachably connected to the inner housing 2, which is convenient for separately removing the wind guiding cover 7 to clean, maintain or replace structures such as the filter element 8 or the air inlet grille 74 arranged in the wind guiding cover 7; optionally, the wind guiding cover 7 and the inner housing 2 can be connected by snap connection, or can be connected by thread fitting, or can be connected to each other by structures such as bolts.

[0086] Please refer to Figures 5 to 7 , optionally, a filter element 8 is provided in the air inlet passage 71. When the fan assembly 100 is applied to a laser processing device for smoke exhaust, the filter element 8 can filter the smoke extracted from the device main body, which can not only reduce the content of pollutants such as soot in the smoke discharged through the fan assembly 100 and avoid pollution caused by direct discharge of the smoke, but also prevent pollutants such as soot from adhering to components such as the fan 3, ensuring the stable performance of the fan assembly 100.

[0087] Please refer to Figure 1 and Figure 3 , optionally, an air inlet grille 74 is provided in the air inlet passage 71. The setting of the air inlet grille 74 can prevent foreign objects from entering the installation space 111 and affecting the fan 3, and can also prevent users from accidentally inserting their fingers into the installation space 111, improving the use safety. In some embodiments, the air inlet grille 74 and the filter element 8 can be sequentially provided in the air inlet passage 71, which is not limited herein.

[0088] Please refer to Figure 8 , in an embodiment, the air guide cover 7 is provided with a first clamping structure 215, and the inner shell 2 is provided with a second clamping structure 72. The first clamping structure 215 and the second clamping structure 72 are clamped and matched to enable the detachable connection between the air guide cover 7 and the inner shell 2.

[0089] In this embodiment, the air guide cover 7 and the inner shell 2 are clamped and matched through the first clamping structure 215 and the second clamping structure 72. The first clamping structure 215 and the second clamping structure 72 can be set as a matching structure of a hook and a clamping hole, or can be set as a matching structure of a clamping groove 731 and a clamping protrusion 721, which is not limited herein. Such a setting can disassemble and assemble the air guide cover 7 without using tools such as a screwdriver, improving the disassembly and assembly convenience of the air guide cover 7 and the inner shell 2.

[0090] Please refer to Figure 8, in one embodiment, the cross-section of one end of the air guide cover 7 connected to the inner shell 2 is circular. The first clamping structure 215 is arranged as a clamping protrusion 721 protruding from the outer wall of the air guide cover 7. The air inlet 213 is circular. The second clamping structure 72 is arranged as a clamping groove 2151 on the inner side wall of the inner shell 2. The clamping groove 2151 extends along the circumferential direction of the inner shell 2. The air guide cover 7 can rotate relative to the inner shell 2, so that the clamping protrusion 721 slides in the clamping groove 2151. In this setting method, when installing the air guide cover 7, the cylindrical end of the air guide cover 7 is inserted into the air inlet 213. At this time, the clamping protrusion 721 is located at the opening position of the clamping groove 2151. Then, rotate the air guide cover 7 to make the clamping protrusion 721 enter the clamping groove 2151 to limit the clamping protrusion 721 in the clamping groove 2151; when it is necessary to disassemble the air guide cover 7 and the inner shell 2, rotate the air guide cover 7 to make the clamping protrusion 721 withdraw from the clamping groove 2151, and then the air guide cover 7 can be pulled out from the inner shell 2. The disassembly and assembly of the air guide cover 7 and the inner shell 2 are relatively convenient.

[0091] Please refer to Figure 9 , in one embodiment, the filter element 8 is provided with a third clamping structure 81, and the air guide cover 7 is provided with a fourth clamping structure 73. The third clamping structure 81 and the fourth clamping structure 73 are clamped and matched to make the filter element 8 and the air guide cover 7 detachably connected.

[0092] In this embodiment, the filter element 8 and the air guide cover 7 are clamped and matched through the third clamping structure 81 and the fourth clamping structure 73. The third clamping structure 81 and the fourth clamping structure 73 can be arranged as a matching structure of a hook and a clamping hole, or can be arranged as a matching structure of a clamping groove 731 and a clamping protrusion 721, which is not limited herein. With such a setting, it is not necessary to use tools such as a screwdriver to disassemble and assemble the air guide cover 7, improving the disassembly and assembly convenience of the filter element 8 and the air guide cover 7.

[0093] Please refer to Figure 9 , in one embodiment, the cross-section of the end of the filter element 8 is circular. The third clamping structure 81 is arranged as a convex buckle 811 protruding from the outer wall of the filter element 8. The end contour of the air guide cover 7 for connecting with the filter element 8 is circular. The fourth clamping structure 73 is arranged as a clamping groove 731 on the outer side wall of the air guide cover 7. The edge of the air guide cover 7 is provided with a connecting channel communicating with the clamping groove 731. The convex buckle 811 can enter and exit the clamping groove 731 along the connecting channel. The filter element 8 can rotate relative to the air guide cover 7, so that the convex buckle 811 slides in the clamping groove 731 to be opposite or misaligned with the connecting channel. In this setting method, when installing the filter element 8, the convex buckle 811 enters the clamping groove 731 along the connecting channel. Then, rotate the filter element 8 to make the convex buckle 811 misaligned with the connecting channel, so as to limit the convex buckle 811 in the clamping groove 731; when it is necessary to remove the filter element 8, rotate the filter element 8 to make the convex buckle 811 face the connecting channel, and then the filter element 8 can be pulled out from the air inlet channel 71, making the disassembly and assembly of the filter element 8 relatively convenient.

[0094] Optionally, a limiting groove may be provided on the groove side wall of the card slot 731. After rotating the filter element 8 to misalign the convex buckle 811 with the connection channel, the convex buckle 811 can slide along the card slot 731 until it is snapped into the limiting groove, thereby improving the connection strength between the filter element 8 and the air guide cover 7.

[0095] The present utility model further provides a laser processing device, which can be used to perform laser processing operations such as welding, cutting, engraving, and marking. Specifically, the laser processing device includes a laser device main body and the blower assembly 100 in any of the foregoing embodiments. The specific structure of the blower assembly 100 refers to the above embodiments. A processing space is provided inside the device main body, and a smoke exhaust channel communicating with the processing space is provided. The blower assembly 100 is located outside the device main body and is connected to the smoke exhaust channel. An air inlet pipe can be connected to the air inlet 213 of the blower assembly 100, and one end of the air inlet pipe is connected to the smoke exhaust channel. Optionally, an air outlet pipe can also be connected to the air outlet of the blower assembly 100, and the exhaust position can be controlled by adjusting the outlet of the air outlet pipe.

[0096] Among them, the device main body of the laser processing device includes a frame for forming a processing space and a laser head provided in the frame. The laser head is used to emit laser light and can be used to perform laser processing operations such as welding, cutting, engraving, and marking on the processing material. During the laser processing, the blower assembly 100 operates to extract the waste gas and dust generated during the processing through the smoke exhaust channel, preventing the waste gas and dust from depositing in the processing space and affecting the laser processing.

[0097] Since this laser processing device adopts all the technical solutions of the above-mentioned all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated here one by one.

[0098] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A fan assembly, characterized in that: include: A housing, wherein the housing is provided with an installation space, the housing comprises a first abutment structure, and the first abutment structure is provided with an air outlet communicating with the installation space; an inner shell, at least a portion of which is disposed in the installation space, the inner shell being provided with an inner cavity, an end of the inner shell facing the air outlet being provided with a avoidance opening which is arranged opposite to and connected to the air outlet, the inner shell being provided with a second abutment structure which is arranged around the circumference of the inner cavity, and one of the inner shell and the outer shell being provided with an air inlet which is connected to the inner cavity; and A fan is disposed in the inner cavity and sandwiched between the first abutment structure and the second abutment structure, and an airflow outlet of the fan is disposed toward the air outlet.

2. The fan assembly according to claim 1, characterized in that: The fan assembly further includes a sound insulation structure, which is disposed on the outer side wall of the inner shell and is disposed around at least a portion of the circumference of the inner shell.

3. The fan assembly according to claim 2, characterized in that: The outer side wall of the inner shell is provided with a first limiting structure, and the sound insulation structure is provided with a second limiting structure. The first limiting structure cooperates with the second limiting structure to limit the sound insulation structure.

4. The fan assembly according to claim 3, characterized in that: The outer wall of the inner shell is convexly provided with a limiting rib as the first limiting structure, and the sound insulation structure is provided with a limiting groove as the second limiting structure, and the limiting rib is inserted into the limiting groove.

5. The fan assembly according to claim 1, characterized in that: A first sound insulation pad is provided in the housing, and the first sound insulation pad is arranged around the circumference of the air outlet and is sandwiched between the first abutment structure and the fan; And / or, a second sound insulation pad is provided in the inner shell, the second sound insulation pad is arranged around the circumference of the inner cavity, and is sandwiched between the second abutment structure and the fan; And / or, an installation opening connected to the installation space is formed at one end of the outer shell away from the air outlet, and an end of the inner shell away from the air outlet is exposed at the installation opening and is formed with the air inlet.

6. The fan assembly according to claim 5, characterized in that: When a first sound insulation pad is provided in the outer shell, part of the first sound insulation pad is sandwiched between the inner shell and the first abutment structure; And / or, when the outer shell is provided with a mounting opening and the inner shell is provided with the air inlet, the outer shell comprises a first shell and an air guide portion, the first shell has a first end and a second end which are arranged back to back, the first shell is provided with the mounting space, the first end is provided with the mounting opening, the end side wall of the second end forms the first abutment structure, the air guide portion is connected to the second end and is provided with an air outlet passage communicating with the mounting space, and the air outlet is provided at one end of the air guide portion away from the first shell; And / or, the inner shell includes a second shell and a bottom cover, the second shell is inserted in the installation space, the second shell is provided with the inner cavity, the avoidance port and the air inlet are provided at both ends of the second shell, the bottom cover is provided on the outside of the air inlet and is arranged around the second shell, the bottom cover is provided on the installation port, and the outer edge of the bottom cover is abutted against the side wall of the outer shell.

7. The fan assembly according to claim 1, characterized in that: The fan assembly further includes a shock absorbing pad, which is arranged around the circumference of the fan and sandwiched between the side wall of the fan and the inner side wall of the inner shell; And / or, the fan assembly further comprises a control module and a third sound insulation pad, the control module is arranged on the outer side wall of the inner shell and is electrically connected to the fan, and the third sound insulation pad is arranged between the outer shell and at least part of the control module; And / or, the outer shell is provided with a connecting hole, the inner shell is provided with a fixing hole, and the fan assembly further comprises a locking member, and the locking member is passed through the connecting hole and the fixing hole to connect the outer shell and the inner shell.

8. The fan assembly according to claim 1, characterized in that: The fan assembly also includes an air guide cover, one end of which is detachably connected to the inner shell, the air guide cover is provided with an air inlet channel connected to the air inlet, and at least one of an air inlet grille and a filter element is provided in the air guide cover.

9. The fan assembly according to claim 8, characterized in that: The air guide cover is provided with a first clamping structure, and the inner shell is provided with a second clamping structure, and the first clamping structure and the second clamping structure are clamped and matched to make the air guide cover and the inner shell detachably connected; And / or, when the air guide cover is provided with the filter element, the filter element is provided with a third clamping structure, and the air guide cover is provided with a fourth clamping structure, and the third clamping structure is clamped and matched with the fourth clamping structure to make the filter element and the air guide cover detachably connected.

10. The fan assembly according to any one of claims 1 to 9, characterized in that: The fan is a double-boost fan; And / or, the housing is provided with an air outlet grille, and the air outlet grille is provided on a side of the first abutting structure facing the air outlet; And / or, at least one side outer wall of the housing is configured as a mounting surface, and the mounting surface is provided with a buffer foot pad; And / or, the outer side wall of the shell is provided with a hanging portion.

11. A laser processing device, characterized in that: It comprises an equipment body and a fan assembly as described in any one of claims 1 to 10, wherein a processing space is provided in the equipment body and a smoke exhaust passage connected to the processing space is provided, and the fan assembly is located outside the equipment body and connected to the smoke exhaust passage.

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