Cooling fan and switch

Abstract

The utility model discloses a cooling fan and a switch, which can realize fault reminding. The cooling fan comprises a fan body, a circuit board, a net rack and a light guide column, the fan body is provided with a front side and a rear side which are opposite, the net rack is installed on the fan body and arranged on the front side of the fan body, the circuit board is arranged on the rear side of the fan body, and the circuit board is provided with a state display lamp used for representing whether the fan body operates normally or not. The light guide column is installed on the fan body, the first end of the light guide column extends to the state display lamp, the second end of the light guide column penetrates out of the net frame, and light emitted by the state display lamp is led out to the second end of the light guide column through the first end of the light guide column.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switch, especially relates to heat dissipation fan and switch. BACKGROUND

[0002] Switch as data conversion transmission machine, have a large amount of data need transmission, so switch will produce high heat when running, if not in time heat dissipation will influence the normal work of switch, therefore prior art generally installs heat dissipation fan in switch, carries out heat dissipation through internal and external air exchange, visible need let heat dissipation fan keep in normal operating state, if fault needs timely maintenance and replacement, but current heat dissipation fan does not have fault prompt function, people are difficult to find fault in time. Therefore, an urgent need for a heat dissipation fan and switch that can remind of failure to overcome the above defects. SUMMARY

[0003] The utility model discloses a heat dissipation fan that can remind of failure.

[0004] Another purpose of the utility model is to provide a switch that can remind of failure.

[0005] To achieve the above object, the heat dissipation fan provided by the utility model is suitable for switch, comprising a fan main body, a circuit board, a net rack and a light guide column, the fan main body has opposite front side and back side, the net rack is installed on the fan main body and arranged on the front side of the fan main body, the circuit board is arranged on the back side of the fan main body, the circuit board is provided with a state display lamp for indicating whether the fan main body is in normal operation, the light guide column is installed on the fan main body, the first end of the light guide column extends to the state display lamp, the second end of the light guide column penetrates the net rack, and the light emitted by the state display lamp is introduced to the second end of the light guide column through the first end of the light guide column.

[0006] Preferably, the light guide column penetrates the fan main body.

[0007] Preferably, the light guide column comprises a first structural segment arranged horizontally and a second structural segment arranged vertically, the first structural segment penetrates the fan main body and the net rack, and the second structural segment is located on the back side of the fan main body.

[0008] Preferably, one mounting through hole is arranged at each corner of the periphery of the fan main body, the mounting through holes are screwed with fixing screws, the fan main body and the net rack are fixed by the fixing screws, and the first structural segment penetrates one of the mounting through holes and penetrates the net rack.

[0009] Preferably, a lead-out through hole is arranged on the front side of the net rack and opposite to the mounting through hole, and the second end of the light guide column penetrates the lead-out through hole.

[0010] Preferably, the heat dissipation fan further comprises a docking seat, the docking seat is installed on the circuit board, the docking seat has a light guide hole penetrating in the up-down direction, the docking seat covers the state display lamp and makes the state display lamp be placed in the light guide hole, and the first end of the light guide column is inserted into the light guide hole.

[0011] Preferably, the docking seat comprises a sleeving part and a positioning part connected to the sleeving part, the bottom of the positioning part protrudes a plug-in body downward, the lower end of the plug-in body forms an elastic plug structure, the circuit board is provided with a plug-in hole, and the elastic plug structure passes through the plug-in hole and makes the plug-in body be clamped in the plug-in hole.

[0012] Preferably, the front side of the net rack is provided with a plurality of air-permeable holes, the front side of the net rack is further provided with a handle, and the four peripheral sides of the net rack are further provided with EMI elastic sheets.

[0013] Preferably, the net rack comprises a bottom side support plate arranged at the bottom of the fan main body, the bottom side support plate is provided with a positioning pin, the circuit board is provided with a positioning hole, the positioning pin is inserted into the positioning hole, and the circuit board is further fixed to the bottom side support plate through a locking screw.

[0014] To achieve the second purpose, the utility model also provides a switch which comprises the heat dissipation fan.

[0015] Compared with the prior art, the heat dissipation fan comprises a circuit board, a state display lamp for indicating whether the fan main body is normally running is arranged on the circuit board, light emitted by the state display lamp is guided out through a light guide column, and the prompt emitted by the state display lamp can be observed externally, so that whether the fan main body is normally running can be known conveniently, faults can be found in time, the switch cannot work normally due to long-time lack of maintenance and replacement is avoided, and fault reminding is realized. It can be understood that, since the switch of the utility model comprises the heat dissipation fan, the switch also has the fault reminding function. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a perspective view of the switch of the utility model.

[0017] Figure 2 Fig. 2 is a perspective view of the heat dissipation fan of the utility model.

[0018] Figure 3 Fig. 3 is a perspective view of the heat dissipation fan of the utility model in another angle.

[0019] Figure 4 Fig. 4 is an exploded view of the heat dissipation fan of the utility model.

[0020] Figure 5 Fig. 5 is a partial sectional view of the light guide column of the utility model inserted into the light guide hole of the docking seat and extending to the state display lamp. DETAILED DESCRIPTION

[0021] In order to explain the technical content and structural features of the present application, the following further description is made in combination with the embodiments and the accompanying drawings.

[0022] As shown in Figure 1 The present application provides a heat dissipation fan 100, which is suitable for a switch 1000 and realizes the heat dissipation by using the heat dissipation fan 100 to exchange the internal and external air flow of the switch 1000.

[0023] As shown in Figures 2 to 5 The heat dissipation fan 100 of the present application comprises a fan main body 10, a circuit board 20, a net rack 30 and a light guide column 40. The fan main body 10 has opposite front and back sides. In the embodiment provided by the present application, Figure 2 The direction indicated by the arrow Y is the direction from the front to the back. The net rack 30 is installed on the fan main body 10 and arranged on the front side of the fan main body 10, and the circuit board 20 is arranged on the back side of the fan main body 10. The circuit board 20 is provided with a state display lamp 21 for indicating whether the fan main body 10 is normally running. The light guide column 40 is installed on the fan main body 10, the first end 41 of the light guide column 40 extends to the state display lamp 21, and the second end 42 of the light guide column 40 penetrates out of the net rack 30. The light emitted by the state display lamp 21 is introduced to the second end 42 of the light guide column 40 through the first end 41 of the light guide column 40.

[0024] The heat dissipation fan 100 provided by the present application comprises the circuit board 20, which is provided with the state display lamp 21 for indicating whether the fan main body 10 is normally running, and the light emitted by the state display lamp 21 is introduced through the light guide column 40, so that the prompt emitted by the state display lamp 21 can be observed outside (the net rack 30), thereby conveniently knowing whether the fan main body 10 is normally running, discovering the fault in time, avoiding the long-term lack of maintenance and replacement to cause the switch 1000 to be unable to normally work, and realizing the fault reminding.

[0025] The fan main body 10 adopts the existing structure, which is well known to those skilled in the art, and thus will not be described here. Preferably, the state display lamp 21 adopts an LED lamp, but according to the actual needs, a traditional lamp bead can also be adopted. Preferably, the state display lamp 21 flashes green light when the fan main body 10 is normally running, and flashes orange light when the fan main body 10 cannot normally run, but is not limited thereto, for example, can be set to a stroboscopic prompt mode when the fan main body 10 cannot normally run. The light guide column 40 is made of a composite material and has excellent light guiding performance, and the whole body is transparent, which can be made of a plastic with high light transmittance, such as polycarbonate.

[0026] As shown in Figures 2 to 5As shown, the light guide column 40 passes through the fan body 10 to enhance the installation stability of the light guide column 40. Specifically, the light guide column 40 comprises a first structural section 43 arranged horizontally and a second structural section 44 arranged vertically. The first structural section 43 passes through the fan body 10 and the net rack 30, and the second structural section 44 is arranged at the rear side of the fan body 10. Further, a mounting through hole 11 is formed at each of the four corner edges of the fan body 10, and the mounting through holes 11 are fitted with fixing screws 50 to fix the fan body 10 and the net rack 30. The first structural section 43 passes through one of the mounting through holes 11 and protrudes out of the net rack 30. The fan body 10 and the net rack 30 are fixed by the fixing screws 50 to enhance the installation stability therebetween. The first structural section 43 of the light guide column 40 passes through one of the mounting through holes 11, which is used to position the first structural section 43, and only the four corner edges of the fan body 10 are formed with the mounting through holes 11, so that the structural integrity and coordination are better.

[0027] Preferably, the first structural section 43 passes through the mounting through hole 11 formed at the upper right corner edge of the fan body 10, and the other three mounting through holes 11 are fitted with the fixing screws 50. Further, to facilitate the second end 42 of the light guide column 40 to protrude out of the net rack 30, an exit through hole 31 opposite to the mounting through hole 11 is formed on the front side of the net rack 30, and the second end 42 of the light guide column 40 passes through the exit through hole 31. The exit through hole 31 is arranged to enable the light guide column 40 to protrude out of the net rack 30 and to position the second end 42 of the light guide column 40, thereby enhancing the structural stability.

[0028] As shown in the drawings, Figures 2 to 5 The cooling fan 100 further comprises a docking seat 60. The docking seat 60 is mounted on the circuit board 20, and the docking seat 60 has a light guide hole 61 penetrating in the up-down direction. The docking seat 60 covers the status display lamp 21 and places the status display lamp 21 in the light guide hole 61, and the first end 41 of the light guide column 40 is inserted into the light guide hole 61. The docking seat 60 is arranged to facilitate the first end 41 of the light guide column 40 to dock with the status display lamp 21, and more stably and reliably guide the light emitted by the status display lamp 21 out. Moreover, the docking seat 60 also facilitates the installation of the first end 41 of the light guide column 40. Preferably, the docking seat 60 is made of plastic, rubber or the like, but is not limited thereto.

[0029] Specifically, the docking seat 60 comprises a sleeve part 62 and a locating part 63 connected to the sleeve part 62, and the bottom of the locating part 63 protrudes downwardly a plug-in body 631, the lower end of the plug-in body 631 forms an elastic plug structure 632, the circuit board 20 is provided with a plug-in hole 22, the elastic plug structure 632 passes through the plug-in hole 22 and makes the plug-in body 631 clamped in the plug-in hole 22. The elastic plug structure 632 is arranged to be inserted into the plug-in hole 22, so that the plug-in body 631 is clamped in the plug-in hole 22, thereby achieving the purpose of fixing the docking seat 60 to the circuit board 20, and the elastic plug structure 632 and the plug-in body 631 facilitate the installation of the docking seat 60. The elastic plug structure 632 is generally conical to facilitate insertion into the plug-in hole 22.

[0030] As shown in Figures 2 to 5 , the front side of the net rack 30 is provided with a plurality of air holes 32, and the front side of the net rack 30 is also provided with a handle 33, and the four sides of the net rack 30 are also provided with EMI elastic sheets 34. The handle 33 is arranged to facilitate the installation and removal of the cooling fan 100 in and out of the switch 1000. The plurality of air holes 32 are arranged in a honeycomb shape, but are not limited thereto. The EMI elastic sheets 34 installed on the four sides of the net rack 30 reduce electromagnetic interference and reduce interference and shielding of network input and output signals.

[0031] As shown in Figures 2 to 5 , the net rack 30 comprises a bottom side support plate 35 arranged at the bottom of the fan body 10, the bottom side support plate 35 is provided with a positioning pin 36, the circuit board 20 is provided with a positioning hole 23, the positioning pin 36 is inserted into the positioning hole 23, and the circuit board 20 is further fixed to the bottom side support plate 35 by a locking screw 70. The positioning pin 36 is arranged to provide positioning for the circuit board 20, to ensure accurate installation. After the positioning pin 36 is arranged, only one locking screw 70 is needed to fix the circuit board 20 to the bottom side support plate 35. The circuit board 20 is provided with a gold finger 24, which is used for input and output of the circuit board 20.

[0032] As shown in Figure 1 , the cooling fan 100 of the utility model is applied to the switch 1000, and the switch 1000 further comprises a case 200, a power supply 300, a CPU 400, a mainboard 500 and the like arranged in the case 200, and the remaining structures are not listed one by one. The cooling fan 100 is also arranged in the case 200, Figure 1 , a perspective view of the switch after the cover plate of the case 200 is separated is shown.

[0033] Figure 2 In the figure, the direction indicated by the arrow Z is from top to bottom.

[0034] The above disclosed is only a preferred embodiment of the present application, and cannot be used to limit the scope of the present application, therefore equivalent changes made according to the present application claims are all within the scope of the present application.

Claims

1. A heat dissipating fan suitable for use in a switch, characterized in that, The fan body has opposite front and back sides, the net frame is installed on the fan body and arranged on the front side of the fan body, the circuit board is arranged on the back side of the fan body, the circuit board is provided with a state display lamp for indicating whether the fan body is in normal operation, the light guide column is installed on the fan body, the first end of the light guide column extends to the state display lamp, and the second end of the light guide column penetrates out of the net frame.

2. The heat dissipating fan according to claim 1, wherein, The light guide column penetrates through the fan body.

3. The heat dissipating fan according to claim 1, wherein, The light guide column comprises a first structure segment arranged horizontally and a second structure segment arranged vertically, the first structure segment penetrates through the fan body and the net frame, and the second structure segment is located on the back side of the fan body.

4. The heat dissipating fan according to claim 3, wherein, An installation through hole is arranged at each corner of the fan body, a plurality of the installation through holes are screwed with fixing screws, the fan body and the net frame are fixed by the fixing screws, the first structure segment penetrates through one of the installation through holes and penetrates out of the net frame.

5. The heat dissipating fan according to claim 4, wherein, An exit through hole is arranged on the front side of the net frame and opposite to the installation through hole, and the second end of the light guide column penetrates through the exit through hole.

6. The heat dissipating fan of claim 1, wherein, A docking seat is further arranged, the docking seat is installed on the circuit board, the docking seat has a light guide hole penetrating in the up-down direction, the docking seat covers the state display lamp and places the state display lamp in the light guide hole, and the first end of the light guide column is inserted into the light guide hole.

7. The heat dissipating fan according to claim 6, wherein The docking seat comprises a sleeving part and a positioning part connected to the sleeving part, the bottom of the positioning part protrudes downwardly to form an insertion body, the lower end of the insertion body forms an elastic plug structure, the circuit board is provided with an insertion hole, the elastic plug structure penetrates through the insertion hole and makes the insertion body clamped in the insertion hole.

8. The heat dissipating fan of claim 1, wherein, A plurality of air permeable holes are arranged on the front side of the net frame, a handle is further arranged on the front side of the net frame, and EMI elastic sheets are further arranged on the four side surfaces of the net frame.

9. The heat dissipating fan of claim 1, wherein, The net frame comprises a bottom side support plate arranged on the bottom of the fan body, the bottom side support plate is provided with a positioning pin, the circuit board is provided with a positioning hole, the positioning pin is inserted into the positioning hole, and the circuit board is further fixed to the bottom side support plate by a locking screw.

10. A switch, characterized by The heat dissipation fan comprises the heat dissipation fan according to any one of claims 1-9.

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