CN217381015U - Fan base and cooling fan - Google Patents
Fan base and cooling fan Download PDFInfo
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- CN217381015U CN217381015U CN202220747232.3U CN202220747232U CN217381015U CN 217381015 U CN217381015 U CN 217381015U CN 202220747232 U CN202220747232 U CN 202220747232U CN 217381015 U CN217381015 U CN 217381015U
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- fan
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- fan base
- bottom plate
- circuit board
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model discloses a fan base and radiator fan, this radiator fan include fan base, circuit board, stator coil group and impeller: the fan base is combined with a circuit board, the circuit board is externally connected with a power supply or a driving circuit, the stator coil group is combined inside the fan base and used for being electrically connected with the circuit board, and the fan wheel is rotationally combined with the stator coil group; the fan base comprises a bottom plate and a side wall; the bottom plate is provided with an upper surface, a joint part is arranged on the upper surface, a wire hole is further arranged on the upper surface, a convex part is arranged at one end, away from the joint part, of the wire hole, the convex part is provided with a hollow area, the wire hole penetrates through the base and is communicated with the hollow area to form a lead through groove, and the side wall is arranged on the periphery of the base and is provided with an air inlet and an air outlet. The wire through groove is provided with a guide surface, the guide surface is provided with a starting end and a tail end, the starting end is positioned above the upper surface, and the tail end is positioned below the starting end.
Description
Technical Field
The utility model belongs to the technical field of the heat dissipation, concretely relates to fan base and radiator fan.
Background
Along with the development of the electronic industry, the performance of electronic elements is continuously improved, the operation speed is faster and faster, the number of internal chips is continuously increased, the heat generated by the chips during working is correspondingly increased, if the heat is not dissipated in time, the electronic elements are damaged, the performance and the service life are influenced, and therefore the heat dissipation of the electronic elements is required.
The most commonly used method for increasing the heat dissipation efficiency is to install a heat dissipation fan in the electronic product, and force the airflow to flow by the aid of the wind-dispelling effect of the heat dissipation fan, so as to exhaust the high-temperature gas inside the electronic product.
The conventional heat dissipation fan usually adopts soldering tin to fix the lead and the circuit board, so that the lead is electrically connected with the circuit board, but the fixing mode easily causes common problems of lead loosening and the like.
Therefore, in order to solve the above technical problems, it is necessary to provide a new fan base and a heat dissipation fan.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fan base and radiator fan that can effectively solve above-mentioned technical problem.
The utility model provides a fan base's that its technical problem provided technical scheme as follows:
a fan base, comprising:
a base plate defining opposing upper and lower surfaces;
the joint part is formed by upward protruding of the upper surface of the bottom plate;
the bottom plate is provided with a wire outlet hole in a penetrating manner, a convex part is formed by upward protruding at the position of one side of the wire outlet hole, which is far away from the joint part, a hollow area is formed right below the convex part, and a guide surface is defined and formed on the surface of the convex part, which is positioned in the hollow area;
the guide surface defines a starting end and a tail end along a radial direction with the axis of the joint part as a center, the starting end is close to the wire outlet hole, and the tail end is far away from the wire outlet hole, wherein along the axial direction of the joint part, the starting end is positioned above the upper surface, and the tail end is positioned below the starting end;
the wire outlet hole is used for leading out the wiring downwards from the upper part of the bottom plate and leading out the wiring through the guide surface.
Preferably, the fan base defines a reference plane, the reference plane is perpendicular to the axis of the joint portion and located above the joint portion, along a radial direction with the axis of the joint portion as a center, at least one section of a distance between the guide surface and the reference plane from a start end to a tail end is in a gradually expanding trend, and a distance value between the tail end of the guide surface and the reference plane is the largest.
Preferably, the distance between the guide surface and the reference plane is gradually increased from the starting end to the ending end along the radial direction taking the axis of the joint part as the center.
Preferably, the trailing end is located below the upper surface in the axial direction of the engagement portion.
Preferably, the terminal end is located on a lower surface of the base plate.
The utility model provides a radiator fan's that its technical problem provided technical scheme as follows:
a heat dissipation fan, comprising:
a fan base as described above;
a circuit board with a positioning hole, wherein the circuit board is fixed on the joint part by the positioning hole in a sleeved mode, the circuit board is provided with at least one wiring, one end of the wiring is electrically connected with the circuit board, and the other end of the wiring penetrates out of the upper portion of the wire outlet hole downwards and is led out through the guide surface;
a stator coil group which is combined with the bottom plate or the joint part of the fan base and is electrically connected with the circuit board;
a fan rotor rotatably coupled to the joint.
Preferably, the impeller rotor includes an impeller base and a plurality of blades formed by extending the periphery of the impeller base outward, and the protrusion is located right below the blade area and near the impeller base.
Preferably, the impeller rotor includes an impeller base and a plurality of blades formed by extending the periphery of the impeller base outward, and the wire outlet hole is located right below a combining area of the impeller base and the blades.
Preferably, radiator fan is still including side wall and several rib, the several the rib sets up along the edge circumference of bottom plate, side wall and fan base pass through several rib fixed connection and are formed with into wind gap and air outlet, the convex part sets up on the rib.
Preferably, the heat dissipation fan further includes a side wall and an upper cover, the side wall is formed by protruding upwards from the edge of the upper surface of the bottom plate, and is formed with an air inlet and an air outlet, the upper cover is combined with the side wall, and the upper cover is provided with a through hole corresponding to the air inlet.
Preferably, a plurality of air guide holes are formed in the bottom plate in a penetrating manner, a rib portion is formed between every two adjacent air guide holes, and the outlet holes and the convex portions are arranged on the rib portion.
The beneficial effects of the utility model reside in that:
compared with the prior art, the utility model discloses a fan base and radiator fan sets up the convex part in order to form the guide surface through the position department of being qualified for the next round of competitions at fan base, makes the wiring wear out downwards and derive through the guide surface in the top of the position department of being qualified for the next round of competitions from the bottom plate, can prevent that the wiring from making solder joint position atress rupture or coming off because of external factor.
Drawings
The invention will be further described with reference to the drawings and examples, in which:
fig. 1 is a sectional view of a heat dissipation fan according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a fan base in a heat dissipation fan according to a first embodiment of the present invention;
FIG. 3 is a bottom view of the fan base of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is an enlarged schematic view of the structure within dashed circle B shown in FIG. 4;
fig. 6 is a sectional view of a fan base in a heat dissipation fan according to a second embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the structure within dashed circle C shown in FIG. 6;
fig. 8 is a sectional view of a heat dissipating fan according to a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of a fan base in a cooling fan according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
In the embodiment of the present invention, a direction perpendicular to the bottom plate 11 is referred to as an "up-down" direction, a direction from the upper surface 111 to the engaging portion 113 is an "up" direction, and a direction opposite to the "up" direction is a "down" direction. It should be noted that the definitions of the directions in the present specification are only for convenience of describing the embodiments of the present invention, and do not limit the directions of the heat fan or the like in use.
Referring to fig. 1 to 5, in a first embodiment, the heat dissipation fan 100 is a centrifugal fan, and the centrifugal fan includes a fan base 1, a circuit board 2, a stator coil set 3 and a fan wheel rotor 4. The fan base 1 can be combined with the circuit board 2, the circuit board 2 is used for connecting an external power supply or a driving circuit, the stator coil group 3 is combined on the fan base 1 and is used for electrically connecting the circuit board 2, and the fan wheel rotor 4 can be rotatably combined with the stator coil group 3 so as to drive the fan wheel rotor 4 to rotate by utilizing the stator coil group 3.
The fan base 1 has a bottom plate 11, and the bottom plate 11 of the fan base 1 may also be provided with a plurality of air holes 119 penetrating through the bottom plate 11 for increasing the air inlet amount of the fan base 1; the bottom plate 11 has an upper surface 111 and a lower surface 112 corresponding to the upper surface 111, the upper surface 111 is provided with a joint portion 113 and an outlet hole 114, and the joint portion 113 has an end portion 1131 protruding from the upper surface 111, that is, the joint portion 113 is formed by the upper surface 111 of the bottom plate 11 protruding upward, wherein the joint portion 113 may also be a sleeve for combining the stator coil set 3; a convex portion 115 is further formed on the upper surface 111 of the bottom plate 11 in an upward protruding manner, the convex portion 115 is located at an end edge of the wire outlet 114 away from the joint portion 113, a hollow area 116 is disposed at a position of the convex portion 115 corresponding to the lower surface 112, the wire outlet 114 passes through the bottom plate 11 and is communicated with the lower surface 112, and a wire through groove 117 is formed in communication with the hollow area 116, so as to be used for wire arrangement, positioning and assembling of the circuit board 2, and the like.
In the first embodiment, a rib portion is formed between two adjacent air guiding holes 119, and the outlet hole 114 and the protruding portion 115 are disposed on the rib portion.
The fan base 1 further includes a sidewall 12 and an upper cover 13, the sidewall 12 is formed by extending upward along the edge of the upper surface 111 of the bottom plate 11, and is formed with an air inlet 121 and an air outlet 122 in a lateral direction, the upper cover 13 is combined with the sidewall 12, and the upper cover 13 is provided with a through hole 131 corresponding to the air inlet 121. In the present application, the side wall 12 is further provided with a fixing portion 123, the fixing portion 123 is provided with an opening 1231 capable of accommodating the wiring 22, and the opening 1231 gives a release space for the wiring 22, so that the wiring 22 can be prevented from tilting from the lower surface 112 of the bottom plate 11, and the wiring 22 can be prevented from falling off from the regulation position.
Specifically, the circuit board 2 has a positioning hole 21, the circuit board 2 is fixed on the end 1131 of the joint portion 113 by the positioning hole 21, the circuit board 2 is provided with at least one connection wire 22 for connecting an external power supply or a driving circuit, one end of the connection wire 22 is electrically connected to the circuit board 2, and the other end of the connection wire 22 is led into the wire through groove 117 from the wire outlet 114 and then is extended out through the wire through groove 117 so as to connect the external power supply or the driving circuit; therefore, the wire groove 117 can provide the functions of wire arrangement and positioning of the connection wire 22, and the assembly convenience when the circuit board 2 is externally connected with a power supply or a driving circuit is improved. The circuit board 2 also has an insulating layer which faces the base plate 11.
Specifically, the stator coil assembly 3 includes a connecting member 31, a silicon steel sheet assembly 32 and a coil. The shaft connector 31 is various members capable of pivotally connecting the impeller rotor 4, and the silicon steel sheet set 32 is sleeved and combined on the outer peripheral wall of the shaft connector 31; the coil is wound on a predetermined position of the silicon steel sheet set 32, and the coil is provided with at least one electrical connection end which is electrically connected to the circuit board 2.
Specifically, the impeller rotor 4 is rotatably coupled to the shaft coupling member 31 of the stator coil assembly 3; in this embodiment, the impeller rotor 4 is pivotally connected to the shaft connecting member 31 by a central shaft, and the impeller rotor 4 is provided with a permanent magnet, and an air gap is formed between the permanent magnet and the stator coil set 3; therefore, when the stator coil group 3 is externally connected with a power supply or a driving circuit and is electrified to generate a magnetic field, the magnetic field can act with the permanent magnet through the air gap to drive the fan wheel rotor 4 to rotate, and further provide a preset heat dissipation effect.
Specifically, the impeller rotor 4 includes an impeller base and a plurality of blades extending outward from the periphery of the impeller base, and the protrusion 115 is located right below the blade area and near the impeller base. In the present application, the wire outlet 114 is located right below the combination area of the fan wheel base and the fan blade.
As shown in fig. 5, the conductive wire through slot 117 has a guiding surface 118 (i.e., the protrusion 115 is located on the surface of the hollow area 116 to define the guiding surface 118), and the guiding surface 118 has a starting end 1181 and a ending end 1182, the starting end 1181 is adjacent to the wire hole 114, and the ending end 1182 is away from the wire hole 114. The starting end 1181 is located above the upper surface 111, and the ending end 1182 is located below the upper surface 111. In the present application, the end 1182 of the guide surface 118 is located on the lower surface 112 of the base plate 11.
In one embodiment, the fan base 1 defines a reference plane Q, which is located above the joint portion 113 and flush with the upper surface 111 (i.e. perpendicular to the axis of the joint portion 113), and the reference plane Q is located above the starting end 1181 of the guide surface 118. A distance T exists between the guide surface 118 and the reference plane Q, and the distance T gradually changes from the start end 1181 of the guide surface 118 to the end 1182 of the guide surface 118 (i.e., the distance T1 between the start end 1181 of the guide surface 118 and the reference plane Q is smaller than the distance T2 between the end 1182 of the guide surface 118 and the reference plane Q), so that the guide surface 118 forms a plane, a relatively flat curved surface, or a combination of the plane and the curved surface, and the wire 22 can be smoothly disposed in the wire through groove 117, and the wire 22 can be prevented from being broken or falling off due to external factors causing the position of the welding point.
In a second embodiment of the present invention, please refer to fig. 6 and fig. 7, compared to the first embodiment, the distance T between the guiding surface 118 and the reference plane Q of the heat dissipation fan 100' of the second embodiment may also be set as:
there is at least a gradual change in the distance T from the beginning 1181 of the guide surface 118 to the end 1182 of the guide surface 118 to the reference plane Q, and the distance T2 between the end 1182 of the guide surface 118 and the reference plane Q is the largest in all the distances T from the guide surface 118 to the reference plane Q. That is, in this guide surface 118, the tail end 1182 'of at least one section of guide surface 118' that has a tendency to change in a gradual manner is close to or located at this tail end 1182 (i.e., the shortest distance between this section of guide surface 118 'and the reference plane Q is T'). The connection wire 22 can be smoothly arranged in the lead wire through groove 117, and the excessive part of the connection wire 22 can be arranged in the lead wire through groove 117, so that the connection wire 22 occupies less other use space of the centrifugal fan, the interference of the connection wire 22 to the centrifugal fan during working is reduced, and the working efficiency of the centrifugal fan is improved. In the present application, the tendency of variation of the spacing T between the trailing end 1182' of the guide surface 118 and the reference plane Q is not limited by the present embodiment.
In the second embodiment, a plurality of smaller fixing portions (not shown in the drawings) having the same or similar structure as the fixing portions 123 may be disposed in the wire through-hole 117 for fixing or supporting the wire 22, so that the wire 22 is not easily detached from the wire through-hole 117.
In a third embodiment of the present invention, please refer to fig. 8 and 9, compared to the first embodiment, the cooling fan 100' of the third embodiment is an axial fan having a fan base 1, a circuit board 2, a stator coil set 3 and a fan wheel rotor 4, and the assembling and fitting manner is the same as that of the first embodiment, so that the description is omitted here. The difference is that a plurality of ribs 110 are circumferentially disposed on the edge of the bottom plate 11, the side wall 12 is disposed on the periphery of the bottom plate 11, and the side wall 12 is fixedly connected to the bottom plate 11 through the plurality of ribs 110. The side wall 12 is disposed around the periphery of the bottom plate 11 to form an air inlet 121 and an air outlet 122 disposed opposite to each other. In the present application, the axial flow fan is not provided with the upper cover 13, and the convex portion 115 is provided on the rib 110. The axial flow fan has simple structure and simple and convenient manufacturing process.
In the fourth embodiment of the present invention, compared with the second embodiment, the heat dissipation fan of the fourth embodiment is an axial flow fan, which has a fan base 1, a circuit board 2, a stator coil set 3 and a fan wheel rotor 4, and the assembling and fitting manner is the same as that of the second embodiment, so that the description thereof is omitted. The difference is that a plurality of ribs 110 are circumferentially disposed on the edge of the bottom plate 11, the sidewall 12 is disposed on the periphery of the bottom plate 11, and the sidewall 12 is fixedly connected to the bottom plate 11 through the plurality of ribs 110. The side wall 12 is disposed around the periphery of the bottom plate 11 to form an air inlet 121 and an air outlet 122 disposed opposite to each other. In the present application, the axial flow fan is not provided with the upper cover 13, and the convex portion 115 is provided on the rib 110.
To sum up, the utility model discloses a fan base and a radiator fan, a convex part is arranged at the wire outlet position of the base to form a wire through groove, so that the wiring penetrates out from the upper part to the lower part of the bottom plate at the wire outlet position and is smoothly led out through a guide surface, the wiring can be prevented from breaking or falling off due to the stress of the welding point position caused by external factors, and the service life of the radiator fan is influenced; the quality of the cooling fan is improved, and the cooling fan is more durable.
Claims (11)
1. A fan base, comprising:
a base plate defining opposing upper and lower surfaces;
the joint part is formed by upward protruding of the upper surface of the bottom plate;
the bottom plate is provided with a wire outlet hole in a penetrating manner, a convex part is formed by upward protruding at the position of one side of the wire outlet hole, which is far away from the joint part, a hollow area is formed right below the convex part, and a guide surface is defined and formed on the surface of the convex part, which is positioned in the hollow area;
the guide surface defines a start end and a tail end along a radial direction taking the axis of the joint part as a circle center, the start end is close to the wire outlet hole, the tail end is far away from the wire outlet hole, wherein along the axial direction of the joint part, the start end is positioned above the upper surface, and the tail end is positioned below the start end;
the wire outlet hole is used for leading out the wiring downwards from the upper part of the bottom plate and leading out the wiring through the guide surface.
2. The fan base as claimed in claim 1, wherein the fan base defines a reference plane, the reference plane is perpendicular to the axis of the joint portion and located above the joint portion, a distance between the guide surface and the reference plane is gradually increased from a beginning end to a tail end along a radial direction with the axis of the joint portion as a center, and a distance between the tail end of the guide surface and the reference plane is the largest.
3. The fan base as claimed in claim 2, wherein the distance between the guide surface and the reference plane is gradually increased from the beginning to the end along a radial direction with the axial center of the joint portion as a center.
4. The fan base as claimed in claim 1, wherein said trailing end is located below said upper surface in an axial direction of the engaging portion.
5. The fan base of claim 1, wherein said tail end is located on a lower surface of the base plate.
6. A heat dissipating fan, comprising:
a fan base according to any one of claims 1 to 5;
a circuit board with a positioning hole, wherein the circuit board is fixed on the joint part by the positioning hole in a sleeved mode, the circuit board is provided with at least one wiring, one end of the wiring is electrically connected with the circuit board, and the other end of the wiring penetrates out of the upper portion of the wire outlet hole downwards and is led out through the guide surface;
a stator coil group which is combined with the bottom plate or the joint part of the fan base and is electrically connected with the circuit board;
a fan rotor rotatably coupled to the joint.
7. The heat dissipating fan of claim 6, wherein the fan rotor comprises a fan base and a plurality of fan blades extending outward from the periphery of the fan base, and the protrusion is located directly below the fan blade area and adjacent to the fan base.
8. The heat dissipating fan of claim 6, wherein the fan rotor comprises a fan base and a plurality of fan blades extending outward from the periphery of the fan base, and the outlet is located right below the area where the fan base and the fan blades are combined.
9. The heat dissipating fan as claimed in claim 6, further comprising a side wall and a plurality of ribs, wherein the plurality of ribs are disposed circumferentially along the edge of the bottom plate, the side wall and the fan base are fixedly connected by the plurality of ribs and form an air inlet and an air outlet, and the protrusion is disposed on the ribs.
10. The heat dissipating fan as claimed in claim 6, further comprising a side wall and an upper cover, wherein the side wall is formed by protruding the edge of the upper surface of the bottom plate and has an air inlet and an air outlet, the upper cover is combined with the side wall, and the upper cover has a through hole corresponding to the air inlet.
11. The heat dissipating fan according to claim 10, wherein a plurality of air guiding holes are formed through the base plate, a rib portion is formed between two adjacent air guiding holes, and the outlet hole and the protruding portion are provided on the rib portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220747232.3U CN217381015U (en) | 2022-03-31 | 2022-03-31 | Fan base and cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220747232.3U CN217381015U (en) | 2022-03-31 | 2022-03-31 | Fan base and cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217381015U true CN217381015U (en) | 2022-09-06 |
Family
ID=83105433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220747232.3U Active CN217381015U (en) | 2022-03-31 | 2022-03-31 | Fan base and cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217381015U (en) |
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2022
- 2022-03-31 CN CN202220747232.3U patent/CN217381015U/en active Active
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