TW201712231A - Radiator fan reaches and helps formula power supply fully - Google Patents

Abstract

Radiator fan reaches and helps formula power supply fully relates to radiator fan and helps formula power supply technical field fully, radiator fan has the setting element, setting element one end with radiator fan's base is fixed, and the other end is equipped with the fixation clamp, the fixation clamp be used for pressing from both sides establish the plate object so that radiator fan is fixed in the plate object, it has to help formula power supply fully radiator fan, radiator fan's setting element with the base is fixed to through the tight circuit board of helping formula power supply fully of fixation clamp clamp, thus will radiator fan with the circuit board assembly is fixed to finish. Through the connection structure that the setting element replaced current lock screw connects fixed radiator fan and circuit board, and it is convenient, fast to have an equipment, occupies the less advantage in space on the circuit board.

Description

Cooling fan and its backup power supply

The invention relates to a cooling fan and a backup power supply device with the cooling fan.

The circuit board of the backup power supply contains more power components. These power components generate a lot of heat when working. If the heat is not dissipated in time, the excessive temperature will affect the performance and service life of the power components. On the circuit board of many backup power supplies, there is a cooling fan for heat dissipation. The cooling fan accelerates the flow of air around the circuit board, thereby quickly taking away the heat generated by the power components on the circuit board to reach the circuit. The purpose of board heat dissipation.

The existing cooling fan for the heat dissipation of the backup power supply usually uses a screw as a fastener to fix the cooling fan on the circuit board. The disadvantages of this structure are that assembly and disassembly are troublesome, time consuming, and the screws need to be purchased. Increasing the cost; in order to meet the safety distance, a large area needs to be reserved on the circuit board to prevent the electronic component or circuit wiring from jumping, and the cooling fan needs to occupy a large area on the circuit board, so that the circuit board is used The usable area of the soldered electronic component becomes small.

One of the objects of the present invention is to provide a heat dissipating fan that can be quickly and easily assembled and detached to or detached from a circuit board.

The second object of the present invention is to provide a backup power supply device, which dissipates heat The fan can be quickly and easily attached to or detached from the board.

In order to achieve the above object, a heat dissipation fan includes a base, a fan blade mounted on the base, and a positioning member. One end of the positioning member is fixed to the base, and the other end of the positioning member is provided with a fixing clip, and the fixing clip is used for clamping the plate. The object is such that the heat dissipation fan is fixed to the plate.

In an embodiment of the invention, there are at least two positioning members, and at least two positioning members are distributed on opposite sides of the base. Positioning members are provided on opposite sides of the base to more stably fix the heat dissipation fan to the circuit board.

In an embodiment of the invention, the positioning member further includes a first connecting structure, and the base includes a second connecting structure, and the first connecting structure is matched with the second connecting structure to fix the positioning member and the base.

In an embodiment of the invention, the first connecting structure is a positioning protrusion, a positioning hole or a positioning hook, and the second connecting structure is a corresponding positioning hole, a positioning protrusion or a positioning hook.

In an embodiment of the invention, the first connecting structure and the fixing clip are respectively located on opposite sides of the positioning member and are opposite in position. In this way, the positioning member can be connected to the base and the volume is small, which is advantageous for miniaturization of the product.

In an embodiment of the invention, the positioning member further includes a positioning hole disposed at the bottom of the positioning member for fixing to the outer casing of the device to which the cooling fan is mounted.

In an embodiment of the invention, the retaining clip is an elastic retaining clip and is formed with a clamping region for holding the panel. The fixing clip itself is elastic, so that it can be provided with a clamping area, and the plate can be directly inserted into the clamping area, and the elastic member (for example, a spring) is used to clamp the clip of the plate, and an external force is required to be applied to the clip in advance. The opening thereof forms a clamping zone, and then the plate can be embedded in the clamping zone to complete the assembly. Compared to such a clip, the fixing clip of the present invention can quickly clamp the plate.

In an embodiment of the invention, the fixing clip includes a lower clip, a fixing portion formed by bending upwardly along a side of the lower clip, and an upper portion extending along a corresponding position of the fixing portion to a position corresponding to the lower clip. A clamping zone is formed between the clip, the upper clip and the lower clip.

In an embodiment of the invention, the intermediate portion of the fixing portion and the upper clip is formed with a through venting opening, so that the upper clip is divided into two upper clamping pieces by the venting opening, and each upper clamping piece and the lower clamping piece The sheet forms a fixed sub-clip whereby the retaining clip is divided into two fixed sub-clips. The venting port prevents the positioning member from blocking the wind blown by the cooling fan to the circuit board, thereby not affecting the heat dissipation effect of the circuit board. In addition, the cooling fan of the present invention can be fixed on the side of the circuit board. Since the positioning member is provided with a vent, the position of the cooling fan can be made lower and the wind blown out is not blocked, so that the wind energy blown by the cooling fan is Closer to the board, the heat dissipation effect is better. The upper clip is separated to form two upper clips, and the lower clip is not separated and kept intact, so that the positioning member can more firmly clamp the circuit board, and at the same time, the circuit board can be evenly stressed and difficult to be used. It is deformed by the positioning member of the present invention.

In an embodiment of the invention, the fixing portion is divided into two fixed portions by the vent, and each of the fixed portions is provided with a positioning protrusion for fixing with the base of the heat dissipation fan.

In an embodiment of the invention, the positioning member is an elastic plastic member. The use of elastic plastic to make the positioning member is not only low in cost, but also the plastic texture is softer than the metal, and it is not easy to pinch the circuit board.

A backup power supply device includes a circuit board and the above-mentioned cooling fan, wherein the board is a circuit board, and the cooling fan is mounted on the edge of the circuit board through a fixing clip of the positioning member.

The heat dissipating fan of the backup type power supply device of the present invention is provided with a positioning member, and the positioning member is provided with a fixing clip, and the fixing plate can clamp the circuit board, thereby fixing the cooling fan on the circuit board. Compared with the existing backup power supply using a lock screw to fix the heat dissipation fan, the backup power supply of the present invention can assemble the fixed circuit board and the heat dissipation fan more quickly and conveniently, and, in addition, only the circuit board It is necessary to reserve a position at the edge for the clamp to be clamped. After the heat sink is assembled and fixed to the circuit board, the area occupied by the circuit board is smaller, so the area of the printed circuit board for soldering electronic components is larger, and the board is soldered on the board. The distance between the various electronic components can be reserved larger, so that the circuit board is not prone to flashover when it is working.

In an embodiment of the invention, the circuit board includes a first circuit board and a second circuit board. The positioning members are at least two and are disposed on opposite sides of the base, and the positioning members on opposite sides of the base respectively The first circuit board and the second circuit board are interposed to fix the heat dissipation fan between the first circuit board and the second circuit board. This allows the cooling fan to be more securely attached to the board.

In an embodiment of the invention, the backup power supply further includes a casing, the circuit board and the cooling fan are located in the outer casing, the circuit board is fixed to the outer casing, and each positioning component is provided with a positioning hole, and the outer casing is provided with a positioning protrusion. The positioning hole is mated with the positioning protrusion to fix the positioning member to the outer casing. In this way, on the one hand, the cooling fan can be fixed more stably, and on the other hand, the weight of the cooling fan is not added to the circuit board to prevent the circuit board from being deformed.

1‧‧‧Shell

11‧‧‧ vents

2‧‧‧ boards

21‧‧‧First board

22‧‧‧Second circuit board

3‧‧‧ cooling fan

31‧‧‧ Pedestal

311, 324‧‧‧ positioning holes

32‧‧‧ Positioning parts

321‧‧‧fixed clip

321a, 321b‧‧‧ fixed clip

3211‧‧‧Upper clip

3211a, 3211b‧‧‧ upper clips

3212‧‧‧Fixed Department

3212a, 3212b‧‧‧ Fixed Division

3213‧‧‧Upper clip

3214‧‧‧Clamping area

3214a, 3214b‧‧‧ clamping zone

322‧‧‧ventilation holes

323‧‧‧Positioning bumps

FIG. 1 is a schematic structural view of a backup power supply of the present invention.

Fig. 2 is a schematic view showing the structure of the circuit board and the heat dissipation fan of the first embodiment.

Fig. 3 is a schematic structural view of a heat dissipation fan of the present invention.

Fig. 4 is a structural schematic view showing the base of the heat dissipation fan of the present invention.

Figure 5 is a side view of the positioning member of the present invention.

Fig. 6 is a perspective view showing the three-dimensional structure of the positioning member of the present invention.

Figure 7 is a perspective view showing another perspective of the positioning member of the present invention.

Fig. 8 is a view showing the structure of the circuit board and the heat dissipation fan of the second embodiment.

As shown in FIG. 1 and FIG. 2, the backup power supply of the present embodiment includes a casing 1, a circuit board 2, and a cooling fan 3. The casing 1 is provided with a heat dissipation hole 11, and the circuit board 2 and the cooling fan 3 are located. Inside the casing 1, the circuit board 2 is fixed to the casing 1. As shown in FIG. 3, the heat dissipation fan 3 of the present embodiment includes a base 31, a positioning member 32, and a blade attached to the base 31. The blade is mounted inside the base 31 and is blocked, so that the third figure is not Referring to the second and third figures, one end of the positioning member 32 is fixed to the base 31, and the other end is provided with a fixing clip 321 which clamps the circuit board 2 to make the cooling fan 3 and the The circuit board 2 is fixed. The circuit board 2 is clamped by the fixing clip 321 to fix the heat dissipating fan 3 and the circuit board 2, and the clamping fixing method can be used in comparison with the conventional method of using the locking screw to fix the cooling fan 3 and the circuit board. The assembly of the cooling fan 3 and the circuit board 2 is realized more quickly and conveniently. In addition, since the circuit board 2 only needs to reserve a position at the edge for the clamping clip 321 to be clamped, the cooling fan 3 is fixed after being fixed to the circuit board 2. The area on the circuit board 2 is also smaller, and the flashover phenomenon can be prevented without leaving a reserved area on the circuit board, so that the area of the electronic component to be soldered on the circuit board 2 can be increased, and the electronic components soldered on the circuit board 2 can be added. The distance between the two can be set larger, so that the circuit board 2 of the backup power supply of the embodiment is less prone to flashover during operation.

Referring to FIG. 3 to FIG. 7 , the base 31 and the positioning member 32 of the heat dissipation fan 3 of the present embodiment are separated, and the positioning member 32 is provided with a positioning protrusion 323 (first connection structure), and the base 31 is provided with Positioning protrusion 323 concave and convex positioning hole 311 (second connection structure), positioning protrusion 323 and fixing The positioning hole 32 is fixed to the base 31, and the positioning hole 311 is not limited to the lower corners of the base 31. The upper corners of the base 31 can also define a positioning hole 311 for the positioning member 32 to be flexible. use. In other embodiments, the positioning member 32 can also be non-separated from the base 31 by welding or integrally formed with the base 31. Of course, the connection manner of the base 31 and the positioning member 32 is not limited to the above solution, and a positioning hole may be disposed on the positioning member 32, and a positioning protrusion matched with the positioning hole may be disposed on the base 31, or in the positioning member. 32 and the base 31 are provided with other engaging elements, such as a hook structure that is coupled to each other.

Referring to Fig. 2, in the first embodiment, the heat radiating fan 3 is provided with only one positioning member 32 through which the heat radiating fan 3 clamps the edge of the circuit board 2 to be fixed to the circuit board 2. Of course, the number of the positioning members 32 is not limited to one. The plurality of positioning members 32 may be disposed on the cooling fan 3, and the plurality of positioning members 32 may be located on the same side of the cooling fan 3, or may be located in the cooling fan 3 respectively. On the different sides, for example, a plurality of positioning members 32 are distributed on both sides adjacent to the base 31.

Further, as shown in FIG. 7, each of the positioning members 32 is further provided with a positioning hole 324 at a bottom thereof, and a corresponding position of the outer casing 1 is provided with a positioning protrusion, and the positioning of the positioning member 32 through the positioning hole 324 and the outer casing 1 is performed. The bumps are fitted so that the heat radiating fan 3 is also fixed to the outer casing 1. In this way, the stability of the heat dissipation fan 3 can be further enhanced, and the weight of the heat dissipation fan 3 can be shared by the outer casing 1 to prevent the circuit board 2 from being deformed by the entire weight of the heat dissipation fan 3, and the backup of the embodiment can also be used. When the power supply is moving, the cooling fan 3 does not shake.

As shown in FIG. 5, the positioning member 32 of the present embodiment is provided with a lower clip 3213, and the lower clip 3213 is bent upward along one side of the lower clip 3213 to form a fixing portion 3212, and the fixing portion 3212 is downwardly and downwardly clipped. The corresponding position of the 3213 extends to form the upper clip 3211, and the upper clip 3211 and the lower clip 3213 have a certain spacing therebetween, thereby forming a clamping area between the upper clip 3211 and the lower clip 3213. 3214, the upper clip 3211, the lower clip 3213, the fixing portion 3212, and the clamping portion 3214 constitute a fixing clip 321. In this embodiment, the positioning member 32 is made of elastic plastic, so that the positioning member 32 itself has elasticity, and the fixing clip 321 is also elastic. Therefore, the fixing clip 321 of the positioning member 32 of the embodiment itself forms a clamping region. 3214, when assembling the heat dissipation fan 3 and the circuit board 2 (the first circuit board 21 or the second circuit board 22), the circuit board 2 only needs to be directly embedded in the clamping area of the fixing clip 321 of the positioning member 32 of the embodiment. 3214 can be, fast and convenient. In other embodiments, the retaining clip can also be a clip that relies on an elastic member (such as a spring) to obtain an elastic force to clamp the plate. The clip needs to be externally applied to the clip to open the clamping area before forming the clamping area. The assembly of the heat dissipation fan 3 and the circuit board 2 is completed on the clamping circuit board 2 in the clamping circuit board 2, because the board is embedded in the clamping area and the external force is removed to complete the assembly, which is time consuming. It is obviously more convenient and quick. In addition, the structure of the fixing clip 321 given in this embodiment is also simpler.

Further, in the present embodiment, the bottom surface of the upper clip 3211 and the top surface of the lower clip 3213 are parallel to each other, so that the upper and lower sides of the clamping portion 3214 are parallel, so that the fixed clip 321 can be clamped therein. The circuit board 2 is evenly stressed and is not easily deformed. In other embodiments, the fixing clip 321 can be provided with a card protrusion (not shown) on the upper clip 3211 and the lower clip 3213, and the card protrusions are respectively located at upper and lower ends of the clamping area 3214. The circuit board 2 can be correspondingly provided with a card slot or a card hole. After the edge of the circuit board 2 is embedded in the clamping area 3214 of the fixing clip 321 , the card convexly engages into the card slot or the card hole, thereby clamping the circuit board 2 It’s getting tighter.

Further, as shown in FIG. 6, a middle portion of the fixing clip 321 is formed with a through vent 322. The upper clip 3211, the fixing portion 3212 and the clamping portion 3214 are both divided into two by the vent 322, thereby forming an upper clip. The pieces 3211a and 3211b, the fixed sections 3212a and 3212b, the clamping sub-areas 3214a and 3214b, the fixing clip 321 is also divided into two fixed sub-clips, the upper clamping piece 3211a, the lower clamping piece 3213, the fixed portion 3212a and the clamping sub-region 3214a together constitute a fixed sub-clip 321a, and the upper clamping piece 3211b, the lower clamping piece 3213, the fixed dividing portion 3212b and the clamping sub-region 3214b together constitute a fixed sub-clip 321b. The vent 322 prevents the positioning member 32 from blocking the wind blown by the heat radiating fan 3 to the circuit board 2, thereby not affecting the heat dissipation effect of the circuit board 2. In addition, the heat radiating fan 3 fixed by the positioning member 32 of the embodiment can be It is fixed on the side of the circuit board 2. Since the positioning member 32 of the embodiment is provided with the vent 322, the position of the cooling fan 3 can be made lower and the blown air is not blocked by the positioning member 32, so that the cooling fan 3 is blown out. The wind energy is closer to the circuit board 2, and the heat dissipation effect is better. The lower clip 3213 is separated from the vent 322 and remains intact, so that the positioning member 32 can hold the circuit board 2 more stably, and at the same time, the circuit board 2 can be evenly stressed, and is not easily positioned by the embodiment. The piece 32 is clamped and deformed.

Referring to Figures 6 and 7, each of the positioning members 32 has two positioning projections 323 formed on the fixed portions 3212a and 3212b, respectively, and the clamping sub-regions 3214a and 3214b, respectively. Relative settings. The positions of the two positioning protrusions 323 are opposite to the positions of the clamping sub-area 3214a and the clamping sub-area 3214b, respectively, so that the positioning member 32 is fixed to the base 31 more stably, and the shaking is less likely to occur. Referring to FIG. 4, the two positioning holes 311 corresponding to the two positioning protrusions 323 are respectively located at the lower two corners of the corresponding side of the base 31.

In other embodiments, since the positioning member 32 is made of elastic plastic, a convex portion slightly protruding outward may be disposed at a position near the end of the positioning protrusion 323, and a corresponding groove is formed in the positioning hole 311. When the positioning protrusion 323 is inserted into the positioning hole 311, the protrusion is pressed hardly to be elastically tightened and embedded in the positioning hole 311, and then the positioning member 32 is pushed hard to completely embed the positioning protrusion 323 into the positioning hole 311. Inside, the raised portion also snaps into the recess, thereby allowing the positioning member 32 to be more securely fixed to the base 31.

FIG. 8 shows a second embodiment. The difference from the first embodiment is that the heat dissipation fan 3 is provided with at least two positioning members 32 which are distributed on opposite sides of the base 31 (for example, left and right sides). The backup power supply includes a first circuit board 21 and a second circuit board 22, and the positioning members 32 distributed on opposite sides of the base 31 respectively clamp the first circuit board 21 and the second circuit board 22, thereby dissipating heat The fan 3 is fixed between the first circuit board 21 and the second circuit board 22. The first circuit board 21 and the second circuit board 22 are respectively an electromagnetic interference filter circuit board (EMI circuit board) and a main circuit board, and the first circuit board 21 may also be a lightning protection circuit board. As shown in FIG. 8, the heat dissipation fan 3 of the present embodiment is provided with two positioning members 32, which are respectively located on the left and right sides of the base 31, and respectively clamp the first circuit board 21 and the second. Circuit board 22. Different from the first embodiment, in this embodiment, the positioning member 32 can fix the heat dissipation fan 3 more firmly between the first circuit board 21 and the second circuit board 22, thereby preventing the heat dissipation fan 3 from being damaged by itself. The influence of the weight is more serious in the position away from the positioning member 32, so that the wind blown by the cooling fan 3 is inclined obliquely upward to affect the heat dissipation effect, and the excessive torque is prevented from being applied to the circuit board 2, causing the circuit board 2 to be excessively large. Deformation causes damage.

With reference to FIG. 3 , in the two positioning members 32 of the cooling fan 3 of the present embodiment, the two positioning protrusions 323 of the first positioning member 32 are respectively embedded in the two positioning holes 311 on the lower left side of the base 31, A positioning member 32 is thus fixed on the lower left side of the base 31; two positioning protrusions 323 of the second positioning member 32 are respectively embedded in two positioning holes 311 below the right side of the base 31, and the second positioning member 32 is This is fixed below the right side of the base 31.

In the third embodiment, the positioning member 32 can also be changed to the position of the base in accordance with the arrangement of the first circuit board 21, unlike the first circuit board 21 and the second embodiment of the second embodiment as shown in FIG. The circuit board 22 is disposed in parallel, and the first circuit board 21 and the second circuit board 22 of the embodiment are vertically disposed. The first positioning member 32 can be rotated by 90 degrees and fixed by the positioning protrusion 323 and the positioning hole 311 of the base side, so that the first positioning member 32 can be clamped to the first circuit. On the board 21.

In the fourth embodiment, different from the second embodiment, the backup power supply includes only the second circuit board 22, the heat dissipation fan 3 is provided with at least two positioning members 32, and the second positioning member 32 is used. The second circuit board 22 is interposed, and the first positioning member 32 does not sandwich the circuit board. As shown in FIG. 7, the first positioning member 32 is engaged with the positioning projection corresponding to the outer casing 1 by the positioning hole 324 provided at the bottom, so that the first positioning member 32 is fixed to the outer casing 1. The first positioning member 32 is not limited to be disposed at the lower corners of the base 31 and is fixed to the bottom plate of the outer casing 1. The first positioning member 32 may be disposed at the two sides of the base 31 and fixed to the outer casing. The side plate of 1 or the first positioning member 32 is disposed at the upper two corners of the base 31 and fixed to the top plate of the outer casing 1.

The above disclosure is only a preferred embodiment of the present invention, and of course, the scope of the invention is not limited thereto, and thus the equivalent changes made by the invention in the scope of the invention are still covered by the invention. .

2‧‧‧ boards

3‧‧‧ cooling fan

32‧‧‧ Positioning parts

321‧‧‧fixed clip

Claims (14)

A cooling fan includes: a base; a blade mounted on the base; and a positioning member, the positioning member is fixed at one end to the base, and the other end of the positioning member is provided with a fixing clip, wherein the fixing clip It is used to sandwich a plate to fix the heat dissipation fan to the plate. The heat dissipation fan of claim 1, wherein the positioning member has at least two, and the at least two positioning members are distributed on opposite sides of the base. The heat dissipation fan of claim 1, wherein the positioning member further includes a first connecting structure, the base includes a second connecting structure, and the first connecting structure is matched with the second connecting structure, thereby The positioning member is fixed to the base. The heat dissipation fan of claim 3, wherein the first connection structure is a positioning protrusion, a positioning hole or a positioning hook, and the second connection structure is a corresponding positioning hole, a positioning protrusion or a positioning hook. The heat dissipation fan of claim 3, wherein the first connecting structure and the fixing clip are respectively located on opposite sides of the positioning member and are opposite in position. The ventilating fan of claim 3, wherein the positioning member further comprises a positioning hole disposed at a bottom of the positioning member for fixing to a casing of a device to which the cooling fan is mounted. The heat dissipation fan of claim 1, wherein the fixing clip is an elastic fixing clip and is formed with a clamping region for clamping the plate. The heat dissipation fan of claim 7, wherein the fixing clip comprises a lower clip, along a fixing portion extending from one side of the lower clip and extending upwardly along an upper end of the fixing portion to an upper clip formed at a position corresponding to the lower clip, and forming between the upper clip and the lower clip The clamping zone. The heat dissipating fan of claim 8, wherein an intermediate position of the fixing portion and the upper clip is formed with a venting opening, so that the upper clip is divided into two upper clips by the venting opening. And each of the upper clips forms a fixed sub-clip with the lower clip, and the fixed clip is thereby divided into two of the fixed sub-clips. The heat dissipation fan of claim 9, wherein the fixing portion is divided into two fixed portions by the vent, and each of the fixed portions is convexly disposed for fixing with a base of the heat dissipation fan. Bump. The heat dissipation fan of claim 7, wherein the positioning member is an elastic plastic member. A backup power supply device includes: a circuit board; and a heat dissipation fan including a base, a blade mounted to the base, and a positioning member, the positioning member is fixed at one end to the base, The other end of the positioning member is provided with a fixing clip for clamping the circuit board to fix the cooling fan to the circuit board, and the cooling fan is mounted on the edge of the circuit board through the fixing clip of the positioning member. The backup power supply device of claim 12, wherein the circuit board comprises a first circuit board and a second circuit board, the positioning member having at least two and distributed on opposite sides of the base The positioning members located on opposite sides of the base respectively sandwich the first circuit board and the second circuit board, thereby fixing the heat dissipation fan between the first circuit board and the second circuit board. The backup power supply device of claim 12, wherein the backup power supply is The device further includes a casing, the circuit board and the cooling fan are located in the casing, the circuit board is fixed to the casing, and the positioning component is provided with a positioning hole, the casing is provided with a positioning protrusion, the positioning hole and the positioning convex The block mating connection secures the keeper to the outer casing.