TWI262252B - Heat-dissipating device - Google Patents

Abstract

The present invention provides a heat-dissipating device with a two-side way for securing its rotating shaft, which includes a housing having a first frame and a second frame, and a rotor disposed in the housing, wherein the first frame has a bearing tube for receiving a first bearing and the second frame has a base for receiving a second bearing so as to support and fix the shaft of the rotor.

Description

1262252

[Technical field] This case relates to a high-heating heat removal device with a fixed design of ugly horses, especially for a fan. A double-sided [prior art] generally known as a blower, a motor n, an old i', as shown in FIG. 1A, comprising an opening 1 Ο 1, as a 1° structure 12 and an upper cover 13, wherein the outer cover Box 10 is the outer frame i. The pedestal 1 〇 2 is: the air outlet of the fan, and the motor η is sleeved with a circular opening 131, and the blade structure 12 is moved. The upper cover 13 . Two a t + M is used as the air inlet of the blower. The blade structure 1 〇 two numbers 1 2 1 , an annular plate 1 2 2 and a plurality of blades 123 provided thereon. 10 frame

In the conventional blower design, the motor is fixed on one side, as shown in Figure 1 B and Figure c. In the second drawing, the single shaft bearing 14 is used to fix and support the rotating shaft 15, the bearing 14 is disposed in the base 102; and in the first C diagram, the two bearings 1 are utilized. 4 1,1 4 2 are all disposed in the base 1 0 2 to fix and support the rotating shaft 15 . However, when γ is applied to a high-pressure centrifugal fan, such a design is prone to an unstable phenomenon, which makes the vibration more serious. For the sake of the job, the present invention, in view of the lack of the prior art, is the result of careful investigation and research and a perseverance, and finally creates the "heat-dissipating melon" of the case. The following is a brief description of the case.

1262252 V. DESCRIPTION OF THE INVENTION (2) A main object of the present invention is to provide a heat sink device designed using a bidirectional fixed motor. Another object of the present invention is to design a high pressure centrifugal fan and reduce the occurrence of vibration. According to the present invention, there is provided a method of applying a bidirectional fixed motor to provide stability during high speed operation, and contemplates a first frame and a second frame. The heat dissipating device includes a frame having an inner portion and a middle portion. The support is fixed to the preferred group. The first side. This move is the first one. The preferred set of the blade outer diameter blade group and the blade group and the bucket portion may be formed in one piece, and further the second portion of the moving ground, one leaf portion, one leaf, one leaf, or the second is different from each other, the body shot The combination of the body and the frame, the frame of the frame, the group of the moving piece, and the group of the piece of the piece can be mutually flanked. The ring has a leaf portion which is connected to the first and the first and the first phase. The movable portion has a sleeve and a base for receiving the shaft. There is a bottom plate outside the ring portion The second blade group The two blade groups are the same or different from the two blade groups. And a part of the connection is disposed in the fan blade portion, and is disposed on the fan frame, and is configured to receive a first shaft and a second bearing, and extend to the bottom plate table together with a common ring portion and a first blade portion. Provided on the surface of the bottom plate, the number, shape or size of the blades are alternately arranged up and down or left and right, and the first blade group and the second blade are not connected at all. The same side of the first leaf portion is formed in the same manner as the portion, the bottom plate, the first blade group and the second blade type. Alternatively, the bottom plate is formed with the first vane, and the ring portion and the second vane group are integrally formed as a complete vane portion. The fan frame has at least one air inlet formed in the second frame

Page 8 1262252 V. Description of invention (3). The inner edge of the air inlet has a facet that extends toward the frame N to separate the space inside the frame to define an airflow path, and one end of the face has a flange to define the set An inlet of the air flow passage, and the bucket portion has a blade group extending toward the vicinity of the inlet of the air flow passage to extend in the # direction. The height of the airflow channel and the height of the flow channel flowing through the bucket portion are partially or completely overlapped, and the load channel of the airflow channel is substantially equal to the cross-sectional area of one of the air outlets of the fan frame. In addition, the air inlet of the second frame is further provided with a base portion, and a plurality of flow guiding structures are disposed between the base portion and the wall surface for lifting the wind pressure of the heat dissipating device, wherein the plurality of diversion structures are connected Fixed to the base or the wall. The plurality of flow guiding structures may be strip-shaped, flat-shaped, curved-arc or wing-shaped. The plurality of flow guiding structures have an angle of inclination which is similar in shape to the blade shape of the bucket portion. Preferably, the plurality of flow guiding structures are partially connected between the base wall faces, and the other portion is formed by connecting the base ends to the base portions and the intermediate portions being discontinuous to form free ends. More preferably, the plurality of flow guiding structures are partially connected between the base wall faces, and the portions are connected at one end to the wall surface and at the other end to the self. The other end is connected to the base at one end and the free end at the other end. In addition, the fan frame has at least one air outlet and is provided with a structure. Furthermore, the fan frame has an axial compression type air passage. μ~ The heat sink can be a one-way air blower, an upside down fan, a two-way air blower or an axial fan.式离~ In addition, the heat sink further includes a drive: a sleeve that is sleeved on the base

1262252 V. INSTRUCTION DESCRIPTION (4) One of the sleeves and coupled to the present invention can be understood from the following figures. In the moving blade portion, the moving blade portion is used for the detailed description. Parts - more in-depth [implementation, please implement the method of entering the wind type 22, a 21 has a coupling into the first, and the method is to be separated and timed.] Referring to Figures 2A to 2C, the turtle is +, It is not a case of divergence in this case. In this embodiment, the first, _, ..., waved can also be applied to the axial fan. The centrifugal fan, which mainly includes a first frame = wind ^ is a single $ drive device 23, an iron shell 24 and a moving leaf portion. J Second Frame A sleeve 211 allows the drive unit to be placed within the first frame turbulent blade portion 25 to drive the bucket portion. The second frame and the tuyere 221 and a wall surface 222 extending downward from the inner edge of the air inlet are combined with the first frame 21 by the second frame 22 and the first frame 2 1 . The space formed by the combination is divided into an air channel 26 and a space for accommodating the blade portion 25, and is formed into an air outlet 212. The bottom end of the wall has a radially outward extension, but

The flange 22 3 defines an inlet 261 of the collection air passage. The moving blade portion 25 is composed of a ring portion 251, a bottom plate 252, a first blade group 253 and a second blade group 254. The first blade group 253 and the second blade group 254 are composed of a plurality of blades. The composition 'the middle one blade group 2 5 3 extends downward from the periphery of the ring portion 251 to the surface of the bottom plate 252.谠 The arrangement of the first blade set 253 and the second blade set 254 may be in a staggered arrangement as shown in Figure 2A.

1262252 V. Description of the Invention (5) Of course, the size, shape and arrangement of the first blade set 2 53 and the second blade set 2 54 include, without limitation, two blade set designs as shown in FIG. 2A. The composite blade structure design of the bucket portion may also have a design of at least two blade groups. The number, shape and size of the blades of the various blade sets may be the same or different, and the outer diameter and height of each blade may be the same or different. In the arrangement configuration, each of the blade groups in the composite blade structure may be connected to each other, partially connected or not connected at all, and each blade group may be co-located on the same side or the opposite side of the bucket portion. The ring portion, the bottom plate, the first blade group and the second blade group may be injection molded in an integrally formed manner. Alternatively, the bottom plate and the first blade group are integrally injection molded, and the ring portion and the second blade group are integrally injection molded, and finally the two are combined into a complete moving blade portion. Therefore, the design of any variations and modifications does not depart from the scope of the invention. The air inlet of the second frame 22 is further provided with a base portion 224, and a plurality of flow guiding structures 225 are disposed between the base portion 24 and the wall surface 222 for lifting the wind pressure of the centrifugal fan. When the centrifugal fan is operated, the airflow is sucked from the air inlet 22, passes through the first blade group 253 and the second blade group 254 of the bucket portion, and passes through the inlet at the airflow passage 26. At 2 1 1 , it is guided into the collection air passage 2 6 to perform pressurization and gas storage to avoid a rapid change of the wind pressure, and then the high air pressure air flow is discharged from the air outlet 2 1 2 . In this embodiment, the downwardly extending wall surface of the air inlet of the centrifugal fan is used to separate the air flow channel 26 and the moving blade portion 25, leaving only a small air outlet so that the flow The pressurization process of the air flow in the moving blade portion becomes

1262252 V. Description of invention (6) Long = 匕 force: rapid change. In the axial direction of the moving blade portion, the south degree of the rate ▲, L, the height of the flow path through the moving blade portion and the guiding structure can be partially or completely re-entered, so that the centrifugal fan can be The purpose of thinning. The cross-sectional area of the air flow path 26 is substantially equal to the area of the air outlet 212, thereby preventing the air flow from being low due to the change in area.牛_ In addition, this! The system uses a two-way motor fixed design, as shown in Figure 2B, except that the --bearing 231 is placed in the sleeve seat 211, and the second bearing 232 is in the second The inner side of the base portion m of the frame 22 is α; the shaft 27' of the portion 以 is provided to provide stable stability of the fan at high speed, and low vibration. Of course, the bearing used may be a ball bearing and a baul bearing or a self-lubricating bearing (sleeve. In addition: the present invention also adopts an axial compression type air duct design, as shown in Fig. 2. The flow guiding structure outside the way that the diversion structure is disposed at the air inlet can be additionally disposed at the air outlet, and: the number, shape and arrangement of the J can be differently selected according to the actual application. When the concept of the case is applied to an upside down centrifugal mouth, <::: type" machine J-axis flow fan, the flow guiding structure is arranged at the air inlet of the eight middle one or at the same time at each air inlet. According to the above description, the present invention provides a two-way solid C setting, especially for a high-pressure centrifugal fan, which is stable in speed and reduces the occurrence of vibration. It must be modified by the people who are familiar with the art, and the decoration of the invention (7), but it is not subject to the scope of the patent application.

IBBI Page 13 1262252 Brief Description of the Drawings Figure 1A shows a three-dimensional exploded view of a conventional blower. Figure 1B is a cross-sectional view of the first conventional blower. Figure 1C is a cross-sectional view of a second conventional blower. Fig. 2A is a perspective view of a preferred embodiment of the heat sink of the present invention. The rear view of the vertical section of the diagram is placed on the display of the heat and heat dissipation. Figure A A 2 2 The first is . Figure BC 2 2 The first component of the above figure is as follows: 1 0 : Frame 1 1 : Motor 1 2 : Blade structure 13: Upper cover 1 0 1 · Opening 1 0 2 : Base 1 3 1 : circular opening 1 2 1 : hub 1 2 2 : annular plate 123: vane 14, 141, 142 : bearing 1 5 : shaft 2 1 : first frame 2 2 : second frame 2 3 : drive unit 2 4 : Iron shell 2 5 : Moving blade portion 211 : Sleeve seat 2 3 1, 2 3 2 : Bearing 2 7 _· Shaft 221 : Air inlet 222 : Wall surface 2 6 : Collecting air passage 212 : Air outlet 2 2 3 : flange 26 1 : inlet 2 5 1 : ring portion 2 5 2 : bottom plate 2 5 3: first blade group 2 5 4 : second blade group

Page 14 1262252 Brief description of the diagram 2 2 5 : Diversion structure 2 2 4 : Base 29: Axial compression duct mBi第15页

Claims (1)

1262252 VI. Patent application scope 1. A heat dissipation device comprising: a frame having a first frame and a second frame; and a moving blade portion disposed in the frame, wherein the first frame has a set The sleeve is configured to receive a first bearing, and the second frame has a base for receiving a second bearing to jointly support a rotating shaft for fixing the bucket portion. 2. The heat sink according to claim 1, wherein the bucket portion has a bottom plate, a ring portion and a first blade group. 3. The heat sink of claim 2, wherein the first blade group extends downwardly from a periphery of the ring portion to a surface of the bottom plate. 4. The heat sink of claim 2, wherein the bucket portion further comprises a second blade set disposed on the surface of the bottom plate. 5. The heat sink of claim 4, wherein the first blade group and the second blade group are arranged in a staggered arrangement. 6. The heat sink of claim 4, wherein the number, shape or size of the first blade group and the second blade group may be the same or different. 7. The heat sink of claim 4, wherein the outer diameter or height of the blades of the first blade group and the second blade group may be the same or different. 8. The heat sink of claim 4, wherein the first blade group and the second blade group are connected to each other, partially connected or not connected at all. 9. The heat sink of claim 4, wherein the first blade group and the second blade group are on the same side of the bucket portion or on different sides of the bucket portion. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The heat sink of claim 4, wherein the ring portion, the bottom plate, the first blade group and the second blade group are integrally formed by injection molding. The heat dissipating device of claim 4, wherein the bottom plate and the first blade group are integrally injection molded, and the ring portion and the second blade group are integrally injection molded, and then combined into a complete motion. Leaf department. The heat dissipating device of claim 1, wherein the fan frame has at least one air inlet formed on the second frame. The heat dissipating device of claim 13, wherein the inner edge of the air inlet has a wall surface extending toward the inside of the fan frame to separate the space inside the fan frame to define an air flow channel. . The heat sink of claim 14, wherein one end of the wall has a flange to define an inlet of the airflow passage. The heat dissipating device of claim 15, wherein the bucket portion has a blade group extending radially toward the vicinity of the inlet of the collecting air passage. The heat dissipating device according to claim 14, wherein the height of the gas collecting passage and the height of the flow passage passing through the moving portion are partially or completely overlapped. The heat dissipating device of claim 14, wherein the gas collecting passage has a cross-sectional area substantially equal to a cross-sectional area of one of the air outlets of the fan frame. 1 9. The heat sink of claim 14, wherein the second Page 17 1262252 VI. Scope of Application Patent The air inlet of the frame is further provided with a base portion and a plurality of diversion structures are disposed between the base portion and the wall surface for lifting the wind pressure of the heat dissipating device. The heat sink of claim 19, wherein the plurality of flow guiding structures are connected and fixed to the base or the wall. 2 1. The heat sink according to claim 19, wherein the plurality of flow guiding structures are strip-shaped, flat-plate-shaped, curved-arc or wing-shaped structures. 2. The heat sink according to claim 19, wherein the plurality of flow guiding structures are partially connected between the base and the wall surface, and the other portion is connected to the base and the wall respectively. The middle part is discontinuous and forms a free end. 2. The heat sink of claim 19, wherein the plurality of flow guiding structures are partially connected between the base and the wall, the portion being connected to the wall at one end and the free end at the other end. The other part is connected to the base at one end and the free end at the other end. 2. The heat sink of claim 19, wherein the plurality of flow guiding structures have an angle of inclination. 2. The heat sink of claim 19, wherein the shape of the flow guiding structure is similar to the shape of the blade of the bucket portion. The heat dissipating device of claim 1 or claim 9, wherein the fan frame has at least one air outlet and a flow guiding structure is provided. The heat dissipating device of claim 1, wherein the fan frame has an axial compression type air passage. The heat dissipating device of claim 1, wherein the heat dissipating device can be a one-way air-inlet type blower, an upside down centrifugal fan, and a two-way air inlet. Page 18 1262252 VI. Patent application Type blower or axial fan. The heat dissipating device of claim 1, further comprising a driving device sleeved on a sleeve seat of the base and coupled to the bucket portion for driving the bucket portion. Page 19