Slotting-free type cooling fan

Abstract

A grooving-free type cooling fan comprises a base, a cooling fin set arranged on the base, a clamping sleeve arranged on the cooling fin set in a sleeved mode, a positioning base arranged in the cooling fin set, a fan body arranged on the positioning base, an elastic pressing strip arranged on the positioning base in a penetrating mode and a retaining ring arranged on the elastic pressing strip and the clamping sleeve in a buckled mode. A first limiting groove is formed in the bottom of the limiting part, the elastic pressing strip comprises a plurality of main body sections, clamping sections connected with every two adjacent main body sections, two matching sections connected to the ends of the main body sections on the two sides respectively and two clamping heads connected to the tail ends of the two matching sections respectively, second limiting grooves extending downwards are formed in the clamping heads, and the matching sections warp upwards. The matching section elastically deforms, and the buckling ring is buckled in the second limiting groove of the clamping head and the first limiting groove of the limiting part. According to the utility model, the fan body can be fixed without additionally slotting on the radiating fin group, so that the cost and the processing efficiency of a product are effectively reduced, and the whole fan is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to a heat dissipation device, in particular to a slot-free heat dissipation fan. Background Art

[0002] A cooling fan is used to cool high-power electronic components within a computer chassis. It rotates at high speed, driving airflow, thereby quickly transferring heat from the components into the surrounding air, achieving a cooling effect. With the continuous advancement of technology, there are more and more types of cooling fans on the market, and their performance is getting better and better.

[0003] The cooling fan includes a fan body, a heat sink group and a buckle. The heat sink group consists of several heat sinks connected into a whole. The heat sink group is processed with a slot. During assembly, the buckle is buckled on the slot and the fan body at the same time, thereby fixing the fan body to the heat sink group.

[0004] For the above cooling fans, it is necessary to process the snap-on sockets on the heat sink, and then form the slots by the snap-on sockets between the heat sinks. On the one hand, this increases the difficulty of processing the heat sink. On the other hand, it requires high consistency during the snap-on socket processing. If the snap-on sockets between the heat sinks are inconsistent, the fan body and the heat sink assembly are prone to loosening when fixed by the buckle. Utility Model Content

[0005] Based on this, it is necessary to provide a slot-free cooling fan to address the deficiencies in the prior art.

[0006] 12. The heat dissipation device as described in claim 9, wherein the bridge has two opposite ends, and one of the ends is disconnected from the mounting plate to form a round shank to allow the bridge to move in a direction of not more than one axis, and the bridge has two opposite ends, each of the ends being connected to the mounting plate, the wires being collected by the bridge.

[0007] In one embodiment, the heat sink group includes a plurality of heat sinks, and the heat sinks in the same group are distributed along an arc direction. The two heat sink groups are separated by a certain distance, thereby forming an avoidance space between the two heat sink groups, and the positioning head of the elastic pressure strip extends from the avoidance space.

[0008] In one embodiment, the positioning seat is provided with a slot extending along its axial direction, and the elastic pressure strip passes through the slot of the positioning seat.

[0009] In one embodiment, the positioning seat is provided with a plurality of positioning protrusions at the bottom of the slot, and a positioning groove is formed on the back of the positioning section, and the positioning groove of the elastic pressure strip is clamped in the positioning protrusions.

[0010] In one embodiment, the locking section is bent in a V-shape, and the cross-section of the positioning protrusion is triangular.

[0011] In one embodiment, the heat sink includes a first functional segment, a second functional segment, a third functional segment and a fourth functional segment that are continuously bent and connected in sequence. The tail end of the first functional segment is formed on the positioning segment. The two groups of heat sinks are combined to form a receiving space. The main body of the sleeve is mounted on the outside of the second functional segment of the two groups of heat sinks. The third functional segment limits the sleeve, and the positioning seat is placed in the receiving space.

[0012] In one embodiment, the mating segment is further provided with a functional groove, and the extending direction of the functional groove is consistent with the extending direction of the mating segment.

[0013] In one embodiment, the main body is provided in a hollow ring shape, the limiting portion is connected to the outer peripheral surface of the main body, and the two limiting portions are provided opposite to each other.

[0014] In one embodiment, the fan body is provided with a connecting arm, which is mounted on the positioning seat.

[0015] In one embodiment, the second limiting groove passes through the locking head along the front-to-back direction.

[0016] The beneficial effect of the slot-free cooling fan of the utility model is that: based on the base, heat sink assembly, and fan body, a sleeve, a positioning seat, an elastic pressure strip, and a retaining ring are further provided. The fan body is mounted on the positioning seat, the elastic pressure strip is passed through the positioning seat, and the retaining ring is buckled with the elastic pressure strip and the positioning head on the sleeve and the main body of the sleeve on the same side. The mating section elastically deforms, thereby fixing the positioning seat and the fan body mounted on the positioning seat. The utility model can achieve the fixing of the fan body without additional slots in the heat sink assembly, effectively saving product cost and processing efficiency, and the overall disassembly and assembly are convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the slot-free cooling fan of the utility model;

[0018] Figure 2 for Figure 1 An exploded view of the limiting device of the slot-free cooling fan shown;

[0019] Figure 3 for Figure 1 The schematic diagram of the structure of the ferrule of the slot-free cooling fan is shown;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the middle card set installed on the heat sink group;

[0021] Figure 5 for Figure 1 Enlarged view of part A. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0028] See also Figures 1 to 5 The utility model provides a slot-free cooling fan, comprising a base 10, two groups of heat sink groups 20 mounted on the base 10, a sleeve 70 sleeved on the heat sink group 20, a positioning seat 40 provided inside the heat sink group 20, a fan body 30 mounted on the positioning seat 40, an elastic pressure strip 50 passing through the positioning seat 40, and a buckle 60 buckled on the elastic pressure strip 50 and the sleeve 70, wherein the buckle 60 presses the positioning seat 40 to fix the positioning seat 40 and the fan body 30 mounted on the positioning seat 40.

[0029] Each group of the heat sink groups 20 includes a plurality of heat sinks 21. The heat sinks 21 in the same group are distributed along an arc direction. The two groups of heat sink groups 20 are separated by a certain distance, thereby forming an avoidance space 22 between the two heat sink groups 20. The heat sink 21 includes a first functional segment 24, a second functional segment 25, a third functional segment 26 and a fourth functional segment 27 that are continuously bent and connected in sequence. The tail end of the first functional segment 24 is formed on the positioning segment. The two groups of heat sink groups 20 together enclose a receiving space 23.

[0030] The positioning seat 40 has a slot 41 extending along its axial direction. The positioning seat 40 has a plurality of positioning protrusions 42 protruding from the bottom of the slot 41. In this embodiment, the positioning protrusions 42 have a triangular cross-section. The fan body 30 has a connecting arm 31, which is mounted on the positioning seat 40 by integral molding or screws.

[0031] The ferrule 70 includes a main body 71 and two limiting parts 72 connected to the main body 71. The main body 71 is arranged in a hollow ring shape. The limiting parts 72 are connected to the outer peripheral surface of the main body 71. The two limiting parts 72 are arranged opposite to each other, and a first limiting groove 721 is provided at the bottom of the limiting part 72.

[0032] The buckle 60 is an annular structure made of a bendable plastic or silicone material. The elastic pressure strip 50 includes several main sections 51, a locking section 52 connecting two adjacent main sections 51, two mating sections 53 connected to the ends of the two main sections 51, and two locking heads 54 connected to the tail ends of the two mating sections 53. The main sections 51 are flat, the locking sections 52 are bent in a V-shape, and the back of the locking sections 52 forms a locking groove 521. The mating sections 53 are upwardly tilted, and when pressed downward, they deform elastically. In addition, the mating sections 53 are provided with a functional groove 531, which extends in the same direction as the mating sections 53. The provision of the functional groove 531 on the locking sections 52 further enhances the deformation capability of the locking sections 52. The locking head 54 is provided with a second limiting groove 541 extending downward. The second limiting groove 541 penetrates the locking head 54 along the front-to-back direction.

[0033] During assembly, the main body 71 of the ferrule 70 is sleeved on the outside of the second functional section 25 of the two groups of heat sink assemblies 20, the third functional section 26 limits the ferrule 70, the limiting sections 72 on both sides of the ferrule 70 are aligned with the avoidance space 22, the fan body 30 is fixed on the positioning seat 40, and then the positioning seat 40 with the fan body 30 installed is placed in the receiving space 23, the elastic pressure strip 50 passes through the card slot 41 of the positioning seat 40, the card slot 521 of the elastic pressure strip 50 is locked in the positioning protrusion 42, and the card head 54 of the elastic pressure strip 50 extends from the avoidance space 22. Pressing the card head 54 causes the matching section 53 to elastically deform, and the buckle 60 is buckled in the second limiting groove 541 of the card head 54 and the first limiting groove 721 of the limiting section 72, and the main section 51 of the elastic pressure strip 50 presses the positioning seat 40.

[0034] The beneficial effect of the slot-free cooling fan of the present invention is that: on the basis of the base 10, the heat sink group 20, and the fan body 30, a sleeve 70, a positioning seat 40, an elastic pressure strip 50, and a retaining ring 60 are further provided, the fan body 30 is mounted on the positioning seat 40, the elastic pressure strip 50 is passed through the positioning seat 40, the retaining ring 60 is buckled on the elastic pressure strip 50 and the positioning head 54 on the sleeve 70 on the same side and the main body 71 of the sleeve 70, and the matching section 53 is elastically deformed, thereby fixing the positioning seat 40 and the fan body 30 mounted on the positioning seat 40. The utility model does not require additional slots on the heat sink group 20 to achieve the fixing of the fan body 30, effectively saving the cost and processing efficiency of the product, and the overall disassembly and assembly are convenient and practical.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A slot-free cooling fan, characterized in that: The heat dissipation device is a heat dissipation device, and a heat dissipation device is installed in the heat dissipation device, and a heat dissipation device is installed in the heat dissipation device. The heat dissipation device is installed in the heat dissipation device, and a heat dissipation device is installed in the heat dissipation device.

2. The slot-free cooling fan according to claim 1, characterized in that: The heat sink group includes several heat sinks, and the heat sinks in the same group are distributed along an arc direction. Two groups of heat sinks are separated by a certain distance, thereby forming an avoidance space between the two heat sink groups, and the positioning head of the elastic pressure strip extends from the avoidance space.

3. The slot-free cooling fan according to claim 2, characterized in that: The positioning seat is provided with a slot extending along its axial direction, and the elastic pressure strip passes through the slot of the positioning seat.

4. The slot-free cooling fan according to claim 3, characterized in that: The positioning seat is provided with a plurality of positioning protrusions at the bottom of the slot, and a positioning groove is formed on the back of the positioning section. The positioning groove of the elastic pressure strip is clamped in the positioning protrusions.

5. The slot-free cooling fan according to claim 4, characterized in that: The locking section is bent in a V shape, and the cross section of the positioning protrusion is triangular.

6. The slot-free cooling fan according to claim 1, characterized in that: The heat sink includes a first functional segment, a second functional segment, a third functional segment and a fourth functional segment that are continuously bent and connected in sequence. The tail end of the first functional segment is formed on the positioning segment. The two groups of heat sinks are combined to form a receiving space. The main body of the sleeve is sleeved on the outside of the second functional segment of the two groups of heat sinks. The third functional segment limits the sleeve, and the positioning seat is placed in the receiving space.

7. The slot-free cooling fan according to claim 1, wherein: The matching section is further provided with a functional groove, and the extending direction of the functional groove is consistent with the extending direction of the matching section.

8. The slot-free cooling fan according to claim 1, wherein: The main body is arranged in a hollow ring shape, the limiting portion is connected to the outer peripheral surface of the main body, and the two limiting portions are arranged opposite to each other.

9. The slot-free cooling fan according to claim 1, wherein: The fan body is provided with a connecting arm, which is installed on the positioning seat.

10. The slot-free cooling fan according to claim 1, wherein: The second limiting groove passes through the locking head along the front-to-back direction.

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