Aluminum alloy shell with radiating fin structure

Abstract

The aluminum alloy shell with the cooling fin structure comprises a shell body made of aluminum alloy and the cooling fin structure, the cooling fin structure comprises a plurality of cooling units, each cooling unit comprises an arc-shaped sheet body and a plurality of cooling fins, the outer side of each arc-shaped sheet body is an outer cambered surface, and the inner side of each arc-shaped sheet body is an inner cambered surface; the heat dissipation fins are connected to the outer arc face in an integrally-formed mode. A plurality of arc-shaped grooves distributed in the circumferential direction of the shell body are formed in the outer circumferential surface of the shell body; the arc-shaped sheet body of one heat dissipation unit is correspondingly contained and installed in each arc-shaped groove, arc-shaped positioning grooves are formed in the two ends, in the radian direction, of each arc-shaped groove, and the two ends, in the radian direction, of each arc-shaped sheet body are located and matched into the two arc-shaped positioning grooves respectively. According to the utility model, the plurality of radiating fins are integrated on the arc-shaped fin body, so that not only is the installation process of the radiating fins simplified, but also the efficiency of disassembly, assembly and maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to an aluminum alloy shell with a heat sink structure. Background Art

[0002] When the motor runs at high speed, it will generate a large amount of heat, and this heat needs to be dissipated in time. Otherwise, it is easy to cause the inside of the motor to burn out due to excessive temperature, affecting people's normal use. Aluminum profiles have good corrosion resistance and heat conductivity, so people usually use aluminum profiles to manufacture the motor housing.

[0003] Referring to the technical solution of patent number 201821230014.2, it includes a housing main body made of aluminum profile and a plurality of heat dissipation fins. The heat dissipation fins include a clamping part and a heat dissipation part. A plurality of clamping grooves are formed on the outer surface of the housing main body, and the clamping part of each heat dissipation fin is installed in each clamping groove. The clamping part of the heat dissipation fin is fixed to the clamping groove by interference fit, and the heat dissipation part extends out of the clamping groove. The housing main body made of aluminum profile in this technical solution has good heat conductivity and corrosion resistance. Clamping grooves are formed on the outer surface of the housing main body, and the heat dissipation fins are fixed to the clamping grooves by interference fit; when there is a lot of dust attached to the surface of the heat dissipation fins or the housing main body, the heat dissipation fins can be taken out of the clamping grooves for cleaning to improve the heat dissipation performance of the motor housing.

[0004] However, in this technical solution, the heat dissipation fins are all independently installed. This design of independently installed heat dissipation fins makes it necessary to disassemble the heat dissipation fins one by one during the cleaning process, which is cumbersome and time-consuming, increasing the maintenance cost. In addition, due to the independent installation of a plurality of clamping grooves for the heat dissipation fins, the size of the clamping grooves also becomes smaller. When dust accumulates inside the clamping grooves, it is difficult to clean thoroughly, which limits the improvement of the heat dissipation performance to a certain extent. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an aluminum alloy shell with a heat sink structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An aluminum alloy shell with a heat sink structure, including a housing body made of aluminum alloy and a heat sink structure arranged on the housing body, characterized in that:

[0008] The heat sink structure includes a plurality of heat dissipation units, and each heat dissipation unit includes an arc-shaped sheet body and a plurality of heat dissipation fins. The outer side of the arc-shaped sheet body is an outer arc surface, and the inner side is an inner arc surface; the heat dissipation fins are integrally formed and connected to the outer arc surface, and a plurality of the heat dissipation fins are distributed at intervals along the radian of the arc-shaped sheet body;

[0009] A plurality of arc-shaped grooves distributed along the circumferential direction of the outer shell body are provided on the outer peripheral surface of the outer shell body, and the groove bottom surface of the arc-shaped groove is a heat-conducting surface;

[0010] An arc-shaped sheet body of each heat dissipation unit is correspondingly accommodated and installed in each arc-shaped groove. Arc-shaped positioning grooves are provided at both ends of the arc-shaped groove in the radian direction. The two ends of the arc-shaped sheet body in the radian direction are respectively positioned and fitted into the two arc-shaped positioning grooves. At least two fixing bolts capable of fixing the arc-shaped sheet body and making the inner arc surface fit the heat-conducting surface are provided on the outer shell body.

[0011] In the present utility model, at least two fixing screw holes arranged along the axial direction of the outer shell body are provided in the middle of the heat-conducting surface; at least two fixing through holes are provided in the middle of the arc-shaped sheet body, each fixing through hole corresponds to a fixing screw hole, and a fixing bolt is inserted into each fixing through hole. The screw end of the fixing bolt passes through the fixing through hole and is threadedly connected to the fixing screw hole.

[0012] In the present utility model, the arc-shaped positioning groove is less than three-quarters of a semicircle and greater than one-half of a semicircle. Both ends of the arc-shaped sheet body in the radian direction are semi-circular semi-convex parts, and the radius of the semi-convex part is equal to or substantially equal to the radius of the arc-shaped positioning groove.

[0013] In the present utility model, the arc-shaped groove axially penetrates through the front and rear ends of the outer shell body along the axial direction of the outer shell body. A front cover and a rear cover are respectively installed at the front and rear ends of the outer shell body, and the front and rear ends of the arc-shaped groove are respectively closed by the front cover and the rear cover.

[0014] In the present utility model, there are four arc-shaped grooves, which respectively correspond to the bottom end, the top end, the left end and the right end of the outer shell body, and each arc-shaped groove occupies at least one-fifth of the area of the outer peripheral surface of the outer shell body.

[0015] In the present utility model, support seats are integrally formed on the left and right sides of the lower part of the outer shell body, and the support seats are used for installing the motor on the equipment.

[0016] In the present utility model, the main view cross-sectional shape of the heat dissipation fins is an isosceles trapezoid, and the width of the heat dissipation fins gradually decreases outward along the radial direction of the arc-shaped sheet body.

[0017] In the present utility model, a heat dissipation cavity penetrating from front to back is provided in the middle of the heat dissipation fins, and the main view cross-sectional shape of the heat dissipation cavity is an isosceles trapezoid.

[0018] In the present utility model, a plurality of heat dissipation grooves extending from front to back are provided on both opposite sides of the heat dissipation fins.

[0019] In the present utility model, the housing body is made of a first aluminum profile, and / or the heat dissipation unit is made of a second aluminum profile.

[0020] Advantages of the present utility model: The heat sink structure of the present utility model includes a plurality of heat dissipation units. Each heat dissipation unit includes an arc-shaped sheet body and a plurality of heat dissipation fins integrally connected to the outer arc surface of the arc-shaped sheet body. Among them, the inner arc surface of the arc-shaped sheet body can be attached to the heat conduction surface of the arc-shaped groove, increasing the contact area and improving the heat conduction efficiency. At the same time, since a plurality of heat dissipation fins are integrated on the arc-shaped sheet body, when the arc-shaped sheet body is installed in the arc-shaped groove, the installation of a plurality of heat dissipation fins can be completed simultaneously, simplifying the installation process. When dust adheres to the surface of the heat dissipation fins, the user does not need to disassemble the heat dissipation fins one by one, but can remove the entire heat dissipation unit for cleaning, thus greatly simplifying the cleaning process and improving the maintenance efficiency. In addition, due to the design of the heat dissipation unit, the number of arc-shaped grooves is reduced and the size is increased, effectively avoiding the problem of dust accumulation inside the arc-shaped grooves and further improving the heat dissipation performance. Description of the Drawings

[0021] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0022] Figure 1 Isometric view of an aluminum alloy housing used as a motor component Figure 1 ;

[0023] Figure 2 Is a combined schematic diagram of the housing body and the rear cover;

[0024] Figure 3 Is the front view of the heat dissipation unit;

[0025] Figure 4 Is the front view of the housing body;

[0026] Figure 5 Is a combined schematic diagram of the housing body and the heat dissipation unit;

[0027] Figure 6 For Figure 5 Enlarged view of A in Specific Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0029] It should be noted that if there are directional indications involved in the embodiments of the present utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present utility model, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Refer to Figures 1 - 6 , an aluminum alloy housing with a heat sink structure, comprising a housing body 1 made of aluminum alloy and a heat sink structure provided on the housing body 1. The heat sink structure includes a plurality of heat dissipation units 2, and each heat dissipation unit 2 includes an arc-shaped sheet body 21 and a plurality of heat dissipation fins 22. The outer side of the arc-shaped sheet body 21 is an outer arc surface 211, and the inner side is an inner arc surface 212; the heat dissipation fins 22 are integrally formed and connected to the outer arc surface 211, and the plurality of heat dissipation fins 22 are distributed at intervals along the arc of the arc-shaped sheet body 21; a plurality of arc-shaped grooves 11 distributed along the circumferential direction of the housing body 1 are provided on the outer peripheral surface of the housing body 1. The arc-shaped grooves 11 penetrate through the front and rear ends of the housing body 1 along the axial direction of the housing body 1, and the groove bottom surface of the arc-shaped grooves 11 is a heat conduction surface 111; an arc-shaped sheet body 21 of each heat dissipation unit 2 is correspondingly received and installed in each arc-shaped groove 11. Arc-shaped positioning grooves 112 are provided at both ends of the arc-shaped grooves 11 in the arc direction, and both ends of the arc-shaped sheet body 21 in the arc direction are respectively positioned and fitted into the two arc-shaped positioning grooves 112. At least two fixing bolts capable of fixing the arc-shaped sheet body 21 and making the inner arc surface 212 fit the heat conduction surface 111 are provided on the housing body 1, and the fixing bolts are distributed at intervals from front to back.

[0032] In this embodiment, there are four arc-shaped grooves 11, which respectively correspond to the bottom end, top end, left end, and right end of the housing body 1. Each arc-shaped groove 11 occupies at least one-fifth of the area of the outer peripheral surface of the housing body 1, so that the number of arc-shaped grooves 11 is reduced and the size is increased, effectively avoiding the problem of dust accumulation inside the arc-shaped grooves 11 and further improving the heat dissipation performance.

[0033] The heat sink structure of the present utility model includes a plurality of heat dissipation units 2. Each heat dissipation unit 2 includes an arc-shaped sheet body 21 and a plurality of heat dissipation fins 22 integrally connected to the outer arc surface 211 of the arc-shaped sheet body 21. Among them, the inner arc surface 212 of the arc-shaped sheet body 21 can be attached to the heat conduction surface 111 of the arc-shaped groove 11, increasing the contact area and improving the heat conduction efficiency. At the same time, since a plurality of heat dissipation fins 22 are integrated on the arc-shaped sheet body 21, when the arc-shaped sheet body 21 is installed in the arc-shaped groove 11, the installation of a plurality of heat dissipation fins 22 can be completed simultaneously, simplifying the installation process; and when dust adheres to the surface of the heat dissipation fins 22, the user does not need to disassemble the heat dissipation fins 22 one by one, but can remove the heat dissipation unit 2 as a whole for cleaning, thus greatly simplifying the cleaning process and improving the maintenance efficiency. In addition, due to the design of the heat dissipation unit 2, the number of arc-shaped grooves 11 is reduced and the size is increased, effectively avoiding the problem of dust accumulation inside the arc-shaped grooves 11 and further improving the heat dissipation performance.

[0034] As a preferred embodiment, at least two fixing screw holes arranged along the axis of the housing body 1 are provided in the middle of the heat conduction surface 111; at least two fixing through holes 213 are provided in the middle of the arc-shaped sheet body 21. Each fixing through hole 213 corresponds to a fixing screw hole, and a fixing bolt is inserted through each fixing through hole 213. The screw end of the fixing bolt passes through the fixing through hole 213 and is threadedly connected to the fixing screw hole. Thus, after tightening the fixing bolt, the heat dissipation unit 2 is completely locked on the housing body 1.

[0035] As a preferred embodiment, the arc-shaped positioning groove 112 is less than three-quarters of a semicircle and greater than one-half of a semicircle. Both ends of the arc-shaped sheet body 21 in the radian direction are semi-circular semi-circular convex portions 210, and the radius of the semi-circular convex portion 210 is equal to or substantially equal to the radius of the arc-shaped positioning groove 112. Through the above structure, the arc-shaped positioning groove 112 can provide a certain locking force to hold the ends of the arc-shaped sheet body 21, but does not affect the arc-shaped sheet body 21 being pried out of the arc-shaped groove 11 by a tool. In this way, both ends of the arc-shaped sheet body 21 in the radian direction can be positioned by two arc-shaped positioning grooves 112, and then completely fixed in the arc-shaped groove 11 under the action of the fixing bolt.

[0036] As a preferred embodiment, a front cover 3 and a rear cover 4 are respectively installed at the front and rear ends of the housing body 1, and the front and rear ends of the arc-shaped groove 11 are respectively closed by the front cover 3 and the rear cover 4. The distance between the front and rear ends of the arc-shaped sheet body 21 is 1-5 mm smaller than the distance between the front and rear ends of the arc-shaped groove 11. Thus, after the fixing bolt is loosened or removed, the arc-shaped sheet body 21 can move back and forth in the arc-shaped groove 11 by about 1-5 mm, facilitating the staff to pry the arc-shaped sheet body 21 out of the arc-shaped groove 11 with a tool.

[0037] As a preferred embodiment, support seats 12 are integrally formed on the lower left and right sides of the outer shell body 1, and the support seats 12 are used for mounting the motor on the device.

[0038] As a preferred embodiment, connecting convex parts 13 are integrally formed on the left and right sides of the upper part of the outer shell body 1. Connecting through holes 14 are provided through the connecting convex parts 13 and the support seats 12 from front to back, and cover connection bolts for connecting the front cover 3 and the rear cover 4 are inserted through the connecting through holes 14.

[0039] As a preferred embodiment, the main view cross-sectional shape of the heat dissipation fins 22 is an isosceles trapezoid, and the width of the heat dissipation fins 22 gradually decreases radially outward along the arc-shaped sheet body 21, so that the connection stability between the heat dissipation fins 22 and the arc-shaped sheet body 21 is better.

[0040] As a preferred embodiment, in order to increase the heat exchange area between the heat dissipation fins 22 and the external space, a heat dissipation cavity 221 is provided through the heat dissipation fins 22 from front to back, and the main view cross-sectional shape of the heat dissipation cavity 221 is also an isosceles trapezoid.

[0041] As a preferred embodiment, a plurality of heat dissipation grooves 222 extending from front to back are provided on opposite sides of the heat dissipation fins 22, and the heat dissipation grooves 222 are used to further increase the heat exchange area between the heat dissipation fins 22 and the external space, thereby further improving the heat dissipation efficiency.

[0042] As a preferred embodiment, the outer shell body 1 is made of a first aluminum profile, and the heat dissipation unit 2 is made of a second aluminum profile, which is light in weight, good in strength, and good in heat dissipation effect.

[0043] The above are only the preferred embodiments of the present invention, and all technical solutions that achieve the purpose of the present invention by basically the same means fall within the protection scope of the present invention.

Claims

1. An aluminum alloy housing with a heat sink structure, comprising a housing body (1) made of an aluminum alloy and a heat sink structure provided on the housing body (1), characterized in that: The heat sink structure comprises a plurality of heat sink units (2), each heat sink unit (2) comprises an arc-shaped sheet body (21) and a plurality of heat sink fins (22), the outer side of the arc-shaped sheet body (21) is an outer arc surface (211), and the inner side is an inner arc surface (212); the heat sink fins (22) are integrally formed and connected to the outer arc surface (211), and the plurality of heat sink fins (22) are distributed at intervals along the arc of the arc-shaped sheet body (21); The outer peripheral surface of the shell body (1) is provided with a plurality of arc-shaped grooves (11) distributed along the circumference of the shell body (1), and the bottom surfaces of the arc-shaped grooves (11) are heat-conducting surfaces (111); Each arc-shaped groove (11) accommodates a corresponding arc-shaped sheet (21) for installing the heat dissipation unit (2); arc-shaped grooves (11) are provided with arc positioning grooves (112) at both ends in the arc direction; the arc-shaped sheet (21) is positioned and matched in the two arc positioning grooves (112) at both ends in the arc direction; and the shell body (1) is provided with at least two fixing bolts capable of fixing the arc-shaped sheet (21) and making the inner arc surface (212) fit the heat conducting surface (111).

2. The aluminum alloy housing with a heat sink structure according to claim 1, characterized in that: At least two fixing screw holes are arranged axially along the shell body (1) at the middle of the heat conducting surface (111); at least two fixing through holes (213) are provided at the middle of the arc-shaped sheet body (21), each fixing through hole (213) corresponds to a fixing screw hole, and each fixing through hole (213) is penetrated by a fixing bolt, and the screw end of the fixing bolt passes through the fixing through hole (213) and is threadedly connected to the fixing screw hole.

3. The aluminum alloy housing with a heat sink structure according to claim 1, characterized in that: The arc positioning groove (112) is smaller than three-quarters of a semicircle and larger than half a semicircle, and both ends of the arc-shaped sheet (21) in the arc direction are semicircular convex portions (210), and the radius of the semicircular convex portion (210) is equal to or substantially equal to the radius of the arc positioning groove (112).

4. The aluminum alloy housing with a heat sink structure according to claim 1, characterized in that: The arc-shaped groove (11) penetrates the front and rear ends of the shell body (1) along the axial direction of the shell body (1); the front and rear ends of the shell body (1) are respectively installed with a front cover (3) and a rear cover (4); and the front and rear ends of the arc-shaped groove (11) are respectively closed by the front cover (3) and the rear cover (4).

5. The aluminum alloy housing with a heat sink structure according to claim 1, characterized in that: There are four arc-shaped grooves (11) corresponding to the bottom end, the top end, the left end and the right end of the shell body (1), respectively; each arc-shaped groove (11) occupies at least one fifth of the area of ​​the outer peripheral surface of the shell body (1).

6. The aluminum alloy housing with a heat sink structure according to claim 1, characterized in that: Support seats (12) are integrally formed on both left and right sides of the lower part of the housing body (1), and the support seats (12) are used for mounting the motor on the equipment.

7. The aluminum alloy housing with a heat sink structure according to claim 1, characterized in that: The main cross-sectional shape of the heat dissipation fin (22) is an isosceles trapezoid, and the width of the heat dissipation fin (22) gradually decreases outward along the radial direction of the arc-shaped sheet body (21).

8. The aluminum alloy housing with a heat sink structure according to claim 7, characterized in that: A heat dissipation cavity (221) is provided in the middle of the heat dissipation fin (22) and is arranged to penetrate from front to back, and the main cross-sectional shape of the heat dissipation cavity (221) is an isosceles trapezoid.

9. The aluminum alloy housing with a heat sink structure according to claim 7, characterized in that: The heat dissipation fins (22) are provided on opposite sides with a plurality of heat dissipation grooves (222) extending from front to back.

10. The aluminum alloy housing with a heat sink structure according to any one of claims 1 to 9, characterized in that: The shell body (1) is made of a first aluminum profile, and / or the heat dissipation unit (2) is made of a second aluminum profile.

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