CN205753945U - The heat-dissipating casing of the air-cooled changer of 1KW - Google Patents

Abstract

The utility model discloses a heat dissipation shell of a 1KW air-cooled converter, which comprises a shell and a back cover, the shell and the back cover are both made of metal material, and the back cover is used to carry the heat-generating device of the converter , the housing includes a top and sequentially connected end-to-end front, first side, rear and second side, the front, the first side, the rear and the second side The top part is connected between the top and the back cover, and the surface of the top away from the back cover is provided with a first heat dissipation part, a fan fixing frame and a second heat dissipation part arranged in sequence, and the first heat dissipation part The portion includes a plurality of first scales, the second heat dissipation portion includes a plurality of second scales, and the fan fixing frame is used to fix the fan. The heat dissipation shell of the 1KW air-cooled converter described in the utility model has high heat dissipation efficiency.

Description

Heat dissipation shell of 1KW air-cooled converter

technical field

The utility model relates to the technical field of converters, in particular to a heat dissipation shell of a 1KW air-cooled converter.

Background technique

As the application requirements for high-power converter equipment become more and more extensive, in order to meet the multi-functional market demand, more and more electronic components are integrated in the converter, and the external dimensions of the converter are also subject to increasingly strict requirements. Therefore, converters with small size and high power density are getting more and more attention.

However, heat dissipation is a big problem for small size, high power density converters. Since the design of the external structure of the converter will directly affect the life and reliability of the converter, the converter needs an external structure with good heat dissipation to meet the special requirements of thermal design.

Utility model content

The technical problem to be solved by the utility model is to provide a heat dissipation shell of a 1KW air-cooled converter, and the heat dissipation efficiency of the heat dissipation shell is high.

In order to achieve the above object, the utility model embodiment adopts the following technical solutions:

Provide a heat dissipation housing for a 1KW air-cooled converter, including a housing and a rear cover, both of which are made of metal, and the rear cover is used to carry the heat-generating components of the converter. The housing includes a top and sequentially connected end-to-end front, first side, rear and second side, the front, first side, rear and second side connected at Between the top and the rear cover, the surface of the top away from the rear cover is provided with a first heat dissipation part, a fan fixing frame and a second heat dissipation part arranged in sequence, and the first heat dissipation part includes multiple a first scale, the second heat sink includes a plurality of second scales, and the fan fixing frame is used to fix the fan.

Wherein, the plurality of first scales are arranged in pairs to form a plurality of first flow channels, and the plurality of second scales are arranged in pairs to form a plurality of second flow channels, and the plurality of first flow channels and The plurality of second flow channels are all in communication with the fan fixing frame.

Wherein, the plurality of first scales and the plurality of second scales are all wavy, the plurality of first scales are arranged in parallel in pairs, and the plurality of second scales are arranged in parallel in pairs, so that the plurality of Both the first flow channel and the plurality of second flow channels are wavy.

Wherein, the length of each of the first scales is greater than or equal to the length of each of the second scales, and the first heat dissipation part further includes a plurality of fixing columns, and the plurality of fixing columns are connected to the plurality of first scales respectively. One scale.

Wherein, the housing further includes a first mounting bracket and a second mounting bracket, the first mounting bracket includes a first left side wall, a first bottom wall and a second right side wall connected in sequence, and the first left side wall The side wall, the first bottom wall, and the second right side wall are all vertically connected to the first side, the first bottom wall is parallel to the rear cover, and the second mounting bracket includes sequentially connected The second left side wall, the second bottom wall and the second right side wall, the second left side wall, the second bottom wall and the second right side wall are vertically connected to the second side , the second bottom wall is parallel to the first bottom wall, and at least two fixing holes arranged at intervals are opened on the first bottom wall and the second bottom wall.

Wherein, the distance between the first bottom wall and the top is greater than the distance between the back cover and the top.

Wherein, the housing further includes a first reinforcing rib and a second reinforcing rib, and the first reinforcing rib is located at the connection between the first mounting bracket and the first side, so as to simultaneously connect the first mounting bracket The bracket and the first side, the second reinforcing rib is located at the connection between the second mounting bracket and the second side, so as to simultaneously connect the second mounting bracket and the second side.

Wherein, at least one auxiliary fixing hole is opened at a position where the first left side wall is facing the first reinforcing rib and a position where the second right side wall is facing the second reinforcing rib.

Wherein, at least one auxiliary fixing hole is opened on both sides of the rear part respectively connecting the first side part and the second side part.

Wherein, both the front part and the rear part are provided with at least two installation arms, and the rear cover is connected to the at least two installation arms by fasteners.

Compared with the prior art, the utility model has the following beneficial effects:

The heat dissipation shell of the 1KW air-cooled converter described in the utility model is made of metal material because the shell and the back cover are used to carry the heat-generating device of the converter, so the converter The heat can be transferred to the whole casing through the back cover, that is, the heat of the converter is dissipated through the back cover and the casing at the same time, the heat dissipation area is large, and the heat dissipation efficiency is high. At the same time, the top of the housing is also provided with the first heat dissipation portion and the second heat dissipation portion, the first heat dissipation portion includes a plurality of first scales, and the second heat dissipation portion includes a plurality of first scales. The second scale is used to increase the heat dissipation area of the heat dissipation shell in a large area and improve the heat dissipation efficiency. Furthermore, the top is also provided with the fan fixing frame for fixing the fan, so that the top surface has forced convection air, and the heat dissipation efficiency is high. The fan fixing frame is located between the first heat dissipation portion and the second heat dissipation portion, so that both the first heat dissipation portion and the second heat dissipation portion can rapidly dissipate heat by using forced convection air.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the utility model. Those of ordinary skill in the art can also obtain other drawings like these drawings without paying creative efforts.

Fig. 1 is a three-dimensional structural schematic diagram of a heat dissipation housing of a 1KW air-cooled converter provided by an embodiment of the present invention.

Fig. 2 is another three-dimensional structural schematic diagram of a heat dissipation housing of a 1KW air-cooled converter provided by an embodiment of the present invention.

Fig. 3 is a top structural schematic diagram of a heat dissipation housing of a 1KW air-cooled converter provided by an embodiment of the present invention.

Fig. 4 is a rear view structural schematic diagram of a heat dissipation housing of a 1KW air-cooled converter provided by an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In addition, the following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments that the present invention can be implemented in. The directional terms mentioned in the utility model, for example, "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc. Only refer to the directions of the attached drawings, therefore, the direction terms used are for better and more clearly explaining and understanding the present utility model, rather than indicating or implying that the devices or components referred to must have a specific orientation, with a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection", and "set on..." should be understood in a broad sense, for example, it can be It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more. If the term "process" appears in this specification, it not only refers to an independent process, but also includes in this term as long as it can realize the expected function of the process when it cannot be clearly distinguished from other processes. In addition, the numerical range represented by "-" in this specification means the range which includes the numerical value described before and after "-" as a minimum value and a maximum value, respectively. In the drawings, units with similar or identical structures are denoted by the same reference numerals.

Please refer to FIG. 1 to FIG. 3 together. The embodiment of the present invention provides a heat dissipation housing 100 for a 1KW air-cooled converter, including a housing 1 and a rear cover 2 . Both the housing 1 and the rear cover 2 are made of metal. The rear cover 2 is used to carry the heat-generating components of the converter (including power transistors, transformers and magnetic components with high heat generation). The housing 1 comprises a top 11 and a front part 12, a first side part 13, a rear part 14 and a second side part 15 which are sequentially connected end to end, the front part 12, the first side part 13, the rear part The portion 14 and the second side portion 15 are connected between the top 11 and the rear cover 2 . The surface of the top 11 facing away from the rear cover 2 is provided with a first heat dissipation portion 161 , a fan fixing frame 171 and a second heat dissipation portion 162 arranged in sequence, and the first heat dissipation portion 161 includes a plurality of first scales 163 , the second heat dissipation portion 162 includes a plurality of second scales 164 , and the fan fixing frame 171 is used for fixing the fan 172 .

In this embodiment, since the casing 1 and the back cover 2 are made of metal, and the back cover 2 is used to carry the heat-generating components of the converter, the heat of the converter can pass through the The back cover 2 is transmitted to the entire casing 1, that is, the heat of the converter is dissipated through the back cover 2 and the casing 1 at the same time, so that the heat dissipation area is large and the heat dissipation efficiency is high. At the same time, the top 11 of the housing 1 is also provided with the first heat dissipation part 161 and the second heat dissipation part 162, the first heat dissipation part 161 includes a plurality of first scales 163, the second The heat dissipation portion 162 includes a plurality of second scales 164 for increasing the heat dissipation area of the heat dissipation housing 100 to improve heat dissipation efficiency. Furthermore, the top 11 is also provided with the fan fixing frame 171 for fixing the fan 172, so that the surface of the top 11 has forced convection air, and the heat dissipation efficiency is high. The fan fixing frame 171 is located between the first heat dissipation portion 161 and the second heat dissipation portion 162 , so that both the first heat dissipation portion 161 and the second heat dissipation portion 162 can quickly dissipate heat by using forced convection air.

Preferably, the metal material is aluminum, which has high thermal conductivity and low density.

It should be understood that the casing 1 described in this embodiment is made by an integral molding process.

Further, please refer to Fig. 2 and Fig. 3 together, as an optional embodiment, the plurality of first scales 163 are arranged in pairs at intervals to form a plurality of first flow channels 165, and the plurality of second scales 164 are arranged in pairs at intervals to form a plurality of second flow passages 166, and the plurality of first flow passages 165 and the plurality of second flow passages 166 are all in communication with the fan holder 171, so that the forced convection air can By contacting each of the first scales 163 and each of the second scales 164, the heat dissipation efficiency is high.

Preferably, please refer to Fig. 2 and Fig. 3 together, as an optional embodiment, the plurality of first scales 163 and the plurality of second scales 164 are both wave-shaped, and the plurality of first scales The scales 163 are arranged approximately in parallel in pairs, and the plurality of second scales 164 are arranged approximately in parallel in pairs, so that the plurality of first flow channels 165 and the plurality of second flow channels 166 are also wave-shaped, and the forced convection air is The plurality of first flow channels 165 and the plurality of second flow channels 166 maintain a certain flow at a constant speed. In particular, when the fan 172 is set right against the heat generating device with the highest heat of the converter, the heat of the heat generating device can be efficiently carried out through the forced convection air generated by the fan 172, and the heat dissipation efficiency is high.

Further, please refer to Fig. 2 and Fig. 3 together, as an optional embodiment, the fan 172 forms a gap with the top 11, and a plurality of short scales 168 are arranged in the gap, and the plurality of short scales The height of the scales 168 is lower than the plurality of first scales 163 and the plurality of second scales 164 . The plurality of short scales 168 are connected to the plurality of first scales 163 and the plurality of second scales 164 on both sides thereof in one-to-one correspondence, so that at least part of the plurality of first flow channels 165 and the plurality of The second flow passages 166 communicate with each other, and the conduction passage passes through the gap between the fan 172 and the top 11, so that the plurality of first flow passages 165 and the plurality of second flow passages The flow of the air in 166 is smoother, and can flow directly from below the fan 172 to above the fan 172 .

Further, please refer to FIGS. 1 to 3 together. As an optional embodiment, the length of each of the first scales 163 is greater than or equal to the length of each of the second scales 164 . Therefore, the heat dissipation performances of the first heat dissipation portion 161 and the second heat dissipation portion 162 are inconsistent, and the first heat dissipation portion 161 can be adjusted according to the position of the components of the converter inside the housing 1 . The position and structure of the second heat dissipation portion 162 make the heat dissipation performance of the heat dissipation housing 100 better. Optimally, the space in the heat dissipation housing 100 facing the fan 172 is used for placing the heat generating device with the highest heat.

Further, please refer to FIG. 2 and FIG. 3 together. As an optional embodiment, the first heat dissipation part 161 further includes a plurality of fixing columns 167, and the plurality of fixing columns 167 are respectively connected to the plurality of second A scale 163, the plurality of fixing columns 167 can strengthen the strength of the plurality of first scales 163, and also increase the heat dissipation area. Preferably, each of the first scales 163 is connected with at least one fixing post 167 .

Preferably, the top 11 is provided with a through hole 111, the through hole 111 is used to allow the input power wire of the fan 172 to pass through, so that the components of the converter inside the housing 1 can be used as the fan 172 powered by.

Further, please refer to FIGS. 1 to 4 together. As an optional embodiment, the housing 1 further includes a first mounting bracket 181 and a second mounting bracket 182. The first mounting bracket 181 includes sequentially connected The first left side wall 1811, the first bottom wall 1812 and the first right side wall 1813, the first left side wall 1811, the first bottom wall 1812 and the first right side wall 1813 are vertically connected to The first side portion 13 and the first bottom wall 1812 are parallel to the rear cover 2 . The second mounting bracket 182 includes a second left side wall 1821, a second bottom wall 1822 and a second right side wall 1823 connected in sequence, the second left side wall 1821, the second bottom wall 1822 and the The second right side wall 1823 is vertically connected to the second side portion 15, the second bottom wall 1822 is parallel to the first bottom wall 1812, the first bottom wall 1812 and the second bottom wall 1822 There are at least two fixing holes 183 arranged at intervals.

In this embodiment, the fixing holes 183 are used to fix the heat dissipation housing 100 and the powered equipment together, so as to realize the mutual fixing of the converter using the heat dissipation housing 100 and the powered equipment. Meanwhile, the plane formed by the first bottom wall 1812 and the second bottom wall 1822 is the installation plane of the heat dissipation housing 100 .

In addition, the first mounting bracket 181 and the second mounting bracket 182 in this embodiment are formed in the integral molding process of the housing 1 , which not only reduces the processing steps, but also saves a separate fixing structure. The vertical connection means that the two connected to each other are perpendicular to each other.

Preferably, the fixing hole 183 may be a slot-shaped hole, so that the installation position of the heat dissipation housing 100 can be slightly adjusted during installation, so the heat dissipation housing 100 has a wider application range. Certainly, the fixing hole 183 may also be an oval hole or a round hole.

Further, please refer to FIG. 1 to FIG. 4 together. As an optional embodiment, the distance between the first bottom wall 1812 and the top 11 is greater than the distance between the rear cover 2 and the top 11 . In other words, the rear cover 2 is recessed toward the top 11 relative to the first bottom wall 1812 (that is, the installation plane of the heat dissipation housing 100 ), so when the rear cover 2 is fixed by fasteners When reaching the housing 1 , the fasteners will not protrude from the installation plane, that is, the problems of uneven installation plane and unreliable installation of the heat dissipation housing 100 can be avoided.

Further, as an optional embodiment, please refer to Fig. 1 to Fig. 3 together, the housing 1 further includes a first reinforcing rib 191 and a second reinforcing rib 192, the first reinforcing rib 191 is located on the The connection between the first mounting bracket 181 and the first side portion 13 is used to simultaneously connect the first mounting bracket 181 and the first side portion 13, and the second reinforcing rib 192 is located at the second mounting bracket 182 and the second side portion 15 to connect the second mounting bracket 182 and the second side portion 15 at the same time.

In this embodiment, the first reinforcing rib 191 can strengthen the strength of the first mounting bracket 181 and the first side portion 13 , and the second reinforcing rib 192 can strengthen the strength of the second mounting bracket 182 and the first side portion 13 . The strength of the second side portion 15 , that is, the first reinforcing rib 191 and the second reinforcing rib 192 are both used to strengthen the strength of the casing 1 .

Preferably, at least two fastening holes (not shown in the figure) are provided on the surface of the first reinforcing rib 191 and the second reinforcing rib 192 facing the rear cover 2, and the fastening holes can be fastened by fasteners. The back cover 2 is fixed to the fastening hole, that is, the back cover 2 is fixed to the casing 1 . In particular, the peripheral wall thickness of the position where the fastening hole is located can be thickened so that the fastening hole has a more reliable supporting force.

Further, please refer to FIG. 1 to FIG. 4 together. As an optional embodiment, the position where the first left side wall 1811 is facing the first reinforcing rib 191 and the second right side wall 1823 At least one auxiliary fixing hole 184 perpendicular to the rear portion 14 is opened at a position facing the second reinforcing rib 192 . Preferably, at least one auxiliary fixing hole 184 is opened on both sides of the rear part 14 respectively connecting the first side part 13 and the second side part 15 .

In this embodiment, the auxiliary fixing hole 184 is used to assist the fixing hole 183 to fix the heat dissipation housing 100 to the powered device. It should be understood that the auxiliary fixing holes 184 do not necessarily participate in the fixing of the heat dissipation housing 100 , that is, the auxiliary fixing holes 184 can be idle or work.

At the same time, since the position where the first left side wall 1811 is facing the first reinforcing rib 191 and the position where the second right side wall 1823 is facing the second reinforcing rib 192 have relatively strong strength , the auxiliary fixing holes 184 at these two locations all have stronger supporting force and fastening force.

Further, please refer to FIG. 1 and FIG. 2 together. As an optional embodiment, both the front part 12 and the rear part 14 are provided with at least two installation arms 121, and the rear cover 2 is fastened A piece is connected to the at least two mounting arms 121 so that the rear cover 2 is fixed to the casing 1 . For example, fastening holes may be provided on the mounting arm 121 .

Optionally, an indicator light 122 is provided in the middle of the front part 12 or the rear part 14 to indicate the working state of the product.

Further, please refer to FIG. 1 to FIG. 3 together. As an optional embodiment, the first side portion 13 is provided with two terminal holes (not shown in the figure) for respectively installing the output terminal 131 and the Signal control terminal 132 . The second side portion 15 defines a terminal hole (not shown in the figure) for installing the input terminal 151 .

The above embodiments of the utility model have been introduced in detail. In this paper, specific examples have been used to illustrate the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea; At the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the utility model.

Claims (10)

1. the heat-dissipating casing of the air-cooled changer of 1KW, it is characterised in that include housing and bonnet, described housing and described after Lid all uses metal material to make, and described bonnet is for carrying the heater members of changer, and described housing includes top and successively End to end front portion, the first sidepiece, rear portion and the second sidepiece, described front portion, described first sidepiece, described rear portion and institute Stating the second sidepiece to be connected between described top and described bonnet, described top deviates from and is provided with successively on the surface of described bonnet First radiating part, fan Fixture and second radiating part of arrangement, described first radiating part includes multiple first scale, described Second radiating part includes multiple second scale, and described fan Fixture is used for fan attachment.

2. heat-dissipating casing as claimed in claim 1, it is characterised in that the plurality of first scale is spaced, two-by-two with shape Become multiple first-class passage, the plurality of second scale to be spaced two-by-two, form multiple second passage, the plurality of first Circulation road and the plurality of second passage all turn on described fan Fixture.

3. heat-dissipating casing as claimed in claim 2, it is characterised in that the plurality of first scale and the plurality of second scale All undulates, the plurality of first scale is the most arranged in parallel, and the plurality of second scale is the most arranged in parallel so that described Multiple first-class passages and the plurality of second passage are waveform.

4. heat-dissipating casing as claimed in claim 1, it is characterised in that the length of each described first scale is all higher than equal to every The length of individual described second scale, described first radiating part also includes that multiple fixing post, the plurality of fixing post connect institute respectively State multiple first scale.

5. heat-dissipating casing as claimed in claim 1, it is characterised in that described housing also includes the first mounting bracket and the second peace Dress support, described first mounting bracket includes the first left side wall, the first diapire and the second right side wall being sequentially connected with, described the One left side wall, described first diapire and described second right side wall are the most vertically connected to described first sidepiece, described first diapire It is parallel to described bonnet, on the right side of the second left side wall that described second mounting bracket includes being sequentially connected with, the second diapire and second Wall, described second left side wall, described second diapire and described second right side wall are the most vertically connected to described second sidepiece, described Second diapire is parallel on described first diapire, described first diapire and described second diapire all offer at least two interval and sets The fixing hole put.

6. heat-dissipating casing as claimed in claim 5, it is characterised in that described first diapire is more than institute with the spacing at described top State the spacing of bonnet and described top.

7. the heat-dissipating casing as described in claim 5 or 6, it is characterised in that described housing also includes the first ribs and second Ribs, described first ribs is positioned at the junction of described first mounting bracket and described first sidepiece, to be simultaneously connected with Stating the first mounting bracket and described first sidepiece, described second ribs is positioned at described second mounting bracket and described second sidepiece Junction, to be simultaneously connected with described second mounting bracket and described second sidepiece.

8. heat-dissipating casing as claimed in claim 7, it is characterised in that described first left side wall is just to described first ribs Position and described second right side wall just position to described second ribs all offers at least one auxiliary fixing hole.

9. the heat-dissipating casing as described in claim 1 or 8, it is characterised in that described first sidepiece of connection respectively at described rear portion Fixing hole is assisted with all offering at least one on the both sides of described second sidepiece.

10. heat-dissipating casing as claimed in claim 1, it is characterised in that described anterior and described rear portion is provided with at least two Individual installation arm, described bonnet is connected to described at least two by securing member and installs arm.