A DC converter with forced ventilation cooling

Abstract

This application discloses a forced ventilation cooling DC converter, including a housing and a circuit board with electrical components, and a heat dissipation hole group disposed on the peripheral wall of the housing; a pair of opening and closing plates that can slide in the inner cavity of the housing; and an opening and closing actuation device for controlling the opening and closing of the pair of opening and closing plates. The heat dissipation hole group includes two rows of side holes symmetrically disposed on the front and rear side walls of the housing; and a pair of central holes symmetrically disposed on the left and right side walls of the housing. Each opening and closing plate moves along a direction parallel to the axis of the side holes. By adopting the above technical solution, in daily use, the opening and closing actuation device drives the pair of opening and closing plates to repeatedly open and close, thereby allowing external air to enter the inner cavity of the housing through the side holes and central holes, dissipate heat from the electrical components, and then be discharged.

Description

Technical Field

[0001] This invention relates to a DC converter with forced ventilation and heat dissipation. Background Technology

[0002] With economic prosperity, rising living standards, and advanced production technology, people are becoming increasingly demanding in their use of time. In daily life, we have higher and higher requirements for equipment, hoping to improve its efficiency, reduce working hours, and maximize its value through innovation. With the development of technology, electric vehicles are being used more and more frequently. Their noiseless and pollution-free characteristics have made them a common and popular mode of transportation. The DC converter, as an indispensable component of electric vehicles, directly affects their normal operation.

[0003] Currently, a Chinese invention patent with publication number CN211830550U has appeared on the market: a fully sealed aluminum profile DC converter. It includes an aluminum profile, a sealing plate, a mounting cavity, multiple guide posts, guide grooves, limiting posts, and sealant. Compared to sealing rings, the sealant does not rely on elasticity to maintain a tight fit with the aluminum profile. Instead, during the injection process, the liquid's flow completely fills the gap between the sealing plate and the aluminum profile. This sealing method offers a longer service life, better sealing effect, and more reliable operation. However, its drawbacks include:

[0004] The installation cavity is completely sealed, which limits the heat dissipation efficiency of the internal electrical components and can easily cause damage to the internal components. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a forced ventilation cooling DC converter, including a housing and a circuit board with electrical components, and further including:

[0007] The heat dissipation holes are located on the peripheral wall of the outer casing;

[0008] A pair of hinged plates that can slide within the inner cavity of the outer casing;

[0009] An opening and closing actuator is used to control the closing / separation of a pair of opening and closing plates.

[0010] The heat dissipation hole assembly includes:

[0011] Two rows of side holes are symmetrically arranged on the front and rear side walls of the outer casing;

[0012] A pair of central holes are symmetrically arranged on the left and right side walls of the outer casing;

[0013] Each of the opening and closing plates moves along a direction parallel to the axis of the side hole.

[0014] The opening and closing actuation device includes:

[0015] A pair of discs are symmetrically arranged on the front and rear sides of the top of the inner cavity of the outer shell through corresponding slots;

[0016] A pair of slots are respectively provided on the top surface of each hinge plate;

[0017] A pair of levers are fixed to the eccentric part of the bottom surface of the corresponding disc and can slide in the corresponding slots;

[0018] A drive unit for driving a pair of discs to rotate in opposite directions.

[0019] The disc, groove, chute, and lever each have two pairs, symmetrically distributed on the left and right.

[0020] The opening and closing actuator also includes:

[0021] Several sealing rings are respectively fitted onto the bottom surface of the peripheral wall of each disc, with the outer ring sealing the inner wall of the groove.

[0022] The drive unit includes:

[0023] The connecting unit is used to drive and connect the four disks, so that the two front disks and the two rear disks rotate in opposite directions;

[0024] The power source is used to drive the operation of the connecting unit.

[0025] The connection unit includes:

[0026] The four main gears are concentrically fixed to the corresponding disks via corresponding gear shafts;

[0027] Two linked gears are rotatably mounted on the top of the housing via corresponding gear shafts;

[0028] The two main gears on the left and right sides mesh with each other, and the two main gears on the front and rear sides are connected by corresponding linkage gears. The power source drives one of the main gears to rotate.

[0029] The connection unit also includes:

[0030] Several bearings are provided for rotatably mounting each gear shaft one and each gear shaft two onto the housing.

[0031] The power source includes:

[0032] The worm gear is rotatably mounted on the top of the housing via a motor;

[0033] The worm gear is fixed to the top surface of one of the main gears and is connected to the worm drive.

[0034] Also includes:

[0035] A heat-conducting housing that covers the circuit board and electrical components;

[0036] Thermal grease is applied between the thermal housing and the electrical components.

[0037] Several grooves are respectively set at the bottom of each opening and closing plate, which are adapted to the shape of the heat-conducting shell.

[0038] The beneficial effects of this invention are as follows:

[0039] 1. By setting up a heat dissipation hole group, a pair of opening and closing plates and an opening and closing actuation unit, the air inside the housing is forced to circulate, ensuring that the hot air inside the housing can be fully discharged each time and completely replaced with the cold air outside, thus improving the heat dissipation effect on electrical components.

[0040] 2. By using two pairs of discs, two pairs of grooves, two pairs of shift grooves, two pairs of shift rods, several gear shafts, several gear shafts, several bearings, worm gears, worms and motors, the two pairs of opening and closing plates remain parallel to each other when they close and separate, ensuring that the hot air inside the housing can be completely discharged.

[0041] 3. The use of a heat-conducting shell, thermal grease, and several grooves allows for rapid heat dissipation from the electrical components and ensures a tight seal between the bottom of the hinged plates and the electrical components, thereby guaranteeing efficient heat dissipation. Attached Figure Description

[0042] Figure 1 This is a front-view schematic diagram of the internal structure of the DC converter with forced ventilation and heat dissipation in the embodiments of this application;

[0043] Figure 2 This is a top-view schematic diagram of the internal structure of the DC converter with forced ventilation and heat dissipation in an embodiment of this application.

[0044] Figure Labels

[0045] 1-Outer shell, 2-Electrical components, 3-Circuit board, 4-Heat dissipation hole group, 41-Side hole, 42-Central hole, 5-Opening and closing plate, 6-Opening and closing actuation device, 61-Disc, 62-Gutter, 63-Slot, 64-Stalk, 65-Sealing ring, 7-Drive device, 71-Connecting unit, 711-Main gear, 712-Gear shaft one, 713-Linkage gear, 714-Gear shaft two, 715-Bearing, 72-Power source, 721-Worm gear, 722-Motor, 723-Worm wheel, 8-Heat-conducting shell, 9-Heat-conducting silicone grease, 10-Gutter. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0047] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0048] The server provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0049] Example 1:

[0050] like Figure 1 and Figure 2 As shown, this application embodiment provides a DC converter with forced ventilation and heat dissipation, including a housing 1 and a circuit board 3 with electrical components 2, and also includes a heat dissipation hole group 4 disposed on the peripheral wall of the housing 1; a pair of opening and closing plates 5 that can slide in the inner cavity of the housing 1; and an opening and closing actuation device 6 for controlling the pair of opening and closing plates 5 to close / separate.

[0051] Furthermore, the heat dissipation hole group 4 includes two rows of side holes 41, symmetrically arranged on the front and rear side walls of the outer casing 1; a pair of central holes 42, symmetrically arranged on the left and right side walls of the outer casing 1, and each opening and closing plate 5 moves along a direction parallel to the axis of the side holes 41.

[0052] In this embodiment of the application, due to the above-described structure, when heat dissipation is required for the electrical component 2, the opening and closing actuator 6 is activated, causing the pair of opening and closing plates 5 to repeatedly close and separate. When the pair of opening and closing plates 5 close, the air between the pair of opening and closing plates 5 is discharged from the housing through the central hole 42, and the external air enters the housing cavity through each side hole 41. When the pair of opening and closing plates 5 open, the air between the pair of opening and closing plates 5 and the corresponding side holes 41 is squeezed out of the housing through these side holes 41. Correspondingly, the external air enters the housing cavity between the pair of opening and closing plates 5 through each central hole 42. In this way, forced exchange of air in the housing cavity and air outside the housing is achieved.

[0053] Example 2:

[0054] like Figure 1 and Figure 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the opening and closing actuation device 6 includes a pair of discs 61, which are symmetrically arranged on the front and rear sides of the top of the inner cavity of the outer shell 1 through corresponding slots 62; a pair of toggle slots 63, which are respectively arranged on the top surface of each opening and closing plate 5; a pair of levers 64, which are respectively fixed to the eccentric position of the bottom surface of the corresponding discs 61 and can slide in the corresponding toggle slots 63; and a driving device 7, which is used to drive the pair of discs 61 to rotate in opposite directions.

[0055] Preferably, the disc 61, the groove 62, the chute 63, and the lever 64 are all in two pairs, symmetrically distributed on the left and right.

[0056] Furthermore, the opening and closing actuation device 6 also includes several sealing rings 65, which are respectively fitted on the bottom surface of the peripheral wall of each disc 61, and the outer ring is sealed to the inner wall of the groove 62.

[0057] In this embodiment of the application, due to the above-described structure, the driving device 7 drives each disk 61 to rotate, causing each lever 64 to slide in the corresponding slot 63 as the disk 61 rotates, and driving the corresponding opening and closing plate 5 to move. Each disk 61 only needs to rotate continuously to drive the pair of levers 64 on the rear and front sides to repeatedly move closer to the corresponding side hole 41 and away from the corresponding side hole 41, so that the pair of opening and closing plates 5 repeatedly close and separate.

[0058] Example 3:

[0059] like Figure 1 and Figure 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the driving device 7 includes a connecting unit 71 for drivingly connecting the four disks 61, so that the two front disks 61 and the two rear disks 61 rotate in opposite directions; and a power source 72 for driving the connecting unit 71 to operate.

[0060] Furthermore, the connecting unit 71 includes four main gears 711, which are concentrically fixed to the corresponding disks 61 via corresponding gear shafts 712; two linkage gears 713, which are rotatably mounted on the top of the housing 1 via corresponding gear shafts 714. The two main gears 711 on the left and right sides mesh with each other, and the two main gears 711 on the front and rear sides are mutually driven and engaged through the corresponding linkage gears 713. The power source 72 drives one of the main gears 711 to rotate.

[0061] Furthermore, the connecting unit 71 also includes several bearings 715 for rotatably mounting each gear shaft 1 712 and each gear shaft 2 714 on the housing.

[0062] Furthermore, the power source 72 includes a worm gear 721, which is rotatably mounted on the top of the housing 1 via a motor 722; and a worm wheel 723, which is fixed to the top surface of one of the main gears 711 and is connected to the worm gear 721 for transmission.

[0063] In this embodiment of the application, due to the above-described structure, the motor 722 operates, and through the cooperation of the worm 721 and the worm wheel 723, it drives one of the main gears 711 to move. With the cooperation of the two linkage gears 713, the four main gears 711 move together, so that the four discs 61 move synchronously. When the motor 722 is running, the pair of opening and closing plates 5 repeatedly open and close.

[0064] Example 4:

[0065] like Figure 1 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a heat-conducting shell 8, which covers the circuit board 3 and the electrical component 2; thermal grease 9, which is disposed between the heat-conducting shell 8 and the electrical component 2; and several grooves 10, which are respectively disposed at the bottom of each opening and closing plate 5 and are adapted to the shape of the heat-conducting shell 8.

[0066] In this embodiment of the application, due to the above-described structure, the heat in the electrical component 2 is conducted to the large-area heat-conducting shell 8 through the thermal grease 9. The heat-conducting shell 8 is made of copper or aluminum and has a good heat dissipation effect, increasing the speed at which heat dissipates into the inner cavity of the outer shell 1. The grooves 10 can improve the fit between the bottom surface of the corresponding opening and closing plate 5 and the outer wall of the heat-conducting shell 8, ensuring sealing, and cooperate with the sealing rings 65. The inner cavity of the shell is divided into three independent ventilation chambers. The ventilation chambers on both sides are connected to the side holes 41 respectively, and the ventilation chamber in the middle is connected to the central hole 42. When a pair of opening and closing plates 5 are separated, the ventilation chambers on both sides shrink and the ventilation chamber in the middle enlarges. When a pair of opening and closing plates 5 are closed, the ventilation chamber in the middle shrinks and the ventilation chambers on both sides enlarge, thus achieving forced ventilation in each ventilation chamber.

[0067] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0068] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A DC converter with forced ventilation and heat dissipation, comprising a housing (1) and a circuit board (3) with electrical components (2), characterized in that, Also includes: A heat dissipation hole group (4) is provided on the peripheral wall of the outer casing (1); A pair of hinged plates (5) can slide within the inner cavity of the outer shell (1); An opening and closing actuator (6) is used to control the closing / separation of the pair of opening and closing plates (5); The heat dissipation hole group (4) includes: Two rows of side holes (41) are symmetrically arranged on the front and rear side walls of the outer casing (1); A pair of central holes (42) are symmetrically arranged on the left and right sidewalls of the outer casing (1); Each of the opening and closing plates (5) moves along a direction parallel to the axis of the side hole (41); The opening and closing actuation device (6) includes: A pair of discs (61) are symmetrically arranged on the front and rear sides of the top of the inner cavity of the outer shell (1) through corresponding slots (62); A pair of slots (63) are respectively provided on the top surface of each of the opening and closing plates (5); A pair of levers (64) are respectively fixed to the eccentric part of the bottom surface of the corresponding disk (61) and can slide in the corresponding lever groove (63); Drive device (7) for driving the pair of disks (61) to rotate in opposite directions; The disc (61), groove (62), sprocket (63) and lever (64) are all in two pairs, symmetrically distributed on the left and right sides; The opening and closing actuation device (6) further includes: Several sealing rings (65) are respectively fitted on the bottom surface of the peripheral wall of each of the discs (61), and the outer ring is sealed to the inner wall of the groove (62); The driving device (7) includes: The connecting unit (71) is used to drive the four disks (61) so that the two front disks (61) and the two rear disks (61) rotate in opposite directions; A power source (72) is used to drive the connection unit (71) to operate; The connection unit (71) includes: Four main gears (711) are concentrically fixed to the corresponding disks (61) via corresponding gear shafts (712); Two linked gears (713) are rotatably mounted on the top of the housing (1) via corresponding gear shafts (714); Among them, the two main gears (711) on the left and right sides mesh with each other, and the two main gears (711) on the front and rear sides are mutually driven and coordinated through the corresponding linkage gears (713). The power source (72) drives one of the main gears (711) to rotate. The connection unit (71) further includes: A plurality of bearings (715) are provided for rotatably mounting each of the first gear shafts (712) and the second gear shaft (714) on the housing; The power source (72) includes: A worm gear (721) is rotatably mounted on the top of the housing (1) via a motor (722); A worm gear (723) is fixed to the top surface of one of the main gears (711) and is connected to the worm (721) for transmission. Also includes: A heat-conducting shell (8) is provided, which covers the circuit board (3) and electrical components (2); Thermal grease (9) is disposed between the thermally conductive shell (8) and the electrical component (2); Several grooves (10) are respectively set at the bottom of each of the opening and closing plates (5) and are adapted to the shape of the heat-conducting shell (8).

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