Power supply box and power supply

Abstract

The utility model relates to the technical field of power supplies, in particular to a power supply box and a power supply. The power supply box comprises a first shell, a circuit board, a first heat conduction piece and a heat conduction plastic piece. The circuit board is arranged on the first shell, and a first heating device is arranged on the side, facing the first shell, of the circuit board. The first heat conduction piece is arranged on the side, facing the circuit board, of the first shell. The heat conduction plastic piece is clamped between the first heat conduction piece and the circuit board, and at least part of the heat conduction plastic piece is located between the first heat conduction piece and the first heating device. Through the mode, the first heating device and other electronic elements can be welded on the circuit board together, so that the welding cost can be reduced; the first heating device is in contact with the first heat conduction piece through the heat conduction plastic piece, so that the heat conduction effect between the first heat conduction piece and the first heating device is enhanced, and the problem of poor heat dissipation effect of the first heating device is solved; and the heat-conducting plastic part can deform, so that the problem of unsoldering of the first heating device and the circuit board can be solved.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to a power supply box and a power supply. Background Art

[0002] A power box is a modular power supply device used to power other electrical devices. It contains a high-heat-generating heat generating component, which is typically connected to the side walls of the chassis via aluminum side panels or to the bottom wall via aluminum bottom panels, allowing heat to be dissipated through the chassis.

[0003] When the heating device contacts the bottom wall of the casing through the bottom wall aluminum plate, the heating device is usually installed on the bottom wall aluminum plate first, and then the heating device is welded to the circuit board. Since the heating device is fixedly connected to the bottom wall aluminum plate, it is necessary to fix the bottom wall aluminum plate before wave soldering the heating device, or to perform manual welding, which makes welding inconvenient and increases welding costs. When the circuit board, heating device and bottom wall aluminum plate are installed in the casing, the bottom wall aluminum plate is difficult to fit with the bottom wall of the casing, resulting in poor heat dissipation effect, and the stress between the bottom wall aluminum plate and the bottom wall of the casing easily causes the heating device and the circuit board to become desoldered, resulting in a high defective rate. Utility Model Content

[0004] The embodiments of the present application aim to provide a power supply box and a power supply, so as to at least improve the problems of high welding cost, poor heat dissipation effect and high defective rate.

[0005] In order to solve the above technical problems, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a power supply box, comprising a first housing, a circuit board, a first heat-conducting member, and a heat-conducting plastic member. The circuit board is disposed in the first housing, and a first heat-generating device is disposed on a side of the circuit board facing the first housing. The first heat-conducting member is disposed on a side of the first housing facing the circuit board. The heat-conducting plastic member is sandwiched between the first heat-conducting member and the circuit board, and is at least partially located between the first heat-conducting member and the first heat-generating device.

[0007] In some embodiments, along a direction in which the circuit board is spaced from the first housing, a projection of the first heat-conducting component is located within a projection of the heat-conductive plastic component.

[0008] In some embodiments, a positioning mark is provided on a side of the first housing facing the circuit board, and the positioning mark is used to indicate a position of the thermally conductive plastic component relative to the first thermally conductive component.

[0009] In some embodiments, the power box further comprises a second housing connected with the first housing, the second housing is arranged at an angle with the first housing, the second housing is provided with an abutting portion abutting the side of the circuit board away from the first housing. The first housing is provided with a second nut column, the circuit board is provided with a second through hole, the power box further comprises a second fastener, the second fastener is connected with the second nut column through the second through hole. Wherein, along the direction perpendicular to the direction between the circuit board and the first housing, the abutting portion and the second nut column are respectively arranged adjacent to opposite sides of the heat-conducting plastic part.

[0010] In some embodiments, the first housing is provided with a first nut column, the circuit board is provided with a first through hole, and the power box further comprises a first fastener, the first fastener is connected with the first nut column through the first through hole.

[0011] In some embodiments, the end of at least one of the first nut columns is provided with a boss, the boss is inserted into the first through hole, and the boss is matched with the first through hole.

[0012] In some embodiments, the circuit board is rectangular, the circuit board is provided with at least four first through holes, wherein the four first through holes are respectively arranged adjacent to four corners of the circuit board; the first housing is provided with at least four first nut columns, and the power box comprises at least four first fasteners, wherein the four first fasteners are respectively connected with the four first nut columns through the four first through holes.

[0013] In some embodiments, the power box further comprises a second housing connected with the first housing, the second housing is arranged at an angle with the first housing. The power box further comprises a second heat-conducting part arranged in the second housing. The side of the circuit board away from the first housing is further provided with a second heat-generating device, and the second heat-generating device is in contact with the second heat-conducting part.

[0014] In some embodiments, the power box further comprises a pressing plate arranged in the second housing, the pressing plate is at least partially located on the side of the second heat-generating device away from the second housing, and the pressing plate clamps the second heat-generating device in cooperation with the second heat-conducting part.

[0015] In some embodiments, the first housing is provided with a first connecting hole.

[0016] In some embodiments, the second housing is provided with a second connecting hole.

[0017] In a second aspect, the embodiments of the present application provide a power supply, which comprises the power supply box as any one of the above.

[0018] The power supply box and the power supply of the embodiments of the present application have the following advantages: the first heating device is first mounted on the circuit board and then mounted in the first shell, so that the first heating device can be welded together with other electronic components on the circuit board, which is conducive to reducing the welding cost; the first heating device is in contact with the first heat-conducting member mounted in the first shell through the heat-conducting plastic member, which is conducive to enhancing the heat-conducting effect between the first heat-conducting member and the first heating device and improving the poor heat dissipation effect of the first heating device; the heat-conducting plastic member can be deformed under the extrusion of the first heating device and the first heat-conducting member, which is conducive to improving the problem of the first heating device being detached from the circuit board and reducing the rate of defective products.

[0019] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the embodiments of the present application can be implemented in accordance with the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like reference numerals designate similar items in the figures and wherein: the drawings are not to scale.

[0021] Figure 1 is a structural schematic diagram of the power supply box of the embodiments of the present application;

[0022] Figure 2 is an exploded view of the power supply box of the embodiments of the present application;

[0023] Figure 3 is another exploded view of the power supply box of the embodiments of the present application.

[0024] The reference numerals in the specific embodiments are as follows:

[0025] 100, power supply box;

[0026] 1, first shell; 11, first connecting hole; 12, first nut column; 121, boss; 13, positioning mark; 14, second nut column; 15, first hole;

[0027] 2, circuit board; 21, first through hole; 22, second through hole; 23, first heating device; 24, second heating device;

[0028] 3, first heat-conducting member; 31, second hole;

[0029] 4, heat-conducting plastic member;

[0030] 5, second housing; 51, abutting portion; 52, third hole; 53, fifth hole; 54, second connecting hole;

[0031] 6, second heat conducting member; 61, fourth hole; 62, third through hole;

[0032] 7, pressing plate; 71, sixth hole;

[0033] a1, first fastener; a2, second fastener; a3, third fastener; a4, fourth fastener; a5, fifth fastener. DETAILED DESCRIPTION

[0034] For the purpose of clarity, the present application will be described in greater detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present between them. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present between them.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. The description herein of any embodiments, including preferred embodiments, is not intended to be limiting.

[0036] In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0037] In the description of the embodiments of the present application, the use of the terms "first", "second", and the like to qualify parts is merely for the purpose of distinguishing the corresponding parts, and the above terms have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] Unless otherwise defined, all technical and scientific terms used in the present disclosure have the same meanings as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned in this specification are herein incorporated by reference in their entirety for the purpose of describing and disclosing, for example, the methodologies described in such publications, which might provide useful background to the present application.

[0039] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0040] In a first aspect, referring to Figure 1 and Figure 2 , the embodiments of the present application provide a power supply box 100, which comprises a first shell 1, a circuit board 2, a first heat-conducting member 3, and a heat-conducting plastic member 4. The circuit board 2 is arranged in the first shell 1. The first heat-conducting member 3 is arranged on the side of the first shell 1 facing the circuit board 2. The heat-conducting plastic member 4 is clamped between the first heat-conducting member 3 and the circuit board 2. That is, the first shell 1, the first heat-conducting member 3, the heat-conducting plastic member 4, and the circuit board 2 are arranged in sequence along the thickness direction of the first shell 1. Since the heat-conducting plastic member 4 is clamped between the first heat-conducting member 3 and the circuit board 2, the heat of the circuit board 2 can be conducted along the path of the circuit board 2-heat-conducting plastic member 4-first heat-conducting member 3-first shell 1, and the heat of the circuit board 2 can be dissipated through the first shell 1, which is conducive to enhancing the heat dissipation effect of the circuit board 2.

[0041] For the above-mentioned first shell 1, referring to Figure 1 and Figure 2 , the first shell 1 can be in the shape of a rectangular sheet. The first shell 1 can be made of metal material, such as stainless steel, copper, aluminum, aluminum alloy, etc., to enhance the heat dissipation effect of the circuit board 2.

[0042] Referring to Figure 1 and Figure 2 , in some embodiments, the first shell 1 is provided with a first connecting hole 11. The first connecting hole 11 can be passed through by a screw to mount the first shell 1 to an external device, and the first shell 1 can be tightly pressed against the external device to dissipate the heat of the first shell 1 through the external device. The number of first connecting holes 11 can be multiple to enhance the firmness of the first shell 1 mounted to the external device. The first connecting hole 11 can be a strip-shaped hole, so that the position of the first shell 1 relative to the external device can be adjusted.

[0043] In some embodiments, the circuit board 2 can be mounted to the first shell 1 by means of buckling or bolts. Exemplarily, referring to Figure 1 and Figure 2, the first shell 1 is provided with a first nut column 12, the circuit board 2 is provided with a first through hole 21, and the power box 100 further comprises a first fastener a1, the first fastener a1 is connected with the first nut column 12 through the first through hole 21. That is, the circuit board 2 is installed on the first shell 1 through the first fastener a1.

[0044] In some embodiments, the first fastener a1 is a bolt, and the first nut column 12 is provided with a threaded hole. In some embodiments, the threaded hole of the first nut column 12 is formed by tapping a blind hole.

[0045] In some embodiments, the number of the first nut columns 12 is multiple, and correspondingly, the number of the first through holes 21 and the first fasteners a1 is multiple, each of the first fasteners a1 is connected with one of the first nut columns 12 through one of the first through holes 21, so as to enhance the firmness of the circuit board 2 installed on the first shell 1.

[0046] In some embodiments, referring to Figure 2 , the side of the first shell 1 facing the circuit board 2 is provided with a positioning mark 13, the positioning mark 13 is used to indicate the position of the heat-conducting plastic part 4 relative to the first heat-conducting part 3. When the staff assembles the power box 100, the position of the heat-conducting plastic part 4 can be determined through the positioning mark 13, so as to improve the accuracy of the assembly position of the heat-conducting plastic part 4 and improve the assembly efficiency of the power box 100. The positioning mark 13 can be ink sprayed or laser-engraved marks. In some embodiments, referring to Figure 2 , the shape of the positioning mark 13 is a dashed box.

[0047] In some embodiments, the number of the first nut columns 12 is at least two. The circuit board 2 can be completely fixed on the first shell 1 through two first fasteners a1.

[0048] In some embodiments, referring to Figure 2 , the circuit board 2 is rectangular, and the circuit board 2 is provided with at least four first through holes 21, wherein the four first through holes 21 are respectively arranged adjacent to the four corners of the circuit board 2; the first shell 1 is provided with at least four first nut columns 12, and the power box 100 comprises at least four first fasteners a1, wherein the four first fasteners a1 are respectively connected with the four first nut columns 12 through the four first through holes 21. The four corners of the circuit board 2 are respectively installed on the first shell 1 through the four first fasteners a1, which is conducive to reducing the number of the first fasteners a1 and maintaining the firmness of the circuit board 2 installed on the first shell 1.

[0049] In some embodiments, referring to Figure 2The end of at least one first nut column 12 is provided with a boss 121, the boss 121 is inserted into the first through hole 21, and the boss 121 is matched with the first through hole 21. That is, after the boss 121 is inserted into the first through hole 21, the boss 121 is limited by the first through hole 21, and the boss 121 is not easy to move relative to the circuit board 2, thereby positioning the position of the circuit board 2 relative to the first shell 1. When the first fastener a1 is tightened, the cooperation between the boss 121 and the first through hole 21 can prevent the circuit board 2 from shaking relative to the first shell 1, and improve the problem that the position of the heat-conducting plastic part 4 is offset relative to the first shell 1 due to the shaking of the first shell 1. Among them, the number of first nut columns 12 provided with bosses 121 is at least two, and two bosses 121 are respectively inserted into two first through holes 21 to prevent the circuit board 2 from rotating around the boss 121, and improve the problem that the position of the heat-conducting plastic part 4 is offset relative to the first shell 1 due to the rotation of the first shell 1.

[0050] In some embodiments, referring to Figure 1 and Figure 2 , the first shell 1 is provided with a second nut column 14, the circuit board 2 is provided with a second through hole 22, and the power supply box 100 further includes a second fastener a2, the second fastener a2 is connected with the second nut column 14 through the second through hole 22. In some embodiments, the second fastener a2 is a bolt, and the second nut column 14 is provided with a threaded hole. In some embodiments, the threaded hole of the second nut column 14 is formed by tapping a blind hole.

[0051] In the present embodiment, the second nut column 14 is arranged adjacent to the heat-conducting plastic part 4 in a direction perpendicular to the direction in which the circuit board 2 and the first shell 1 are spaced apart. That is, when viewed in the direction in which the circuit board 2 and the first shell 1 are spaced apart, the second nut column 14 is arranged adjacent to the heat-conducting plastic part 4. By arranging the second nut column 14 adjacent to the heat-conducting plastic part 4, the second fastener a2 mounted on the second nut column 14 applies a pressure to the circuit board 2 towards the first shell 1, overcoming the reaction force of the heat-conducting plastic part 4 on the circuit board 2, that is, pressing the circuit board 2, improving the problem of the circuit board 2 bending and bulging, so that the circuit board 2 and the first heat-conducting part 3 clamp the heat-conducting plastic part 4.

[0052] In some embodiments, the number of second nut columns 14 is multiple, and multiple second nut columns 14 are arranged around the heat-conducting plastic part 4. Multiple second fasteners a2 connected with multiple second nut columns 14 respectively press the circuit board 2 at the edges adjacent to the heat-conducting plastic part 4, so that the pressure on the heat-conducting plastic part 4 is more balanced, improving the uniformity of the pressure distribution of the circuit board 2 and the first heat-conducting part 3 clamping the heat-conducting plastic part 4, the heat-conducting plastic part 4 is not easy to appear the situation that one end is excessively compressed and the other end is not compressed, improving the problem that the heat-conducting plastic part 4 is deviated when clamped by the circuit board 2 and the first heat-conducting part 3, and improving the stability of clamping.

[0053] In some embodiments, at least one second nut column 14 corresponds to the position of the middle part of the circuit board 2, so that the second fastener a2 connected with the second nut column 14 can better improve the problem of the middle part of the circuit board 2 being raised, and is conducive to reducing the number of the second nut column 14 and the second fastener a2.

[0054] In some embodiments, referring to Figure 3 , the circuit board 2 is provided with a first heat generating device 23 on the side facing the first shell 1, and the heat conductive plastic part 4 is at least partially located between the first heat conductive part 3 and the first heat generating device 23. The heat of the first heat generating device 23 can be conducted along the path of the first heat generating device 23-heat conductive plastic part 4-first heat conductive part 3-first shell 1, and the heat of the first heat generating device 23 can be dissipated through the first shell 1, which is conducive to enhancing the heat dissipation effect of the first heat generating device 23.

[0055] In some embodiments, the heat conductive plastic part 4 completely covers the first heat generating device 23, so as to enhance the heat dissipation effect of the first heat generating device 23.

[0056] The first heat generating device 23 refers to an electronic device that can generate heat when working, especially an electronic device that can generate a large amount of heat and have heat accumulation phenomenon. By contacting the first heat generating device 23 with the heat conductive plastic part 4, the heat accumulation phenomenon of the first heat generating device 23 is improved.

[0057] Since the heat conduction between the first heat generating device 23 and the first heat conductive part 3 is realized through the heat conductive plastic part 4, the first heat generating device 23 can be first installed on the circuit board 2 and then installed on the first shell 1, that is, the first heat generating device 23 can be welded together with other electronic components on the circuit board 2, which is conducive to reducing the welding cost. The first heat generating device 23 and the first heat conductive part 3 are in contact through the heat conductive plastic part 4, which is conducive to enhancing the heat conduction effect between the first heat conductive part 3 and the first heat generating device 23 and improving the poor heat dissipation effect of the first heat generating device 23. The heat conductive plastic part 4 can be deformed under the extrusion of the first heat generating device 23 and the first heat conductive part 3, so as to reduce the stress between the first heat generating device 23 and the circuit board 2, which is conducive to improving the problem of the first heat generating device 23 being de-welded from the circuit board 2 and reducing the rate of defective products.

[0058] For the above-mentioned first heat conductive part 3, referring to Figure 2 , the first heat conductive part 3 is in the shape of a rectangular plate. It can be understood that the first heat conductive part 3 is made of excellent heat conductive material, such as copper or aluminum, which can quickly conduct the heat of the circuit board 2 and the first heat generating device 23 to itself.

[0059] In some embodiments, referring to Figure 3The first shell 1 is provided with a first hole 15, the first heat conduction member 3 is provided with a second hole 31, and the power box 100 further comprises a third fastener a3 which passes through the first hole 15 and is arranged in the second hole 31. That is, the first heat conduction member 3 is installed on the first shell 1 through the third fastener a3.

[0060] In some embodiments, the third fastener a3 is a bolt, the first hole 15 is a through hole, and the second hole 31 is a threaded hole. In some embodiments, the second hole 31 is a blind hole which is threaded.

[0061] In some embodiments, the number of the first holes 15 and the second holes 31 is plural, and the number of the third fasteners a3 is also plural. Each of the third fasteners a3 passes through one of the first holes 15 and is arranged in one of the second holes 31, so as to enhance the firmness of the installation of the first heat conduction member 3 on the first shell 1.

[0062] In some embodiments, referring to Figure 3 , in the direction in which the circuit board 2 is spaced apart from the first shell 1, the projection of the first heat conduction member 3 is located in the projection of the heat conduction plastic member 4. The gap between the circuit board 2 and the first heat conduction member 3 is completely filled by the heat conduction plastic member 4, which improves the problem of arc caused by too close distance between the first heat conduction member 3 and the circuit board 2, and is beneficial to prolong the service life of the circuit board 2.

[0063] In some embodiments, in any direction perpendicular to the direction in which the circuit board 2 is spaced apart from the first shell 1, the heat conduction plastic member 4 protrudes from the first heat conduction member 3, so as to further improve the problem of arc caused by too close distance between the first heat conduction member 3 and the circuit board 2. It can be understood that the heat conduction plastic member 4 has insulation property.

[0064] For the heat conduction plastic member 4 described above, the heat conduction plastic member 4 can be heat conduction mud, such as silicone grease, or heat conduction glue. The heat conduction plastic member 4 can be prefabricated into a rectangular sheet shape so as to be clamped between the first heat conduction member 3 and the circuit board 2. One side of the heat conduction plastic member 4 can be provided with adhesive in advance so as to be attached to the first heat conduction member 3.

[0065] In some embodiments, referring to Figure 1 and Figure 2 , the power box 100 further comprises a second shell 5 which is connected with the first shell 1 and is arranged at an angle with the first shell 1. The second shell 5 is provided with an abutting portion 51 which abuts against one side of the circuit board 2 away from the first shell 1.

[0066] In some embodiments, referring to Figure 1 and Figure 2The abutting portion 51 abuts against the edge of the circuit board 2, exerts a pressure on the circuit board 2 towards the first shell 1, overcomes the reaction force of the thermally conductive plastic member 4 on the circuit board 2, i.e. presses the circuit board 2, improves the problem of the circuit board 2 bending and bulging, and clamps the thermally conductive plastic member 4 by the circuit board 2 and the first thermally conductive member 3.

[0067] The abutting portion 51 replaces part of the second fastener a2 to press the circuit board 2, which is conducive to reducing the number of second fasteners a2 while pressing the thermally conductive plastic member 4, facilitating the installation and disassembly of the circuit board 2, and improving the disassembly efficiency of the circuit board 2. It can be understood that, in order to install the second fastener a2, the circuit board 2 needs to reserve a second through hole 22 and a separation space. The separation space is used for the second fastener a2 to pass through the second through hole 22, and the separation space is used for reserving an electrical gap between the second fastener a2 and the electronic elements on the circuit board 2. Therefore, reducing the number of second fasteners a2 is conducive to reducing the number of second through holes 22 reserved on the circuit board 2 and reducing the number of separation spaces, thereby improving the board density of the circuit board 2. The abutting portion 51 can be formed by punching the second shell 5, which is conducive to reducing the processing cost of the abutting portion 51.

[0068] In some embodiments, the number of abutting portions 51 is multiple, and the multiple abutting portions 51 are arranged in a direction parallel to the circuit board 2 to abut against multiple positions on the circuit board 2.

[0069] In some embodiments, referring to Figure 2 , the projection of the abutting portion 51 is located on the thermally conductive plastic member 4 in a direction in which the circuit board 2 is spaced apart from the first shell 1. Thus, the abutting portion 51 directly abuts against the part of the circuit board 2 that is in contact with the thermally conductive plastic member 4, further improving the problem of the circuit board 2 bending and bulging.

[0070] For the above-mentioned second shell 5, referring to Figure 2 , the second shell 5 can be in the shape of a rectangular sheet. The second shell 5 can be made of metal, such as stainless steel, copper, aluminum, aluminum alloy, etc., to enhance the heat conduction effect of the second shell 5, so that the heat of the first shell 1 can be conducted to the second shell 5 and dissipated through the second shell 5.

[0071] In some embodiments, referring to Figure 2 , the included angle between the second shell 5 and the first shell 1 is a right angle.

[0072] In some embodiments, referring to Figure 2 , in a direction perpendicular to the direction in which the circuit board 2 and the first shell 1 are spaced apart, the abutting portion 51 and the second nut column 14 are respectively arranged adjacent to opposite sides of the thermally conductive plastic member 4.

[0073] In some embodiments, taking Figure 2 as an example, Figure 2The number of the second nut column 14 is one, and the number of the abutting part 51 is two, and the two abutting parts 51 are arranged in parallel to the circuit board 2. In the direction perpendicular to the direction of the circuit board 2 and the first shell 1, the abutting part 51 and the second nut column 14 are arranged on the opposite sides of the heat-conducting plastic piece 4, respectively, and the second nut column 14 and the two abutting parts 51 are arranged in a triangle shape. The second fastener a2 connected with the second nut column 14 is used to press the edge of the circuit board 2 close to the heat-conducting plastic piece 4, so that the two abutting parts 51 and the second fastener a2 press the circuit board 2 on both sides of the heat-conducting plastic piece 4, respectively, so that the pressure on both sides of the heat-conducting plastic piece 4 is more balanced, which improves the uniformity of the pressure of the circuit board 2 and the first heat-conducting piece 3 clamping the heat-conducting plastic piece 4, and the heat-conducting plastic piece 4 is not easy to be excessively compressed on one end and not compressed on the other end, which improves the problem of deviation of the heat-conducting plastic piece 4 when clamped by the circuit board 2 and the first heat-conducting piece 3, and improves the stability of clamping. Moreover, the uniform compression degree of the heat-conducting plastic piece 4 can not only ensure the heat-conducting effect between the circuit board 2 and the first heat-conducting piece 3, but also improve the problem that the electronic components on the circuit board 2 are easy to be soldered off under the stress caused by the excessive compression of the heat-conducting plastic piece 4.

[0074] In some embodiments, the first shell 1 is not provided with the first nut column 12, and the second nut column 14 is arranged on the side of the heat-conducting plastic piece 4 away from the second shell 5. That is, the only fastener for pressing the circuit board 2 is the second fastener a2, and through the abutting part 51 and one second fastener a2, the circuit board 2 can be not only installed on the first shell 1, but also clamped with the first heat-conducting piece 3 to stably clamp the heat-conducting plastic piece 4, while reducing the number of holes on the circuit board 2.

[0075] In some embodiments, referring to Figure 1 and Figure 2 , the power box 100 further comprises a second heat-conducting piece 6 arranged on the second shell 5. The side of the circuit board 2 away from the first shell 1 is further provided with a second heat-generating device 24, and the second heat-generating device 24 is in contact with the second heat-conducting piece 6. The heat of the second heat-generating device 24 can be conducted along the path of the second heat-generating device 24-second heat-conducting piece 6-second shell 5, and the heat of the second heat-generating device 24 can be dissipated through the second shell 5, which is conducive to enhancing the heat dissipation effect of the second heat-generating device 24.

[0076] The second heat-generating device 24 refers to an electronic device capable of generating heat during operation, especially an electronic device capable of generating a large amount of heat and causing heat accumulation. The second heat-generating device 24 is in contact with the heat-conducting plastic member 4 to improve the heat accumulation of the second heat-generating device 24. In the embodiments of the present application, the second heat-generating device 24 also specifically refers to an electronic device that cannot be mounted on the side of the circuit board 2 facing the first shell 1. Since the second heat-generating device 24 cannot be mounted on the side of the circuit board 2 facing the first shell 1, it cannot dissipate heat through the first shell 1.

[0077] For the above-mentioned second heat-conducting member 6, please refer to Figure 2 , the second heat-conducting member 6 is in the shape of a rectangular plate. It can be understood that the second heat-conducting member 6 is made of a good heat-conducting material, such as copper or aluminum, which can quickly conduct the heat of the circuit board 2 and the second heat-generating device 24 to itself.

[0078] In some embodiments, please refer to Figure 3 , the second shell 5 is provided with a third hole 52, the second heat-conducting member 6 is provided with a fourth hole 61, and the power box 100 further comprises a fourth fastener a4, which passes through the third hole 52 and is arranged in the fourth hole 61. That is, the second heat-conducting member 6 is mounted on the second shell 5 through the fourth fastener a4.

[0079] In some embodiments, the fourth fastener a4 is a bolt, the third hole 52 is a through hole, and the fourth hole 61 is a threaded hole. In some embodiments, the fourth hole 61 is a blind hole that is threaded.

[0080] In some embodiments, the number of third holes 52 and fourth holes 61 is multiple, and correspondingly, the number of fourth fasteners a4 is multiple. Each fourth fastener a4 passes through a third hole 52 and is arranged in a fourth hole 61, so as to enhance the firmness of the second heat-conducting member 6 mounted on the second shell 5.

[0081] In some embodiments, please refer to Figure 1 and Figure 2 , the power box 100 further comprises a pressing plate 7, which is arranged on the second shell 5. The pressing plate 7 is at least partially located on the side of the second heat-generating device 24 away from the second shell 5, and the pressing plate 7 clamps the second heat-generating device 24 together with the second heat-conducting member 6. The pressing plate 7 applies pressure to the second heat-generating device 24 towards the second heat-conducting member 6, so that the second heat-generating device 24 is in close contact with the second heat-conducting member 6, which is conducive to enhancing the heat conduction effect between the second heat-generating device 24 and the second heat-conducting member 6.

[0082] In some embodiments, please refer to Figure 2 and Figure 3The second shell 5 is provided with a fifth hole 53, the pressing plate 7 is provided with a sixth hole 71, and the power box 100 further comprises a fifth fastener a5 which passes through the fifth hole 53 and is arranged in the sixth hole 71. That is, the pressing plate 7 is installed on the second shell 5 through the fifth fastener a5.

[0083] In some embodiments, the fifth fastener a5 is a bolt, the fifth hole 53 is a through hole, and the sixth hole 71 is a threaded hole. In some embodiments, the sixth hole 71 is a blind hole which is threaded.

[0084] In some embodiments, the number of the fifth holes 53 and the sixth holes 71 is plural, and the number of the fifth fasteners a5 is also plural. Each fifth fastener a5 passes through one fifth hole 53 and is arranged in one sixth hole 71, so as to enhance the firmness of the pressing plate 7 installed on the second shell 5.

[0085] In some embodiments, referring to Figure 2 the number of the pressing plates 7 is plural, and each pressing plate 7 is used to clamp two second heat generating devices 24 in cooperation with the second heat conduction member 6. That is, the pressing plate 7 is located at least partially on the side of the two second heat generating devices 24 away from the second shell 5. Each pressing plate 7 is used to clamp two second heat generating devices 24 in cooperation with the second heat conduction member 6, which is beneficial to ensure that each second heat generating device 24 is pressed tightly by the pressing plate 7 and the second heat conduction member 6, and to enhance the heat conduction effect between the plurality of second heat generating devices 24 and the second heat conduction member 6 as a whole. In this embodiment, each pressing plate 7 is provided with only one sixth hole 71, and the sixth hole 71 is located between the two second heat generating devices 24 contacted by the pressing plate 7. That is, the fifth fastener a5 is only used to provide a pulling force to the pressing plate 7 towards the second shell, so that the pressing force of the pressing plate 7 on the two second heat generating devices 24 contacted is more uniform.

[0086] In some embodiments, referring to Figure 2 and Figure 3 the second heat conduction member 6 is provided with a third through hole 62, and the fifth fastener a5 passes through the fifth hole 53 and the third through hole 62 in sequence and is arranged in the sixth hole 71. The third through hole 62 is used for the fifth fastener a5 to pass through, so that the direction of the pulling force of the fifth fastener a5 on the pressing plate 7 is directly opposite to the second heat conduction member 6, which is beneficial to improve the stability of the pressing plate 7 clamping the second heat generating device 24 in cooperation with the second heat conduction member 6, and to improve the uniformity of the pressing force of the pressing plate 7 on the second heat generating device 24.

[0087] In some embodiments, referring to Figure 2The second shell 5 is provided with a second connecting hole 54 for connecting with an external device. The second connecting hole 54 can be passed through by a screw to mount the second shell 5 on the external device, and the second shell 5 can be pressed on the external device to lead out the heat of the second shell 5 through the external device. The number of the second connecting hole 54 can be multiple to enhance the firmness of the second shell 5 mounted on the external device. The second connecting hole 54 can be a strip-shaped hole, so that the position of the second shell 5 relative to the external device can be adjusted.

[0088] In a second aspect, the embodiments of the present application provide a power supply (not shown) comprising the power supply box 100. The power supply has the structural features and beneficial effects of the power supply box 100, which will not be repeated here.

[0089] The power supply box 100 and the power supply of the embodiments of the present application, the first heat generating device 23 can be welded with other electronic elements on the circuit board 2, which is conducive to reducing the welding cost; the first heat generating device 23 and the first heat conducting member 3 are in contact through the heat conducting plastic member 4, which is conducive to enhancing the heat conduction effect between the first heat conducting member 3 and the first heat generating device 23 and improving the poor heat dissipation effect of the first heat generating device 23; and the heat conducting plastic member 4 can be deformed, which is conducive to improving the problem of the first heat generating device 23 and the circuit board 2 being de-welded. The boss 121 is used to prevent the circuit board 2 from shaking relative to the first shell 1, and multiple bosses 121 are used to prevent the circuit board 2 from rotating around the boss 121, thereby improving the problem of the position of the heat conducting plastic member 4 being offset relative to the first shell 1. The abutting portion 51 is used to press the circuit board 2 tightly, thereby improving the problem of the circuit board 2 being bent and raised, and the abutting portion 51 is used to press the circuit board 2 tightly instead of the second fastener a2, which is conducive to reducing the number of the second fastener a2 while pressing the heat conducting plastic member 4. The heat of the second heat generating device 24 can be dissipated through the second shell 5, which is conducive to enhancing the heat dissipation effect of the second heat generating device 24.

[0090] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of simplicity; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power supply box, characterized in that: include: a first shell; A circuit board is provided in the first housing, and a first heating device is provided on a side of the circuit board facing the first housing; a first heat conducting member, disposed on a side of the first housing facing the circuit board; A heat-conductive plastic component is clamped between the first heat-conductive component and the circuit board, and the heat-conductive plastic component is at least partially located between the first heat-conductive component and the first heating element.

2. The power supply box according to claim 1, characterized in that: Along the direction of the spacing between the circuit board and the first housing, the projection of the first heat-conducting component is located within the projection of the heat-conductive plastic component.

3. The power supply box according to claim 2, characterized in that: A positioning mark is provided on a side of the first shell facing the circuit board, and the positioning mark is used to indicate the position of the heat-conductive plastic component relative to the first heat-conductive component.

4. The power supply box according to claim 1, characterized in that: The power box further includes a second shell, the second shell being connected to the first shell, the second shell being arranged at an angle to the first shell, and the second shell being provided with a supporting portion, the supporting portion supporting the side of the circuit board facing away from the first shell; The first housing is provided with a second nut column, the circuit board is provided with a second through hole, and the power box further includes a second fastener, the second fastener passes through the second through hole and is connected to the second nut column; Wherein, along a direction perpendicular to the spacing direction between the circuit board and the first shell, the supporting portion and the second nut column are respectively arranged adjacent to opposite sides of the thermally conductive plastic component.

5. The power supply box according to claim 1, characterized in that: The first shell is provided with a first nut column, the circuit board is provided with a first through hole, and the power box further includes a first fastener, which passes through the first through hole and is connected to the first nut column.

6. The power supply box according to claim 5, characterized in that: A boss is provided at the end of at least one of the first nut columns. The boss is inserted into the first through hole and is adapted to fit the first through hole.

7. The power supply box according to claim 5, characterized in that: The circuit board is rectangular and is provided with at least four first through holes, wherein the four first through holes are respectively arranged adjacent to the four corners of the circuit board; the first shell is provided with at least four first nut columns, and the power box includes at least four first fasteners, wherein the four first fasteners respectively pass through the four first through holes and are respectively connected to the four first nut columns.

8. The power supply box according to any one of claims 1 to 7, characterized in that: The power box further includes a second shell, the second shell is connected to the first shell, and the second shell is arranged at an angle to the first shell; The power supply box further includes a second heat conducting member, and the second heat conducting member is arranged on the second shell; A second heating element is further provided on a side of the circuit board facing away from the first housing, and the second heating element is in contact with the second heat conducting member.

9. The power supply box according to claim 8, characterized in that: The power supply box further includes a pressing plate, which is arranged on the second shell, and at least partially located on a side of the second heating element away from the second shell, and the pressing plate cooperates with the second heat-conducting member to clamp the second heating element; and / or, The first housing is provided with a first connection hole; and / or, The second shell is provided with a second connecting hole.

10. A power supply, characterized in that: include: A power supply box as claimed in any one of claims 1 to 9.

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