Cooling module and industrial power supply

Abstract

The present application provides a heat dissipation module and an industrial power supply. The above-mentioned heat dissipation module includes a heat-conducting shell and a heat dissipation component, the heat-conducting shell is formed with an air inlet, a heat dissipation cavity and an air outlet, the air inlet is connected with the air outlet through the heat dissipation cavity, the heat-conducting shell is used to be arranged in a chassis, the air inlet is used to be connected with the outside through the air inlet hole of the chassis, and the air outlet is used to be connected with the outside through the air outlet hole of the chassis; the heat dissipation component is arranged in the heat dissipation cavity and connected with the heat-conducting shell, and the heat dissipation component is used to dissipate heat from the heat-conducting shell. Since the air inlet of the chassis flows out of the air outlet through the heat dissipation cavity, the air inlet, the heat dissipation cavity and the air outlet form a heat dissipation duct of the heat-conducting shell, and the heat dissipation duct is directly connected with the air inlet and the air outlet respectively, so that the heat dissipation duct is separated from the components of the industrial power supply, and the components in the industrial power supply are prevented from being contaminated by chemical gases or dust in the use environment.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial production equipment, and in particular to a heat dissipation module and an industrial power supply. Background Art

[0002] The internal space of the chassis of the industrial power supply is used to disperse and fix various required components, such as the radiator, the positive copper plate of the power supply output and the negative copper plate of the power supply output, which are dispersed and fixed in the chassis, making the body area of ​​the chassis larger, and thus making the body area of ​​the industrial power supply larger.

[0003] In addition, to ensure the heat dissipation performance of the industrial power supply, the heat dissipation duct of the industrial power supply is to install a heat dissipation fan in the power supply, open a hole at one end of the chassis to introduce air into the hole at the other end to discharge heat. Since the use environment of the industrial power supply is seriously polluted by chemical gases, when the fan brings the airflow containing chemical gases into the chassis, the electronic components, circuit boards and wire connectors inside the chassis are easily oxidized, causing the industrial power supply to age quickly and become scrapped, which reduces the service life of the industrial power supply. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a heat dissipation module and an industrial power supply with a smaller body area and a longer service life.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A heat dissipation module, comprising:

[0007] A heat-conducting shell is installed, wherein the heat-conducting shell is formed with an air inlet, a heat dissipation cavity and an air outlet, wherein the air inlet is communicated with the air outlet through the heat dissipation cavity, the heat-conducting shell is used to be arranged in the chassis, the air inlet is used to communicate with the outside through the air inlet hole of the chassis, and the air outlet is used to communicate with the outside through the air outlet hole of the chassis;

[0008] A heat dissipation component is disposed in the heat dissipation cavity and connected to the mounting heat-conducting shell cover, and the heat dissipation component is used to dissipate heat from the mounting heat-conducting shell cover.

[0009] In one of the embodiments, the thermally conductive housing is mounted to be detachably connected to the chassis.

[0010] In one of the embodiments, the heat-conducting shell installation is provided with a through hole, and the through hole is used to pass a locking piece through it, so that the heat-conducting shell installation is installed on the chassis through the locking piece.

[0011] In one of the embodiments, the heat dissipation assembly includes a plurality of heat sinks, and the plurality of heat sinks are all located in the heat dissipation cavity and connected to the mounting heat-conducting shell cover, and the plurality of heat sinks are arranged at intervals.

[0012] In one of the embodiments, each of the heat sinks is disposed toward the air inlet.

[0013] In one embodiment, a plurality of the heat sinks are disposed adjacent to the air outlet.

[0014] An industrial power supply comprises a chassis and a heat dissipation module as described in any of the above embodiments, wherein a accommodating cavity, an air inlet and an air outlet are formed in the chassis, and the air inlet and the air outlet are both connected to the accommodating cavity; the heat-conducting shell cover is located in the accommodating cavity and connected to the chassis, the air inlet is connected to the outside through the air inlet, and the air outlet is connected to the outside through the air outlet.

[0015] In one embodiment, the industrial power supply further includes a positive conductive plate and a negative conductive plate, both of which are mounted on the mounting heat-conducting shell cover, the chassis is provided with a first avoidance hole and a second avoidance hole, the positive conductive plate is externally conductive through the first avoidance hole, and the negative conductive plate is externally conductive through the second avoidance hole.

[0016] In one embodiment, the industrial power supply also includes a protective mounting plate, which is located in the accommodating cavity and connected to the chassis. The protective mounting plate is provided with a first through hole and a second through hole, the first through hole is correspondingly connected to the first avoidance hole, and the second through hole is correspondingly connected to the second avoidance hole.

[0017] In one of the embodiments, the industrial power supply further includes a blower fan, which is disposed on the chassis, and an air inlet end of the blower fan is located at a position corresponding to the air inlet hole, and an air outlet end of the blower fan is disposed toward the heat dissipation cavity.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] 1. The above-mentioned heat dissipation module is arranged in the chassis. Since the heat-conducting shell is installed to form an air inlet, a heat dissipation cavity and an air outlet, the air inlet is connected with the air outlet through the heat dissipation cavity. Since the air inlet is used to communicate with the outside through the air inlet hole of the chassis, and the air outlet is used to communicate with the outside through the air outlet hole of the chassis, the air flow outside the chassis can flow into the heat dissipation cavity through the air inlet hole and the air inlet and contact the inner wall of the heat dissipation cavity for heat dissipation interaction, and the air flow after the heat dissipation interaction flows out of the chassis through the air outlet and the air outlet hole, so that the heat dissipation cavity can dissipate heat, and the heat-generating components of the industrial power supply such as the positive conductive plate and the negative conductive plate can be installed on the heat-conducting shell, so that the heat generated by the industrial power supply when working is dissipated by the heat-conducting shell, thereby improving the heat dissipation effect of the industrial power supply;

[0020] 2. Since the heat dissipation component is arranged in the heat dissipation cavity and connected to the heat-conducting shell, the heat dissipation module is used as a separate module for heat dissipation, and the heat-conducting shell is arranged in the chassis, so that the heat dissipation module has better compatibility and is also convenient for maintenance;

[0021] 3. Since the air inlet of the chassis flows out to the air outlet through the heat dissipation cavity, and the air inlet is connected to the outside through the air inlet hole of the chassis, and the air outlet is connected to the outside through the air outlet hole of the chassis, that is, the air inlet, the heat dissipation cavity and the air outlet form a heat dissipation duct for installing the heat conductive shell, and the heat dissipation duct is directly connected to the air inlet and the air outlet respectively, so that the heat dissipation duct is separated from the components of the industrial power supply, thereby preventing the components in the industrial power supply from being contaminated by chemical gases or dust in the use environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of the structure of an industrial power supply according to an embodiment;

[0024] Figure 2 for Figure 1 A perspective cutaway view of an industrial power supply is shown;

[0025] Figure 3 for Figure 1 An exploded schematic diagram of an industrial power supply is shown;

[0026] Figure 4 for Figure 3 A partial explosion diagram of the industrial power supply shown;

[0027] Figure 5 for Figure 3 The schematic diagram of the rectifier and filter module of the industrial power supply shown;

[0028] Figure 6 for Figure 5 The circuit diagram corresponding to the rectifier and filter module shown;

[0029] Figure 7 for Figure 5 A schematic diagram of the rectification and filtering module from another perspective;

[0030] Figure 8 for Figure 5 A schematic diagram of a first circuit board of the rectification and filtering module shown;

[0031] Fig. 9 for Figure 5 A schematic diagram of the second circuit board of the rectification and filtering module shown. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] The present application provides a heat dissipation module including a heat-conducting shell and a heat dissipation component, the heat-conducting shell being formed with an air inlet, a heat dissipation cavity and an air outlet, the air inlet being connected with the air outlet through the heat dissipation cavity, the heat-conducting shell being used to be arranged in a chassis, the air inlet being used to be connected with the outside through the air inlet hole of the chassis, and the air outlet being used to be connected with the outside through the air outlet hole of the chassis; the heat dissipation component is arranged in the heat dissipation cavity and connected with the heat-conducting shell, and the heat dissipation component is used to dissipate heat from the heat-conducting shell.

[0036] The above-mentioned heat dissipation module is arranged in the chassis. Since the heat-conducting shell is installed to form an air inlet, a heat dissipation cavity and an air outlet, the air inlet is connected to the air outlet through the heat dissipation cavity. Since the air inlet is used to communicate with the outside through the air inlet hole of the chassis, and the air outlet is used to communicate with the outside through the air outlet hole of the chassis, the air flow outside the chassis can flow into the heat dissipation cavity through the air inlet hole and the air inlet and contact the inner wall of the heat dissipation cavity for heat dissipation interaction, and the air flow after heat dissipation interaction flows out of the chassis through the air outlet and the air outlet hole, so that the heat dissipation cavity can dissipate heat, and the heat-generating components of the industrial power supply such as the positive conductive plate and the negative conductive plate can be installed on the heat-conducting shell, so that the heat-conducting shell can dissipate the heat generated when the industrial power supply is working, thereby improving the heat dissipation effect of the industrial power supply. Since the heat dissipation component is arranged in the heat dissipation cavity and connected to the heat-conducting shell, the heat dissipation module is used as a separate module for heat dissipation, and the heat-conducting shell is arranged in the chassis, so that the heat dissipation module has good compatibility and is also convenient for maintenance. Since the air inlet of the chassis flows out to the air outlet through the heat dissipation cavity, and the air inlet is connected with the outside through the air inlet hole of the chassis, and the air outlet is connected with the outside through the air outlet hole of the chassis, that is, the air inlet, the heat dissipation cavity and the air outlet form a heat dissipation duct on which the heat-conducting shell cover is installed, and the heat dissipation duct is directly connected with the air inlet and the air outlet respectively, so that the heat dissipation duct is separated from the components of the industrial power supply, thereby preventing the components in the industrial power supply from being contaminated by chemical gases or dust in the use environment.

[0037] See also Figure 1 , which is a schematic diagram of the structure of an industrial power supply 10 according to an embodiment.

[0038] See also Figure 2, an industrial power supply 10 of an embodiment includes a chassis 12 and a heat dissipation module 14. The chassis 12 is formed with a receiving cavity 12a, an air inlet 12b and an air outlet 12c, and the air inlet 12b and the air outlet 12c are both connected to the receiving cavity 12a. Further, the heat dissipation module 14 includes a heat-conducting shell 14a and a heat dissipation component 14b, and the heat-conducting shell 14a is formed with an air inlet 142, a heat dissipation cavity 144 and an air outlet 146, and the air inlet 142 is connected to the air outlet 146 through the heat dissipation cavity 144. The heat-conducting shell 14a is used to be arranged in the chassis 12, that is, the heat-conducting shell 14a is located in the receiving cavity 12a and connected to the chassis 12.

[0039] like Figure 2 and Figure 3 As shown, further, the air inlet 142 is connected to the outside of the chassis 12 through the air inlet hole 12b, and the air outlet 146 is connected to the outside of the chassis 12 through the air outlet hole 12c, so that the air flow outside the chassis 12 can flow into the air inlet 142 through the air inlet hole 12b, and the air flow in the heat dissipation cavity 144 can also flow out to the outside of the chassis 12 through the air outlet hole 12c. Further, the heat dissipation component 14b is arranged in the heat dissipation cavity and connected to the mounting heat-conducting shell 14a, and the heat dissipation component 14b is used to dissipate heat for the mounting heat-conducting shell 14a. In this embodiment, the components of the industrial power supply 10 that generate more heat during operation can be installed in the mounting heat-conducting shell 14a, so that the heat generated by the components installed in the mounting heat-conducting shell 14a can be quickly dissipated, thereby improving the heat dissipation efficiency of the industrial power supply 10.

[0040] The heat dissipation module 14 is arranged in the chassis 12. Due to the installation of the heat-conducting shell 14a, an air inlet 142, a heat dissipation cavity 144 and an air outlet 146 are formed. The air inlet 142 is connected with the air outlet 146 through the heat dissipation cavity 144. Since the air inlet 142 is used to communicate with the outside through the air inlet hole 12b of the chassis 12, and the air outlet 146 is used to communicate with the outside through the air outlet hole 12c of the chassis 12, the air flow outside the chassis 12 can flow into the heat dissipation cavity 144 through the air inlet hole 12b and the air inlet 142. The heat cavity 144 contacts the inner wall of the heat dissipation cavity 144 for heat dissipation interaction, and the air flow after heat dissipation interaction flows out of the outside of the chassis 12 through the air outlet 146 and the air outlet 12c, so that the heat dissipation cavity 144 can dissipate heat, and the components of the industrial power supply 10 that generate more heat, such as the positive conductive plate and the negative conductive plate, can be installed on the installation heat-conducting shell 14a, so that the installation heat-conducting shell 14a dissipates the heat generated when the industrial power supply 10 is working, thereby improving the heat dissipation effect of the industrial power supply 10. Since the heat dissipation component 14b is arranged in the heat dissipation cavity and connected to the installation heat-conducting shell 14a, the heat dissipation module 14 is used as a separate module for heat dissipation, and the installation heat-conducting shell 14a is arranged in the chassis 12, so that the heat dissipation module 14 has good compatibility and is also convenient for maintenance. Since the air inlet 142 of the chassis 12 flows out to the air outlet 146 through the heat dissipation cavity 144, and the air inlet 142 is connected to the outside through the air inlet hole 12b of the chassis 12, and the air outlet 146 is connected to the outside through the air outlet hole 12c of the chassis 12, that is, the air inlet 142, the heat dissipation cavity 144 and the air outlet 146 form a heat dissipation duct for installing the heat conductive shell 14a, and the heat dissipation duct is directly connected to the air inlet 142 and the air outlet 146 respectively. In this way, the heat dissipation duct is separated from the components of the industrial power supply 10, thereby preventing the components in the industrial power supply 10 from being contaminated by chemical gases or dust in the use environment.

[0041] like Figure 1 and Figure 2 As shown, in one embodiment, the industrial power supply 10 also includes a positive conductive plate 16 and a negative conductive plate 18, and the positive conductive plate 16 and the negative conductive plate 18 are both installed on the mounting heat-conducting shell 14a. The chassis 12 is provided with a first avoidance hole 12d and a second avoidance hole 12e, and the positive conductive plate 16 is externally connected to conduct electricity through the first avoidance hole 12d, and the negative conductive plate 18 is externally connected to conduct electricity through the second avoidance hole 12e, so that the industrial power supply 10 is reliably externally connected to conduct electricity. In this embodiment, the positive conductive plate 16 and the negative conductive plate 18 are both copper plates, so that the positive conductive plate 16 and the negative conductive plate 18 generate more heat when powered on. The positive conductive plate 16 and the negative conductive plate 18 are both installed on the mounting heat-conducting shell 14a to reliably dissipate the heat on the positive conductive plate 16 and the negative conductive plate 18, thereby improving the heat dissipation performance of the industrial power supply 10.

[0042] like Figure 2 and Figure 4 As shown, in one embodiment, the industrial power supply 10 further includes a protective mounting plate 22, which is located in the accommodating cavity 12a and connected to the chassis 12. The protective mounting plate 22 is provided with a first through hole 22a and a second through hole 22b, wherein the first through hole 22a is correspondingly connected to the first avoidance hole 12d, and the second through hole 22b is correspondingly connected to the second avoidance hole 12e, so that both the positive conductive plate 16 and the negative conductive plate 18 can be reliably connected to the outside for electrical conduction, thereby avoiding the problem of low installation reliability of the positive conductive plate 16 and the negative conductive plate 18, and at the same time, better avoiding the situation of leakage caused by contact between the positive conductive plate 16 or the negative conductive plate 18 and the chassis 12. In this embodiment, the protective mounting plate 22 is an insulating plate, which avoids the situation of leakage of the positive conductive plate 16 and the negative conductive plate 18. In order to better connect the protective mounting plate 22 to the chassis 12, further, the protective mounting plate 22 is provided with a first flange 221 and a second flange 222, the first through hole 22a is provided in the first flange 221, the second through hole 22b is provided in the second flange 222, the first flange 221 is located in the first avoidance hole 12d and abuts against the chassis 12, the second flange 222 is located in the second avoidance hole 12e and abuts against the chassis 12, so that the protective mounting plate 22 is better installed and fixed to the chassis 12. Furthermore, the industrial power supply 10 also includes a fixing member, the protective mounting plate 22 is provided with a through hole, the chassis 12 is provided with a threaded hole, and the fixing member is respectively penetrated in the through hole and the threaded hole, so that the protective mounting plate 22 is better installed and fixed to the chassis 12. In this embodiment, the fixing member can be a screw or a screw.

[0043] like Figure 2 and Figure 4 As shown, in one embodiment, the heat-conducting shell 14a is used to be detachably connected to the chassis 12, so as to regularly disassemble and maintain the heat dissipation module 14, thereby improving the convenience of use of the industrial power supply 10. In one embodiment, the heat-conducting shell 14a is provided with a through hole, and the through hole is used to penetrate a locking member, so that the heat-conducting shell 14a is installed on the chassis 12 through the locking member. In this embodiment, the locking member can be a screw or a screw, and the heat-conducting shell 14a is installed on the inner wall of the accommodating cavity 12a through the locking member.

[0044] In order to ensure that the air inlet 142 and the air inlet hole 12b are reliably connected to guide the air, Figure 2 and Figure 4As shown, further, the heat-conducting shell cover 14a is installed to fit and abut against the inner wall of the accommodating cavity 12a, so that the heat-conducting shell cover 14a is tightly fixedly connected to the chassis 12. In one embodiment, the heat-conducting shell cover 14a includes a shell cover body 143 and a close edge 145, the shell cover body is provided with a first fitting surface and a second fitting surface, the air inlet 142 is formed on the first fitting surface, the air outlet 146 is formed on the second fitting surface, and the first fitting surface and the second fitting surface are both used to fit and abut against the inner wall of the chassis 12. The close edge is convexly arranged on the edge of the shell cover body, and the close edge is respectively arranged adjacent to the first fitting surface and the second fitting surface, so that the heat-conducting shell cover 14a is tightly fixedly connected to the chassis 12. In this embodiment, the second fitting surface is fixedly connected to the chassis 12 through a protective mounting plate. The protective mounting plate is provided with a wind hole, and the wind outlet is connected to the wind outlet through the wind hole. Furthermore, the industrial power supply 10 further includes a sealing strip, which is disposed between the close edge and the inner wall of the accommodating cavity 12a, further improving the tightness of the connection between the heat-conducting shell 14a and the chassis 12. Furthermore, a positioning groove is formed in the chassis 12, the sealing strip is disposed in the positioning groove, and the sealing strip protrudes from the inner wall of the chassis 12, so that the sealing strip is better positioned on the chassis 12, thereby improving the reliability of the connection between the heat-conducting shell 14a and the chassis 12.

[0045] like Figure 2 As shown, in one embodiment, the heat dissipation component 14b includes a plurality of heat sinks, and the plurality of heat sinks are all located in the heat dissipation cavity 144 and connected to the heat-conducting shell 14a. The plurality of heat sinks are arranged at intervals, so that the heat dissipation component 14b dissipates the heat of the heat-conducting shell 14a. In one embodiment, each heat sink is arranged on the side of the heat sink facing the air inlet 142, so that the heat dissipation component 14b can better dissipate the heat of the heat-conducting shell 14a, thereby improving the heat dissipation effect of the heat dissipation component 14b. In one embodiment, the plurality of heat sinks are arranged adjacent to the air outlet 146, so that the air flow quickly flows out through the air outlet 146 after contacting the heat sink, thereby improving the heat dissipation efficiency of the heat dissipation component 14b.

[0046] like Figure 2As shown, in one embodiment, the industrial power supply 10 further includes a blast fan 24, which is disposed on the chassis 12, and the air inlet end of the blast fan 24 is at a position corresponding to the air inlet hole 12b, and the air outlet end of the blast fan is disposed toward the heat dissipation cavity 144, so that the air flow outside the chassis 12 can quickly flow into the chassis 12 through the blast fan, thereby improving the heat dissipation effect of the industrial power supply 10. In this embodiment, the blast fan is located in the heat dissipation cavity 144 and is connected to the chassis 12, so that the blast fan is disposed on the chassis 12, and at the same time, the heat dissipation cavity 144 is better ventilated and heat dissipated.

[0047] like Figure 2 As shown, in one embodiment, the chassis 12 includes a box body 12f and a cover plate 12h, the box body 12f is provided with a mounting hole 121, the cover plate is located in the mounting hole and connected to the box body, and the blower fan is arranged on the cover plate to better protect the blower fan, so that the industrial power supply 10 has better safety in use. The accommodating cavity 12a and the air outlet 12c are provided in the box body, and the air inlet 12b is provided in the cover plate, so that the accommodating cavity 12a, the air inlet 12b and the air outlet 12c are formed in the chassis 12. However, regular maintenance during use, such as maintenance of the fan, requires the whole machine to be removed from the production line, the box body is opened for maintenance and repair, and then it is put back for use. The entire maintenance process is cumbersome and time-consuming and labor-intensive, making the industrial power supply 10 less convenient to use. In order to improve the convenience of use of the industrial power supply 10 and solve the problem that the entire maintenance process is complicated, time-consuming and labor-intensive, the cover plate is detachably connected to the box body, and the cooling fan is detachably connected to the cover plate. When disassembling and assembling the blower fan, such as during maintenance, the cover plate can be removed first, and then the blower fan can be disassembled and assembled without opening the box body, which improves the convenience of use of the industrial power supply 10 and the maintenance efficiency of the blower fan, and solves the problem that the entire maintenance process is complicated, time-consuming and labor-intensive. See also Figure 4 In this embodiment, the chassis 12 further includes a first locking screw (not shown), the cover 12h is provided with a mounting hole 12h1, the case 12f is provided with a locking hole 12f1, and the locking screws are respectively passed through the mounting hole and the locking hole, so that the cover can be detachably connected to the case. It can be understood that in other embodiments, the cover is not limited to being connected to the case by locking screws. For example, the cover is snap-connected to the case. Furthermore, the chassis 12 further includes a second locking screw (not shown), the blower fan 24 is provided with a connecting hole 24a, and the cover is provided with a screw hole (not shown), and the second locking screw is respectively passed through the connecting hole and the screw hole, so that the cooling fan can be detachably connected to the cover.

[0048] The chassis 12 of the conventional industrial power supply 10 is mostly made of metal iron plates that are bent, fastened, and welded, or made of PP or PVC plastic plates that are spliced ​​and welded. The bottom frame and the edge of the cover of the chassis 12 are easily bent and cracked, causing chemical gas and dust to enter the chassis 12, causing the circuit board and electronic components to age and damage faster, resulting in a shorter service life of the industrial power supply 10. To avoid the problem of a shorter service life of the industrial power supply 10, such as Figure 2 and Figure 3 As shown, further, the box body 12f includes a base 110a and a hood 110b, the accommodating cavity 12a and the air outlet 146 are both formed on the base 110a, the mounting hole is opened on the base 110a, and the hood 110b is covered on the base 110a. In order to make the hood 110b better cover the base 110a, further, the base 110a is provided with a peripheral edge 1102, which is arranged around the accommodating cavity 12a, and the isolation heat conductive member 100b is located in the accommodating cavity 12a and abuts against part of the peripheral edge. The hood 110b includes a hood body 111 and an edge seal corner portion 113, the edge seal corner portion 113 is arranged on the hood body 111, and the edge seal corner portion 113 is used to clamp the peripheral edge 1102, so that the hood 110b and the base 110a can be detachably connected, so as to maintain the industrial power supply 10. The edge seal corner portion 113 is snap-fitted with the surrounding edge 1102, so that the connection between the hood 110b and the base 110a has better sealing performance. In this embodiment, the blower fan 24 is detachably connected to the base 110a, and the mounting hole 105 is opened in the base 110a, that is, the blower fan 24 is externally embedded in the mounting hole 105 of the base 110a, and the fixing plate 124 is detachably connected to the box body 12f, and the fixing plate 124 is covered on the mounting hole 105, and the cover body 122 is covered on the fixing plate 124, so that the blower fan 24 can be disassembled and maintained without opening the hood, thereby improving the convenience of use of the industrial power supply 10.

[0049] In order to reliably connect and position the hood 110b and the base 110a, Figure 3As shown, further, the chassis 12 also includes a locking member (not shown), the cover body 111 is provided with a through hole 111a, the surrounding edge 1102 is provided with a screw hole 1103, and the locking member is respectively inserted into the through hole and the screw hole, so that the cover 110b and the base 110a are reliably connected and positioned, and the sealing performance of the connection between the cover 110b and the base 110a is improved. Since the edge seal corner portion 113 is clamped on the surrounding edge 1102, a box body 12f with a circular structure is formed, the mechanical structural strength of the box body 12f is increased, and the effective sealing between the cover 110b and the base 110a is achieved. Compared with the traditional chassis 12, the industrial power supply 10 of the present application uses fewer screws, and the cover body is reliably fixed to the base 110a, thereby improving the disassembly and assembly speed of the chassis 12, thereby improving the convenience of use of the industrial power supply 10.

[0050] Furthermore, a sealing strip (not shown) is provided at the edge of the isolating heat-conducting member 100b adjacent to the cover body, and the inner wall of the cover 110b elastically abuts against the sealing strip, so that the cover 110b is not only sealed and connected to the base 110a, but also sealed and abutted against the sealing strip, thereby improving the sealing performance of the connection between the various components of the chassis 12, and realizing the connection between the cover 110b and the base 110a. In this embodiment, the sealing strip is a PVC strip or a silicone rubber strip.

[0051] like Figure 3 As shown, the industrial power supply 10 further includes a rectifier and filter module 26, which is located in the accommodating cavity 12a and connected to the box body, and the rectifier and filter module 26 is electrically connected to the positive conductive plate 16 and the negative conductive plate 18 respectively, for rectifying and filtering the access current of the power supply. Figure 5 Further, the rectifier filter module 26 includes a fixing seat 100, a line board assembly 200 and a capacitor assembly 300. The line board assembly 200 includes two first circuit boards 210 and a second circuit board 220 arranged opposite to each other. The first circuit board 210 and the second circuit board 220 are both connected to the fixing seat 100, wherein the first circuit board 210 and the second circuit board 220 have a plurality of conductive circuits. Please refer to Figure 6The capacitor assembly 300 includes a first non-polar capacitor 310, a second non-polar capacitor 320, a third non-polar capacitor 330 and a first bridge conductive member 340. The first non-polar capacitor 310, the second non-polar capacitor 320 and the third non-polar capacitor 330 are located between the first circuit board 210 and the second circuit board 220. The first non-polar capacitor 310, the second non-polar capacitor 320 and the third non-polar capacitor 330 are connected to the first circuit board 210 and the second circuit board 220 respectively, so that the first end of the first non-polar capacitor 310 is electrically connected to the first end of the second non-polar capacitor 320, the second end of the second non-polar capacitor 320 is electrically connected to the second end of the third non-polar capacitor 330, and the two ends of the first non-polar capacitor 310 are respectively used to connect to an external AC power supply. The first end of the first bridge conductive member 340 is connected to the first end of the third non-polar capacitor 330, and the second end of the first bridge conductive member 340 is connected to the second end of the first non-polar capacitor 310. It can be understood that in other embodiments, the fixing base can be omitted, that is, the line board assembly 200 and the capacitor assembly 300 can be directly fixedly connected to the base.

[0052] In this embodiment, the first non-polar capacitor is used as a DC filter capacitor, and the second non-polar capacitor and the third non-polar capacitor form a half-bridge circuit, replacing a half-bridge in the full-bridge rectifier circuit, that is, the second non-polar capacitor and the third non-polar capacitor replace two electronic switch tubes on a branch of the full-bridge circuit, for example, the electronic switch tube is an insulated gate bipolar transistor (IGBT) or a metal-oxide-semiconductor field-effect transistor (MOSFET). The non-polar capacitors are connected through the conductive circuit on the circuit board, and the first circuit board 210 and the second circuit board 220 are electrically connected through the first bridge-type conductive member 340, so that the electrical connection between the non-polar capacitors is simple, and there is no need to connect them through wires, so that the structure of the rectifier and filter module is simple. At the same time, when the circuit is disassembled, only the circuit board needs to be replaced, which improves the convenience of disassembly and assembly. Moreover, the use of the circuit board is also convenient for batch and mechanized production of the rectifier and filter module, and improves the automation level of the production and manufacturing of the rectifier and filter module. Among them, the conductive circuit is a copper foil circuit on the circuit board, and the ends of each non-polar capacitor on the same circuit board are connected through the conductive circuit on the circuit board. For example, there is a conductive circuit on the first circuit board 210 that connects the first end of the first non-polar capacitor 310 with the first end of the second non-polar capacitor 320, and there is a conductive circuit on the second circuit board 220 that connects the second end of the second non-polar capacitor 320 with the second end of the third non-polar capacitor 330.

[0053] In another embodiment, the first nonpolar capacitor 310, the second nonpolar capacitor 320 and the third nonpolar capacitor 330 are nonpolar capacitors with equal capacitance, so that the first nonpolar capacitor 310, the second nonpolar capacitor 320 and the third nonpolar capacitor 330 are connected in series. No matter which end of the nonpolar capacitor is connected to the positive and negative poles of the external AC power supply, the other two automatically form a half-bridge circuit, that is, when the two ends of one of the nonpolar capacitors are respectively connected to the positive and negative poles of the external AC power supply, the other two nonpolar capacitors are connected in series, and the nonpolar capacitor connected to the external AC power supply is connected in parallel with the other two series-connected nonpolar capacitors. The non-polar capacitor connected to the external AC power supply is used as a filter capacitor, and the two non-polar capacitors connected in series form a half-bridge module. For example, when the second non-polar capacitor 320 located in the middle is connected to the external AC power supply, that is, the second non-polar capacitor 320 is used as a filter capacitor, through the first bridge conductive member 340, the conductive circuit on the first circuit board 210 and the conductive circuit on the second circuit board 220, the first non-polar capacitor 310 and the third non-polar capacitor 330 located on both sides of the second non-polar capacitor 320 are connected in series to form a half-bridge circuit. At this time, the first non-polar capacitor 310 and the third non-polar capacitor 330 are half-bridge capacitors.

[0054] In one embodiment, see Figure 7The line board assembly 200 also includes a first voltage-dividing resistor 240 and a second voltage-dividing resistor 250. The first voltage-dividing resistor 240 and the second voltage-dividing resistor 250 are both welded on the first circuit board 210, so that the first end of the first voltage-dividing resistor 240 is electrically connected to the first end of the third stepless capacitor 330, the second end of the first voltage-dividing resistor 240 is connected to the first end of the second voltage-dividing resistor 250, and the second end of the second voltage-dividing resistor 250 is electrically connected to the first end of the second stepless capacitor 320. In this embodiment, the first end of the first voltage-dividing resistor 240 is connected to the first end of the third non-polar capacitor 330 through the conductive circuit on the first circuit board 210, and the second end of the first voltage-dividing resistor 240 is also connected to the first end of the second voltage-dividing resistor 250 through the conductive circuit on the first circuit board 210, and the second end of the second voltage-dividing resistor 250 is also connected to the first end of the second non-polar capacitor 320 through the conductive circuit on the first circuit board 210, so that the first voltage-dividing resistor 240 and the second voltage-dividing resistor 250 are connected in series, and are connected in series between the first end of the third non-polar capacitor 330 and the first end of the second non-polar capacitor 320. In this way, after power is turned on, the first non-polar capacitor 310 acts as a filter capacitor, and the voltages on the second non-polar capacitor 320 and the third non-polar capacitor 330 are loaded on the first voltage-dividing resistor 240 and the second voltage-dividing resistor 250. At this time, the second end of the first voltage-dividing resistor 240 or the first end of the second voltage-dividing resistor 250 is used to output the divided voltage on the second non-polar capacitor 320 and the third non-polar capacitor 330 to obtain the corresponding divided voltage.

[0055] Further, the capacitance of the second non-polar capacitor 320 is equal to the capacitance of the third non-polar capacitor 330, the resistance of the first voltage-dividing resistor 240 is equal to the resistance of the second voltage-dividing resistor 250, and the second end of the first voltage-dividing resistor 240 is used to output the midpoint voltage. In this embodiment, the capacitance of the second non-polar capacitor 320 is equal to the third non-polar capacitor 330, which is convenient for balancing the voltage output by the external AC power supply and plays a role in replacing two switch tubes of a rectifier bridge arm. The resistance of the first voltage-dividing resistor 240 is equal to the resistance of the second voltage-dividing resistor 250, so that the voltage division on the first voltage-dividing resistor 240 and the second voltage-dividing resistor 250 is more balanced, so that the balance of the midpoint voltage output by the second end of the first voltage-dividing resistor 240 is improved, which is convenient for outputting the midpoint voltage with balanced voltage.

[0056] Further, see Figure 7, the line board assembly 200 also includes a second bridge conductive member 260, the first end of the second bridge conductive member 260 is electrically connected to the second end of the first voltage-dividing resistor 240, the second end of the second bridge conductive member 260 is connected to the second circuit board 220, and the second bridge conductive member 260 is used to output the detection voltage. In this embodiment, the second bridge conductive member 260 is connected to the first voltage-dividing resistor 240, and the second bridge conductive member 260 serves as a lead wire of the second end of the first voltage-dividing resistor 240, so as to facilitate the extraction of the divided voltage on the second non-polar capacitor 320 and the third non-polar capacitor 330, so as to facilitate the clamping of the detection device, that is, the second bridge conductive member 260 provides a clamping position for the second end of the first voltage-dividing resistor 240 for the divided voltage.

[0057] For further information, please also refer to Figure 5 and Figure 7 , the first circuit board 210 is provided with a first bridge-type through hole 212, the second circuit board 220 is provided with a second bridge-type through hole 222, the first end of the second bridge-type conductive member 260 is inserted into the first bridge-type through hole 212, and the second end of the second bridge-type conductive member 260 is inserted into the second bridge-type through hole 222. In this embodiment, the first bridge-type through hole 212 corresponds to a connection point on the first circuit board 210, and the second bridge-type through hole 222 corresponds to a connection point on the second circuit board 220. For example, pads are provided at the locations of the first bridge-type through hole 212 and the second bridge-type through hole 222, so as to electrically connect the ends of each non-polar capacitor to the conductive circuit on the circuit board. Moreover, the first bridge-type through hole 212 passes through the first circuit board 210, and the second bridge-type through hole 222 passes through the second circuit board 220, which facilitates the installation and connection of the ends of each non-polar capacitor on the circuit board, realizes the detachable connection between each circuit board and each non-polar capacitor, and improves the convenience of disassembly and assembly of the rectifier and filter module.

[0058] In one of the embodiments, please also refer to Figure 5 and Figure 8The first circuit board 210 includes a first board 214, a first conductive trace 216, a second conductive trace 218 and a third conductive trace 211. The first conductive trace 216, the second conductive trace 218 and the third conductive trace 211 are all arranged on the first board 214. The first board 214 has one or two first accommodating spaces 2142 and two second accommodating spaces 2144. The first bridge through hole 212 is arranged corresponding to the first conductive trace 216, the two first accommodating spaces 2142 are arranged corresponding to the second conductive trace 218, the two second accommodating spaces 2144 are arranged corresponding to the third conductive trace 211, and the first The first end of the second bridge conductive member 260 is inserted into the first bridge through hole 212 and connected to the first conductive trace 216. The first end of the first non-polar capacitor 310 and the first end of the second non-polar capacitor 320 are respectively located in a first accommodating space 2142 and connected to the second conductive trace 218. The first end of the third non-polar capacitor 330 and the first end of the first bridge conductive member 340 are respectively located in a second accommodating space 2144 and connected to the third conductive trace 211. The first conductive trace 216 is also connected to the second end of the first voltage-dividing resistor 240 and the first end of the second voltage-dividing resistor 250. Please refer to Fig. 9The second circuit board 220 includes a second board body 224, a fourth conductive trace 226 and a fifth conductive trace 228. The second board body 224 has two third accommodating spaces 2242 and two fourth accommodating spaces 2244. The two third accommodating spaces 2242 correspond to the fourth conductive trace 226, and the two fourth accommodating spaces 2244 correspond to the fifth conductive trace 228. The second end of the first bridge conductive member 340 and the second end of the first non-polar capacitor 310 are respectively located in one of the third accommodating spaces 2242 and connected to the fourth conductive trace 226. The second end of the second non-polar capacitor 320 and the second end of the third non-polar capacitor 330 are respectively located in one of the fourth accommodating spaces 2244 and connected to the fifth conductive trace 228. In this embodiment, the first conductive trace 216, the second conductive trace 218, the third conductive trace 211, the fourth conductive trace 226 and the fifth conductive trace 228 are conductive traces on the corresponding circuit board, the first bridge-type through hole exposes part of the copper foil of the first conductive trace 216, which is convenient for electrical connection with the second bridge-type conductive member, and each accommodating space exposes part of the copper foil of the corresponding conductive trace, which is convenient for the end of each non-polar capacitor to be electrically connected with the corresponding conductive trace, so as to form a half-bridge filter circuit to replace a half-bridge in the traditional filter full-bridge rectifier circuit formed by using an IGBT tube or a MOS tube, that is, to replace a branch in the filter full-bridge rectifier circuit. In another embodiment, each accommodating space is a through hole that penetrates the corresponding circuit board, so that the end of the non-polar capacitor and the end of each bridge-type conductive member can be inserted therein.

[0059] In one embodiment, see Figure 5 and Figure 6, the line board assembly 200 also includes a plurality of tin-leaking conductive parts 230, each of which is connected to a conductive circuit. In the present embodiment, since each non-polar capacitor is an electrolytic capacitor with a large capacitance value, the current on the conductive circuit of each circuit board is relatively large after power-on. In order to allow the circuit board to withstand large currents, solder paste is attached to the conductive circuit by a tin-leaking process, so that in addition to the conductive circuit, there is also a tin-leaking conductive part between the ends connecting the non-polar capacitors, that is, the tin-leaking conductive part is arranged in a one-to-one correspondence with the conductive circuit. In this way, the conductive resistance between the non-polar capacitors on the same circuit board increases, which facilitates the conductive circuit on the circuit board to withstand large currents, ensures the normal operation of each circuit board, reduces the probability of damage to the circuit board, and prolongs the service life of the rectifier and filter module. In another embodiment, the tin-leaking conductive part is metal tin, which, after being connected to the conductive circuit, also has the function of dissipating the heat generated by the large current on the conductive circuit to improve the heat dissipation performance of the circuit board. Among them, each of the tin-leaking conductive parts 230 connects the corresponding accommodating grooves on the conductive trace, that is, on the same conductive trace, the tin-leaking conductive part 230 and the copper foil exposed in the corresponding accommodating spaces are in contact, which is convenient for increasing the resistance between the ends of the non-polar capacitors on the same conductive trace.

[0060] In one of the embodiments, please also refer to Figure 5 and Figure 7 , the rectifier filter module 26 also includes a first mounting bracket 400 and a second mounting bracket 500, both of which are connected to the fixing seat 100. The first mounting bracket 400 is respectively connected to the first end of each non-polar capacitor and the first circuit board 210, and the second mounting bracket 500 is respectively connected to the second end of each non-polar capacitor and the second circuit board 220. In this embodiment, the first mounting bracket 400 and the second mounting bracket 500 are arranged opposite to each other, the first mounting bracket 400 serves as a support seat for the first circuit board 210 on the fixing seat 100, and the second mounting bracket 500 serves as a support seat for the second circuit board 220 on the fixing seat 100, so as to facilitate the support of the first circuit board 210 and the second circuit board 220, thereby facilitating the support of each non-polar capacitor and reducing the contact between each non-polar capacitor and the fixing seat 100.

[0061] Furthermore, the first mounting bracket is provided with a plurality of first mounting holes, the second mounting bracket is provided with a plurality of second mounting holes, the first end of each of the stepless capacitors is inserted into one of the first mounting holes, and the second end of each of the stepless capacitors is inserted into one of the first mounting holes. In this embodiment, each stepless capacitor is located between the first circuit board and the second circuit board, the first circuit board and the second circuit board clamp each stepless capacitor, each of the first mounting holes accommodates a first end of a stepless capacitor, and each of the second mounting holes accommodates a second end of a stepless capacitor, so that each stepless capacitor is conveniently mounted on the circuit board, and a detachable connection between each stepless capacitor and the circuit board is realized, so that the disassembly and assembly of each circuit board and the stepless capacitor is convenient, and the maintenance convenience of the rectifier and filter module is improved.

[0062] Further, see Figure 7 , the first mounting bracket 400 is provided with a waist-shaped hole 402, and the rectifier and filter module also includes a positioning pin, the positioning pin is inserted into the waist-shaped hole 402 and connected to the fixing seat 100, and the waist-shaped hole 402 is used to adjust the distance between the positioning pin and the first mounting bracket 400. In this embodiment, the first mounting bracket 400 installs the first circuit board 210 on the fixing seat 100, and the positioning pin is inserted into the waist-shaped hole 402, and the positioning pin is also connected to the fixing seat 100, so as to facilitate the installation of the first mounting bracket 400 on the fixing seat 100. The waist-shaped hole 402 is a long strip through hole. When the positioning pin is inserted therein, by adjusting the position of the positioning pin in the waist-shaped hole 402, it is convenient to move the position of the first mounting bracket 400 on the fixing seat 100, that is, adjust the distance between the first mounting bracket 400 and the second mounting, so as to be suitable for the installation of non-polar capacitors of different specifications, and improve the installation adaptability of the rectifier and filter module.

[0063] Compared with the prior art, the present invention has at least the following advantages:

[0064] 1. The heat dissipation module 14 is arranged in the chassis. Due to the installation of the heat-conducting shell 14a, an air inlet 142, a heat dissipation cavity 144 and an air outlet 146 are formed. The air inlet 142 is connected with the air outlet 146 through the heat dissipation cavity 144. Since the air inlet 142 is used to communicate with the outside through the air inlet hole 12b of the chassis, and the air outlet 146 is used to communicate with the outside through the air outlet hole 12c of the chassis, the air flow outside the chassis can flow into the heat dissipation cavity 146 through the air inlet hole 12b and the air inlet 142. The air in the cavity 144 contacts the inner wall of the heat dissipation cavity 144 for heat dissipation interaction, and the air flow after the heat dissipation interaction flows out of the outside of the chassis through the air outlet 146 and the air outlet 12c, so that the heat dissipation cavity 144 can dissipate heat, and the heat-generating components of the industrial power supply such as the positive conductive plate 16 and the negative conductive plate 18 can be installed on the heat-conducting shell 14a, so that the heat-conducting shell 14a can dissipate the heat generated by the industrial power supply when it is working, thereby improving the heat dissipation effect of the industrial power supply.

[0065] 2. Since the heat dissipation component 14b is arranged in the heat dissipation cavity and connected to the heat-conducting shell 14a, the heat dissipation module 14 is used as a separate module for heat dissipation, and the heat-conducting shell 14a is arranged in the chassis, so that the heat dissipation module 14 has good compatibility and is also convenient for maintenance;

[0066] 3. Since the air inlet 142 of the chassis flows out to the air outlet 146 through the heat dissipation cavity 144, and the air inlet 142 is connected to the outside through the air inlet hole 12b of the chassis, and the air outlet 146 is connected to the outside through the air outlet hole 12c of the chassis, that is, the air inlet 142, the heat dissipation cavity 144 and the air outlet 146 form a heat dissipation duct for installing the heat-conducting shell cover 14a, and the heat dissipation duct is directly connected to the air inlet 142 and the air outlet 146 respectively. In this way, the heat dissipation duct is separated from the components of the industrial power supply, thereby preventing the components in the industrial power supply from being contaminated by chemical gases or dust in the use environment.

[0067] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An industrial power supply, characterized in that: The invention comprises a chassis, a heat dissipation module and a blower fan, wherein the chassis comprises a box body and a cover plate, wherein the box body is provided with a mounting hole, wherein the cover plate is located in the mounting hole and is detachably connected to the box body, wherein the blower fan is arranged on the cover plate, wherein the box body is provided with a receiving cavity and an air outlet hole, wherein the cover plate is provided with an air inlet hole, wherein both the air inlet hole and the air outlet hole are communicated with the receiving cavity; The heat dissipation module comprises a heat-conducting shell and a heat dissipation assembly; the heat-conducting shell is formed with an air inlet, a heat dissipation cavity and an air outlet, the air inlet is connected with the air outlet through the heat dissipation cavity, the heat-conducting shell is located in the accommodating cavity and connected to the chassis, the air inlet is connected with the outside through the air inlet hole, and the air outlet is connected with the outside through the air outlet hole; the air inlet end of the blower fan corresponds to the position of the air inlet hole, and the air outlet end of the blower fan is arranged toward the heat dissipation cavity; The heat dissipation component is disposed in the heat dissipation cavity and connected to the mounting heat-conducting shell, and the heat dissipation component is used to dissipate heat from the mounting heat-conducting shell; The industrial power supply also includes a positive conductive plate, a negative conductive plate and a rectifier and filter module. The positive conductive plate and the negative conductive plate are both installed on the mounting heat-conducting shell cover. The chassis is provided with a first avoidance hole and a second avoidance hole. The positive conductive plate is externally conductive through the first avoidance hole, and the negative conductive plate is externally conductive through the second avoidance hole. The rectifier and filter module is located in the accommodating cavity and connected to the box body, and the rectifier and filter module is electrically connected to the positive conductive plate and the negative conductive plate, respectively, for rectifying and filtering the access current of the power supply. The rectifier and filter module includes a fixing seat, a line board assembly and a capacitor assembly. The line board assembly includes two first circuit boards and a second circuit board arranged opposite to each other. The first circuit board and the second circuit board are both connected to the fixing seat. The first circuit board and the second circuit board have multiple conductive circuits. The capacitor assembly includes a first non-polar capacitor, a second non-polar capacitor, a third non-polar capacitor and a first bridge-type conductive member. The first non-polar capacitor, the second non-polar capacitor and the third non-polar capacitor are located between the first circuit board and the second circuit board. The first non-polar capacitor, the second non-polar capacitor and the third non-polar capacitor are respectively connected to the first circuit board and the second circuit board. The second end of the second non-polar capacitor is electrically connected to the second end of the third non-polar capacitor. The two ends of the first non-polar capacitor are respectively used to connect to an external AC power supply; the first end of the first bridge-type conductive member is connected to the first end of the third non-polar capacitor, and the second end of the first bridge-type conductive member is connected to the second end of the first non-polar capacitor; the line board assembly also includes a plurality of tin-leaking conductive members, each of which is connected to one of the conductive circuits.

2. The industrial power supply according to claim 1, characterized in that: The heat-conducting housing cover is detachably connected to the chassis.

3. The industrial power supply according to claim 2, characterized in that: The heat-conducting shell is provided with a through hole, and the through hole is used to pass a locking piece, so that the heat-conducting shell is installed on the chassis through the locking piece.

4. The industrial power supply according to claim 1, characterized in that: The heat dissipation assembly includes a plurality of heat dissipation fins, which are all located in the heat dissipation cavity and connected to the mounting heat-conducting shell cover, and the plurality of heat dissipation fins are arranged at intervals.

5. The industrial power supply according to claim 4, characterized in that: Each of the heat sinks is arranged toward the air inlet.

6. The industrial power supply according to claim 4, characterized in that: A plurality of heat sinks are disposed adjacent to the air outlet.

7. The industrial power supply according to claim 1, characterized in that: It also includes a protective mounting plate, which is located in the accommodating cavity and connected to the chassis. The protective mounting plate is provided with a first through hole and a second through hole. The first through hole is correspondingly connected to the first avoidance hole, and the second through hole is correspondingly connected to the second avoidance hole.

8. The industrial power supply according to claim 7, characterized in that: The chassis also includes a first locking screw, the cover plate is provided with a mounting through hole, the box body is provided with a locking hole, and the locking screw is respectively inserted into the mounting through hole and the locking hole.

9. The industrial power supply according to claim 7, characterized in that: The box body comprises a base and a hood, the accommodating cavity and the air outlet are both formed on the base, the mounting hole is arranged on the base, and the hood cover is arranged on the base.

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