Industrial network switch

Abstract

According to the industrial network switch, the top cover, the bottom cover and the two side shells are arranged to form an accommodating space for mounting a circuit board assembly, the number of parts is reduced, the connection steps during assembly are also reduced, the structure is more compact, and the cost is reduced. The interfaces of the power supply circuit board and the interface circuit board in the accommodating space have corresponding opening positions and are matched with each other, the assembly precision is higher, a heat dissipation structure is arranged, the use temperature range can be adjusted, the temperature control device is suitable for complex environments such as a plateau environment, and the temperature control effect can be enhanced under the condition of low air pressure. The industrial network switch effectively solves the problems that in the prior art, an industrial network switch is numerous in parts, the assembly error is large, and the protection performance cannot meet the requirement.

Description

Technical Field

[0001] The present application relates to the technical field of industrial network switching, and in particular to an industrial network switch. Background Art

[0002] Industrial network switches are widely used. In terms of industry applications, they are mainly used in: coal mine safety, rail transportation, factory automation, water treatment systems, urban security, etc. Compared with ordinary network switches, industrial network switches have higher requirements on various attributes.

[0003] The industrial network switches in the prior art have complex functions, complex structures, many parts, and are difficult to assemble. Due to the large number of parts, the cumulative error of factory assembly is large, the protection performance is not satisfactory, and it cannot adapt to complex environments. Summary of the invention

[0004] The present application provides an industrial network switch to solve the problem in the prior art that an industrial network switch has many components, large assembly errors, and protection performance that does not meet requirements.

[0005] The present application provides an industrial network switch, including a shell assembly and a circuit board assembly, wherein the shell assembly includes a top cover, a bottom cover and two side shells that enclose a storage space, wherein the two side shells are L-shaped plates to form a square storage space, and a heat dissipation structure is provided on the side shells, wherein the two side shells are fixedly connected by a first fastener, and the top cover and the bottom cover are fixedly connected to each side shell by a second fastener; the top cover is provided with a first opening, and at least one side shell is provided with a second opening; and at least a power supply circuit board and an interface circuit board are provided in the storage space, and a connector is provided between the power supply circuit board and the interface circuit board for fixing, the power supply circuit board is provided with a plurality of first interfaces that are adapted to the first opening, and the interface circuit board is provided with a plurality of second interfaces that are adapted to the second opening.

[0006] According to some embodiments of the present application, the heat dissipation structure and the second opening are respectively disposed on different sides of the side housing, and the heat dissipation structures of the two side housings are respectively disposed on two opposite sides of the accommodating space.

[0007] According to some embodiments of the present application, the heat dissipation structure includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged at intervals on a side of the side housing away from the accommodating space.

[0008] According to some embodiments of the present application, the heat dissipation structure is formed on a side of the side shell away from the accommodating space by means of subtractive processing.

[0009] According to some embodiments of the present application, the side edges of the side shells are arranged as multiple steps, and the multiple steps of adjacent side shells are matched.

[0010] According to some embodiments of the present application, a side edge of a side shell is provided with a plurality of countersunk holes, and an adjacent side shell is provided with a plurality of threaded holes corresponding to the plurality of countersunk holes. The first fastener is a screw, and the screw passes through the countersunk hole and is threadedly connected to the threaded hole.

[0011] According to some embodiments of the present application, the heat dissipation structure is arranged on a side of the side shell away from the accommodating space, the power circuit board is attached to a side of one of the side shells away from the heat dissipation structure, and the interface circuit board is attached to a side of the other side shell away from the heat dissipation structure.

[0012] According to some embodiments of the present application, the side shell is provided with a contact platform, which extends in a direction close to the accommodation space, and the side shell is respectively attached to the power circuit board and the interface circuit board through the contact platform.

[0013] According to some embodiments of the present application, the contact platform is respectively adapted to the top cover and the bottom cover.

[0014] According to some embodiments of the present application, the connecting member is a connecting copper column, and two ends of the connecting copper column are fixedly connected to the power circuit board and the interface circuit board respectively.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] An industrial network switch provided by an embodiment of the present application can form a storage space for installing a circuit board assembly by setting a top cover, a bottom cover and two side shells, the number of parts is reduced, and the connection steps during assembly are also reduced, the structure is more compact, and the interfaces of the power circuit board and the interface circuit board in the storage space have corresponding opening positions and are adapted to each other, the assembly accuracy is higher, and a heat dissipation structure is provided, which can adjust the temperature range of use, and is suitable for complex environments, such as plateau environments, and can enhance the effect of temperature control under low air pressure. The present application effectively solves the problem of a large number of parts, large assembly errors, and unsatisfactory protection performance of an industrial network switch in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an industrial network switch provided in an embodiment of the present application;

[0021] Figure 2 Shows Figure 1 Exploded diagram of an industrial network switch.

[0022] The above drawings contain the following reference numerals:

[0023] 10. Shell assembly; 11. Top cover; 111. First opening; 12. Bottom cover; 13. Side shell; 131. Heat dissipation structure; 132. Second opening; 133. Contact platform; 134. Multi-step; 135. Countersunk hole; 136. Limiting plate; 20. Circuit board assembly; 21. Power circuit board; 211. First interface; 22. Interface circuit board; 221. Second interface; 23. Connector; 30. First fastener; 40. Second fastener. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0026] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0027] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides an industrial network switch, including: a shell assembly 10 and a circuit board assembly 20, the shell assembly 10 includes a top cover 11, a bottom cover 12 and two side shells 13 that enclose a storage space, the two side shells 13 are L-shaped plates to form a square storage space, a heat dissipation structure 131 is provided on the side shell 13, the two side shells 13 are fixedly connected by a first fastener 30, and the top cover 11 and the bottom cover 12 are respectively fixedly connected to each side shell 13 by a second fastener 40; the top cover 11 is provided with a first opening 111, and at least one side shell 13 is provided with a second opening 132; at least a power supply circuit board 21 and an interface circuit board 22 are both provided in the storage space, and a connector 23 is provided between the power supply circuit board 21 and the interface circuit board 22 for fixing, a plurality of first interfaces 211 adapted to the first opening 111 are provided on the power supply circuit board 21, and a plurality of second interfaces 221 adapted to the second opening 132 are provided on the interface circuit board 22. The first interface 211 is an interface located on the power circuit board 21, which can be one or more of a control end interface (Console interface), an alarm interface (ALARM alarm input / output interface) and a power terminal interface (PWR interface). The second interface 221 is an interface located on the interface circuit board 22, which can be an optical signal interface (SFP interface) or an Ethernet interface (RJ45 interface).

[0028] The technical solution of this embodiment can form a storage space for installing the circuit board assembly 20 by setting the top cover 11, the bottom cover 12 and the two side shells 13, the number of parts is reduced, and the connection steps during assembly are also reduced, the structure is more compact, and the interfaces of the power circuit board 21 and the interface circuit board 22 in the storage space have corresponding opening positions and are compatible, the assembly accuracy is higher, and a heat dissipation structure 131 is provided, which can adjust the temperature range of use, and is suitable for complex environments, such as plateau environments, and can enhance the temperature control effect under low pressure. The present application effectively solves the problem of a large number of parts of an industrial network switch in the prior art, large assembly errors, and unsatisfactory protection performance.

[0029] It should be noted that the side shells 13 are all L-shaped plates, and the accommodating space is a square accommodating space. The square accommodating space is more suitable for the installation of most circuit boards, and the structural design and preparation are more convenient, more conducive to the arrangement of the internal space, and the assembly benchmark is better. On the one hand, the design of the L-shaped plate is easy to obtain and process, and the processing performance and precision are better, and the compactness of the internal industrial network switch can be improved through high-precision processing. At the same time, the two sides of the square accommodating space can be formed, so that the periphery of the shell assembly 10 only needs four parts to be assembled. On the premise of satisfying the internal space to be more tidy and clear, it also effectively reduces the setting of parts and components, and also reduces the structural settings that need to be assembled, and can also improve the overall structural strength of the shell assembly 10.

[0030] Specifically, the technical solution of this embodiment includes 4 1000Base-X SFP interfaces and 8 10 / 100 / 1000Base-T(X)RJ45 electrical ports. It supports DT-Ring protocol family (self-healing time <50ms), DRP / DHP (self-healing time <20ms), MSTP / RSTP / STP, VLAN, multicast, QoS and other rich layer 2 software features, VRRP, OSPF, RIP, IGMP, PIM, static routing and other layer 3 functions, 802.1x, SSH, HTTPs, user classification and other security features, and supports CLI, Telnet, Web and multiple management methods and SNMPv1 / v2c / v3-based network management software. It has the ability to work stably and reliably in harsh industrial environments in terms of adaptability to outdoor environments, plateau adaptability, and high EMC protection performance requirements.

[0031] like Figure 2As shown, in the technical solution of this embodiment, the heat dissipation structure 131 and the second opening 132 are respectively arranged on different sides of the side shell 13, and the heat dissipation structures 131 of the two side shells 13 are respectively arranged on opposite sides of the accommodating space. Such an arrangement prevents the positions of the heat dissipation structure 131 and the second opening 132 from intersecting, which reduces the manufacturing difficulty of the side shell 13 on the one hand and facilitates production, and on the other hand can avoid excessive processing of a single side surface, which causes the structural strength of the material to be seriously affected.

[0032] It should be noted that in the technical solution of this embodiment, the heat dissipation structure 131 is arranged on opposite sides of the square accommodation space. Dissipating heat from two completely different directions can effectively improve the heat dissipation effect and enhance the overall performance of the industrial network switch. There can be multiple heat dissipation structures 131 in a single side shell 13. For example, in an L-shaped material, multiple heat dissipation structures 131 are respectively arranged on two plates. The specific number can be considered in terms of the comprehensive manufacturing cost. It is not limited here that a single side shell 13 contains only one heat dissipation structure 131.

[0033] like Figure 2 As shown, in the technical solution of this embodiment, the heat dissipation structure 131 includes a plurality of heat sinks, and the plurality of heat sinks are arranged at intervals on a side of the side housing 13 away from the accommodation space. Such an arrangement forms a gas channel between the heat sinks, which can increase the contact area between the external air and the heat sinks to achieve more heat exchange, and at the same time, the gas channel can adapt to the air flow and has a guiding effect, so that more heat can be taken away through the flow of gas, achieving a better heat dissipation effect.

[0034] It should be noted that the structure of multiple heat sinks can be a straight heat sink or a curved heat sink. The difference between the two lies in the total length of the gas passing through and the contact area with the heat sink. The selection can be made based on the temperature generated in actual operation and the consideration of environmental factors. For example, in a plateau environment, when night falls, the temperature drops significantly. At this time, it is necessary to consider whether the heat dissipation effect of the heat dissipation structure is too strong, causing the industrial network switch to be in a state of hypothermia. Furthermore, one side of the side shell 13 is provided with a heat dissipation structure 131, and existing technologies such as built-in fans or water cooling pipelines can also be used in the plate body of the side shell 13 to further increase the heat dissipation effect. It is only necessary to consider whether the actual use environment can support the implementation of the above technology.

[0035] like Figure 2As shown, in the technical solution of this embodiment, the heat dissipation structure 131 is formed on the side of the side shell 13 away from the accommodating space by means of subtractive processing. The heat dissipation structure 131 formed by means of subtractive processing, on the one hand, can directly conduct heat and has a better heat dissipation effect. On the other hand, such a setting reduces the installation of the heat dissipation structure 131 and simplifies the structure. At the same time, subtractive processing can further reduce the actual weight of the side shell 13 without affecting the structural strength of the side shell 13, so that the side shell 13 is relatively light in weight, which can save material costs and facilitate assembly and other operations.

[0036] like Figure 2 As shown, in the technical solution of this embodiment, the side of the side shell 13 is set as a multi-step step 134, and the multi-step steps 134 of adjacent side shells 13 are matched. Such a setting allows the side of the adjacent side shells 13 to form a tight combination, and also increases the contact position between the adjacent side shells 13, so that it is more difficult for water vapor or dust to invade from this position, which is conducive to improving the service life.

[0037] In an optional embodiment, the multi-step step 134 can be configured as mutually matching protrusions and depressions, convex and concave structures, and the two ends of the multi-step step 134 in the vertical direction are respectively in contact with the top cover 11 and the bottom cover 12 to form a seal at this position.

[0038] Furthermore, a plurality of sealing structures, such as sealing gaskets or felt, etc., may be provided at the positions where the multi-step steps 134 cooperate to achieve a multi-step sealing effect, or sealant may be directly used for preliminary connection to make the connection between the side shells 13 tighter.

[0039] like Figure 2 As shown, in the technical solution of this embodiment, a plurality of countersunk holes 135 are provided on the side of a side shell 13, and a plurality of threaded holes are provided on the adjacent side shells 13 corresponding to the plurality of countersunk holes 135, and the first fastener 30 is a screw, which passes through the countersunk hole 135 and is threadedly connected with the threaded hole. Such a setting can ensure that the combination of the multi-step steps 134 is tighter, the sealing effect is good, and the structure is more compact. It should be noted that the setting of the countersunk hole 135 is used to embed the first fastener 30 therein, so that the industrial network switch will not have a raised structure, and the overall appearance is simple and generous. The countersunk hole 135 can also be replaced with a structure such as a tapered hole, that is, the countersunk hole 135 can be set to a shape that matches the nut position of the screw.

[0040] like Figure 1 and Figure 2As shown, in the technical solution of this embodiment, the heat dissipation structure 131 is arranged on the side of the side shell 13 away from the accommodating space, the power circuit board 21 is attached to the side of one of the side shells 13 away from the heat dissipation structure 131, and the interface circuit board 22 is attached to the side of the other side shell 13 away from the heat dissipation structure 131.

[0041] Such a setting enables the heat energy generated by the power circuit board 21 and the interface circuit board 22 to be directly transferred, thereby realizing the heat energy transfer between the power circuit board 21 and the interface circuit board 22, and further enhancing the heat dissipation of the power circuit board 21 and the interface circuit board 22 to adapt to the complex field environment. In addition, the above-mentioned setting structure is compact, saving the matching space between the circuit board and the side shell 13. The application environment of the industrial network switch is relatively wide, and it can play its role even in high temperature and low pressure plateau areas, and long-term use will not cause the problem of heat accumulation and inability to dissipate heat. In this embodiment, the top cover 11, the bottom cover 12 and the two side shells 13 of the shell assembly 10 are arranged to enclose the accommodating space, avoiding complex structural connections, and the entire shell structure formed has strong integrity, which is conducive to reducing the arrangement of parts and components, and the structure is more compact. It is not easy for water vapor or dust and other substances to invade from the side of the accommodating space, avoiding damage to the industrial network switch.

[0042] like Figure 2 As shown, in the technical solution of this embodiment, the side housing 13 is provided with a contact platform 133, and the contact platform 133 extends in a direction close to the accommodating space, and the side housing 13 is respectively attached to the power circuit board 21 and the interface circuit board 22 through the contact platform 133. The contact platform 133 is designed to control the contact area and contact position between the side housing 13 and the power circuit board 21 or the interface circuit board 22, and plays a certain positioning reference role, and such a setting can control the demand for heat dissipation effect. For example, in a plateau environment, not only the effect of strong heat dissipation should be considered, but also the situation of cold weather. The contact platform 133 can be designed according to the specific components on the power circuit board 21 or the interface circuit board 22, that is, the heat dissipation effect is concentrated on the components that need heat dissipation, which can reduce the material used for the contact platform 133, thereby reducing the quality of the overall industrial network switch.

[0043] like Figure 2 As shown, in the technical solution of this embodiment, the contact platform 133 is respectively matched with the top cover 11 and the bottom cover 12. Such a setting increases the bonding degree of the top cover 11 and the bottom cover 12, the connection is tighter, the bonding effect is better, and the structure is compact.

[0044] It should be noted that if Figure 2As shown, in the technical solution of this embodiment, the side shell 13 is provided with a limiting plate 136, and the limiting plate 136 is used to form an installation space at the top or bottom of the side shell 13, and a limitation in one direction or two directions is formed between the side shells 13 to adapt to the installation position of the top cover 11 and the bottom cover 12. Such a setting, on the one hand, improves the degree of integration of the side shell 13 with the top cover 11 and the bottom cover 12, and on the other hand, can improve the assembly accuracy of the top cover 11 and the bottom cover 12 through the matching relationship of multiple positions, and at the same time can increase the contact area between the side shell and the top cover 11 and the bottom cover 12, and reduce the risk of dust and the like entering the accommodating space.

[0045] like Figure 2 As shown, in the technical solution of this embodiment, the connecting member 23 is a connecting copper column, and the two ends of the connecting copper column are respectively fixedly connected to the power circuit board 21 and the interface circuit board 22. The setting of the connecting copper column is used to fix the power circuit board 21 and the interface circuit board 22. Such a setting ensures that there is no mutual interference between the power circuit board 21 and the interface circuit board 22. A long screw can also be inserted into the connecting copper column to fix the power circuit board 21 and the interface circuit board 22. Such a structure is compact and stable, and is not prone to shaking.

[0046] like Figure 2 As shown, in the technical solution of this embodiment, the second fastener 40 is a threaded fastener, which passes through the top cover 11 or the bottom cover 12 and is threadedly connected to the threaded hole set in the side shell body 13, thereby achieving a tight combination of the two. Such a setting is conducive to a tight and stable connection, a compact structure, and is suitable for most environments, and dust or water vapor will not invade from the connection position.

[0047] like Figure 2As shown, in the technical solution of the present embodiment, in order to facilitate assembly, an assembly position is provided on the side shell 13 to facilitate the connection and fixation of the fasteners. Specifically, a threaded hole whose axis is perpendicular to the top cover 11 and the bottom cover 12 is provided on one of the plates of the side shell 13 to facilitate the cooperation of the second fastener 40; an assembly structure extending perpendicular to the plate toward the accommodating space is provided on the other plate, and threaded holes are respectively provided at both ends of the assembly structure, i.e., in the direction perpendicular to the top cover 11 and the bottom cover 12, to facilitate the cooperation of the second fastener 40. Furthermore, on the above-mentioned assembly structure, corresponding to the position of the connecting piece 23, the assembly structure is provided with a plurality of matching holes along the board direction perpendicular to the power circuit board 21 and the interface circuit board 22. The matching holes may be through holes, through which threaded fasteners are passed through the matching holes and threadedly connected to the connecting piece 23, thereby fixing the power circuit board 21 and the interface circuit board 22; the matching holes may be threaded holes, through which the threaded fasteners are threadedly connected to the threaded holes and penetrate into the connecting piece 23, thereby forming a limit for the connecting piece 23, thereby fixing the power circuit board 21 and the interface circuit board 22. Such a setting has a compact structure and is more adaptable.

[0048] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0049] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0050] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An industrial network switch, characterized in that: include: A housing assembly (10), the housing assembly (10) comprising a top cover (11), a bottom cover (12) and two side housings (13) which enclose a storage space, the two side housings (13) being both L-shaped plates to form a square storage space, a heat dissipation structure (131) being provided on the side housing (13), the two side housings (13) being fixedly connected via a first fastener (30), the top cover (11) and the bottom cover (12) being fixedly connected to each side housing (13) via a second fastener (40); the top cover (11) being provided with a first opening (111), and at least one side housing (13) being provided with a second opening (132); A circuit board assembly (20) comprises at least a power circuit board (21) and an interface circuit board (22) both arranged in the accommodation space, wherein a connecting piece (23) is arranged between the power circuit board (21) and the interface circuit board (22) for fixing, the power circuit board (21) being provided with a plurality of first interfaces (211) adapted to the first opening (111), and the interface circuit board (22) being provided with a plurality of second interfaces (221) adapted to the second opening (132).

2. The industrial network switch according to claim 1, characterized in that: The heat dissipation structure (131) and the second opening (132) are respectively arranged on different sides of the side shell (13), and the heat dissipation structures (131) of the two side shells (13) are respectively arranged on two opposite sides of the accommodating space.

3. The industrial network switch according to claim 1, characterized in that: The heat dissipation structure (131) comprises a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged at intervals on a side of the side housing (13) away from the accommodation space.

4. The industrial network switch according to claim 3, characterized in that: The heat dissipation structure (131) is formed on a side of the side housing (13) away from the accommodation space by means of subtractive processing.

5. The industrial network switch according to claim 1, characterized in that: The side edge of the side shell (13) is arranged as a plurality of steps (134), and the plurality of steps (134) of adjacent side shells (13) are adapted to each other.

6. The industrial network switch according to claim 5, characterized in that: A side edge of one of the side shells (13) is provided with a plurality of countersunk holes (135), and an adjacent side shell (13) is provided with a plurality of threaded holes corresponding to the plurality of countersunk holes (135); the first fastener (30) is a screw, and the screw passes through the countersunk hole (135) and is threadedly connected to the threaded hole.

7. The industrial network switch according to claim 1, characterized in that: The heat dissipation structure (131) is arranged on a side of the side shell (13) away from the accommodating space, the power supply circuit board (21) is attached to a side of one of the side shells (13) away from the heat dissipation structure (131), and the interface circuit board (22) is attached to a side of the other side shell (13) away from the heat dissipation structure (131).

8. The industrial network switch according to claim 7, characterized in that: The side housing (13) is provided with a contact platform (133), the contact platform (133) extending in a direction close to the accommodation space, and the side housing (13) is respectively attached to the power circuit board (21) and the interface circuit board (22) through the contact platform (133).

9. The industrial network switch according to claim 8, characterized in that: The contact platform (133) is respectively adapted to the top cover (11) and the bottom cover (12).

10. The industrial network switch according to claim 1, characterized in that: The connecting piece (23) is a connecting copper column, and two ends of the connecting copper column are respectively fixedly connected to the power supply circuit board (21) and the interface circuit board (22).

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