Domain controller

Abstract

The utility model provides a domain controller, and relates to the technical field of domain controllers. The domain controller comprises a shell, a supporting column, a locking piece, a first circuit board and a second circuit board. The first circuit board and the second circuit board are both fixed to the shell. The first end and the second end of the supporting column are respectively provided with a first abutting surface and a second abutting surface, the first end of the supporting column is connected with the shell, and the first circuit board is clamped between the shell and the first abutting surface; the second end of the supporting column is connected with the locking piece, the second circuit board is clamped between the locking piece and the second abutting face, and the supporting column is arranged corresponding to the middle of the first circuit board. According to the domain controller, the first circuit board and the second circuit board are not easy to loosen and shift, and good contact among the first circuit board, the second circuit board and other components is ensured, so that the working performance of the domain controller is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of domain controllers, in particular to a domain controller. Background Art

[0002] The housing of the domain controller is an important part of the domain controller. The housing of the domain controller can support, protect and dissipate heat for the circuit boards installed inside it. There are many types of domain controllers, such as power domain controllers or chassis domain controllers. Users can choose different types of circuit boards according to their needs.

[0003] As users' functional requirements for domain controllers increase, most existing domain controllers are equipped with two circuit boards to meet the response of multiple functions. However, when the existing domain controllers are subjected to external loads such as vibration or impact, the circuit boards are prone to loosening and displacement, resulting in poor contact between the circuit boards and components, and even stress shedding and fatigue fracture of components, which affects the performance of the domain controller. Utility Model Content

[0004] The utility model provides a domain controller, which at least solves the problem that a circuit board in a current domain controller is easy to loosen and shift, resulting in poor contact between the circuit board and other components, and difficulty in ensuring the performance of the domain controller.

[0005] The utility model provides a domain controller, comprising: a housing, a support column, a locking member, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board are both fixed to the housing;

[0006] The first end and the second end of the support column respectively have a first abutment surface and a second abutment surface. The first end of the support column is connected to the shell, and the first circuit board is clamped between the shell and the first abutment surface. The second end of the support column is connected to the locking member, and the second circuit board is clamped between the locking member and the second abutment surface. The support column is arranged corresponding to the middle part of the first circuit board.

[0007] According to a domain controller provided by the utility model, a first connecting column is convexly provided at the first end of the support column, the first connecting column and the first end surface of the support column form the first abutting surface, the shell is provided with a first connecting hole, the first connecting column passes through the first circuit board and is connected to the first connecting hole; and / or,

[0008] The second end of the support column is provided with a second connection hole, the second end surface of the support column is the second abutment surface, and the locking member passes through the second circuit board and is connected to the second connection hole.

[0009] According to a domain controller provided by the utility model, the first connecting column is provided with an external thread, the shell is provided with a limit platform, the first connecting hole is provided on the limit platform, and the first connecting column passes through the first circuit board and is threadedly engaged with the first connecting hole.

[0010] According to a domain controller provided by the utility model, the locking member includes a threaded column and a limit block, the threaded column is protruding from the limit block, and the threaded column passes through the second circuit board and is threadedly connected to the second connecting hole.

[0011] According to a domain controller provided by the utility model, the outer periphery of the support column is polygonal.

[0012] According to a domain controller provided by the utility model, the support column and the locking member are provided in a set in multiple sets.

[0013] According to a domain controller provided by the utility model, it also includes multiple first fasteners, the shell is provided with multiple bosses, the multiple bosses are arranged corresponding to the outer edge of the first circuit board, the bosses are abutted against the side of the first circuit board away from the second circuit board, and the multiple first fasteners are respectively penetrated through the first circuit board and connected to the multiple bosses one by one.

[0014] According to a domain controller provided by the utility model, it also includes multiple second fasteners, the shell is provided with multiple positioning columns, the multiple positioning columns are arranged corresponding to the outer edge of the second circuit board, the positioning columns are abutted against the second circuit board on the side of the first circuit board, and the multiple second fasteners are respectively penetrated through the second circuit board and connected to the multiple positioning columns one by one.

[0015] According to a domain controller provided by the utility model, a side wall of the shell is provided with a mounting groove, and the outer edge of the second circuit board is accommodated in the mounting groove and fixedly connected to the wall of the mounting groove.

[0016] According to a domain controller provided by the utility model, the shell includes a box body and a cover body, the cover body is covered on the open end of the box body to form an installation cavity, and the first circuit board and the second circuit board are both located in the installation cavity.

[0017] The utility model provides a domain controller, wherein a support column is arranged corresponding to the middle part of a first circuit board, and the first end and the second end of the support column respectively have a first abutting surface and a second abutting surface, and the first end of the support column is connected to a shell body to clamp the middle part of the first circuit board between the shell body and the first abutting surface, thereby forming a limit for the first circuit board; the second end of the support column is connected to a locking member to clamp the second circuit board between the locking member and the second abutting surface, thereby forming a stable support for the second circuit board, and the first circuit board and the second circuit board are not easy to loosen and shift, thereby ensuring good contact between the first circuit board, the second circuit board and other components, thereby ensuring the working performance of the domain controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural exploded diagram of the domain controller provided by the utility model;

[0020] Figure 2 It is a cross-sectional view of the domain controller provided by the utility model;

[0021] Figure 3 It is a cross-sectional view of a support column provided by the utility model.

[0022] Reference numerals:

[0023] 1. Shell; 11. Limiting platform; 12. Boss; 13. Positioning column; 14. Box body; 15. Cover body; 111. First connecting hole;

[0024] 2. Support column; 21. First connecting column; 201. Second connecting hole; 202. First abutting surface; 203. Second abutting surface;

[0025] 3. Locking piece; 31. Threaded column; 32. Limit block;

[0026] 4. First circuit board; 5. Second circuit board; 6. First fastener; 7. Second fastener. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The term "first" or "second" in the specification and claims of the utility model may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Combine the following Figures 1 to 3 , through specific embodiments and application scenarios, the domain controller provided by the embodiment of the utility model is described in detail.

[0032] like Figure 1 and Figure 2 As shown, the utility model provides a domain controller, including a housing 1 , a support column 2 , a locking member 3 , a first circuit board 4 and a second circuit board 5 , wherein the first circuit board 4 and the second circuit board 5 are both fixed to the housing 1 .

[0033] The first end and the second end of the support column 2 respectively have a first abutting surface 202 and a second abutting surface 203. The first end of the support column 2 is connected to the housing 1, and the first circuit board 4 is clamped between the housing 1 and the first abutting surface 202; the second end of the support column 2 is connected to the locking member 3, and the second circuit board 5 is clamped between the locking member 3 and the second abutting surface 203. The support column 2 is arranged corresponding to the middle part of the first circuit board 4.

[0034] It is understandable that if Figure 2 As shown, the housing 1 has a mounting cavity. The first circuit board 4, the second circuit board 5 and other components are fixed in the mounting cavity. The housing 1 can provide physical protection for the components located in the mounting cavity. The housing 1 can also play a role in waterproofing and heat dissipation. The user can adaptively select the material of the housing 1 according to different application scenarios of the domain controller. For example, the housing 1 can be an aluminum alloy metal part manufactured by machining.

[0035] The support column 2 has sufficient strength. Optionally, the support column 2 is a plastic part made by mold injection.

[0036] The support column 2 is located between the middle portion of the first circuit board 4 and the middle portion of the second circuit board 5 to lock and support the first circuit board 4 and the second circuit board 5 at the same time.

[0037] It should be noted that the middle portion of the first circuit board 4 refers to other areas of the first circuit board 4 that can be set in a fixed position except for its corners, and is not limited to the center of the first circuit board 4 .

[0038] Specifically, Figure 2 As shown, the first circuit board 4 and the second circuit board 5 are arranged side by side along the height direction of the housing 1. The axial length of the support column 2 can be adaptively adjusted according to the designed distance between the first circuit board 4 and the second circuit board 5, and the utility model does not make specific restrictions on this.

[0039] The utility model provides a domain controller, wherein a support column 2 is arranged corresponding to the middle part of a first circuit board 4, and the first end and the second end of the support column 2 respectively have a first abutting surface 202 and a second abutting surface 203, and the first end of the support column 2 is connected to a shell 1 to clamp the middle part of the first circuit board 4 between the shell 1 and the first abutting surface 202, thereby forming a limit for the first circuit board 4; the second end of the support column 2 is connected to a locking member 3 to clamp the second circuit board 5 between the locking member 3 and the second abutting surface 203, thereby forming a stable support for the second circuit board 5, and the first circuit board 4 and the second circuit board 5 are not prone to loosening and displacement, thereby ensuring good contact between the first circuit board 4, the second circuit board 5 and other components, thereby ensuring the working performance of the domain controller.

[0040] In some embodiments, Figure 3 As shown, a first connecting column 21 is protruding from the first end of the support column 2. The first connecting column 21 and the first end surface of the support column 2 form a first abutting surface 202. The housing 1 is provided with a first connecting hole 111, and the first connecting column 21 passes through the first circuit board 4 and is connected to the first connecting hole 111; and / or,

[0041] The second end of the support column 2 is provided with a second connection hole 201 , the second end surface of the support column 2 is a second abutting surface 203 , and the locking member 3 passes through the second circuit board 5 and is connected to the second connection hole 201 .

[0042] It is understandable that the first connecting column 21 is a small cylinder protruding from the first end of the supporting column 2. The supporting column 2 and the first connecting column 21 can be formed as one body by injection molding, and the two are coaxially arranged. The cross-sectional area of ​​the first connecting column 21 is smaller than the cross-sectional area of ​​the supporting column 2, thereby forming a step surface. The step surface is the first abutting surface 202.

[0043] The second end of the support column 2 is provided with a second connection hole 201, and the hole axis of the second connection hole 201 coincides with the axial direction of the support column 2. The second end surface of the support column 2 is a second abutting surface 203.

[0044] The second connection hole 201 may be a blind hole or a through hole. When the second connection hole 201 is a through hole penetrating the support column 2 , the first connection column 21 seals an end opening of the second connection hole 201 .

[0045] A first through hole is formed in the middle of the first circuit board 4. A second through hole is formed in the middle of the second circuit board 5. The first through hole and the second through hole are located on the same vertical line. The diameter of the first through hole is adapted to the outer diameter of the first connecting column 21, so as to allow the first connecting column 21 to pass through. The diameter of the second through hole is adapted to the outer diameter of the locking member 3, so as to allow the locking member 3 to pass through.

[0046] During assembly, firstly, the first connecting column 21 is passed through the first through hole and connected to the hole wall of the first connecting hole 111, so that the first circuit board 4 is disposed between the shell 1 and the first abutting surface 202; then, the locking member 3 is passed through the second through hole and connected to the hole wall of the second connecting hole 201, so that the second circuit board 5 is disposed between the second abutting surface 203 and the locking member 3; then, the outer edges of the first circuit board 4 and the second circuit board 5 are respectively fixed to the inner wall of the shell 1.

[0047] Furthermore, the first connecting column 21 is provided with an external thread. Figure 1 and Figure 2 As shown, the housing 1 is provided with a limiting platform 11. A first connecting hole 111 is provided on the limiting platform 11. A first connecting column 21 is passed through the first circuit board 4 and is threadedly matched with the first connecting hole 111.

[0048] It is understandable that if Figure 1 and Figure 2 As shown, the bottom surface of the housing 1 is provided with a limit platform 11. The limit platform 11 and the housing 1 can be formed as one body by injection molding. Among them, the hole depth of the first connecting hole 111 is less than the axial length of the limit platform 11, that is, the first connecting hole 111 is a blind hole. By setting the first connecting hole 111 as a blind hole, the rigidity of the bottom surface of the housing 1 can be ensured.

[0049] The hole wall of the first connection hole 111 is provided with an internal thread adapted to the external thread of the first connection column 21. During assembly, the first connection column 21 is inserted into the first through hole; then the first connection column 21 is screwed into the first connection hole 111 until the first circuit board 4 is tightly abutted between the end surface of the limiting platform 11 and the first abutting surface 202, thereby locking and limiting the first circuit board 4.

[0050] Furthermore, if Figure 2 As shown, the locking member 3 includes a threaded column 31 and a stop block 32. The threaded column 31 is protruded from the stop block 32. The threaded column 31 penetrates the second circuit board 5 and is threadedly connected to the second connection hole 201.

[0051] It is understandable that part of the second connection hole 201 is provided with threads. The threaded column 31 is threadedly matched with the threaded section of the second connection hole 201 . The axial length of the threaded section is greater than or equal to the axial length of the threaded column 31 .

[0052] The threaded column 31 and the limiting block 32 are an integral structure. The threaded column 31 is protrudingly arranged on one side surface of the limiting block 32. Optionally, the locking member 3 is a bolt.

[0053] During assembly, the threaded column 31 is passed through the second through hole and screwed into the second connecting hole 201 until the second circuit board 5 is tightly abutted between the limiting block 32 and the second abutting surface 203 .

[0054] In some other embodiments, a third connection hole is provided at the first end of the support column 2. The end surface of the first end of the support column 2 is a first abutting surface. A mounting platform is provided on the bottom surface of the housing 1. A protrusion is provided on the mounting platform. The third connection hole is adapted to the size of the protrusion.

[0055] During assembly, the protrusion is passed through the first circuit board 4 and clamped in the third connection hole, so that the first circuit board 4 is abutted between the end surface of the mounting platform and the first abutting surface.

[0056] That is, the first end of the support column 2 may be provided with a connection hole or a support column, as long as it can be connected with the housing 1 to clamp the first circuit board 4 .

[0057] In some embodiments, a third connecting column is protruding from the second end of the support column 2. The cross-sectional dimension of the third connecting column is smaller than the cross-sectional dimension of the second end of the support column 2, forming a second abutting surface. The outer wall of the third connecting column is provided with a thread. Correspondingly, the locking member is provided with a lock hole. The hole wall of the lock hole is provided with a thread adapted to the third connecting column. Optionally, the locking member is a nut.

[0058] During assembly, the third connecting column is sequentially inserted into the second circuit board 5 and the locking member, and then the locking member is tightened, so that the second circuit board 5 is abutted between the locking member and the second abutting surface.

[0059] That is, the second end of the support column 2 may be provided with a connection hole or a connection column, as long as it can cooperate with the locking member to clamp the second circuit board 5 between the second abutting surface and the locking member.

[0060] In some embodiments, the outer circumference of the support column 2 is polygonal. The support column 2 can also be a cylinder. Optionally, the outer circumference of the support column 2 is hexagonal, similar to a screw, which is convenient for tightening the first end of the support column 2 and the housing 1, and tightening the second end of the support column 2 and the locking member 3 using a tool.

[0061] In some embodiments, the support column 2 and the locking member 3 are provided in a set in multiple sets.

[0062] It is understandable that a plurality of sets of support columns 2 and locking members 3 are provided in sets to form a plurality of fixing points for the first circuit board 4 and the second circuit board 5 , thereby ensuring the installation stability of the first circuit board 4 and the second circuit board 5 .

[0063] The user can adaptively select the number of support columns 2 and locking members 3 according to the different specifications of the first circuit board 4 and the second circuit board 5. Optionally, the support columns 2 and locking members 3 can be provided in sets of two, three or five sets.

[0064] When multiple sets of support columns 2 and locking members 3 are provided, multiple support columns 2 are all provided in the middle of the first circuit board 4. Multiple support columns 2 can be arranged in the middle of the first circuit board 4 in any form, as long as it can be ensured that multiple support columns 2 can avoid components on the first circuit board 4 and the second circuit board 5. Preferably, multiple support columns 2 can be arranged in sequence along the length direction of the first circuit board 4.

[0065] When only one set of support column 2 and locking member 3 is provided, under the premise of not affecting the installation of components on the first circuit board 4 and the second circuit board 5, preferably, the support column 2 can be arranged at the center of the first circuit board 4 to ensure uniform force on the first circuit board 4 and the second circuit board 5.

[0066] like Figure 2As shown, the domain controller provided by the utility model further includes a plurality of first fasteners 6. The housing 1 is provided with a plurality of bosses 12, and the plurality of bosses 12 are arranged corresponding to the corners of the first circuit board 4, and the bosses 12 are arranged against the side of the first circuit board 4 away from the second circuit board 5. The plurality of first fasteners 6 are respectively penetrated through the first circuit board 4, and are connected with the plurality of bosses 12 one by one.

[0067] It is understandable that if Figure 2 As shown, the bottom surface of the housing 1 is provided with a plurality of bosses 12. The bosses 12 and the housing 1 may be an integral structure. The plurality of bosses 12 are arranged at intervals along the corners of the bottom surface of the housing 1, corresponding to the corners of the first circuit board 4.

[0068] The plurality of bosses 12 are respectively in contact with a side of the first circuit board 4 away from the second circuit board 5. In some embodiments, each boss 12 is provided with a first threaded blind hole. The first threaded blind hole is adapted to the first fastener 6. Correspondingly, the corners of the first circuit board 4 are provided with a plurality of first mounting holes at intervals.

[0069] During assembly, the first circuit board 4 is placed on the limiting platform 11 and the plurality of bosses 12, and then the plurality of first fasteners 6 are respectively inserted into the plurality of first mounting holes and threadedly connected with the plurality of first threaded blind holes one by one, so that the corners of the first circuit board 4 are respectively locked on the plurality of bosses 12 to ensure the stability of the installation of the first circuit board 4. Optionally, the first fasteners 6 are screws.

[0070] In some embodiments, Figure 2 As shown, the domain controller provided by the utility model further includes a plurality of second fasteners 7. The housing 1 is provided with a plurality of positioning posts 13. The plurality of positioning posts 13 are arranged corresponding to the corners of the second circuit board 5, and the positioning posts 13 are arranged against the second circuit board 5 on one side facing the first circuit board 4. The plurality of second fasteners 7 are respectively passed through the second circuit board 5, and are connected to the plurality of positioning posts 13 one by one.

[0071] It is understandable that if Figure 2 As shown, the bottom surface of the housing 1 is further provided with a plurality of positioning columns 13. The height of the end surface of the positioning column 13 can be consistent with the height of the second end surface of the support column 2.

[0072] The positioning posts 13 and the housing 1 may be an integral structure. A plurality of positioning posts 13 are arranged at intervals along the corners of the bottom surface of the housing 1 , corresponding to the corners of the second circuit board 5 .

[0073] The plurality of positioning posts 13 are respectively disposed against the side of the second circuit board 5 facing the first circuit board 4. In some embodiments, a second threaded blind hole is disposed in each positioning post 13. The second threaded blind hole is adapted to the second fastener 7. Correspondingly, the second circuit board 5 is provided with a plurality of second mounting holes, which are arranged at intervals along the corners of the second circuit board 5. Optionally, the second fastener 7 is a screw.

[0074] During assembly, multiple second fasteners 7 are respectively inserted into multiple second mounting holes and threadedly connected with multiple second threaded blind holes one by one, so that the second circuit board 5 is locked on multiple positioning columns 13 along its corners to ensure the stability of the installation of the second circuit board 5.

[0075] In some other embodiments, a mounting groove is provided on the side wall of the housing 1. The outer edge of the second circuit board 5 is accommodated in the mounting groove and fixedly connected to the wall of the mounting groove.

[0076] It is understandable that if Figure 2 As shown, the second circuit board 5 and the housing 1 are both rectangular. Correspondingly, a portion of the side wall of the housing 1 is recessed toward the inside thereof to form a mounting groove. The mounting groove extends along four adjacent side walls of the housing 1 to form a rectangular groove.

[0077] The support column 2 and the locking piece 3 cooperate to form a fixed support for the middle area of ​​the second circuit board 5; at the same time, the outer edge of the second circuit board 5 is accommodated in the rectangular groove, and the four side edges of the second circuit board 5 are respectively locked on the wall of the rectangular groove by fixing screws and other fixing pieces, so that the second circuit board 5 is locked on the inner wall of the shell 1 along its circumference, ensuring the stability of the installation of the second circuit board 5.

[0078] In some embodiments, Figure 1 and Figure 2 As shown, the housing 1 includes a box body 14 and a cover body 15. The cover body 15 is covered on the open end of the box body 14 to form an installation cavity. The support column 2, the locking member 3, the first circuit board 4 and the second circuit board 5 are all arranged in the installation cavity.

[0079] It is understandable that the cover 15 is disposed on the open portion of the box body 14. In some embodiments, the cover 15 and the box body 14 are detachably connected to facilitate installation of components such as the first circuit board 4 and the second circuit board 5. Optionally, one of the cover 15 and the box body 14 is provided with a buckle, and the other is provided with a slot, and the buckle is mounted in the slot.

[0080] In other embodiments, the cover 15 is fixedly connected to the box body 14. The cover 15 and the box body 14 may be connected by fixing members such as bolts.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A domain controller, characterized in that: include: A housing, a support column, a locking member, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board are both fixed to the housing; The first end and the second end of the support column respectively have a first abutment surface and a second abutment surface. The first end of the support column is connected to the shell, and the first circuit board is clamped between the shell and the first abutment surface. The second end of the support column is connected to the locking member, and the second circuit board is clamped between the locking member and the second abutment surface. The support column is arranged corresponding to the middle part of the first circuit board.

2. The domain controller according to claim 1, characterized in that: A first connecting column is convexly provided at the first end of the support column, the first connecting column and the first end surface of the support column form the first abutting surface, the housing is provided with a first connecting hole, the first connecting column passes through the first circuit board and is connected to the first connecting hole; and / or, The second end of the support column is provided with a second connection hole, the second end surface of the support column is the second abutment surface, and the locking member passes through the second circuit board and is connected to the second connection hole.

3. The domain controller according to claim 2, characterized in that: The first connecting column is provided with an external thread, the housing is provided with a limiting platform, the first connecting hole is provided on the limiting platform, and the first connecting column passes through the first circuit board and is threadedly engaged with the first connecting hole.

4. The domain controller according to claim 2, characterized in that: The locking member includes a threaded column and a limiting block. The threaded column is protruding from the limiting block. The threaded column passes through the second circuit board and is threadedly connected to the second connecting hole.

5. The domain controller according to claim 1, characterized in that: The outer circumference of the support column is polygonal.

6. The domain controller according to any one of claims 1 to 5, characterized in that: The support column and the locking member are provided in a plurality of sets.

7. The domain controller according to claim 1, characterized in that: It also includes multiple first fasteners, the shell is provided with multiple bosses, the multiple bosses are arranged corresponding to the outer edge of the first circuit board, the bosses are abutted against the side of the first circuit board away from the second circuit board, and the multiple first fasteners are respectively passed through the first circuit board and connected to the multiple bosses one by one.

8. The domain controller according to claim 1, characterized in that: It also includes multiple second fasteners, the shell is provided with multiple positioning columns, the multiple positioning columns are arranged corresponding to the outer edge of the second circuit board, the positioning columns are abutted against the second circuit board on the side facing the first circuit board, and the multiple second fasteners are respectively passed through the second circuit board and connected to the multiple positioning columns one by one.

9. The domain controller according to claim 1, characterized in that: The side wall of the housing is provided with a mounting groove, and the outer edge of the second circuit board is accommodated in the mounting groove and fixedly connected to the wall of the mounting groove.

10. The domain controller according to claim 1, characterized in that: The housing comprises a box body and a cover body, wherein the cover body is covered on the open end of the box body to form an installation cavity, and the first circuit board and the second circuit board are both located in the installation cavity.

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