CN215735191U - Domain controller - Google Patents

Abstract

The utility model discloses a domain controller, and belongs to the technical field of controllers. The domain controller comprises a shell and a board card arranged in the shell, and the shell is formed by assembling an upper shell and a lower shell; the board card comprises a main board and a core board which are sequentially arranged along the thickness direction of the shell; the core board is fixed on the upper shell through the first connecting piece, so that the weight of the core board is transmitted to the shell instead of being carried by the mainboard, and the deformation of the mainboard caused by the core board with heavier load is avoided; furthermore, two sides of the main board in the thickness direction are respectively jointed with the core board and the lower shell, so that the position of the main board in the shell is better limited, and the main board is not deformed or displaced even if the main board works in a vibration environment for a long time; the normal use of the domain controller is guaranteed by the arrangement.

Description

Domain controller

Technical Field

The utility model relates to the technical field of controllers, in particular to a domain controller.

Background

The domain controller is that under the 'domain' mode, at least one server is responsible for the verification work of each computer connected to the network and the user, and is equivalent to the same of a unit entrance guard; in a logistics distribution basin, the automatic driving vehicles are mainly coordinated and commanded by a domain controller. The existing domain controller mainly comprises an upper shell, a lower shell and a board card; referring to fig. 1, the board card is assembled by a main board 21 ' and a core board 22 ' on the main board 21 ' and then fixed on the upper case, and then the lower case is fixed on the upper case.

However, in the process of long-term use, the inventor finds that the following problems exist in the prior art:

1) the core board 22 'is heavy in weight due to the fact that a CPU, a storage device, pins and the like are integrated, after the domain controller is installed on a vehicle, the domain controller is affected by high vibration frequency and large amplitude of the vehicle body, the part of the main board 21' bearing the core board 22 'is locally stressed and easily deformed, so that a welding strip or a chip on the main board 21' has a phenomenon of welding detachment and welding breakage, and the domain controller can have functional faults;

2) after the core card 22 ' is installed on the mainboard 21 ', the mainboard is directly fixed on the upper shell, and under the environment of long-term vibration, the stability of installing the mainboard 21 ' is poor, and the shell vibration can be followed and then the deformation or the displacement takes place, influences the normal use of domain controller equally.

To this end, it is desirable to provide a domain controller to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide a domain controller, which can effectively solve the problem of deformation or displacement of a main board and ensure the normal use of the domain controller.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a domain controller comprises a shell and a board card arranged in the shell, wherein the shell is formed by assembling an upper shell and a lower shell; the board card comprises a main board and a core board which are sequentially arranged along the thickness direction of the shell; the core plate is fixed on the upper shell through a first connecting piece; the mainboard is followed thickness direction's both sides respectively with nuclear core plate with shell joint down, in order to spacing the mainboard.

As an alternative of the above domain controller, the first connecting member is of a bolt structure and includes a head portion and a rod portion which are connected in sequence, the rod portion penetrates through the core board and then is connected to the upper shell, and two ends of the head portion are respectively abutted to the core board and the main board, so that the main board and the core board are parallel to each other in the thickness direction and are arranged at intervals.

As an alternative to the above domain controller, the distance between the motherboard and the core board is comparable to the length of the head.

As an alternative of the domain controller, the domain controller further includes a second connecting member disposed on the main board, and the second connecting member includes a first connecting portion and a second connecting portion that are sequentially connected; the first connecting part is arranged on the first side of the mainboard and used for being jointed with the core board; the second connecting portion is disposed on a second side of the main board and is used for being joined to the lower case.

As an alternative to the above domain controller, the first connection portion of the second connection member is connected with the head portion of the first connection member.

As an alternative to the above-mentioned domain controller, the first connecting portion of the second connecting member is provided with an external thread, and the head portion of the first connecting member is provided with a threaded hole, so that the first connecting portion is in threaded connection with the head portion.

As an alternative to the above domain controller, the second connection portion of the second link abuts the lower housing.

As an alternative of the above domain controller, a limit boss is provided on an inner wall of the lower housing, and the second connecting portion of the second connecting member abuts against the limit boss.

As an alternative to the above domain controller, an elastic washer is disposed between the limit boss and the second connecting portion.

As an alternative of the above domain controller, a connection portion of the first connection portion and the second connection portion is provided with a limit step, and the limit step abuts against the first side or the second side of the main board.

The embodiment of the utility model has the following beneficial effects:

1) the core board is directly fixed on the upper shell, so that the weight of the core board is transmitted to the shell instead of being borne by the mainboard, the deformation of the mainboard caused by the core board bearing heavier weight is avoided, and the normal realization of the function of the domain controller is ensured;

2) through all joining mainboard and nuclear core plate and lower casing, both established the relation of connection between mainboard and the nuclear core plate, also established the relation of connection between mainboard and the lower casing, and then restricted the position of mainboard in the shell better, even work under the vibration environment for a long time, can not make mainboard self take place to warp or shift yet, compare and only carry out being connected between mainboard and the epitheca in prior art, show the steadiness that has improved the mainboard and placed, domain controller's normal use has been ensured.

Drawings

FIG. 1 is a schematic view of a prior art card assembly;

FIG. 2 is a schematic structural view of an upper housing in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a core board according to an embodiment of the present invention;

FIG. 4 is a schematic view of a core board disposed on an upper shell in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first connecting member in an embodiment of the present invention;

FIG. 6 is a schematic view of a core board being fixed to an upper shell by a first connecting member according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an assembly of a motherboard and a core board according to an embodiment of the utility model;

FIG. 8 is a schematic structural view of a lower case in an embodiment of the present invention;

FIG. 9 is a partial schematic view of a junction of a main board and a lower housing in an embodiment of the utility model;

fig. 10 is a schematic structural view of a limiting boss in the embodiment of the utility model.

In the figure:

11-an upper shell; 111-installation site; 12-a lower housing;

21. 21' -a main board; 22. 22' -core plate;

31-a first connector; 311-a head; 3111-a threaded hole; 312-a stem portion; 32-a second connector; 321-a second connecting portion;

41-limiting boss; 42-elastic gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The present embodiment discloses a domain controller. The domain controller comprises a shell and a board card arranged in the shell; wherein, the shell is assembled by an upper shell 11 and a lower shell 12. The integrated circuit board is a printed circuit board, is used for controlling the operation of hardware, is the core part of domain controller, and the integrated circuit board during operation can produce a large amount of heats, sets up the integrated circuit board in the shell, and the shell can play the effect of protection integrated circuit board, can also distribute away the heat that the integrated circuit board produced, plays supplementary radiating effect. Generally, the board card is a rectangular plate-shaped structure, and the shell is a cuboid structure or a structure similar to a cuboid; the thickness of the shell during manufacturing is as thin as possible, so that the occupation of the installation space on the vehicle body by the domain controller is reduced. Furthermore, the board card comprises a main board 21 and a core board 22 which are sequentially arranged along the thickness direction of the shell; the core board 22 is generally a system chip that integrates a CPU, a memory device, and pins, and is packaged, and since the core board 22 integrates the general functions of a core, it can be separated as a module, and thus it can often match with different motherboards 21; during assembly, a complete board card can be formed only by adapting and connecting the connector on the core board 22 with the main board 21.

Referring to fig. 2 to 6, the core board 22 is fixed to the upper case 11 by a first connecting member 31. Referring first to fig. 2-4, the upper shell 11 is provided with the mounting locations 111 of the core board 22, and the core board 22 is first placed on the mounting locations 111 of the upper shell 11; referring next to fig. 5 and 6, the core board 22 is fixed to the upper case 11 by the first connecting member 31. Optionally, referring to fig. 5, in this embodiment, the first connecting member 31 is a bolt structure, the first connecting member 31 includes a head portion 311 and a rod portion 312, which are connected in sequence, mounting holes are disposed on the core plate 22 and the upper shell 11, and the rod portion 312 of the first connecting member 31 passes through the mounting hole on the core plate 22 and then extends into the mounting hole of the upper shell 11 to form a fixed connection with the upper shell 11, so as to fix the core plate 22 and the upper shell 11. Further, after the mounting is completed, the end of the head 311 of the first connecting member 31 connected to the rod 312 abuts against the core plate 22.

Because the core board 22 is integrated with a CPU, a storage device, pins, and the like, the weight is heavy, and after the domain controller is installed on a vehicle, the domain controller is affected by high vibration frequency and large amplitude of the vehicle body, and the part of the main board 21 bearing the core board 22 is locally stressed and is easily deformed; above-mentioned design will be in the direct fixation of nuclear core plate 22 on last casing 11, can conduct the weight of nuclear core plate 22 to the shell on, rather than utilizing mainboard 21 to bear, just also avoided mainboard 21 because bear the weight heavier nuclear core plate 22 and the deformation that leads to, avoid mainboard 21 to take place to desolder the broken welding phenomenon, guaranteed the normal realization of domain controller function.

Alternatively, in an embodiment, referring to fig. 2 and 4, the number of the core boards 22 is two, and therefore, the two mounting positions 111 on the upper shell 11 are also provided to correspond to the core boards 22 one by one. Four mounting holes which are distributed in a rectangular shape are formed in each mounting position 111, so as to correspond to the core board 22 with the rectangular structure; accordingly, the number of the first connecting members 31 is also set to four, so that the core board 22 is firmly fixed to the upper case 11 at the four corners of the core board 22. Of course, in specific implementation, the number of the core boards 22, the number of the mounting holes, and the number of the first connecting members 31, and the distribution of the mounting holes are not particularly limited, as long as the core boards 22 can be stably connected to the upper shell 11. Alternatively, stainless steel bolts are used for the first connecting member 31 to ensure sufficient waterproofness of the connecting member.

Furthermore, since the motherboard 21 needs to be connected to the connector on the core board 22 to conduct the corresponding circuits on the core board 22 and the motherboard 21, a gap needs to be formed between the motherboard 21 and the core board 22 in the thickness direction of the housing; that is, the two plate-like structures need to be arranged parallel to and spaced apart from each other to facilitate the connection of the connectors. In this embodiment, the two ends of the head 311 of the first connecting member 31 are respectively abutted against the core board 22 and the main board 21, and the interval arrangement between the main board 21 and the core board 22 is naturally realized. Meanwhile, the distance between the main board 21 and the core board 22 is equal to the length of the head 311, so that after the installation is completed, the distance between the main board 21 and the core board 22 can ensure the normal connection of the connector between the main board 21 and the core board 22, and the main board 21 cannot be extruded mutually, so that the micro-deformation is avoided; that is, in this case, the head 311 of the first connector 31 is only in contact with the main plate 21, but does not press the main plate 21 to be slightly deformed. If the main board 21 is slightly deformed, the speed of the main board 21 deforming more quickly in a long-term vibration environment, and the service life of the board card is reduced; therefore, the deformation degree of the main board 21 can be further reduced by the arrangement, and the service life of the board card is prolonged. In one embodiment, the length of the head 311 of the first connecting member 31 is 4.5 mm.

Referring to fig. 7 to 9, both sides of the main plate 21 in the thickness direction of the case are respectively engaged with the core plate 22 and the lower case 12 to restrain the main plate 21. Here, a side of the main board 21 close to the core board 22 is referred to as a first side, and a side far from the core board 22 is referred to as a second side. In specific implementation, although the motherboard 21 and the core board 22 are connected through the connector, only the functional connection is realized, the first connecting member 31 only fixes the core board 22 in the upper shell 11, and the motherboard 21 does not establish a stable connection with the shell, that is, the motherboard 21 is still unstable in the shell, which obviously does not meet the requirement of placing the board card. Therefore, through all joining mainboard 21 and between nuclear core plate 22 and lower casing 12, both established the relation of connection between mainboard 21 and the nuclear core plate 22, also established the relation of connection between mainboard 21 and the lower casing 12, and then better restricted mainboard 21 the position in the shell, even work under the vibration environment for a long time, also can not make mainboard 21 self take place to warp or shift, compare in prior art and only carry out the connection between mainboard 21 and the epitheca, obviously improved the steadiness that mainboard 21 placed, guaranteed domain controller's normal use.

Specifically, optionally, referring to fig. 7, the domain controller further includes a second connecting element 32, where the second connecting element 32 is disposed on the main board 21, and specifically includes a first connecting portion and a second connecting portion 321 that are connected in sequence; wherein, the first connecting part is arranged at the first side of the main board 21 and is used for jointing the core board 22; the second connecting portion 321 is provided on the second side of the main board 21 for engaging with the lower case 12. The second connecting member 32 is divided into two parts, one part is used for being jointed with the core board 22, so that the connection between the main board 21 and the core board 22 is realized, the other part is used for being jointed with the lower shell 12, so that the connection between the main board 21 and the core board 22 is realized, the main board 21 can be limited between the lower shell 12 and the core board 22, and the main board 21 is ensured not to move. In specific implementation, the joint between the second connecting member 32 and the core board 22 and the lower shell 12 may be selected from various connection modes such as clamping, abutting, and screwing, so long as the stable placement of the main board 21 can be finally achieved.

In an embodiment, the first connection portion of the second connection member 32 is connected to the head portion 311 of the first connection member 31, that is, the head portion 311 of the first connection member 31 is used to indirectly connect the main board 21 and the core board 22, and still has a joint effect. Further alternatively, the first connection part of the second connection member 32 is provided with an external thread, that is, the first connection part of the second connection member 32 can be regarded as a screw rod; referring to fig. 5, a threaded hole 3111 is formed in the head 311 of the first connecting member 31, so that the first connecting portion is connected with the head 311 of the first connecting member 31 by a threaded connection, which not only ensures the connection strength, but also facilitates the joining operation. In this embodiment, the number of the second connecting members 32 corresponds to the number of the first connecting members 31 one by one, so as to ensure the connection stability between the main board 21 and the core board 22. Of course, in some other embodiments, the first connection portion may also be directly connected to the core board 22 to achieve the connection between the main board 21 and the core board 22, and the connection manner is not limited to the screw connection manner, as long as the connection of the core board 22 along the main board 21 is ensured to be stable.

With continued reference to fig. 9, the second connecting portion 321 of the second connecting member 32 is directly engaged with the lower housing 12 in an abutting manner; the assembly is simple and fast, and since the first side of the main board 21 has already established a stable connection with the core board 22, the need for a stable placement of the main board 21 can be met by the abutting of the lower shell 12 on the second side of the main board 21. Further alternatively, since the area of the lower shell 12 is large, and the thickness of the shell needs to be thin for the purpose of reducing weight, it is only necessary to arrange the limiting boss 41 on the inner wall of the lower shell 12, so that the second connecting portion 321 of the second connecting member 32 abuts against the limiting boss 41. Specifically, the limiting bosses 41 are provided in a plurality, and correspond to the second connecting members 32 in number one to one, so that each second connecting member 32 is correspondingly abutted to one of the limiting bosses 41.

Further, still referring to fig. 9, an elastic washer 42 is provided between the stopper boss 41 and the second connecting portion 321; the elastic gasket 42 has a certain extrusion deformation amount, so that when the second connecting portion 321 abuts against the limiting boss 41, the elastic gasket 42 can be extruded, which not only facilitates the confirmation of the abutting state when the person installs the elastic gasket, but also helps to stably maintain the abutting state. In specific implementation, once it is confirmed that the elastic gasket 42 is pressed, the limit boss 41 can be ensured to abut against the second connecting portion 321, and the upper shell 11 and the lower shell 12 are also assembled in place. Further alternatively, referring to fig. 10, the elastic pad 42 may be directly attached to the position-limiting boss 41; alternatively, the elastic pad 42 may be directly attached to the end of the second connection part 321 of the second connection member 32 without being separately stored. Alternatively, the resilient pad 42 is a silicone sheet.

In a specific embodiment, after the main board 21 is joined to the core board 22, the size of the main board 21 and the lower shell 12 in the thickness direction of the shell is 14mm, the height of the limiting boss 41 is 7.2mm, the original thickness of the silicone sheet is 1mm, and the length of the second connecting portion 321 of the second connecting member 32 on the second side of the main board 21 is 6 mm; therefore, in the assembling process of the lower shell 12, the second connecting portion 321 of the second connecting member 32 abuts against the limiting boss 41 to extrude the silica gel sheet, when the silica gel sheet is extruded to deform by 0.2mm, the lower shell 12 is assembled in place, and the main board 21 can be stably placed.

A limit step is arranged at the connection position of the first connection part and the second connection part 321 of the second connection part 32, and the limit step is abutted against the first side or the second side of the main board 21. In specific implementation, the main board 21 is provided with a through hole, so that the first connecting portion or the second connecting portion 321 of the second connecting member 32 can penetrate through the through hole and then be connected with a corresponding component, and the second connecting member 32 and the main board 21 do not need to be installed and fixed in advance; meanwhile, the limiting step between the two connecting parts plays a limiting role, so that the extending lengths of different connecting parts of the second connecting part 32 on the first side and the second side are ensured to be certain, and the installation is accurately and quickly completed by personnel. In one embodiment, the second connecting member 32 can be a single-pass hexagonal copper column or a single-pass hexagonal stainless steel column, and the threaded portion thereof can be used as the first connecting portion, while the unthreaded portion thereof can be used as the second connecting portion 321. And the single-pass hexagonal copper column or the single-pass hexagonal stainless steel column as it is the standard component, can directly purchase, and then reduced design and manufacturing cost.

In some other embodiments, the positions of the first connecting portion and the second connecting portion 321 of the second connecting member 32 may be reversed, that is, the first connecting portion is disposed on the second side of the main board 21 and is engaged with the lower case 12 by means of a bolt connection, and the second connecting portion 321 is disposed on the first side of the main board 21 and is engaged by abutting against the core board 22; the connection method is equivalent to first firmly connecting the main board 21 and the lower shell 12 (i.e., the outer shell), and then realizing the relatively firm connection between the main board 21 and the core board 22 by using the abutting connection method. Either way, it is sufficient if the main board 21 is securely placed in the housing.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A domain controller comprises a shell and a board card arranged in the shell, wherein the shell is formed by assembling an upper shell (11) and a lower shell (12); the integrated circuit board is characterized in that the integrated circuit board comprises a main board (21) and a core board (22) which are sequentially arranged along the thickness direction of the shell; the core plate (22) is fixed on the upper shell (11) through a first connecting piece (31); the two sides of the main plate (21) in the thickness direction are respectively engaged with the core plate (22) and the lower case (12) to limit the main plate (21).

2. The domain controller of claim 1, wherein the first connecting member (31) is a bolt structure, and comprises a head portion (311) and a rod portion (312) connected in sequence, the rod portion (312) passes through the core board (22) and then is connected to the upper housing (11), and two ends of the head portion (311) are respectively abutted against the core board (22) and the main board (21), so that the main board (21) and the core board (22) are arranged in parallel and at an interval in the thickness direction.

3. Domain controller according to claim 2, characterized in that the distance between the motherboard (21) and the core board (22) is comparable to the length of the header (311).

4. Domain controller according to claim 2, further comprising a second connection (32) provided on the main board (21), the second connection (32) comprising a first connection portion and a second connection portion (321) connected in sequence; the first connecting part is arranged on a first side of the main board (21) and is used for being jointed with the core board (22); the second connecting portion (321) is provided on a second side of the main plate (21) for engaging with the lower case (12).

5. Domain controller according to claim 4, wherein said first connection portion of said second connection member (32) is connected with said head portion (311) of said first connection member (31).

6. Domain controller according to claim 5, wherein said first connection portion of said second connection member (32) is externally threaded and said head portion (311) of said first connection member (31) is threaded (3111) for screwing said first connection portion to said head portion (311).

7. Domain controller according to claim 4, wherein the second connection portion (321) of the second connection member (32) abuts the lower housing (12).

8. Domain controller according to claim 4, wherein a stop boss (41) is provided on the inner wall of the lower housing (12), the second connection portion (321) of the second connection member (32) abutting the stop boss (41).

9. Domain controller according to claim 8, characterized in that an elastic gasket (42) is provided between the stop boss (41) and the second connection portion (321).

10. Domain controller according to claim 4, characterized in that the connection of the first connection part and the second connection part (321) is provided with a stop step, which abuts against the first side or the second side of the main board (21).

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