Controller

Abstract

The utility model provides a controller, comprising a PCB, the PCB comprises a PCB body and a pressing edge, the PCB body is provided with a plug connector, and the pressing edge is arranged at the circumferential outer side of the PCB body; the upper shell and the lower shell are arranged in the first preset direction, the PCB is arranged between the upper shell and the lower shell, the circumferential inner wall of the lower shell is provided with a crimping part, the upper shell is provided with a crimping protrusion, the crimping protrusion extends in the first preset direction, and the crimping protrusion is used for being pressed on the pressing edge so that the pressing edge can abut against the crimping part; a first bonding layer is arranged on the PCB body, the first bonding layer is arranged on the circumferential outer side of the plug connector, and the first bonding layer is used for bonding the upper shell and the PCB body. According to the utility model, the problem that the PCB is easy to shake relative to the upper shell and the lower shell in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell technical field, specifically, relate to a kind of controller. BACKGROUND

[0002] Domain controller is used to control hydrogen fuel cell engine, and domain controller includes controller shell and PCB board, and the controller shell includes upper shell and lower shell, and PCB board is placed between upper shell and lower shell, and upper shell is provided with avoiding mouth, and the plug-in piece of PCB is passed through avoiding mouth to be electrically connected to external element.

[0003] However, PCB board is prone to shake relative to upper shell and lower shell, resulting in friction between plug-in piece and avoiding mouth, resulting in damage to plug-in piece. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of controller, to solve the problem that PCB board in prior art is prone to shake relative to upper shell and lower shell.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a kind of controller, including: PCB board, PCB board includes PCB board body and pressing edge, plug-in piece is provided on PCB board body, and pressing edge is arranged on the circumferential outer side of PCB board body;Upper shell and lower shell, along the first preset direction, PCB board is arranged between upper shell and lower shell, and the circumferential inner wall of lower shell is provided with pressure contact part, and the pressure contact part is arranged on the circumferential outer side of plug-in piece, and the first adhesive layer is used to adhere upper shell and PCB board body.

[0006] Further, the lower shell includes a bottom and a circumferential side portion, the circumferential side portion is arranged around the bottom, the circumferential side portion and the bottom are connected, the circumferential side portion includes a circumferential inner wall, a circumferential outer wall and an end wall, the circumferential inner wall and the circumferential outer wall extend along the first preset direction, and the end wall is arranged between the circumferential inner wall and the circumferential outer wall;The second adhesive layer is arranged on the end wall, and the second adhesive layer is used to adhere the upper shell and the end wall.

[0007] Further, the bottom of the lower shell is provided with a protruding portion, the protruding portion protrudes in the direction of approaching the PCB board along the first preset direction, and the third adhesive layer is arranged on the protruding portion, and the third adhesive layer is used to adhere the PCB board body and the protruding portion.

[0008] Further, the first fastening hole is arranged on the inner wall of the bottom of the lower shell, and the second fastening hole is arranged on the PCB board body, so that the first fastener is passed through the first fastening hole and the second fastening hole, so that the PCB board and the lower shell are tightly connected.

[0009] Further, the upper shell is provided with a first fastening part, the first fastening part is provided with a third fastening hole, the circumferential outer wall of the lower shell is provided with a second fastening part, the second fastening part is provided with a fourth fastening hole, the third fastening hole and the fourth fastening hole are penetrated by the second fastening piece, and the lower shell and the upper shell are fastened and connected.

[0010] Further, the inner wall of the bottom of the lower shell is provided with a limiting shaft, the limiting shaft extends along a first preset direction, and the PCB body is provided with a limiting hole, so that the limiting shaft is penetrated in the limiting hole, and the limiting shaft limits the PCB.

[0011] Further, the limiting hole is two, the axial end face of one of the two limiting holes is circular, the axial end face of the other limiting hole is elliptical, the long side of the elliptical shape extends along a second preset direction, and the limiting shaft is two, the two limiting shafts are correspondingly arranged with the two limiting holes.

[0012] Further, the protruding part is provided with a avoiding gap, the controller further comprises an insulating heat-conducting sheet, the insulating heat-conducting sheet is embedded in the avoiding gap, the insulating heat-conducting sheet and the PCB body abut, and the PCB body is heat-conducted.

[0013] Further, the circumferential outer wall of the lower shell is provided with a damping part, the damping part is provided with a first damping hole, the controller further comprises a damping block, the damping block is provided with a second damping hole, the damping block and the damping part extend along the first preset direction, the first damping hole and the second damping hole are penetrated by the third fastening piece, and the damping block and the damping part are fastened and connected, wherein the circumferential outer wall of the damping block and the circumferential outer wall of the upper shell abut.

[0014] Further, the damping part is multiple, the multiple damping parts are arranged at intervals along the circumferential direction of the lower shell, the damping block is multiple, and the multiple damping blocks and the multiple damping parts are correspondingly arranged.

[0015] The technical scheme of the utility model is applied, the controller comprises a PCB, an upper shell and a lower shell, the PCB comprises a PCB body and a pressing edge, the PCB body is provided with a plug-in part, the circumferential inner wall of the lower shell is provided with a pressure welding part, and the upper shell is provided with a pressure welding protrusion. The pressure welding protrusion of the upper shell is arranged on the pressing edge, so that the pressing edge abuts against the pressure welding part, the pressure welding protrusion limits and fixes the PCB, and the PCB is prevented from shaking relative to the upper shell and the lower shell. Meanwhile, the upper shell and the PCB body are bonded by the first adhesive layer, so that the upper shell and the PCB are fastened and connected, and the PCB is prevented from shaking relative to the upper shell, thereby solving the problem that the PCB in the prior art is prone to shaking relative to the upper shell and the lower shell. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application serve to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A structural schematic view of an upper shell of a controller according to the present application is shown;

[0018] Figure 2 A bottom view schematic view of a PCB board of a controller according to the present application is shown;

[0019] Figure 3 An exploded structural schematic view of a PCB board (with a pressing edge removed) of a controller according to the present application is shown;

[0020] Figure 4 An exploded structural schematic view of a lower shell of a controller according to the present application is shown;

[0021] Figure 5 A structural schematic view of a damping block of a controller according to the present application is shown.

[0022] Among the above drawings, the following reference signs are included:

[0023] 10, PCB board; 11, PCB board body; 12, pressing edge; 13, plug-in part; 20, upper shell; 30, lower shell; 31, pressing part; 21, pressing protrusion; 22, heat dissipation fin; 40, first adhesive layer; 32, circumferential inner wall; 33, circumferential outer wall; 34, end wall; 41, second adhesive layer; 35, protrusion part; 36, first fastening hole; 14, second fastening hole; 1, first fastener; 22, first fastening part; 23, third fastening hole; 37, second fastening part; 371, fourth fastening hole; 38, limiting shaft; 24, limiting hole; 351, avoiding notch; 50, insulating heat-conducting sheet; 60, damping part; 61, first damping hole; 62, damping block; 63, second damping hole; 222, first heat dissipation fin; 231, label pasting area; 242, waterproof and dustproof air hole; 221, second heat dissipation fin; 70, third adhesive layer. DETAILED DESCRIPTION

[0024] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component, and / or combination thereof.

[0025] The relative arrangement of parts and steps, numerical expressions, and values set forth in the examples herein are not intended to limit the scope of the present application unless otherwise specifically stated. Also, it is to be understood that the dimensions of the various parts shown in the drawings are by no means limiting and that the techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail but should be considered as part of the specification where appropriate. In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that discussion of a particular item in one drawing does not mean that it is not discussed in further drawings.

[0026] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0027] Please refer to Figures 1 to 5 The utility model provides a kind of controller, comprising: PCB board 10, PCB board 10 includes PCB board body 11 and press edge 12, plug connector 13 is provided on PCB board body 11, press edge 12 is set in the circumferential outside of PCB board body 11;Upper shell 20 and lower shell 30, along first preset direction, PCB board 10 is arranged between upper shell 20 and lower shell 30, and press contact portion 31 is provided on the circumferential inner wall 32 of lower shell 30, and press contact protrusion 21 is provided on upper shell 20, press contact protrusion 21 extends along first preset direction, and press contact protrusion 21 is used to press the setting on press edge 12, so that press edge 12 and press contact portion 31 abut;First adhesive layer 40 is provided on PCB board body 11, and first adhesive layer 40 is set in the circumferential outside of plug connector 13, and first adhesive layer 40 is used to bond upper shell 20 and PCB board body 11.

[0028] The utility model discloses a controller includes PCB board 10, upper casing 20 and lower casing 30, and PCB board 10 includes PCB board body 11 and press edge 12, is provided with the plug connector 13 on PCB board body 11, is provided with the crimping portion 31 on the circumferential inner wall 32 of lower casing 30, is provided with the crimping protrusion 21 on upper casing 20. The crimping protrusion 21 of upper casing 20 is pressed and set on press edge 12, so that press edge 12 and crimping portion 31 abut, so that crimping protrusion 21 is limited to the fixed PCB board 10, avoids the wobble of PCB board relative to upper casing 20 and lower casing 30, and simultaneously through the first adhesive layer 40 bonding upper casing 20 and PCB board body 11, so that upper casing 20 and PCB board 10 fastening connection, avoid the wobble of PCB board 10 relative to upper casing 20, thereby solve the problem that the PCB board in the prior art is easy to wobble relative to upper casing and lower casing.

[0029] Specifically, the size of the controller of the utility model is 337.5mm*247.5mm*78.5mm, can accommodate larger PCB board 10, therefore the plug connector 13 of PCB board 10 of the utility model has 336 external function interfaces, so that the controller of the application can realize more control functions, that is, more external elements can be controlled.

[0030] Specifically, press edge 12 is 2mm width metal ground edge, and the clearance between the circumferential inner wall 32 of lower casing 30 and press edge 12 is at least 1mm to ensure assembly safety and avoid extrusion damage between press edge 12 and the circumferential inner wall 32 of lower casing 30.

[0031] Specifically, the glue groove is arranged on PCB board body 11, and the heat-conducting structural adhesive is injected into the glue groove to form the first adhesive layer 40.

[0032] In the embodiment, the lower casing 30 includes a bottom and a circumferential side portion, the circumferential side portion is arranged around the bottom, the circumferential side portion is connected with the bottom, the circumferential side portion includes a circumferential inner wall 32, a circumferential outer wall 33 and an end wall 34, the circumferential inner wall 32 and the circumferential outer wall 33 extend along a first preset direction, and the end wall 34 is arranged between the circumferential inner wall 32 and the circumferential outer wall 33; the second adhesive layer 41 is arranged on the end wall 34, and the second adhesive layer 41 is used for bonding the upper casing 20 and the end wall 34.

[0033] Specifically, the second adhesive layer 41 is bonded to the upper casing 20 and the end wall 34, so that the upper casing 20 and the lower casing 30 are fastened and connected, and the overall structural stability of the controller is ensured; at the same time, the gap between the upper casing 20 and the lower casing 30 can be sealed to prevent dust and moisture from the outside from entering the inside of the controller.

[0034] Specifically, the cross section of the second adhesive layer 41 after being extruded is 3.6mm*1.3mm, and the second adhesive layer 41 is a heat-conducting structural adhesive.

[0035] In the embodiment, the bottom of the lower shell 30 is provided with a protruding part 35 protruding in a first preset direction towards the direction close to the PCB plate 10, and the protruding part 35 is provided with a third adhesive layer 70 for bonding the PCB plate body 11 and the protruding part 35.

[0036] Specifically, the PCB plate 10 and the lower shell 30 are tightly connected by bonding the PCB plate body 11 and the protruding part 35 through the third adhesive layer 70, so as to avoid the shaking of the PCB plate 10 relative to the lower shell 30.

[0037] Specifically, the third adhesive layer 70 is a heat-conducting structural adhesive, the thickness of the third adhesive layer 70 is 0.3mm after extrusion, and the third adhesive layer 70 has the functions of heat conduction, adhesion and insulation, which helps to transfer the heat of the PCB plate 10 to the lower shell 30 and avoid damage caused by overheating of the PCB plate 10.

[0038] In the embodiment, the inner wall of the bottom of the lower shell 30 is provided with a first fastening hole 36, and the PCB plate body 11 is provided with a second fastening hole 14, so that the first fastening member 1 is arranged through the first fastening hole 36 and the second fastening hole 14, so as to tightly connect the PCB plate 10 and the lower shell 30.

[0039] Specifically, the first fastening member 1 is arranged through the first fastening hole 36 and the second fastening hole 14, so that the PCB plate 10 and the lower shell 30 are tightly connected, the connection reliability between the PCB plate 10 and the lower shell 30 is ensured, and the shaking of the PCB plate 10 relative to the lower shell 30 is avoided.

[0040] Specifically, the first fastening member 1 is an M3.5 triangular self-tapping screw, and there are four first fastening members 1.

[0041] In the embodiment, the upper shell 20 is provided with a first fastening part 22, the first fastening part 22 is provided with a third fastening hole 23, the circumferential outer wall 33 of the lower shell 30 is provided with a second fastening part 37, the second fastening part 37 is provided with a fourth fastening hole 371, and the second fastening member is arranged through the third fastening hole 23 and the fourth fastening hole 371, so as to tightly connect the lower shell 30 and the upper shell 20.

[0042] Specifically, the second fastening member is arranged through the third fastening hole 23 and the fourth fastening hole 371, so that the lower shell 30 and the upper shell 20 are tightly connected, the connection reliability between the lower shell 30 and the upper shell 20 is ensured, and the structural stability of the whole controller is ensured.

[0043] Specifically, the second fastening member is an M3.5 triangular self-tapping screw, and there are eight second fastening members.

[0044] In the embodiment, the inner wall of the bottom of the lower shell 30 is provided with a limiting shaft 38 extending along a first preset direction, and the PCB plate body 11 is provided with a limiting hole 24, so that the limiting shaft 38 is arranged in the limiting hole 24, and the limiting shaft 38 limits the PCB plate 10.

[0045] Specifically, the limiting shaft 38 is arranged in the limiting hole 24, so that the limiting shaft 38 limits the PCB plate 10, which helps to avoid the PCB plate 10 from deviating from the preset installation position. When the PCB plate 10 is installed, the limiting hole 24 is only needed to be arranged on the limiting shaft 38, so that the PCB plate 10 is guaranteed to be in the preset installation position, and the installation personnel does not need to repeatedly align the second fastening hole 14 on the PCB plate 10, which reduces the installation difficulty of the PCB plate 10 and the assembly difficulty of the controller.

[0046] In the embodiment, the limiting hole 24 is two, the axial end face of one of the two limiting holes 24 is circular, the axial end face of the other limiting hole 24 is elliptical, the long side of the elliptical shape extends along a second preset direction, and the limiting shaft 38 is two, and the two limiting shafts 38 are arranged one by one corresponding to the two limiting holes 24.

[0047] Specifically, by setting the other limiting hole 24 of the two limiting holes 24 as elliptical, the assembly influence of the manufacturing error of the PCB plate 10 can be reduced, so that the PCB plate 10 with manufacturing error can also be successfully installed between the upper shell 20 and the lower shell 30.

[0048] Specifically, the circular limiting hole 24 and the limiting shaft 38 are in close fit, and the elliptical limiting hole 24 and the limiting shaft 38 are in clearance fit.

[0049] Specifically, the first preset direction is the y direction as shown in Figure 1 , and the second preset direction is the x direction as shown in Figure 1 , and the first preset direction and the second preset direction are arranged perpendicular to each other.

[0050] In the embodiment, the protruding part 35 is provided with a relief gap 351, and the controller further comprises an insulating heat-conducting sheet 50, the insulating heat-conducting sheet 50 is embedded in the relief gap 351, and the insulating heat-conducting sheet 50 and the PCB plate body 11 are in abutment to conduct heat to the PCB plate body 11.

[0051] Specifically, the insulating heat-conducting sheet 50 and the PCB plate body 11 are in abutment, so that the heat of the PCB plate body 11 can be transmitted to the lower shell 30 through the insulating heat-conducting sheet 50, avoiding the PCB plate 10 from being damaged due to overheating.

[0052] In the embodiment, the circumferential outer wall 33 of the lower shell 30 is provided with a damping part 60, the damping part 60 is provided with a first damping hole 61, the controller further comprises a damping block 62, the damping block 62 is provided with a second damping hole 63, the damping block 62 and the damping part 60 both extend along a first preset direction, so that the damping block 62 and the damping part 60 are tightly connected by penetrating the third fastener through the first damping hole 61 and the second damping hole 63; wherein the circumferential outer wall of the damping block 62 and the circumferential outer wall of the upper shell 20 abut.

[0053] Specifically, the third fastener penetrates through the first damping hole 61 and the second damping hole 63 to tightly connect the damping block 62 and the damping part 60, so that the damping block 62 can buffer the vibration generated by the controller and reduce the working noise of the controller.

[0054] Specifically, the third fastener is six M6 bolts.

[0055] Specifically, the third fastener is six M6 bolts.

[0056] In the embodiment, the damping part 60 is a plurality of damping parts 60, the plurality of damping parts 60 are arranged at intervals along the circumferential direction of the lower shell 30, and the damping block 62 is a plurality of damping blocks 62, the plurality of damping blocks 62 and the plurality of damping parts 60 are arranged one by one.

[0057] Specifically, the plurality of damping parts 60 collectively buffer the vibration generated by the controller, which further helps to reduce the working noise of the controller; wherein the damping part 60 is six.

[0058] Specifically, the upper shell 20 is provided with a plurality of first heat dissipation fins 222, which conduct heat to the upper shell 20, so that the internal cavity of the controller can communicate with the outside, which helps the heat in the internal cavity of the controller to escape to the outside smoothly, avoiding overheating and damage of the controller. Wherein, the plurality of insulating heat-conducting sheets 50 are arranged at intervals along the second preset direction, the distance between adjacent two insulating heat-conducting sheets 50 is 10mm, the height of each insulating heat-conducting sheet 50 is 19mm, and the thickness is 3mm.

[0059] Specifically, the upper shell 20 is provided with a label sticking area 231, which is used to mark relevant information; the upper shell 20 is also provided with a waterproof and dustproof air hole 242, which is used to install a waterproof and dustproof air plug, and the waterproof and dustproof air plug is used to balance the air pressure difference between the inside and outside of the controller.

[0060] Specifically, the lower shell 30 is provided with a plurality of second heat dissipation fins 221, the distance between adjacent two second heat dissipation fins 221 is 7mm, the height of each second heat dissipation fin 221 is 16mm, and the thickness is 3mm.

[0061] Specifically, the upper shell 20 and the lower shell 30 are both made of an aluminum alloy material.

[0062] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0063] The controller comprises a PCB plate 10, an upper shell 20 and a lower shell 30, the PCB plate 10 comprises a PCB plate body 11 and a pressing edge 12, the PCB plate body 11 is provided with a plug connector 13, the circumferential inner wall 32 of the lower shell 30 is provided with a crimping portion 31, and the upper shell 20 is provided with a crimping protrusion 21. The crimping protrusion 21 of the upper shell 20 is arranged on the pressing edge 12, so that the pressing edge 12 abuts against the crimping portion 31, the crimping protrusion 21 limits and fixes the PCB plate 10, and the shaking of the PCB plate relative to the upper shell 20 and the lower shell 30 is avoided; meanwhile, the upper shell 20 and the PCB plate body 11 are bonded through a first adhesive layer 40, so that the upper shell 20 and the PCB plate 10 are tightly connected, the shaking of the PCB plate 10 relative to the upper shell 20 is avoided, and thus the problem that the PCB plate is prone to shaking relative to the upper shell and the lower shell in the prior art is solved.

[0064] For ease of description, spatial relative terms such as "above", "upper", "top", "bottom", and the like can be used herein for describing the spatial relationship between one device or feature and another device or feature as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0065] In addition, it should be noted that the use of the terms "first", "second", and the like to qualify parts is merely for the convenience of distinguishing the corresponding parts, and the above terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of protection of the present application.

[0066] The above only describes preferred embodiments of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A controller characterized by comprising: The utility model relates to a kind of PCB board and shell structure, including: PCB board (10), the PCB board (10) includes PCB board body (11) and pressing edge (12), plug-in piece (13) is arranged on the PCB board body (11), the pressing edge (12) is arranged on the circumferential outside of the PCB board body (11); Upper shell (20) and lower shell (30), along first preset direction, the PCB board (10) is arranged between the upper shell (20) and the lower shell (30), the circumferential inner wall (32) of the lower shell (30) is provided with crimping portion (31), the upper shell (20) is provided with crimping protrusion (21), the crimping protrusion (21) extends along the first preset direction, the crimping protrusion (21) is used to press the setting on the pressing edge (12), to make the pressing edge (12) with the crimping portion (31) abuts; The PCB board body (11) is provided with first adhesive layer (40), the first adhesive layer (40) is arranged on the circumferential outside of the plug-in piece (13), and the first adhesive layer (40) is used to bond the upper shell (20) and the PCB board body (11).

2. The controller of claim 1, wherein, The lower shell (30) includes bottom and circumferential side, the circumferential side is arranged around the bottom, the circumferential side and the bottom are connected, the circumferential side includes the circumferential inner wall (32), circumferential outer wall (33) and end wall (34), the circumferential inner wall (32) and the circumferential outer wall (33) both extend along the first preset direction, the end wall (34) is arranged between the circumferential inner wall (32) and the circumferential outer wall (33); The end wall (34) is provided with second adhesive layer (41), and the second adhesive layer (41) is used to bond the upper shell (20) and the end wall (34).

3. The controller of claim 1, wherein, The bottom of the lower shell (30) is provided with protruding portion (35), the protruding portion (35) protrudes in the direction of being close to the PCB board (10) along the first preset direction, the protruding portion (35) is provided with third adhesive layer (70), and the third adhesive layer (70) is used to bond the PCB board body (11) and the protruding portion (35).

4. The controller of claim 1, wherein, The inner wall of the bottom of the lower shell (30) is provided with first fastening hole (36), and the PCB board body (11) is provided with second fastening hole (14), so that the PCB board (10) and the lower shell (30) are fastened and connected by first fastener (1) through the first fastening hole (36) and the second fastening hole (14).

5. The controller of claim 1, wherein, The upper shell (20) is provided with first fastening portion (22), the first fastening portion (22) is provided with third fastening hole (23), the circumferential outer wall (33) of the lower shell (30) is provided with second fastening portion (37), the second fastening portion (37) is provided with fourth fastening hole (371), so that the lower shell (30) and the upper shell (20) are fastened and connected by second fastener through the third fastening hole (23) and the fourth fastening hole (371).

6. The controller of claim 1, wherein, The inner wall of the bottom of the lower shell (30) is provided with a limiting shaft (38) extending along the first preset direction, and the PCB plate body (11) is provided with a limiting hole (24) through which the limiting shaft (38) is arranged, so that the limiting shaft (38) limits the PCB plate (10).

7. The controller of claim 6, wherein, The limiting hole (24) is two, one of the two limiting holes (24) is circular in axial end face, and the other of the two limiting holes (24) is elliptical in axial end face, the long side of the elliptical shape extends along the second preset direction, and the limiting shaft (38) is two, the two limiting shafts (38) are arranged one by one corresponding to the two limiting holes (24).

8. The controller of claim 3, wherein, The protruding part (35) is provided with a avoiding gap (351), and the controller further comprises an insulating heat conducting sheet (50), the insulating heat conducting sheet (50) is embedded in the avoiding gap (351), and the insulating heat conducting sheet (50) and the PCB plate body (11) are abutted to conduct heat to the PCB plate body (11).

9. The controller of claim 1, wherein, The circumferential outer wall (33) of the lower shell (30) is provided with a damping part (60), the damping part (60) is provided with a first damping hole (61), the controller further comprises a damping block (62), the damping block (62) is provided with a second damping hole (63), the damping block (62) and the damping part (60) extend along the first preset direction, so that the third fastener is arranged through the first damping hole (61) and the second damping hole (63), so that the damping block (62) and the damping part (60) are tightly connected; wherein, the circumferential outer wall of the damping block (62) and the circumferential outer wall of the upper shell (20) are abutted.

10. The controller of claim 9, wherein, The damping part (60) is a plurality of, a plurality of the damping part (60) is arranged along the circumferential direction of the lower shell (30), the damping block (62) is a plurality of, a plurality of the damping block (62) and a plurality of the damping part (60) are arranged one by one.

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