SUMMERY OF THE UTILITY MODEL
The application provides a controller and vehicle has solved current controller assembling process, and the solder joint between interface module and the circuit board receives the stress effect easily, has reduced joint strength and has leaded to the stability of controller and the problem of reliability reduction.
A first aspect of the present application provides a controller comprising: the connector comprises an interface terminal, a shell and a circuit board arranged on the inner side of the bottom wall of the shell;
the interface terminal comprises an interface component and a connecting shell, the connecting shell is arranged on the bottom wall, the circuit board is positioned between the connecting shell and the bottom wall, the interface component is arranged on the connecting shell, one end of the interface component penetrates through the connecting shell to be electrically connected with the circuit board, and the other end of the interface component is positioned outside the shell;
the interface assembly and the connecting shell move relatively, so that the interface assembly can drive the circuit board to move towards or away from the bottom wall.
Wherein, when the interface terminal is connected with the casing, the interface terminal is connected with the bottom wall of the casing through the connecting casing, the interface component and the connecting casing can move relatively, specifically, the interface component can move towards or away from the bottom wall of the casing relative to the connecting casing, thus, when the interface terminal and the circuit board are fixed and then the connecting casing of the interface terminal is connected with the casing, pressure towards the bottom wall of the casing (for example, pressure of a first fastener such as a screw is screwed) is applied to the connecting casing, the interface component and the circuit board connected with the interface component can move away from the bottom wall of the casing relative to the connecting casing, thereby reducing or eliminating the reaction force generated by the bottom wall to the circuit board and the interface component, further reducing or avoiding the stress generated to the welding point between the interface component and the circuit board in the fixing process of the interface terminal and the casing, and ensuring the stability and reliability of the electric connection between the interface component and the circuit board, thereby effectively improving the stability and reliability of the controller.
In a possible implementation manner, the interface assembly comprises a shell and a pin piece, one end of the pin piece is located in the shell, and the other end of the pin piece sequentially penetrates through the shell and the connecting shell and then is electrically connected with the circuit board. The shell can play effectual fixed action to the plug-in components. Moreover, the shell fixes the pin piece, so that the connection between the pin piece and the circuit board is more stable and reliable, and the stability and reliability of the controller are further improved.
In a possible implementation manner, the connection housing includes a first accommodation cavity, the first end of the outer shell extends into the first accommodation cavity, and the second end of the outer shell is provided with a socket. The interface can be used for inserting a signal plug, the signal plug can be electrically connected with one end of the pin piece in the shell, the other end of the pin piece is electrically connected with the circuit board, and the signal plug can be electrically connected with the vehicle control unit, so that the controller circuit board is electrically connected with the vehicle control unit.
In a possible implementation manner, the connection housing includes a bottom portion and a side portion enclosed on the bottom portion, the bottom portion and the side portion together enclose the first accommodating cavity, the bottom portion is provided with a first assembling hole, one end of the first end of the housing, which faces the circuit board, abuts against the bottom portion, and the pin assembly is arranged on the first assembling hole in a penetrating manner. The connecting shell can limit the interface component, the movement of the interface component towards the circuit board is limited, and the interface component is prevented from being separated from the connecting shell, so that the interface component is arranged on the shell through the connecting shell, and the stability of the interface component arranged on the shell is improved.
In addition, the distance between the interface component and the bottom wall can be effectively controlled, namely the distance between the pin piece and the bottom wall is controlled, the situation that the connection between the pin piece and the circuit board is influenced due to the fact that the position of the interface component is too low is prevented, and the reliability of connection between the pin piece and the circuit board is further improved.
In a possible implementation mode, a clamping groove is formed in the inner wall of the side portion, a clamping piece is arranged on the outer wall of the first end of the shell, the clamping piece is clamped in the clamping groove, and the clamping piece can move towards or deviate from the clamping groove in the moving direction of the bottom.
The cooperation of joint groove and joint spare can restrict the relative removal orbit of connecting the casing of interface module. Simultaneously when one side butt of joint portion towards the bottom on the one side of the adjacent bottom in joint groove, the joint groove can restrict the interface module and continue the removal towards the diapire of casing, avoids the interface module to deviate from connecting the casing. When one side butt that deviates from the bottom in joint portion deviates from one side of bottom in the joint groove on, the joint groove can restrict the interface module and continue to deviate from the removal of casing diapire, avoids interface module to deviate from connecting the casing, further improves reliability and the stability of the electricity connection between interface module and the circuit board, promotes the stability of controller.
In a possible implementation manner, a raised abutting platform is arranged on the inner wall of the side portion, a raised first abutting portion is arranged on the outer wall of one end of the outer shell, and one side of the abutting platform, which is far away from the bottom, abuts against one side of the first abutting portion, which is towards the bottom. Can play further limiting displacement to the removal of shell in the connecting shell like this, guarantee interface module and connect the stability that sets up between the casing, further promote interface module and set up stability on the shell to guarantee the reliability that interface module and circuit board are connected.
In a possible implementation manner, a raised second abutting portion is further provided on the outer wall of the housing, and one side of the second abutting portion facing the side portion abuts against an end face of the side portion facing away from the bottom portion. Can play further spacing effect to the shell like this, guarantee interface module and be connected the stability that sets up between the casing, further promote interface module and set up stability on the shell to guarantee the reliability that interface module and circuit board are connected.
In addition, the second abutting part also has a guiding function, so that the signal plug can be inserted into the signal interface more stably and accurately, the contact between the signal plug and the signal plug is more stable and reliable, and the stability and the reliability of connection between the controller and the vehicle control unit are improved.
In one possible implementation, the device further comprises a first sealing element; the first sealing element is arranged between the outer wall of the first end of the shell and the inner wall of the side part. The first sealing element has sealing performance, and can effectively prevent pollutants outside the shell from entering the shell from a gap between the shell and the connecting shell, so that the damage of the pollutants to the circuit board is effectively reduced or avoided, the protection of the circuit board is improved, and the stability and the reliability of the controller are further improved.
In a possible implementation manner, a first mounting groove is formed in an outer wall of the first end of the housing, and the first sealing element is disposed in the first mounting groove. Like this when interface module in the in-process that relatively connects the casing and remove, can prevent that the phenomenon that the aversion or drop from appearing in first sealing member, avoided reducing the leakproofness between interface module and the connection casing because of the aversion or the drop of first sealing member, further improved the sealed effect of first sealing member, promote the stability and the reliability of controller.
In a possible implementation manner, the connecting device further comprises a fastener, a second assembling hole is formed in one end, away from the circuit board, of the connecting shell, a third assembling hole is formed in the bottom wall, and the connecting shell is connected with the casing through the fastener, the second assembling hole, the third assembling hole and the matching of the fastener and the casing. The controller is convenient to realize and disassemble, and is favorable for maintenance and detection of the controller, so that the service life of the controller is prolonged.
In one possible implementation manner, the casing comprises a bottom wall, a side wall enclosed on the bottom wall, and a top wall covering the side wall;
the diapire the lateral wall and the roof encloses jointly and establishes into second holding chamber, the opening has been seted up on the roof, the circuit board with connect the casing and all be located second holding intracavity, interface module's one end is passed the opening sets up connect on the casing.
In a possible implementation manner, the connecting shell further comprises an annular second sealing element, the second sealing element is arranged between the top wall and the connecting shell, and the opening is located in an area enclosed by an orthographic projection of the second sealing element on the top wall. The second sealing member can promote the top cap and be connected the sealing performance between the casing, can prevent that the pollutant from entering into the casing from the gap between roof and the connection casing to effectively reduce or avoided the destruction of pollutant to the circuit board, increased the guard action to the circuit board, improved the stability and the reliability of controller, promote the life of controller.
In a possible implementation manner, a second mounting groove is formed in an end face of the connection housing facing the top cover, and the second sealing element is disposed in the second mounting groove. The second mounting groove can play certain fixed and limiting displacement to the second sealing member, makes the second sealing member can be better fixed between roof and connection casing to effectively prevent the phenomenon that the second sealing member from shifting or droing from appearing, improve the reliability and the stability of second sealing member, further improve the roof and connect the leakproofness between the casing, promote the stability and the reliability of controller.
In one possible implementation, the pin is soldered to the circuit board.
In a possible implementation manner, a positioning part is arranged at one end of the connecting shell facing the circuit board, and a positioning part matched with the positioning part is arranged on the circuit board. The setting element can insert and establish in location portion, plays fixed effect to the relative position of contact pin spare and circuit board, makes and can stabilize relatively between contact pin spare and the circuit board to make the contact pin spare when being connected with the circuit board electricity, more convenient operation, and effectively improved reliability and the fastness of being connected between contact pin spare and the circuit board.
A second aspect of the present application provides a vehicle comprising a drive device and a controller as described in any of the above, the controller being connected to the drive device.
Detailed Description
The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
For example, the three-electric system comprises a motor controller, the motor controller is connected with the vehicle controller, so that the vehicle controller and the motor controller can transmit data signals to each other, if a start button is pressed on the vehicle controller, a start signal can be transmitted to the motor controller from the vehicle controller, and the motor controller can start the motor after receiving the start signal, so that the vehicle is started.
Generally, a motor controller is connected with a vehicle control unit through a signal terminal to realize mutual transmission of data signals, for example, the motor controller includes a housing, a circuit board and an interface terminal, wherein the circuit board is located in the housing, and the interface terminal is disposed on the housing. The interface terminal comprises a shell and an interface component arranged on the shell, wherein one end of the interface component extends into the shell and is electrically connected with the circuit board. The other end of the interface component is positioned outside the machine shell, the other end of the interface terminal is provided with a plug interface, the plug interface can be used for plugging a signal plug, the signal plug is inserted into the plug interface and is electrically connected with the interface component, and the signal plug can be electrically connected with the vehicle control unit, so that the electric connection between the motor controller and the vehicle control unit is realized.
In the manufacturing and assembling process of the driving controller, the pin members of the interface terminals and the circuit board are usually connected by soldering, and then the interface terminals and the circuit board are fixed on the chassis together. Specifically, the interface terminal and the housing may be connected by a screw fastener, wherein the housing of the interface terminal is connected to the bottom wall of the housing, and the circuit board is located on the bottom wall of the housing.
However, in the process of fixing the interface terminal to the chassis, for example, in the process of screwing the screw, an acting force toward the bottom wall of the chassis is applied to the interface terminal, the circuit board is located on the bottom wall of the chassis, and the interface assembly is welded to the circuit board, so that the interface assembly and the circuit board are pressed, that is, the bottom wall of the chassis has a supporting pressure in the opposite direction to the interface assembly and the circuit board, and a pressing stress is generated on a welding point between the interface assembly and the circuit board, which affects the electrical connection strength between the interface assembly and the circuit board, reduces the reliability and stability of the controller, and also negatively affects the connection stability between the driving controller and the vehicle controller.
In the related art, in order to reduce the stress generated to the solder joint between the interface assembly and the circuit board during the connection of the interface terminal and the housing. Also, fix interface terminal and casing together earlier, then with circuit board and casing welding, at last with interface terminal and circuit board welded connection's mode again, however, just so increased one step of welding process, greatly reduced production efficiency, increased economic cost moreover, be unfavorable for the high-efficient production of product.
Based on the technical problem, the embodiment of the application provides a controller and a vehicle, and the controller can reduce or avoid the stress of welding spots between an interface component and a circuit board in the fixing process of an interface terminal and a shell, so that the connection fastness of the interface component and the circuit board is improved, and the stability and the reliability of the controller are improved. Meanwhile, welding procedures are reduced, and production efficiency is improved.
The Vehicle may be an electric Vehicle/Electric Vehicle (EV), a pure electric Vehicle (PEV/BEV), a Hybrid Electric Vehicle (HEV), an extended range electric Vehicle (REEV), a plug-in hybrid electric Vehicle (PHEV), a New Energy Vehicle (New Energy Vehicle), or the like.
The vehicle may include a drive device, which may be a motor, an engine, or the like, and a controller, which may be a motor controller or an engine controller, or the like, connected to the drive device. The controller can be used in a driving system of a locomotive to control a driving device, for example, the controller can be applied to an engine automobile as an engine controller to control the starting and stopping of an automobile engine. Alternatively, the controller may be applied to an electric vehicle, an electric-only vehicle, a hybrid vehicle, an extended-range electric vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc. as a motor controller to control the start and stop of a motor in the vehicle. By connecting the controller to the vehicle control unit, the vehicle control unit can control the drive device of the vehicle.
In addition, the controller may also be another controller, for example, a Power controller or a Power module, specifically, a Power Distribution Unit (PDU), a Vehicle Control Unit (VCU), or the like.
The controller provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings, taking the controller as a motor controller as an example.
Fig. 1 is an assembly schematic diagram of an interface terminal according to an embodiment of the present application.
The embodiment of the present application provides a controller, as shown in fig. 1, including an interface terminal 20, a housing (not shown), and a circuit board 30 disposed inside a bottom wall 11 of the housing, wherein the circuit board 30 may be a Printed Circuit Board (PCB), and the PCB may receive and process data signals. One end of the interface terminal 20 is electrically connected to the circuit board 30, and the other end of the interface terminal can be electrically connected to the vehicle controller, so that the controller 100 is electrically connected to the vehicle controller to transmit data signals.
Specifically, the interface terminal 20 may include an interface assembly 21 and a connecting housing 22, wherein the interface assembly 21 is disposed on the connecting housing 22, the connecting housing 22 is disposed on the bottom wall 11 of the casing, and the circuit board 30 is located between the connecting housing 22 and the bottom wall 11 of the casing. One end of the interface module 21 passes through the connecting housing 22 to be electrically connected to the circuit board 30, and the other end of the interface module 21 is located outside the chassis to be connected to the vehicle control unit.
Fig. 2 is a schematic structural diagram of an interface terminal according to an embodiment of the present disclosure, and fig. 3 is a schematic assembly diagram of an interface terminal and a signal plug according to an embodiment of the present disclosure.
As shown in fig. 1 and fig. 2, the interface module 21 may include a pin member 212 and a housing 211, one end of the pin member 212 is located in the housing 211, and the other end of the pin member 212 sequentially passes through the housing 211 and the connection housing 22 to be electrically connected to the circuit board 30, wherein the pin member 212 may be connected to the circuit board 30 by soldering.
Referring to fig. 2, a socket 2115 may be opened at the second end of the housing 211, the socket 2115 is used for matching with a plug, for example, as shown in fig. 3, the socket 2115 may be used for plugging a signal plug 200, the signal plug 200 is disposed at the second end of the housing 211 through the socket 2115, the signal plug 200 may be electrically connected to one end of a pin element 212 in the housing 211, the other end of the pin element 212 is electrically connected to the circuit board 30, and the signal plug 200 may be electrically connected to the vehicle controller, so that the circuit board 30 of the controller 100 is electrically connected to the vehicle controller.
In this embodiment, the molding material of the housing 211 may be a plastic material, and the pin member 212 may be integrally formed with the housing 211 by injection molding, for example, in the process of molding the housing 211, the pin is disposed in a molding mold of the housing 211, and after the housing 211 is cooled and solidified, the pin member 212 is fixed in the housing 211. The housing 211 may effectively secure the pin member 212. Moreover, the fixing of the housing 211 to the pin 212 can also make the connection between the pin 212 and the circuit board 30 more stable and reliable, further improving the stability and reliability of the controller 100.
Fig. 4 is a cross-sectional view of an interface terminal provided in an embodiment of the present application in one state, and fig. 5 is a cross-sectional view of an interface terminal provided in an embodiment of the present application in another state.
As shown in fig. 4 and 1, when the interface terminal 20 is connected to the housing 10, the interface terminal 20 is connected to the bottom wall 11 of the housing 10 through the connecting housing 22.
Wherein the interface module 21 and the connection housing 22 are movable relative to each other, for example, as shown by the arrows in fig. 4 and 5, the interface module 21 can move relative to the connection housing 22 toward or away from the bottom wall 11 of the housing 10.
Thus, when the connecting housing 22 of the interface terminal 20 is connected to the bottom wall 11 of the housing 10 after the interface terminal 20 and the circuit board 30 are fixed, by applying a pressure to the connecting housing 22 toward the bottom wall 11 (e.g., a pressure applied by a fastener such as a screw), the interface module 21 and the circuit board 30 connected to the interface module 21 can move relative to the connecting housing 22 away from the bottom wall 11 of the housing 10, thereby reducing or eliminating the forces exerted by the bottom wall 11 on the circuit board 30 and the interface assembly 21, and further reducing or avoiding the forces exerted by the bottom wall 11 on the circuit board 30 and the interface assembly 21 during the process of fixing the interface terminals 20 to the housing 10, the stress generated to the solder joint between the interface module 21 and the circuit board 30 ensures the electrical connection strength between the interface module 21 and the circuit board 30, and then the stability and the reliability of the controller 100 are effectively improved, and simultaneously, the connection performance between the controller 100 and the whole vehicle controller is also favorably improved.
In addition, due to the relative movement between the interface module 21 and the connecting housing 22, even if the interface terminal 20 is connected to the bottom wall 11 of the housing 10 through the connecting housing 22 after the interface terminal 20 is soldered to the circuit board 30, the influence on the solder joint between the interface module 21 and the circuit board 30 during the connection process can be reduced or avoided. Therefore, in the assembling process, the interface component 21 of the interface terminal 20 and the circuit board 30 can be firstly connected by welding, and then connected with the casing 10 through the connecting shell 22, so that the interface terminal 20 and the circuit board 30 can be jointly connected with the casing 10, the process of welding the circuit board 30 and the casing 10 independently is reduced, the production and assembling speed of the controller 100 can be effectively increased, the production efficiency is effectively improved, and the economic cost is reduced.
Referring to fig. 5, the positioning member 224 may be disposed on the connecting housing 22, and the circuit board 30 may be disposed with a positioning portion (not shown), so that the positioning member 224 and the positioning portion cooperate with each other to fix the relative positions of the circuit board 30 and the pin member 212, so that the pin member 212 is more stable and reliable in the process of connecting with the circuit board 30. Specifically, for example, a positioning member 224 may be disposed on an end of the connection housing 22 facing the circuit board 30, and a positioning portion may be disposed on a portion of the circuit board 30 corresponding to the positioning member 224.
Wherein, the positioning element 224 may be a protruding element on one end of the connection housing 22 facing the circuit board 30, the positioning portion may be a jack matched with the positioning element 224, in the process of connecting the pin element 212 with the circuit board 30, the positioning element 224 may be inserted in the positioning portion (see fig. 1), which plays a role in fixing the relative position of the pin element 212 and the circuit board 30, so as to make the pin element 212 and the circuit board 30 relatively stable, thereby making the pin element 212 electrically connected with the circuit board 30, more convenient to operate, and effectively improving the reliability and firmness of the connection between the pin element 212 and the circuit board 30.
As shown in fig. 5, the connecting housing 22 includes a first receiving cavity 221, a first end of the outer shell 211 extends into the first receiving cavity 221, and a second end of the outer shell 211 is located outside the first receiving cavity 221 for inserting into the signal plug 200.
The pin member 212 may include a plurality of sub-pins, and the plurality of sub-pins may be arranged according to a certain rule. The connecting housing 22 has a first mounting hole (not shown) at an end facing the circuit board 30, and the pin 212 is inserted into the first mounting hole, i.e. the pin 212 can pass through the first mounting hole to connect with the circuit board 30.
Specifically, the connecting housing 22 may include a bottom portion 226 and a side portion 227 surrounding the bottom portion, the bottom portion 226 and the side portion 227 together surround a first accommodating cavity 221, one surface of the first end of the outer shell 211 facing the circuit board 30 abuts against the bottom portion 226, a first assembling hole is opened in the bottom portion 226 of the connecting housing 22, and the pin 212 may be inserted into the first assembling hole. Therefore, the connecting shell 22 can limit the interface component 21, the movement of the interface component 21 towards the circuit board 30 is limited, and the interface component 21 is prevented from being separated from the connecting shell 22, so that the interface component 21 is arranged on the machine shell 10 through the connecting shell 22, and the arrangement stability of the interface component 21 on the machine shell 10 is improved.
In addition, the distance between the interface component 21 and the bottom wall 11, that is, the distance between the pin 212 and the bottom wall 11, can be effectively controlled, so that the connection between the pin 212 and the circuit board 30 is prevented from being affected due to the excessively low position of the interface component 21, and the reliability of the connection between the pin 212 and the circuit board 30 is further improved.
As shown in fig. 5, a convex abutting platform 223 may be further disposed on the inner wall of the side portion 227, and a convex first abutting portion 2112 may be disposed at a position corresponding to the abutting platform 223 on the outer wall of one end of the housing 211, wherein one side of the abutting platform 223 departing from the bottom 226 and one side of the first abutting portion 2112 facing the bottom 226 are abutted to each other, so that a further limiting effect on the movement of the housing 211 in the connecting housing 22 may be further achieved, the stability of the interface assembly 21 and the connecting housing 22 is ensured, the stability of the interface assembly 21 disposed on the housing 10 is further improved, the reliability of the connection between the pin member 212 and the circuit board 30 is ensured, and the reliability and the stability of the connection between the interface assembly 21 and the circuit board 30 are also improved.
In addition, a second protruding abutting portion 2113 may be further disposed on the outer wall of the housing 211, one side of the second abutting portion 2113 facing the bottom 226 may be abutted against an end surface of the side 227 of the connecting housing 22 away from the bottom 226, so that the second abutting portion 2113 and the connecting housing 22 are abutted against each other through the outer wall of the housing 211, a further limiting effect can be achieved, stability of the interface assembly 21 and the connecting housing 22 is ensured, stability of the interface assembly 21 disposed on the chassis 10 is further improved, and reliability of connection of the interface assembly 21 and the circuit board 30 is ensured.
The second abutting portion 2113 may be a protrusion disposed on the outer wall of the housing 211, for example, the protrusion may be a column structure, so that the second abutting portion 2113 also has a certain guiding and positioning function (see fig. 3), for example, a groove capable of being matched with the second abutting portion 2113 may be disposed on the housing 211 of the interface plug. When the signal plug 200 is inserted into the signal interface, the second abutting portion 2113 is matched with the groove, so that the signal plug 200 can be inserted into the signal interface more stably and accurately, the contact between the signal plug 200 and the signal plug 200 is more stable and reliable, and the stability and reliability of connection between the controller 100 and the vehicle control unit are improved.
As shown in fig. 5, a guide 2114 may be further disposed on a side of the housing 211 facing the bottom 226, and a guide hole 225 may be disposed on an inner wall of the bottom 226, the guide 2114 and the guide hole 225 cooperate with each other to provide a certain guiding and positioning function for the movement between the interface module 21 and the connection housing 22, so that the movement of the interface module 21 relative to the connection housing 22 is more stable and reliable, and the connection between the interface module 21 and the circuit board 30 is improved.
Fig. 6 is another cross-sectional view of an interface terminal according to an embodiment of the present disclosure.
Referring to fig. 6, a clamping groove 222 is further formed in the inner wall of the side portion 227, and a clamping member 2111 is arranged on the outer wall of the housing 211, wherein the clamping member 2111 is located in the clamping groove 222, and the clamping member 2111 can move towards or away from the bottom portion 226 relative to the clamping groove 222. Since the clip 2111 moves in the clip slot 222, the clip slot 222 can define the moving track of the clip 2111, thereby defining the moving track of the interface component 21, and enabling the interface component 21 to move relative to the connecting housing 22 according to the predetermined track. For example, the clamping groove 222 is a vertical square groove, and the clamping member 2111 moves up and down in the clamping groove 222 along the vertical direction, so that the interface component 21 also vertically moves up and down relative to the connecting housing 22, and the interface component 21 can move towards or away from the bottom wall 11 of the housing.
When one side of the clip 2111 adjacent to the bottom 226 abuts against one side of the clip slot 222 adjacent to the bottom 226, the clip slot 222 limits the movement of the interface module 21, and can also limit the movement of the interface module 21 continuing to the bottom wall 11 of the housing 10, thereby preventing the interface module 21 from coming off the connecting shell 22.
When one side butt that joint spare 2111 deviates from bottom 226 on one side that joint groove 222 deviates from bottom 226, joint groove 222 also can play limiting displacement to interface module 21, has restricted interface module 21 to continue to deviate from the removal of diapire 11, avoids interface module 21 to deviate from connecting casing 22, further improves reliability and the stability of the electricity connection between interface module 21 and circuit board 30, promotes controller 100's stability.
Fig. 7 is a further cross-sectional view of an interface terminal according to an embodiment of the present disclosure.
Referring to fig. 7, the first sealing member 40 is further included, wherein the first sealing member 40 is disposed between an outer wall of the first end of the housing 211 and an inner wall of the side portion 227, specifically, if the first sealing member 40 is disposed to surround the outer wall of the first end of the housing 211, the first sealing member 40 can perform a certain sealing function between the housing 211 and the connecting casing 22, so that contaminants outside the enclosure 10 can be effectively prevented from entering the enclosure 10 from a gap between the housing 211 and the connecting casing 22, thereby effectively reducing or avoiding damage to the circuit board 30 caused by the contaminants, improving protection of the circuit board 30, and further improving stability and reliability of the controller 100.
Specifically, if a first mounting groove (not shown in the figure) can be formed in the outer wall of the first end of the housing 211, the first mounting groove can be formed around the periphery of the first end of the housing 211, the first sealing element 40 can be disposed in the first mounting groove, and the first mounting groove can perform a good positioning function on the first sealing element 40, so that when the interface assembly 21 moves relative to the connection housing 22, the first sealing element 40 can be prevented from shifting or falling off, thereby preventing the interface assembly 21 from falling off from the connection housing 22 due to the shifting or falling off of the first sealing element 40, further improving the sealing effect of the first sealing element 40, and improving the stability and reliability of the controller 100.
The molding material of the first sealing element 40 may be rubber or plastic, which has high wear resistance and good elasticity, and the cost is low, and the first sealing element 40 made of rubber or plastic is disposed between the housing 211 and the connecting housing 22, so that the cost of the controller 100 can be reduced while the sealing performance between the housing 211 and the connecting housing 22 is effectively improved.
Fig. 8 is a cross-sectional view of a controller provided in an embodiment of the present application.
In the embodiment of the present application, referring to fig. 8, the connection housing 22 is connected to the casing 10, specifically, for example, the connection housing 22 and the casing 10 may be connected by a fastening member (not shown in the figure), for example, a second assembly hole (not shown in the figure) may be formed on an end of the connection housing 22 away from the circuit board 30, a third assembly hole (not shown in the figure) may be formed on the bottom wall 11 of the casing 10, and the connection housing 22 is connected to the casing 10 by the fastening member matching with the second assembly hole and the third assembly hole.
The second assembly hole and the third assembly hole may be through holes, or the second assembly hole and the third assembly hole may also be threaded holes, and the fastener may be a single structural member, such as a screw, a pin, and the like.
Alternatively, the fasteners may be two or more structural members. For example, the fastener may include a connecting member and a mating member, and the connecting member may be a screw, a pin, or the like. One end of the connecting piece can be abutted against the shell 10 and cannot pass through the third assembling hole, and the other end of the connecting piece can sequentially pass through the second assembling hole and the third assembling hole and then is tightly connected with the matching piece. So that the coupling housing 22 and the set cover 10 are coupled to each other. It is easy to realize, and convenient to detach is favorable to the maintenance and the detection of controller 100 to improve the life of controller 100.
Alternatively, the fastener may be other structural members capable of achieving a fastening connection.
Referring to fig. 8, the housing 10 may include a bottom wall 11, a side wall 12 and a top wall 13, wherein the side wall 12 is enclosed on the bottom wall 11, the top wall 13 is covered on the side wall 12, the bottom wall 11, the side wall 12 and the top bottom are enclosed together to form a second accommodating cavity 14, an opening 131 is further formed in the top wall 13, the circuit board 30 and the connecting housing 22 are both located in the second accommodating cavity 14, the connecting housing 22 may be opposite to the opening 131, and one end of the interface assembly 21 passes through the opening 131 in the top wall 13 and is disposed on the connecting housing 22.
The bottom wall 11 and the side wall 12 of the casing 10 may be integrally formed, or the bottom wall 11 and the side wall 12 may be separately formed and then connected together, for example, the separately formed bottom wall 11 and the side wall 12 may be connected to each other by snapping, bonding, or fastening. Specifically, the forming manner and the connecting method of the bottom wall 11 and the side wall 12 can be selected and set according to specific requirements of the scene.
The connection between the top wall 13 and the side wall 12 can also be realized by clamping, bonding or fastening, for example, an assembling portion can be provided on the side wall 12, an assembling groove is provided at a position corresponding to the top wall 13, and the top wall 13 and the side wall 12 can be connected to each other by the mutual matching of the assembling portion and the assembling groove. Alternatively, the top wall 13 and the side wall 12 may be connected by means of screw fasteners and fitting holes. Specifically, the connection mode of the top wall 13 and the side wall 12 can be set according to the requirements of a specific scene.
The controller 100 further includes a second sealing element 50, wherein the second sealing element 50 may be an annular structure, the second sealing element 50 may be disposed between the top wall 13 and the connecting housing 22, and the opening 131 of the top wall 13 is located in an area defined by an orthographic projection of the second sealing element 50 on the top wall 13, so that the annular second sealing element 50 may play a certain sealing role between the top wall 13 and the connecting housing 22, and may prevent contaminants from entering the casing 10 from a gap between the top wall 13 and the connecting housing 22, thereby effectively reducing or avoiding damage of the contaminants to the circuit board 30, increasing a protection effect on the circuit board 30, improving stability and reliability of the controller 100, and prolonging a service life of the controller 100.
A second mounting groove (not shown) may be further formed in an end surface of the connection housing 22 facing the top wall 13, and the second sealing element 50 may be disposed in the second mounting groove, if the second mounting groove is also annular. The second mounting groove can play certain fixed and limiting role to second sealing member 50, make second sealing member 50 can be better fixed between roof 13 and connection casing 22 to effectively prevent second sealing member 50 the phenomenon that shifts or drops from appearing, improve second sealing member 50's reliability and stability, further improve roof 13 and connect the leakproofness between the casing 22, promote controller 100's stability and reliability.
The molding material of the second sealing element 50 may be rubber or plastic, which has good wear resistance and high elasticity and low cost, and the rubber or plastic is used for sealing between the top wall 13 and the connecting housing 22, so that the cost of the controller 100 can be effectively reduced while the sealing performance between the top cover and the connecting housing 22 is improved.
In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
The terms "first," "second," "third," "fourth," and the like in the description of the embodiments of the application, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.