Controller

Abstract

The utility model discloses a controller which comprises a shell and a circuit board. The shell comprises a shell body, protection parts connected to the shell body and a connecting base, the shell body is provided with a containing cavity, first openings are formed in the two sides of the shell body in the first direction and communicate with the containing cavity, the number of the protection parts is the same as that of the first openings, the protection parts and the first openings are arranged in a one-to-one mode, and the protection parts surround the first openings. The protection part protrudes out of the shell body in the first direction, the protection part and the shell body are of an integrated structure, a receding notch is formed in the side, in the second direction, of the protection part, the orthographic projection of the protection part covers at least part of the orthographic projection of the connecting base in the second direction, and the orthographic projection of the connecting base is located in the receding notch. The circuit board is arranged in the containing cavity and electrically connected with connecting interfaces, and at least part of the connecting interfaces are arranged towards the first opening. The controller is high in protection level, and the reliability of the controller is improved.

Description

Technical Field

[0001] This application belongs to the field of control device technology, and in particular relates to a controller. Background Technology

[0002] A controller is a master control device that controls the starting, speed regulation, braking, and reversing of a motor by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to a predetermined sequence.

[0003] In related technologies, the controller's protection level is insufficient, which affects the controller's reliability. Utility Model Content

[0004] This application provides a controller with a high protection level, which improves the reliability of the controller.

[0005] This application provides a controller including a housing and a circuit board. The housing includes a housing body, protective portions connected to the housing body, and a connecting seat. The housing body has a receiving cavity, and first openings are provided on both sides of the housing body along a first direction. The first openings communicate with the receiving cavity. The number of protective portions is the same as the number of first openings and is arranged one-to-one. The protective portions surround the first openings and protrude from the housing body along the first direction, forming an integral structure with the housing body. A clearance notch is provided on one side of the protective portion along a second direction. Along the second direction, the orthographic projection of the protective portion covers at least a portion of the orthographic projection of the connecting seat, and the orthographic projection of the connecting seat is located within the clearance notch. The circuit board is disposed in the receiving cavity, and a connection interface is electrically connected to the circuit board. At least a portion of the connection interface is oriented towards the first opening. The first direction and the second direction intersect.

[0006] In some embodiments, the protective part includes a first baffle and second baffles symmetrically distributed on both sides of the first baffle. The second baffles are connected to the first baffles by an arc transition, and a clearance notch is provided between the two second baffles. Both the first baffles and the second baffles are connected to the shell body.

[0007] In some embodiments, the housing body is further provided with an operation port and a cover plate disposed on the operation port. The operation port is in communication with the receiving cavity. Along the second direction, the projected portion of the circuit board is located within the orthographic projection of the operation port. The cover plate can be opened and disposed on the operation port.

[0008] In some embodiments, the controller further includes a first sealing component, and at least one of the cover plate and the housing body is provided with a sealing groove. The first sealing component is disposed around the operating port and extends at least partially into the sealing groove and is clamped and fixed between the cover plate and the housing body.

[0009] In some embodiments, the housing is provided with a plurality of sealing grooves, each sealing groove being annular and surrounding the operating port, with adjacent sealing grooves spaced apart from each other, and the first sealing assembly including a plurality of sealing rings, with a sealing ring provided in each sealing groove.

[0010] In some embodiments, the operating port is at least partially disposed on one side wall of the shell body in the second direction, and both the cover plate and the shell body are provided with sealing grooves. The sealing grooves are annular and are offset from each other along the second direction. The first sealing assembly includes a plurality of sealing rings, and each sealing groove is provided with a sealing ring.

[0011] In some embodiments, the sealing assembly includes a sealing ring and a membrane, the membrane at least surrounding the outer peripheral surface of the sealing ring.

[0012] In some embodiments, a first connection hole is provided on the circuit board, a second connection hole is provided on the housing body, the circuit board is connected to the housing body by a first fastener passing through the first connection hole and the second connection hole, and a second sealing component is provided around the second connection hole on the housing body.

[0013] In some embodiments, the circuit board includes a board body and a conversion circuit disposed on the board body; the conversion circuit can convert a received NPN input signal into a PNP output signal, or convert a received PNP input signal into an NPN output signal; the conversion circuit is electrically connected to the connection interface.

[0014] In some embodiments, the conversion circuit includes an NPN signal to PNP signal circuit, a PNP signal to NPN signal circuit, an input signal channel selection circuit, and an output signal channel selection circuit. The NPN signal to PNP signal circuit can convert the received NPN input signal into a PNP output signal, and the PNP signal to NPN signal circuit can convert the received PNP input signal into an NPN output signal. When the input signal is an NPN signal, the input signal channel selection circuit connects to the NPN signal to PNP signal circuit, and the output signal channel selection circuit connects to the load to output a PNP output signal. When the input signal is a PNP signal, the input signal channel selection circuit connects to the PNP signal to NPN signal circuit, and the output signal channel selection circuit connects to the load to output an NPN output signal.

[0015] This application has at least the following beneficial effects:

[0016] The controller provided in this application includes a housing and a circuit board. The housing includes a housing body, protective parts connected to the housing body, and a connecting seat. The housing body has a receiving cavity, and first openings are provided on both sides of the housing body along a first direction, communicating with the receiving cavity. The number of protective parts is the same as the number of first openings and is arranged one-to-one. The protective parts surround the first openings and protrude from the housing body along the first direction, forming an integral structure with the housing body. A clearance notch is provided on one side of the protective part along a second direction. Along the second direction, the orthographic projection of the protective part covers at least a portion of the orthographic projection of the connecting seat, and the orthographic projection of the connecting seat is located within the clearance notch. The circuit board is disposed within the receiving cavity, and a connection interface is electrically connected to the circuit board, with at least a portion of the connection interface facing the first opening. The protective parts of this controller can provide waterproof and dustproof protection for the first opening and the connecting seat, resulting in a high protection level for the controller and improving its reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the controller provided in one embodiment of this application;

[0019] Figure 2 A schematic diagram of a controller with the cover removed, provided in one embodiment of this application;

[0020] Figure 3 This is a schematic diagram of a conversion circuit provided in one embodiment of this application.

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. Shell; 11. Shell body; 111. First opening; 112. Operating port; 12. Protective part; 121. First baffle; 122. Second baffle; 13. Connecting seat; 131. Third connecting hole;

[0023] 2. Cover plate;

[0024] 3. Conversion circuit; 31. Input signal; 32. Input signal channel selection circuit; 301. NPN input signal; 302. PNP input signal; 311. NPN signal to PNP signal circuit; 312. PNP signal to NPN signal circuit; 321. PNP output signal; 322. NPN output signal; 33. Output signal channel selection circuit;

[0025] X - First direction; Y - Second direction. Detailed Implementation

[0026] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0028] Please see Figure 1 and Figure 2 This application provides a controller, which includes a housing 1 and a circuit board. The housing 1 includes a housing body 11, protective portions 12 connected to the housing body 11, and a connecting seat 13. The housing body 11 has a receiving cavity. The housing body 11 has first openings 111 on both sides along a first direction X. The first openings 111 communicate with the receiving cavity. The number of protective portions 12 is the same as the number of first openings 111, and they are arranged one-to-one. The protective portions 12 surround the first openings 111. The protective portions 12 protrude from the housing body 11 along the first direction X and are integrally formed with the housing body 11. The protective portion 12 has a clearance notch on one side along a second direction Y. Along the second direction Y, the orthographic projection of the protective portion 12 covers at least a portion of the orthographic projection of the connecting seat 13, and the orthographic projection of the connecting seat 13 is located within the clearance notch. The circuit board is disposed within the receiving cavity. The circuit board is electrically connected to a connection interface. At least a portion of the connection interface is disposed facing the first opening 111. The first direction X and the second direction Y intersect.

[0029] The shell 1 can be a cubic structure or a spherical structure. Optionally, the shell 1 is a cubic structure.

[0030] The number of first openings 111 can be two or more. Optionally, the number of first openings 111 is two.

[0031] The shape of the first opening 111 can be a square, a rectangle, or a circle.

[0032] The shape of the operating port 112 can be square, rectangular or circular.

[0033] The orthographic projection of the protective part 12 covers at least a portion of the orthographic projection of the connector 13. This can be either the orthographic projection of the protective part 12 covering a portion of the orthographic projection of the connector 13, or the orthographic projection of the protective part 12 covering the entire orthographic projection of the connector 13.

[0034] The cavity can be cube-shaped or sphere-shaped. Optionally, the cavity can be cube-shaped.

[0035] The angle between the first direction X and the second direction Y can be selected from 80° to 100°, or 90°. The first direction X and the second direction Y can be selected to be perpendicular to each other.

[0036] In summary, the controller provided according to one embodiment of this application includes a housing 1 and a circuit board. The housing 1 includes a housing body 11, protective portions 12 connected to the housing body 11, and a connecting seat 13. The housing body 11 is provided with a receiving cavity, and the housing body 11 has first openings 111 on both sides along a first direction X. The first openings 111 communicate with the receiving cavity. The number of protective portions 12 is the same as the number of first openings 111 and they are arranged one-to-one. The protective portions 12 surround the first openings 111 and protrude from the housing body 11 along the first direction X, forming an integral structure with the housing body 11. The protective portion 12 has a clearance notch on one side along a second direction Y. Along the second direction Y, the orthographic projection of the protective portion 12 covers at least a portion of the orthographic projection of the connecting seat 13, and the orthographic projection of the connecting seat 13 is located within the clearance notch. The circuit board is disposed in the receiving cavity, and the circuit board is electrically connected to a connection interface, at least a portion of which faces the first opening 111. The protective part 12 of the controller can provide waterproof and dustproof protection for the first opening 111 and the connecting seat 13, which makes the controller have a high level of waterproof and dustproof protection and improves the reliability of the controller.

[0037] In some embodiments, the protective part 12 includes a first baffle 121 and second baffles 122 symmetrically distributed on both sides of the first baffle 121. The second baffles 122 are connected to the first baffle 121 by a rounded transition, and a clearance notch is provided between the two second baffles 122. Both the first baffle 121 and the second baffle 122 are connected to the shell body 11.

[0038] Optionally, the second baffle 122 and the first baffle 121 are integral structures.

[0039] One embodiment of the controller provided in this application includes a protective section 12 comprising a first baffle 121 and second baffles 122 symmetrically distributed on both sides of the first baffle 121, thereby enclosing a first opening 111. The arc-shaped transition between the second baffle 122 and the first baffle 121 reduces pressure concentration at the connection point and prevents injury to the user. Furthermore, by connecting both the first baffle 121 and the second baffle 122 to the housing body 11, waterproofing is effectively achieved.

[0040] In some embodiments, the housing body 11 is further provided with an operation port 112 and a cover plate 2 disposed on the operation port 112. The operation port 112 communicates with the receiving cavity. Along the second direction Y, the projected portion of the circuit board is located within the orthographic projection of the operation port 112. The cover plate 2 is openable and disposed on the operation port 112.

[0041] The shape of the operating port 112 can be square, rectangular or circular.

[0042] The shape of the cover plate 2 can be square, rectangular or circular.

[0043] One embodiment of the controller provided in this application allows operators to operate the circuit board by providing an operation port 112 on the housing body 11, with the projected portion of the circuit board located within the orthographic projection of the operation port 112. A cover 2, which can be opened at the operation port 112, provides waterproofing and dustproofing to the housing body 11.

[0044] In some embodiments, the controller further includes a first sealing component, and at least one of the cover plate 2 and the shell body 11 is provided with a sealing groove. The first sealing component is disposed around the operation port 112, and the first sealing component extends at least partially into the sealing groove and is clamped and fixed between the cover plate 2 and the shell body 11.

[0045] The controller provided in one embodiment of this application further improves the waterproof and dustproof effect of the controller by setting a first sealing component and at least partially extending the first sealing component into the sealing groove and clamping and fixing it between the cover plate 2 and the shell body 11.

[0046] In some embodiments, the housing 1 is provided with a plurality of sealing grooves, each sealing groove being annular and arranged around the operating port 112, with adjacent sealing grooves spaced apart from each other, and the first sealing assembly including a plurality of sealing rings, with a sealing ring provided in each sealing groove.

[0047] The number of sealing grooves can be two, three, or more.

[0048] The number of sealing rings can be two, three, or more.

[0049] The sealing ring can be made of rubber.

[0050] The controller provided in one embodiment of this application has multiple sealing grooves on the housing 1. Each sealing groove is annular and surrounds the operation port 112. Adjacent sealing grooves are spaced apart from each other. Each sealing groove is provided with a sealing ring, which further improves the waterproof and dustproof effect of the controller.

[0051] In some embodiments, the operating port 112 is at least partially disposed on one side wall of the shell body 11 in the second direction Y. Both the cover plate 2 and the shell body 11 are provided with sealing grooves. The sealing grooves are annular and are disposed along the second direction Y. The orthographic projections of the sealing grooves on the cover plate 2 and the sealing grooves on the shell body 11 are offset from each other. The first sealing assembly includes a plurality of sealing rings, and each sealing groove is provided with a sealing ring.

[0052] The controller provided in one embodiment of this application has sealing grooves on both the cover plate 2 and the shell body 11. The orthographic projections of the sealing grooves on the cover plate 2 and the sealing grooves on the shell body 11 are staggered to form a serpentine seal, which further improves the waterproof and dustproof effect of the controller.

[0053] In some embodiments, the sealing assembly may further include a membrane that at least surrounds the outer peripheral surface of the sealing ring.

[0054] Alternatively, the film may be a resin film.

[0055] One embodiment of the controller provided in this application further improves the waterproof and dustproof effect of the controller by setting a sealing component including a sealing ring and a membrane, wherein the membrane at least surrounds the outer peripheral surface of the sealing ring.

[0056] In some embodiments, the circuit board is provided with a first connection hole, the housing body 11 is provided with a second connection hole, the circuit board is connected to the housing body 11 by a first fastener passing through the first connection hole and the second connection hole, and the housing body is provided with a second sealing component around the second connection hole.

[0057] Alternatively, the first fastener may be a bolt and a nut.

[0058] The controller provided in one embodiment of this application connects the circuit board and the housing body 11 together by providing a first connection hole on the circuit board and a second connection hole on the housing body 11, with a first fastener passing through the first and second connection holes. The structure is simple and the operation is convenient.

[0059] In some embodiments, the connector 13 is provided with a third connection hole 131, and the second fastener passes through the third connection hole 131 to connect the controller to an external device.

[0060] Optionally, the second fastener may include a screw.

[0061] Please see Figure 3 In some embodiments, the circuit board includes a board body and a conversion circuit 3 disposed on the board body; the conversion circuit 3 can convert the received NPN input signal 301 into a PNP output signal 321, or convert the received PNP input signal 302 into an NPN output signal 322; the conversion circuit 3 is electrically connected to the connection interface.

[0062] In some embodiments, the conversion circuit 3 includes an NPN signal to PNP signal circuit 311, a PNP signal to NPN signal circuit 312, an input signal channel selection circuit 32, and an output signal channel selection circuit 33. The NPN signal to PNP signal circuit 311 can convert the received NPN input signal 301 into a PNP output signal 321, and the PNP signal to NNP signal circuit 312 can convert the received PNP input signal 302 into an NPN output signal 322. When the input signal 31 is an NPN signal, the NPN signal to PNP signal circuit 311 connected to the input signal channel selection circuit 32 is connected to the load through the output signal channel selection circuit 33, and the PNP output signal 321 is output. When the input signal 31 is a PNP signal, the PNP signal to NNP signal circuit 312 connected to the input signal channel selection circuit 32 is connected to the load through the output signal channel selection circuit 33, and the NPN output signal 322 is output.

[0063] One embodiment of the controller provided in this application includes a conversion circuit 3 comprising an NPN signal to PNP signal circuit 311, a PNP signal to NPN signal circuit 312, an input signal channel selection circuit 32, and an output signal channel selection circuit 33. The NPN signal to PNP signal circuit 311 converts the received NPN input signal 301 into a PNP output signal 321, and the PNP signal to NPN signal circuit 312 converts the received PNP input signal 302 into an NPN output signal 322. The input signal channel selection circuit 32 selects to connect to either the NPN signal to PNP signal circuit 311 or the PNP signal to NPN signal circuit 312 according to the type of the input signal 31. The output signal channel selection circuit 33 connects to the corresponding load and outputs an output signal identical to that of the load. That is, when the input signal 31 is an NPN level signal, the input signal channel selection circuit 32 connects to the NPN signal to PNP signal conversion circuit 311, outputting a PNP type output signal, and the output signal channel selection circuit 33 connects to the load with a PNP signal type. When the input signal 31 is a PNP level signal, the input signal channel selection circuit 32 connects to the PNP signal to NPN signal conversion circuit 312, outputting an NPN output signal 322, which is then connected to the NPN signal type load by the output signal channel selection circuit 33.

[0064] The NPN signal to PNP signal circuit 311, the PNP signal to NPN signal circuit 312, the input signal channel selection circuit 32, and the output signal channel selection circuit 33 are all well known to those skilled in the art and will not be described in detail here.

[0065] In some embodiments, the input signal channel selection circuit 32 and the output signal channel selection circuit 33 are selection switches, which include either a DIP switch or a knob. Optionally, the selection switch includes a DIP switch.

[0066] One embodiment of the controller provided in this application sets the input signal channel selection circuit 32 and the output signal channel selection circuit 33 as selection switches. The selection switches include one of the two, a DIP switch and a knob. The operator can connect or disconnect the input signal channel selection circuit 32 and the output signal channel selection circuit 33 by moving the DIP switch or rotating the knob.

[0067] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A controller, characterized in that, include: The housing includes a housing body, protective portions connected to the housing body, and a connecting seat. The housing body is provided with a receiving cavity. The housing body has first openings on both sides along a first direction, and the first openings communicate with the receiving cavity. The number of protective portions is the same as the number of the first openings and is provided one-to-one. The protective portions surround the first openings and protrude from the housing body along the first direction, forming an integral structure with the housing body. The protective portion has a clearance notch on one side along a second direction. Along the second direction, the orthographic projection of the protective portion covers at least a portion of the orthographic projection of the connecting seat, and the orthographic projection of the connecting seat is located within the clearance notch. A circuit board is disposed within the receiving cavity, and the circuit board is electrically connected to a connection interface, at least a portion of which is oriented toward the first opening; the first direction intersects with the second direction.

2. The controller according to claim 1, characterized in that, The protective part includes a first baffle and second baffles symmetrically distributed on both sides of the first baffle. The second baffles are connected to the first baffles by an arc transition. The clearance notch is provided between the two second baffles. Both the first baffle and the second baffle are connected to the shell body.

3. The controller according to claim 1, characterized in that, The shell body is also provided with an operation port and a cover plate disposed on the operation port. The operation port is connected to the receiving cavity. Along the second direction, the orthographic projection of the circuit board is located within the orthographic projection of the operation port. The cover plate is openable and disposed on the operation port.

4. The controller according to claim 3, characterized in that, The controller further includes a first sealing component, on which at least one of the cover plate and the shell body is provided a sealing groove. The first sealing component is arranged around the operating port, and the first sealing component extends at least partially into the sealing groove and is clamped and fixed between the cover plate and the shell body.

5. The controller according to claim 4, characterized in that, The housing is provided with a plurality of sealing grooves, each of which is annular and surrounds the operating port. Adjacent sealing grooves are spaced apart from each other. The first sealing assembly includes a plurality of sealing rings, and each sealing groove is provided with a sealing ring.

6. The controller according to claim 4, characterized in that, The operating port is at least partially disposed on one side wall of the shell body in the second direction. Both the cover plate and the shell body are provided with sealing grooves. Each sealing groove is annular. Along the second direction, the orthographic projections of the sealing grooves on the cover plate and the sealing grooves on the shell body are offset from each other. The first sealing assembly includes multiple sealing rings, and each sealing groove is provided with a sealing ring.

7. The controller according to claim 5 or 6, characterized in that, The sealing assembly further includes a membrane that at least surrounds the outer peripheral surface of the sealing ring.

8. The controller according to claim 1, characterized in that, The circuit board is provided with a first connection hole, and the shell body is provided with a second connection hole. The circuit board is connected to the shell body through a first fastener passing through the first connection hole and the second connection hole. The shell body is provided with a second sealing component around the second connection hole.

9. The controller according to any one of claims 1 to 8, characterized in that, The circuit board includes a board body and a conversion circuit disposed on the board body; The conversion circuit can convert the received NPN input signal into a PNP output signal, or convert the received PNP input signal into an NPN output signal; the conversion circuit is electrically connected to the connection interface.

10. The controller according to claim 9, characterized in that, The conversion circuit includes an NPN signal to PNP signal conversion circuit, a PNP signal to NPN signal conversion circuit, an input signal channel selection circuit, and an output signal channel selection circuit; The NPN signal to PNP signal circuit can convert the received NPN input signal into a PNP output signal, and the PNP signal to NPN signal circuit can convert the received PNP input signal into an NPN output signal. When the input signal is an NPN signal, the input signal channel selection circuit connects to the NPN signal to PNP signal circuit, and the output signal channel selection circuit connects to the load to output a PNP output signal. When the input signal is a PNP signal, the input signal channel selection circuit connects to the PNP signal to NPN signal circuit, and the output signal channel selection circuit connects to the load to output an NPN output signal.

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