CN220491925U - Control device and fuel cell system - Google Patents

Abstract

The present application relates to a control device and a fuel cell system. The control device comprises a power module, a magnetic core and a wire harness assembly, wherein the power module is used for converting a direct current signal into an alternating current signal; the magnetic core is provided with a first through hole, a second through hole and a third through hole which are arranged at intervals; the wire harness assembly includes: the first wire harness, the second wire harness and the third wire harness are electrically connected with the power module and are used for outputting alternating current signals converted by the power module; the first wire harness is arranged in the first through hole in a penetrating mode, the second wire harness is arranged in the second through hole in a penetrating mode, the third wire harness is arranged in the third through hole in a penetrating mode, and the first wire harness, the second wire harness, the third wire harness and the magnetic core are matched and used for filtering interference signals in alternating-current signals. The control device has higher control precision.

Description

Control device and fuel cell system

Technical Field

The present disclosure relates to the field of fuel cell technologies, and in particular, to a control device and a fuel cell system.

Background

At present, the power of the hydrogen fuel cell system is larger and larger, so that the requirements on the control precision and the output reliability of an air compressor controller are higher and higher, the air compressor controller directly controls the rotating speed of the air compressor, compressed air is provided for the hydrogen fuel cell system, oxygen in the compressed air provided by the air compressor and hydrogen in a galvanic pile are subjected to electrochemical reaction, and then the hydrogen fuel cell system outputs electric power to the outside. Therefore, the control accuracy and output reliability of the air compressor controller have a critical effect on the operation reliability of the fuel cell system.

Disclosure of Invention

In view of this, the present application provides a control device and a fuel cell system, the control accuracy of which is high.

The application provides a control device, which comprises a power module, a magnetic core and a wire harness assembly, wherein the power module is used for converting a direct current signal into an alternating current signal; the magnetic core is provided with a first through hole, a second through hole and a third through hole which are arranged at intervals; the wire harness assembly includes: the first wire harness, the second wire harness and the third wire harness are electrically connected with the power module and are used for outputting alternating current signals converted by the power module; the first wire harness is arranged in the first through hole in a penetrating mode, the second wire harness is arranged in the second through hole in a penetrating mode, the third wire harness is arranged in the third through hole in a penetrating mode, and the first wire harness, the second wire harness, the third wire harness and the magnetic core are matched and used for filtering interference signals in alternating-current signals.

Further, the magnetic core comprises a first magnetic part and a second magnetic part, the first magnetic part is provided with a first groove, a second groove and a third groove which are arranged at intervals, the second magnetic part is provided with a fourth groove, a fifth groove and a sixth groove which are arranged at intervals, the first groove and the fourth groove enclose into a first through hole, the second groove and the fifth groove enclose into a second through hole, and the third groove and the sixth groove enclose into a third through hole.

Further, the control device further comprises a shielding piece and a control module, wherein the shielding piece is arranged on the same side of the power module, the magnetic core and the wire harness assembly, the control module is arranged on one side, away from the power module, of the shielding piece, and the shielding piece is used for shielding electromagnetic interference between the power module and the control module; the control module is electrically connected with the power module and is used for controlling the current transformation process of the power module.

Further, the control device further comprises a filter, and the filter is electrically connected with the control module and the power module and is used for filtering a direct current signal input into the control device and outputting the direct current signal to the power module.

Further, the filter is disposed between the power module and the shielding member, and the magnetic core and the filter are disposed in the same layer.

Further, the control device further comprises a heat dissipation piece, the heat dissipation piece is arranged on one side, away from the filter, of the power module, and the heat dissipation piece is used for dissipating heat of the power module and the magnetic core.

Further, the control device further comprises a buffer member, and the buffer member is arranged between the magnetic core and the shielding member.

Further, the control device further comprises a shell, wherein the shell is provided with a limit groove, and the limit groove is used for setting the magnetic core.

Further, the control device comprises a shell, wherein the shell comprises a side wall and a bottom wall which are connected, and the side wall and the bottom wall are enclosed to form an accommodating cavity for accommodating the power module, the magnetic core, the wire harness assembly, the shielding piece, the control module, the filter and the heat dissipation piece; the control device further comprises a first cover plate and a second cover plate, wherein the first cover plate is arranged on one side of the shell, which is away from the bottom wall, and is used for carrying out dust protection on the control device; the second cover plate is arranged on one side of the bottom wall, which is away from the first cover plate, and the bottom wall and the second cover plate enclose a cooling cavity to accommodate the heat dissipation piece.

The application also provides a fuel cell system, which comprises a pile, an air compressor and the control device provided by the application, wherein the air compressor is used for providing compressed air for the pile; the control device is electrically connected with the air compressor and is used for controlling the rotating speed of the air compressor.

In the control device provided by the application, when the first wire harness passes through the first through hole, the alternating current signal in the first wire harness induces the change of the magnetic field in the first through hole, and the magnetic field changed in the first through hole inhibits the interference signal in the alternating current signal of the first wire harness, so that the first wire harness passing through the first through hole can output a stable alternating current signal; when the second wire harness is arranged through the second through hole, the alternating current signal in the second wire harness induces the change of the magnetic field in the second through hole, and the changed magnetic field in the second through hole inhibits the interference signal in the alternating current signal of the second wire harness, so that the second wire harness passing through the second through hole can output a stable alternating current signal; when the third wire harness passes through the third through hole, the alternating current signal in the third wire harness induces the change of the magnetic field in the third through hole, and the magnetic field changed in the third through hole inhibits the interference signal in the alternating current signal of the third wire harness, so that the third wire harness passing through the third through hole can output a stable alternating current signal. The first wire harness, the second wire harness, the third wire harness and the magnetic core are matched to filter interference signals in the alternating current signals, so that the alternating current signals in the first wire harness, the second wire harness and the third wire harness are stable signals, the control device is facilitated to output stable signals, and the control precision and the operation reliability of the control device are improved. In addition, the magnetic core can be right alternating current signal's interference signal in first pencil, second pencil and the third pencil shields, compares in a pencil and sets up the scheme of a filter inductor, and the magnetic core that this application embodiment provided simple structure, and the volume that occupies is less, is favorable to realizing controlling means's miniaturized design and lightweight design.

Drawings

In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a control device according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of an exploded structure of a control device according to an embodiment of the present application;

FIG. 3 is a schematic view of a part of a control device according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of the control device according to an embodiment of the present application along the dashed line box A in FIG. 3;

FIG. 5 is a schematic structural view of a magnetic core according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an exploded view of a magnetic core according to an embodiment of the present application;

FIG. 7 is a circuit block diagram of a control device according to an embodiment of the present application;

FIG. 8 is a schematic view of a portion of a control device according to another embodiment of the present disclosure;

FIG. 9 is a cross-sectional view of a control device according to an embodiment of the present application, taken along the direction B-B in FIG. 8;

FIG. 10 is a schematic structural view of a control device according to another embodiment of the present application;

FIG. 11 is a schematic view of a part of an exploded structure of a control device according to an embodiment of the present application;

fig. 12 is a circuit block diagram of a fuel cell system according to an embodiment of the present application.

Reference numerals illustrate:

100-control device, 110-power module, 111-output port, 120-magnetic core, 121-first through hole, 122-second through hole, 123-third through hole, 124-first magnetic piece, 1241-first groove, 1242-second groove, 1243-third groove, 125-second magnetic piece, 1251-fourth groove, 1252-fifth groove, 1253-sixth groove, 130-harness assembly, 131-first harness, 132-second harness, 133-third harness, 140-shielding piece, 150-control module, 160-filter, 170-heat sink, 171-first heat sink, 172-second heat sink, 180-buffer, 190-housing, 191-limit groove, 192-side wall, 193-bottom wall, 194-housing cavity, 195-first cover plate, 196-second cover plate, 197-cooling cavity, 200-water inlet, 210-water outlet, 220-input plug, 230-output plug, 300-fuel cell system, 310-stack, 320-air compressor.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

At present, the power of the hydrogen fuel cell system is larger and larger, so that the requirements on the control precision and the output reliability of an air compressor controller are higher and higher, the air compressor controller directly controls the rotating speed of the air compressor, compressed air is provided for the hydrogen fuel cell system, oxygen in the compressed air provided by the air compressor and hydrogen in a galvanic pile are subjected to electrochemical reaction, and then the hydrogen fuel cell system outputs electric power to the outside. Therefore, the control accuracy and output reliability of the air compressor controller have a critical effect on the operation reliability of the fuel cell system.

In the hydrogen fuel cell system, the rotational speed of the air compressor reaches 10×10 ⁴ r/min for the air compressor controller needs to output the electric current of high frequency to the air compressor, among the related art, adopts every polarity to connect a filter inductance, and three filter inductance's mode is connected to three polarity realizes filtering the interference wave band in the high frequency current signal, but, every filter inductance all need dispel the heat, and can occupy great volume, and moreover, a plurality of filter inductances of polarity needs to be connected, makes the loss of the power of air compressor great.

Referring to fig. 1 to 4, 8 and 9, the present application provides a control device 100, where the control device 100 includes a power module 110, a magnetic core 120 and a wire harness assembly 130, and the power module 110 is used for converting a direct current signal into an alternating current signal; the magnetic core 120 has a first through hole 121, a second through hole 122 and a third through hole 123 which are arranged at intervals; the wire harness assembly 130 includes: a first wire harness 131, a second wire harness 132 and a third wire harness 133, wherein the first wire harness 131, the second wire harness 132 and the third wire harness 133 are electrically connected to the power module 110, and are used for outputting alternating current signals converted by the power module 110; the first wire harness 131 is arranged through the first through hole 121, the second wire harness 132 is arranged through the second through hole 122, the third wire harness 133 is arranged through the third through hole 123, and the first wire harness 131, the second wire harness 132, the third wire harness 133 and the magnetic core 120 are matched for filtering interference signals in the alternating current signals.

It may be understood that the ac signal is a three-phase ac signal composed of three ac potentials having the same frequency, equal amplitude and sequentially different phases by 120 °, and the first wire harness 131, the second wire harness 132 and the third wire harness 133 respectively transmit three electric signals having the same frequency, equal amplitude and sequentially different phases by 120 °.

As can be appreciated, the magnetic core 120 has a first through hole 121, a second through hole 122 and the third through hole 123 that are disposed at intervals, and magnetic fields are in the first through hole 121, the second through hole 122 and the third through hole 123.

Optionally, the magnetic core 120 includes at least one of ferrite magnet, samarium cobalt magnet, neodymium iron boron magnet, alnico magnet, and iron chromium cobalt magnet.

In this embodiment, when the first wire harness 131 is threaded through the first through hole 121, the alternating current signal in the first wire harness 131 induces a change in the magnetic field in the first through hole 121, and the magnetic field changed in the first through hole 121 suppresses an interference signal in the alternating current signal of the first wire harness 131, so that the first wire harness 131 passing through the first through hole 121 can output a stable alternating current signal; when the second wire harness 132 is threaded through the second through hole 122, the alternating current signal in the second wire harness 132 induces a change in the magnetic field in the second through hole 122, and the changing magnetic field in the second through hole 122 suppresses an interference signal in the alternating current signal of the second wire harness 132, so that the second wire harness 132 passing through the second through hole 122 can output a stable alternating current signal; when the third wire harness 133 is threaded through the third through hole 123, the alternating current signal in the third wire harness 133 induces a change in the magnetic field in the third through hole 123, and the magnetic field changed in the third through hole 123 suppresses an interference signal in the alternating current signal of the third wire harness 133, so that the third wire harness 133 passing through the third through hole 123 can output a stable alternating current signal. The first wire harness 131, the second wire harness 132, the third wire harness 133 and the magnetic core 120 are matched to filter interference signals in the ac signals, so that the ac signals in the first wire harness 131, the second wire harness 132 and the third wire harness 133 are stable signals, which is beneficial for the control device 100 to output stable signals, and improves the control precision and the operation reliability of the control device 100. In addition, the magnetic core 120 can shield the interference signals of the alternating current signals in the first wire harness 131, the second wire harness 132 and the third wire harness 133, and compared with the scheme that one filtering inductor is arranged in one wire harness, the magnetic core 120 provided by the embodiment of the application is simple in structure, occupies a small volume, and is beneficial to realizing the miniaturization design and the light weight design of the control device 100.

Referring to fig. 4 to 6, in some embodiments, the magnetic core 120 includes a first magnetic member 124 and a second magnetic member 125, the first magnetic member 124 has a first groove 1241, a second groove 1242 and a third groove 1243 which are disposed at intervals, the second magnetic member 125 has a fourth groove 1251, a fifth groove 1252 and a sixth groove 1253 which are disposed at intervals, the first groove 1241 and the fourth groove 1251 enclose the first through hole 121, the second groove 1242 and the fifth groove 1252 enclose the second through hole 122, and the third groove 1243 and the sixth groove 1253 enclose the third through hole 123.

In this embodiment, the first magnetic member 124 and the second magnetic member 125 are disposed opposite to each other, and the first groove 1241 and the fourth groove 1251 enclose the first through hole 121 for the first wire harness 131 to pass through; the second groove 1242 and the fifth groove 1252 enclose the second through hole 122 for the second wire harness 132 to pass through; the third groove 1243 and the sixth groove 1253 enclose the third through hole 123, so that the third wire harness 133 may be threaded. When the magnetic core 120 is assembled to the control device 100, one of the first magnetic member 124 and the second magnetic member 125 may be disposed first to allow the first wire harness 131, the second wire harness 132, and the third wire harness 133 to pass through, and the other of the first magnetic member 124 and the second magnetic member 125 may be disposed to form the first through hole 121, the second through hole 122, and the third through hole 123, and the first magnetic member 124 and the second magnetic member 125 facilitate the threading of the wire harness assembly 130, simplifying the assembly process of the magnetic core 120 in the control assembly, and facilitating improvement of the assembly efficiency. In addition, when the magnetic core 120 is applied to the control device 100, the magnetic core 120 can filter the interference signal of the ac signal in the wire harness assembly 130, and a plurality of filter inductors are not required, so that the control device 100 has high control precision and operation reliability.

Optionally, in some embodiments, the first magnetic member 124 and the second magnetic member 125 are separate structures and are identical in structure. In this embodiment, the first magnetic member 124 and the second magnetic member 125 have the same structure, and the same mold can be used for manufacturing the first magnetic member 124 and the second magnetic member 125 during the manufacturing process, which is beneficial to reducing the manufacturing cost of the first magnetic member 124 and the second magnetic member 125, and thus reducing the manufacturing cost of the control device 100.

Optionally, in some embodiments, the first magnetic member 124 and the second magnetic member 125 are integrally formed. In this embodiment, the integrally formed structure has better structural stability and structural strength, and the first magnetic member 124 and the second magnetic member 125 are not easy to be dislocated in the use process, which is beneficial to making the magnetic core 120 fully play the role of filtering the interference signals in the wire harness assembly 130, is beneficial to improving the control precision of the control device 100, and prolongs the service life of the magnetic core 120.

Referring to fig. 1 to 4 and fig. 7 to 9, in some embodiments, the control device 100 further includes a shielding member 140 and a control module 150, the shielding member 140 is disposed on the same side of the power module 110, the magnetic core 120 and the wire harness assembly 130, the control module 150 is disposed on a side of the shielding member 140 facing away from the power module 110, and the shielding member 140 is configured to shield electromagnetic interference between the power module 110 and the control module 150; the control module 150 is electrically connected to the power module 110, and is configured to control a current transformation process of the power module 110.

It is understood that the current converting process of the power module 110 is a process of converting a direct current signal input to the power module 110 into an alternating current signal.

Optionally, the power module 110 is a power device, and the power device processes a direct current signal input to the control device 100 and converts the direct current signal into an alternating current signal.

It is understood that the power module 110 and the control module 150 are disposed on opposite sides of the shield 140.

In this embodiment, the shielding member 140 isolates the power module 110 from the control module 150, so as to shield electromagnetic interference between the power module 110 and the control module 150, so that the control module 150 can function, accurately control the power module 110, enable the power module 110 to stably operate, convert a direct current signal input into the control device 100 into an alternating current signal, and then realize outputting a stable alternating current signal. In addition, the shielding member 140 is beneficial to reducing the loss of electromagnetic interference to the control device 100 and the power module 110, so that the service lives of the control device 100 and the power module 110 are prolonged, the control device 100 can stably operate, and the control precision and the operation reliability of the control device 100 are improved.

Optionally, the shielding member 140 may also be used to shield electromagnetic interference between the control module 150 and the magnetic core 120, the wire harness assembly 130, so as to facilitate the control device 100 to output a stable ac signal.

Optionally, in some embodiments, a side of the shield 140 facing away from the control module 150 abuts the magnetic core 120.

In this embodiment, the magnetic core 120, the shielding member 140 and the control module 150 are sequentially stacked, and one surface of the shielding member 140 away from the control module 150 abuts against the magnetic core 120, so that movement of the magnetic core 120 along the stacking direction of the shielding member 140 and the control module 150 is limited, which is beneficial to improving structural stability of the magnetic core 120 in the control device 100. In the control device 100, the magnetic core 120 can filter interference signals in the ac signal transmitted by the wire harness assembly 130, so that the control device 100 can output stable current, and control accuracy and operation reliability of the control device 100 are improved.

In some embodiments, the control device 100 further includes a filter 160, where the filter 160 is electrically connected to the control module 150 and the power module 110, and is configured to filter a direct current signal input to the control device 100 and output the filtered direct current signal to the power module 110.

Optionally, the filter 160 is a filter capacitor, and the filter capacitor may filter an interference signal in the dc signal of the control device 100, so that the dc signal output to the power module 110 is a stable dc signal.

In this embodiment, the filter 160 is electrically connected to the power module 110, and the filter 160 can filter an interference signal in the dc signal of the control device 100 and output the interference signal to the power module 110, so as to avoid the interference signal in the input dc signal from affecting the current transformation process of the power module 110. In the control device 100 provided by the application, the filter 160 is utilized to shield the interference signal in the input direct current signal and transmit the stable direct current signal to the power module 110, the power module 110 converts the direct current signal into an alternating current signal and transmits the alternating current signal to the outside of the control device 100 through the wire harness assembly 130, the wire harness assembly 130 is matched with the magnetic core 120 to further filter the interference signal in the converted alternating current signal, so that the alternating current signal output to the control device 100 is the stable alternating current signal, and the control precision and the operation reliability of the control device 100 are improved.

In some embodiments, the filter 160 is disposed between the power module 110 and the shield 140, and the magnetic core 120 is disposed in the same layer as the filter 160.

In this embodiment, the shielding member 140, the filter 160, and the power module 110 are sequentially stacked, and a large amount of heat needs to be dissipated during the operation of the power module 110, so that the power module 110 is disposed on the side of the filter 160 facing away from the shielding member 140, which is favorable for thermally conducting connection between the power module 110 and the heat dissipating member 170, so as to timely discharge the heat of the power module 110 during the operation. Further, in order to output the ac signal converted by the filter 160 to the output card 230, the output port 111 needs to be provided in the filter 160 to transmit the ac signal, however, if the output port 111 is provided between the power module 110 and the filter 160, a large amount of space is required to be occupied, so that the output port 111 and the filter 160 are provided in the same layer, and the height of the filter 160 is greater than the height of the output port 111, so that no additional space on the height of the control device 100 is required. The output port 111 is provided in the same layer as the filter 160, and also facilitates assembly of the wire harness assembly 130. Further, the core 120 and the filter 160 are arranged in the same layer, so that when one end of the wire harness assembly 130 is electrically connected with the output port 111 of the power module 110, the other end of the wire harness assembly passes through the core 120, in other words, the core 120, the wire harness assembly 130 and the output port 111 of the power module 110 are arranged in the same layer, thereby preventing the wire harness assembly 130 from falling off from the output port 111 due to the fall in height, improving the electrical connection stability of the wire harness assembly 130 and the power module 110, and avoiding the reduction of the service life of the wire harness assembly 130 due to long-time bending.

Alternatively, the number of the output ports 111 is three, and each of the output ports 111 is electrically connected to one of the first harness 131, the second harness 132, and the third harness 133.

Referring to fig. 1 to 4 and fig. 8 to 11, in some embodiments, the control device 100 further includes a heat dissipation member 170, the heat dissipation member 170 is disposed on a side of the power module 110 facing away from the filter 160, and the heat dissipation member 170 is configured to dissipate heat from the power module 110 and the magnetic core 120.

It is understood that the heat sink 170, the power module 110, and the power module 110 are stacked.

In this embodiment, when the wire harness assembly 130 passes through the first through hole 121, the second through hole 122 and the third through hole 123 of the magnetic core 120, the ac signal transmitted by the wire harness assembly 130 will cause a change in the magnetic field inside the first through hole 121, the magnetic field inside the second through hole 122 and the magnetic field inside the third through hole 123, so that the magnetic core 120 generates heat. The heat dissipation member 170 is disposed in the control device 100, and the heat dissipation member 170 is in heat conduction connection with the magnetic core 120, so that the heat dissipation member 170 is beneficial to timely dissipating heat generated by the magnetic core 120, and the magnetic core 120 is prevented from losing magnetism due to overhigh temperature, thereby ensuring the filtering effect of the magnetic core 120 on interference signals, and finally improving the control precision and the operation reliability of the control device 100. In addition, the power module 110 also generates heat during the working process, and the heat dissipation member 170 is in heat conduction connection with the power module 110, so that the heat generated by the power module 110 is dissipated in time, the problem that the power module 110 cannot work normally due to overhigh temperature is avoided, and the stability of the control device 100 is improved.

In some embodiments, the control device 100 further comprises a buffer 180, the buffer 180 being disposed between the magnetic core 120 and the shield 140.

In this embodiment, the buffer member 180 is disposed between the magnetic core 120 and the shielding member 140, in other words, the magnetic core 120, the buffer member 180, and the shielding member 140 are sequentially stacked, when the magnetic core 120 is assembled in the control device 100, the material of the magnetic core 120 and the material of the shielding member 140 are hard, and the buffer member 180 serves as a buffer layer, and can absorb energy generated by the mutual abutting of the magnetic core 120 and the shielding member 140, so as to prevent the magnetic core 120 and the shielding member 140 from being damaged due to the breakage of the magnetic core 120 caused by the hard contact, thereby being beneficial to making the magnetic core 120 work normally and prolonging the service life of the magnetic core 120, and ensuring the filtering of interference signals in alternating current signals transmitted by the wire harness assembly 130 by the magnetic core 120, so that the control device 100 has higher control precision and operational reliability. In addition, the buffer member 180 can effectively absorb assembly tolerance, so that structural stability of the filter element assembled on the control device 100 is enhanced, and service lives of the filter element and the control device 100 are prolonged.

Alternatively, the cushioning member 180 may be, but is not limited to, a resilient pad, a spring member, a foam member, or the like.

In some embodiments, the control device 100 further includes a housing 190, the housing 190 having a limit slot 191, the limit slot 191 being configured to position the magnetic core 120.

In this embodiment, the housing 190 has a limiting groove 191 provided with the magnetic core 120, and in the process of assembling the magnetic core 120 to the control device 100, the magnetic core 120 is first placed in the limiting groove 191, which is favorable for limiting the position of the magnetic core 120, so as to avoid the influence of shifting of the magnetic core 120 during use to the filtering effect of the interference signal. The limiting groove 191 and the buffer member 180 are matched with the shielding member 140, so that the position of the magnetic core 120 is further limited, the structural stability of the magnetic core 120 assembled in the control device 100 is improved, and the service lives of the filter element and the control device 100 are prolonged.

In some embodiments, the control device 100 includes a housing 190, the housing 190 includes a side wall 192 and a bottom wall 193 connected to each other, and the side wall 192 and the bottom wall 193 enclose a housing cavity 194 for housing the power module 110, the magnetic core 120, the wire harness assembly 130, the shielding member 140, the control module 150, the filter 160, and the heat sink 170; the control device 100 further includes a first cover plate 195 and a second cover plate 196, where the first cover plate 195 is disposed on a side of the housing 190 away from the bottom wall 193 and detachably connected to the side wall 192, and the first cover plate 195 is used for dust protection of the control device 100; the second cover plate 196 is disposed on a side of the bottom wall 193 away from the first cover plate 195 and is detachably connected with the bottom wall 193, and the bottom wall 193 and the second cover plate 196 enclose a cooling cavity 197 to accommodate the heat dissipating member 170.

It will be appreciated that the first cover plate 195 and the second cover plate 196 are disposed on opposite sides of the bottom wall 193.

In this embodiment, the side wall 192 and the bottom wall 193 enclose the accommodating cavity 194 to accommodate the power module 110, the magnetic core 120, the wire harness assembly 130, the shielding member 140, the control module 150, the filter 160, the heat sink 170, and other internal devices, and the side wall 192 and the bottom wall 193 can protect and prevent dust from the internal devices, which is beneficial to prolonging the service life of the control device 100. In addition, the first cover plate 195 is disposed on a side of the housing 190 away from the bottom wall 193 and is detachably connected with the side wall 192, so that the first cover plate 195 is beneficial to assembly and subsequent maintenance of internal devices, and can play a role in dust prevention and collision prevention on the internal devices of the control device 100. Further, the second cover plate 196 and the bottom wall 193 enclose the cooling cavity 197 to accommodate the heat sink 170, and the heat sink 170 can dissipate heat from the power source heat sink 170 and the magnetic core 120; in other words, the power module 110 and the heat sink 170 are disposed on opposite sides of the bottom wall 193 and are in heat conduction connection through the bottom wall 193, and the magnetic core 120 and the heat sink 170 are disposed on opposite sides of the bottom wall 193 and are in heat conduction connection through the bottom wall 193, so as to avoid damage to the power module 110 and the magnetic core 120 due to over-high temperature, which is beneficial to prolonging the service life of the control device 100.

Optionally, the first cover plate 195 may be detachably connected to the side wall 192 by at least one of a threaded connection, a snap-fit connection, or the like.

Optionally, the second cover 196 may be detachably connected to the bottom wall 193 by at least one of a threaded connection, a snap-fit connection, or the like.

Optionally, in some embodiments, the control device 100 further includes a water inlet 200 and a water outlet 210, where the water inlet 200 and the water outlet 210 are in communication with the cooling cavity 197, the water inlet 200 is used for inputting cooling fluid into the cooling cavity 197, the water outlet 210 is used for discharging the cooling fluid in the cooling cavity 197, and the water inlet 200 and the water outlet 210 cooperate with each other to provide circulating cooling fluid for the cooling cavity 197.

In this embodiment, the water inlet 200 and the water outlet 210 are both connected to the cooling cavity 197, so that circulating cooling fluid is input to the cooling cavity 197, and heat of the power module 110 and the magnetic core 120 is timely taken away, so that the temperature of the power module 110 and the temperature of the magnetic core 120 can be controlled within a reasonable range, and the service lives of the power module 110 and the magnetic core 120 can be prolonged.

Alternatively, the cooling fluid may be a cooling liquid, a cooling gas, or the like.

Optionally, in some embodiments, the heat dissipation element 170 includes a plurality of first heat dissipation sub-elements 171 and a plurality of second heat dissipation sub-elements 172, the plurality of first heat dissipation sub-elements 171 and the plurality of second heat dissipation sub-elements 172 are disposed in the cooling cavity 197, and the plurality of first heat dissipation sub-elements 171 are disposed at a side of the bottom wall 193 facing away from the magnetic core 120 at intervals for dissipating heat from the magnetic core 120; the second heat dissipation sub-members 172 are disposed at intervals on a side of the bottom wall 193 facing away from the power module 110, so as to dissipate heat from the power module 110.

In this embodiment, the plurality of first heat dissipation sub-members 171 are disposed in the cooling cavity 197, and the plurality of first heat dissipation sub-members 171 are disposed at intervals on one side of the bottom wall 193 away from the magnetic core 120, when the cooling fluid flows through the first heat dissipation sub-members 171, the contact area between the first heat dissipation sub-members 171 and the cooling fluid is larger, the time for the cooling fluid to flow through the first heat dissipation sub-members 171 is prolonged, the heat exchange capability between the cooling fluid and the first heat dissipation sub-members 171 is enhanced, so that the first heat dissipation sub-members 171 can intensively dissipate heat of the magnetic core 120, the magnetic core 120 is prevented from losing magnetism due to overhigh temperature, the filtering effect of the magnetic core 120 on interference signals is ensured, and the control precision and the operation reliability of the control device 100 are improved. The plurality of second heat dissipation sub-members 172 are disposed in the cooling cavity 197, and the plurality of second heat dissipation sub-members 172 are disposed at intervals on one side of the bottom wall 193 away from the power module 110, when the cooling fluid flows through the second heat dissipation sub-members 172, the contact area between the second heat dissipation sub-members 172 and the cooling fluid is larger, the time for the cooling fluid to flow through the second heat dissipation sub-members 172 is prolonged, the heat exchange capacity between the cooling fluid and the second heat dissipation sub-members 172 is enhanced, the second heat dissipation sub-members 172 can intensively dissipate heat of the power module 110, the power module 110 is prevented from being unable to work normally due to overhigh temperature, the operation reliability of the control device 100 is improved, and the service life of the control device 100 is also prolonged.

Optionally, in some embodiments, the control device 100 further includes an input plug-in 220 and an output plug-in 230, where the input plug-in 220 and the output plug-in 230 are disposed at a side of the side wall 192 facing away from the housing cavity 194, and the input plug-in 220 is used for connecting with an external power supply device to input a power source to the control device 100; the output plug-in 230 is used for being connected with the air compressor 320 to control the rotation speed of the air compressor 320.

In this embodiment, the output plug-in 230 is configured to connect to an external power supply device, so as to transmit the power of the external power supply device to the control apparatus 100, so as to supply power to the internal devices of the control apparatus 100, so as to make the power module 110, the control module 150, the filter 160, etc. operate. The output plug-in 230 is configured to be connected to the air compressor 320, so as to transmit a stable ac signal in the wire harness assembly 130 passing through the magnetic core 120 to the air compressor 320, so as to control the rotation speed of the air compressor 320, thereby realizing precise control of the air compressor 320.

Optionally, in some embodiments, one end of the first wire harness 131 is electrically connected to the power module 110, and the other end of the first wire harness 131 sequentially passes through the first through hole 121 and the output plug 230 to output a stable ac signal; one end of the second wire harness 132 is electrically connected to the power module 110, and the other end of the second wire harness 132 sequentially passes through the second through hole 122 and the output plug 230 to output a stable ac signal; one end of the third wire harness 133 is electrically connected to the power module 110, and the other end of the third wire harness 133 sequentially passes through the third through hole 123 and the output plug 230 to output a stable ac signal.

In this embodiment, the first wire harness 131 is configured to transmit the ac signal converted by the power module 110, and filter the interference signal in the ac signal by penetrating the first through hole 121, and finally transmit the stable ac signal to the outside of the control device 100 through the output plug-in unit 230. The second harness 132 is configured to transmit the ac signal converted by the power module 110, and filter the interference signal in the ac signal by penetrating the second through hole 122, and finally transmit the stable ac signal to the outside of the control device 100 through the output plug-in unit 230. The third wire harness 133 is configured to transmit the ac signal converted by the power module 110, and to filter the interference signal in the ac signal by penetrating the third through hole 123, and finally to transmit the stable ac signal to the outside of the control device 100 through the output plug-in unit 230.

Referring to fig. 12, the present application further provides a fuel cell system 300, where the fuel cell system 300 includes a stack 310, an air compressor 320, and the control device 100 provided herein, and the air compressor 320 is configured to provide compressed air for the stack 310; the control device 100 is electrically connected to the air compressor 320, and the control device 100 is configured to control a rotation speed of the air compressor 320.

In the fuel cell system 300 provided in this embodiment of the present application, the control device 100 is electrically connected to the air compressor 320 and is configured to control the rotation speed of the air compressor 320, the control device 100 outputs a stable ac signal to the air compressor 320, and the control device 100 has higher control precision and operational reliability, and can precisely control the rotation speed of the air compressor 320, so that the air compressor 320 can provide compressed air for the electric pile 310, which is favorable for electrochemical reaction of the electric pile 310, and improves the efficiency of converting electric energy of the fuel cell system 300.

Optionally, in some embodiments, the fuel cell system 300 is a hydrogen fuel cell system 300, the stack 310 includes hydrogen, an output pipe of the air compressor 320 is connected to the stack 310, the air compressor 320 provides compressed air to the stack 310, and oxygen in the compressed air electrochemically reacts with hydrogen in the stack 310 to convert chemical energy into electrical energy.

Reference in the present application to "an embodiment," "implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the embodiments of the present application may be combined arbitrarily without any conflict with each other to form yet another embodiment without departing from the spirit and scope of the present application.

Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or equivalent replaced without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. A control device, characterized in that the control device comprises:

the power module is used for converting the direct current signal into an alternating current signal;

the magnetic core is provided with a first through hole, a second through hole and a third through hole which are arranged at intervals;

a wire harness assembly, the wire harness assembly comprising: the first wire harness, the second wire harness and the third wire harness are electrically connected with the power module and are used for outputting alternating current signals converted by the power module; the first wire harness is arranged in the first through hole in a penetrating mode, the second wire harness is arranged in the second through hole in a penetrating mode, the third wire harness is arranged in the third through hole in a penetrating mode, and the first wire harness, the second wire harness, the third wire harness and the magnetic core are matched and used for filtering interference signals in alternating-current signals.

2. The control device of claim 1, wherein the magnetic core comprises a first magnetic member and a second magnetic member, the first magnetic member has a first groove, a second groove and a third groove which are arranged at intervals, the second magnetic member has a fourth groove, a fifth groove and a sixth groove which are arranged at intervals, the first groove and the fourth groove enclose the first through hole, the second groove and the fifth groove enclose the second through hole, and the third groove and the sixth groove enclose the third through hole.

3. The control device of claim 1, further comprising a shield and a control module, the shield being disposed on a same side of the power module, the magnetic core, and the wire harness assembly, the control module being disposed on a side of the shield facing away from the power module, the shield being configured to shield electromagnetic interference between the power module and the control module; the control module is electrically connected with the power module and is used for controlling the current transformation process of the power module.

4. A control device according to claim 3, further comprising a filter electrically connected to the control module and the power module, for filtering a dc signal input to the control device and outputting the filtered dc signal to the power module.

5. The control device of claim 4, wherein the filter is disposed between the power module and the shield, and the magnetic core is disposed in a same layer as the filter.

6. The control device of claim 4, further comprising a heat sink disposed on a side of the power module facing away from the filter, the heat sink configured to dissipate heat from the power module and the magnetic core.

7. A control device according to claim 3, further comprising a buffer member disposed between the magnetic core and the shield member.

8. The control device of claim 1, further comprising a housing having a limit slot for positioning the magnetic core.

9. The control device of claim 6, wherein the control device comprises a housing comprising connected side walls and a bottom wall, the side walls and the bottom wall enclosing a receiving cavity to receive the power module, magnetic core, wire harness assembly, shield, control module, filter, and heat sink; the control device further comprises a first cover plate and a second cover plate, wherein the first cover plate is arranged on one side of the shell, which is away from the bottom wall, and is used for carrying out dust protection on the control device; the second cover plate is arranged on one side of the bottom wall, which is away from the first cover plate, and the bottom wall and the second cover plate enclose a cooling cavity to accommodate the heat dissipation piece.

10. A fuel cell system, characterized in that the fuel cell system comprises:

a galvanic pile;

the air compressor is used for providing compressed air for the electric pile; and

the control device is electrically connected with the air compressor and is used for controlling the rotating speed of the air compressor.