VEHICLE-MOUNTED POWER SUPPLY APPARATUS AND VEHICLE HAVING SAME

A vehicle-mounted power supply apparatus and a vehicle having same. The vehicle-mounted power supply apparatus (100) includes: a housing (110), a magnetic device (120), and a shielding component (130). A mounting position (111) is arranged in the housing (110). The magnetic device (120) is an integrated part and is arranged at the mounting position (111), The shielding component (130) is arranged in the housing 110), and the shielding component (130) surrounds a periphery of the mounting position (111).

CROSS-REFERENCE TO RELATED APPLICATIONS

The present disclosure claims priority to Chinese Patent Application No. 202010658596.X, filed on Jul. 9, 2020 and entitled “VEHICLE-MOUNTED POWER SUPPLY APPARATUS AND VEHICLE HAVING SAME”, which is incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to the field of vehicle technologies, and specifically to a vehicle-mounted power supply apparatus and a vehicle having same.

BACKGROUND

In related technologies, as a vehicle-mounted power supply adopts a planar design, the internal structure of the vehicle-mounted power supply is more complex and is prone to the interference by external signals, reducing the operating efficiency of the vehicle-mounted power supply.

SUMMARY

The present disclosure resolves at least one of the technical problems in the related art. Therefore, the present disclosure proposes a vehicle-mounted power supply apparatus. The vehicle-mounted power supply apparatus has a simple structure, good heat dissipation, and a high operating efficiency.

The present disclosure further provides a vehicle. The vehicle includes the vehicle-mounted power supply apparatus.

A vehicle-mounted power supply apparatus according to an embodiment of the present disclosure includes: a housing, a magnetic device, and a shielding component. A mounting position is arranged in the housing. The magnetic device is an integrated part and is arranged at the mounting position. The shielding component is arranged in the housing, and the shielding component surrounds a periphery of the mounting position.

In the vehicle-mounted power supply apparatus according to the embodiments of the present disclosure, the integrated design of the magnetic device can be easily realized by mounting the magnetic device at the mounting position, and then the shielding component is used to shield the interference of external signals to protect the magnetic device, thereby improving the stability and safety of the operation of the vehicle-mounted power supply apparatus.

In some embodiments, a coolant channel is defined in the shielding component, and the coolant channel surrounds a periphery of the magnetic device.

In some embodiments, the shielding component includes: a liquid passage member and a shielding wall. The coolant channel is defined in the liquid passage member. The shielding wall is separated from the liquid passage member, and the shielding wall is located on a side of the liquid passage member away from the magnetic device.

In some embodiments, one side of the coolant channel is provided with an opening, and the shielding component further includes a liquid passage cover plate and a sealing ring. The liquid passage cover plate is hermetically connected with the liquid passage member to close the opening. The sealing ring is sandwiched between the liquid passage cover plate and the liquid passage member.

In some embodiments, the liquid passage member includes a first sidewall and a second sidewall separated from the first sidewall, the coolant channel is defined between the first sidewall and the second sidewall, the first sidewall faces toward the magnetic device, the second sidewall is located on a side of the first sidewall away from the magnetic device, and a distance between the first sidewall and the second sidewall gradually increases in a direction toward the opening.

In some embodiments, the vehicle-mounted power supply apparatus further includes: a circuit board, a plurality of power switch tubes, and a fixing apparatus. Each of the power switch tubes is respectively electrically connected with the circuit board. The fixing apparatus is configured for simultaneously fixing the plurality of power switch tubes between the liquid passage member and the shielding wall.

In some embodiments, the fixing apparatus includes: a fixing plate and a plurality of elastic pieces. Each of the elastic pieces is configured for fixing one power switch tube. One end of each of the elastic pieces is fixed to the fixing plate, and the other end of each of the elastic pieces is located at one side of the fixing plate in a thickness direction and is separated from a surface on the one side of the fixing plate in the thickness direction.

In some embodiments, each of the elastic pieces includes: a fixing segment, a connection segment, and a pressing segment. The fixing segment is fixed on the fixing plate. The connection segment is connected between the fixing segment and the pressing segment. The pressing segment includes a first pressing portion and a second pressing portion. One end of the first pressing portion is connected with the connection segment, and the other end of the first pressing portion extends away from the fixing plate. One end of the second pressing portion is connected with the other end of the first pressing portion, and the other end of the second pressing portion extends toward the fixing plate.

In some embodiments, at least one boss is arranged on the other side of the fixing plate in the thickness direct and a cross-sectional area of the boss gradually decreases in a direction away from the fixing plate. The boss is formed by a part of the surface on the one side of the fixing plate in the thickness direction protruding toward a surface on the other side of the fixing plate in the thickness direction.

In some embodiments, an edge of the fixing plate is provided with at least one pull lug extending away from a center of the fixing plate. The fixing apparatus further includes: at least one pull lug piece, where the pull lug piece is arranged on one side of the pull lug in a thickness direction; and an edge of the fixing plate is provided with at least one fixing lug, and a free end of the fixing lug extends toward the other side of the fixing plate along the thickness direction of the fixing plate.

In some embodiments, the magnetic device includes: a magnetic core, a coil, a skeleton, a wire nose, and a nut. The coil is wound on the magnetic core and has a pin. the skeleton is arranged on the magnetic core. The wire nose is mounted on the skeleton and connected with the pin, and the wire nose has a connecting hole. The nut is mounted on the skeleton, and the nut has a threaded hole corresponding to a position of the connecting hole.

In some embodiments, the wire nose is movably mounted on the skeleton to make a distance between the connecting hole and the skeleton adjustable. The wire nose includes: a plate portion, a bending portion, and a clamping portion. The connecting hole is formed in the plate portion, and the nut is arranged between the plate portion and the skeleton. One end of the bending portion is connected to the plate portion, the bending portion protrudes to yard the skeleton, the bending portion is movably mounted on the skeleton, and the bending portion is configured as a U shape protruding toward the skeleton to form a groove. The clamping portion is connected to the other end of the bending portion and clamps the pin, and the clamping portion is located in the groove.

In some embodiments, the skeleton is provided with an anti-rotation groove, the nut is arranged in the anti-rotation groove, and a distance between the plate portion and a bottom wall of the anti-rotation groove is greater than an axial length of the nut.

In some embodiments, the wire nose further includes a positioning protrusion, where the positioning protrusion and the bending portion are respectively connected to two opposite side edges of the plate portion, the skeleton is provided with a positioning groove, and the positioning protrusion is engaged with the positioning groove.

In some embodiments, the vehicle-mounted power supply apparatus further includes a magnetic circuit piece and at least one magnetic sheet. The magnetic core and the skeleton are carried on the magnetic circuit piece. The magnetic sheet is mounted on the skeleton, the magnetic sheet and the magnetic circuit piece are respectively arranged on two opposite sides of the magnetic core, the skeleton is provided with a hook, and the hook is hooked to an edge of the magnetic sheet.

A vehicle according to an embodiment of the present disclosure includes the vehicle-mounted power supply apparatus described above.

The additional aspects and advantages of the present disclosure will be provided in the following description, some of which will become apparent from the following description or may be learned from practices of the present disclosure.

LIST OF REFERENCE NUMERALS

first pressing portion231, second pressing portion232,

guide surface2013, power Witch tube202, and

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below, and the embodiments described with reference to accompanying drawings are exemplary.

A vehicle-mounted power supply apparatus100according to an embodiment of the present disclosure will be described below with reference toFIG.1toFIG.5, which includes: a housing110, a magnetic device120, and a shielding component130.

In an embodiment, a mounting position111is arranged in the housing110, and the magnetic device120is an integrated part and is arranged at the mounting position111. It should be Doted that by arranging the mounting position111inside the housing110, the magnetic device120may be centrally arranged at the mounting position111, thereby improving the integration degree of the vehicle-mounted power supply apparatus100. The shielding component130is arranged in the housing110, and the shielding component130surrounds a periphery of the mounting position111. The shielding component130can be used to shield electromagnetic signals, thereby protecting the magnetic device120.

In the vehicle-mounted power supply apparatus100according to the embodiments of the present disclosure, the integrated design of the magnetic device120can be easily realized by mounting the magnetic device120at the mounting position111, and then the shielding component130is used to shield the interference of external signals to protect the magnetic device120, thereby improving the stability and safety of the operation of the vehicle-mounted power supply apparatus100.

In the embodiment shown inFIG.3andFIG.4, a coolant channel131is defined in the shielding component130, and the coolant channel131surrounds a periphery of the magnetic device120. It should be noted that, the coolant channel131may be provided with a coolant. When the coolant flows, heat exchange occurs between the coolant near the magnetic device120and the magnetic device120, that is, the coolant can cool the magnetic device120. The flow of the coolant can take away heat generated by the magnetic device120, so as to cool and dissipate heat from the magnetic device120. By arranging the coolant channel131to surround the periphery of the magnetic device120, the coolant channel131can be close to more positions on the magnetic device120, thereby improving the cooling efficiency of the coolant channel131.

As shown inFIG.3andFIG.4, the shielding component130may include a liquid passage member132and a shielding wall133. The coolant channel131is defined in the liquid passage member132. The shielding wall133separated from the liquid passage member132, and the shielding wall133is located on a side of the liquid passage member132away from the magnetic device120. It can be understood that, the liquid passage member132is closer to the magnetic device120than the shielding wall133, that is, the liquid passage member132is arranged adjacent to the magnetic device120, thereby facilitating the cooling of the magnetic device120by the coolant channel131. By arranging the shielding wall133around the liquid passage member132, the magnetic device120and the liquid passage member132can be protected at the same time.

As shown inFIG.2, according to some embodiments of the present disclosure, the liquid passage member132may include a first segment1321and a second segment1322separated from the first segment1321, and the magnetic device120is sandwiched between the first segment1321and the second segment1322. It can be understood that the first segment1321is located on one side of the magnetic device120, and the second segment1322is located on the other side of the magnetic device120, so as to dissipate heat from the magnetic device120from multiple directions. In addition, the liquid passage member132arranged on two sides of the magnetic device120can limit the magnetic device120, thereby improving the assembly stability of the magnetic device120.

As shown inFIG.3andFIG.4in some embodiments, one side of the coolant channel131is provided with an opening, and the shielding component130further includes a liquid passage cover plate134. The liquid passage cover plate134is hermetically connected with the liquid passage member132to close the opening. Therefore, on the one hand, it is convenient to fill the coolant into the coolant channel131. On the other hand, the liquid passage cover plate134can be used to seal the opening, thereby simplifying the structure of the liquid passage member132and facilitating the replacement and maintenance of the liquid passage member132.

In some embodiments, the liquid passage cover plate134is welded to the liquid passage member132, or the liquid passage cover plate134is connected to the liquid passage member132by a screw. In this way, the liquid passage cover plate134and the liquid passage member132can be fixed by welding or by a bolt connection. When the liquid passage cover plate134and the liquid passage member132are connected by welding, a coolant with a high heat exchange effect may be used to extend the heat dissipation effect of the liquid passage member132, and at the same time, the liquid passage member132can also have a higher stability and avoid coolant leakage.

When the liquid passage cover plate134and the liquid passage member132are connected and fixed by a screw, the coolant that exchanges heat in the coolant channel131has a higher use effect, thereby increasing the heat dissipation effect of the liquid passage member132. In addition, the liquid passage cover plate134and the liquid passage member132connected by a bolt have good detachable performance, which not only improves the assembly efficiency of the liquid passage member132, but also facilitates the disassembly of the liquid passage member132. This improves the assembly and disassembly efficiency of the liquid passage member132, and facilitates the use, maintenance, and repair of the vehicle-mounted power supply apparatus100.

Referring toFIG.3andFIG.4, in some embodiments, the shielding component130further includes a sealing ring135. The sealing ring135is sandwiched between the liquid passage cover plate134and the liquid passage member132. Therefore, the sealing ring135arranged between the liquid passage cover plate134and the liquid passage member132provides a better sealing performance for the coolant channel131on the liquid passage member132, which can further avoid the liquid leakage and other situations, and further increase the usage reliability of the coolant channel131. In addition, the sealing ring135sandwiched between the liquid passage cover plate134and the liquid passage member132can facilitate the assembly of the liquid passage cover plate134and improve the assembly efficiency of the liquid passage cover plate134. In addition, when the liquid passage cover plate134is to be disassembled, the sealing ring135can reduce the adhesion resistance between the liquid passage cover plate134and the liquid passage member132, so that the disassembly convenience of the liquid passage cover plate134can be improved, thereby further facilitating the use, maintenance, and repair of the vehicle-mounted power supply apparatus100.

In the embodiment shown inFIG.3andFIG.4, the liquid passage member132may include a first sidewall1323and a second sidewall1324separated from the first sidewall1323. The coolant channel131is defined between the first sidewall1323and the second sidewall1324. The first sidewall1323faces toward the magnetic device120, The second sidewall1324is located on a side of the first sidewall1323away from the magnetic device120. A distance between the first sidewall1232and the second sidewall1324gradually decreases in a direction toward the opening. In this way, the coolant channel131is defined to be narrow in the upper part and wide in the lower part, so as to facilitate the demolding of the liquid passage member132and improve the yield of the liquid passage member132. In addition, the first sidewall1323facing toward the magnetic device120can better exchange heat with the magnetic device120to improve the cooling efficiency of the liquid passage member132, thereby improving the operating efficiency of the vehicle-mounted power supply apparatus100.

As shown inFIG.5, in some embodiments, the vehicle-mounted power supply apparatus100further includes: a circuit board (not shown), power switch tubes202, and a fixing apparatus. The power switch tubes202are electrically connected with the circuit board. The power switch tubes202are arranged between the liquid passage member132and the shielding wall133. The fixing apparatus152is configured for simultaneously fixing a plurality of power switch tubes202between the liquid passage member132and the shielding wall133.

The power switch tubes202can control on/off of a circuit on die circuit board. Therefore, the arrangement of the power switch tubes202on the shielding wall133can not only enable the shielding wall133to better support the power switch tubes202and enable the power switch tubes202to better control on/off of the circuit on the circuit board, but also enable the shielding wall133to shield the interference of external signals on the power switch tubes202, allowing the power switch tubes202to control the circuit board more precisely.

In addition, the fixing apparatus152is further arranged on an outer side of the power switch tube202. The fixing apparatus152has a function of press-fitting the power switch tube202. The fixing apparatus152deforms during the press-fit process, and the deformed fixing apparatus152has an axial pressure, which presses the power switch tube202and the liquid passage member132together, thereby providing the lower switch tube202with a high stability. In addition, after the fixing apparatus152is arranged to fix the power switch tube202, the fixing apparatus152also has a good heat exchange capacity, so that the heat generated by the power switch tube202during the operation can be transferred through the fixing apparatus152, to lower the operating temperature of the power switch tube202and improve the operating efficiency of the power switch tube202. In addition, the fixing apparatus152can fix a plurality of power switch tubes202at a time, achieving a high fixing efficiency. In addition, the fixing process of the fixing apparatus152can also be simplified to improve the assembly efficiency of the vehicle-mounted power supply apparatus100.

The fixing apparatus152for power switch tubes202according to the embodiments of the present disclosure will be described below with reference toFIG.11to FIG.15.

It should be noted that, the fixing apparatus152fixes the power switch tube202to the liquid passage member132of the shielding component130. In an embodiment, the power switch tube202is bonded with and against the second sidewall1324, so that the fixing apparatus152squeezes the power switch tube202to the second sidewall1324. The second sidewall1324provides support for the power switch tube202. In addition, the power switch tube202can transfer the heat generated during the operation to the second sidewall1324to reduce the operating temperature of the power switch tube202and improve the operating efficiency of the power switch tube202. The first sidewall1323of the liquid passage member132is located at the side away from the power switch tube202, and can absorb the heat emitted by the magnetic device120during the operation. The shielding component130further includes the shielding wall133. The shielding wall133is located on the other side away from the power switch tube202and can shield external interference signals, including interference signals to the power switch tube202and interference signals to the magnetic device120inside the power switch rube202. This embodiment only introduces the bonding, contacting and interaction of the power switch tribe202with the second sidewall1324under the action of the fixing apparatus152. The first sidewall323and the shielding wall133have been introduced in the context, and will not be repeated here.

As shown inFIG.11toFIG.13, the fixing apparatus152for power switch tubes202according to an embodiment of the present disclosure includes a fixing plate1and a plurality of elastic pieces2.

In an embodiment, each elastic piece2is used to fix one power switch tube202, and one end of each elastic piece2(for example, a lower end inFIG.11) is fixed to the fixing plate1. In this case, the one end of each elastic piece2is fixed relative to the fixing plate1. The other end of each elastic piece2(for example, an upper end inFIG.11) is located on one side of the fixing plate1in the thickness direction, and the other end of each elastic piece2is separated from a surface on the one side of the fixing plate1in the thickness direction.

When the fixing apparatus152for power switch tubes202is applied to a switch tube assembly200, with reference toFIG.14and FIG,15, in order to make the plurality of power switch tubes202closely fit on an inner wall of the shielding component130, such as the second sidewall1324, where the plurality of power switch tubes202are mounted, the operation personnel only needs to insert the fixing plate1having the plurality of elastic pieces into the shielding component130. In the above process, the other ends of the plurality of elastic pieces2can move toward the fixing plate1under the action of the corresponding power switch tithes202, and due to an elastic force of the elastic piece2itself, the other ends of the plurality of elastic pieces2can respectively apply a force toward the second sidewall1324to the corresponding power switch tubes202, thereby tightly pressing the plurality of power switch tubes202onto the second sidewall324. This enables the plurality of power switch tubes202to closely fit with the second sidewall1324, thereby realizing effective heat dissipation for the plurality of power switch tubes202and prolonging the service life of the plurality of power switch tubes202. Therefore, compared with the related art in which each power switch tube202requires the use of a corresponding screw to lock the elastic piece2to achieve press-fit and fixation, the fixing apparatus152including the fixing plate I and the plurality of elastic pieces2is an integral structure, which can press-fit a plurality of power switch tubes202at a time, thereby simplifying the assembly process, improving the assembly efficiency, and facilitating subsequent disassembly. The disassembly can be done at a time.

The fixing apparatus152for power switch tubes202according to the embodiments of the present disclosure include the fixing plate1and the plurality of elastic pieces2, where one end of each elastic piece2is fixed to the fixing plate1, the other end of each elastic piece2is located on one side of the fixing plate1in the thickness direction and is separated from the surface on the one side of the fixing plate1in the thickness direction. The fixing apparatus152has a simple structure. When the fixing apparatus152is applied to the switch tube assembly200, the assembly efficiency of the fixing apparatus132is high.

As shown inFIG.11, each elastic piece2includes a fixing segment21, a pressing segment23, and a connection segment22. The fixing segment21is fixed on the fixing plate1, and each elastic piece2is fixedly connected to the fixing plate1through the fixing segment21. The pressing segment23is located on the one side of the fixing plate1in the thickness direction, and the pressing segment23is separated from the surface on the one side of the fixing plate1in the thickness direction. When the fixing apparatus152is applied to the switch tube assembly200, each elastic piece2can tightly press the corresponding power switch rube202through the pressing segment23to fit with the inner wall of the shielding component130, such as the second sidewall1324. The connection segment22is connected between the fixing segment21and the pressing segment23. In this way, it can be effectively ensured that each elastic piece2has a sufficient elasticity, so that the power switch tube202can be reliably and tightly pressed in the shielding component130.

Referring toFIG.11, the pressing segment23includes a first pressing portion231and a second pressing portion232, One end of the first pressing portion231(for example, a lower end inFIG.11) is connected with the connection segment22, and the other end of the first pressing portion231(for example, an upper end inFIG.11) extends away from the fixing plate1. One end of the second pressing portion232(for example, a lower end inFIG.11) is connected with the other end of the first pressing portion231, and the other end of the second pressing portion232(for example, an upper end inFIG.11) extends toward the fixing plate1. In this case, the connection between the first pressing portion231and the second pressing portion232is suitable for abutting the power switch tube202. Therefore, by arranging the pressing segment23to include the first pressing portion231and the second pressing portion232, the fixing apparatus152can be more smoothly mounted into the shielding component130, and the end of the pressing segment23is not easy to contact the power switch tube202directly, thereby extending the service life of the power switch tube202. In an embodiment, there nay be a smooth transition between the first pressing portion231and the second pressing portion232. In this way, the contact area between the pressing segment23and the power switch tube202can be increased, and the force exerted by the pressing segment23on the power switch tube202can be more uniform, thereby effectively ensuring that the power switch tube202as a whole closely fits the second sidewall1324, and providing a good heat dissipation effect.

In an embodiment, a length of the second pressing portion232may be less than that of the first pressing portion231, to save materials while ensuring that the pressing portion has a sufficient force on the power switch tube202, thereby reducing the costs.

Referring toFIG.11to FIG,13as well asFIG.14to15, an angle between the first pressing portion231and the fixing plate1is greater than an angle between the connection segment22and the fixing plate1. In this case, compared with the connection segment22, an inclination angle of the first pressing portion231is greater, and there may be a smooth transition at the connection between the first pressing portion231and the connection segment22. Through such an arrangement, each elastic piece2can be gradually extended away from the fixing plate1, and the service life of the elastic piece2can be extended while ensuring a sufficient elastic force.

As shown inFIG.11toFIG.12, the plurality of elastic pieces2constitute at least one elastic piece group. The elastic piece group includes at least two elastic pieces2arranged side by side. One end of each of the at least two elastic pieces2is fixed to the fixing plate1, and the other ends of the at least two elastic pieces2are separated from each other. Such an arrangement is convenient for processing and can reduce the costs. For example, in an example ofFIG.11andFIG.12, seven elastic piece groups are shown. The seven elastic piece groups are arranged at intervals along a length direction of the fixing plate1. Each elastic piece group includes two elastic pieces2arranged along the length direction of the fixing plate1. Lower ends of the two elastic pieces2are connected, and upper ends of the two elastic pieces2are separated from each other for respectively abutting the corresponding power switch tubes202. The at least two elastic pieces2in each elastic piece group may be integrally formed.

The seven elastic piece groups shown inFIG.11andFIG.12may include three first elastic piece groups and two second elastic piece groups. The length and width of the elastic piece2in each first elastic piece group may be different from the length and width of the elastic piece2in each second elastic piece group, so as to adapt to power switch tubes202of different sizes.

In an embodiment, each elastic piece2may be riveted (as shown inFIG.11andFIG.12), welded (not shown) or threadedly connected (not shown) to the fixing plate1. Therefore, the production process is simple. Of course, the present disclosure is not limited thereto, and the plurality of elastic pieces2may also be integrally formed with the fixing plate1, as shown inFIG.13. For example, the plurality of elastic pieces2may be formed from the fixing plate1by stamping.

According to some embodiments of the present disclosure, as shown inFIG.12toFIG.15, at least one boss4is arranged on the other side of the fixing plate1in the thickness direction. The boss4protrudes from the surface on the other side of the fixing plate1in the thickness direction. In this way, when the fixing apparatus152is assembled into the shielding component130, the boss4abuts against the shielding wall133opposite to the second sidewall1324in the shielding component130. In this case, the boss4can be engaged with the elastic piece2, so that the elastic piece2can exert a greater force on the power switch tube202, so that the power switch tube202can be more closely fit to the second sidewall1324of the shielding component130.

As shown inFIG.14andFIG.15, a cross-sectional area of the boss4gradually decreases in a direction away from the fixing plate1. In an embodiment, at least one side surface of the boss4may be formed as a chamfer121, for example, at least a lower side surface of the boss4may be formed as a chamfer121, so that the fixing apparatus152can be more smoothly assembled into the shielding component130.

In an embodiment, referring toFIG.11toFIG.12as well asFIG.13toFIG.14, the boss4may be formed by a part of the surface on the one side of the fixing plate1in the thickness direction protruding toward a surface of the other side of the fixing plate1in the thickness direction. For example, the boss4may be formed by stamping to simplify the fabrication process of the boss4and reduce the costs. Of course, the boss4may also be a solid structure arranged on the surface of the other side of the fixing plate1in the thickness direction.

According to some embodiments of the present disclosure, referring toFIG.11toFIG.12, a plurality of bosses4may be arranged, and the plurality of bosses4are arranged at intervals along the arrangement direction of the plurality of elastic pieces2. Therefore, the arrangement of the plurality of bosses4can effectively ensure that the plurality of elastic pieces respectively exert a large force on the corresponding power switch tubes202. It can be understood that the number of bosses4may be less than the number of elastic piece2, as long as it can ensure that the plurality of elastic pieces2can tightly press the corresponding power switch tubes202in the shielding component130.

According, to some embodiments of the present disclosure, as shown inFIG.12, an edge of the fixing plate1is provided with at least one pull lug5extending away from a center of the fixing plate1. For example, in an example ofFIG.12, two pull lugs5are shown, and the two pull lugs5may be in the same plane with the fixing plate1. When it is necessary to insert the fixing apparatus152into the shielding component130, operation personnel may hold the two pull lugs5and insert the fixing apparatus152into the shielding component130from top to bottom, so that the plurality of elastic pieces2can closely fit with the second sidewall1324of the shielding component130. When it is necessary to take out the fixing apparatus152, the two pull lugs5may be pulled upward, so that the fixing apparatus152can be conveniently pulled out. Therefore, the assembly and disassembly of the fixing apparatus152can be more conveniently realized by arranging the pull lug5.

The two pull lugs5shown inFIG.11toFIG.12are for the purpose of illustration. After reading the technical solution of the present disclosure, those of ordinary skill in the art can obviously understand that the application of this solution to technical solutions involving three or more pull lugs5also falls within the scope of protection of the present disclosure.

According to some embodiments of the present disclosure, as shown inFIG.11andFIG.12, the fixing apparatus152may include at least one pull lug piece51. The pull lug piece51is arranged on one side of the pull lug5in a thickness direction. For example, as shown inFIG.12, the pull lug piece51may include a first segment and a second segment connected with each other, a length of the first segment of the pull lug piece51may be equal to a length of the pull lug5, a width of the first segment of the pull lug piece51may be equal to a width of the pull lug5, and a width of the second segment may be greater than the width of the first segment. During the assembly, the first segment of the pull lug piece51may correspond to the pull lug5, and the second segment of the pull lug piece51may be fixed to the fixing plate1by riveting or welding. Therefore, the pull lug5can be reinforced by arranging the pull lug piece51, thereby improving the structural strength of the pull lug5. The number of pull lug pieces51may be equal to or less than the number of pull lugs5. It can be understood that the actual number of pull lug pieces51may be set according to actual requirements to better meet the practical application.

According to some embodiments of the present disclosure, with reference toFIG.11andFIG.14, an edge of the fixing plate1is provided with at least one fixing lug3. Therefore, by arranging the fixing lug3, the fixing apparatus152can be fixedly connected to the shielding component130through the fixing lug3. A free end of the fixing lug3extends toward the other side of the fixing plate1along the thickness direction of the fixing plate1. In this way, after the fixing apparatus152is assembled on the shielding component130, the fixing lug3is located on the top of the shielding component130, and the fixing lug3is exposed out of the shielding component130. In this case, a threaded fastener may be passed through the fixing lug3and threadedly connected to the shielding compo130, so the assembly is convenient. Compared with the related art in which an opening is provided at the bottom of the shielding component130or a large number of through holes are provided on the top circuit board, the fixing apparatus152requires less mounting space, and there is no need to reserve operation space required for fixing the fixing apparatus152. In addition, the fixing lug3also has a positioning function. In an embodiment, when the fixing lug3is assembled to contact the top of the shielding component130, it indicates that the fixing apparatus152has been mounted in place. In this case, the elastic piece2makes the power switch tube202closely fit with the second sidewall1324of the shielding component130.

As shown inFIG.14andFIG.15, the switch tube assembly200according to an embodiment of the present disclosure includes a shielding component130, a plurality of power switch tubes202, and a fixing apparatus152. The fixing apparatus152is the fixing apparatus152for power switch tubes202according to the above embodiments of the present disclosure.

In an embodiment, the plurality of power switch tubes202are all arranged in the shielding component130. The fixing apparatus152is arranged in the shielding component130, and the other ends of the plurality of elastic pieces2of the fixing apparatus152tightly press the plurality of power switch tubes202in the shielding component130.

For the switch tube assembly200according to the embodiment of the present disclosure, by using the above fixing apparatus152, the fixing apparatus152can be conveniently assembled into the shielding component130, so the assembly is convenient. Moreover, the plurality of power switch tubes202can be abutted against the second sidewall1324in the shielding component130under the action of the plurality of elastic pieces2, which can better realize the heat dissipation and extend the service life of the power switch tubes202.

According to some embodiments of the present disclosure, referring toFIG.14andFIG.15, at least one boss4is arranged on the other side of the fixing plate1in the thickness direction. A guide surface2013is arranged on a surface of one side of the shielding component130facing toward the boss4. The guide surface2013extends obliquely toward the boss4along the insertion direction of the fixing apparatus152. Therefore, by arranging the guide surface2013, the guide surface2013has -a guiding effect for the boss4, so that the fixing apparatus152can be more smoothly assembled to the shielding component130.

As shown inFIG.14, before the plurality of power switch tubes202are tightly pressed, the boss4on the fixing plate1is vertically staggered from the guide surface2013on the shielding wall133of the shielding component130, In this case, the plurality of elastic pieces2have not pressed to the corresponding power switch tubes202.

During the downward insertion of the fixing apparatus152, the boss4contacts the guide surface2013on the shielding wall133of the shielding component130. Afterward, as the downward pressing continues, the fixing apparatus152as a whole moves toward the power switch tubes202under the stop action of the boss and the sidewall of the box. In this case, the plurality of elastic pieces2respectively receive the forces that are toward the fixing plate1, so that the elastic pieces2changes from a state shown by dashed lines inFIG.15to a state shown by solid lines. In this case, the elastic deformation of the elastic piece2produces the appropriate axial pressure, so that the plurality of power switch tubes202can closely fit with the heat-dissipation wall of the shielding component130.

Finally, a threaded fastener such as a screw may be passed through the fixing lug3to fix the fixing apparatus152to the shielding component130, as shown inFIG.15.

In the embodiment shown inFIG.6, a thermal insulation layer151is sandwiched between the power switch tube202and the liquid passage member132. Therefore, the thermal insulation layer151can transfer the heat of the power switch tube202during the operation to the liquid passage member132, to reduce the temperature of the power switch tube202and improve the operating efficiency of the power switch tube202. In addition, the thermal insulation layer151can further avoid the impact on the vehicle-mounted power supply apparatus100caused by the current leakage of the power switch tube202, thereby improving the usage safety and reliability of the vehicle-mounted power supply apparatus100.

In some embodiments, the coolant channel131is annular, and the coolant channel131surrounds the periphery of the magnetic device120. In this way, the annular coolant channel131can allow the coolant to circulate in the channel, so that the coolant can better absorb the heat of the vehicle-mounted power supply apparatus100, reduce the temperature of the vehicle-mounted power supply apparatus100, and improve the operating efficiency of the vehicle-mounted power supply apparatus100. In addition, by arranging the coolant channel131at the periphery of the electromagnetic device120, the heat emitted by the magnetic device120during the operation can be absorbed by the coolant more quickly. This can improve the cooling effect of the coolant, to reduce the temperature of the vehicle-mounted power supply apparatus100during the operation, thereby improving the operating efficiency of the vehicle-mounted power supply apparatus100.

In some embodiments, as shown inFIG.3, a mounting groove112is provided at the mounting position111, the magnetic device120is arranged in the mounting groove112, the magnetic device120is connected to an inner wall of the mounting groove112through a screw, and a thermally conductive adhesive is arranged between the magnetic device120and the inner wall of the mounting groove112. Therefore, the arrangement of the mounting groove112for assembling the magnetic device120further improves the assembly efficiency of the magnetic device120. In addition, the connection of the magnetic device120through a screw makes the assembly of the magnetic deice120more convenient, and facilitates the disassembly and maintenance of electrical components, thereby improving the assembly efficiency of the vehicle-mourned power supply apparatus100. In addition, with the thermal conductive adhesive arranged between the magnetic device120and the mounting groove112, the heat generated by the magnetic device120during the operation can be transferred to the inner wall of the mounting groove112more quickly, so that the heat of the magnetic device120can be dissipated more quickly, thereby improving the operating efficiency of the vehicle-mounted power supply apparatus100.

The magnetic device120according to the embodiments of the present disclosure will be described below with reference toFIG.6toFIG.10.

As shown inFIG.6toFIG.10, the magnetic device120according to an embodiment of the present disclosure includes a magnetic core, a coil300, a skeleton400, a wire nose500, and a nut600.

The coil300is wound on the magnetic core and has a pin310. The skeleton400is arranged on the magnetic core. The wire nose500is mounted on the skeleton400and connected with die pin310. The wire nose500has a connecting hole510. The nut600is mounted on the skeleton400, and the nut600has a threaded hole610corresponding to a position of the connecting hole510.

In an embodiment, the circuit board connected with the magnetic device120may be arranged on ne side of the wire nose500facing away from the skeleton400. The circuit board may be provided with a threaded fastener (for example, a bolt or screw). The threaded fastener may be passed through the connecting hole510and threadedly connected to the threaded hole610. As such, an electrical and mechanical connection can be realized between the circuit board and the magnetic device120.

For the magnetic device120according to the embodiment of the present disclosure, the coil300is wound on the magnetic core and has the pin310, the skeleton400is arranged on the magnetic core, and the wire nose500is mounted on the skeleton400and connected with the pin310. In this way, an electrical connection can be realized between the wire nose500and the coil300, and an electrical connection is realized between the circuit board and the coil300through the electrical connection of the circuit board with the wire nose500.

In addition, the wire nose500has the connecting hole510, the nut600is mounted on the skeleton400, the nut600has the threaded hole610corresponding to the position of the connecting hole510, and the circuit board is connected to the threaded hole610of the nut600through the threaded fastener. The connection process is safe and reliable, the connection quality is easy to detect, the probability of damage of the magnetic device120is low, and the connection between the circuit board and the magnetic device120is stable. As welding is not required, the assembly and disassembly are convenient, providing a good component replaceability and maintainability.

Therefore, the magnetic device120according to the embodiment of the present disclosure has the advantages of good component replaceability and maintainability, reliable connection, easy detection of connection quality, and the like.

According to sonic embodiments of the present disclosure, as shown inFIG.6toFIG.9, the wire nose500is movably mounted on the skeleton400to make the distance between the connecting hole510and the skeleton400adjustable. Since the circuit board is located on the side of the wire nose500facing away from the skeleton400, the distance between the connecting hole510and the skeleton400can be adjusted by moving the wire nose500, thereby improving the connection flatness between the magnetic device120and the circuit board.

According, to some embodiments of the present disclosure, as shown inFIG.7toFIG.10, the wire nose500includes a plate portion520, a bending portion530, and a clamping portion540. The connecting hole510is formed on the plate portion520. The nut600is arranged between the plate portion520and the skeleton400. One end of the bending portion530is connected to the plate portion520. The bending portion530protrudes toward the skeleton400. The bending portion530is movably mounted on the skeleton400. The damping portion540is connected to the other end of the bending portion530and clamps the pin310.

It can be understood that when the circuit board is threadedly engaged with the nut600through the threaded fastener, the plate portion520is located between the circuit board and the nut600, so that the position between the wire nose500and the circuit board as well as the position of the nut600are fixed, and then through the engagement of the bending portion530with the skeleton400, the position between the wire nose500and the skeleton400is fixed. Therefore, the stability of relative positions of the circuit board and the magnetic device120as a whole is increased. The clamping portion540can damp the pin310from two opposite sides of the pin310in a radial direction to increase the connection stability between the wire nose500and the pin310. The clamping portion540and the pin310may be welded or crimped.

According to some embodiments of the present disclosure, as shown inFIG.7toFIG.10, the bending portion530is configured as a U shape protruding toward the skeleton400to form a groove531, and the clamping portion540is located in the groove531. An opening direction of the clamping portion540is opposite to an opening direction of the groove531. For example, the opening direction of the groove531faces away from the magnetic core, and the opening direction of the clamping portion540faces toward the magnetic core. The connection part between the pin310and the clamping portion540is located inside the groove531, thereby reducing the probability of external contact with the pin310. The connection part between the pin310and the clamping portion540can be protected by arranging the groove531, so as to increase the stability of the overall connection of the magnetic device120.

According to some embodiments of the present disclosure, as shown inFIG.7toFIG.9, the skeleton400is provided with an assembly slot410, and the bending portion530is movably engaged with the assembly slot410. The bending portion530may be in an interference fit with the assembly slot410. The wire nose500may be fixed to the skeleton400through a friction force between the bending portion530and the assembly slot410. When an external force on the wire nose500is greater than the friction force between the bending portion530and the assembly slot410, the wire nose500can move relative to the skeleton400. With the arrangement of the assembly slot410, on the one hand, it can be used to accommodate the bending portion530, to reduce the overall volume of the magnetic device120, and facilitate the product miniaturization. On the other hand, the relative positions of the skeleton400and the wire nose500can be fixed through the engagement of the bending portion530with the assembly slot410, thereby improving the overall structural strength of the magnetic device120.

According to some embodiments of the present disclosure, as shown inFIG.7toFIG.9, the skeleton400is provided with an anti-rotation groove420, the nut600is arranged in the anti-rotation groove420, and a distance between the plate portion520and a bottom of the anti-rotation groove420is greater than an axial length of the nut600. It can be understood that the nut600is non-circular, and a shape of the anti-rotation groove420matches a shape of the nut600, for example, both of the two are hexagonal. The nut600is fixed with respect to the relative position of the anti-rotation groove420along a circumferential direction. Therefore, when the threaded fastener (such as a bolt or screw) of the circuit board is passed through the connecting hole510and engaged with the nut600, the nut600is prevented from rotating due to a circumferential force received by the nut600, which increases the convenience of assembly. As the distance between the plate portion520and the bottom wall of the anti-rotation groove420is greater than the axial length of the nut600, the axial position of the nut600can be adjusted. In addition, a shortest distance between the plate portion520and the surface of the skeleton400facing toward the plate portion520may be less than the axial length of the nut600, to prevent the nut600from falling off from the anti-rotation groove420.

According to some embodiments of the present disclosure, as shown inFIG.7toFIG.10, the wire nose500further includes a positioning protrusion550, the positioning protrusion550and the bending portion530are respectively connected to two opposite side edges of the plate portion520. The skeleton400is provided with a positioning groove440, and the positioning protrusion550is engaged with the positioning groove440. The positioning protrusion550extends along an edge of the plate portion520toward the skeleton400. The engagement of the positioning protrusion550and the positioning groove440makes the connection between the wire nose500and the skeleton400more stable, so that the relative positions of the wire nose500and the skeleton400are further fixed.

According to sonic embodiments of the present disclosure, as shown inFIG.6toFIG.8, the magnetic device120further includes a magnetic circuit piece801and at least one magi etic sheet700, the magnetic core and skeleton400are carried on the magnetic circuit piece801, and the magnetic sheet700is mounted on the skeleton400. The magnetic sheet700may contain a magnetic material. The magnetic sheet700may have a high permeability to effectively shield magnetic leakage generated by the coil300. In addition, the magnetic sheet700may have a high resistivity to reduce an eddy current loss caused by the addition of the magnetic sheet700, thereby reducing the amount of heat generated by the magnetic device120and improving the overall efficiency of the magnetic device120.

As shown inFIG.8, the magnetic device120further includes a supporting portion800. The supporting portion800is configured to support the coil300. The supporting portion800is connected with the magnetic circuit piece801, and the supporting portion800and the magnetic circuit piece801form an L-shaped structure, The magnetic core is arranged on one side of the magnetic circuit piece801facing toward the coil300, and the magnetic core is arranged in the coil300.

According to some embodiments of the present disclosure, as shown inFIG.6toFIG.8, the magnetic sheet700and the magnetic circuit piece801are respectively arranged on two opposite sides of the magnetic core. Since both the magnetic sheet700and the magnetic circuit piece801generate eddy current losses, the magnetic sheet700and the magnetic circuit piece801are respectively arranged on the two opposite sides of the transformer to prevent the concentration of heat generated by the magnetic sheet700and the magnetic circuit piece801and improve the heat dissipation efficiency for the magnetic sheet700and the magnetic circuit piece801, thereby improving the overall efficiency of the magnetic device120. In addition, the skeleton400is provided with a hook430, and the hook430is hooked to an edge of the magnetic sheet700. A plurality of books430may be arranged. The plurality of hooks430may be booked at least to the two opposite side edges of the magnetic sheet700to increase the relative stability between the magnetic sheet700and the skeleton400and ensure the overall structural strength of the magnetic device120.

In some embodiments, the shielding component130and the housing110are integrally formed. In this way, steps required for fabricating the shielding component130and the housing110can be saved, the process of fabricating the shielding component130and the housing110can be simplified, the connection strength between the shielding component130and the housing110can be improved, and the overall structural strength of the vehicle-mounted power supply apparatus100can be increased.

As shown inFIG.1andFIG.2, in some embodiments, a support113is arranged at a periphery of the housing110, and the support113and the housing110are integrally formed. As shown above, the integral forming can save the steps required for fabricating the support113and the housing110, simplify the process of fabricating the support113and the housing110, improve the connection strength between the support113and the housing110, and increase the overall structural strength of the vehicle-mounted power supply apparatus100. In addition, the support113can provide supporting stability for the housing110, so that the loaded vehicle-mounted power supply apparatus100has a higher usage safety and reliability.

Referring toFIG.15, a vehicle1000according to an embodiment of the present disclosure includes the vehicle-mounted power supply apparatus100described above. In this way, the vehicle1000equipped with the vehicle-mounted power supply apparatus100has a good heat dissipation effect, which can reduce the operating temperature of the vehicle-mounted power supply apparatus100during the operation of the vehicle1000, thereby improving the operating efficiency of the vehicle-mounted power supply apparatus100.

In the description of this specification, the description of the reference terms such as “an embodiment”, “some embodiments”, “exemplary embodiments”, “example”, “specific example”, or “some examples” means that the features, structures, materials or characteristics described with reference to the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, exemplary descriptions of the foregoing terms do not necessarily refer to the same embodiment or example.

Although the embodiments of the present disclosure have been shown and described, a person of ordinary skill in the art should understand that various changes, modifications, replacements and variations may be made to the embodiments without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is as defined by the appended claims and their equivalents.