Vehicle-mounted power supply and vehicle

Abstract

The utility model provides a vehicle-mounted power supply and a vehicle. The vehicle-mounted power supply includes: a main body; the circuit board is mounted on the main body and forms an accommodating space together with the main body; the circuit board is provided with a containing space, the electromagnetic shielding part is arranged in the containing space and connected to the main body and the circuit board so as to divide the containing space into at least two cavities, and the electromagnetic shielding part is used for shielding electromagnetic waves. The vehicle-mounted power supply provided by the utility model can avoid or weaken electromagnetic interference.

Description

Technical Field

[0001] The present application relates to the technical field of charging devices, and particularly to a vehicle power supply and a vehicle. Background Art

[0002] A vehicle power supply is a device in an electric vehicle that converts an AC power supply into a DC power supply. A number of electrical components and circuits are provided in the vehicle power supply, and electromagnetic waves will be generated during the operation of the electrical components and circuits. The existence of these electromagnetic waves causes electromagnetic interference among the electrical components and circuits. Utility Model Content

[0003] The present application provides a vehicle power supply and a vehicle that can avoid or weaken electromagnetic interference.

[0004] In a first aspect, the present application provides a vehicle power supply, which includes:

[0005] A main body;

[0006] A circuit board, which is installed on the main body and together with the main body forms a receiving space; and

[0007] An electromagnetic shielding member, which is disposed in the receiving space and connected to the main body and the circuit board to divide the receiving space into at least two chambers, and the electromagnetic shielding member is used for shielding electromagnetic waves.

[0008] Wherein, the electromagnetic shielding member includes a first shielding member and a second shielding member. The first shielding member is connected to the main body, the second shielding member is connected to the first shielding member and the circuit board, and the first shielding member and the second shielding member together divide the receiving space into three chambers.

[0009] Wherein, the first shielding member includes a shielding main body and a bending portion. The shielding main body faces the circuit board and is connected to the second shielding member, and the bending portion is bent and connected to the shielding main body.

[0010] Wherein, the main body includes a main body and a mounting portion. The main body and the circuit board together form the receiving space. The mounting portion is disposed in the receiving space, and the first shielding member is connected to the mounting portion.

[0011] Wherein, the main body has a bottom wall surface that faces the circuit board, and the mounting portion protrudes from the bottom wall surface; and / or, the main body has a first side wall surface and a second side wall surface that are oppositely arranged. The mounting portion includes a first mounting portion and a second mounting portion. The first mounting portion protrudes from the first side wall surface, and the second mounting portion protrudes from the second side wall surface.

[0012] Wherein, the second shielding member is disposed between the circuit board and the first shielding member.

[0013] Wherein, the second shielding member includes a first connecting portion, an intermediate portion, and a second connecting portion. The first connecting portion and the second connecting portion are respectively connected to opposite ends of the intermediate portion. The first connecting portion is connected to the circuit board, and the second connecting portion is connected to the first shielding member.

[0014] Wherein, the first connecting portion is attached to the circuit board, and / or the second connecting portion is attached to the first shielding member.

[0015] Wherein, the first shielding member and the second shielding member are detachably connected.

[0016] In a second aspect, the present application further provides a vehicle, and the vehicle includes the above-mentioned vehicle-mounted power supply.

[0017] In the vehicle-mounted power supply provided by the present application, since the chambers are separated by electromagnetic shielding members, the propagation of electromagnetic waves generated by the electrical components disposed in each chamber will be blocked by the electromagnetic shielding members, thereby avoiding or weakening the problem of mutual interference between the electrical components in each chamber, and further ensuring that the vehicle-mounted power supply can operate normally. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the implementation manners will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the vehicle-mounted power supply provided by the embodiment of the present application.

[0020] Figure 2 It is Figure 1 a cross-sectional view of the vehicle-mounted power supply shown along line A-A.

[0021] Figure 3 It is Figure 1 an exploded view of the vehicle-mounted power supply shown.

[0022] Figure 4 It is Figure 2 a partial enlarged view of the vehicle-mounted power supply shown.

[0023] Figure 5 It is a schematic diagram of another setting form of the mounting portion provided by the embodiment of the present application different from Figure 4 the above.

[0024] Figure 6 It isFigure 2 Schematic diagram of the electromagnetic shielding part shown

[0025] Figure 7 Another connection relationship diagram between the second shielding part and the circuit board provided by the embodiment of the present application, which is different from Figure 4

[0026] Figure 8 For Figure 1 Top view of the vehicle-mounted power supply shown

[0027] Figure 9 For Figure 8 Cross-sectional view of the vehicle-mounted power supply along line B-B shown

[0028] Figure 10 For Figure 6 Schematic diagram of the electromagnetic shielding part shown from another perspective

[0029] Figure 11 Schematic diagram of the vehicle provided by the embodiment of the present application Specific implementation mode

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Referring to "embodiment" or "embodiment mode" herein means that specific features, structures or characteristics described in connection with the embodiment or embodiment mode may be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0032] Please refer to Figures 1 to 3 , the present application provides a vehicle-mounted power supply 10, which is used to convert alternating current into direct current required by the battery, that is, the vehicle-mounted power supply 10 is equivalent to a charging converter. The vehicle-mounted power supply 10 can also be referred to as a vehicle-mounted charger, etc.

[0033] ​The vehicle-mounted power supply 10 includes: a main body 110, a circuit board 120 (Printed Circuit Board, PCB), and an electromagnetic shielding member 130. Among them, the main body 110 is the main part of the vehicle-mounted power supply 10, which includes electrical components for realizing the vehicle-mounted power supply 10 and a housing structure for protecting and carrying these electrical components. The circuit board 120 is installed on the main body 110 and together with the main body 110 forms a receiving space K1 (see Figure 1 ). The main body 110 has an outer side surface M1 (see Figure 3 ), and the circuit board 120 is installed on the outer side surface M1. The main body 110 is provided with a receiving space K2 (see Figure 3 ), and the receiving space K2 forms an opening K3 on the outer side surface M1 (see Figure 3 ), that is, the receiving space K2 communicates with the opening K3. The circuit board 120 covers at least part of the opening K3 to jointly form the receiving space K1 with the main body 110. That is to say, a part of the circuit board 120 is arranged facing the outer side surface M1, and the other part is arranged facing the receiving space K2. In this way, the circuit board 120 and the main body 110 jointly define the receiving space K1 by using the receiving space K2. Among them, the opening K3 can be completely covered by the circuit board 120 or can be partially covered, which can be determined according to specific requirements.

[0034] The circuit board 120 can also be called a core PCB board, etc., and it can be installed on the main body 110 through connecting parts such as bolts, but is not limited to this. The electromagnetic shielding member 130 is arranged in the receiving space K1 and is connected to the main body 110 and the circuit board 120 to divide the receiving space K1 into at least two chambers K11, and electronic devices and circuits, etc. can be arranged in each chamber K11. Among them, the electromagnetic shielding member 130 can also be called a shielding cover, and the electromagnetic shielding member 130 is used to shield electromagnetic interference. That is to say, the electromagnetic shielding member 130 can divide the receiving space K1 into multiple chambers K11. The specific number of chambers K11 can be, but is not limited to, 2, 3, 4, 5, 6, etc. There can be a certain connection between the chambers K11, or they can be completely isolated and not connected. The electromagnetic shielding member 130 can be, but is not limited to, materials such as aluminum, iron, stainless steel, copper, etc. that can shield electromagnetic waves. It can be understood that since the chambers K11 are separated by the electromagnetic shielding member 130, the propagation of electromagnetic waves generated by the electrical components and circuits arranged in each chamber K11 will be blocked by the electromagnetic shielding member 130, thereby avoiding or weakening the problem of electromagnetic interference formed between the electrical components and circuits in each chamber K11, and further ensuring that the vehicle-mounted power supply 10 can work normally. It can be understood that the more chambers K11 are formed by dividing the receiving space K1, the more electrical components and circuits can be separately arranged in different chambers K11, and thus a better electromagnetic shielding effect can be achieved.

[0035] For the convenience of subsequent description, a rectangular coordinate system of XYZ space is defined from the perspective shown in Figure 1 . Among them, the X-axis is parallel to the length direction of the vehicle-mounted power supply 10, the Y-axis is parallel to the width direction of the vehicle-mounted power supply 10, and the Z-axis is parallel to the positive height direction of the vehicle-mounted power supply 10. Please refer to this for the following descriptions related to the coordinate system.

[0036] Please refer to Figure 2 and Figure 3 , the electromagnetic shielding member 130 includes a first shielding member 131 and a second shielding member 132. The first shielding member 131 and the second shielding member 132 can be made of the same material or different materials, and the shapes of the first shielding member 131 and the second shielding member 132 can be the same or different. The first shielding member 131 is connected to the main body 110, and the connection manner between the two can be a detachable connection or a non-detachable connection. The second shielding member 132 is connected to the first shielding member 131 and the circuit board 120, and both the connection between the second shielding member 132 and the first shielding member 131 and the connection between the second shielding member 132 and the circuit board 120 can be a detachable connection or a non-detachable connection. The above-mentioned detachable connection can be a snap connection, a plug connection, or a connection through threaded parts such as bolts, etc., and the preset non-detachable connection can be an adhesive connection, a welding connection, etc. The first shielding member 131 and the second shielding member 132 together divide the accommodation space K1 into three chambers K11. Among them, the first shielding member 131 divides the accommodation space K1 into two chambers K11, and the second shielding member 132 further divides one of the chambers K11 into two smaller chambers K11, and finally three chambers K11 are obtained. In this embodiment, the accommodation space K1 is divided into three chambers K11, and each electrical component and circuit can be respectively arranged in the three chambers K11, so that the problem that the electrical components and circuits in the three chambers K11 interfere with each other electromagnetically can be avoided or weakened.

[0037] The following further elaborates on the basis that the accommodation space K1 is divided into three chambers K11.

[0038] Please refer to Figure 4, the first shielding member 131 faces at least partially towards the circuit board 120, that is, at least part of the first shielding member 131 is disposed opposite to the circuit board 120. Or rather, the orthographic projection of at least part of the first shielding member 131 on the circuit board 120 falls within the range where the circuit board 120 is located. With such a setting, the first shielding member 131 can be used to divide the accommodation space K1 into two chambers K11 in the first direction (the relative direction between the first shielding member 131 and the circuit board 120, that is, the Z-axis direction). One of the chambers K11 is formed by the main body 110 and the first shielding member 131 jointly enclosing, and the other chamber K11 is formed by the main body 110, the first shielding member 131, and the circuit board 120 jointly enclosing. In addition, setting the first shielding member 131 to face the circuit board 120 can also facilitate the installation and disassembly of the first shielding member 131 within the accommodation space K1.

[0039] Please refer to Figure 4 , the main body 110 includes a body 111 and a mounting portion 112. The body 111 and the circuit board 120 jointly form the accommodation space K1. The mounting portion 112 is disposed within the accommodation space K1, and the first shielding member 131 is connected to the mounting portion 112. The number of the mounting portions 112 can be multiple, such as 2, 3, 4, 5, etc. The multiple mounting portions 112 are arranged at intervals, so as to form multiple connection points with the first shielding member 131, which can make the first shielding member 131 be fixed more firmly on the main body 110. The mounting portion 112 and the first shielding member 131 can be detachably connected or non-detachably connected. In some embodiments, the vehicle-mounted power supply 10 further includes a first threaded member 140. The first threaded member 140 can be a bolt, a screw, etc. The first shielding member 131 and the mounting portion 112 form a detachable connection through the first threaded member 140.

[0040] In one embodiment, the body 111 has a bottom wall surface M2, the bottom wall surface M2 faces the circuit board 120, and the mounting portion 112 protrudes from the bottom wall surface M2, as Figure 4 shown.

[0041] In another embodiment, the body 111 has a first side wall surface M3 and a second side wall surface M4, and the first side wall surface M3 and the second side wall surface M4 are disposed opposite to each other. The mounting portion 112 includes a first mounting portion 1121 and a second mounting portion 1122. The first mounting portion 1121 protrudes from the first side wall surface M3, and the second mounting portion 1122 protrudes from the second side wall surface M4, as Figure 5 shown.

[0042] Please refer to Figure 4, the second shielding member 132 is disposed between the circuit board 120 and the first shielding member 131. With this arrangement, the cavity K11 formed by the main body 110, the circuit board 120, and the first shielding member 131 can be further divided into two smaller cavities K11 in the second direction (i.e., the X-axis direction) by the second shielding member 132. Therefore, the first shielding member 131 and the second shielding member 132 can jointly divide the accommodation space K1 into three cavities K11.

[0043] Please refer to Figure 4 for reference Figure 6 , the second shielding member 132 includes a first connecting portion 1321, an intermediate portion 1322, and a second connecting portion 1323. The first connecting portion 1321 and the second connecting portion 1323 are respectively bent and connected to opposite ends of the intermediate portion 1322. That is to say, the first connecting portion 1321 is connected to one end of the intermediate portion 1322, and the second connecting portion 1323 is connected to the end of the intermediate portion 1322 away from the first connecting portion 1321, and the first connecting portion 1321, the intermediate portion 1322, and the second connecting portion 1323 are bent and connected in sequence. Among them, the first connecting portion 1321 faces the circuit board 120 and is connected to the circuit board 120, and the second connecting portion 1323 faces the first shielding member 131 and is connected to the first shielding member 131. The intermediate portion 1322 further divides the cavity K11 formed by the main body 110, the circuit board 120, and the first shielding member 131 into two smaller cavities K11. Therefore, in this structural form, the intermediate portion 1322 mainly plays an electromagnetic shielding role. Among them, the connection form between the first connecting portion 1321 and the circuit board 120 can be a detachable connection or a non-detachable connection. Similarly, the connection form between the second connecting portion 1323 and the first shielding member 131 can be a detachable connection or a non-detachable connection.

[0044] Next, the three cavities K11 will be named the first cavity K111, the second cavity K112, and the third cavity K113 in sequence, as Figure 4 shown. Among them, the first cavity K111 is separated from the second cavity K112 and the third cavity K113 by the first shielding member 131, and the second cavity K112 and the third cavity K113 are separated by the second shielding member 132. In the Z-axis direction, the first cavity K111 and the second cavity K112 achieve electromagnetic shielding through the first shielding member 131, and the first cavity K111 and the third cavity K113 achieve electromagnetic shielding through the first shielding member 131. In the X-axis direction, the second cavity K112 and the third cavity K113 achieve electromagnetic shielding through the second shielding member 132.

[0045] In some embodiments, please refer to Figure 4 and Figure 6, the first connecting portion 1321 is disposed at an interval from the circuit board 120. For example, the vehicle-mounted power supply 10 further includes a pin 170 and a second threaded member 150. The pin 170 is connected to the circuit board 120 and protrudes from the side of the circuit board 120 facing the first connecting portion 1321. The first connecting portion 1321 and the pin 170 form a detachable connection through the second threaded member 150. The second threaded member 150 can be a bolt, a screw, or the like.

[0046] In some embodiments, please refer to Figure 6 and Figure 7 , the first connecting portion 1321 is attached to the circuit board 120, that is, there is no spaced-apart space between the first connecting portion 1321 and the circuit board 120. With such a setting, the second chamber K112 and the third chamber K113 can be separated more thoroughly, thereby facilitating the improvement of the electromagnetic shielding effect of the second shielding member 132, and as much as possible avoiding the EMC influence between the electrical components and circuits in the second chamber K112 and the third chamber K113.

[0047] In some embodiments, please refer to Figure 4 and Figure 6 , the second connecting portion 1323 is attached to the first shielding member 131, that is, there is no spaced-apart space between the second connecting portion 1323 and the first shielding member 131. With such a setting, the second chamber K112 and the third chamber K113 can be separated more thoroughly, thereby facilitating the improvement of the electromagnetic shielding effect of the second shielding member 132, and as much as possible avoiding the EMC influence between the electrical components and circuits in the second chamber K112 and the third chamber K113.

[0048] Please refer to Figure 4 , the first shielding member 131 and the second shielding member 132 are detachably connected. With such a setting, it is more convenient for the installation and disassembly of the first shielding member 131, the second shielding member 132, and the electrical components. The detachable connection manner of the first shielding member 131 and the second shielding member 132 can be, but is not limited to, snap connection, plug connection, or connection through a threaded member. For example, the vehicle-mounted power supply 10 further includes a third threaded member 160. The third threaded member 160 can be a bolt, a screw, or the like. The first shielding member 131 and the second shielding member 132 are fixed together through the third threaded member 160.

[0049] Please refer to Figures 8 to 10 , the main body 110 includes a body 111 and an isolation portion 113 (as shown in Figure 9 ), the body 111 has a bottom wall surface M2, the bottom wall surface M2 faces the circuit board 120, the isolation portion 113 protrudes from the bottom wall surface M2, and the isolation portion 113 is used to form a chamber K11. The first shielding member 131 includes a shielding main body 1311 and a bending portion 1312 (as shown in Figure 9 and Figure 10As shown, the shielding body 1311 faces the circuit board 120 and is connected to the second shielding member 132. The bending portion 1312 extends by bending from the edge of the shielding body 1311 in a direction away from the circuit board 120 (i.e., the bending portion 1312 is bent and connected to the shielding body 1311), and the bending portion 1312 is located on a side of the isolation portion 113 away from the chamber K11. Optionally, the bending portion 1312 is in contact with the isolation portion 113, which can increase the contact area between the bending portion 1312 and the isolation portion 113 and reduce the possibility of a gap between the two, thereby improving the electromagnetic shielding effect.

[0050] Please refer to Figure 11 , the present application also provides a vehicle 100, which may be, but is not limited to, a sedan, an off-road vehicle, a pickup truck, a minivan, a bus, a truck, a bus, etc. The vehicle 100 includes the vehicle-mounted power supply 10 described in any of the above embodiments. The vehicle 100 may further include a battery, which is electrically connected to the vehicle-mounted power supply 10. When the vehicle 100 is charged at a charging station, the vehicle-mounted power supply 10 is used to convert the alternating current of the charging station into the direct current required by the battery.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. A vehicle-mounted power supply, characterized in that: The vehicle-mounted power supply comprises: main body; A circuit board, the circuit board is mounted on the main body and together with the main body forms a receiving space; and An electromagnetic shielding component is disposed in the receiving space and connected to the main body and the circuit board to divide the receiving space into at least two chambers, and the electromagnetic shielding component is used for shielding electromagnetic waves.

2. The vehicle-mounted power supply according to claim 1, characterized in that: The electromagnetic shielding member includes a first shielding member and a second shielding member, wherein the first shielding member is connected to the main body, and the second shielding member is connected to the first shielding member and the circuit board, and the first shielding member and the second shielding member together divide the receiving space into three chambers.

3. The vehicle-mounted power supply according to claim 2, characterized in that: The first shielding member includes a shielding body and a bending portion. The shielding body faces the circuit board and is connected to the second shielding member. The bending portion is bent and connected to the shielding body.

4. The vehicle-mounted power supply according to claim 2, characterized in that: The main body includes a body and a mounting portion. The body and the circuit board together form the receiving space. The mounting portion is arranged in the receiving space. The first shielding member is connected to the mounting portion.

5. The vehicle-mounted power supply according to claim 4, characterized in that: The main body has a bottom wall surface, the bottom wall surface faces the circuit board, and the mounting portion is protruded from the bottom wall surface; And / or, the main body has a first side wall surface and a second side wall surface, the first side wall surface and the second side wall surface are arranged opposite to each other, the mounting portion includes a first mounting portion and a second mounting portion, the first mounting portion is protruded from the first side wall surface, and the second mounting portion is protruded from the second side wall surface.

6. The vehicle-mounted power supply according to claim 2, characterized in that: The second shielding member is disposed between the circuit board and the first shielding member.

7. The vehicle-mounted power supply according to claim 2, characterized in that: The second shielding member includes a first connecting portion, a middle portion, and a second connecting portion. The first connecting portion and the second connecting portion are respectively connected to opposite ends of the middle portion. The first connecting portion is connected to the circuit board, and the second connecting portion is connected to the first shielding member.

8. The vehicle-mounted power supply according to claim 7, characterized in that: The first connecting portion is attached to the circuit board, and / or the second connecting portion is attached to the first shielding component.

9. The vehicle-mounted power supply according to claim 2, characterized in that: The first shielding member and the second shielding member are detachably connected.

10. A vehicle, characterized in that: The vehicle comprises the on-board power supply according to any one of claims 1 to 9.

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