Sheath and power supply

Abstract

The utility model relates to the technical field of power supplies, and discloses a sheath and a power supply. The sheath includes a main body portion and a first isolation portion. The main body part is used for accommodating a power input side assembly. The power input side assembly comprises a transformer. The first isolation part is connected with the main body part. The first isolation part is configured to be arranged between the power input side assembly and the power output side assembly and is used for prolonging the creepage distance between the power input side assembly and the power output side assembly. Therefore, an enough creepage distance can be formed between the power supply input side assembly and the power supply output side assembly so as to ensure that the safety requirement is met, and the miniaturization design requirement of the power supply is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board, in particular to a sheath and a power supply. BACKGROUND

[0002] In the related art, with the continuous miniaturization of power supply design, the structural layout inside the power supply also faces unprecedented challenges. In particular, the distance between the circuits and components on the input side of the power supply and the circuits and components on the output side is greatly compressed, which undoubtedly increases the difficulty of meeting the safety specification requirements of the power supply.

[0003] In order to solve this problem, the common method at present is to perform encapsulation treatment on the components with insufficient safety distance, so as to enhance the insulation and safety. However, although this method can solve the problem to a certain extent, it hides high labor costs behind, and the entire operation process is complicated, which brings many inconveniences to actual production. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide a sheath and a power supply, which separates the power supply input side assembly and the power supply output side assembly by a first isolation part, thereby prolonging the creepage distance between the power supply input side assembly and the power supply output side assembly, so that encapsulation treatment on the surface of the power supply input side assembly or the power supply output side assembly can be avoided, the production process can be simplified, and the labor cost can be reduced, so as to at least partially solve the above technical problems.

[0005] The present application provides a sheath, comprising:

[0006] A main body part for accommodating a power supply input side assembly; wherein the power supply input side assembly comprises a transformer;

[0007] A first isolation part connected with the main body part, the isolation part is configured to be arranged between the power supply input side assembly and a power supply output side assembly, and is used to prolong the creepage distance between the power supply input side assembly and the power supply output side assembly.

[0008] In some embodiments, the sheath further comprises an abutting part connected with the main body part, used to abut against the power supply input side assembly.

[0009] In some embodiments, the sheath further comprises a second isolation part and a third isolation part, the second isolation part is connected with the first isolation part and is not connected with the main body part, and the third isolation part is connected with the first isolation part and the second isolation part away from one end of the PCB main board.

[0010] In some embodiments, the sheath further comprises an extension configured to be connected to the card interface of the PCB mainboard; the extension is connected to the second isolation portion and extends towards the PCB mainboard.

[0011] In some embodiments, the second isolation portion is provided with a convex ridge configured to abut against the PCB mainboard after the extension is connected to the card interface.

[0012] In some embodiments, the main body portion is provided with a first mounting hole and a second mounting hole; the first mounting hole is configured to pass through the input side pin of the transformer, and the second mounting hole is configured to pass through the secondary fly pin connected to the output side pin of the transformer.

[0013] In some embodiments, the main body portion is provided with a first recess and a second recess arranged at intervals; the transformer is provided with a mounting portion, and the input side pin is arranged on the mounting portion; the first recess is configured to accommodate the mounting portion; the second mounting hole is arranged on the second recess; and the second recess is configured to position and mount the power input side assembly and is used for connecting the power input side assembly.

[0014] In some embodiments, the power input side assembly further comprises a common mode inductor, and the power output side assembly comprises an output side capacitor.

[0015] The embodiments of the present application further provide a power supply comprising a PCB mainboard and the sheath as described above.

[0016] The PCB mainboard is provided with an input area and an output area; the input area is provided with an input side circuit of the power supply, and the output area is provided with an output side circuit of the power supply; the power input side assembly is arranged on the input area and is electrically connected to the input side circuit, and the power output side assembly is arranged on the output area and is electrically connected to the output side circuit; and the input area and the output area are provided with a card interface configured to connect the extension in the sheath.

[0017] In some embodiments, the power output side assembly further comprises a PCB subboard provided with an output side sub-circuit of the power supply.

[0018] The sheath and the power supply provided by the embodiments of the present application accommodate the power supply input side assembly through the main body part, so as to fix the power supply input side assembly to the PCB mainboard through the main body part, and set the first isolation part between the power supply input side assembly and the power supply output side assembly, so as to prolong the creepage distance between the power supply input side assembly and the power supply output side assembly. Thus, the power supply input side assembly and the power supply output side assembly can have sufficient creepage distance to ensure compliance with the safety requirements, and meet the miniaturization design requirements of the power supply. Meanwhile, after prolonging the creepage distance between the power supply input side assembly and the power supply output side assembly by the first isolation part, it is not necessary to perform the encapsulation treatment on the surface of the power supply input side assembly or the power supply output side assembly, so as to simplify the production process and reduce the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] The technical scheme and other beneficial effects of the present application will be apparent through the following detailed description of the specific embodiments of the present application combined with the drawings.

[0020] Figure 1 The structure schematic view of the sheath provided by the embodiments of the present application.

[0021] Figure 2 The structure schematic view of the sheath provided by the embodiments of the present application.

[0022] Figure 3 The structure schematic view of the PCB mainboard provided by the embodiments of the present application.

[0023] Figure 4 The front view of the PCB mainboard provided by the embodiments of the present application.

[0024] Figure 5 The top view of the PCB mainboard provided by the embodiments of the present application.

[0025] LIST OF REFERENCE NUMERALS

[0026] 10-sheath, 110-main body part, 1110-first mounting hole, 1120-first groove, 1130-second mounting hole, 1140-second groove, 120-first isolation part, 130-abutment part, 140-second isolation part, 150-third isolation part, 160-extension part, 170-convex ridge, 20-PCB mainboard, 210-input area, 220-output area, 230-clamping interface, 30-power supply input side assembly, 40-power supply output side assembly. DETAILED DESCRIPTION

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of the specific examples are described in the following. Of course, they are merely examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to the reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0032] Specifically, please refer to Figures 1 to 5 The sheath 10 provided by the embodiments of the present application includes a main body part 110 and an isolation part 120. The main body part 110 is used to accommodate the power input side assembly 30. The power input side assembly 30 includes a transformer. The first isolation part 120 is connected with the main body part 110. The first isolation part 120 is configured to be arranged between the power input side assembly 30 and the power output side assembly 40, and is used to extend the creepage distance between the power input side assembly 30 and the power output side assembly 40.

[0033] In the embodiments of the present application, the power input side assembly 30 is accommodated by the main body part 110, so as to fix the power input side assembly 30 to the PCB main board 20 through the main body part 110. The first isolation part 120 is arranged between the power input side assembly 30 and the power output side assembly 40, so as to extend the creepage distance between the power input side assembly 30 and the power output side assembly 40. Thus, the power input side assembly and the power output side assembly can have sufficient creepage distance to ensure compliance with safety regulations, meeting the miniaturization design requirements of the power supply. At the same time, after extending the creepage distance between the power input side assembly 30 and the power output side assembly 40 by the first isolation part 120, it is not necessary to perform encapsulation treatment on the outer surface of the power input side assembly 30 or the power output side assembly 40, which can simplify the production process and reduce labor costs.

[0034] The sheath 10 in the embodiments of the present application is particularly suitable for power supplies, serving as a power supply sheath, thereby meeting the miniaturization design requirements of the power supply.

[0035] It should be noted that the first isolation part 120 is made of insulating material, so that the isolation part 120 can be insulatively arranged between the power input side assembly 30 and the power output side assembly 40, ensuring that the creepage distance between the power input side assembly 30 and the power output side assembly 40 meets the safety regulations.

[0036] In some embodiments, the main body 110 and the first isolation portion 120 are integrally injection molded. Thus, the main body 110 and the first isolation portion 120 are both made of plastic material to ensure that they are both insulators. At the same time, the integrally injection molded main body 110 and first isolation portion 120 can also reduce the processing difficulty of the sheath 10 and improve production efficiency. Moreover, only one material can be used to form the sheath 10, which also reduces the material cost and labor cost of sheath 10 production.

[0037] As shown in Figure 1 and Figure 2 , the main body 110 and the isolation portion 120 are arranged at an angle. Specifically, the main body 110 is attached to the PCB mainboard 20. The main body 110 and the PCB mainboard 20 can be fixed to each other by a dispensing process. The first isolation portion 120 is perpendicular to the main body 110. Thus, the first isolation portion 120 can separate the power input side assembly 30 and the power output side assembly 40, so that the creepage distance between the power input side assembly 30 and the power output side assembly 40 is at least greater than 6.8 millimeters, to ensure that the creepage distance between the power input side assembly 30 and the power output side assembly 40 meets the safety regulations.

[0038] Please refer to Figure 3 , the height of the first isolation portion 120 is the same as the height of the power input side assembly 30 and / or the power output side assembly 40, or the height of the first isolation portion 120 is greater than the height of the power input side assembly 30 and / or the power output side assembly 40. Thus, it can be ensured that the isolation portion 120 can extend the creepage distance between the power input side assembly 30 and the power output side assembly 40. Specifically, when the height of the power input side assembly 30 is greater than the height of the power output side assembly 40, the height of the first isolation portion 120 is greater than or equal to the height of the power input side assembly 30. When the height of the power input side assembly 30 is less than the height of the power output side assembly 40, the height of the first isolation portion 120 is greater than or equal to the height of the power output side assembly 40.

[0039] As shown in Figure 1 and Figure 2 , in some embodiments, the first isolation portion 120 can be provided as a plurality of isolation segments connected in sequence, and each adjacent two isolation segments are arranged at an angle. Thus, the cross section of the first isolation portion 120 is provided in the shape of a plurality of lines. Alternatively, the cross section of the first isolation portion 120 can also be provided in the shape of an arc, a semicircle, a polygon or other shapes, as long as the isolation portion 120 can separate the power input side assembly 30 and the power output side assembly 40 to extend the creepage distance between them.

[0040] Please refer to Figure 1 and Figure 2In some embodiments, the sheath 10 further comprises an abutting portion 130. The abutting portion 130 is connected with the main body portion 110 and is used to abut against the power input side assembly 30.

[0041] It can be understood that the abutting portion 130 can abut against the side of the power input side assembly 30 to limit the position of the power input side assembly 30, so as to lock the power input side assembly 30 on the main body portion 110 at a region corresponding to the region between the abutting portion 130 and the first isolation portion 120, thereby achieving the positioning installation of the power input side assembly 30.

[0042] As shown in Figure 1 and Figure 2 , the abutting portion 130 and the first isolation portion 120 are respectively located on the left and right sides of the main body portion 110.

[0043] In some embodiments, the abutting portion 130 is integrally injection molded with the main body portion 110.

[0044] In some embodiments, the height of the abutting portion 130 is equal to the height of the first isolation portion 120. Alternatively, the height of the abutting portion 130 is slightly smaller than the height of the first isolation portion 120. Alternatively, the height of the abutting portion 130 is slightly larger than the height of the first isolation portion 120.

[0045] As shown in Figure 1 and Figure 2 , the sheath 10 further comprises a second isolation portion 140 and a third isolation portion 150. The second isolation portion 140 is connected with the first isolation portion and is not connected with the main body portion. The third isolation portion 150 is connected with the first isolation portion and the end of the second isolation portion 140 away from the PCB main board.

[0046] It can be understood that the second isolation portion 140 and the third isolation portion 150 can further extend the creepage distance between the power input side assembly 30 and the power output side assembly 40, while ensuring the safety of the PCB main board.

[0047] It should be noted that the third isolation portion 150 can shield the side of the power output side assembly 40 away from the PCB main board 20, so as to ensure that the sheath 10 can sufficiently isolate the power input side assembly 30 and the power output side assembly 40. Thus, it is ensured that the creepage distance between the power input side assembly 30 and the power output side assembly 40 is large enough.

[0048] In some embodiments, the third isolation portion 150 is located on the opposite sides of the first isolation portion 120 in the thickness direction of the main body portion 110, and the third isolation portion 150 extends in the direction from the power input side assembly 30 to the power output side assembly 40. Thus, it is ensured that the third isolation portion 150 can extend to the upper side of the power output side assembly 40 and shield the upper side of the power output side assembly 40.

[0049] In some embodiments, the first isolation portion 120, the second isolation portion 140, the third isolation portion 150 and the main body portion 110 are integrally formed.

[0050] In some embodiments, the first isolation portion 120 is connected perpendicularly to the main body portion 110. The second isolation portion 140 can also be connected perpendicularly to the first isolation portion 120. The third isolation portion 150 is connected perpendicularly to the first isolation portion 120 and the second isolation portion 140 respectively. In this way, the third isolation portion 150 is arranged in parallel to the main body portion 110. The third isolation portion 150 and the main body portion 110 are located on opposite sides of the thickness direction of the isolation portion 120 respectively, so that the third isolation portion 150, the first isolation portion 120 and the main body portion 110 are arranged in a substantially Z shape.

[0051] As shown in FIG. 1, the third isolation portion 150 can have a width greater than or equal to the width of the power output side assembly 40, so that the third isolation portion 150 can sufficiently shield the side of the power output side assembly 40 away from the PCB main board 20, and ensure that the protective sleeve 10 can sufficiently isolate the power output side assembly 40. Figure 1

[0052] In some embodiments, the protective sleeve 10 further comprises an extension portion 160. The extension portion 160 is used to be clamped with a card interface on the PCB main board. The extension portion 160 is connected to the second isolation portion 140 and extends towards the direction close to the PCB main board.

[0053] It can be understood that the card interface is constructed on the PCB main board 20 to connect the extension portion 160, so as to realize the quick assembly between the protective sleeve 10 and the PCB main board.

[0054] Based on the fact that the card interface 230 is located at the junction position of the input area 210 and the output area 220, and the extension portion 160 is connected to the second isolation portion 140, it can be ensured that the second isolation portion 140 is also located at the junction position of the input area 210 and the output area 220. In this way, it can be ensured that the second isolation portion 140 can also realize the separation of components between the input area 210 and the output area 220, so as to prolong the creepage distance between the power input side assembly 30 and the power output side assembly 40.

[0055] In some embodiments, the height of the extension portion 160 is H1, and the height of the card interface 230 is H2, which satisfies: H1>H2.

[0056] It can be understood that, based on the fact that the height of the extension portion 160 is greater than the height of the card interface 230, when the extension portion 160 is clamped in the card interface 230, at least part of the extension portion 160 can pass out of the card interface 230. In this way, on the one hand, the reliability of the connection between the extension portion 160 and the card interface 230 can be ensured, and on the other hand, the isolation can also be realized on the other side of the PCB main board 20, so as to prolong the creepage distance between the components in the corresponding area and improve the safety.​

[0057] The side of the PCB mainboard 20 on which the power input side assembly 30 and the power output side assembly 40 are mounted is a first side, and the other side is a second side. When the sheath 10 is mounted on the PCB mainboard 20 from the first side, the extension portion 160 at least partially penetrates out of the card interface 230 and plays an insulating isolation role on the second side of the PCB mainboard 20. Thus, the extension portion 160 can be used to extend the creepage distance between components on the second side of the PCB mainboard, further improving the safety of the PCB mainboard 20.

[0058] In some embodiments, the extension portion 160 is integrally formed with the second isolation portion 140.

[0059] Please continue to refer to Figure 2 and Figure 3 In some embodiments, the second isolation portion 140 is provided with a convex ridge 170. The convex ridge 170 is used to abut against the PCB mainboard after the extension portion 160 is clamped in the card interface. The protruding direction of the convex ridge 170 is perpendicular to the extension direction of the extension portion 160.

[0060] It can be understood that since the extension portion 160 penetrates through the card interface 230, the convex ridge 170 is provided on the isolation portion 120. When the extension portion 160 is clamped in the card interface 230, the convex ridge 170 can abut against the PCB mainboard 20 to achieve installation limiting between the sheath 10 and the PCB mainboard 20.

[0061] In some embodiments, the PCB mainboard 20 can also be configured with a groove, the shape of which is matched with the shape of the convex ridge 170. When the extension portion 160 is clamped in the card interface 230, one end of the convex ridge 170 close to the PCB mainboard 20 is clamped in the groove. Thus, the convex ridge 170 can also be used to form a connection with the PCB mainboard 20. On the one hand, it is convenient for positioning and installation between the sheath 10 and the PCB mainboard 20, and on the other hand, it can ensure reliable fixation of the sheath 10.

[0062] As shown in Figure 1 and Figure 2 The number of convex ridges 170 can be two. The two convex ridges 170 are spaced apart, and both of the two convex ridges 170 can be provided on the side of the second isolation portion 140 away from the power output side assembly 40.

[0063] In some embodiments, the convex ridge 170 is integrally formed with the second isolation portion 140. Specifically, the convex ridge 170 is integrally injection molded with the second isolation portion 140.

[0064] Please refer to Figure 1 and Figure 2In some embodiments, the main body 110 is configured with a first mounting hole 1110 and a second mounting hole 1130. The first mounting hole 1110 is configured to pass through the input side pins of the transformer. The second mounting hole 1130 is configured to pass through the secondary flying pin connected to the output side pins of the transformer.

[0065] It can be understood that the input side pins of the transformer are passed through the first mounting hole 1110 configured on the main body 110, so that the transformer can pass through the sheath 10 to form an electrical connection with the PCB mainboard 20. The secondary flying pin is passed through the second mounting hole 1130 configured on the main body 110, so that the secondary flying pin can pass through the sheath 10 to form an electrical connection with the output side pins of the transformer.

[0066] It should be noted that the number of first mounting holes 1110 is the same as the number of input side pins on the transformer. When the transformer is provided with four input side pins, the first mounting hole 1110 is provided with four. When the transformer is provided with five input side pins, the first mounting hole 1110 is provided with five. When the first mounting hole 1110 is provided with at least two, the at least two first mounting holes 1110 are spaced apart.

[0067] As shown in FIG. 1 1, the first mounting hole 1110 can be provided as a square hole to adapt to the shape of the input side pins of the transformer. In other embodiments of the present application, the first mounting hole 1110 can also be provided as a circle, an ellipse or any other shape, as long as the input side pins of the transformer can pass through the first mounting hole 1110 to form an electrical connection with the PCB mainboard 20. Figure 1 It should be noted that each secondary flying pin is connected to an output side pin. The number of second mounting holes 1130 is the same as the number of output side pins on the transformer. When the transformer is provided with two output side pins, the second mounting hole 1130 is provided with two. When the transformer is provided with four output side pins, the second mounting hole 1130 is provided with four. When the second mounting hole 1130 is provided with at least two, the at least two second mounting holes 1130 are spaced apart.

[0068] As shown in FIG. 12, the second mounting hole 1130 can be provided as a circular hole to adapt to the shape of the secondary flying pin. In other embodiments of the present application, the second mounting hole 1130 can also be provided as a square, an ellipse or any other shape, as long as the secondary flying pin can pass through the second mounting hole 1130 to form an electrical connection with the output side pins of the transformer.

[0069] Figure 2 It should be noted that each secondary flying pin is connected to an output side pin. The number of second mounting holes 1130 is the same as the number of output side pins on the transformer. When the transformer is provided with two output side pins, the second mounting hole 1130 is provided with two. When the transformer is provided with four output side pins, the second mounting hole 1130 is provided with four. When the second mounting hole 1130 is provided with at least two, the at least two second mounting holes 1130 are spaced apart.

[0070] In some embodiments, the first mounting hole 1110 and the second mounting hole 1130 are respectively located at opposite ends of the main body 110.

[0071] ​Please continue to refer to Figure 1 In some embodiments, the main body 110 is formed with a first groove 1120. The transformer is configured with a mounting portion. The input side pins are provided on the mounting portion. The first groove 1120 is configured to accommodate the mounting portion.

[0072] It can be understood that when the power input side assembly 30 is installed, it needs to be attached to the main body 110. The mounting portion configured on the power input side assembly 30 will cause the power input side assembly 30 and the main body 110 to be unable to attach. Therefore, by forming the first groove 1120 on the main body 110, the first groove 1120 is used to accommodate the mounting portion, which can prevent the power input side assembly 30 from being unable to attach to the main body 110 due to the presence of the mounting portion.

[0073] As Figure 1 mentioned, the first groove 1120 can be provided in two, and symmetrically arranged at the position where the first mounting hole 1110 is provided on the main body 110. The first groove 1120 is provided in a substantially L-shaped shape. Therefore, the two first grooves 1120 can accommodate two mounting portions on the power input side assembly 30 respectively. Each mounting portion is connected with two input side pins.

[0074] It should be noted that the mounting portion of the transformer is a component connected to the input side pins of the transformer, which is provided on the outer surface of the transformer and is used to realize the electrical connection between the input side pins and the transformer.

[0075] Please continue to refer to Figure 1 In some embodiments, the main body 110 is also formed with a second groove 1140. The second mounting hole 1130 is configured on the second groove 1140. The second groove 1140 is configured to position and install the power input side assembly 30, and is used to connect the power input side assembly 30.

[0076] It can be understood that the power input side assembly 30 has a protruding portion protruding towards the main body 110. In order to ensure that the power input side assembly 30 can be attached to the surface of the main body 110, the second groove 1140 is formed on the main body 110 to accommodate the protruding portion, so as to ensure the stable installation of the power input side assembly 30. At the same time, based on the cooperation between the protruding portion and the second groove 1140, the power input side assembly 30 can also be quickly positioned and installed.

[0077] As Figure 1 shown, the second groove 1140 can be arranged close to the isolation portion 120.

[0078] In some embodiments, the power input side assembly 30 further comprises a common mode inductor. The power output side assembly 40 comprises an output side capacitor.

[0079] AsFigure 1 and Figure 3 As shown in FIG. 1, the power supply further includes a PCB main board 20 and the sheath 10 as in the foregoing embodiments. The PCB main board 20 is provided with an input area 210 and an output area 220. The input area 210 is provided with input-side circuits of the power supply. The output area 220 is provided with output-side circuits of the power supply. The power supply input-side assembly 30 is arranged on the input area and electrically connected to the input-side circuits. The power supply output-side assembly 40 is arranged on the output area and electrically connected to the output-side circuits. The input area 210 and the output area 220 are provided with a clamping interface 230 for clamping the extension 160 of the sheath 10.

[0080] In the embodiments of the present application, the power supply input-side assembly 30 is accommodated by the main body 110 to fix the power supply input-side assembly 30 to the PCB main board 20 through the main body 110, and the first isolation portion 120 is arranged between the power supply input-side assembly 30 and the power supply output-side assembly 40 to extend the creepage distance between the power supply input-side assembly 30 and the power supply output-side assembly 40. Thus, the power supply input-side assembly 30 and the power supply output-side assembly 40 can have sufficient creepage distance to ensure compliance with safety regulations, meeting the miniaturization design requirements of the power supply. At the same time, after extending the creepage distance between the power supply input-side assembly 30 and the power supply output-side assembly 40 by the first isolation portion 120, it is not necessary to perform encapsulation treatment on the outer surface of the power supply input-side assembly 30 or the power supply output-side assembly 40, which can simplify the production process and reduce labor costs.

[0081] It can be understood that the input area 210 of the PCB main board 20 is used to mount the power supply input-side assembly 30, and the power supply input-side assembly 30 is electrically connected to the input-side circuits on the input area 210. The output area 220 of the PCB main board is used to mount the power supply output-side assembly 40, and the power supply output-side assembly 40 is electrically connected to the output-side circuits on the output area 220.

[0082] Please continue to refer to Figure 4 Figure 5 The clamping interface 230 can include two notched sections arranged at an angle, and the two notched sections are arranged at an obtuse angle. Based on the shape of the clamping interface 230, the output area 220 can be arranged in a trapezoidal shape, and the input area 210 is all the areas on the PCB main board 20 except the output area 220. In other embodiments of the present application, the clamping interface 230 can also be arranged in other shapes, and the shape and size of the clamping interface 230 can be reasonably arranged based on the shape of the input area 210 and the output area 220 on the PCB main board 20.

[0083] In some embodiments, the power supply output-side assembly 40 further includes a PCB sub-board. The PCB sub-board is provided with output-side sub-circuits of the power supply.

[0084] It can be understood that the PCB sub-plate is electrically connected with the PCB main plate, so that the output side sub-circuit is electrically connected with the output side circuit. The power output side sub-assembly can also be arranged on the PCB sub-plate, and the power output side sub-assembly is electrically connected with the output side sub-circuit.

[0085] In some embodiments, the PCB sub-plate belongs to the power output side assembly 40, and is arranged perpendicularly to the PCB main plate.

[0086] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0087] The sheath and the power supply provided by the embodiments of the present application are described in detail above, and the principle and implementation of the present application are described by applying specific examples. The above embodiment is only used to help understand the technical solution and the core idea of the present application; the ordinary skilled in the art should understand that the technical solution recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A sheath, characterized in that, include: The main body is used to house a power input side assembly; wherein the power input side assembly includes a transformer; A first isolation section is connected to the main body section. The isolation section is configured to be disposed between the power input side assembly and the power output side assembly, and is used to extend the creepage distance between the power input side assembly and the power output side assembly.

2. The sheath as described in claim 1, characterized in that, The sheath also includes an abutment portion connected to the main body portion for abutting the power input side component.

3. The sheath as described in claim 2, characterized in that, The sheath also includes a second isolation portion and a third isolation portion. The second isolation portion is connected to the first isolation portion but not to the main body portion. The third isolation portion is connected to the end of the first and second isolation portions away from the PCB motherboard.

4. The sheath as described in claim 3, characterized in that, The sheath also includes an extension for engaging with a card interface on the PCB motherboard; the extension is connected to the second isolation portion and extends toward the PCB motherboard.

5. The sheath as described in claim 4, characterized in that, The second isolation part is provided with a protrusion for abutting against the PCB motherboard after the extension part is engaged with the card interface; the protrusion direction of the protrusion is perpendicular to the extension direction of the extension part.

6. The sheath as described in any one of claims 1-5, characterized in that, The main body has a first mounting hole and a second mounting hole. The first mounting hole is configured to allow the input side pin of the transformer to pass through, and the second mounting hole is configured to allow the secondary flying wire pin connected to the output side pin of the transformer to pass through.

7. The sheath as described in claim 6, characterized in that, The main body has a first groove and a second groove spaced apart; wherein the transformer has a mounting portion, the input side pin is located on the mounting portion, and the first groove is configured to accommodate the mounting portion; the second mounting hole is formed in the second groove, wherein the second groove is configured to position and mount the power input side component and to connect the power input side component.

8. The sheath as described in claim 6, characterized in that, The power input side component further includes a common-mode inductor, and the power output side component includes an output side capacitor.

9. A power supply, characterized in that, The power supply includes a PCB motherboard and a sheath as described in any one of claims 1 to 8; The PCB motherboard has an input area and an output area. The input area has the input side circuit of the power supply, and the output area has the output side circuit of the power supply. The power supply input side component is located in the input area and is electrically connected to the input side circuit, and the power supply output side component is located in the output area and is electrically connected to the output side circuit. A card interface for snapping into the extension in the sheath is provided at the junction of the input area and the output area.

10. The power supply as claimed in claim 9, characterized in that, The power output side assembly also includes a PCB sub-board, on which the power output side sub-circuit is provided.

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