Transformer framework, transformer, power supply module and electric equipment
By adopting plastically deformable solid-wire pins and side plates in the transformer framework, the problems of difficult production and poor product quality in the prior art are solved, and more efficient production and stronger pressure resistance are achieved.
Patent Information
- Application Number
- CN202323462299.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-18
AI Technical Summary
The design of existing transformer skeletons has problems such as difficult production, poor product quality, high production cost and poor pressure resistance. Especially when dealing with thick windings or multi-stranded wires, short circuits, tin slag splashing and localized High temperature and other problems.
A transformer skeleton is designed, adopting two side plates and a bobbin structure, with a solid wire pin and a solid wire part. The solid wire part is plastically deformed to fix the wire part, and the side plates are matched to prevent tin slag from splashing. Input, the spacing consistency and connection firmness of the solid wire pins are increased, avoidance slots and clamp slots are set to optimize the structure, and bent portions and creeper walls are added to improve voltage resistance.
It effectively solves the problems of difficulty in winding the thread foot, splashing tin slag and local high temperature, improves product quality and pressure resistance, reduces production costs, and achieves more efficient automated production and lower process difficulty.
Smart Images
Figure CN222365465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a transformer frame, a transformer provided with the transformer frame, a power module provided with the transformer, and an electrical device provided with the power module. Background Art
[0002] Transformers are widely used in electrical equipment to ensure the normal operation of electrical equipment. The existing transformer skeleton pins mainly have the following two structures:
[0003] The first is the self-pin structure, which is to directly lead out the winding of the transformer winding and use it as the transformer pin; however, this pin structure has the following problems: First, the spacing between the pins is difficult to control, and the winding structure of different windings may be different; for example, in the same transformer, the winding of some windings is single-stranded wire, and the winding of some windings is multi-stranded wire, which will cause the transformer pin diameter to be different, the spacing tolerance between the pins is large and difficult to produce, making it difficult to achieve standardization and automated production of transformers with this structure. Second, the pins need to be tinned manually, and there is a risk of the operator's hands being scalded by the tin liquid, and excessive reliance on manual technology leads to high production costs, low efficiency and poor product quality, so it is difficult to achieve mass production. Third, during the pin tinning process, tin slag is also easy to splash into the wire package, resulting in poor product withstand voltage.
[0004] The second type is the straight pin structure, such as Figure 1As shown, the transformer 9 of this structure is provided with a winding pin 911 on its skeleton 91, so that the wire pin 92 of the winding of the transformer 9 can be wound on the winding pin 911; although the transformer 9 of the straight-pin structure has higher product quality than the transformer 9 of the self-pin structure mentioned above, the winding pin 911 can realize automatic tinning treatment, which can meet the requirements of mass production; however, the transformer 9 of the straight-pin structure still has the following problems: First, when the winding of the winding is a thick wire or a multi-strand wire, it will increase the difficulty of winding the wire pin 92 onto the winding pin 911, and due to the spacing design problem between the winding pins 911, the spacing between the windings on two adjacent winding pins 911 is too close, which leads to a short circuit between the winding pins 911 after the winding pins 911 and the wire pin 92 are tinned. Second, since the total outer diameter of the thick winding or multi-strand winding is large, even larger than the pin diameter of the winding pin 911, the winding pin 911 is prone to be skewed and deformed due to force during the process of winding the wire pin 92 onto the winding pin 911 and during the tinning process after the winding. Third, due to the wire diameter problem, the thick winding or multi-strand winding basically needs to be manually wound onto the winding pin 911, and the winding process is prone to be detached from the winding pin 911 due to stress, resulting in great difficulty in winding. Fourth, the winding pin 911 after winding is prone to be too high, making tinning difficult; and during the tinning process, tin slag is also prone to splashing into the wire package, resulting in poor voltage resistance. Fifth, due to the small cross-section of the winding pin 911 of the transformer 9 of this structure under the same specifications, the position of the winding pin 911 is prone to local high temperature during actual operation, affecting the use of the transformer 9.
[0005] It can be seen that the design of the existing transformer skeleton is still insufficient, resulting in the transformer still having shortcomings such as great difficulty in production, poor product quality, and high production cost. Summary of the invention
[0006] In order to solve the above problems, the first purpose of the utility model is to provide a transformer skeleton which is easy to produce, can reduce the difficulty and cost of the production process, and can improve the product quality.
[0007] The second object of the utility model is to provide a transformer provided with the above transformer skeleton.
[0008] The third object of the utility model is to provide a power module provided with the above transformer.
[0009] The fourth object of the utility model is to provide an electrical device equipped with the above-mentioned power module.
[0010] In order to achieve the first purpose of the utility model, the utility model provides a transformer skeleton, including a body, the body having two side plates and a winding drum, one side plate is connected to one end of the winding drum, the body having a core jack, the core jack penetrates the winding drum and the two side plates in the axial direction of the winding drum, wherein the side plates are provided with wire fixing pins, the wire fixing pins have a pin portion and a wire fixing portion, in the height direction of the body, the pin portion extends out of the side plate, the height direction is perpendicular to the axial direction, the wire fixing portion is located on the side of the side plate away from the winding drum, the wire fixing portion has a wire clamping groove, and the wire fixing portion can be plastically deformed.
[0011] As can be seen from the above, due to the plastic deformation of the wire fixing part, no matter whether the winding wire feet of the winding are single-strand wire, thick winding wire or multi-strand wire, the wire fixing part can reliably fix the wire feet in the wire clamping groove and prevent the wire feet from being separated from the wire fixing part, effectively solving the existing problem of wire foot winding difficulty; in addition, by arranging the wire fixing part on the side of the side plate, when the wire feet and the wire fixing part are tinned, the cooperation of the side plate can also effectively prevent tin slag from splashing into the wire package, ensuring the voltage resistance performance of the transformer provided with the transformer skeleton, and at the same time helping to improve the tinning efficiency and better reduce the production cost. Furthermore, due to the addition of the wire fixing part, the pin part of the wire fixing pin no longer needs to bear the task of connecting with the wire feet of the winding wire, so the spacing between the pin parts of the wire fixing pin can always be kept consistent, and there is no risk of bending and deformation, which effectively ensures the dimensional tolerance between the pin parts, which is conducive to improving the quality of the transformer.
[0012] A further solution is that a relief groove matching the wire clamping groove is provided on the side plate, and the relief groove penetrates the side plate in the axial direction.
[0013] As can be seen from the above, the avoidance groove provides a routing space for the winding wire, so that the wire legs of the winding wire can pass through the side plate through the avoidance groove, so that the structural layout of the transformer provided with the transformer skeleton is more reasonable, and at the same time, it can also prevent the pin portion of the fixed wire pin from being squeezed and deformed by the winding wire, thereby ensuring the position accuracy of the pin portion.
[0014] A further solution is that in the axial direction, the cross-section of the wire fixing portion is U-shaped, the wire fixing portion has a first side wall connected to the pin portion, and the free end of the second side wall of the wire fixing portion can be bent toward the first side wall for plastic deformation.
[0015] As can be seen from the above, the above design enables the wire pins of the winding wire to be better inserted into the wire clamping groove, and when the wire pins are located in the wire clamping groove, the wire fixing part can firmly fix the wire pins on itself.
[0016] A further solution is that the wire fixing pin also has a bending portion, which is connected between the pin portion and the wire fixing portion, and the bending portion causes the pin portion and the wire fixing portion to be staggered in the axial direction; the pin portion and the bending portion are connected to the side plate.
[0017] As can be seen from the above, by adding a bending portion to the wire fixing pin, the structure of the main body can be optimized and the firmness of the connection between the wire fixing pin and the side plate can be improved.
[0018] A further solution is that a slot is provided on the side panel, and the pin portion and the bent portion are interference fit with the slot; or the fixed wire pin and the side panel are connected by an insert molding process.
[0019] As can be seen from the above, the use of interference fit connection to fix the wire pins and the body is beneficial to reducing the production cost of the transformer skeleton; and the use of insert molding process to fix the wire pins and the body is beneficial to improving the firmness of the connection between the wire pins and the side plate.
[0020] A further solution is that a creepage wall is formed on each side panel, and the creepage wall extends along a first direction, and the first direction is perpendicular to the axial direction and the height direction respectively; in the axial direction, the creepage wall extends from the back of the side panel toward the winding drum; in the height direction, the creepage wall is located between the fixed wire pin and the winding drum.
[0021] As can be seen from the above, the setting of the creepage wall can increase the creepage distance between the fixed wire pin and the magnetic core, thereby improving the voltage resistance performance of the transformer provided with the transformer skeleton, so that the transformer can meet the safety standard requirements under different use environments.
[0022] A further solution is that the number of the wire fixing pins on each side panel is more than two, and the more than two wire fixing pins are distributed along the first direction; the number of the wire fixing pins on the two side panels is equal or unequal.
[0023] As can be seen from the above, the above design enables the transformer equipped with the transformer skeleton to meet the requirements of different usage environments, and when the number of fixed wire pins on the two side panels is not equal, it can also play an anti-mistake role to avoid the problem of wrong installation when installing the transformer.
[0024] In order to achieve the second purpose of the utility model, the utility model provides a transformer, including a winding and two magnetic cores, the two magnetic cores are symmetrically arranged, wherein the transformer also includes the above-mentioned transformer frame, the winding is wound on a winding drum, the wire pins of the winding are located in the wire clamping groove of a corresponding wire fixing pin, the wire fixing part is fixedly connected to the wire pin through plastic deformation, the magnetic core is installed on the body, and the middle column of the magnetic core is inserted into the magnetic core jack.
[0025] It can be seen from the above that the transformer provided with the above transformer skeleton has better working reliability, higher product quality, lower production cost and stronger voltage resistance performance.
[0026] In order to achieve the third purpose of the utility model, the utility model provides a power supply module, including a control circuit board, which also includes the above-mentioned transformer, and the pin portion is electrically connected to the control circuit board.
[0027] As can be seen from the above, the power module has better reliability, stronger voltage resistance, higher quality and lower production cost by setting the above transformer.
[0028] In order to achieve the fourth purpose of the utility model, the utility model provides an electrical device, which includes the above-mentioned power module.
[0029] It can be seen from the above that the power supply setting can have better voltage resistance performance, better working reliability, higher product quality and lower production cost by setting the above power supply module. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is the structural diagram of the existing transformer.
[0031] Figure 2 It is a structural diagram of an embodiment of the transformer of the utility model.
[0032] Figure 3 It is an exploded view of an embodiment of the transformer of the utility model.
[0033] Figure 4 It is a structural diagram of a transformer skeleton of an embodiment of the utility model transformer.
[0034] Figure 5 It is a structural diagram of the body of the transformer embodiment of the utility model.
[0035] Figure 6 It is a structural diagram of the original state of the fixed wire pins of the transformer embodiment of the utility model.
[0036] Figure 7 This is a reference diagram of the use state of the transformer embodiment of the utility model, in which the wire fixing pins are plastically deformed to fix the wire pins.
[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION
[0038] Transformer Embodiment
[0039] Reference Figures 2 to 4 The transformer 100 includes a transformer skeleton 101, a winding 102 and a magnetic core 103. The transformer skeleton 101 includes a body 1 and a fixed wire pin 2, and the fixed wire pin 2 is installed on the body 1.
[0040] Combination Figure 5The main body 1 has two side plates 11 and a bobbin 12, one side plate 11 is connected to one end of the bobbin 12, that is, the bobbin 12 is connected between the two side plates 11. The main body 1 has a magnetic core insertion hole 121, and the magnetic core insertion hole 121 penetrates the bobbin 12 and the two side plates 11 in the axial direction X of the bobbin 12. There are two magnetic cores 103, and the magnetic cores 103 are E-shaped. The magnetic cores 103 are installed on the main body 1 in a mirror-symmetrical arrangement; wherein the middle column 1031 of the magnetic core 103 is inserted into the magnetic core insertion hole 121, and the bobbin 12 is located between the two side columns 1032 of the magnetic core 103, and there is a gap between the side columns 1032 of the magnetic core 103 and the outer peripheral wall of the bobbin 12. The winding 102 is wound on the outer periphery of the bobbin 12, and the winding 102 is located in the gap.
[0041] The wire fixing pins 2 are preferably formed by stamping and bending processes, and the wire fixing pins 2 are installed on the side panel 11, and the wire fixing pins 2 are preferably located at the middle and lower part of the side panel 11. The number of wire fixing pins 2 on each side panel 11 is more than two, and the more than two wire fixing pins 2 are distributed along the first direction Y; wherein the first direction Y, the axial direction X of the winding drum 12 and the height direction Z of the main body 1 are perpendicular to each other. The number of wire fixing pins 2 on each side panel 11 may be equal or unequal. In addition, the wire fixing pins 2 on one side panel 11 are primary pins, which are connected to the wire pins 1021 of the first end of the winding of the winding 102; the wire fixing pins on the other side panel 11 are secondary pins, which are connected to the wire pins 1021 of the second end of the winding of the winding 102. For example, in this embodiment, the number of the fixed wire pins 2 on the two side panels 11 is not equal, wherein the number of the fixed wire pins 2 on the first side panel 11 is eight, and the eight fixed wire pins 2 on the side panel 11 are primary pins; the number of the fixed wire pins 2 on the second side panel 11 is six, and the six fixed wire pins 2 on the side panel 11 are secondary pins. By setting the number of the fixed wire pins 2 on the side panels 11, the transformer 100 can be applied to different use environments and meet relevant use requirements; and when the number of the fixed wire pins 2 on the two side panels 11 is not equal, it can also play a foolproof role to avoid the problem of wrong installation when the transformer 100 is installed.
[0042] In addition, in this embodiment, the wire fixing pin 2 is fixedly connected to the side plate 11 by means of interference fit, which is conducive to reducing the production cost of the transformer skeleton 101. Figure 6The wire fixing pin 2 has a pin portion 21, a wire fixing portion 22 and a bending portion 23. A clamping slot 111 and an escape slot 112 are provided on the side plate 11. The clamping slot 111 is recessed from the bottom of the side plate 11 to the top of the side plate 11, and the escape slot 112 penetrates the side plate 11 in the axial direction X of the winding drum 12; wherein, the number of the clamping slots 111 and the escape slots 112 are equal to the number of the wire fixing pins 2, and one clamping slot 111 is matched with one escape slot 112 and one wire fixing pin 2 respectively.
[0043] The pin portion 21 extends along the height direction Z of the body 1, and the bent portion 23 is connected between the wire fixing portion 22 and the pin portion 21, so that the pin portion 21 and the wire fixing portion 22 are staggered on the axis of the winding drum 12. The pin portion 21 and the bent portion 23 are inserted into the card slot 111 by interference fit, and in the height direction Z, the pin portion 21 extends out of the bottom of the side plate 11. By setting the bent portion 23 connected between the pin portion 21 and the wire fixing portion 22, the structure of the body 1 can be optimized, the layout of the slots on the side plate 11 can be more optimized and reasonable, and the firmness of the connection between the wire fixing pin 2 and the side plate 11 is improved, which is also conducive to improving the strength of the side plate 11.
[0044] The wire fixing portion 22 is located on the side of the side plate 11 facing away from the winding drum 12, and the wire fixing portion 22 has a wire clamping groove 220, and the wire clamping groove 220 and a avoiding groove 112 matching the side plate 11 are distributed along the axial direction X of the winding drum 12, and the wire clamping groove 220 is connected with the avoiding groove 112. Among them, the wire clamping groove 220 is used to accommodate the wire pins 1021 of the winding 102, and the avoiding groove 112 is used to provide a routing space for the winding 102, so that the wire pins 1021 of the winding can pass through the side plate 11 through the avoiding groove 112, and the structural layout of the transformer 100 is more reasonable; at the same time, the setting of the avoiding groove 112 can also prevent the pin portion 21 of the wire fixing pin 2 from being squeezed and deformed by the winding, thereby ensuring the position accuracy of the pin portion 21.
[0045] The wire fixing portion 22 is plastically deformable; in the axial direction X of the winding drum 12, the cross section of the wire fixing portion 22 is U-shaped, that is, the wire fixing portion 22 has a first side wall 221, a second side wall 222 and a connecting wall 223, the first side wall 221 and the second side wall 222 are arranged opposite to each other, and the first side wall 221 is connected to the bending portion 23, the connecting wall 223 is connected between the first side wall 221 and the second side wall 222, and the connecting wall 223 is preferably located at one end of the first side wall 221 and the second side wall 222 away from the bottom of the side plate 11. Among them, the free end of the second side wall 222 can be bent toward the first side wall 221 to be plastically deformed (such as Figure 7As shown in the figure, the wire pin 1021 of the winding wire is clamped and fixed in the wire clamping groove 220 to prevent the wire pin 1021 of the winding wire from being separated from the wire fixing portion 22. By designing the structure of the wire fixing portion 22, the wire pin 1021 of the winding wire can be better inserted into the wire clamping groove 220, and when the wire pin 1021 is located in the wire clamping groove 220, the wire fixing portion 22 can firmly fix the wire pin 1021 on itself.
[0046] It should be noted that, as another optional solution, the wire fixing pin 2 and the side plate 11 can be fixedly connected by an insert molding process. The wire fixing pin 2 and the body 1 are fixedly connected by an insert molding process, which is conducive to improving the firmness of the connection between the wire fixing pin 2 and the side plate 11.
[0047] In addition, a creepage wall 113 is formed on each side plate 11, and the creepage wall 113 extends along the first direction Y. In the axial direction X of the winding drum 12, the creepage wall 113 extends from the side plate 11 away from the winding drum 12; and in the height direction Z, the creepage wall 113 is located between the fixed wire pin 2 and the winding drum 12. By adding the creepage wall 113, the creepage distance between the fixed wire pin 2 and the magnetic core 103 can be increased, thereby improving the withstand voltage performance of the transformer 100, so that the transformer 100 can meet the safety standards under different use environments. Among them, the height, thickness, and shape of the creepage wall 113 can be adjusted accordingly according to the actual required creepage distance.
[0048] Since the wire fixing portion 22 is plastically deformable, regardless of whether the winding wire foot 1021 of the winding 102 is a single-strand wire, a thick winding wire or a multi-strand wire, the wire fixing portion 22 can reliably clamp the wire foot 1021 in the wire clamping groove 220 through the plastic deformation of the second side wall 222, thereby preventing the wire foot 1021 from detaching from the wire fixing portion 22, and effectively solving the problems of the existing wire foot 1021 being difficult to wind and the wire foot 1021 being easy to detach from the pin.
[0049] In addition, by arranging the wire fixing portion 22 on the side of the side plate 11, the connected wire fixing portion 22 and the wire foot 1021 can be applied to a variety of different welding methods, such as laser welding, solder paste eddy current welding, conventional tinning welding, etc., thereby providing more optional processing techniques for the transformer 100 while improving the quality of the transformer 100, better reducing production costs, improving tinning efficiency, and increasing the reliability of the welding machine between the wire fixing portion 22 and the wire foot 1021. Furthermore, since the wire fixing portion 22 and the wire foot 1021 are located on the side of the side plate 11, when the wire foot 1021 and the wire fixing portion 22 are subjected to tinning treatment, the side plate 11 can effectively prevent tin slag from splashing into the wire package with the cooperation of the side plate 11, thereby ensuring the withstand voltage performance of the transformer 100.
[0050] In addition, due to the addition of the wire fixing portion 22, the pin portion 21 of the wire fixing pin 2 no longer needs to bear the task of connecting with the wire pin 1021 of the winding wire. At the same time, in conjunction with the design of the avoidance groove 112 on the side plate 11, the spacing between the pin portions 21 of each wire fixing pin 2 can always be kept consistent, and there is no risk of bending and deformation; therefore, the dimensional tolerance between the pin portions 21 is effectively guaranteed, which is conducive to improving the quality of the transformer 100. Furthermore, since the pin portion 21 is no longer connected to the wire pin 1021 of the winding wire, the cross-sectional area of the pin portion 21 is limited to a small size, which is conducive to increasing the cross-sectional area of the pin portion 21, thereby better preventing the pin portion 21 from having a local high temperature during actual operation.
[0051] From the above, it can be seen that, through the design of the transformer skeleton 101, the transformer skeleton 101 can utilize the space with maximum efficiency, and the corresponding welding process can be selected according to the application requirements of the actual product, which has the advantages of strong versatility and can be platformized according to the actual application, thereby more effectively reducing the process difficulty and processing cost of the product, and enabling the transformer 100 provided with the transformer skeleton 101 to meet higher voltage resistance requirements and product quality requirements. In addition, the transformer skeleton 101 provided by the utility model realizes a high-density design, effectively utilizes space and reduces the height to the greatest extent. Because the transformer is the device with the largest and highest space on the entire circuit board under normal circumstances, the miniaturization of the transformer has a great impact on the size of the terminal product, and the transformer skeleton 101 provided by the utility model is conducive to the miniaturization design of the transformer, so that the transformer can be miniaturized to the greatest extent.
[0052] Power module embodiment
[0053] The power module includes a control circuit board and the transformer described in the above transformer embodiment. The pin portion of the transformer is electrically connected to the control circuit board. The power module is provided with the above transformer to have better reliability, stronger voltage resistance, higher quality and lower production cost.
[0054] Electrical equipment embodiment
[0055] The power-consuming device includes the power module described in the above power module embodiment; wherein the power-consuming device may be aerospace equipment, medical equipment, vehicle-mounted equipment, household appliances and other equipment that uses power. By setting the above power module, the power-consuming device can have better voltage resistance, better working reliability, higher product quality and lower production cost.
[0056] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A transformer skeleton, comprising a body, wherein the body has two side plates and a winding drum, wherein one side plate is connected to one end of the winding drum, and the body has a magnetic core insertion hole, wherein the magnetic core insertion hole penetrates the winding drum and the two side plates in the axial direction of the winding drum, and wherein: The side plate is provided with a wire fixing pin, and the wire fixing pin has a pin portion and a wire fixing portion. In the height direction of the main body, the pin portion extends out of the side plate, and the height direction is perpendicular to the axial direction. The wire fixing portion is located on the side of the side plate facing away from the winding drum, and the wire fixing portion has a wire clamping groove, and the wire fixing portion can be plastically deformed.
2. The transformer skeleton according to claim 1, characterized in that: The side plate is provided with an escape groove matching the wire clamping groove, and the escape groove penetrates the side plate in the axial direction.
3. The transformer skeleton according to claim 2, characterized in that: In the axial direction, the cross-section of the wire fixing portion is U-shaped, the wire fixing portion has a first side wall connected to the pin portion, and the free end of the second side wall of the wire fixing portion can be bent toward the first side wall for plastic deformation.
4. The transformer skeleton according to claim 3, characterized in that: The wire fixing pin further comprises a bending portion, wherein the bending portion is connected between the pin portion and the wire fixing portion, and the bending portion causes the pin portion and the wire fixing portion to be staggered in the axial direction; The pin portion and the bent portion are connected to the side plate.
5. The transformer skeleton according to claim 4, characterized in that: The side plate is provided with a slot, and the pin portion and the bent portion are interference-fitted with the slot; or The wire fixing pins are connected to the side plates through an insert molding process.
6. The transformer skeleton according to any one of claims 1 to 5, characterized in that: A creepage wall is formed on each of the side plates, and the creepage wall extends along a first direction, and the first direction is perpendicular to the axial direction and the height direction respectively; In the axial direction, the creepage wall extends from the side plate back toward the winding drum; In the height direction, the creepage wall is located between the fixed wire pin and the winding drum.
7. The transformer skeleton according to claim 6, characterized in that: The number of the wire fixing pins on each of the side panels is more than two, and the more than two wire fixing pins are distributed along the first direction; The numbers of the wire fixing pins on the two side panels are equal or different.
8. Transformer, including: Winding; Two magnetic cores, the two magnetic cores are symmetrically arranged; Features: The transformer also includes a transformer frame as described in any one of claims 1 to 7, the winding is wound on the winding drum, the wire pins of the winding are located in the wire clamping groove of a corresponding one of the wire fixing pins, the wire fixing part is fixedly connected to the wire pin by plastic deformation, the magnetic core is installed on the body, and the middle column of the magnetic core is inserted in the magnetic core socket.
9. A power module, including a control circuit board, characterized in that: Also included is the transformer as claimed in claim 8, wherein the pin portion is electrically connected to the control circuit board.
10. Electrical equipment, characterized in that: Comprising the power module as claimed in claim 9.