A PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics

Abstract

The present invention relates to the field of inductor technology, and proposes a PQ-like inductor suitable for automotive electronics with high heat dissipation and high space utilization, including a No. 1 outer frame magnetic core and a No. 2 outer frame magnetic core, a middle column magnetic core is arranged on the inner side of the No. 2 outer frame magnetic core and the No. 1 outer frame magnetic core, a conductor coil is wound around the outer surface of the middle column magnetic core, a connection structure is arranged between the No. 1 outer frame magnetic core and the No. 2 outer frame magnetic core, and a positioning structure is arranged on the inner surface of the No. 2 outer frame magnetic core and the No. 1 outer frame magnetic core. Through the above technical scheme, the EQ-shaped magnetic core generally used in current automotive electronics is solved. Although the traditional EQ shape has a good space utilization rate, the coil is wrapped in the magnetic core, which makes it difficult for the heat of the coil to dissipate; the traditional EQ-type magnetic core is difficult to press, and the molding density is relatively low, which leads to relatively poor electrical characteristics of the inductor; in addition, the middle column of the traditional EQ-type magnetic core is generally a cylinder, and there will be a certain space waste problem during assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of inductors, and in particular to a PQ-like inductor suitable for automotive electronics with high heat dissipation and high space utilization. Background Art

[0002] PQ inductor is a high current inductor wound with flat wire. It usually has the advantages of high current resistance and can withstand the highest current of A; high stability, using thick wire and flat wire to ensure the stable performance of the inductor; In general, PQ inductor is wound with flat wire, has high stability and high current resistance, and pays attention to the use of high-quality copper wire to ensure its performance and durability;

[0003] After searching, an inductor structure with the authorization announcement number CN111292940B is found. The solution provided by the present invention can maximize the inductor isolation and reduce the electromagnetic coupling between the VCO resonators.

[0004] The inductors in automotive electronics need to be potted in thermally conductive adhesive and then cooled by liquid heat dissipation. Therefore, when designing the inductor, the current density of the coil will be very high, which causes the main heating point of the entire inductor to be in the coil rather than the magnetic core. At the same time, automotive electronics has high requirements for the volume of the inductor.

[0005] At present, EQ-shaped magnetic cores are generally used in automotive electronics. Although the traditional EQ shape has good space utilization, the coil is wrapped in the magnetic core, which makes it difficult to dissipate the heat of the coil; the traditional EQ-type magnetic core is difficult to press and has a relatively low molding density, which leads to relatively poor electrical characteristics of the inductor; in addition, the center column of the traditional EQ-type magnetic core is generally a cylinder, and there will be a certain amount of space waste during assembly. For this reason, we have proposed a PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics. Summary of the invention

[0006] The present invention proposes a PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics, which solves the problem mentioned in the background technology that EQ-shaped magnetic cores are generally used in current automotive electronics. Although the traditional EQ shape has good space utilization, the coil is wrapped in the magnetic core, which makes it difficult to dissipate the heat of the coil; the traditional EQ-type magnetic core is difficult to press and has a relatively low molding density, which leads to relatively poor electrical characteristics of the inductor; in addition, the middle column of the traditional EQ-type magnetic core is generally a cylinder, and there will be a certain amount of space waste during assembly.

[0007] The technical solution of the present invention is as follows:

[0008] A PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics comprises a first outer frame magnetic core and a second outer frame magnetic core, wherein a middle column magnetic core is arranged inside the second outer frame magnetic core and the first outer frame magnetic core, a conductor coil is wound around the outer surface of the middle column magnetic core, a connection structure is arranged between the first outer frame magnetic core and the second outer frame magnetic core, a positioning structure is arranged on the inner side surfaces of the second outer frame magnetic core and the first outer frame magnetic core, positioning openings are arranged on the inner outer surfaces of the first outer frame magnetic core and the second outer frame magnetic core, recessed portions are arranged on the outer surfaces of both sides of the first outer frame magnetic core and the second outer frame magnetic core, and arc portions are arranged on the outer surfaces of the first outer frame magnetic core and the second outer frame magnetic core.

[0009] As a further technical solution of the present invention, the connection structure includes a connecting groove opened on the outer surface of the second outer frame magnetic core, the upper end of the No. 1 outer frame magnetic core is fixedly connected with a fixing plate, the outer surface of the fixing plate is fixedly connected with a convex corner, the inner side of the No. 2 outer frame magnetic core is fixedly connected with a heat conducting plate near the opening of one end of the connecting groove, the outer surface of one side of the heat conducting plate is connected with a pushing spring, one end of the pushing spring is connected with a pushing plate, and the outer surface of the pushing plate is provided with an anti-slip coating.

[0010] As a further technical solution of the present invention, the positioning structure includes limit grooves respectively opened on the inner outer surfaces of the second outer frame magnetic core and the first outer frame magnetic core, a limit plate is movably arranged inside the limit groove, an inner groove is opened on the outer surface of one end of the limit plate close to the corresponding limit groove, and a positioning spring is arranged inside the inner groove.

[0011] As a further technical solution of the present invention, the middle column magnetic core is a cube with R corners on the outside, the recessed portion is a trapezoidal notch structure, and the second outer frame magnetic core and the first outer frame magnetic core are symmetrical "U"-shaped magnetic core structures.

[0012] As a further technical solution of the present invention, the positioning opening matches the upper and lower ends of the middle column magnetic core, the conductor coil is a spiral coil with a spacing, and the inner hole of the conductor coil matches the middle column magnetic core.

[0013] As a further technical solution of the present invention, the connecting groove is a "T"-shaped groove structure, and the three ends of the "T" shape are connected to the outside, the fixing plate matches the middle part of the "T"-shaped opening, and the outer surface of the convex corner is a chamfered structure.

[0014] As a further technical solution of the present invention, the connection between the No. 1 outer frame magnetic core and the No. 2 outer frame magnetic core is achieved by embedding the fixing plate into the connecting groove, the heat conducting plate is fixedly connected to the inner outer surface of the No. 2 outer frame magnetic core corresponding to the "T"-shaped inner opening, the pushing spring is arranged as a transverse structure, the number of the pushing springs is several groups and is distributed in an "I"-shaped array, the elastic ends of the pushing springs at both ends are fixedly connected to the heat conducting plate and the pushing plate respectively, and the pushing spring is a spring that expands when heated.

[0015] As a further technical solution of the present invention, the anti-slip coating is made of rubber material. When the second outer frame magnetic core is connected to the first outer frame magnetic core, the outer surface of the push plate is in contact with the outer surface of one side of the fixed plate. The connection structure is used to achieve the connection and engagement between the second outer frame magnetic core and the first outer frame magnetic core and prevent separation.

[0016] As a further technical solution of the present invention, the limit groove is a rectangular groove structure, the positioning structure is used to realize the positioning of the conductor coil by the No. 2 outer frame magnetic core and the No. 1 outer frame magnetic core, a group of the limit grooves corresponds to several groups of positioning springs, and the end of the limit plate away from the limit groove is an arc structure.

[0017] As a further technical solution of the present invention, the limit plate moves up and down along the opening direction of the limit groove, and the conductor coil is positioned by pushing the limit plate through the positioning spring. The number of positioning structures corresponding to a group of the No. 1 outer frame core or the No. 2 outer frame core is two groups and they are symmetrically distributed.

[0018] The working principle and beneficial effects of the present invention are:

[0019] Through the functions of the No. 1 outer frame core, the No. 2 outer frame core, the middle column core and the conductor coil, the contact area between the conductor coil and the thermal conductive adhesive can be greatly increased by opening the recessed portion, thereby enhancing the heat dissipation effect of the inductor conductor coil. At the same time, the cube structure of the middle column core with R angle improves space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 A schematic diagram of a group of embodiments of the present invention;

[0022] Figure 2 It is a structural schematic diagram of another group of embodiments of the present invention;

[0023] Figure 3 For the present invention Figure 1 Exploded diagram of

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the local structure;

[0025] Figure 5 For the present invention Figure 2 Exploded diagram of

[0026] Figure 6 It is a partial structural schematic diagram of the connection structure when the second outer frame magnetic core and the first outer frame magnetic core are connected;

[0027] Figure 7 It is a schematic diagram of the local structure of the positioning structure of the present invention.

[0028] In the figure: 1. outer frame core No. 1; 2. outer frame core No. 2; 3. middle column core; 4. conductor coil; 5. connection structure; 51. connecting groove; 52. fixing plate; 53. convex corner; 54. heat conducting plate; 55. push spring; 56. push plate; 57. anti-slip coating; 6. positioning structure; 61. limit groove; 62. positioning spring; 63. limit plate; 64. inner groove; 7. positioning opening; 8. recessed portion; 9. arc-shaped portion. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1~Figure 4 As shown, the present embodiment proposes a PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics, including a first outer frame core 1 and a second outer frame core 2, a middle column core 3 is arranged on the inner sides of the second outer frame core 2 and the first outer frame core 1, a conductor coil 4 is wound on the outer surface of the middle column core 3, a connection structure 5 is arranged between the first outer frame core 1 and the second outer frame core 2, a positioning structure 6 is arranged on the inner surfaces of the second outer frame core 2 and the first outer frame core 1, positioning openings 7 are provided on the inner outer surfaces of the first outer frame core 1 and the second outer frame core 2, recessed portions 8 are provided on the outer surfaces of both sides of the first outer frame core 1 and the second outer frame core 2, and arc portions 9 are provided on the outer surfaces of the first outer frame core 1 and the second outer frame core 2.

[0032] The middle column magnetic core 3 is a cube with an R angle on the outside, the recessed portion 8 is a trapezoidal notch-shaped structure, the second outer frame magnetic core 2 and the first outer frame magnetic core 1 are symmetrical "U"-shaped magnetic core structures; the positioning opening 7 matches the upper and lower ends of the middle column magnetic core 3, the conductor coil 4 is a spiral coil with a spacing, and the inner hole of the conductor coil 4 matches the middle column magnetic core 3.

[0033] In this embodiment, the recessed portion 8 can greatly increase the contact area between the conductor coil 4 and the thermally conductive adhesive, thereby enhancing the heat dissipation effect of the inductor conductor coil 4. At the same time, the cube structure with R angle of the middle column magnetic core 3 improves space utilization.

[0034] During installation, the user puts the No. 1 outer frame core 1, and then puts the lower end of the middle column core 3 corresponding to the positioning opening 7 on the inner outer surface of the No. 1 outer frame core 1, and then sleeves the conductor coil 4 on the outer surface of the middle column core 3, and then vertically puts the inner side of the No. 2 outer frame core 2 corresponding to the top of the No. 1 outer frame core 1 and the middle column core 3 downward to complete the splicing; compared with the existing inductor, the final formed inductor adopts the opening shape of the recessed portion 8, abandoning the original structure in which the core part completely wraps the copper wire, and through the two recessed portion 8 notches opened on the surface of the No. 2 outer frame core 2 and the No. 1 outer frame core 1, the contact area between the conductor coil 4 and the thermal conductive adhesive in the formed inductor can be greatly increased, thereby greatly promoting the heat dissipation effect, and the structure of the middle column core 3 with an R angle effectively improves the space utilization rate;

[0035] At the same time, compared with the traditional one-piece molding method, the segmented combination connection method is also more convenient for matching different materials. In the embodiment of the present invention, the preferred materials of the second outer frame core 2 and the first outer frame core 1 are iron silicon magnetic powder cores, and the preferred material of the middle column core 3 is soft ferrite. Iron silicon has the characteristics of higher loss, higher Bs and lower cost; soft ferrite has the characteristics of lower loss and lower Bs. Through the control of materials, the second outer frame core 2 and the first outer frame core 1 are used as outer frames, and because of the higher Bs, the defect of insufficient Bs of the middle column ferrite can be well compensated. At the same time, the contact area between the outer frame and the thermal conductive adhesive is large, and the heat generated by the higher loss iron silicon material can also be well dissipated; while the heat of the middle column core 3 is relatively difficult to dissipate, the lower loss of the soft ferrite can reduce the generation of heat, and the heat dissipation performance is excellent.

[0036] Example 2

[0037] like Figure 5~Figure 6As shown, on the basis of Example 1, a connection structure 5 is further proposed, which includes a connecting groove 51 opened on the outer surface of the second outer frame magnetic core 2, a fixing plate 52 is fixedly connected to the upper end of the first outer frame magnetic core 1, and a convex corner 53 is fixedly connected to the outer surface of the fixing plate 52, and a heat conducting plate 54 is fixedly connected to the inner side of the second outer frame magnetic core 2 near the opening of one end of the connecting groove 51, a push spring 55 is connected to the outer surface of one side of the heat conducting plate 54, and one end of the push spring 55 is connected to a push plate 56, and the outer surface of the push plate 56 is provided with an anti-slip coating 57.

[0038] The connecting groove 51 is a "T"-shaped groove structure, and the three ends of the "T" shape are connected to the outside, the fixing plate 52 matches the middle of the "T"-shaped opening, and the outer surface of the convex corner 53 is a chamfered structure; the connection between the first outer frame magnetic core 1 and the second outer frame magnetic core 2 is realized by embedding the fixing plate 52 into the connecting groove 51, and the heat conducting plate 54 is fixedly connected to the inner outer surface of the second outer frame magnetic core 2 corresponding to the inner opening of the "T" shape, and the push spring 55 is a horizontal structure. The number of 55 is several groups and they are distributed in an "I"-shaped array. The elastic ends of the push spring 55 at both ends are fixedly connected to the heat conducting plate 54 and the push plate 56 respectively. The push spring 55 is a spring that expands when heated. The anti-slip coating 57 is made of rubber material. When the second outer frame core 2 is connected to the first outer frame core 1, the outer surface of the push plate 56 is in contact with the outer surface of one side of the fixed plate 52. The connecting structure 5 is used to achieve the connection and engagement between the second outer frame core 2 and the first outer frame core 1 and prevent separation.

[0039] In this embodiment, the connection between the second outer frame magnetic core 2 and the first outer frame magnetic core 1 can be easily completed. At the same time, during the use of the inductor, the stability of the connection between the second outer frame magnetic core 2 and the first outer frame magnetic core 1 can be effectively enhanced, thereby preventing the possible falling off and separation between the second outer frame magnetic core 2 and the first outer frame magnetic core 1.

[0040] When the connection between the second outer frame core 2 and the first outer frame core 1 is completed, first, one end of the fixing plate 52 on the first outer frame core 1 with the convex corner 53 will enter the lower end of the connecting groove 51, until the convex corner 53 is extended outward from one side of the upper end of the connecting groove 51 under the action of the toughness of the fixing plate 52 itself to complete the limit. During use, the heat generated by the inductor itself after molding is transferred to the heat conducting plate 54, and the heat is transferred to the pushing spring 55 through the heat conducting plate 54. At the same time, the heat is transferred from the heat conducting plate 54 and the second outer frame core 2 to the pushing spring 55. The pushing spring 55 expands due to the heat and pushes the pushing plate 56, so that the pushing plate 56 pushes the anti-slip coating 57 and the fixing plate 52 tightly, so that the connection between the second outer frame core 2 and the first outer frame core 1 can be kept stable during use, and the possible falling off of the second outer frame core 2 and the first outer frame core 1 during the operation of the car can be effectively prevented.

[0041] Example 3

[0042] like Figure 7 As shown, on the basis of Example 2, a positioning structure 6 is proposed, which includes limiting grooves 61 respectively opened on the inner outer surfaces of the second outer frame core 2 and the first outer frame core 1, and a limiting plate 63 is movably arranged inside the limiting groove 61. An inner groove 64 is opened on the outer surface of one end of the limiting plate 63 close to the corresponding limiting groove 61, and a positioning spring 62 is arranged inside the inner groove 64.

[0043] The limiting groove 61 is a rectangular groove structure, and the positioning structure 6 is used to realize the positioning of the conductor coil 4 by the second outer frame core 2 and the first outer frame core 1. A group of limiting grooves 61 corresponds to several groups of positioning springs 62, and the end of the limiting plate 63 away from the limiting groove 61 is an arc structure; the limiting plate 63 moves up and down along the opening direction of the limiting groove 61, and the positioning spring 62 pushes the limiting plate 63 to realize the positioning of the conductor coil 4. The number of positioning structures 6 corresponding to a group of the first outer frame core 1 or the second outer frame core 2 is two groups and they are symmetrically distributed.

[0044] In this embodiment, when the middle column magnetic core 3 and the conductor coil 4 are installed between the second outer frame magnetic core 2 and the first outer frame magnetic core 1, the position and posture of the conductor coil 4 can be effectively maintained stable, so that the inductor molding effect can be better, and then the overall heat dissipation effect of the inductor can be better.

[0045] When installing the conductor coil 4, through the fitting connection between the second outer frame core 2 and the first outer frame core 1, the limit plate 63 can keep the position of the conductor coil 4 at a reasonable position on the outer surface of the middle column core 3 under the pushing action of the positioning spring 62, and no large deviation or skew will occur, so the conductor coil 4 can be easily positioned at the corresponding position on the first outer frame core 1.

[0046] In summary, during installation, the user now puts the No. 1 outer frame core 1, and then puts the lower end of the middle column core 3 corresponding to the positioning opening 7 on the inner outer surface of the No. 1 outer frame core 1, and then sleeves the conductor coil 4 on the outer surface of the middle column core 3, and then vertically puts the inner side of the No. 2 outer frame core 2 corresponding to the top of the No. 1 outer frame core 1 and the middle column core 3 downward to complete the splicing; compared with the existing inductor, the final formed inductor adopts the opening shape of the recessed portion 8, abandoning the original structure in which the core part completely wraps the copper wire, and through the two recessed portion 8 notches opened on the surface of the No. 2 outer frame core 2 and the No. 1 outer frame core 1, the contact area between the conductor coil 4 and the thermal conductive adhesive in the formed inductor can be greatly increased, thereby greatly promoting the heat dissipation effect, and the structure of the middle column core 3 with an R angle effectively improves the space utilization rate;

[0047] At the same time, compared with the traditional one-piece molding method, the segmented combination connection method is also more convenient for matching different materials. In the embodiment of the present invention, the preferred materials of the second outer frame core 2 and the first outer frame core 1 are iron silicon magnetic powder cores, and the preferred material of the middle column core 3 is soft ferrite. Iron silicon has the characteristics of higher loss, higher Bs and lower cost; soft ferrite has the characteristics of lower loss and lower Bs. Through the control of materials, the second outer frame core 2 and the first outer frame core 1 are used as outer frames, and because of the higher Bs, the defect of insufficient Bs of the middle column ferrite can be well compensated. At the same time, the contact area between the outer frame and the thermal conductive adhesive is large, and the heat generated by the higher loss iron silicon material can also be well dissipated; while the heat of the middle column core 3 is relatively difficult to dissipate, the lower loss of the soft ferrite can reduce the generation of heat, and the heat dissipation performance is excellent.

[0048] When the connection between the second outer frame core 2 and the first outer frame core 1 is completed, first, one end of the fixing plate 52 on the first outer frame core 1 with the convex corner 53 will enter the lower end of the connecting groove 51, until the convex corner 53 is extended outward from one side of the upper end of the connecting groove 51 under the action of the toughness of the fixing plate 52 itself to complete the limit. During use, the heat generated by the inductor itself after molding is transferred to the heat conducting plate 54, and the heat is transferred to the pushing spring 55 through the heat conducting plate 54. At the same time, the heat is transferred from the heat conducting plate 54 and the second outer frame core 2 to the pushing spring 55. The pushing spring 55 expands due to the heat and pushes the pushing plate 56, so that the pushing plate 56 pushes the anti-slip coating 57 and the fixing plate 52 tightly, so that the connection between the second outer frame core 2 and the first outer frame core 1 can be kept stable during use, and the possible falling off of the second outer frame core 2 and the first outer frame core 1 during the operation of the car can be effectively prevented.

[0049] When installing the conductor coil 4, through the fitting connection between the second outer frame core 2 and the first outer frame core 1, the limit plate 63 can keep the position of the conductor coil 4 at a reasonable position on the outer surface of the middle column core 3 under the pushing action of the positioning spring 62, and no large deviation or skew will occur, so the conductor coil 4 can be easily positioned at the corresponding position on the first outer frame core 1.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics, characterized in that: The invention comprises a first outer frame magnetic core (1) and a second outer frame magnetic core (2), wherein a middle column magnetic core (3) is arranged on the inner sides of the second outer frame magnetic core (2) and the first outer frame magnetic core (1), and a conductor coil (4) is wound around the outer surface of the middle column magnetic core (3); a connection structure (5) is arranged between the first outer frame magnetic core (1) and the second outer frame magnetic core (2); positioning structures (6) are arranged on the inner surfaces of the second outer frame magnetic core (2) and the first outer frame magnetic core (1); positioning openings (7) are arranged on the inner outer surfaces of the first outer frame magnetic core (1) and the second outer frame magnetic core (2); recessed portions (8) are arranged on the outer surfaces of both sides of the first outer frame magnetic core (1) and the second outer frame magnetic core (2); and arc portions (9) are arranged on the outer surfaces of the first outer frame magnetic core (1) and the second outer frame magnetic core (2); The connection structure (5) comprises a connecting groove (51) formed on the outer surface of the second outer frame magnetic core (2); a fixing plate (52) is fixedly connected to the upper end of the first outer frame magnetic core (1); a convex corner (53) is fixedly connected to the outer surface of the fixing plate (52); a heat conducting plate (54) is fixedly connected to the inner side of the second outer frame magnetic core (2) near the opening of one end of the connecting groove (51); a push spring (55) is connected to the outer surface of one side of the heat conducting plate (54); one end of the push spring (55) is connected to the push plate (56); and an anti-slip coating (57) is provided on the outer surface of the push plate (56); The positioning opening (7) matches the upper and lower ends of the middle column magnetic core (3), and the positioning structure (6) is used to realize the positioning of the conductor coil (4) by the second outer frame magnetic core (2) and the first outer frame magnetic core (1); The connecting groove (51) is a "T"-shaped groove structure, and the three ends of the "T" shape are all connected to the outside, the fixing plate (52) matches the middle part of the "T"-shaped opening, and the outer surface of the convex corner (53) is a chamfered structure; The fixing plate (52) is embedded in the connecting groove (51) to realize the connection between the first outer frame magnetic core (1) and the second outer frame magnetic core (2); the heat conducting plate (54) is fixedly connected to the inner outer surface of the second outer frame magnetic core (2) corresponding to the "T"-shaped inner opening; the push spring (55) is arranged in a transverse structure; the push springs (55) are arranged in a plurality of groups and are arranged in a "T"-shaped array; the elastic ends at both ends of the push spring (55) are fixedly connected to the heat conducting plate (54) and the push plate (56) respectively; and the push spring (55) is a spring that expands when heated.

2. The PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics according to claim 1, characterized in that: The positioning structure (6) comprises limiting grooves (61) respectively formed on the inner outer surfaces of the second outer frame magnetic core (2) and the first outer frame magnetic core (1); a limiting plate (63) is movably arranged inside the limiting groove (61); an inner groove (64) is formed on the outer surface of one end of the limiting plate (63) close to the corresponding limiting groove (61); and a positioning spring (62) is arranged inside the inner groove (64).

3. The PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics according to claim 1, characterized in that: The middle column magnetic core (3) is a cube with an R angle on the outside, the recessed portion (8) is a trapezoidal notch structure, and the second outer frame magnetic core (2) and the first outer frame magnetic core (1) are symmetrical "U"-shaped magnetic core structures.

4. The PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics according to claim 3, characterized in that: The conductor coil (4) is a spiral coil with a spacing, and the inner hole of the conductor coil (4) matches the middle column magnetic core (3).

5. The PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics according to claim 1, characterized in that: The anti-slip coating (57) is made of rubber material. When the second outer frame magnetic core (2) is connected to the first outer frame magnetic core (1), the outer surface of the push plate (56) is in contact with the outer surface of one side of the fixed plate (52). The connection structure (5) is used to achieve connection and engagement between the second outer frame magnetic core (2) and the first outer frame magnetic core (1) and prevent separation.

6. The PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics according to claim 2, characterized in that: The limiting groove (61) is a rectangular parallelepiped groove structure, a group of the limiting grooves (61) corresponds to a plurality of groups of positioning springs (62), and one end of the limiting plate (63) away from the limiting groove (61) is an arc-shaped structure.

7. The PQ-like inductor with high heat dissipation and high space utilization suitable for automotive electronics according to claim 6, characterized in that: The limiting plate (63) moves up and down along the opening direction of the limiting groove (61), and the limiting plate (63) is pushed by the positioning spring (62) to achieve positioning of the conductor coil (4). The number of positioning structures (6) corresponding to a group of the first outer frame magnetic core (1) or the second outer frame magnetic core (2) is two and they are symmetrically distributed.

Images