Ceramic metallization high-frequency inductor

Abstract

The utility model relates to the technical field of circuit electronic components, and discloses a ceramic metallization high-frequency inductor which comprises a ceramic magnetic core, a metal sleeve is fixedly connected to the outer wall of the ceramic magnetic core, a coil is arranged on the outer side of the metal sleeve, an insulating sleeve is fixedly connected to the outer side of the coil, and the insulating sleeve is fixedly connected to the outer wall of the ceramic magnetic core. Preformed holes are formed in the left side and the right side of the bottom of the metal sleeve, a plurality of heat dissipation plates are fixedly connected to the top of the metal sleeve, a plurality of first clamping grooves are formed in the left side and the right side of the outer wall of the metal sleeve, and a protection mechanism is arranged on the outer side of the metal sleeve and used for protecting the coil. According to the inductor, the metal sleeve is fixed to the outer wall of the ceramic magnetic core, current can generate heat when passing through the coil, the heat dissipation plate conducts the heat out of the interior of the inductor, the heat dissipation area is further increased through the heat dissipation holes, and therefore the heat can be dissipated to the surrounding environment more rapidly; therefore, the temperature of the inductor is effectively reduced while the size of the device is not changed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit electronic components, in particular to a ceramic metallized high-frequency inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. It is based on the phenomenon of electromagnetic induction. When current passes through an inductor, a magnetic field is generated around it. The energy of this magnetic field can be converted into electrical energy in the circuit when the current changes.

[0003] Ceramics themselves are insulators, but in many electronic application scenarios, inductors need to have a good conductive path. Through metallization treatment, a layer of metal film is formed on the surface of ceramics. The metal has good conductivity and can provide a low-resistance conductive path for the inductor, thereby reducing the DC resistance of the inductor.

[0004] Because ceramic metallized high-frequency inductors are internally wound with coils, heat is generated when current passes through the coils. High levels of heat can affect the function and service life of the inductor. Existing techniques involve installing a cooling fan near the inductor. The fan's rotation accelerates air flow, thereby cooling the inductor's surface. However, the addition of the cooling fan increases the footprint and, due to installation space limitations, reduces the device's practicality. Utility Model Content

[0005] In order to overcome the above shortcomings, the present invention provides a ceramic metallized high-frequency inductor, aiming to improve the problem in the prior art that the addition of a cooling fan increases the floor space, is limited by the installation space, and reduces the practicality of the device.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a ceramic metallized high-frequency inductor, comprising a ceramic core, a metal sleeve fixedly connected to the outer wall of the ceramic core, a coil provided on the outer side of the metal sleeve, an insulating sleeve fixedly connected to the outer side of the coil, reserved holes provided on the left and right sides of the bottom of the metal sleeve, a plurality of heat dissipation plates fixedly connected to the top of the metal sleeve, a plurality of slots provided on the left and right sides of the outer wall of the metal sleeve, and a protective mechanism provided on the outer side of the metal sleeve, the protective mechanism being used to protect the coil.

[0007] As a further description of the above technical solution:

[0008] The protective mechanism includes a bottom cover 1, which is engaged with the left side of the metal sleeve via a plurality of first slots. The right side of the metal sleeve is engaged with a second bottom cover. The front and rear sides of the right end of the first bottom cover are fixedly connected to a clamping block. The front and rear sides of the left end of the second bottom cover are provided with second slots. The inner walls of the plurality of second slots are slidably connected to a limit block. The two limit blocks are fixedly connected to a plurality of springs on the sides facing away from each other. The other ends of the plurality of springs are fixedly connected to the second bottom cover. The tops of the first and second bottom covers are fixedly connected to a protective shell. The tops of the first and second bottom covers are threadedly connected to two threaded rods. The bottom ends of the plurality of threaded rods are rotatably connected to a foot seat.

[0009] As a further description of the above technical solution:

[0010] The plurality of heat dissipation plates are arranged at equal intervals on the top of the metal sleeve, and a plurality of heat dissipation holes are opened on the outer sides of the heat dissipation plates.

[0011] As a further description of the above technical solution:

[0012] An information plate is provided on the outside of the protective shell. Screws are threadedly connected to the outer wall of the information plate on all sides. The information plate is threadedly connected to the protective shell through the screws.

[0013] As a further description of the above technical solution:

[0014] Both ends of the coil pass through the reserved hole, and both ends of the coil are fixedly connected with contact pins.

[0015] As a further description of the above technical solution:

[0016] The top of the threaded rod is fixedly connected with a rotating ring, and the outer wall of the rotating ring is provided with anti-slip grooves all around.

[0017] As a further description of the above technical solution:

[0018] A plurality of positioning pins are fixedly connected to the right side of the left protective shell, and a plurality of positioning holes are opened on the left side of the right protective shell, and the plurality of positioning pins are respectively engaged with the corresponding positioning holes.

[0019] As a further description of the above technical solution:

[0020] The inner walls of the bottom cover 1 and the bottom cover 2 are both fixedly connected with a plurality of insertion rods, and the plurality of insertion rods are respectively engaged with the corresponding first card slots.

[0021] The utility model has the following beneficial effects:

[0022] 1. In this invention, when AC current passes through the coil, the ceramic core enhances the magnetic field and improves inductance. Contacts at both ends of the coil connect to an external circuit, and a metal sleeve is fixed to the outer wall of the ceramic core to provide shielding. Current passing through the coil generates heat, which the heat sink conducts from the interior of the inductor. Multiple heat dissipation holes further increase the heat dissipation area, allowing heat to dissipate more quickly into the surrounding environment. This effectively reduces the inductor's temperature without changing the size of the device, ensuring that its performance is not adversely affected by high temperatures.

[0023] 2. In the present invention, by inserting the card block into the second card slot, the limit block is squeezed to compress the spring. The elastic force of the spring will react on the limit block, thereby tightly pressing against the card block, thereby increasing the stability of the connection. By rotating the threaded rod to move the threaded rod up and down, the foot will adjust its height as the threaded rod moves. According to the specific conditions of the installation surface, the height of each foot is adjusted separately, so that the protective mechanism and the entire inductor can be stably placed on an uneven installation surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of the ceramic metallized high-frequency inductor proposed in the present invention;

[0025] Figure 2 This is a schematic structural diagram of the ceramic metallized high-frequency inductor proposed in the present utility model;

[0026] Figure 3 This is a partial structural cross-sectional view of the ceramic metallized high-frequency inductor proposed in the present utility model;

[0027] Figure 4 This is a schematic diagram of the partial structure of the ceramic metallized high-frequency inductor proposed in the present utility model;

[0028] Figure 5 This is a schematic diagram of the protection mechanism of the ceramic metallized high-frequency inductor proposed in the present utility model;

[0029] Figure 6 This is a cross-sectional view of the bottom cover 1 of the ceramic metallized high-frequency inductor proposed in the present invention;

[0030] Legend:

[0031] 1. Ceramic core; 2. Protective mechanism; 201. Bottom cover 1; 202. Bottom cover 2; 203. Block; 204. Slot 2; 205. Limit block; 206. Spring; 207. Protective shell; 208. Threaded rod; 209. Foot; 3. Metal sleeve; 4. Coil; 5. Insulating sleeve; 6. Reserved hole; 7. Heat sink; 8. Heat dissipation hole; 9. Slot 1; 10. Information plate; 11. Screw; 12. Contact pin; 13. Rotating ring; 14. Anti-slip groove; 15. Positioning pin; 16. Positioning hole; 17. Insert rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 、 Figure 2 and Figure 3 The utility model provides an embodiment: a ceramic metallized high-frequency inductor, including a ceramic core 1, which can enhance the magnetic field and improve the inductance performance. The outer wall of the ceramic core 1 is fixedly connected to a metal sleeve 3, which is fixedly connected to the outer wall of the ceramic core 1. On the one hand, it plays a shielding role, reducing the influence of external electromagnetic interference on the internal magnetic field of the inductor, and at the same time preventing the inductor's own magnetic field from interfering with the external circuit. A coil 4 is provided on the outside of the metal sleeve 3. The coil 4 is a key component for generating a magnetic field. When an alternating current passes through the coil 4, an alternating magnetic field is generated. An insulating sleeve 5 is fixedly connected to the outside of the coil 4. The insulating sleeve 5 is wrapped around the outside of the coil 4 and mainly plays an insulating role to prevent the coil 4 from short-circuiting with external components, ensuring that the inductor can work safely and stably. The left and right sides of the bottom of the sleeve 3 are provided with reserved holes 6, which are used to allow the two ends of the coil 4 to pass through and facilitate connection to the external circuit. The top of the metal sleeve 3 is fixedly connected with multiple heat sinks 7, which can conduct heat out. The left and right sides of the outer wall of the metal sleeve 3 are provided with multiple card slots 9. The outside of the metal sleeve 3 is provided with a protective mechanism 2, which is used to protect the coil 4; multiple heat sinks 7 are equidistantly arranged on the top of the metal sleeve 3, which can dissipate heat evenly. The outside of the heat sink 7 is provided with multiple heat dissipation holes 8, which increase the heat dissipation area and accelerate heat dissipation, thereby reducing the temperature of the inductor and ensuring that its performance is not affected by high temperature; both ends of the coil 4 pass through the reserved holes 6, and both ends of the coil 4 are fixedly connected with contact pins 12, which are used to connect to the external circuit;

[0034] Reference Figure 1 、 Figure 2 and Figure 3 The protective mechanism 2 includes a bottom cover 201, which is engaged with the left side of the metal sleeve 3 through multiple slots 9, and the right side of the metal sleeve 3 is engaged with the bottom cover 202. The engaging method can more conveniently install the protective mechanism 2 on the metal sleeve 3 to achieve preliminary wrapping protection for components such as the internal coil 4. The front and rear sides of the right end of the bottom cover 201 are fixedly connected with a clamping block 203, and the front and rear sides of the left end of the bottom cover 202 are provided with a clamping slot 204. The clamping block 203 cooperates with the clamping slot 204. When the bottom cover 1 201 and the bottom cover 2 202 are closed to the middle, the clamping block 203 can be accurately inserted into the clamping slot 204, further enhancing the tightness of the connection between the two bottom covers. The inner walls of the multiple clamping slots 204 are all slidably connected to the limiting blocks 205, and the two limiting blocks 205 are fixedly connected to the away side with multiple springs 206. The other ends of the multiple springs 206 are fixedly connected to the bottom cover 2 202 When the card block 203 is inserted into the card slot 204, it will squeeze the limit block 205, compressing the spring 206. The elastic force of the spring 206 will react on the limit block 205, thereby tightly pressing against the card block 203. The top of the bottom cover 1 201 and the bottom cover 202 are fixedly connected with a protective shell 207. The protective shell 207 shields and protects the internal components from above. The top of the bottom cover 1 201 and the bottom cover 202 are both threadedly connected with two threaded rods 208. The bottom ends of the multiple threaded rods 208 are rotatably connected with feet 209. The threaded rods 208 are rotated to adjust the height of the feet 209 to adapt to an uneven installation surface. The top of the threaded rod 208 is fixedly connected with a rotating ring 13. The threaded rod 208 can be quickly rotated by the rotating ring 13. The outer wall of the rotating ring 13 is surrounded by anti-skid grooves 14. The anti-skid grooves 14 increase the friction between the hand and the rotating ring 13 to prevent the hand from slipping when twisting the rotating ring 13.

[0035] Reference Figure 1 、 Figure 2 and Figure 3An information plate 10 is provided on the outside of the protective shell 207. The information plate 10 is used to display various information related to the ceramic metallized high-frequency inductor. The outer wall of the information plate 10 is threaded with screws 11 on all sides. The information plate 10 is threadedly connected to the protective shell 207 through the screws 11; a plurality of positioning pins 15 are fixedly connected to the right side of the left protective shell 207, and a plurality of positioning holes 16 are opened on the left side of the right protective shell 207. The plurality of positioning pins 15 are respectively engaged with the corresponding positioning holes 16. This engaging structure can realize the two protective shells 207 in Precise horizontal positioning ensures that they can be tightly and accurately spliced ​​together to form a complete top protective structure; the inner walls of the bottom cover 1 201 and the bottom cover 202 are fixedly connected with multiple insertion rods 17, and the multiple insertion rods 17 are respectively engaged with the corresponding card slots 1 9. When the bottom cover 1 201 and the bottom cover 202 are installed on the metal sleeve 3, the insertion rods 17 are inserted into the card slots 1 9. This engagement method further enhances the stability of the connection between the bottom cover and the metal sleeve 3 and prevents the bottom cover 1 201 and the bottom cover 202 from deviating in the vertical direction;

[0036] Working principle: Before using the device, the inductor is energized. When the AC current passes through the coil 4, the coil 4 will generate an alternating magnetic field around it, and the ceramic core 1 can enhance this magnetic field and improve the inductance performance. The contact pins 12 at both ends of the coil 4 are used to connect to the external circuit, so that the inductor can generate reactance to the AC signal after being connected to the circuit, thereby realizing functions such as filtering and energy storage. The metal sleeve 3 is fixed to the outer wall of the ceramic core 1 to play a shielding role and reduce the influence of external electromagnetic interference on the internal magnetic field of the inductor. The insulating sleeve 5 ensures that the coil 4 is insulated from external components. The current passing through the coil 4 generates heat, and the heat sink 7 conducts the heat from the inside of the inductor. The multiple heat dissipation holes 8 opened on the outside of the heat sink 7 further increase the heat dissipation area, so that the heat can be dissipated to the surrounding environment more quickly, thereby effectively reducing the temperature of the inductor without changing the size of the device, ensuring that its performance will not be adversely affected by high temperature.

[0037] And by closing the bottom cover 1 201 and the bottom cover 202 toward the middle, the block 203 can be accurately inserted into the second slot 204. When the block 203 is inserted into the second slot 204, it will squeeze the limit block 205, compressing the spring 206. The elastic force of the spring 206 will react on the limit block 205, thereby tightly pressing against the block 203, thereby increasing the stability of the connection. By rotating the threaded rod 208, the threaded rod 208 can be moved up and down under the action of the thread. Since the foot 209 is rotatably connected to the bottom end of the threaded rod 208, the foot 209 will adjust its height as the threaded rod 208 moves. According to the specific conditions of the installation surface, the height of each foot 209 is adjusted separately, so that the protective mechanism 2 and the entire inductor can be stably placed on an uneven installation surface.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, 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 ceramic metallized high-frequency inductor, comprising a ceramic magnetic core (1), characterized in that: The outer wall of the ceramic core (1) is fixedly connected to a metal sleeve (3), a coil (4) is arranged on the outer side of the metal sleeve (3), an insulating sleeve (5) is fixedly connected to the outer side of the coil (4), reserved holes (6) are provided on the left and right sides of the bottom of the metal sleeve (3), a plurality of heat dissipation plates (7) are fixedly connected to the top of the metal sleeve (3), a plurality of card slots (9) are provided on the left and right sides of the outer wall of the metal sleeve (3), and a protective mechanism (2) is provided on the outer side of the metal sleeve (3), and the protective mechanism (2) is used to protect the coil (4).

2. The ceramic metallized high-frequency inductor according to claim 1, wherein: The protective mechanism (2) includes a bottom cover (201), the bottom cover (201) is engaged with the left side of the metal sleeve (3) through a plurality of the card slots (9), the right side of the metal sleeve (3) is engaged with a bottom cover (202), the front and rear sides of the right end of the bottom cover (201) are fixedly connected with a card block (203), the front and rear sides of the left end of the bottom cover (202) are provided with a card slot (204), and the inner walls of the plurality of the card slots (204) are all slidable. A limit block (205) is connected, and a plurality of springs (206) are fixedly connected to the opposite sides of the two limit blocks (205), and the other ends of the plurality of springs (206) are fixedly connected to the second bottom cover (202). The tops of the first bottom cover (201) and the second bottom cover (202) are fixedly connected to a protective shell (207), and the tops of the first bottom cover (201) and the second bottom cover (202) are threadedly connected to two threaded rods (208). The bottom ends of the plurality of threaded rods (208) are rotatably connected to a foot seat (209).

3. The ceramic metallized high-frequency inductor according to claim 1, wherein: The plurality of heat dissipation plates (7) are arranged at equal intervals on the top of the metal sleeve (3), and a plurality of heat dissipation holes (8) are provided on the outer sides of the heat dissipation plates (7).

4. The ceramic metallized high-frequency inductor according to claim 2, wherein: An information plate (10) is provided on the outside of the protective shell (207), and screws (11) are threadedly connected to the outer wall of the information plate (10) on all sides. The information plate (10) is threadedly connected to the protective shell (207) via the screws (11).

5. The ceramic metallized high-frequency inductor according to claim 1, wherein: Both ends of the coil (4) pass through the reserved hole (6), and both ends of the coil (4) are fixedly connected with contact pins (12).

6. The ceramic metallized high-frequency inductor according to claim 2, wherein: The top of the threaded rod (208) is fixedly connected to a rotating ring (13), and anti-slip grooves (14) are provided around the outer wall of the rotating ring (13).

7. The ceramic metallized high-frequency inductor according to claim 2, wherein: The right side of the left protective shell (207) is fixedly connected with a plurality of positioning pins (15), and the left side of the right protective shell (207) is provided with a plurality of positioning holes (16), and the plurality of positioning pins (15) are respectively engaged with the corresponding positioning holes (16).

8. The ceramic metallized high-frequency inductor according to claim 2, wherein: The inner walls of the bottom cover 1 (201) and the bottom cover 2 (202) are both fixedly connected with a plurality of insertion rods (17), and the plurality of insertion rods (17) are respectively engaged with the corresponding card slot 1 (9).

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