CN220290635U

CN220290635U - Multilayer ceramic capacitor

Info

Publication number: CN220290635U
Application number: CN202321692479.0U
Authority: CN
Inventors: 李�浩; 何丽; 彭丽; 孙洋
Original assignee: Kunshan Mingliwei Electronics Co ltd
Current assignee: Kunshan Mingliwei Electronics Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-01-02
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a multilayer ceramic capacitor, which belongs to the technical field of capacitors and comprises a coating and ceramic mediums of the multilayer ceramic capacitor, wherein an inner electrode A and an inner electrode B are arranged in the coating, the two ends of the ceramic mediums are respectively and fixedly connected with the ceramic mediums, connecting wires are fixedly connected to the two ceramic mediums in a penetrating manner, the outer sides of the coating and the ceramic mediums are symmetrically sheathed with a protective cover in a sliding manner, a plurality of heat dissipation holes are formed in the outer side wall of the protective cover, L-shaped holes are formed in the side walls of the two protective covers, the two connecting wires are respectively and slidably connected to the inner parts of the L-shaped holes, clamping grooves are symmetrically formed in the top surface of one protective cover, and a plurality of heat exchange pipes are fixedly connected to the inner parts of the two protective covers. Compared with the prior art, the device can effectively radiate the heat of the multilayer ceramic capacitor, and is convenient to install and disassemble the heat radiating device.

Description

Multilayer ceramic capacitor

Technical Field

The utility model belongs to the technical field of capacitors, and particularly relates to a multilayer ceramic capacitor.

Background

The multilayer ceramic capacitor (chip multilayer ceramic capacitor) has the characteristics of large capacity, small volume, stable capacitance, good high-temperature resistance and moisture resistance, easiness in surface mounting and the like.

The existing multilayer ceramic capacitor can be directly and electrically connected and used after a coating is coated on the outer layer of the existing multilayer ceramic capacitor, but the temperature is possibly too high due to the conditions of overlarge current and the like in the use process, and the existing multilayer ceramic capacitor does not have any heat dissipation device, so that the existing multilayer ceramic capacitor cannot be cooled under the condition of high temperature, and the service life of the capacitor is greatly reduced.

For example, the existing chinese patent number is: CN218548212U is a multilayer ceramic capacitor, comprising a ceramic body and two end electrodes, the ceramic body is in a cuboid shape, the ceramic body comprises a main body part, a reinforcing part and an outer layer part, the upper side surface and the lower side surface of the main body part are respectively covered with the reinforcing part, and the reinforcing part is made of a ceramic dielectric material.

It is known that the above-cited patent document also has the same problems that the device can effectively increase the strength of the outer wall of the multilayer ceramic capacitor to prevent the multilayer ceramic capacitor from being damaged when in use, but does not have any heat dissipation device when in actual use, so that the capacitor is extremely easy to overheat due to other reasons such as overlarge current, the overheat cannot be cooled down in time, and the service life of the capacitor can be greatly reduced in long time.

Disclosure of Invention

The utility model aims to provide a multilayer ceramic capacitor for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multilayer ceramic capacitor, includes multilayer ceramic capacitor's cladding material and ceramic dielectric, the inside of cladding material is equipped with internal electrode A and internal electrode B, the both ends of ceramic dielectric are fixedly connected with ceramic dielectric respectively, two run through fixedly connected with connecting wire on the ceramic dielectric, the protection casing has been cup jointed in the outside symmetry slip of cladding material and ceramic dielectric, a plurality of louvres have been seted up on the lateral wall of protection casing, two L type hole has been seted up on the lateral wall of protection casing, and two connecting wires sliding connection respectively in the inside in L type hole, one of them draw-in groove has been seted up to the top surface symmetry of protection casing, two the inside fixedly connected with a plurality of heat exchange tubes of protection casing.

Preferably, the heat exchange tubes are uniformly distributed on the inner wall of the protective cover respectively, and the plurality of heat exchange tubes are all in sliding fit with the surfaces of the plating layer and the ceramic medium.

Preferably, a plurality of communicating pipes are fixedly connected between the heat exchange pipes, and the heat exchange pipes and the interiors of the communicating pipes are filled with heat dissipation liquid.

Preferably, the top surface symmetry of another protection casing fixedly connected with L type pole, the terminal fixedly connected with pull rod of L type pole, the rotation has cup jointed the sleeve pipe on the pull rod lateral wall, the screw rod has been cup jointed to the telescopic other end screw thread.

Preferably, the tail end of the screw rod is fixedly connected with an L-shaped telescopic rod, and one end of the L-shaped telescopic rod extends to the inside of a clamping groove formed in the other protective cover.

Preferably, an annular groove is formed in the side wall of the pull rod, the annular groove is located at a sleeved position of the sleeve, a limiting ring is fixedly connected to the inner wall of the sleeve, and the limiting ring is rotationally connected to the inner portion of the annular groove.

Preferably, the side walls of the two opposite sides of the protective cover are fixedly connected with sealing gaskets.

Compared with the prior art, the utility model has the technical effects and advantages that:

the multilayer ceramic capacitor is characterized in that heat exchange tubes and communicating tubes are filled with heat dissipation liquid, two connecting wires penetrate through L-shaped holes formed in the two protective covers and then are sleeved on a plating layer and a ceramic medium, two L-shaped telescopic rods arranged on one protective cover are lifted upwards and pushed in opposite directions until the lower ends of the two L-shaped telescopic rods are clamped to the inside of a clamping groove formed in the upper end of the other protective cover, then a sleeve is rotated, a screw sleeved on the inner threads of the sleeve moves towards the inside of the sleeve through rotation of the sleeve, meanwhile the L-shaped telescopic rods and the other protective cover clamped to move towards the other protective cover until the two protective covers are clamped, and at the moment, the heat exchange tubes inside the two protective covers are attached to the surfaces of the plating layer and the ceramic medium and exchange heat generated by the multilayer ceramic capacitor through the heat dissipation liquid inside the heat exchange tubes. Compared with the prior art, the device can effectively radiate the heat of the multilayer ceramic capacitor, and is convenient to install and disassemble the heat radiating device.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a three-dimensional cross-sectional view of a multilayer ceramic capacitor of the present utility model;

FIG. 3 is a schematic view of a protective cover and a heat exchange tube according to the present utility model;

fig. 4 is a schematic diagram of the structure of the pull rod, the screw rod, the sleeve and the like in the utility model.

Reference numerals illustrate:

in the figure: 1. plating; 2. a ceramic medium; 3. a connecting wire; 4. an inner electrode A; 5. an inner electrode B; 6. a protective cover; 7. a heat radiation hole; 8. an L-shaped hole; 9. a clamping groove; 10. a sealing gasket; 11. a heat exchange tube; 12. an L-shaped rod; 13. a pull rod; 14. a screw; 15. an L-shaped telescopic rod; 16. a sleeve; 17. a limiting ring; 18. and communicating pipe.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.

Unless the directions indicated by the individual definitions are used, the directions of up, down, left, right, front, rear, inner and outer are all directions of up, down, left, right, front, rear, inner and outer in the drawings shown in the present utility model, and are described herein together.

The connection mode can adopt the prior modes such as bonding, welding, bolting and the like, and is based on the actual requirement.

As shown in fig. 1 to 4, a multilayer ceramic capacitor, cladding material 1 and ceramic medium 2 including multilayer ceramic capacitor, the inside of cladding material 1 is equipped with inner electrode A4 and inner electrode B5, the both ends of ceramic medium 2 are fixedly connected with ceramic medium 2 respectively, run through fixedly connected with connecting wire 3 on two ceramic medium 2, the outside symmetry sliding sleeve of cladding material 1 and ceramic medium 2 has covered protection casing 6, a plurality of louvres 7 have been seted up on the lateral wall of protection casing 6, louvres 7 are the bar setting, can effectually release the heat in the heat transfer tube 11 to the outside of protection casing 6, L type hole 8 has been seted up on the lateral wall of two protection casing 6, L type hole 8 is convenient for connecting wire 3 slip through its inside, and realize not having cut off connecting wire 3 alright install protection casing 6 after two connecting wires 3 and other devices accomplish electric connection, and two connecting wires 3 are in the inside of L type hole 8, the top surface symmetry of one of them protection casing 6 has seted up draw-in groove 9, the inside fixedly connected with a plurality of protection casings 6, a plurality of heat transfer tubes 11 evenly distributed in the inside protection casing 6 of heat transfer tube 11, consequently, can also be more impaired by the heat transfer pad 10 can also be effectively produced in the sealed heat transfer pad's of two protection casing 6 after the inside connection is accomplished to two protection casing 6, can both sides are sealed up evenly, can be more impaired in the face seal 10, the face seal 10 has been realized and can be more evenly and can be had the surface seal 10 to the face seal and can be better, the face sealed and can be broken by the face sealed by the face and the face sealed.

The heat exchange tubes 11 are respectively and uniformly distributed on the inner wall of the protective cover 6, the plurality of heat exchange tubes 11 are respectively and slidably attached to the surfaces of the plating layer 1 and the ceramic medium 2, a communicating pipe 18 is fixedly connected between the plurality of heat exchange tubes 11, and the heat exchange tubes 11 and the communicating pipe 18 are respectively filled with cooling liquid, wherein the cooling liquid can be antifreeze liquid or other liquid capable of cooling.

The top surface symmetry fixedly connected with L type pole 12 of another protection casing 6, the terminal fixedly connected with pull rod 13 of L type pole 12, the sleeve pipe 16 has been cup jointed in the rotation on the pull rod 13 lateral wall, screw rod 14 has been cup jointed to the other end screw thread of sleeve pipe 16, the terminal fixedly connected with L type telescopic link 15 of screw rod 14, the draw-in groove 9 inside of seting up on another protection casing 6 is extended to the one end of L type telescopic link 15, the ring channel has been seted up on the lateral wall of pull rod 13, and the ring channel is located sleeve pipe 16's cup joint department, fixedly connected with spacing ring 17 on sleeve pipe 16's the inner wall, spacing ring 17 rotates the inside of connecting in the ring channel, in order to this can realize that sleeve pipe 16 keeps motionless while the rotation, and screw rod 14 at sleeve pipe 16 inside the screw rod 16 of screw sleeve pipe cup joint moves to sleeve pipe 16 inside.

Principle of operation

When the multilayer ceramic capacitor is used, firstly, the heat exchange tube 11 fixedly connected inside the protective cover 6 and the inside of the communicating tube 18 are filled with heat dissipation liquid, then two connecting wires 3 extending out of two ends of the multilayer ceramic capacitor respectively penetrate through L-shaped holes 8 formed on the two protective covers 6, then the two protective covers 6 are pushed in opposite directions until the two protective covers are sleeved on the coating 1 and the ceramic medium 2, then the lower ends of two L-shaped telescopic rods 15 arranged on one protective cover 6 are lifted upwards, the two protective covers 6 are pushed in opposite directions until the lower ends of the two L-shaped telescopic rods 15 are opposite to clamping grooves 9 symmetrically formed on the top surfaces of the other protective cover 6, the L-shaped telescopic rods 15 are pushed downwards until the lower ends of the L-shaped telescopic rods 15 are clamped inside the clamping grooves 9 formed on the upper ends of the other protective cover 6, then, the sleeve 16 is rotated, the screw 14 sleeved on the internal threads of the sleeve 16 moves towards the inside of the sleeve 16, the L-shaped telescopic rod 15 fixedly connected with the screw 14 and the other protective cover 6 clamped by the L-shaped telescopic rod 15 are driven to move towards the other protective cover 6 until the two protective covers 6 are clamped, the sealing gasket 10 between the two protective covers 6 is extruded, the two protective covers 6 can be tightly connected due to the design of the sealing gasket 10, the joint between the two protective covers 6 can be effectively protected from damage caused by vibration or friction, and at the moment, the heat exchange tubes 11 inside the two protective covers 6 are attached to the surfaces of the coating 1 and the ceramic medium 2, and heat generated by the multilayer ceramic capacitor is exchanged through heat dissipation liquid inside the heat exchange tubes 11.

It should be noted that relational terms such as one and two are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multilayer ceramic capacitor comprising a coating (1) and a ceramic dielectric (2) of the multilayer ceramic capacitor, characterized in that: the inside of cladding material (1) is equipped with internal electrode A (4) and internal electrode B (5), the both ends of ceramic dielectric (2) are fixedly connected with ceramic dielectric (2) respectively, two run through fixedly connected with connecting wire (3) on ceramic dielectric (2), cladding material (1) and ceramic dielectric (2)'s outside symmetry slip has cup jointed protection casing (6), a plurality of louvres (7) have been seted up on the lateral wall of protection casing (6), two L type hole (8) have been seted up on the lateral wall of protection casing (6), and two connecting wires (3) sliding connection are in the inside of L type hole (8) respectively, one of them draw-in groove (9) have been seted up to the top surface symmetry of protection casing (6), two the inside fixedly connected with a plurality of heat exchange tubes (11) of protection casing (6).

2. A multilayer ceramic capacitor according to claim 1, wherein: the heat exchange tubes (11) are uniformly distributed on the inner wall of the protective cover (6), and the heat exchange tubes (11) are all in sliding fit with the surfaces of the coating (1) and the ceramic medium (2).

3. A multilayer ceramic capacitor according to claim 2, wherein: a communicating pipe (18) is fixedly connected between the heat exchange pipes (11), and the heat exchange pipes (11) and the communicating pipe (18) are filled with cooling liquid.

4. A multilayer ceramic capacitor according to claim 3, wherein: the top surface symmetry of another protection casing (6) fixedly connected with L type pole (12), the end fixedly connected with pull rod (13) of L type pole (12), rotate on pull rod (13) lateral wall and cup joint sleeve pipe (16), the screw rod (14) have been cup jointed to the other end screw thread of sleeve pipe (16).

5. A multilayer ceramic capacitor according to claim 4, wherein: the tail end of the screw rod (14) is fixedly connected with an L-shaped telescopic rod (15), and one end of the L-shaped telescopic rod (15) extends into a clamping groove (9) formed in the other protective cover (6).

6. A multilayer ceramic capacitor according to claim 5, wherein: an annular groove is formed in the side wall of the pull rod (13), the annular groove is located at a sleeved position of the sleeve (16), a limiting ring (17) is fixedly connected to the inner wall of the sleeve (16), and the limiting ring (17) is rotationally connected to the inside of the annular groove.

7. A multilayer ceramic capacitor according to claim 6, wherein: and sealing gaskets (10) are fixedly connected to the side walls of the opposite sides of the two protective covers (6).