CN212365754U

CN212365754U - Alternating current ceramic dielectric capacitor with filtering function

Info

Publication number: CN212365754U
Application number: CN202021071868.8U
Authority: CN
Inventors: 孙永卫
Original assignee: Nanjing Xinyusheng Electronics Co ltd
Current assignee: Nanjing Xinyusheng Electronics Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-15
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses an exchange porcelain dielectric capacitor with filtering function relates to condenser technical field, can produce certain electromagnetic interference in the course of the work for solving consumer to the wave band frequency that has leaded to the signal of telecommunication to a certain extent changes, and the condenser can lead to its charge-discharge performance when receiving specific wave band frequency interference, the not good problem of result of use. The capacitor comprises a capacitor shell and is characterized in that a circuit board is arranged inside the capacitor shell, capacitor cores are arranged on two sides of the circuit board, a temperature sensor is arranged on one side of each capacitor core, a current sensor is arranged on the other side of each capacitor core, an anode leading-out end and a cathode leading-out end are arranged below the capacitor cores respectively, metal pins are arranged below the anode leading-out ends and the cathode leading-out ends respectively, dielectric ceramics are arranged inside the capacitor cores, internal electrodes are arranged inside the dielectric ceramics, and external electrodes are arranged on two sides of the dielectric ceramics.

Description

Alternating current ceramic dielectric capacitor with filtering function

Technical Field

The utility model relates to a condenser technical field specifically is an exchange porcelain capacitor with filtering function.

Background

The ceramic dielectric container is made up by using capacitor ceramic (barium titanate-titanium monoxide) with high dielectric constant as medium, extruding it into circular tube, circular sheet or circular disk, and using sintering-infiltration method to coat silver on the ceramic as electrode. It is divided into two kinds of high frequency ceramic medium and low frequency ceramic medium. A capacitor having a small positive temperature coefficient of capacitance is used in a highly stable oscillation circuit as a circuit capacitor and a pad capacitor. Low frequency ceramic capacitors are limited to bypass or blocking dc in circuits with lower operating frequencies or where stability and loss requirements are low, and such capacitors are not suitable for use in pulsed circuits because they are prone to breakdown by the pulse voltage. The ceramic chip capacitor mainly aims at high frequency, the high-voltage ceramic chip capacitor depends on the occasion of using, and the high-frequency interference can be eliminated through typical effects.

At present, when an alternating current ceramic dielectric capacitor is used in a circuit, other electric equipment can generate certain electromagnetic interference in the working process, so that the wave band frequency of an electric signal is changed to a certain extent, the capacitor can cause the charge and discharge performance when being interfered by specific wave band frequency, the using effect is poor, and the using requirement can not be met. Therefore, there is a need for an ac ceramic capacitor with filtering function to solve these problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exchange porcelain dielectric capacitor with filtering function to it can produce certain electromagnetic interference to propose consumer in the working process in the above-mentioned background art to solve, thereby has leaded to the wave band frequency of the signal of telecommunication to a certain extent to change, and the condenser can lead to its charge-discharge performance when receiving specific wave band frequency interference, and the result of use is not good, can not satisfy user demand's problem.

In order to achieve the above object, the utility model provides a following technical scheme: an alternating current ceramic dielectric capacitor with a filtering function comprises a capacitor shell, a fuse breaker, a filter and a relay, wherein a circuit board is arranged in the capacitor shell and is connected with the capacitor shell through screws, capacitor cores are arranged on two sides of the circuit board, a temperature sensor is arranged on one side of each capacitor core, a current sensor is arranged on the other side of each capacitor core, the temperature sensors and the current sensors are both attached to the capacitor shell and are connected with the capacitor shell, the temperature sensor is PT100 in type, the current sensor is JCE1005-FS in type, a positive leading-out end and a negative leading-out end are respectively arranged below the capacitor cores, one ends of the positive leading-out end and the negative leading-out end penetrate through the capacitor shell and extend to the lower side of the capacitor shell, and the positive leading-out end and the negative leading-out end are both electrically connected with the capacitor cores, the capacitor comprises a capacitor core, a positive electrode leading-out end and a negative electrode leading-out end, wherein metal pins are arranged below the positive electrode leading-out end and the negative electrode leading-out end and are electrically connected with the positive electrode leading-out end and the negative electrode leading-out end respectively, dielectric ceramics are arranged inside the capacitor core, internal electrodes are arranged inside the dielectric ceramics, the number of the internal electrodes can be set according to requirements, external electrodes are arranged on two sides of the dielectric ceramics, and two ends of the external electrodes are attached to the dielectric ceramics respectively.

Preferably, a conductive adhesive is arranged between the capacitor core and the circuit board, and two ends of the conductive adhesive are respectively connected with the capacitor core and the circuit board in an adhesive manner.

Preferably, polyester filling material is arranged between the capacitor core and the capacitor shell.

Preferably, the outside of capacitor case is provided with epoxy encapsulation cover, and epoxy encapsulation cover and metal pin sealing connection, one side of epoxy encapsulation cover is provided with the data and spouts the sign indicating number district, and the data spouts the sign indicating number district and sets up structure as an organic whole with epoxy encapsulation cover.

Preferably, a flexible pad is arranged between the dielectric ceramic and the external electrode, and two ends of the flexible pad are respectively attached to the dielectric ceramic and the external electrode.

Preferably, the both ends of wave filter respectively with fuse-breaker's one end electric connection, fuse-breaker's the other end respectively with the one end electric connection of relay, the other end of relay respectively with condenser electric connection, temperature sensor and current sensor's both sides all with the both ends electric connection of relay, fuse-breaker's model is C120, the model of wave filter is TPM2020-R01, the model of relay is JRC-7M.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that through the arrangement of the polyester filling material and the filter, the polyester filling material has the characteristics of high dielectric constant, high insulating strength, high mechanical strength, lower absorption rate, high temperature resistance and self-restoration, and can effectively reduce the interference to the polyester filling material caused by the external environment when in use; the input electric signal can be processed by the filter, and the specific wave band frequency is filtered, so that the interference is reduced. The problem of the interference performance is seen to the condenser that has been increased to make its filtering function further strengthen, improve the availability factor is solved.

2. The utility model discloses a device passes through temperature sensor, current sensor and fuse circuit breaker's setting, can monitor condenser inside temperature and the current that flows through with the help of temperature sensor and current sensor, when the data detected surpassed preset data, can spontaneous change relay operating condition to trigger fuse circuit breaker, cut off the power supply. The problem of when the temperature is too high can flow through the electric current too big, can in time cut off the power supply, avoid the condenser to puncture and damage, play certain protection is solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the capacitor core and the circuit board according to the present invention;

fig. 4 is a working principle diagram of the temperature sensor and the current sensor of the present invention.

In the figure: 1. a capacitor case; 2. a circuit board; 3. a capacitor core; 4. polyester filling material; 5. a temperature sensor; 6. a current sensor; 7. a positive electrode leading-out terminal; 8. a negative lead-out terminal; 9. a metal pin; 10. an epoxy resin encapsulation sleeve; 11. a conductive adhesive; 12. a data code spraying area; 13. an external electrode; 14. a dielectric ceramic; 15. an internal electrode; 16. a flexible pad; 17. a fuse cutout; 18. a filter; 19. a relay.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: an alternating current ceramic capacitor with a filtering function comprises a capacitor shell 1, a fuse breaker 17, a filter 18 and a relay 19, wherein a circuit board 2 is arranged inside the capacitor shell 1, the circuit board 2 is connected with the capacitor shell 1 through screws, capacitor cores 3 are arranged on two sides of the circuit board 2, a temperature sensor 5 is arranged on one side of each capacitor core 3, the temperature sensor 5 can detect the working temperature inside the capacitor, a current sensor 6 is arranged on the other side of each capacitor core 3, the temperature sensor 5 and the current sensor 6 are both connected with the capacitor shell 1 in a laminating manner, the model of the temperature sensor 5 is PT100, the model of the current sensor 6 is JCE1005-FS, the current sensor 6 can detect the size of flowing current, an anode leading-out end 7 and a cathode leading-out end 8 are respectively arranged below the capacitor core 3, and one end of the positive leading-out end 7 and one end of the negative leading-out end 8 penetrate through the capacitor shell 1 and extend to the lower side of the capacitor shell 1, the positive leading-out end 7 and the negative leading-out end 8 are both electrically connected with the capacitor core 3, metal pins 9 are arranged below the positive leading-out end 7 and the negative leading-out end 8, the metal pins 9 are respectively electrically connected with the positive leading-out end 7 and the negative leading-out end 8, dielectric ceramics 14 are arranged inside the capacitor core 3, internal electrodes 15 are arranged inside the dielectric ceramics 14, the number of the internal electrodes 15 can be set according to requirements, external electrodes 13 are arranged on two sides of the dielectric ceramics 14, and two ends of the external electrodes 13 are respectively attached to the dielectric ceramics 14.

Further, a conductive adhesive 11 is arranged between the capacitor core 3 and the circuit board 2, and two ends of the conductive adhesive 11 are respectively connected with the capacitor core 3 and the circuit board 2 in an adhesive manner. The capacitor core 3 can be fixed by the conductive adhesive 11 and has a corresponding conductive property.

Furthermore, polyester filler 4 is arranged between the capacitor core 3 and the capacitor shell 1. The polyester filling material 4 can effectively reduce the dielectric loss and has certain self-healing capability.

Further, the outside of capacitor case 1 is provided with epoxy encapsulation cover 10, and epoxy encapsulation cover 10 and metal pin 9 sealing connection, one side of epoxy encapsulation cover 10 is provided with data and spouts sign indicating number district 12, and data spout sign indicating number district 12 and epoxy encapsulation cover 10 sets up structure as an organic whole. The epoxy resin packaging sleeve 10 can play a role in moisture protection and insulation, and plays a certain role in protecting the capacitor.

Further, a flexible pad 16 is disposed between the dielectric ceramic 14 and the external electrode 13, and two ends of the flexible pad 16 are respectively attached to the dielectric ceramic 14 and the external electrode 13. The flexible pad 16 can provide appropriate damping when subjected to vibrations.

Further, the both ends of wave filter 18 respectively with fuse-breaker 17's one end electric connection, fuse-breaker 17's the other end respectively with relay 19's one end electric connection, relay 19's the other end respectively with condenser electric connection, temperature sensor 5 and current sensor 6's both sides all with relay 19's both ends electric connection, fuse-breaker 17's model is C120, wave filter 18's model is TPM2020-R01, relay 19's model is JRC-7M. The power supply can be cut off in time by the fuse breaker 17 when the operation data is abnormal.

The working principle is as follows: when the filter is used, the metal pins 9 are inserted into the working circuit board and soldered, the electric constant is firstly input into the filter 18 when the filter is used, so that the electric constant is preliminarily filtered, and the electric constant is input into the capacitor to work, so that the input electric constant can be rectified, the use stability is improved, and the filter has a certain filtering function. Temperature sensor 5 and current sensor 6 can detect inside temperature and the electric current size that work flowed through in the use, and when the high temperature meeting electric current exceeded breakdown current, the state of relay 19 changed this moment to trigger fuse-breaker 17, indirect cutoff filter 18 supplies power, has protected filter 18 to a certain extent, avoids the damage of filter 18, can normally work again after data is normal, the safety in utilization that improves.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An alternating current ceramic capacitor with a filtering function comprises a capacitor shell (1), a fuse cutout (17), a filter (18) and a relay (19), and is characterized in that: the capacitor is characterized in that a circuit board (2) is arranged inside the capacitor shell (1), the circuit board (2) is connected with the capacitor shell (1) through screws, capacitor cores (3) are arranged on two sides of the circuit board (2), a temperature sensor (5) is arranged on one side of each capacitor core (3), a current sensor (6) is arranged on the other side of each capacitor core (3), the temperature sensor (5) and the current sensor (6) are attached to the capacitor shell (1), the temperature sensor (5) is PT100, the current sensor (6) is JCE1005-FS, an anode leading-out end (7) and a cathode leading-out end (8) are arranged below the capacitor cores (3) respectively, and one end of the anode leading-out end (7) and one end of the cathode leading-out end (8) penetrate through the capacitor shell (1) and extend to the lower side of the capacitor shell (1), the capacitor is characterized in that the positive leading-out end (7) and the negative leading-out end (8) are electrically connected with the capacitor core (3), metal pins (9) are arranged below the positive leading-out end (7) and the negative leading-out end (8), the metal pins (9) are respectively electrically connected with the positive leading-out end (7) and the negative leading-out end (8), dielectric ceramics (14) are arranged inside the capacitor core (3), internal electrodes (15) are arranged inside the dielectric ceramics (14), the number of the internal electrodes (15) can be set according to requirements, external electrodes (13) are arranged on two sides of the dielectric ceramics (14), and two ends of the external electrodes (13) are respectively attached to the dielectric ceramics (14).

2. An AC ceramic capacitor with filtering function as claimed in claim 1, wherein: and a conductive adhesive (11) is arranged between the capacitor core (3) and the circuit board (2), and two ends of the conductive adhesive (11) are respectively bonded and connected with the capacitor core (3) and the circuit board (2).

3. An AC ceramic capacitor with filtering function as claimed in claim 1, wherein: polyester filling materials (4) are arranged between the capacitor core (3) and the capacitor shell (1).

4. An AC ceramic capacitor with filtering function as claimed in claim 1, wherein: the capacitor shell is characterized in that an epoxy resin packaging sleeve (10) is arranged outside the capacitor shell (1), the epoxy resin packaging sleeve (10) is connected with the metal pins (9) in a sealing mode, a data spraying area (12) is arranged on one side of the epoxy resin packaging sleeve (10), and the data spraying area (12) and the epoxy resin packaging sleeve (10) are of an integrated structure.

5. An AC ceramic capacitor with filtering function as claimed in claim 1, wherein: a flexible pad (16) is arranged between the dielectric ceramic (14) and the external electrode (13), and two ends of the flexible pad (16) are respectively attached to the dielectric ceramic (14) and the external electrode (13).

6. An AC ceramic capacitor with filtering function as claimed in claim 1, wherein: the both ends of wave filter (18) respectively with the one end electric connection of fuse-link breaker (17), the other end of fuse-link breaker (17) respectively with the one end electric connection of relay (19), the other end of relay (19) respectively with condenser electric connection, the both sides of temperature sensor (5) and current sensor (6) all with the both ends electric connection of relay (19), the model of fuse-link breaker (17) is C120, the model of wave filter (18) is TPM2020-R01, the model of relay (19) is JRC-7M.