MLCC oven

Abstract

The utility model relates to the technical field of MLCC capacitors, in particular to an MLCC oven, which comprises an oven body, a plurality of negative pressure chambers, a sucking pump and a plurality of screens, the plurality of negative pressure chambers are arranged in the oven body, the sucking pump is communicated with the plurality of negative pressure chambers through air pipes, the upper surfaces of the negative pressure chambers are provided with a plurality of air guide holes, the screens are arranged on the negative pressure chambers, and the air guide holes are communicated with the air guide holes. The screen is movably connected to the air guide hole; the negative pressure chamber is arranged in the drying oven, the sucking pump is communicated with the negative pressure chamber, and when the MLCC capacitor is placed on the screen and the screen is placed on the air guide hole, the sucking pump works to form negative pressure in the negative pressure chamber, so that air flow in the drying oven forcibly flows through the surface of the MLCC capacitor and is pumped out through the air guide hole and the negative pressure chamber, the air circulation speed of the surface of the MLCC is increased, and the service life of the MLCC capacitor is prolonged. The baking time is reduced, and the problems of MLCC capacitor oxidation and end corner blackening are avoided.

Description

Technical Field

[0001] This utility model relates to the field of MLCC capacitor technology, and in particular to an MLCC drying oven. Background Technology

[0002] MLCC capacitors, also known as multilayer ceramic capacitors or monolithic capacitors, are typically made by stacking ceramic dielectric films with printed metal electrodes in a staggered manner, then sintering them at high temperature in a single process to form a ceramic chip. Metal layers (external electrodes) are then sealed at both ends of the chip, creating a monolithic structure. This structure gives MLCC capacitors advantages such as small size, large capacitance, wide frequency range, long lifespan, and low cost.

[0003] In the production process of MLCC capacitors, chamfering is required for the semi-finished MLCC capacitors to reduce the risk of damage and improve product quality. The final step in the chamfering process is drying the semi-finished MLCC capacitors. Currently, traditional MLCC drying ovens on the market have slow air circulation, resulting in a long overall baking time. Moisture retention can easily lead to oxidation and blackening of the capacitor ends, affecting production yield.

[0004] It should be noted that the information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] To address the technical problem of long baking times in traditional ovens, this invention provides an MLCC oven, which includes a body, several negative pressure chambers, an air pump, and several screens.

[0006] A plurality of negative pressure chambers are disposed within the box body, and the air pump is connected to the plurality of negative pressure chambers via an air pipe. A plurality of air guide holes are provided on the upper surface of the negative pressure chambers, and a screen is disposed on the negative pressure chambers and is movably connected to the air guide holes.

[0007] Furthermore, the number of negative pressure chambers is 1 to 3.

[0008] Furthermore, the negative pressure chamber is inverted trapezoidal.

[0009] Furthermore, the mesh size of the sieve is 20 to 100 mesh.

[0010] Furthermore, the MLCC oven also includes a screen support, which is disposed on the air guide hole and is movably connected to the screen.

[0011] Furthermore, the MLCC oven also includes a cover plate, which is movably connected to the air guide hole.

[0012] Furthermore, the MLCC oven also includes a door, which is movably connected to the oven body.

[0013] Furthermore, several air inlets are provided on the side wall of the housing.

[0014] Furthermore, a filter screen is provided on the air inlet.

[0015] Furthermore, the heating temperature of the MLCC oven is adjustable.

[0016] Based on the above, the MLCC drying oven provided by this utility model, compared with the prior art, sets up a negative pressure chamber inside the drying oven, and connects the air pump to the negative pressure chamber. When the MLCC capacitor is placed on the screen and the screen is placed on the air guide hole, the air pump works to create a negative pressure in the negative pressure chamber, thereby forcing the airflow in the drying oven to flow through the surface of the MLCC capacitor and be extracted through the air guide hole and the negative pressure chamber. This achieves the purpose of increasing the air flow speed on the surface of the MLCC, reducing the baking time, and avoiding the problems of oxidation and blackening of the corners of the MLCC capacitor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships shown in the drawings in the following description are based on the direction in which the components are drawn in the figures.

[0018] Figure 1 This is a schematic diagram of the structure of an MLCC drying oven provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the explosion structure of a negative pressure chamber provided in an embodiment of the present invention.

[0020] Figure label:

[0021] Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof mean "at least comprising."

[0024] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an MLCC drying oven provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the explosion structure of a negative pressure chamber provided in an embodiment of the present invention.

[0025] To address the technical problem of long baking times in traditional ovens, or to achieve at least one or more of the aforementioned advantages, this utility model provides an MLCC oven. As shown in the figure, the MLCC oven includes a body 10, several negative pressure chambers 20, a vacuum pump 30, and several screens 40.

[0026] The chamber 10 is a heating oven capable of drying MLCC capacitors. Preferably, the heating temperature of the chamber 10 is adjustable and can be adjusted according to specific baking requirements. Specifically, the adjustable range of the heating temperature of the chamber 10 is 130° to 300°.

[0027] Several negative pressure chambers 20 are disposed inside the housing 10. An air pump 30 is connected to the several negative pressure chambers 20 via an air pipe 31. In specific implementation, the several negative pressure chambers 20 are arranged alternately within the housing 10. The air pump 30 is disposed outside the housing 10 and is connected to the negative pressure chambers 20 via the air pipe 31. When the air pump 30 operates, it draws air from the negative pressure chambers 20 through the air pipe 31, creating a negative pressure inside the negative pressure chambers 20. Several air guide holes 21 are provided on the upper surface of the negative pressure chambers 20. Hot gas in the housing 10 is drawn into the negative pressure chambers 20 through the air guide holes 21 due to the negative pressure in the negative pressure chambers 20, and then extracted by the air pump 30; that is, the hot gas flow in the housing 10 is forced to flow through the air guide holes 21.

[0028] Furthermore, a screen 40 is disposed on the negative pressure chamber 20 and is movably connected to the air guide hole 21. In specific implementation, the screen 40 is used to place the MLCC capacitor. The screen 40 is detachably mounted on the air guide hole 21. When the vacuum pump 30 is working, a negative pressure is formed inside the negative pressure chamber 20. When the hot air in the housing 10 is drawn into the negative pressure chamber 20 through the air guide hole 21, it will simultaneously flow over the screen 40 and the surface of the MLCC capacitor, increasing the gas flow rate on the surface of the MLCC capacitor, shortening the baking time, and avoiding the problems of oxidation and blackening of the MLCC capacitor's ends.

[0029] In some preferred embodiments, the number of negative pressure chambers 20 is 1 to 3. Of course, it is understood that the number of negative pressure chambers 20 can be adjusted according to the size of the housing 10, which will not be elaborated here.

[0030] In some preferred embodiments, the negative pressure chamber 20 is an inverted trapezoid, which facilitates the installation and maintenance of the negative pressure chamber 20.

[0031] In some preferred embodiments, the mesh size of the sieve 40 is 20 to 100 mesh.

[0032] In some preferred embodiments, the MLCC oven further includes a screen support 50. The screen support 50 is disposed on the air guide hole 21. The screen support 50 is movably connected to the screen 40. The screen support 50 enables the screen 40 to be more securely installed on the air guide hole 21, improving stability.

[0033] In some preferred embodiments, the MLCC oven also includes a cover plate 60. The cover plate 60 is movably connected to the air vent 21. When the number of MLCC chips to be dried in a single cycle is small, the cover plate 60 can be closed to the air vent 21 where the screen 40 is not placed, thereby reducing airflow loss.

[0034] In some preferred embodiments, the MLCC oven also includes a door (not shown). The door can be closed with the oven body 10 to form a closed space.

[0035] In some preferred embodiments, the side wall of the housing 10 has several air inlets 11. Outside air can enter the housing 10 through the air inlets 11. Preferably, the air inlets 11 may be equipped with filters (not shown) to filter impurities in the air and prevent clogging and contamination caused by impurities entering the housing 10.

[0036] In summary, the MLCC oven provided by this utility model, compared with the prior art, sets up a negative pressure chamber inside the oven, and connects the air pump to the negative pressure chamber. When the MLCC capacitor is placed on the screen and the screen is placed on the air guide hole, the air pump works to create a negative pressure in the negative pressure chamber, thereby forcing the airflow in the oven to flow through the surface of the MLCC capacitor and being extracted through the air guide hole and the negative pressure chamber. This achieves the purpose of increasing the air flow speed on the surface of the MLCC, reducing the baking time, and avoiding the problems of oxidation and blackening of the MLCC capacitor's ends.

[0037] Although this document uses terms such as negative pressure chamber and air duct frequently, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

[0038] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this utility model can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An MLCC drying oven, characterized in that: include Box; A plurality of negative pressure chambers are disposed within the box body; An air pump is connected to several negative pressure chambers via air pipes, and several air guide holes are provided on the upper surface of the negative pressure chambers. Several screens are provided, which are disposed on the negative pressure chamber and are movably connected to the air guide holes.

2. The MLCC drying oven according to claim 1, characterized in that: The number of negative pressure chambers is 1 to 3.

3. The MLCC drying oven according to claim 1, characterized in that: The negative pressure chamber is inverted trapezoidal.

4. The MLCC drying oven according to claim 1, characterized in that: The mesh size of the sieve is 20 to 100 mesh.

5. The MLCC drying oven according to claim 1, characterized in that: The MLCC drying oven also includes a screen support, which is disposed on the air guide hole and is movably connected to the screen.

6. The MLCC drying oven according to claim 1, characterized in that: The MLCC oven also includes a cover plate, which is movably connected to the air guide hole.

7. The MLCC drying oven according to claim 1, characterized in that: The MLCC oven also includes a door, which is movably connected to the oven body.

8. The MLCC drying oven according to claim 1, characterized in that: Several air inlets are opened on the side wall of the box.

9. The MLCC drying oven according to claim 8, characterized in that: The air inlet is equipped with a filter screen.

10. The MLCC drying oven according to claim 1, characterized in that: The heating temperature of the MLCC oven is adjustable.

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