Horizontal safety capacitor

Abstract

The utility model relates to the technical field of circuit board elements, and discloses a horizontal safety capacitor, which comprises a body, the body is horizontally arranged on a circuit board, an electrode hole is arranged on the body, and a metal paint layer is plated on the inner wall surface of the body at the position of the electrode hole; the upper electrode comprises a first electrode plate and a second electrode plate, the first electrode plate is arranged above the body and covers the electrode hole, the second electrode plate is close to the electrode hole and is connected with the metal paint layer, and the second electrode plate is connected with a first pin; and the lower electrode is arranged below the body, and the lower electrode is connected with a second pin. Through the arrangement of the electrode holes with the metal paint layers, the pins connected with the upper electrode and the lower electrode are located on the same side of the body, the pins do not need to be arranged on the two sides of the body in the vertical direction, the thickness of the body is reduced, and the miniaturization and thinning requirements of the horizontal safety capacitor can be met.

Description

Technical Field

[0001] This utility model relates to the field of circuit board component technology, and in particular to a horizontal safety capacitor. Background Technology

[0002] Currently, most existing safety-certified ceramic capacitors adopt a traditional structure, with two leads soldered onto a ceramic plate (silver or copper electrode) and the surface encapsulated with epoxy grease of a certain thickness. The product is mounted vertically on the PCB, with varying heights depending on the size of the product. However, as the requirements for miniaturization and thinning of various electronic products continue to increase, the height requirements for electronic components are becoming increasingly smaller. Current vertical safety capacitors cannot meet these miniaturization and thinning requirements, nor can they meet the lower height requirements for electronic components. Utility Model Content

[0003] The purpose of this invention is to provide a horizontal safety capacitor that eliminates the need for pins on both sides of the body in the vertical direction, thereby reducing the thickness of the body and facilitating the miniaturization and thinning of horizontal safety capacitors.

[0004] To achieve the above objectives, this utility model provides a horizontal safety capacitor, comprising:

[0005] The main body is horizontally disposed on a circuit board. Electrode holes are provided on the main body, and the inner wall surface of the main body at the electrode holes is coated with a metallic paint layer.

[0006] The upper electrode includes a first electrode plate and a second electrode plate. The first electrode plate is disposed above the body and covers the electrode hole. The second electrode plate is close to the electrode hole and connected to the metal paint layer. The second electrode plate is connected to a first pin.

[0007] The lower electrode is located below the body and is connected to the second pin.

[0008] Compared with the prior art, the horizontal safety capacitor of this utility model has the following advantages: the body has an upper electrode and a lower electrode respectively arranged on both sides in the vertical direction, and the body has electrode holes with the inner wall plated with metallic paint. The upper electrode includes a first electrode plate and a second electrode plate. The first electrode plate passes through the electrode hole and connects to the second electrode plate. The second electrode plate is connected to the first pin. The lower electrode is directly connected to the second pin. By setting the electrode holes, the pins connected to the upper electrode and the lower electrode are located on the same side of the body. It is not necessary to set pins on both sides of the body in the vertical direction, which reduces the thickness of the body and helps to meet the miniaturization and thinning requirements of the horizontal safety capacitor.

[0009] The horizontal safety capacitor of this utility model embodiment has a body made of ceramic material.

[0010] In this embodiment of the horizontal safety capacitor, the upper electrode and the lower electrode are silver electrode sheets or copper electrode sheets.

[0011] The horizontal safety capacitor of this utility model embodiment has a receiving groove at the bottom of the body, and a discharge part is provided in the receiving groove. The two ends of the discharge part are respectively connected to the metal paint layer and the lower electrode.

[0012] The horizontal safety capacitor of this utility model embodiment has an epoxy resin layer covering the exterior of the body, and the first pin and the second pin extend out of the epoxy resin layer.

[0013] The horizontal safety capacitor of this utility model embodiment has the first and second pins made of copper, and the surfaces of the first and second pins have a tin plating layer.

[0014] The horizontal safety capacitor of this utility model embodiment has a silver-plated layer on the inner wall surface of the body at the electrode hole.

[0015] In this embodiment of the horizontal safety capacitor, the horizontal cross-section of the electrode hole is set to square or circular.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a side cross-sectional view of a horizontal safety capacitor according to an embodiment of the present invention;

[0018] Figure 2 This is a top view schematic diagram of a horizontal safety capacitor according to an embodiment of the present invention;

[0019] Figure 3 This is a bottom view schematic diagram of the horizontal safety capacitor according to an embodiment of the present utility model;

[0020] In the figure, 1 is the main body; 11 is the receiving groove; 2 is the upper electrode; 21 is the first electrode plate; 22 is the second electrode plate; 3 is the lower electrode; 4 is the electrode hole; 41 is the metallic paint layer; 5 is the first pin; 6 is the second pin; 7 is the discharge part; and 8 is the epoxy resin layer. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] like Figure 1 , 2 and Figure 3 As shown, a preferred embodiment of the present invention provides a horizontal safety capacitor, including a body 1. The body 1 has an upper electrode 2 and a lower electrode 3 respectively disposed on both sides in the vertical direction. The body 1 is horizontally disposed on a circuit board, and the circuit board can be cylindrical or square, depending on the requirements of the circuit board. An electrode hole 4 is provided on the body 1, which is disposed through the body 1 in the thickness direction. The inner wall surface of the body 1 at the electrode hole 4 is coated with a metallic paint layer 41.

[0026] The upper electrode 2 includes a first electrode plate 21 and a second electrode plate 22. The first electrode plate 21 is disposed above the body 1 and covers the electrode hole 4. The second electrode plate 22 is close to the electrode hole 4 and connected to a metallic paint layer 41. The second electrode plate 22 is connected to a first pin 5. Finally, the upper electrode 2 passes through the electrode hole 4 and is connected to the first pin 5, which is connected to the circuit board. The lower electrode 3 is disposed below the body 1 and is also closely attached to the body 1. The end of the lower electrode 3 away from the first pin 5 is connected to a second pin 6, which is directly connected to the circuit board. The horizontal safety capacitor of this application, by setting the electrode hole 4 plated with metallic paint on the body 1, allows the pins (first pin 5 and second pin 6) connected to the upper electrode 2 and the lower electrode 3 to be located on the side of the body 1 close to the circuit board, and allows the pins to be directly connected to the circuit board. It eliminates the need to set pins on both sides of the body 1 in the vertical direction, reducing the thickness of the body 1 and helping to meet the miniaturization and thinning requirements of the horizontal safety capacitor. Compared with existing technologies, the horizontal safety ceramic capacitor of this application can provide a full range of capacitance specifications while achieving a product height that is only 1 / 3 to 1 / 4 of the original product height, effectively saving circuit board surface space and better meeting the market demand for increasingly miniaturized and thin electronic products.

[0027] In some embodiments of this utility model, the body 1 is made of ceramic material, which is reliable insulated and resistant to high temperature, and will not cause leakage between the upper electrode 2 and the lower electrode 3.

[0028] In some embodiments of this utility model, the upper electrode 2 and the lower electrode 3 are silver electrode sheets or copper electrode sheets, which have strong conductivity and will not affect the circuit flow.

[0029] In some embodiments of this utility model, a receiving groove 11 is provided at the bottom of the main body 1. The receiving groove 11 penetrates the main body 1 in the width direction. A discharge part 7 is provided in the receiving groove 11. The discharge part 7 is composed of discharge material. The two ends of the discharge part 7 are respectively connected to the metal paint layer 41 and the lower electrode 3. The discharge material at the bottom of the main body 1 can effectively isolate the upper electrode 2 and the lower electrode 3 to avoid accidental discharge accidents.

[0030] In some embodiments of this invention, the body 1 is externally covered with an epoxy resin layer 8, with the first pin 5 and the second pin 6 extending out of the epoxy resin layer 8. Epoxy resin has high flame-retardant properties, reducing the fire risk in the event of a capacitor failure and ensuring circuit safety. It prevents the spread of flames and the entry of oxygen, effectively suppressing the expansion of the fire. Furthermore, epoxy resin has excellent insulation properties, effectively isolating the metal electrodes of the ceramic plate from the external environment, preventing changes and losses in capacitor performance, further improving the capacitor's insulation resistance and insulation strength, and ensuring circuit stability and safety.

[0031] In some embodiments of this utility model, the first pin 5 and the second pin 6 are made of copper. Copper has low resistance and strong conductivity, and will not affect the flow of the circuit. The surfaces of the first pin 5 and the second pin 6 are plated with tin to prevent the pins from oxidizing or corroding in the air, thereby extending the service life of the components. On the other hand, the tin plating layer makes it easier for the solder to contact the pins, reducing the possibility of poor contact after soldering, thereby improving soldering efficiency and soldering quality.

[0032] In some embodiments of this utility model, the metal paint layer 41 on the inner wall surface of the body 1 at the electrode hole 4 is a silver plating layer. The silver plating layer can enhance the conductivity of the body 1 on the inner wall of the electrode hole 4, which is beneficial to reducing the resistance in the circuit of the upper electrode 2.

[0033] In some embodiments of this utility model, the horizontal cross-section of the electrode hole 4 is set to square or circular, depending on the requirements of the circuit board or the ease of processing. It can also be processed into other shapes of electrode holes 4, which are not specifically limited here.

[0034] The working process of this utility model is as follows: The main body 1 has an upper electrode 2 and a lower electrode 3 respectively on both sides in the vertical direction. The main body 1 has an electrode hole 4 with an inner wall coated with metallic paint. The upper electrode 2 includes a first electrode plate 21 and a second electrode plate 22. The first electrode plate 21 passes through the electrode hole 4 and is connected to the second electrode plate 22. The second electrode plate 22 is connected to the first pin 5. The lower electrode 3 is directly connected to the second pin 6. The first pin 5 is directly connected to the circuit board, and the second pin 6 is directly connected to the circuit board.

[0035] In summary, this utility model embodiment provides a horizontal safety capacitor that eliminates the need for leads on both sides of the body 1 in the vertical direction, reducing the thickness of the body 1 and facilitating the miniaturization and thinning requirements of horizontal safety capacitors. Compared with existing technologies, the horizontal safety ceramic capacitor of this application can provide a full range of capacitance specifications while achieving a product height that is only 1 / 3 to 1 / 4 of the original product height, effectively saving circuit board surface space and better meeting the market demand for increasingly miniaturized and thinner electronic products.

[0036] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A horizontal safety capacitor, characterized in that, include: The main body is horizontally disposed on a circuit board. Electrode holes are provided on the main body, and the inner wall surface of the main body at the electrode holes is coated with a metallic paint layer. The upper electrode includes a first electrode plate and a second electrode plate. The first electrode plate is disposed above the body and covers the electrode hole. The second electrode plate is close to the electrode hole and connected to the metal paint layer. The second electrode plate is connected to a first pin. The lower electrode is located below the body and is connected to the second pin.

2. The horizontal safety capacitor according to claim 1, characterized in that: The main body is made of ceramic material.

3. The horizontal safety capacitor according to claim 1, characterized in that: The upper electrode and the lower electrode are silver electrode sheets or copper electrode sheets.

4. The horizontal safety capacitor according to claim 1, characterized in that: The bottom of the main body is provided with a receiving groove, and a discharge part is provided in the receiving groove. The two ends of the discharge part are respectively connected to the metal paint layer and the lower electrode.

5. The horizontal safety capacitor according to claim 1, characterized in that: The body is covered with an epoxy resin layer, and the first pin and the second pin extend out of the epoxy resin layer.

6. The horizontal safety capacitor according to claim 1, characterized in that: The first pin and the second pin are copper pins, and the surfaces of the first pin and the second pin have a tin plating layer.

7. The horizontal safety capacitor according to claim 1, characterized in that: The body has a silver-plated layer on the inner wall surface at the electrode hole.

8. The horizontal safety capacitor according to claim 1, characterized in that: The horizontal cross-section of the electrode hole is set to be square or circular.

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