Aluminum electrolytic capacitor with polarity anti-reverse-insertion notch

Abstract

The utility model discloses an aluminum electrolytic capacitor with a polarity anti-reverse-insertion notch, and particularly relates to the technical field of aluminum electrolytic capacitors, the aluminum electrolytic capacitor comprises a container and a fool-proof component, the fool-proof component is arranged above the container, and the fool-proof component comprises a first support leg and a second support leg; the first support leg and the second support leg in the fool-proof component are in different shapes, namely a waist-shaped groove and a hexagon, so that the capacitor can only be inserted into a corresponding circuit board slot in a unique correct direction due to the unique shape design during installation, and therefore, circuit faults caused by reverse polarity insertion can be prevented, and the service life of the capacitor can be prolonged. And the support legs with different shapes cannot be matched with the jacks on the circuit board, so that wrong installation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolytic capacitor technology, and more specifically, to an aluminum electrolytic capacitor with a polarity anti-insertion notch. Background Technology

[0002] Capacitors play a filtering role in power supply circuits and are a very important electronic component. Electrolytic capacitors are the most common type of capacitor. Electrolytic capacitors are polarized, with a positive and a negative terminal. Reversing the polarity is strictly prohibited. However, in practice, because they are mostly manually inserted into the circuit board by employees, there is always a certain probability of reverse insertion. Furthermore, reverse insertion is not easily detected. Reverse insertion can cause minor issues like circuit board malfunctions or even serious safety accidents such as board failure, thus creating production problems for circuit board manufacturers.

[0003] A search revealed an existing publication (CN209880408U) that discloses a capacitor designed to prevent reverse insertion. The capacitor includes a body and pins connected to the body. The pins include a first pin and a second pin, which are located on different axes. By placing the first and second pins on the body, if an operator inserts the capacitor incorrectly (e.g., the first and second pins are reversed), the capacitor will not be correctly positioned relative to the printed area on the circuit board, or it may be unable to be inserted due to interference from surrounding components. This design prevents incorrect insertion and avoids malfunctions or even board failure caused by reversed capacitor insertion. The inventors discovered the following problems with the existing technology during the development of this invention:

[0004] Existing aluminum electrolytic capacitors typically only have markings on the surface of the capacitor or different lengths of leads to distinguish the positive and negative terminals. However, these measures only serve as reminders and cannot prevent operators from inserting the capacitors backwards.

[0005] Therefore, an aluminum electrolytic capacitor with a polarity-protected anti-insertion notch is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an aluminum electrolytic capacitor with a polarity anti-insertion notch to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an aluminum electrolytic capacitor with a polarity anti-insertion notch, comprising a container and an anti-misplacement component, wherein the anti-misplacement component is disposed on the top of the container, and the anti-misplacement component comprises a first leg and a second leg.

[0008] Preferably, a second leg is provided on one side of the first leg, and the first leg is shaped like an oblong groove, while the second leg is shaped like a hexagon.

[0009] Preferably, a positive electrode wire is provided at the connection between the top of the container and the first leg, and the other end of the positive electrode wire passes through the top of the first leg.

[0010] Preferably, a negative electrode wire is provided at the connection between the top of the container and the second leg, and the other end of the negative electrode wire passes through the top of the second leg.

[0011] Preferably, the surface of the container is covered with a protective layer made of plastic.

[0012] Preferably, the bottom of the foolproof component is provided with an annular sealing groove, which is filled with silicone sealant, and the depth of the sealing groove is 1 / 3 to 1 / 2 of the container wall thickness.

[0013] Preferably, the root of the second leg is provided with at least two sets of reinforcing ribs, which are distributed at equal intervals and have a thickness of 0.2-0.5 times the thickness of the second leg body.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. Compared with existing technologies, this aluminum electrolytic capacitor with a polarity-protected anti-reverse insertion notch uses the different shapes of the first and second legs of the anti-foolproof component. During installation, this unique shape difference ensures that the capacitor can only be inserted into the circuit board in the correct polarity direction. Compared with ordinary aluminum electrolytic capacitors, this greatly reduces the risk of capacitor damage and circuit failure caused by reverse insertion, and improves the reliability and stability of the circuit. The different shaped legs are easily identifiable, and operators can intuitively judge the positive and negative polarity of the capacitor during installation, reducing the probability of installation errors. Especially in mass production and maintenance, it can improve work efficiency and save time and labor costs.

[0016] 2. Compared with existing technologies, this aluminum electrolytic capacitor with a polarity-protected anti-interference notch features a positive wire passing through the top of the first leg and a negative wire passing through the top of the second leg. This connection method ensures a firm connection between the wires and the legs, enabling stable current transmission and guaranteeing normal capacitor operation. The reliable electrical connection helps reduce contact resistance, lower heat generation and energy loss, and improve capacitor performance and lifespan. The container surface is covered with a protective layer made of plastic, which effectively protects the aluminum electrolytic capacitor from external environmental influences such as moisture and dust. The plastic protective layer has good insulation properties, preventing leakage during use and improving capacitor safety. At the same time, the protective layer also acts as a buffer, reducing the impact of external forces on the container and extending the capacitor's lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a front view structural diagram of the container of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the protective layer of this utility model.

[0020] Figure 4 This utility model Figure 1 A schematic diagram of the structure of component A.

[0021] The attached diagram is labeled as follows: 1. Container; 2. Protective layer; 3. Foolproof component; 301. First leg; 302. Second leg; 4. Positive lead; 5. Negative lead. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] As attached Figures 1 to 4 The aluminum electrolytic capacitor shown includes a polarity-protected anti-insertion notch, comprising a container 1 and a foolproof component 3. The foolproof component 3 is disposed on the top of the container 1 and includes a first leg 301 and a second leg 302.

[0024] Among them, the foolproof component 3 includes a first support 301 and a second support 302. When installed, this unique shape design ensures that the container 1 can only be inserted into the corresponding circuit board slot in the only correct direction, thereby preventing circuit failure caused by reversed polarity. If inserted in reverse, the different shaped supports cannot match the sockets on the circuit board, thus avoiding incorrect installation. Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0026] In a preferred embodiment, a second foot 302 is provided on one side of the first foot 301. The first foot 301 is shaped like an oblong groove, and the second foot 302 is shaped like a hexagon. The first foot 301 is oblong and the second foot 302 is hexagonal, and the two are arranged side by side. The uniqueness and difference of the shapes achieve precise error prevention. On the one hand, this design enhances the operator's ability to identify the positive and negative poles, and can quickly determine the correct direction during installation, thus improving the operator's work efficiency. On the other hand, due to the asymmetry of the shape, the corresponding socket on the circuit board must be precisely matched with the shape of the foot. Only the correct polarity direction can be successfully inserted, further strengthening the anti-reverse insertion function and effectively avoiding various problems caused by misoperation.

[0027] In a preferred embodiment, a positive electrode wire 4 is provided at the connection between the top of the container 1 and the first support 301. The other end of the positive electrode wire 4 passes through the top of the first support 301. The top of the container 1 and the first support 301 are connected by the through positive electrode wire 4, which ensures the stability and conductivity of the positive electrode connection. The stable wire connection can prevent the wire from becoming loose or making poor contact with the support under complex working environments such as equipment vibration and temperature changes. Good conductivity can reduce resistance, reduce energy loss and heat generation during current transmission, enable the container 1 to operate stably, extend its service life, provide a stable positive charge transmission channel for the circuit, and improve the performance of the entire circuit system.

[0028] In a preferred embodiment, a negative electrode wire 5 is provided at the connection between the top of the container 1 and the second leg 302. The other end of the negative electrode wire 5 passes through the top of the second leg 302. The connection between the top of the container 1 and the second leg 302 via the negative electrode wire 5 corresponds to the connection method of the positive electrode wire 4, which together ensures the integrity of the electrical connection of the container 1. This design makes the negative electrode current transmission stable and reliable. During the charging and discharging process of the circuit, it can accurately cooperate with the positive electrode to maintain charge balance. A stable negative electrode connection is crucial for the aluminum electrolytic container 1 to achieve efficient energy storage and release functions. It can effectively reduce problems such as increased leakage current and unstable capacitance caused by connection problems, and improve the working stability and reliability of the container 1 in the circuit.

[0029] As a preferred embodiment, the surface of container 1 is covered with a protective layer 2, which is made of plastic. Covering the surface of container 1 with a protective layer 2 made of plastic has multiple protective advantages. From the perspective of insulation, plastic is an excellent insulator, which can prevent the container 1 shell from becoming electrified and causing short circuit risks, thus ensuring the safety of equipment and operators. The protective layer 2 made of plastic can effectively block external factors such as dust, water vapor, and corrosive gases from corroding container 1, avoiding problems such as rusting of internal components and leakage of electrolyte, significantly extending the service life of container 1, enhancing its adaptability to different harsh environments, and broadening the application range of aluminum electrolytic container 1.

[0030] As a preferred embodiment, the bottom of the foolproof component 3 is provided with an annular sealing groove, which is filled with silicone sealant. The depth of the sealing groove is 1 / 3 to 1 / 2 of the wall thickness of the container 1. The silicone sealant has excellent sealing performance and can effectively prevent external air, moisture and other substances from entering the capacitor.

[0031] As a preferred embodiment, the root of the second leg 302 is provided with at least two sets of reinforcing ribs, which are distributed at equal intervals. The presence of reinforcing ribs makes the second leg 302 more robust, and the thickness is 0.2-0.5 times the thickness of the body of the second leg 302.

[0032] The working process of this utility model is as follows: First, the aluminum electrolytic container 1 is equipped with a foolproof component 3, which includes a first leg 301 with an oblong groove and a second leg 302 with a hexagonal shape. During installation, there are corresponding insertion holes on the circuit board. Because the first leg 301 and the second leg 302 have unique and different shapes, the two legs can only be accurately inserted into the insertion holes on the circuit board when the container 1 is placed in the correct polarity direction. If the polarity is reversed, the first leg 301 with the oblong groove cannot be inserted into the hexagonal insertion hole, and vice versa. This ensures that the first leg 301 with the oblong groove cannot be inserted into the hexagonal insertion hole. The physical structure avoids the possibility of reversed polarity of container 1, preventing circuit failure or damage to container 1 caused by reverse insertion. In actual operation, when the operator installs container 1 onto the circuit board, they will first observe the difference in shape between the two prongs. Based on the shape of the socket on the circuit board, the operator can easily determine the correct installation direction of container 1 and then insert the prongs of container 1 into the corresponding sockets. This intuitive foolproof design allows the operator to accurately install container 1 without additional markings or complex judgments during the installation process, improving the efficiency and accuracy of installation.

[0033] A positive electrode wire 4 is provided at the connection between the top of container 1 and the first foot 301, and the other end of the positive electrode wire 4 passes through the top of the first foot 301. When container 1 is connected to the circuit, the current flows from the external circuit through the first foot 301 and then through the positive electrode wire 4 to the positive electrode inside container 1. This connection method ensures that the current can flow stably into the positive electrode of container 1, enabling container 1 to perform normal charging and discharging operations. The design of the positive electrode wire 4 passing through the first foot 301 improves the connection's firmness and reduces contact resistance. A negative electrode wire 5 is provided at the connection between the top of container 1 and the second foot 302, and the other end of the negative electrode wire 5 passes through the top of the second foot 302. In the circuit, the current flows from the negative electrode inside container 1 through the negative electrode wire 5 to the second foot 302, and then flows back to the external circuit. This connection method enables the negative electrode of container 1 to form a good electrical connection with the external circuit, improving the normal operation of container 1 in the circuit.

[0034] The design of the negative conductor 5 passing through the second pin 302 also enhances the stability of the connection and helps improve the performance of container 1. The surface of container 1 is covered with a protective layer 2 made of plastic. Plastic is a good insulating material that can effectively prevent current leakage from the outer shell of container 1, avoiding the risk of short circuit between container 1 and surrounding electronic components. When the circuit is working, even if the voltage inside container 1 is high, the protective layer 2 can still play a good insulating role, ensuring the safe operation of the circuit. The protective layer 2 can also protect container 1 from the influence of the external environment. It can prevent external factors such as dust, water vapor, and corrosive gases from entering the interior of container 1, avoiding damage to the electrodes and electrolyte of container 1. This helps to extend the service life of container 1 and improve its reliability and stability under different environmental conditions.

Claims

1. An aluminum electrolytic capacitor with a polar anti-insertion-reversal notch, comprising a container (1) and a foolproof component (3), characterized in that: The container (1) is provided with a foolproof component (3) on its top, the foolproof component (3) including a first leg (301) and a second leg (302).

2. The aluminum electrolytic capacitor having a polarity insertion reversal preventing notch according to claim 1, characterized by: A second leg (302) is provided on one side of the first leg (301), and the first leg (301) is shaped like an oblong groove, while the second leg (302) is shaped like a hexagon.

3. The aluminum electrolytic capacitor having a polarity insertion reversal preventing notch according to claim 1, characterized by: A positive electrode wire (4) is provided at the connection between the top of the container (1) and the first foot (301), and the other end of the positive electrode wire (4) passes through the top of the first foot (301).

4. The aluminum electrolytic capacitor having a polarity insertion reversal preventing notch according to claim 1, wherein: A negative electrode wire (5) is provided at the connection between the top of the container (1) and the second leg (302), and the other end of the negative electrode wire (5) passes through the top of the second leg (302).

5. An aluminum electrolytic capacitor with a polarity-protected anti-interference notch according to claim 1, characterized in that: The surface of the container (1) is covered with a protective layer (2), which is made of plastic.

6. The aluminum electrolytic capacitor having a polarity insertion reversal preventing notch according to claim 1, wherein: The bottom of the anti-foolproof component (3) is provided with an annular sealing groove, which is filled with silicone sealant. The depth of the sealing groove is 1 / 3 to 1 / 2 of the wall thickness of the container (1).

7. The aluminum electrolytic capacitor having a polarity insertion reversal preventing notch according to claim 2, characterized by: The second leg (302) has at least two sets of reinforcing ribs at its root. The reinforcing ribs are evenly spaced and have a thickness of 0.2-0.5 times that of the body of the second leg (302).

Images