Low-voltage parallel capacitor

Abstract

The utility model discloses a low-voltage parallel capacitor, which belongs to the field of capacitors, and is characterized in that an installation type packaging cover is provided with butt joint hole sites matched with connecting hole sites, and bolts are inserted into the connecting hole sites and the butt joint hole sites to realize the installation of the installation type packaging cover and a capacitor shell; the plurality of pin joints are mounted at the upper end of the mounting type packaging cover, mounting blocks are arranged at the two ends of the mounting type packaging cover, mounting hole sites are formed in the end surfaces of the mounting blocks, and the number of the capacitors is expanded through the mounting hole sites. The packaging cover provides stability, and the supporting block ensures that the capacitor is stable in structure during installation. The sealing frame is matched with the supporting frame, the sealing effect is enhanced, and the capacitor is kept dry and clean. The pin joint is installed at the upper end of the packaging cover, thereby facilitating the connection of a circuit, and improving the connection convenience and reliability. Due to the integrated design of the packaging cover and the mounting block, attractiveness is achieved, the sealing effect and stress distribution are improved, and stress concentration is reduced. The sealing arrangement of the joint of the pin joint and the packaging cover ensures safe and reliable use of the capacitor.

Description

Technical Field

[0001] The utility model relates to the field of capacitors, in particular to a low-voltage parallel capacitor. Background Art

[0002] Low-voltage shunt capacitors are capacitors used to improve the power factor and power quality in power systems. They are typically installed on the low-voltage side of the power system and connected in parallel with the load. The main function of shunt capacitors is to provide reactive power to compensate for the reactive power generated by inductive loads (such as motors and transformers), thereby improving the power factor of the entire system. In this way, line losses can be reduced, power transmission efficiency can be improved, and power costs can be reduced. Low-voltage shunt capacitors are typically composed of multiple single capacitors, which can be types such as metallized film capacitors, liquid-impregnated capacitors, or dry capacitors. They can be fixed or adjustable. Fixed capacitors provide constant reactive power, while adjustable capacitors can adjust the reactive power output according to system needs.

[0003] After searching, I found that Chinese patent publication number CN208889497U discloses a self-healing low-voltage parallel capacitor, which includes a capacitor body, a temperature detection device for detecting the ambient temperature and converting it into a temperature detection signal, and a first comparison device coupled to the temperature detection device to receive the temperature detection signal and output a first comparison signal.

[0004] In practice, the installation of low-voltage shunt capacitors typically requires connecting the pin connectors to the capacitor housing one by one. This process is both time-consuming and labor-intensive, as each capacitor needs to be individually wired and secured. As production volumes increase, this installation method can lead to reduced efficiency, impacting overall production schedules. Furthermore, the manual labor involved can lead to wiring errors or poor contact during installation, increasing the difficulty and cost of subsequent maintenance. Therefore, this one-by-one installation method is particularly inefficient in large-scale production. Utility Model Content

[0005] The main purpose of the present invention is to provide a low-voltage parallel capacitor, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A low-voltage shunt capacitor comprises a capacitor housing and a pin connector; the upper end and side walls of the capacitor housing are provided with docking ports, and a sealed support frame is provided at the docking ports; support blocks are provided at corners of the sealed support frame, and connection holes are provided at the upper ends of the support blocks; a mounting package cover is installed at the docking port and the sealed support frame, and a sealing frame adapted to the sealed support frame is provided at the lower end of the mounting package cover; the mounting package cover is provided with docking holes adapted to the connection holes, and bolts are inserted into the connection holes and the docking holes to achieve installation of the mounting package cover and the capacitor housing;

[0008] The plurality of pin connectors are mounted on the upper end of the mounting package cover. Both ends of the mounting package cover are provided with mounting blocks, and the end faces of the mounting blocks are provided with mounting holes, and the number of capacitors can be expanded through the mounting holes.

[0009] In a further preferred embodiment of the present application, the capacitor housing and the sealed support frame are integrally designed, and the cross-section of the sealed support frame is in an inverted "U" shape. The sealed support frame and the support block are integrally designed, and the outer end surfaces of the sealed support frame and the support block are provided with sealing strips. The sealed support frame and the mounted packaging cover are sealed.

[0010] In a further preferred embodiment of the present application, the sealing frame is integrally designed with the mounting type packaging cover, and a sealing strip is provided on the surface of the sealing frame, and the sealing frame is sealed against the contact end of the sealing support frame and the support block;

[0011] In a further preferred embodiment of the present application, the mounting package cover and the mounting block are integrally designed, and the cross-sections of the mounting package cover and the mounting block are designed in the shape of an "Ω". The mounting package cover is adapted to the docking port, and a sealing strip is bonded to the connection between the two.

[0012] In a further preferred embodiment of the present application, the mounting holes, docking holes and connection holes are all waist holes, and the openings of the waist holes are arc-shaped, and the end surface of the mounting block is connected to a non-slip rubber gasket through an adhesive;

[0013] According to a further preferred embodiment of the present application, the pin connector is pre-installed on the mounting package cover, and the connection between the pin connector and the mounting package cover is sealed.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The mounting cover provides additional stability and support, with corner supports ensuring structural stability during installation. A sealing frame, compatible with the sealed support frame, enhances the seal with the capacitor housing, ensuring a dry and clean interior. Pin connectors are carefully installed on the top of the mounting cover, facilitating connection of the capacitor to other circuits and improving connection convenience and reliability.

[0016] The integrated design of the mounting package cover and mounting block is not only aesthetically pleasing, but also provides better sealing effect and force distribution, reducing stress concentration.

[0017] The sealing arrangement at the connection between the pin connector and the mounting package cover ensures the safety and reliability of the capacitor during use. The sealing performance of the connection between the docking interface and the mounting package cover is enhanced by bonding the sealing strip.

[0018] The slit-shaped mounting, docking, and connection holes provide optimal force distribution and reduce stress concentration. The mounting blocks at both ends feature mounting holes, allowing for expansion of the capacitor quantity to meet diverse circuit requirements. The docking holes, which match the connection holes, allow for secure mounting of the capacitors by inserting bolts. Anti-slip rubber gaskets on the end faces of the mounting blocks provide added stability and anti-slip performance during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is an exploded view of the capacitor housing and the mounting packaging cover of the present utility model;

[0021] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0022] Figure 4 This is a diagram showing the capacitor housing, mounting package cover and sealing frame of the utility model;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of point B in the middle.

[0024] In the figure: 1. Capacitor housing; 2. Mounting package cover; 3. Mounting block; 4. Mounting hole; 5. Pin connector; 6. Docking port; 7. Sealed support frame; 8. Support block; 9. Connection hole; 10. Sealing frame; 11. Docking hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 5 As shown, a low-voltage shunt capacitor, featuring a sophisticated design and robust functionality, comprises a capacitor housing 1 and multiple pin connectors 5. Multiple docking ports 6 are defined on the upper end and sidewalls of the capacitor housing 1, and sealed support frames 7 are positioned at these ports. Support blocks 8 are specially designed at the corners of the sealed support frames 7 to provide additional stability and support. Connection holes 9 are defined at the upper ends of the support blocks 8 to facilitate subsequent installation and connection.

[0027] The mounting package cover 2 is installed between the docking port 6 and the sealed support frame 7. Its lower end is provided with a sealing frame 10 that mates with the sealed support frame 7. The mounting package cover 2 also has docking holes 11 that mate with the connection holes 9. Bolts are inserted to securely secure the mounting package cover 2 to the capacitor housing 1.

[0028] Multiple pin connectors 5 are carefully installed on the top of the mounting cover 2 to facilitate connection of the capacitor to other circuits. Furthermore, mounting blocks 3 are provided at both ends of the mounting cover 2, each with mounting holes 4 defined in its end faces. These mounting holes 4 allow for the expansion of the number of capacitors to meet diverse circuit requirements.

[0029] The capacitor housing 1 and sealed support frame 7 are integrated into a single unit, further enhancing the overall structural stability. The cross-section of the sealed support frame 7 is an inverted U-shaped design, which is both aesthetically pleasing and practical. The sealed support frame 7 and support block 8 are also integrated into one unit, further enhancing structural stability. To ensure a secure seal, sealing strips are installed on the outer ends of the sealed support frame 7 and support block 8, ensuring a seal with the mounted encapsulation cover 2.

[0030] The sealing frame 10 and the mounting package cover 2 are also integrated into one design. The surface of the sealing frame 10 is also provided with a sealing strip to ensure a sealed setting at the contact end with the sealing support frame 7 and the support block 8. This design not only improves the sealing performance, but also simplifies the assembly process.

[0031] The mounting cover 2 and mounting block 3 also feature an integrated design, with an Ω-shaped cross-section. This aesthetically pleasing design also provides a better seal. The mounting cover 2 mates with the docking port 6, and the connection between the two is bonded with a sealing strip, further enhancing the seal.

[0032] Mounting holes 4, docking holes 11, and connection holes 9 are all designed with waist holes, their openings are curved. This design is not only aesthetically pleasing but also provides better force distribution and reduces stress concentration. The end surface of mounting block 3 is attached with an adhesive to a non-slip rubber gasket, increasing stability and anti-slip performance during installation.

[0033] Pin connector 5 is pre-installed on mounting package cover 2, and the connection between pin connector 5 and mounting package cover 2 is also sealed, ensuring the safety and reliability of the capacitor during use. Overall, the design of this low-voltage shunt capacitor takes into account both functionality, aesthetics, and safety.

[0034] Installation process: Confirm that the capacitor housing 1, sealed support frame 7, mounting package cover 2, pin connector 5, mounting block 3 and other components are intact. Insert the sealed support frame 7 into the docking port 6 on the upper end and side wall of the capacitor housing 1. Ensure that the corners of the support block 8 are aligned with the corresponding positions of the capacitor housing 1. Fit the lower end of the mounting package cover 2 with the sealing frame 10 of the sealed support frame 7. Securely connect the mounting package cover 2 to the capacitor housing 1 by inserting bolts. Install multiple pin connectors 5 on the upper end of the mounting package cover 2, ensuring that they are secure and in the correct position. Fix the mounting block 3 to both ends of the capacitor housing 1. Ensure that the end faces of the mounting block 3 are aligned with the corresponding positions of the capacitor housing 1. Apply adhesive to the docking hole 11, mounting hole 4 and docking hole 11. Ensure that all connections are well sealed to enhance the stability and sealing performance of the overall structure. Glue the anti-slip rubber gasket to the end face of the mounting block 3 to increase stability and anti-slip performance during installation.

[0035] Instructions for Use: Connect pin 5 of the low-voltage shunt capacitor to the corresponding terminal on the power supply or other circuit. Ensure the connection is secure and provides good contact. Before applying power, check all connections for correct alignment and ensure there are no loose connections or short circuits. After applying power, observe the capacitor's operating status to ensure it is functioning properly and without any abnormal noise or heat. During operation, regularly check parameters such as temperature, voltage, and current to ensure they are operating within normal ranges. Clean the capacitor surface regularly to prevent dust and dirt from affecting its performance. Check all connections and seals to ensure they are not loose or damaged.

[0036] If you find any abnormal operation of the capacitor, immediately disconnect the power supply, inspect and eliminate the fault. If you need to replace the capacitor, please follow the above installation process to remove and replace it. This will ensure the correct installation and safe use of the low-voltage parallel capacitor.

[0037] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. However, the terms "include", "comprises", or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or elements that are inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "includes a..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage shunt capacitor, comprising a capacitor housing (1) and a pin connector (5), characterized in that: The upper end and side wall of the capacitor housing (1) are provided with a docking port (6), and a sealed support frame (7) is provided at the docking port (6); a support block (8) is provided at a corner of the sealed support frame (7), and a connection hole (9) is provided at the upper end of the support block (8); a mounting type packaging cover (2) is installed at the docking port (6) and the sealed support frame (7), and a sealing frame (10) adapted to the sealed support frame (7) is provided at the lower end of the mounting type packaging cover (2); a docking hole (11) adapted to the connection hole (9) is provided on the mounting type packaging cover (2), and bolts are inserted into the connection hole (9) and the docking hole (11) to realize the installation of the mounting type packaging cover (2) and the capacitor housing (1); A plurality of pin connectors (5) are mounted on the upper end of a mounting package cover (2), mounting blocks (3) are provided at both ends of the mounting package cover (2), and mounting holes (4) are provided on the end faces of the mounting blocks (3), so that the number of capacitors can be expanded through the mounting holes (4).

2. The low-voltage shunt capacitor according to claim 1, characterized in that: The capacitor housing (1) and the sealed support frame (7) are designed as a whole, and the cross section of the sealed support frame (7) is designed in an inverted "U" shape. The sealed support frame (7) and the support block (8) are designed as a whole, and the outer end surfaces of the sealed support frame (7) and the support block (8) are provided with sealing strips. The sealed support frame (7) and the mounting package cover (2) are sealed.

3. The low-voltage shunt capacitor according to claim 2, characterized in that: The sealing frame (10) is designed as an integral unit with the mounting packaging cover (2), and a sealing strip is provided on the surface of the sealing frame (10). The sealing frame (10) is sealed at the contact end with the sealing support frame (7) and the support block (8).

4. The low-voltage shunt capacitor according to claim 3, characterized in that: The mounting package cover (2) and the mounting block (3) are designed as a whole, and the cross-sections of the mounting package cover (2) and the mounting block (3) are designed in the shape of an "Ω". The mounting package cover (2) is adapted to the docking port (6), and a sealing strip is bonded to the connection between the two.

5. The low-voltage shunt capacitor according to claim 4, characterized in that: The installation hole (4), the docking hole (11) and the connection hole (9) are all waist holes, and the openings of the waist holes are designed to be arc-shaped. The end surface of the installation block (3) is connected to a non-slip rubber gasket through an adhesive.

6. The low-voltage shunt capacitor according to claim 5, characterized in that: The pin connector (5) is pre-installed on the mounting type packaging cover (2), and the connection between the pin connector (5) and the mounting type packaging cover (2) is sealed.

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