Intelligent capacitor

By adopting a combination of phase change materials and forced air cooling in smart capacitors, the problems of low heat dissipation efficiency and insufficient shock absorption performance of traditional smart capacitors are solved, and efficient heat dissipation and good shock absorption performance are achieved, extending the service life of the component and reducing the risk of failure.

CN119852087APending Publication Date: 2025-04-18ZHEJIANG YOULANG ELECTRIC CO LTD
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Patent Information

Application Number
CN202510191481.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-04-18

AI Technical Summary

Technical Problem

Existing smart capacitors have low heat dissipation efficiency when operating at high power, and cannot effectively deal with the problem of concentrated accumulation of heat under complex working conditions. At the same time, their shock absorption performance is insufficient, which makes it easy to cause loose connections and damage to components in vibrating environments.

Method used

A smart capacitor is designed, with connecting steps at the bottom outer ring of the case, and a heat dissipation through hole connecting the inside of the case, and a heat dissipation tube is installed in the heat dissipation through hole, and a phase-change material is filled in the heat dissipation tube. At the same time, a connecting groove is provided in the base that is suitable for the shape of the bottom of the casing, and a shock absorbing component is provided at the bottom of the connecting groove. After the bottom of the casing is installed into the connection groove, it is pressed between the shock absorbing component and the limiting step. The cooling fan in the base blows air towards the heat dissipation through holes, forming a coordinated working mode of forced air cooling and phase change heat dissipation.

Benefits of technology

Through the combination of latent heat absorption characteristics of phase change materials and forced air cooling, the heat dissipation efficiency is significantly improved, the service life of the component is extended, and the failure rate caused by overheating is reduced. At the same time, the shock absorbing components effectively absorb and buffer external vibrations, improving the stability and reliability of the equipment.

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Abstract

The invention discloses an intelligent capacitor. The intelligent capacitor comprises a shell, a radiating tube, a base and a radiating fan, the bottom end face of the shell is provided with a heat dissipation through hole communicated with the interior of the shell; the heat dissipation pipes are detachably installed in the heat dissipation through holes and filled with phase change materials. A connecting groove matched with the bottom of the machine shell is formed in the base, a limiting step is arranged on the inner wall of a notch, a damping assembly is arranged at the bottom, and the bottom of the machine shell is pressed between the notch and the damping assembly after being installed. The cooling fan is installed in the fan cavity of the base and blows air towards the cooling through holes, and airflow interaction openings are formed in the upper and lower end faces of the fan cavity. The intelligent capacitor combines latent heat absorption of the phase-change material and forced air cooling of the fan, is high in heat dissipation efficiency, can ensure that internal elements operate at a proper temperature, prolongs the service life of the elements, and reduces the fault occurrence rate; the damping assembly can effectively buffer vibration and reduce the influence on internal elements; the shell and the base are easy to install, and the radiating pipe is detachable and convenient to maintain.
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Description

Technical Field

[0001] The present invention relates to the technical field of capacitor technology, and in particular to an intelligent capacitor. Background Art

[0002] With the continuous development of power systems and the increasing demand for intelligence, smart capacitors are playing an increasingly important role in power systems. Smart capacitors are widely used in the fields of reactive power compensation and harmonic control in power systems, and can effectively improve the power factor of power systems, reduce line losses, and improve power quality.

[0003] During the actual operation of smart capacitors, the electronic components inside them will generate a lot of heat. If this heat cannot be dissipated in a timely and effective manner, it will cause the temperature inside the capacitor to rise, which will affect the performance and life of the electronic components, and may even cause failures, seriously affecting the safe and stable operation of the power system. At present, the traditional heat dissipation methods of smart capacitors mainly use natural heat dissipation or simple fan heat dissipation. The natural heat dissipation method has low heat dissipation efficiency and is difficult to meet the heat dissipation requirements of high-power smart capacitors; and although the simple fan heat dissipation method can speed up air flow to a certain extent, the heat dissipation effect is still not ideal under some complex working conditions, and it cannot effectively deal with the problem of concentrated heat accumulation.

[0004] In addition, during the installation and use of smart capacitors, stability and shock absorption performance are also key factors to consider. Due to the presence of various vibration sources in the power system, such as motor operation, line current fluctuations, etc., these vibrations may damage the internal structure of the smart capacitor and affect its normal operation. Existing smart capacitors often lack effective shock absorption measures during installation, making the capacitors prone to problems such as loose connections and component damage in a long-term vibration environment.

[0005] Therefore, in order to improve the heat dissipation efficiency and shock absorption performance of the smart capacitor and optimize the connection structure between the casing and the base, it is necessary to improve the existing smart capacitor. Summary of the invention

[0006] In view of the deficiencies in the background technology, the present invention provides a smart capacitor.

[0007] The technical solution adopted by the present invention is: an intelligent capacitor, comprising:

[0008] A casing, wherein the outer ring of the bottom of the casing is provided with a circle of connecting steps, and the bottom end surface of the bottom casing is provided with a heat dissipation through hole connected to the inside of the casing;

[0009] A heat dissipation pipe, which is detachably mounted on the heat dissipation through hole and is filled with a phase change material for heat dissipation;

[0010] A base, wherein a connecting groove matching the shape of the bottom of the housing is provided in the base, a limiting step is provided on the inner wall of the opening of the connecting groove, and a shock absorbing component is also provided at the bottom of the connecting groove. After the bottom of the housing is installed in the connecting groove, it is pressed between the shock absorbing component and the limiting step;

[0011] A heat dissipation fan is installed in a fan cavity of the base, and the heat dissipation fan is arranged to blow air toward the heat dissipation through hole, and air flow interaction openings are arranged on the upper and lower end surfaces of the fan cavity.

[0012] Furthermore, three heat dissipation through holes are evenly spaced along the length direction of the bottom of the housing.

[0013] Furthermore, embedded plates are arranged on both sides of the heat dissipation pipe, and "L"-shaped connecting grooves for the embedded plates to be inserted into are arranged on both sides of the heat dissipation through hole.

[0014] Furthermore, a magnetic rubber sheet 1 is arranged on one side of the embedded plate, and a magnetic rubber sheet 2 which attracts the magnetic rubber sheet 1 is arranged inside the "L"-shaped connecting groove.

[0015] Furthermore, the heat dissipation pipe includes a plurality of circles of round pipes and connecting straight pipes for connecting the round pipes, and the round pipes and the connecting straight pipes are interconnected.

[0016] Furthermore, the shock absorbing assembly includes a clamping plate and a shock absorbing spring, one end of the shock absorbing spring is fixedly connected to the bottom wall of the connecting groove, and the other end is fixedly connected to the clamping plate.

[0017] Furthermore, padding blocks are fixed at both ends of the bottom of the base, one end of the padding block extends out of the base, and a waist-shaped hole is provided on the padding block extending out of the base.

[0018] Furthermore, a connecting plug plate is provided on one side of the base, and a connecting block is provided on the other side of the base. The connecting block is provided with a connecting notch for inserting the connecting plug plate, and the connecting block is also provided with a screw hole for fixing the inserted connecting plug plate.

[0019] Furthermore, it also includes a temperature sensor for detecting the temperature inside the casing, and the temperature sensor and the cooling fan are connected to the intelligent controller on the casing.

[0020] The beneficial effects of the present invention are:

[0021] 1. Efficient heat dissipation: A connecting step is provided on the outer ring of the bottom of the casing, and a heat dissipation through-hole connected to the inside of the casing is provided on the bottom end face. The heat dissipation pipe can be detachably installed in the heat dissipation through-hole and filled with phase change material. At the same time, a heat dissipation fan blowing toward the heat dissipation through-hole is provided in the base. This design combines the latent heat absorption characteristics of the phase change material with the forced air cooling of the fan. In the early stage of heat generation during the operation of the capacitor, the phase change material can quickly absorb a large amount of heat and store it through the phase change process, effectively slowing down the temperature rise rate inside the casing. When the temperature rises to a certain level, the cooling fan starts, accelerates the air flow, and promptly takes away the air with increased temperature around the phase change material, so that the phase change material can quickly dissipate heat and restore its heat absorption capacity, forming a continuous and effective heat dissipation cycle, greatly improving the heat dissipation efficiency, ensuring that the electronic components inside the smart capacitor operate in a suitable temperature environment, extending the service life of the components, and reducing the failure rate caused by overheating.

[0022] 2. Good shock absorption performance: A shock absorption component is set at the bottom of the connection groove in the base. When the bottom of the housing is installed into the connection groove, it is pressed between the shock absorption component and the limit step. This structure can effectively absorb and buffer the vibration energy transmitted from the outside to the smart capacitor, reducing the impact of vibration on internal components.

[0023] 3. Easy to install and maintain: The connection step at the bottom of the casing and the connection groove of the base, as well as the setting of the limit step, make the installation process of the casing and the base simple. At the same time, the heat pipe is installed in a detachable manner. When the phase change material in the heat pipe needs to be replaced or maintained, the operation is convenient and quick, and there is no need to disassemble the entire smart capacitor in a complicated manner. In addition, this detachable design also facilitates the inspection and maintenance of the heat pipe, reduces maintenance costs and maintenance difficulties, and improves the maintainability of the equipment.

[0024] 3. Optimized air circulation and protection: The upper and lower end surfaces of the fan cavity are provided with airflow interactive openings, which ensure that the wind blown by the cooling fan can flow smoothly through the heat dissipation holes and heat dissipation pipes, forming a good air circulation path and further improving the heat dissipation effect.

[0025] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 This is a schematic diagram of the bottom perspective of the casing.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 A schematic diagram of the structure of the base.

[0030] Figure 5 It is a schematic diagram of the structure of the heat pipe.

[0031] Figure 1-5 In: 1. Casing; 2. Connecting step; 3. Heat dissipation hole; 4. Heat dissipation pipe; 5. Base; 6. Connecting slot; 7. Limiting step; 8. Shock-absorbing assembly; 9. Cooling fan; 10. Airflow interaction opening; 11. Mounting plate; 12. "L"-shaped connecting slot; 13. Magnetic rubber sheet 1; 14. Magnetic rubber sheet 2; 15. Round tube; 16. Connecting straight tube; 17. Clamp; 18. Shock-absorbing spring; 19. Heightening block; 20. Waist-shaped hole; 21. Connecting plug plate; 22. Connecting block; 23. Connecting notch; 24. Screw hole; 25. Vertical slot; 26. Horizontal slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] The invention provides an intelligent capacitor.

[0035] In this embodiment, refer to Figure 1-5 , the smart capacitor comprises:

[0036] A casing 1, wherein the outer ring of the bottom of the casing 1 is provided with a circle of connecting steps 2, and the bottom end surface of the bottom casing is provided with a heat dissipation through hole 3 connected to the inside of the casing;

[0037] A heat dissipation pipe 4, wherein the heat dissipation pipe 4 is detachably mounted on the heat dissipation through hole, and the heat dissipation pipe is filled with a phase change material for heat dissipation;

[0038] A base 5, wherein a connecting groove 6 matching the shape of the bottom of the housing is provided in the base 5, a limiting step 7 is provided on the inner wall of the opening of the connecting groove, and a shock absorbing component 8 is also provided at the bottom of the connecting groove. After the bottom of the housing is installed in the connecting groove, it is pressed between the shock absorbing component 8 and the limiting step 7;

[0039] The heat dissipation fan 9 is installed in a fan cavity 10 of the base, and the heat dissipation fan is arranged to blow air toward the heat dissipation through holes, and air flow interaction openings are arranged on the upper and lower end surfaces of the fan cavity.

[0040] In the above technical solution, the connection step of the outer ring at the bottom of the casing cooperates with the connecting groove of the base to achieve a stable connection between the casing and the base, ensure the stability of the overall structure of the smart capacitor, and facilitate installation and disassembly.

[0041] Among them, the heat dissipation holes at the bottom of the casing are combined with a detachable heat dissipation pipe filled with phase change material. By utilizing the latent heat characteristics of the phase change material, it can quickly absorb a large amount of heat at the initial stage of capacitor heating, effectively delaying the temperature rise inside the casing, buying time for heat dissipation, and improving the heat dissipation effect.

[0042] In addition, the shock-absorbing components in the base connection groove can effectively absorb and buffer the vibration energy transmitted from the outside to the smart capacitor, reduce the impact of vibration on internal components, improve the stability and reliability of equipment operation, and extend the service life of components.

[0043] Moreover, the cooling fan in the fan cavity of the base blows air toward the heat dissipation holes, which combines with the heat dissipation of the phase change material to form a collaborative working mode of forced air cooling and phase change heat dissipation, accelerates air flow, takes away heat in time, significantly improves heat dissipation efficiency, and ensures that the capacitor operates at an appropriate temperature.

[0044] The interactive airflow openings on the upper and lower ends of the fan cavity ensure smooth air circulation, optimize the heat dissipation path, further improve the heat dissipation effect, and at the same time enhance the ventilation performance of the equipment, help reduce internal humidity and protect components.

[0045] Specifically, three heat dissipation through holes are arranged at equal intervals along the length direction of the bottom of the housing.

[0046] In this embodiment, three heat dissipation holes are arranged at equal intervals along the length direction of the bottom of the casing, which can distribute the heat dissipation area more evenly, so that the heat generated inside the casing can be dissipated more quickly through multiple heat dissipation channels. Compared with a single or small number of heat dissipation holes, the uniformity and efficiency of heat dissipation are improved, the overall temperature inside the casing is effectively reduced, and the internal components are better protected.

[0047] Specifically, the two sides of the heat dissipation pipe are provided with embedded plates 11, and the two sides of the heat dissipation through hole are provided with "L"-shaped connecting grooves 12 for the embedded plates 11 to be inserted into.

[0048] In this embodiment, the embedded plates on both sides of the heat dissipation pipe cooperate with the "L"-shaped connection grooves on both sides of the heat dissipation through hole to realize the detachable installation of the heat dissipation pipe, which is convenient for the installation, disassembly and maintenance of the heat dissipation pipe.

[0049] from Figure 3 As shown, the "L"-shaped connecting groove 12 includes a vertical groove 25 and a horizontal groove 26. When installing, the embedded plate is inserted into the vertical groove, and then rotated at a certain angle and inserted into the horizontal groove to achieve the installation of the heat pipe. When disassembling, the reverse operation can be performed. It is convenient to disassemble and replace the heat pipe.

[0050] Specifically, a magnetic rubber sheet 13 is disposed on one side of the embedded plate, and a magnetic rubber sheet 2 14 that attracts the magnetic rubber sheet 13 is disposed in the “L”-shaped connecting groove.

[0051] In this embodiment, the magnetic rubber sheet 1 on one side of the embedded plate and the magnetic rubber sheet 2 in the "L"-shaped connecting groove attract each other, further enhancing the tightness and stability of the connection between the heat dissipation pipe and the heat dissipation through hole, and preventing the heat dissipation pipe from falling off due to vibration or other external forces.

[0052] Specifically, the heat dissipation pipe includes a plurality of circles of round pipes 15 and connecting straight pipes 16 for connecting the round pipes 15 , and the round pipes and the connecting straight pipes are connected to each other.

[0053] In this embodiment, the heat dissipation pipe is composed of multiple circles of round pipes and connecting straight pipes and is interconnected. This structure increases the surface area of ​​the heat dissipation pipe and the heat exchange area with the air, so that the heat can be transferred to the air more effectively, thereby improving the heat dissipation effect. At the same time, the design of multiple circles of round pipes increases the filling amount of phase change material in the heat dissipation pipe, which can absorb more heat and ensure the heat dissipation effect.

[0054] Specifically, the shock absorbing assembly includes a clamping plate 17 and a shock absorbing spring 18, one end of the shock absorbing spring is fixedly connected to the bottom wall of the connecting groove, and the other end of the shock absorbing spring is fixedly connected to the clamping plate.

[0055] In this embodiment, the clamping plate and the shock absorbing spring of the shock absorbing assembly cooperate to provide good support and shock absorbing effects on the housing.

[0056] Specifically, padding blocks 19 are fixed at both ends of the bottom of the base, one end of the padding block 19 extends out of the base, and a waist-shaped hole 20 is provided on the padding block extending out of the base.

[0057] In this embodiment, the pads at both ends of the bottom of the base can raise the base to form a certain space between the base and the mounting surface, which is conducive to air circulation under the base, assisting heat dissipation and further improving the heat dissipation performance of the smart capacitor.

[0058] In addition, one end of the pad extends out of the base and is provided with a waist-shaped hole, so that the installation position of the smart capacitor can be adjusted according to actual needs during installation, which increases the flexibility of installation. At the same time, the design of the waist-shaped hole also facilitates fixation to the installation surface, improving the convenience and stability of installation.

[0059] Specifically, a connecting plug plate 21 is provided on one side of the base, and a connecting block 22 is provided on the other side of the base. The connecting block 22 is provided with a connecting notch 23 for inserting the connecting plug plate, and the connecting block is also provided with a screw hole 24 for fixing the inserted connecting plug plate.

[0060] In this embodiment, the connection plug plate on one side of the base cooperates with the connection block and the connection slot on the other side to facilitate the side-by-side connection and use of multiple smart capacitors, meet the requirements of different power systems for the number and capacity of capacitors, and improve the scalability and applicability of the equipment.

[0061] The screw holes on the connection block are used to fix the inserted connection plug board, ensuring the stability of multiple smart capacitors after being connected side by side, preventing the connection parts from loosening during operation, and ensuring the reliability of equipment operation.

[0062] Specifically, it also includes a temperature sensor for detecting the temperature inside the casing, and the temperature sensor and the cooling fan are connected to the intelligent controller on the casing.

[0063] In this embodiment, the temperature sensor can detect the temperature inside the housing in real time and transmit the temperature signal to the intelligent controller on the housing. The intelligent controller controls the start and stop and the speed of the cooling fan according to the temperature signal. When the temperature is low, the fan stops running or runs at a low speed to save energy; when the temperature rises to a certain level, the fan runs at a high speed to enhance heat dissipation, realizing intelligent control of the cooling system and improving heat dissipation efficiency and energy utilization efficiency.

[0064] This temperature monitoring and intelligent control method can keep the smart capacitor in a suitable temperature environment at all times, effectively protect internal components, extend the service life of the equipment, and improve the intelligence level and reliability of the equipment.

[0065] Technical personnel should note that: Although the present invention has been described according to the above specific implementation methods, the concept of the present invention is not limited to this invention, and any modification using the concept of the present invention will be included in the scope of protection of this patent right.

Claims

1. A smart capacitor, characterized in that include: A casing, wherein the outer ring of the bottom of the casing is provided with a circle of connecting steps, and the bottom end surface of the bottom casing is provided with a heat dissipation through hole connected to the inside of the casing; A heat dissipation pipe, which is detachably mounted on the heat dissipation through hole and is filled with a phase change material for heat dissipation; A base, wherein a connecting groove matching the shape of the bottom of the housing is provided in the base, a limiting step is provided on the inner wall of the opening of the connecting groove, and a shock absorbing component is also provided at the bottom of the connecting groove. After the bottom of the housing is installed in the connecting groove, it is pressed between the shock absorbing component and the limiting step; The heat dissipation fan is installed in a fan cavity of the base, and the heat dissipation fan is arranged to blow air toward the heat dissipation through hole, and air flow interaction openings are arranged on the upper and lower end surfaces of the fan cavity.

2. The smart capacitor according to claim 1, characterized in that: The heat dissipation through holes are arranged at three equal intervals along the length direction of the bottom of the housing.

3. The smart capacitor according to claim 1 or 2, characterized in that: Both sides of the heat dissipation pipe are provided with embedded plates, and both sides of the heat dissipation through hole are provided with "L"-shaped connecting grooves for the embedded plates to be inserted into.

4. The smart capacitor according to claim 3, characterized in that: A magnetic rubber sheet 1 is arranged on one side of the embedded plate, and a magnetic rubber sheet 2 which attracts the magnetic rubber sheet 1 is arranged inside the "L"-shaped connecting groove.

5. The smart capacitor according to claim 1, characterized in that: The heat dissipation pipe comprises a plurality of circles of round pipes and connecting straight pipes for connecting the round pipes, and the round pipes and the connecting straight pipes are communicated with each other.

6. The smart capacitor according to claim 1, characterized in that: The shock absorbing assembly comprises a clamping plate and a shock absorbing spring. One end of the shock absorbing spring is fixedly connected to the bottom wall of the connecting groove, and the other end is fixedly connected to the clamping plate.

7. The smart capacitor according to claim 1, characterized in that: Both ends of the bottom of the base are fixed with padding blocks, one end of the padding block extends out of the base, and a waist-shaped hole is arranged on the padding block extending out of the base.

8. The smart capacitor according to claim 1, characterized in that: A connecting plug plate is arranged on one side of the base, and a connecting block is arranged on the other side of the base. The connecting block is provided with a connecting notch for inserting the connecting plug plate for connection, and the connecting block is also provided with a screw hole for fixing the inserted connecting plug plate.

9. The smart capacitor according to claim 1, characterized in that: It also includes a temperature sensor for detecting the temperature inside the casing. The temperature sensor and the cooling fan are connected to an intelligent controller on the casing.