Aluminum electrolytic capacitor capable of reducing temperature rise
By adopting a combination of a fin-type heat dissipation structure and thermal side seat on the aluminum electrolytic capacitor, the problem of a significant increase in the temperature of the capacitor after a long period of power-on is solved, achieving more efficient heat dissipation and cooling effect and economical use.
Patent Information
- Application Number
- CN202420961184.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing aluminum electrolytic capacitors will generate higher temperatures after long-term power-on operation, especially large-volume capacitors, which will cause significant temperature rise. The traditional aluminum shells have low heat dissipation efficiency and cannot discharge the accumulated heat inside in time, which can easily lead to damage to the capacitor.
A fin-type heat dissipation structure is adopted, and a thermal side seat is installed on the exposed side of the capacitor body, and a heat dissipation fin is evenly arranged on the side of the thermal side seat, and heat dissipation fins are used to conduct heat through the thermal side seat, and the contact area between the heat dissipation structure and the air is increased through the heat dissipation fins, thereby improving the heat dissipation efficiency.
Compared with the traditional shell conduction and heat dissipation method, it achieves better heat dissipation and cooling effect, effectively improves the heat dissipation efficiency of the capacitor body, and through the ring-locking and clamping installation method, the structure is simplified, convenient disassembly and assembly is convenient, and has better economical use.
Smart Images
Figure CN222883387U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum electrolytic capacitors, in particular to an aluminum electrolytic capacitor capable of reducing temperature rise. Background Art
[0002] Aluminum electrolytic capacitors, also known as capacitors, are energy storage components. Their structures can be divided into three types: fixed capacitors, semi-variable capacitors, and variable capacitors. They are often used for AC bypass and filtering. In electronic circuits, they basically play the role of passing AC and blocking DC. They have the functions of filtering, bypassing, coupling, and fast charging and discharging. They are also used for signal coupling when the requirements are not high. With the rapid development of consumer electronic products, the application scope of aluminum electrolytic capacitors is becoming wider and wider.
[0003] As a functional circuit component, aluminum electrolytic capacitors will generate higher temperatures when powered on for a long time. Especially for large-volume aluminum electrolytic capacitors, the temperature will rise significantly after continuous operation. Existing aluminum electrolytic capacitors mainly conduct heat dissipation through the external aluminum shell, but the heat dissipation efficiency relying solely on shell conduction is low, and the cooling effect is not significant. The heat accumulated inside the capacitor cannot be discharged in time, and excessively high temperature can easily cause damage to the aluminum electrolytic capacitor. Utility Model Content
[0004] The purpose of the utility model is to provide an aluminum electrolytic capacitor capable of reducing temperature rise, so as to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solutions: an aluminum electrolytic capacitor capable of reducing temperature rise, comprising a capacitor body, an electrode pin is arranged at the end of the capacitor body, a heat dissipation mechanism is arranged outside the capacitor body, and the heat dissipation mechanism comprises a heat-conducting edge seat;
[0006] An insulating protective layer is arranged outside the capacitor body, and a mounting groove is reserved on the side of the insulating protective layer. A mounting clamp is arranged on the side of the thermal conductive side seat. The thermal conductive side seat is fitted and installed on the side of the capacitor body through the mounting clamp, and a heat dissipation fin is arranged on the side of the thermal conductive side seat.
[0007] Preferably, the number of the electrode needle posts is two, and the two electrode needle posts are symmetrically fixed on both sides of the end of the capacitor body.
[0008] Preferably, an aluminum shell is disposed outside the capacitor body, the insulating sheath is fixed to the outside of the aluminum shell, the mounting groove is disposed on the side of the insulating sheath, and the aluminum shell at the mounting groove is exposed.
[0009] Preferably, the above-mentioned mounting clamps are provided in two groups, and the two groups of mounting clamps are symmetrically fixed on the two sides of the heat-conducting side seat.
[0010] Preferably, the above-mentioned installation groove is adapted to an installation snap ring, and the installation snap ring is engaged and clamped in the inner side of the installation groove.
[0011] Preferably, a limiting protrusion is fixed on the inner ring side of the above-mentioned mounting clamp, and a limiting recessed hole is arranged inside the mounting groove, the limiting recessed hole is adapted to the limiting protrusion, and the limiting protrusion is engaged and clamped with the limiting recessed hole.
[0012] Preferably, the heat dissipation fins are provided in plurality, and a plurality of the heat dissipation fins are evenly fixed on the outer circumferential side of the heat conducting edge seat in a fan shape.
[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:
[0014] The capacitor adopts a fin-type heat dissipation structure, a heat-conducting side seat is installed on the exposed side of the capacitor body, and heat dissipation fins are evenly arranged on the side of the heat-conducting side seat. The heat-conducting side seat is used to conduct the heat generated by the operation of the capacitor body, and the contact area between the heat dissipation structure and the air is increased through the heat dissipation fins. Compared with the traditional shell conduction heat dissipation method, it has better heat dissipation and cooling effect, and can effectively improve the heat dissipation efficiency of the capacitor body. The heat-conducting side seat adopts a ring-holding clamping installation method, and the installation clamping ring arranged on the side of the heat-conducting side seat is engaged with the installation groove on the upper part of the capacitor body to achieve the installation and fixation of the heat-conducting side seat. No additional installation limit structure is required. The structure is simple and easy to disassemble and assemble. When in use, the heat-conducting side seat can be reused as a functional module, which has good economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the overall upper structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the overall lower structure of the utility model;
[0018] Figure 3 It is a schematic diagram of the overall split structure of the utility model;
[0019] Figure 4This is a schematic diagram of the three-dimensional structure of the capacitor body of the utility model;
[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the heat-conducting side seat of the utility model.
[0021] Explanation of the reference numerals: 1. capacitor body; 2. electrode pin; 3. insulating sheath; 4. heat-conducting edge seat; 5. heat-dissipating fin; 6. mounting groove; 7. mounting clamp; 8. limiting recessed hole; 9. limiting protrusion. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.
[0024] Example
[0025] See also Figure 1-5 The utility model provides a technical solution: an aluminum electrolytic capacitor capable of reducing temperature rise, comprising a capacitor body 1, the capacitor body 1 is an aluminum electrolytic capacitor, and in order to facilitate the installation and connection of the capacitor body 1, an electrode needle column 2 is arranged at the end of the capacitor body 1, and the number of the electrode needle column 2 is two, which are positive and negative, respectively corresponding to the positive and negative poles of the capacitor body 1, as shown in the attached Figure 2 As shown, two electrode needle columns 2 are symmetrically fixed on both sides of the end of the capacitor body 1. An aluminum shell is arranged on the outside of the capacitor body 1. In order to increase the external insulation protection of the capacitor body 1, an insulating sheath 3 is arranged on the outside of the capacitor body 1. The insulating sheath 3 is made of hard rubber and is fixed to the outside of the aluminum shell.
[0026] In order to improve the heat dissipation efficiency of the capacitor body 1, a heat dissipation mechanism is provided outside the capacitor body 1, and the heat dissipation mechanism includes a heat-conducting edge seat 4, and the heat-conducting edge seat 4 can be made of aluminum. Figure 4As shown, a mounting groove 6 is reserved on the side of the insulating sheath 3, and the mounting groove 6 is arranged on the side of the insulating sheath 3. The aluminum shell at the mounting groove 6 is in an exposed state, which can facilitate the contact and conduction of heat between the capacitor body 1 and the heat-conducting side seat 4. In order to facilitate the clamping installation with the capacitor body 1, a mounting clamp ring 7 is arranged on the side of the heat-conducting side seat 4. Figure 5 As shown, two groups of mounting snap rings 7 are provided, and the two groups of mounting snap rings 7 are symmetrically fixed on the two sides of the heat-conducting side seat 4, and the number of mounting snap rings 7 in each group is three. The mounting groove 6 is adapted to the mounting snap ring 7, and the mounting snap ring 7 is engaged and clamped in the inner side of the mounting groove 6. The heat-conducting side seat 4 is fitted and installed on the side of the capacitor body 1 through the mounting snap ring 7. The heat-conducting side seat 4 is installed in a ring-holding clamping manner, and the mounting snap ring 7 arranged on the side of the heat-conducting side seat 4 is engaged and clamped with the mounting groove 6 on the upper part of the capacitor body 1 to achieve the installation and fixation of the heat-conducting side seat 4. No additional installation limiting structure is required, the structure is simple and disassembly and assembly are convenient, and the heat-conducting side seat 4 can be reused as a functional module when in use, and has good economic efficiency.
[0027] In order to improve the heat dissipation efficiency of the thermally conductive side seat 4, a heat dissipation fin 5 is arranged on the side of the thermally conductive side seat 4. A plurality of heat dissipation fins 5 are arranged, and several heat dissipation fins 5 are evenly fixed on the outer circumferential side of the thermally conductive side seat 4 in a fan shape. The heat generated by the operation of the capacitor body 1 is conducted by the thermally conductive side seat 4. The contact area between the heat dissipation structure and the air is increased by the heat dissipation fins 5. Compared with the traditional shell conduction heat dissipation method, it has better heat dissipation and cooling effect, and can effectively improve the heat dissipation efficiency of the capacitor body 1.
[0028] In order to improve the installation stability of the heat-conducting side seat 4, as shown in the attached Figure 3 As shown, a limiting protrusion 9 is fixed on the inner ring side of the mounting snap ring 7, and the limiting protrusion 9 is a hemispherical protrusion. In order to engage with the limiting protrusion 9, a limiting recessed hole 8 is arranged inside the mounting groove 6. The limiting recessed hole 8 and the limiting protrusion 9 are adapted to be hemispherical recessed holes, and the limiting protrusion 9 is engaged with the limiting recessed hole 8. The engaging and limiting of the connection of the mounting snap ring 7 can be achieved through the engaging and limiting.
[0029] Working principle or structural principle, during installation, align the electrode needle column 2 of the capacitor body 1 and insert it into the mounting welding hole on the upper part of the circuit board, and fix the capacitor body 1 on the upper part of the circuit board by welding, then align the mounting snap ring 7 on the side of the heat-conducting side seat 4 with the mounting groove 6 on the side of the capacitor body 1, use one hand to fix the capacitor body 1 and use the other hand to push the heat-conducting side seat 4, and push the mounting snap ring 7 to fit into the inner side of the mounting groove 6. After being snapped into place, the limiting protrusion 9 on the inner side of the ring of the mounting snap ring 7 is snapped into the limiting concave hole 8 in the mounting groove 6, and the installation limit of the heat-conducting side seat 4 is realized by the snap-on limit, and the installation operation of the device is completed. During operation, the heat generated by the operation of the capacitor body 1 is conducted by the heat-conducting side seat 4, and the heat is dissipated to the outside through the heat dissipation fins 5, so as to achieve heat dissipation and cooling of the capacitor body 1.
[0030] In summary, the capacitor adopts a fin-type heat dissipation structure, a heat-conducting side seat 4 is installed on the exposed side of the capacitor body 1, and heat dissipation fins 5 are evenly arranged on the side of the heat-conducting side seat 4. The heat-conducting side seat 4 is used to conduct the heat generated by the capacitor body 1 during operation, and the contact area between the heat dissipation structure and the air is increased through the heat dissipation fins 5. Compared with the traditional shell conduction heat dissipation method, it has better heat dissipation and cooling effect, can effectively improve the heat dissipation efficiency of the capacitor body 1, and the heat-conducting side seat 4 adopts a ring-clamping installation method. The installation clamping ring 7 arranged on the side of the heat-conducting side seat 4 is engaged with the installation groove 6 on the upper part of the capacitor body 1 to achieve the installation and fixation of the heat-conducting side seat 4. No additional installation limiting structure is required. The structure is simple and easy to disassemble and assemble. When in use, the heat-conducting side seat 4 can be reused as a functional module, which has good economic efficiency.
[0031] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.
[0032] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An aluminum electrolytic capacitor capable of reducing temperature rise, comprising a capacitor body (1), characterized in that: An electrode needle column (2) is provided at the end of the capacitor body (1), and a heat dissipation mechanism is provided outside the capacitor body (1), wherein the heat dissipation mechanism comprises a heat-conducting edge seat (4); An insulating sheath (3) is provided on the outside of the capacitor body (1), a mounting groove (6) is reserved on the side of the insulating sheath (3), a mounting clamp ring (7) is provided on the side of the heat-conducting side seat (4), the heat-conducting side seat (4) is fitted and mounted on the side of the capacitor body (1) via the mounting clamp ring (7), and a heat dissipation fin (5) is provided on the side of the heat-conducting side seat (4).
2. The aluminum electrolytic capacitor capable of reducing temperature rise according to claim 1, characterized in that: The number of the electrode needle posts (2) is two, and the two electrode needle posts (2) are symmetrically fixed on both sides of the end of the capacitor body (1).
3. The aluminum electrolytic capacitor capable of reducing temperature rise according to claim 1, characterized in that: An aluminum shell is arranged outside the capacitor body (1), the insulating sheath (3) is fixed to the outside of the aluminum shell, the mounting groove (6) is arranged on the side of the insulating sheath (3), and the aluminum shell at the mounting groove (6) is in an exposed state.
4. The aluminum electrolytic capacitor capable of reducing temperature rise according to claim 3, characterized in that: Two groups of the mounting clamp rings (7) are provided, and the two groups of the mounting clamp rings (7) are symmetrically fixed on the two sides of the heat-conducting side seat (4).
5. The aluminum electrolytic capacitor capable of reducing temperature rise according to claim 4, characterized in that: The mounting groove (6) is matched with the mounting snap ring (7), and the mounting snap ring (7) is engaged and clamped on the inner side of the mounting groove (6).
6. The aluminum electrolytic capacitor capable of reducing temperature rise according to claim 5, characterized in that: A limiting protrusion (9) is fixed on the inner ring side of the mounting clamp ring (7), a limiting recessed hole (8) is arranged inside the mounting groove (6), the limiting recessed hole (8) is matched with the limiting protrusion (9), and the limiting protrusion (9) is engaged and clamped with the limiting recessed hole (8).
7. The aluminum electrolytic capacitor capable of reducing temperature rise according to claim 6, characterized in that: A plurality of the heat dissipation fins (5) are provided, and a plurality of the heat dissipation fins (5) are evenly fixed on the outer circumferential side of the heat-conducting edge seat (4) in a fan shape.