Direct insertion electrolytic capacitor mounting structure for aluminum substrate

Abstract

The utility model relates to the technical field of electric vehicle controllers, and particularly discloses a direct-insertion electrolytic capacitor mounting structure for an aluminum substrate, which comprises a mounting seat, a first mounting hole, a second mounting hole, a first connecting piece, a second connecting piece, a second connecting piece, a first connecting piece, a second connecting piece and a second connecting piece, and is characterized in that the mounting seat is provided with a limiting assembly and a first mounting hole; the conducting strip is arranged on the mounting seat through the limiting assembly, and a second mounting hole is formed in the position, corresponding to the first mounting hole, of the conducting strip; a positioning hole is formed in the aluminum substrate, and the mounting seat is arranged on the aluminum substrate through the positioning hole. The electrolytic capacitor mounting structure has the advantages that the electrolytic capacitor can be stably mounted on the aluminum substrate, the pins of the electrolytic capacitor do not need to be bent, and the mounting efficiency of the electrolytic capacitor and the circuit reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle controllers, in particular to a direct-insertion electrolytic capacitor installation structure for an aluminum substrate. Background Art

[0002] Driven by new energy policies, the density of electric vehicles is increasing, and controllers are a core component of their electronic control systems. As power increases, existing technologies and processes are no longer sufficient to meet production demands. However, the increasing maturity of aluminum substrate technology significantly improves controller heat dissipation. Currently, most electrolytic capacitors utilize a direct-insert structure, but this approach has certain drawbacks. Existing direct-insert electrolytic capacitor technology is difficult to install on aluminum substrates, as it conducts electricity with the aluminum substrate, making packaging difficult.

[0003] During the production process of ordinary controllers, holes for electrolytic pins must be opened on the aluminum substrate, and an insulating sleeve must be placed between the aluminum substrate and the electrolytic pins. This method is cumbersome, the insulating sleeve is prone to shrinkage under high temperature conditions, and the insulating sleeve is relatively easy to break, which can easily cause leakage and short circuit.

[0004] At present, the Chinese utility model patent with patent number 201620180193.8 discloses a mounting structure for a direct-insert electrolytic capacitor for an aluminum substrate, which solves the above-mentioned problem that the electrolytic capacitor is not easy to install on the aluminum substrate. However, this installation method will cause the pins of the electrolytic capacitor to bend. When the pins of the electrolytic capacitor are bent, the metal foil of the capacitor may be stretched and damaged. The bending of the pins will have adverse effects and affect the performance. When the pins are bent, the pins may be separated from the internal metal sheet, thereby affecting the normal operation of the capacitor and even causing damage to the capacitor. In addition, improper operation may also cause internal short circuit or leakage of the electrolytic capacitor, thereby affecting its performance and life. Moreover, the installation structure of this solution has many installation steps and complicated production operations. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a direct-insert electrolytic capacitor mounting structure for an aluminum substrate, which has the advantages of being able to achieve stable installation of the electrolytic capacitor on the aluminum substrate without bending the electrolytic capacitor pins, thereby improving the installation efficiency of the electrolytic capacitor and the circuit reliability.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A direct-insert electrolytic capacitor mounting structure for an aluminum substrate, comprising:

[0008] A mounting seat, wherein a limit assembly is provided on the mounting seat, and a first mounting hole is provided on the mounting seat;

[0009] A conductive sheet, the conductive sheet being arranged on the mounting seat through the limiting assembly, and the conductive sheet being provided with a second mounting hole corresponding to the first mounting hole;

[0010] An aluminum substrate is provided with a positioning hole, and the mounting seat is arranged on the aluminum substrate through the positioning hole.

[0011] Compared with the prior art, the first mounting hole on the mounting base in the present application corresponds to the position of the second through hole on the conductive sheet. When installing the electrolytic capacitor, the pins of the electrolytic capacitor do not need to be bent to be welded to the conductive sheet, effectively avoiding the problem of bending the pins affecting the performance of the electrolytic capacitor or even damaging the capacitor, effectively improving the stability of the electrolytic capacitor installed on the aluminum substrate, and at the same time simplifying the installation process of the electrolytic capacitor on the aluminum substrate, reducing processing costs.

[0012] As an optional solution of the present invention, the limiting assembly includes a first limiting groove, and the top wall of the mounting seat is provided with the first limiting groove.

[0013] By adopting the above solution, the first limiting groove is provided on the top wall of the mounting base, thereby ensuring the correct position of the conductive sheet on the mounting base, thereby avoiding the problem of poor contact or short circuit caused by deviation in the position of the conductive sheet.

[0014] As an optional solution of the present invention, the conductive sheet is arranged in the first limiting groove.

[0015] By adopting the above solution, the conductive sheet is arranged in the first limiting groove, which can further ensure the position accuracy of the conductive sheet and enhance the stability of the electrical connection.

[0016] As an optional solution of the present invention, the side wall of the mounting seat is provided with a second limiting groove.

[0017] With the above solution, an additional positioning function is provided by providing the second limiting groove on the side wall of the mounting base, thereby ensuring the position accuracy of the conductive sheet on the mounting base and the stability after installation.

[0018] As an optional solution of the present invention, a bending portion is provided on the conductive sheet, the conductive sheet is arranged on the mounting seat and the bending portion is placed in the second limiting groove.

[0019] With the above solution, the bent portion is placed in the second limiting groove. The conductive sheet can cooperate with the bent portion and the second limiting groove to ensure that the conductive sheet does not shift in position, thereby improving the stability of the conductive sheet after installation.

[0020] As a preferred solution of the present invention, a soldering pad is provided on the aluminum substrate, and the conductive sheet is connected to the aluminum substrate via the soldering pad.

[0021] By adopting the above solution, by setting the welding pad on the aluminum substrate, large-scale automatic welding can be achieved through the placement machine, which simplifies the process, increases the welding speed, reduces the processing cost, and greatly improves the welding quality.

[0022] As a preferred solution of the present invention, an electrolytic capacitor is further included, and the pins of the electrolytic capacitor are sequentially arranged through the first mounting hole and the second mounting hole and connected to the conductive sheet.

[0023] By adopting the above solution, the pins of the electrolytic capacitor pass through the first mounting hole and the second mounting hole in sequence and are connected to the conductive sheet. The pins of the electrolytic capacitor can be connected to the conductive sheet without bending the pins of the electrolytic capacitor, which effectively simplifies the installation process of the electrolytic capacitor on the aluminum substrate and improves production efficiency. At the same time, it also avoids the problem of performance degradation or even damage of the electrolytic capacitor due to bending of the pins.

[0024] As a preferred solution of the present invention, a positioning protrusion is provided on the mounting seat, the size and shape of the positioning protrusion correspond to the positioning hole, and the mounting seat is arranged on the aluminum substrate through the cooperation between the positioning protrusion and the positioning hole.

[0025] By adopting the above solution, the cooperation between the positioning protrusion and the positioning hole ensures the accurate position of the mounting seat on the aluminum substrate, reduces the installation error, and thus improves the production quality and production efficiency.

[0026] As a preferred solution of the present invention, it further includes a radiator, the radiator has a receiving cavity, and the radiator is connected to the aluminum substrate.

[0027] By adopting the above solution, the accommodating cavity on the radiator can provide an installation cavity for the electrolytic capacitor. When the radiator is installed on the aluminum substrate and the electrolytic capacitor is placed in the accommodating cavity, it can play an auxiliary heat dissipation role, thereby achieving better heat dissipation effect and reducing the overall volume.

[0028] The above-mentioned direct-insert electrolytic capacitor mounting structure for an aluminum substrate has the following beneficial effects: the first mounting hole on the mounting base corresponds to the position of the second mounting hole on the conductive sheet. When installing the electrolytic capacitor, the pins of the electrolytic capacitor can be passed through the first mounting hole and the second mounting hole in sequence and connected to the conductive sheet. The electrolytic capacitor can be installed on the aluminum substrate without bending the pins of the electrolytic capacitor. This effectively solves the problem in the prior art that the pins of the electrolytic capacitor need to be bent when installing the electrolytic capacitor on the aluminum substrate, thereby affecting the performance of the electrolytic capacitor or even damaging the electrolytic capacitor. It effectively improves the stability of the electrolytic capacitor installed on the aluminum substrate. At the same time, since there is no need to bend the pins of the electrolytic capacitor, the installation process of the electrolytic capacitor is simplified, the welding quality and installation efficiency are improved, and the processing cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a direct-insert electrolytic capacitor installation structure for an aluminum substrate according to the present invention;

[0030] Figure 2 This is a structural schematic diagram of a mounting base in a direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to the present invention;

[0031] Figure 3 This is a schematic diagram of the connection between the mounting base and the conductive sheet in a direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to the present invention;

[0032] Figure 4 This is a schematic structural diagram of a direct-insert electrolytic capacitor installation structure for an aluminum substrate according to the present invention after an electrolytic capacitor is installed;

[0033] Figure 5 This is a schematic diagram of the internal structure of a direct-insert electrolytic capacitor installation structure for an aluminum substrate after a radiator is installed in the utility model;

[0034] In the figure: 1. Mounting seat; 11. Positioning protrusion; 2. Limiting assembly; 21. First limiting groove; 22. Second limiting groove; 3. First mounting hole; 4. Conductive sheet; 41. Bending portion; 5. Second mounting hole; 6. Aluminum substrate; 7. Positioning hole; 8. Electrolytic capacitor; 9. Radiator; 10. Accommodating cavity.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0037] 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 in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The utility model provides a direct-insertion electrolytic capacitor installation structure for an aluminum substrate.

[0040] Reference Figures 1 to 5In one embodiment of the present utility model, a direct-insert electrolytic capacitor 8 mounting structure for an aluminum substrate 6 includes: a mounting base 1, a conductive sheet 4 and an aluminum substrate 6. A limiting component 2 is provided on the mounting base 1, and a first mounting hole 3 is provided on the mounting base 1; the conductive sheet 4 is arranged on the mounting base 1 through the limiting component 2, and a second mounting hole 5 is provided on the conductive sheet 4 corresponding to the first mounting hole 3; a positioning hole 7 is provided on the aluminum substrate 6, and the mounting base 1 is arranged on the aluminum substrate 6 through the positioning hole 7; it is worth noting that there are two groups of limiting components 2 and two mounting holes on the mounting base 1, and corresponding to the limiting components 2, the number of conductive sheets 4 is also two, and each conductive sheet 4 corresponds to a group of limiting components 2. The material of the mounting base 1 is insulating and high-temperature resistant material. In this embodiment, the material of the mounting base 1 is PP material. The first mounting hole 3 on the mounting base 1 corresponds to the position of the second through hole on the conductive sheet 4. When installing the electrolytic capacitor 8, the pins of the electrolytic capacitor 8 can be welded to the conductive sheet 4 without bending the pins of the electrolytic capacitor 8, effectively avoiding the problem of bending the pins affecting the performance of the electrolytic capacitor 8 or even damaging the capacitor, effectively improving the stability of the electrolytic capacitor 8 installed on the aluminum substrate 6, and at the same time simplifying the installation process of the electrolytic capacitor 8 on the aluminum substrate 6, reducing processing costs.

[0041] In an optional embodiment, the limiting assembly 2 includes a first limiting groove 21. The top wall of the mounting base 1 is provided with the first limiting groove 21, and the conductive plate 4 is positioned within the first limiting groove 21. Providing the first limiting groove 21 on the top wall of the mounting base 1 ensures the correct position of the conductive plate 4 on the mounting base 1, avoiding problems such as poor contact or short circuits caused by deviations in the position of the conductive plate 4. Placing the conductive plate 4 within the first limiting groove 21 further ensures the positional accuracy of the conductive plate 4 and enhances the stability of the electrical connection.

[0042] In an optional embodiment, the sidewall of the mounting base 1 is provided with a second limiting groove 22, and the conductive sheet 4 has a bent portion 41. The conductive sheet 4 is placed on the mounting base 1, and the bent portion 41 is placed in the second limiting groove 22. The second limiting groove 22 provided on the sidewall of the mounting base 1 provides an additional positioning function, ensuring the positional accuracy of the conductive sheet 4 on the mounting base 1 and the stability after installation. The bent portion 41 is placed in the second limiting groove 22. The cooperation between the bent portion 41 and the second limiting groove 22 ensures that the conductive sheet 4 does not shift in position, thereby improving the stability of the conductive sheet 4 after installation.

[0043] Reference Figure 2 and Figure 3In a preferred embodiment, a first limiting groove 21 is provided on the top wall of the mounting base 1, a second limiting groove 22 is provided on the side wall of the mounting base 1, and the conductive sheet 4 has a bent portion 41. The conductive sheet 4 is placed in the first limiting groove 21, and the bent portion 41 on the conductive sheet 4 is placed in the second limiting groove 22. This arrangement can further ensure that the installation position of the conductive sheet 4 on the mounting base 1 will not be offset, thereby effectively improving the stability of the conductive sheet 4 after installation.

[0044] Reference Figure 2 and Figure 3 In one embodiment, a positioning protrusion 11 is integrally formed on the mounting base 1. The size and shape of the positioning protrusion 11 correspond to the positioning hole 7. The mounting base 1 is positioned on the aluminum substrate 6 through the cooperation of the positioning protrusion 11 and the positioning hole 7. The aluminum substrate 6 is designed with a soldering pad 61 at the location corresponding to the contact between the conductive sheet 4 and the aluminum substrate 6. The soldering pad 61 is used to solder the conductive sheet 4 on the mounting base 1 to the aluminum substrate 6. This allows for large-scale automatic soldering using a placement machine, simplifying the process, increasing soldering speed, reducing processing costs, and significantly improving soldering quality. The cooperation between the positioning protrusion 11 and the positioning hole 7 ensures the precise positioning of the mounting base 1 on the aluminum substrate 6, reducing installation errors, and thereby improving production quality and efficiency.

[0045] Reference Figure 4 and Figure 5 In one embodiment, an electrolytic capacitor 8 is further included. The pins of the electrolytic capacitor 8 are sequentially inserted through the first mounting hole 3 and the second mounting hole 5 and are welded to the conductive sheet 4. The pins of the electrolytic capacitor 8 are sequentially inserted through the first mounting hole 3 and the second mounting hole 5 and connected to the conductive sheet 4. This allows the pins of the electrolytic capacitor 8 to be connected to the conductive sheet 4 without bending the pins of the electrolytic capacitor 8. This effectively simplifies the installation process of the electrolytic capacitor 8 on the aluminum substrate 6, improves production efficiency, and avoids the problem of performance degradation or even damage to the electrolytic capacitor 8 due to bent pins.

[0046] Reference Figure 5 In one embodiment, a heat sink 9 is further included. The heat sink 9 has a receiving cavity 10 and is connected to the aluminum substrate 6 by screws. The receiving cavity 10 on the heat sink 9 can provide a mounting cavity for the electrolytic capacitor 8. When the heat sink 9 is mounted on the aluminum substrate 6 and the electrolytic capacitor 8 is placed in the receiving cavity 10, it can assist in heat dissipation, thereby achieving better heat dissipation and reducing the overall volume.

[0047] The first mounting hole 3 on the mounting base 1 corresponds to the position of the second mounting hole 5 on the conductive sheet 4. When installing the electrolytic capacitor 8, the pins of the electrolytic capacitor 8 can be passed through the first mounting hole 3 and the second mounting hole 5 in sequence and connected to the conductive sheet 4. In this way, the electrolytic capacitor 8 can be installed on the aluminum substrate 6 without bending the pins of the electrolytic capacitor 8. This effectively solves the problem in the prior art that the pins of the electrolytic capacitor 8 need to be bent when installing the electrolytic capacitor 8 on the aluminum substrate 6, thereby affecting the performance of the electrolytic capacitor 8 or even damaging the electrolytic capacitor 8. It effectively improves the stability of the electrolytic capacitor 8 installed on the aluminum substrate 6. At the same time, since there is no need to bend the pins of the electrolytic capacitor 8, the installation process of the electrolytic capacitor 8 is simplified, the welding quality and installation efficiency are improved, and the processing cost is reduced.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A direct-insert electrolytic capacitor mounting structure for an aluminum substrate, characterized in that: include: A mounting seat, wherein a limit assembly is provided on the mounting seat, and a first mounting hole is provided on the mounting seat; A conductive sheet, the conductive sheet being arranged on the mounting seat through the limiting assembly, and the conductive sheet being provided with a second mounting hole corresponding to the first mounting hole; An aluminum substrate is provided with a positioning hole, and the mounting seat is arranged on the aluminum substrate through the positioning hole.

2. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 1, characterized in that: The limiting assembly includes a first limiting groove, and the top wall of the mounting seat is provided with the first limiting groove.

3. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 2, characterized in that: The conductive sheet is arranged in the first limiting groove.

4. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 1, wherein: The side wall of the mounting seat is provided with a second limiting groove.

5. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 4, characterized in that: A bending portion is provided on the conductive sheet, the conductive sheet is arranged on the mounting seat, and the bending portion is placed in the second limiting groove.

6. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 1, characterized in that: A soldering pad is provided on the aluminum substrate, and the conductive sheet is connected to the aluminum substrate via the soldering pad.

7. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 1, characterized in that: An electrolytic capacitor is also included, and the pins of the electrolytic capacitor are sequentially arranged through the first mounting hole and the second mounting hole and connected to the conductive sheet.

8. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 1, characterized in that: The mounting seat is provided with a positioning protrusion, the size and shape of the positioning protrusion correspond to the positioning hole, and the mounting seat is arranged on the aluminum substrate through the cooperation between the positioning protrusion and the positioning hole.

9. The direct-insert electrolytic capacitor mounting structure for an aluminum substrate according to claim 1, characterized in that: It also includes a heat sink, which has a receiving cavity and is connected to the aluminum substrate.

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