Composite diode structure with good heat dissipation

Abstract

The utility model relates to the technical field of composite diode equipment, in particular to a composite diode structure with good heat dissipation, which comprises a composite diode, the composite diode is fixedly sleeved with a shell, the shell comprises a bottom plate and a shell fixedly arranged above the bottom plate, and a plurality of mounting ports are formed in the outer side of the periphery of the shell. A mounting hole penetrating through the bottom plate is formed below each mounting opening, and the inner wall of each mounting opening is provided with an indication mark on the shell; a fixing screw is arranged in each mounting hole, and an indicating device matched with the indicating mark is arranged at the top of each fixing screw and located in the corresponding mounting opening; the pressing part is fixedly arranged below the bottom plate, and the pressing part with low hardness is arranged below the bottom plate, so that when the composite diode is used, the flat plate at the bottom can be better attached to the metal surface of the heat dissipation device, and the heat dissipation effect is better.

Description

Technical Field

[0001] The present application relates to the technical field of composite diode equipment, and in particular to a composite diode structure with good heat dissipation. Background Art

[0002] The statements in this section merely provide background technical information related to the present application and do not necessarily constitute prior art.

[0003] The composite diode is composed of multiple diodes in structure. In some high-power applications, due to the large current, the opening and closing actions of the diode will generate considerable heat, so the heat dissipation of the composite diode needs to be considered.

[0004] Currently, there is a composite diode made in a flat plate style, namely a flat plate diode, which uses a metal plate at the bottom to be mounted on the metal surface of a heat sink, so as to remove the internal heat through the metal plate.

[0005] However, the above existing technologies have disadvantages:

[0006] 1. In order to ensure the heat dissipation effect, it is necessary to ensure that the metal plate and the metal surface of the heat sink are completely in contact. The better the contact, the better the heat dissipation. However, in practice, the metal surface of the heat sink is sometimes not smooth, and when the roughness is high, the contact effect is worse.

[0007] 2. The metal plate of the flat-plate diode is fastened to the heat sink by screws. Due to the high vibration of the on-site environment, long-term use will inevitably cause the screws to loosen, thus affecting the heat dissipation effect.

[0008] In view of this, it is necessary to provide a composite diode structure with good heat dissipation to solve the above technical problems. Summary of the invention

[0009] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art and provide a composite diode structure with good heat dissipation.

[0010] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0011] The present application proposes a composite diode structure with good heat dissipation, including a composite diode, wherein a housing is provided outside the composite diode, wherein the housing includes a bottom plate and a shell fixedly provided above the bottom plate, wherein a plurality of mounting openings are provided on the outer side of the shell, and a mounting hole passing through the bottom plate is provided below each mounting opening; an indicator mark is provided on the inner wall of the mounting opening on the shell;

[0012] Each mounting hole is provided with a fixing screw, and the top of the fixing screw is located in the mounting opening and provided with an indicating device that matches the indicating mark;

[0013] A pressing portion is fixedly provided below the bottom plate.

[0014] Preferably, the pressing part comprises a plurality of cones arranged at equal intervals below the bottom plate, and the bottom surfaces of the cones are fixedly connected to the bottom plate; the cones are made of pure aluminum;

[0015] The base plate is made of aluminum alloy.

[0016] Preferably, the indicating device comprises:

[0017] An outer set, wherein a sleeve opening is provided at the bottom of the outer set to match the top of the screw, a magnet is fixed in the sleeve opening, and a connecting rod is fixed at the top of the outer set;

[0018] An indicator plate, a connecting tube is fixedly provided below the indicator plate, and a connecting port for connecting a connecting rod is provided in the middle of the connecting tube;

[0019] A positioning mark is fixedly arranged on the top of the indicator plate.

[0020] Preferably, the connecting rod is snap-connected with the connecting port.

[0021] Preferably, the connecting rod is bonded to the connecting port.

[0022] Preferably, the indicator mark is a groove opened on the housing;

[0023] The positioning mark is a linear convex strip fixedly arranged on the top of the indicator plate.

[0024] Preferably, the hardness of the base plate material is greater than 110HB.

[0025] The hardness of the cone material is less than 30HB.

[0026] Preferably, the housing is further provided with a wiring terminal, and the wiring terminal is electrically connected to the composite diode.

[0027] Preferably, the housing is further provided with a control terminal, and the control terminal is electrically connected to the composite diode.

[0028] A method for installing a composite diode comprises the following steps:

[0029] S0: Apply silicone grease to the bottom of the base plate of the shell;

[0030] S1: After attaching the base plate to the heat sink, tighten the fixing screws;

[0031] S2; buckle the outer cover of the indicating device onto the top of the fixing screw;

[0032] S3: Align the positioning mark on the top of the indicator disc with the indicator mark, and then fix the connecting tube of the indicator disc to the connecting rod.

[0033] Compared with the prior art, the beneficial effects of this application are:

[0034] 1. By setting the indicating device, when the fastening screws are loosened due to vibration, it can be discovered in time by the maintenance personnel, and the loose fastening screws can be tightened in time to ensure the heat dissipation effect of the composite diode.

[0035] 2. By providing a low-hardness pressing portion under the bottom plate, the bottom plate of the composite diode can better fit with the metal surface of the heat sink when the composite diode is in use, thereby achieving a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0037] Figure 1 This is a schematic diagram of the overall structure of a composite diode structure with good heat dissipation in this application.

[0038] Figure 2 for Figure 1 Another angle diagram of the overall structure.

[0039] Figure 3 This is a schematic diagram of the overall structure of an indicator device with a composite diode structure having good heat dissipation in the present application.

[0040] Figure 4 for Figure 3 Exploded view of the indicator device.

[0041] In the figure:

[0042] 1. Shell, 2. Mounting port, 3. Fixing screw, 4. Indicator mark, 5. Indicator device, 6. Wiring terminal, 7. Wiring bolt, 8. Control wiring terminal, 9. Mounting hole, 10. Clamping part,

[0043] 50. Outer set, 51. Socket, 52. Connecting rod, 53. Connecting tube, 54. Connecting port, 55. Indicator plate. DETAILED DESCRIPTION

[0044] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0046] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0047] The present application proposes a composite diode structure with good heat dissipation, including a composite diode, wherein a housing 1 is fixedly mounted outside the composite diode, Figure 1 as well as Figure 2 The housing 1 includes a bottom plate and a shell fixedly mounted on the bottom plate. The shell is provided with a plurality of mounting openings 2 on the outer sides thereof. A mounting hole 9 passing through the bottom plate is provided below each mounting opening 2. An indicator mark 4 is provided on the inner wall of the mounting opening 2 on the shell. A fixing screw 3 is provided in each mounting hole 9. An indicator device 5 cooperating with the indicator mark 4 is provided in the top of the fixing screw 3 located in the mounting opening 2. A pressing portion 10 is fixedly provided below the bottom plate. The indicator mark 4 is a groove opened on the shell. The positioning mark is a linear convex strip fixedly mounted on the top of the indicator plate 55.

[0048] refer to Figure 2 The pressing part 10 includes a plurality of cones arranged at equal intervals below the bottom plate, and the bottom surface of the cone is fixedly connected to the bottom plate; the cone is made of pure aluminum, and the hardness of the cone material is less than 30HB; the bottom plate is made of aluminum alloy, and the hardness of the bottom plate material is greater than 110HB. In this way, when the bottom plate is mounted on the heat sink, the cone is pressed by tightening the screws, because the hardness of the cone material is relatively small, so as to fill the gap between the bottom plate and the heat sink, which is particularly suitable for occasions where the heat sink has a high roughness and is uneven, so that the heat sink and the bottom plate have better contact, and the heat dissipation effect is also better.

[0049] refer to Figure 3 as well as Figure 4 , the indicating device 5 comprises:

[0050] An outer sleeve 50, wherein a sleeve opening 51 cooperating with the top of the screw 3 is provided at the bottom of the outer sleeve 50, and a magnet is fixedly provided in the sleeve opening 51; a connecting rod 52 is fixedly provided at the top of the outer sleeve 50;

[0051] An indicator plate 55, a connecting tube 53 is fixedly disposed below the indicator plate 55, and a connecting port 54 for connecting the connecting rod 52 is disposed in the middle of the connecting tube 53;

[0052] A positioning mark is fixedly provided on the top of the indicator plate 55 .

[0053] In some embodiments, the connecting rod 52 is engaged with the connecting port 54 .

[0054] In some embodiments, the connecting rod 52 is bonded to the connecting port 54 .

[0055] In some embodiments, a terminal block 6 is further provided on the housing, and the terminal block 6 is electrically connected to the composite diode for connecting to the outside when the composite diode is in use. When in use, the connection between the terminal block 6 and the outside is achieved by hanging an external circuit on the terminal bolt 7 and then screwing the terminal block 6 in to fix it.

[0056] In some embodiments, a control terminal 8 is further provided on the housing, and the control terminal 8 is electrically connected to the composite diode. The function of the control terminal 8 is to connect to an external control voltage signal to control the on and off of the composite diode through the external control voltage signal to achieve multi-functional usage requirements.

[0057] The present application provides a method for installing a composite diode, based on the above-mentioned composite diode structure with good heat dissipation, comprising the following steps:

[0058] S0: Apply silicone grease to the bottom of the bottom plate of the housing 1;

[0059] S1: After attaching the bottom plate to the heat sink, tighten the fixing screw 3; the fixing screw 3 can be tightened after adjusting the torque with a socket wrench until the cone under the bottom plate is flattened and fills the gap between the bottom plate and the metal surface of the heat sink;

[0060] S2; buckle the outer sleeve 50 of the indicating device 5 on the top of the fixing screw 3;

[0061] S3: Align the positioning mark on the top of the indicator plate 55 with the indicator mark 4, and then fix the connecting tube 53 of the indicator plate 55 and the connecting rod 52.

[0062] When the fastening screw 3 rotates due to vibration, the indicator mark 4 will inevitably deviate from the positioning mark, which can be clearly observed by the regular maintenance staff, who can then remove the indicator device 5 and tighten the corresponding fastening screw 3.

[0063] The reason why we do not use the method of directly marking the top of the fastening screw is that in practice, Figure 1The fastening screw 3 shown in the figure has a cross opening at the top for tightening or loosening it by an electric screwdriver. Tightening or loosening with an electric screwdriver 3 takes up less space, is more efficient, and the rotation process is more intuitive compared to the sleeve.

[0064] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0065] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A composite diode structure with good heat dissipation, comprising a composite diode, wherein a housing (1) is provided outside the composite diode, and wherein: The housing (1) comprises a bottom plate and an outer shell fixedly mounted on the bottom plate, the outer shell being provided with a plurality of mounting openings (2) on the periphery of the outer shell, and a mounting hole (9) passing through the bottom plate is provided below each mounting opening (2); an indicator mark (4) is provided on the inner wall of the mounting opening (2) on the outer shell; Each mounting hole (9) is provided with a fixing screw (3), and a top of the fixing screw (3) is provided with an indicating device (5) that cooperates with the indicating mark (4) in the mounting opening (2); A pressing portion (10) is fixedly provided below the bottom plate.

2. A composite diode structure with good heat dissipation according to claim 1, characterized in that: The pressing portion (10) comprises a plurality of cones arranged at equal intervals below the bottom plate, the bottom surfaces of the cones being fixedly connected to the bottom plate; the cones are made of pure aluminum; The base plate is made of aluminum alloy.

3. A composite diode structure with good heat dissipation according to claim 2, characterized in that: The indicating device (5) comprises: An outer sleeve (50), wherein a sleeve opening (51) is provided at the bottom of the outer sleeve (50) and matches with the top of the fixing screw (3), and a magnet is fixedly provided in the sleeve opening (51); and a connecting rod (52) is fixedly provided at the top of the outer sleeve (50); An indicator plate (55), a connecting tube (53) being fixedly provided below the indicator plate (55), and a connecting port (54) for connecting a connecting rod (52) being provided in the middle of the connecting tube (53); A positioning mark is fixedly provided on the top of the indicator plate (55).

4. A composite diode structure with good heat dissipation according to claim 3, characterized in that: The connecting rod (52) is clamped with the connecting port (54).

5. The composite diode structure with good heat dissipation according to claim 3, characterized in that: The connecting rod (52) is bonded to the connecting port (54).

6. The composite diode structure with good heat dissipation according to claim 3, characterized in that: The indicator mark (4) is a groove opened on the shell; The positioning mark is a linear convex strip fixedly arranged on the top of the indicator plate (55).

7. The composite diode structure with good heat dissipation according to claim 2, characterized in that: The hardness of the base material is greater than 110HB; The hardness of the cone material is less than 30HB.

8. The composite diode structure with good heat dissipation according to claim 1, characterized in that: The housing is also provided with a wiring terminal (6), and the wiring terminal (6) is electrically connected to the composite diode.

9. A composite diode structure with good heat dissipation according to claim 8, characterized in that: The housing is also provided with a control terminal (8), and the control terminal (8) is electrically connected to the composite diode.

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