A silicon controlled rectifier module and its structural parts

Abstract

The utility model discloses a thyristor module and its structural parts and electrode sheets. The electrode sheet includes a first connecting part and a second connecting part connected to each other. An air avoidance groove is provided between the first connecting part and the second connecting part. The electrode sheet can be used as a common electrode of the thyristor module. The first connecting part and the second connecting part can be used to install a connection chip. Then, two lead-out electrodes are connected respectively to serve as three electrodes of the thyristor module. The first connecting part and the second connecting part are connected to each other to achieve electrical conduction, and the air avoidance groove provided between the first connecting part and the second connecting part can increase the creepage distance between the chips to avoid creepage problems when installing large chips, thereby making the product safer and ensuring the performance of the product. The thyristor module structural parts include a base and an electrode sheet. The base and the electrode sheet are respectively provided with a first guide member and a second guide member that cooperate with each other, which can not only achieve foolproofing, but also increase the installation stability between the base and the electrode sheet.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor modules, in particular to a thyristor module and a structural component thereof. Background Art

[0002] Thyristor modules are usually called power semiconductor modules. They are high-power semiconductor devices with a four-layer structure and three PN junctions obtained in the form of module packaging. Thyristor modules generally include a mounting shell and structures such as electrode sheets and chips arranged in the mounting shell. Some thyristor modules in the prior art are provided with a common electrode sheet in the mounting shell. One end of the common electrode sheet is provided with a lead electrode. Two chips are installed at the other end of the common electrode sheet and then connected to the two lead electrodes, thereby forming three electrodes of the thyristor module. However, since the internal space of the mounting shell is relatively narrow, when a large chip is installed, creepage problems are very likely to occur between chips, resulting in product performance being affected. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an electrode sheet for a thyristor module, which can increase the creepage distance between chips and avoid creepage problems when installing large chips, thereby making the product safer and ensuring product performance.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: an electrode sheet includes a first connecting part and a second connecting part connected to each other, and a gap is provided between the first connecting part and the second connecting part.

[0005] Compared with the prior art, the utility model has the following beneficial effects: the electrode sheet can be used as the common electrode of the thyristor module, the first connection part and the second connection part can be used to install the connection chip, and then connected to the two lead electrodes respectively, they can be used as the three electrodes of the thyristor module. The first connection part and the second connection part are connected to each other to achieve electrical conduction, and the air avoidance groove opened between the first connection part and the second connection part can increase the creepage distance between the chips, avoiding the creepage problem when installing a large chip, thereby making the product safer and ensuring the performance of the product.

[0006] The electrode sheet mentioned above further includes a lead-out portion, and the lead-out portion, the first connecting portion and the second connecting portion are connected in sequence.

[0007] In the above-mentioned electrode sheet, the lead-out portion, the first connecting portion and the second connecting portion are integrally formed.

[0008] In the above-mentioned electrode sheet, the lead-out portion is provided with a mounting hole.

[0009] The utility model also provides a thyristor module structure, comprising a base and the above-mentioned electrode sheet, wherein the electrode sheet is connected to the base. Since the thyristor module structure adopts the above-mentioned electrode sheet, it has at least all the beneficial effects that the above-mentioned electrode sheet can bring.

[0010] In the above-mentioned thyristor module structure, the base is provided with a first installation position, and the first installation position is used for positioning and installing the first connecting part and the second connecting part.

[0011] The utility model also provides a thyristor module structure, including a base and the above-mentioned electrode sheet, the base is provided with a first mounting position and a second mounting position, the first mounting position is used to position and install the first connecting portion and the second connecting portion, and the second mounting position is used to position and install the lead-out portion. Since the thyristor module structure adopts the above-mentioned electrode sheet, it has at least all the beneficial effects that the above-mentioned electrode sheet can bring.

[0012] In the above-mentioned thyristor module structural component, the second installation position is provided with a first guide member, the lead-out portion is provided with a second guide member, and the first guide member is cooperatively connected with the second guide member.

[0013] In the above-mentioned thyristor module structural member, one of the first guide member and the second guide member is a guide protrusion, and the other is a guide groove.

[0014] The utility model also provides a thyristor module, including the electrode sheet or the thyristor module structural member. Since the thyristor module adopts the electrode sheet or the thyristor module structural member, it at least has all the beneficial effects that the electrode sheet or the thyristor module structural member can bring.

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an electrode sheet according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic structural diagram of a thyristor module structural component according to an embodiment of the utility model.

[0018] Description of the accompanying drawings: 100 electrode sheet, 110 first connecting portion, 120 second connecting portion, 130 air avoidance groove, 140 lead-out portion, 141 mounting hole, 142 second guide member, 200 base, 210 first mounting position, 220 second mounting position, 221 first guide member. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below:

[0020] Embodiment 1

[0021] Reference Figure 1 , Embodiment 1 of the present utility model provides an electrode sheet 100, including a first connection portion 110 and a second connection portion 120 connected to each other, and an air avoidance groove 130 is provided between the first connection portion 110 and the second connection portion 120. The electrode sheet 100 can be used as a common electrode of a thyristor module, and the first connection portion 110 and the second connection portion 120 can be used to install a connection chip, and then two lead electrodes are connected respectively, so as to serve as three electrodes of the thyristor module. The first connection portion 110 and the second connection portion 120 are connected to each other to achieve electrical conduction, and the air avoidance groove 130 provided between the first connection portion 110 and the second connection portion 120 can increase the creepage distance between chips, avoiding creepage problems when installing large chips, thereby making the product safer and ensuring the performance of the product.

[0022] Furthermore, the electrode sheet 100 also includes a lead-out portion 140, and the lead-out portion 140, the first connection portion 110 and the second connection portion 120 are connected in sequence. The lead-out portion 140 is provided with a mounting hole 141 for inserting screws, which is convenient for users to connect and use. The lead-out portion 140, the first connection portion 110 and the second connection portion 120 are integrally formed to facilitate the forming of the electrode sheet 100 and the subsequent assembly of the thyristor module. The lead-out portion 140 and the second connection portion 120 are both protruding upward relative to the first connection portion 110, and there is a bending portion between the lead-out portion 140 and the second connection portion 120, and there is also a bending portion between the first connection portion 110 and the second connection portion 120 to facilitate the forming of the electrode sheet 100. The air-avoiding groove 130 is provided on the bending portion between the first connecting portion 110 and the second connecting portion 120, so that the air-avoiding groove 130 can be extended in both the horizontal direction and the vertical direction, and a sufficiently large air-avoiding groove 130 can be obtained without increasing the internal space of the base 200, thereby better increasing the creepage distance between the chips. Moreover, the second connecting portion 120 protrudes upward relative to the first connecting portion 110, so that the two chips can be staggered in height, further avoiding the creepage problem.

[0023] Embodiment 2

[0024] The second embodiment of the present utility model provides a thyristor module structure, including a base 200 and the above-mentioned electrode sheet 100, and the electrode sheet 100 is connected to the base 200. Since the thyristor module structure adopts the above-mentioned electrode sheet 100, it has at least all the beneficial effects that can be brought by the above-mentioned electrode sheet 100. Further, the base 200 is provided with a first installation position 210, and the first installation position 210 is used to position and install the first connecting portion 110 and the second connecting portion 120, so as to facilitate the installation of the electrode sheet 100 into the base 200.

[0025] Embodiment 3

[0026] Reference Figure 1 and Figure 2 The third embodiment of the present utility model provides a thyristor module structure, including a base 200 and the above-mentioned electrode sheet 100, the base 200 is provided with a first mounting position 210 and a second mounting position 220, the first mounting position 210 is used to locate and install the first connecting portion 110 and the second connecting portion 120, and the second mounting position 220 is used to locate and install the lead-out portion 140. Since the thyristor module structure adopts the above-mentioned electrode sheet 100, it has at least all the beneficial effects that the above-mentioned electrode sheet 100 can bring.

[0027] Furthermore, the second installation position 220 is provided with a first guide 221, and the lead-out portion 140 is provided with a second guide 142. The first guide 221 and the second guide 142 are connected in cooperation, which can not only facilitate the installation of the electrode sheet 100 into the base 200, play a foolproof effect, but also increase the installation stability between the electrode sheet 100 and the base 200 to prevent the electrode sheet 100 from shifting. Furthermore, in the first guide 221 and the second guide 142, one is a guide protrusion and the other is a guide groove. For example, in Figure 1 and Figure 2 As shown in the figure, the first guide member 221 is a guide protrusion, and the second guide member 142 is a guide groove. In some other embodiments, a guide groove can also be opened on the base 200, and a guide protrusion can be set on the electrode sheet 100. Of course, the first guide member 221 and the second guide member 142 can also be other guide structures.

[0028] Embodiment 4

[0029] Embodiment 4 of the present utility model provides a thyristor module, including the electrode sheet 100, or including the thyristor module structural component. Since the thyristor module adopts the electrode sheet 100 or the thyristor module structural component, it at least has all the beneficial effects that the electrode sheet 100 or the thyristor module structural component can bring.

[0030] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A thyristor module structural component, characterized in that: The invention comprises an electrode sheet (100) and a base (200), wherein the electrode sheet (100) comprises a first connecting portion (110) and a second connecting portion (120) which are connected to each other, wherein a space-avoiding groove (130) is provided between the first connecting portion (110) and the second connecting portion (120), and the electrode sheet (100) further comprises a lead-out portion (140), wherein the lead-out portion (140), the first connecting portion (110) and the second connecting portion (120) are connected in sequence, and the base (200) comprises a first mounting position (210) and a second mounting position (220), wherein the first mounting position (210) is used for positioning and installing the first connecting portion (110) and the second connecting portion (120), and the second mounting position (220) is used for positioning and installing the lead-out portion (140).

2. The thyristor module structure according to claim 1, characterized in that: The lead-out portion (140), the first connecting portion (110) and the second connecting portion (120) are integrally formed.

3. The thyristor module structure according to claim 1 or 2, characterized in that: The lead-out portion (140) is provided with a mounting hole (141).

4. The thyristor module structure according to claim 1, characterized in that: The second installation position (220) is provided with a first guide member (221), the lead-out portion (140) is provided with a second guide member (142), and the first guide member (221) is cooperatively connected with the second guide member (142).

5. The thyristor module structure according to claim 4, characterized in that: One of the first guide member (221) and the second guide member (142) is a guide protrusion, and the other is a guide groove.

6. A thyristor module, characterized in that: It comprises a thyristor module structure as described in any one of claims 1 to 5.

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