IGBT (Insulated Gate Bipolar Translator) shell convenient to assemble
By introducing components such as heat insulation layer and moisture-removing agent placing shells into the IGBT shell, the problem of poor protection effect of existing shells is solved, preventing condensate water damage and ensuring the stability of the IGBT.
Patent Information
- Application Number
- CN202420680722.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing IGBT shell has poor protection effect on IGBT, and the condensation water on the surface can easily cause damage to the internal components of the IGBT.
A convenient assembly IGBT shell is designed, including an insulating layer and an insulating layer on the inside. The auxiliary mechanism includes a cover, a moisture removal agent placement shell, a mesh plate and a baffle. The combination of these components achieves water vapor absorption and temperature isolation. Avoid condensation water formation and fix different models of IGBTs through the fitting of brackets, round sleeves and springs to prevent shaking.
It effectively prevents the formation of condensate, protects the internal components of the IGBT, and ensures stability during storage and transportation.
Smart Images
Figure CN222216166U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of IGBTs, in particular to an IGBT shell which is convenient for assembly. Background Art
[0002] IGBT (Insulated Gate Bipolar Transistor), an insulated gate bipolar transistor, is a composite fully controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor). It has the advantages of both MOSFET's high input impedance and GTR's low on-state voltage drop. GTR has a low saturation voltage drop and a large current density, but a large drive current; MOSFET has a very low drive power and a fast switching speed, but a large on-state voltage drop and a low current density. IGBT combines the advantages of the above two devices, with low drive power and low saturation voltage drop. In order to facilitate the transportation of IGBT, an IGBT housing that is easy to assemble is provided.
[0003] The storage warehouse of IGBT modules should be kept as far away from places with corrosive gases or dust as possible; since different companies are in different places and places with rapid temperature changes, there may be condensed water on the surface of IGBT modules, so the storage warehouse of IGBT modules should be placed in a place with small temperature changes.
[0004] However, the existing housing has a poor protective effect on the IGBT, and condensed water on the surface can easily cause damage to the internal components of the IGBT. Utility Model Content
[0005] In view of the deficiencies of the prior art, the utility model provides an IGBT housing that is easy to assemble, which solves the problem that the existing housing has a poor protective effect on the IGBT and condensed water on the surface easily causes damage to the internal components of the IGBT.
[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an IGBT housing that is easy to assemble, including a housing, a heat insulation layer is provided on the inner side of the housing, an insulating layer is provided on the inner side of the heat insulation layer, an auxiliary mechanism is provided on the top of the housing, the auxiliary mechanism includes a cover body, a desiccant placement shell, a mesh plate and a baffle, the bottom of the cover body is fitted with the top of the housing, a desiccant placement shell is installed at the bottom of the cover body, a mesh plate is installed below the desiccant placement shell, and two baffles are installed on the front of the desiccant placement shell.
[0007] Preferably, a back plate is fixedly connected to the front side of the cover body, two bolts are installed on the inner side of the back plate, and the outer sides of the bolts are threadedly connected to threaded holes opened on the front side of the shell.
[0008] Preferably, a positioning block is fixedly connected to the inner side of the insulating layer, and the outer side of the positioning block is movably connected to a slot provided on one side of the vertical plate, a pad is fixedly connected to the lower side of one side of the vertical plate, and a positioning slot is provided on the top of the pad.
[0009] Preferably, a bracket is fixedly connected to one side of the vertical plate, the outer wall of the bracket is rotatably connected to a round sleeve through a bearing, the bottom of the round sleeve is fixedly connected to a bent plate, the through hole of the bent plate is movably connected to a round rod, the top of the round rod is fixedly connected to a top plate that fits the inner side of the bent plate, the bottom of the round rod is fixedly connected to a bottom plate, the outer side of the round rod is movably connected to a second spring, and the two ends of the second spring are respectively fixedly connected to the bottom of the top plate and the inner side of the bent plate.
[0010] Preferably, the outer side of the circular sleeve is fixedly connected to one side of the vertical plate via a first spring, and a plurality of rubber protrusions are installed on the outer side of the positioning block.
[0011] The utility model provides an IGBT housing that is easy to assemble. It has the following beneficial effects: the IGBT housing that is easy to assemble achieves the absorption of water vapor inside the housing through the cooperation between the dehumidifier placement shell, the mesh plate and the baffle, and the provision of a heat insulation layer reduces the influence of the external temperature on the interior, avoids excessive temperature difference, and prevents the formation of condensed water, thereby solving the problem that the existing housing has a poor protective effect on the IGBT and the condensed water on the surface easily causes damage to the internal components of the IGBT.
[0012] Through the cooperation between the bracket, the round sleeve and the first spring, different types of IGBTs can be fixed, avoiding shaking during storage and transportation and ensuring stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the dehumidifier placement shell, mesh plate and baffle;
[0015] Figure 3 for Figure 1 Structural schematic diagram of the middle heat insulation layer, the insulating layer and the positioning block;
[0016] Figure 4 for Figure 1 Schematic diagram of the structure of the middle bracket, the circular sleeve and the first spring.
[0017] In the figure: 1, outer shell, 2, threaded hole, 3, thermal insulation layer, 4, insulating layer, 5, positioning block, 6, rubber protrusion, 7, vertical plate, 8, slot, 9, bracket, 10, round sleeve, 11, first spring, 12, pad, 13, positioning groove, 14, cover body, 15, backing plate, 16, bolt, 17, dehumidifier placement shell, 18, mesh plate, 19, baffle, 20, bent plate, 21, top plate, 22, round rod, 23, second spring, 24, bottom plate. DETAILED DESCRIPTION
[0018] 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.
[0019] The existing housing has a poor protective effect on the IGBT, and condensed water on the surface can easily cause damage to the internal components of the IGBT.
[0020] In view of this, an IGBT housing that is easy to assemble is provided. Through the cooperation between the dehumidifier placement shell, the mesh plate and the baffle, the absorption of water vapor inside the housing is achieved, and an insulating layer is provided to reduce the influence of the external temperature on the interior, avoid excessive temperature difference, and prevent the formation of condensed water. The problem that the existing housing has poor protection effect on the IGBT and the condensed water on the surface can easily cause damage to the internal components of the IGBT is solved.
[0021] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.
[0022] Embodiment 1: Figure 1-2 It can be seen that an IGBT housing that is convenient for assembly includes a housing 1, a heat insulation layer 3 is arranged on the inner side of the housing 1, an insulating layer 4 is arranged on the inner side of the heat insulation layer 3, the main material of the insulating layer 4 is PVC, and it has a good insulation effect, an auxiliary mechanism is arranged on the top of the housing 1, the auxiliary mechanism includes a cover body 14, a dehumidifier placement shell 17, a mesh plate 18 and a baffle 19, the bottom of the cover body 14 is in contact with the top of the housing 1, the bottom of the cover body 14 is installed with a dehumidifier placement shell 17, a mesh plate 18 is installed below the dehumidifier placement shell 17, and two baffles 19 are installed on the front of the dehumidifier placement shell 17;
[0023] In the specific implementation process, it is worth pointing out that the main material of the heat insulation layer 3 is rock wool board, which has a good heat insulation effect. The dehumidifier package can be placed inside the dehumidifier placement shell 17, and the water vapor inside the shell 1 can be absorbed by the mesh plate 18. The two baffles 19 can prevent the dehumidifier package from flowing out from the front of the dehumidifier placement shell 17;
[0024] Furthermore, a back plate 15 is fixedly connected to the front of the cover body 14, and two bolts 16 are installed on the inner side of the back plate 15. The outer side of the bolts 16 is threadedly connected to a threaded hole 2 opened on the front side of the housing 1;
[0025] In the specific implementation process, it is worth pointing out that the user can fix the cover 14 by fixing it in the threaded hole 2 on the front side of the housing 1 through the bolt 16;
[0026] Specifically, when using the IGBT housing that is easy to assemble, the absorption of water vapor inside the housing 1 is achieved through the cooperation between the dehumidifier placement shell 17, the mesh plate 18 and the baffle 19, and the provision of the thermal insulation layer 3 reduces the influence of the external temperature on the interior, avoids excessive temperature difference, and prevents the formation of condensed water, thereby solving the problem that the existing housing 1 has poor protection effect on the IGBT and the condensed water on the surface easily causes damage to the internal components of the IGBT.
[0027] Embodiment 2: By Figure 1 , 3 As can be seen from Figure 4, a positioning block 5 is fixedly connected to the inner side of the insulating layer 4. The positioning block 5 is in a trapezoidal shape. After the vertical plate 7 is engaged with the positioning block 5, the vertical plate 7 can only move vertically. The outer side of the positioning block 5 is movably connected to a slot 8 opened on one side of the vertical plate 7. A pad 12 is fixedly connected to the lower side of the vertical plate 7. A positioning slot 13 is opened on the top of the pad 12.
[0028] In the specific implementation process, it is worth pointing out that the IGBT can be placed inside the positioning groove 13, and the user can slide the vertical plate 7 into the positioning block 5 to achieve the positioning of the pad 12 and the vertical plate 7;
[0029] Further, a bracket 9 is fixedly connected to one side of the vertical plate 7, and a round sleeve 10 is rotatably connected to the outer wall of the bracket 9 through a bearing, a bent plate 20 is fixedly connected to the bottom of the round sleeve 10, a round rod 22 is movably connected to the through hole of the bent plate 20, and the round rod 22 can move in the through hole of the bent plate 20, a top plate 21 that fits the inner side of the bent plate 20 is fixedly connected to the top of the round rod 22, a bottom plate 24 is fixedly connected to the bottom of the round rod 22, and a second spring 23 is movably connected to the outer side of the round rod 22, and two ends of the second spring 23 are respectively fixedly connected to the bottom of the top plate 21 and the inner side of the bent plate 20;
[0030] In the specific implementation process, it is worth pointing out that the device can drive the bottom plate 24 to press against the outside of the IGBT for positioning by relying on the elastic deformation of the second spring 23, thereby preventing the IGBT from moving randomly;
[0031] Furthermore, the outer side of the circular sleeve 10 is fixedly connected to one side of the vertical plate 7 through the first spring 11, and a plurality of rubber protrusions 6 are installed on the outer side of the positioning block 5;
[0032] In the specific implementation process, it is worth pointing out that the device can drive the bent plate 20 to always be in a vertical state by relying on the elastic deformation of the first spring 11;
[0033] Specifically, on the basis of the first embodiment, the bracket 9, the round sleeve 10 and the first spring 11 cooperate with each other to achieve the fixation of IGBTs of different models, avoid shaking during storage and transportation, and ensure stability.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An IGBT housing that is easy to assemble, comprising a housing (1), characterized in that: A heat insulation layer (3) is arranged on the inner side of the outer shell (1), an insulating layer (4) is arranged on the inner side of the heat insulation layer (3), and an auxiliary mechanism is arranged above the outer shell (1); The auxiliary mechanism comprises a cover body (14), a dehumidifier placement shell (17), a mesh plate (18) and a baffle plate (19); The bottom of the cover body (14) is fitted with the top of the outer shell (1), a dehumidifier placement shell (17) is installed at the bottom of the cover body (14), a mesh plate (18) is installed below the dehumidifier placement shell (17), and two baffles (19) are installed on the front of the dehumidifier placement shell (17).
2. The conveniently assembled IGBT housing according to claim 1, characterized in that: The front side of the cover body (14) is fixedly connected to a back plate (15), the inner side of the back plate (15) is provided with two bolts (16), and the outer sides of the bolts (16) are threadedly connected to a threaded hole (2) provided on the front side of the housing (1).
3. The conveniently assembled IGBT housing according to claim 1, characterized in that: A positioning block (5) is fixedly connected to the inner side of the insulating layer (4), and the outer side of the positioning block (5) is movably connected to a slot (8) provided on one side of the vertical plate (7). A pad (12) is fixedly connected to the lower side of one side of the vertical plate (7), and a positioning slot (13) is provided on the top of the pad (12).
4. The conveniently assembled IGBT housing according to claim 3, characterized in that: A bracket (9) is fixedly connected to one side of the vertical plate (7); a round sleeve (10) is rotatably connected to the outer wall of the bracket (9) via a bearing; a bent plate (20) is fixedly connected to the bottom of the round sleeve (10); a round rod (22) is movably connected to the through hole of the bent plate (20); a top plate (21) that fits the inner side of the bent plate (20) is fixedly connected to the top of the round rod (22); a bottom plate (24) is fixedly connected to the bottom of the round rod (22); a second spring (23) is movably connected to the outer side of the round rod (22); and two ends of the second spring (23) are respectively fixedly connected to the bottom of the top plate (21) and the inner side of the bent plate (20).
5. The conveniently assembled IGBT housing according to claim 4, characterized in that: The outer side of the circular sleeve (10) is fixedly connected to one side of the vertical plate (7) via a first spring (11), and a plurality of rubber protrusions (6) are installed on the outer side of the positioning block (5).