One-piece molded root spring leaf structure
By designing an integrated root spring sheet structure, and utilizing support parts, connecting parts, bending parts, and support devices, the problem of unstable heat conduction of IGBTs on the vehicle control box housing was solved, achieving tight fit between the IGBT and the housing and efficient heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING HUIHANG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-08-04
AI Technical Summary
The conventional assembly method of existing IGBTs cannot ensure that the heat dissipation surface of the IGBT is completely in contact with the housing wall of the vehicle control box, resulting in poor heat conduction and affecting the cooling effect.
An integrated molded root spring sheet structure was designed, including a support part, a connecting part, a bending part, an abutment part, and a support device. The structure utilizes components such as a shell, a thermally conductive pad, and a transistor to achieve stable support and heat transfer, thereby improving thermal conductivity stability.
Through stable support and thermal conductivity design, the thermal conductivity stability and heat dissipation effect of IGBT are improved, ensuring that IGBT fits tightly with the housing and improving ease of use.
Smart Images
Figure CN224596938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of IGBT device technology, and in particular to an integrated molded root spring sheet structure. Background Technology
[0002] In existing technologies, the conventional assembly method for IGBTs involves first soldering the IGBT onto a PCB board, then installing and securing the PCB board. The pressure from the PCB board ensures that the heat dissipation surface of the IGBT, coated with thermal grease, is in close contact with the heat sink. However, since the vehicle control box housing is die-cast and integrally molded, using this conventional assembly method cannot guarantee complete contact between the IGBT's heat dissipation surface and the housing wall, leading to poor heat conduction and failing to achieve the desired cooling effect.
[0003] Existing technology CN222992004U discloses a spring sheet and IGBT mounting structure, including a support portion supported below the device to be mounted in a first direction, a connecting portion located below the support portion in the first direction and angledly connected to one end of the support portion, the connecting portion being connected to an external structure, a bending portion located above the support portion in the first direction and angledly connected to the end of the support portion away from the connecting portion, the top of the bending portion pressing against the device to be mounted, the spring sheet also including an abutting portion located above the bending portion in the first direction and angledly connected to the bending portion, the abutting portion including a pressing surface pressing against the device to be mounted, the connecting portion being able to connect to the side wall of the external structure to fix the spring sheet, one end of the support portion being connected above the connecting portion and angledly connected to the connecting portion, the device to be mounted being placed on top of the support portion, the bending portion being angledly connected to the other end of the support portion, the bending portion being able to press the device to be mounted against the side wall of the external structure, so that the device to be mounted is tightly fitted to the external structure.
[0004] However, using the above method makes it difficult to stably support the spring sheet during installation, which in turn affects the stability of heat conduction and makes it inconvenient to use. Utility Model Content
[0005] The purpose of this utility model is to provide an integrated molded root spring sheet structure, which facilitates stable support of the spring sheet during installation, thereby improving the stability of heat conduction and making it convenient to use.
[0006] To achieve the above objectives, this utility model provides an integrated molded root spring sheet structure, including a support part, a connecting part, a bending part, and an abutting part. The connecting part is located below the support part, the bending part is located above the support part, and the abutting part is located above the bending part. It also includes a support device.
[0007] The support device includes a housing, a thermal pad, a transistor, and a stabilizing component. The housing is detachably connected to the connecting part and is located on one side of the connecting part. The thermal pad is fixedly connected to the housing and is located on one side of the housing. The transistor is fixedly connected to the thermal pad and abuts against the abutting part. The stabilizing component is disposed on the housing.
[0008] The stabilizing component includes a support block and a fixing member. The support block is fixedly connected to the housing and abuts against the support portion. The fixing member is disposed on the support block.
[0009] The fixing component includes a first gasket and a second gasket. The first gasket is fixedly connected to the support block and is also fixedly connected to the support block. The second gasket is fixedly connected to the support block and is also fixedly connected to the support block.
[0010] The first gasket is provided with a bent support member, which is fixedly connected to the first gasket and abuts against the bent portion.
[0011] The connecting part is provided with an anti-slip pad, which is fixedly connected to the connecting part and located on one side of the connecting part.
[0012] This utility model discloses an integrated molded root spring sheet structure, comprising a support part, a connecting part, a bending part, an abutting part, and a support device. The support device includes a housing, a thermally conductive pad, a transistor, and a stabilizing component. During the installation of the spring sheet, the connecting part abuts against the housing, so that the abutting part is pressed against the housing through the transistor and the thermally conductive pad. By setting the stabilizing component between the support part and the housing, the spring sheet can be stably supported, thereby improving the stability of heat conduction of the spring sheet and making it convenient to use. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of the overall structure of the integrated molded root spring sheet structure according to the first embodiment of this utility model.
[0015] Figure 2 This is a structural schematic diagram of the support device according to the first embodiment of the present invention.
[0016] In the figure: 101-support part, 102-connecting part, 103-bending part, 104-abutting part, 105-shell, 106-thermal conductive pad, 107-transistor, 108-support block, 109-first pad, 110-second pad, 111-bending support, 112-anti-slip pad. Detailed Implementation
[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0018] The first embodiment of this application is:
[0019] Please see Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of the overall structure of the integrated molded root spring sheet structure. Figure 2 This is a schematic diagram of the support device. This utility model provides an integrated molded root spring sheet structure: including a support part 101, a connecting part 102, a bending part 103, an abutment part 104, and a support device. The support device includes a housing 105, a thermally conductive pad 106, a transistor 107, and a stabilizing component. The stabilizing component includes a support block 108 and a fixing member. The fixing member includes a first pad 109 and a second pad 110. A bent support member 111 is provided on the first pad 109, and an anti-slip pad 112 is provided on the connecting part 102. The aforementioned solution solves the problem of inconvenient stable support of the spring sheet during installation, which affects the stability of heat conduction and makes use inconvenient. It is understood that the aforementioned solution can facilitate stable support of the spring sheet during installation, thereby improving the stability of heat conduction and making use convenient. It can also significantly improve the stability of the spring sheet.
[0020] In this specific embodiment, the connecting part 102 is located below the supporting part 101, the bending part 103 is located above the supporting part 101, and the abutting part 104 is located above the bending part 103. The included angle between the bending part and the supporting part 101 is 30° or 60°. The connecting part 102 is perpendicular to the supporting part 101. The connecting part 102 can be connected to the side wall of the external structure to fix the spring sheet. One end of the supporting part 101 is connected to the top of the connecting part 102 and is connected to the connecting part 102 at an angle. The device to be installed is placed on the top of the supporting part 101. The bending part 103 is connected to the other end of the supporting part 101 at an angle. The bending part 103 can press the device to be installed against the side wall of the external structure, so that the device to be installed fits tightly with the external structure.
[0021] The housing 105 is detachably connected to the connecting portion 102 and is located on one side of the connecting portion 102. The thermal pad 106 is fixedly connected to the housing 105 and is located on one side of the housing 105. The transistor 107 is fixedly connected to the thermal pad 106 and abuts against the abutment portion 104. The stabilizing component is disposed on the housing 105. The housing 105 abuts against the side wall of the connecting portion 102 and is fixed by bolts. The transistor 107 and the thermal pad 106 are sequentially disposed between the housing 105 and the abutment portion 104, such that the abutment portion 104 abuts against the transistor 107. The transistor 107 is essentially made of IGBT. The bending portion presses the abutment portion 104 against the transistor 107, thereby pressing it against the housing 105. This allows the heat generated by the spring sheet during operation to be quickly transferred to the housing 105 through the transistor 107 and the thermal pad 106, improving the heat dissipation effect of the spring sheet. The stabilizing component is provided between the support part 101 and the housing 105, which can stably support the support part 101, thereby making the state of the spring sheet on the housing 105 more stable. During the installation of the spring sheet, the connecting part 102 abuts against the housing 105, so that the abutting part 104 is pressed against the housing 105 through the transistor 107 and the thermal pad 106. By providing the stabilizing component between the support part 101 and the housing 105, it is easy to stably support the spring sheet, thereby improving the stability of heat conduction of the spring sheet and making it convenient to use.
[0022] Secondly, the support block 108 is fixedly connected to the housing 105 and abuts against the support portion 101; the first gasket 109 is fixedly connected to the support block 108 and is also fixedly connected to the support block 108; the second gasket 110 is fixedly connected to the support block 108 and is also fixedly connected to the support block 108. The support block 108 is fixed to the upper surface of the housing 105, and is located between the housing 105 and the support portion 101. The top end of the support block 108 abuts against the left side of the lower surface of the support portion 101, so that the support portion can be supported by the support block 108. The support block 108 provides support, thereby improving the stability of the support block 108 and the stability of the spring sheet. The first pad 109 and the second pad 110 are fixed to the top of the left and right sides of the support block 108, respectively. The bottom ends of the first pad 109 and the second pad 110 are respectively inclined and fixed to the side of the housing 105 away from the support block 108, so that the first pad 109, the second pad 110 and the housing 105 form a triangle. The triangle has stability, thereby improving the stability of the support block 108 and the stability of supporting the support block 101.
[0023] Meanwhile, the curved support 111 is fixedly connected to the first gasket 109 and abuts against the bent portion 103. The curved support 111 is fixed on the inclined surface of the first gasket 109. The top end of the curved support 111 abuts against the bottom end of the bent portion 103, thereby supporting the bent portion 103, further improving the stability of the spring sheet support, and thus improving the heat conduction effect.
[0024] In addition, the anti-slip pad 112 is fixedly connected to the connecting part 102 and is located on one side of the connecting part 102. The anti-slip pad 112 is provided at the bottom end of the connecting part 102. The anti-slip pad 112 is made of anti-slip and heat-resistant material. The connecting part 102 is placed on the housing 105 through the anti-slip pad 112, which increases the resistance generated between the connecting part 102 and the housing 105, thereby improving the stability of the connecting part 102 on the housing 105, and further improving the stability of the spring sheet.
[0025] When using the integrated molded root spring sheet structure of this embodiment, during the installation of the spring sheet, the connecting part 102 abuts against the housing 105, so that the abutting part 104 is pressed against the housing 105 through the transistor 107 and the thermal pad 106. By providing the stabilizing component between the support part 101 and the housing 105, the spring sheet can be stably supported, thereby improving the stability of heat conduction of the spring sheet and making it convenient to use.
[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. An integrated molded root spring sheet structure, comprising a support portion, a connecting portion, a bending portion, and an abutting portion, wherein the connecting portion is located below the support portion, the bending portion is located above the support portion, and the abutting portion is located above the bending portion, characterized in that: It also includes support devices; The support device includes a housing, a thermal pad, a transistor, and a stabilizing component. The housing is detachably connected to the connecting part and is located on one side of the connecting part. The thermal pad is fixedly connected to the housing and is located on one side of the housing. The transistor is fixedly connected to the thermal pad and abuts against the abutting part. The stabilizing component is disposed on the housing. The stabilizing component includes a support block and a fixing member. The support block is fixedly connected to the housing and abuts against the support portion. The fixing member is disposed on the support block. The fixing component includes a first gasket and a second gasket. The first gasket is fixedly connected to the support block and is also fixedly connected to the support block. The first gasket is provided with a bent support member, which is fixedly connected to the first gasket and abuts against the bent portion; An anti-slip pad is provided on the connecting part, and the anti-slip pad is fixedly connected to the connecting part and located on one side of the connecting part.