IGBT module fixing structure of PTC heater and PTC heater

A fixed structure, heater technology, applied in heating elements, ohmic resistance heating parts, electric solid devices, etc., can solve the problem of relative position deviation of IGBT modules, ensure reliability and feasibility, improve EMC effect, zero The effect of fewer parts

Pending Publication Date: 2020-11-17
SHANGHAI VMAX NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problem that the relative position of the IGBT module is easily deviated when the IGBT module is fixed in the above-mentioned prior art, the present invention proposes an IGBT module fixing structure of the PTC heater and a PTC heater

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  • IGBT module fixing structure of PTC heater and PTC heater

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Embodiment Construction

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0019] In describing the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", " The orientation or positional relation...

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Abstract

The invention discloses an IGBT module fixing structure of a PTC heater and the PTC heater, and the structure comprises a control box housing of the PTC heater, an IGBT module which is installed on the control box housing, an insulating pad which is disposed between the IGBT module and the control box housing, and a positioning plate which limits the sliding of the IGBT module relative to the control box housing through the arrangement of a positioning pin. And the pressing strip mech anism is arranged on the control box shell and is used for pressing the positioning plate. According to the invention, the bottom surface of the positioning plate is provided with the positioning pins which respectively pass through the IGBT module and the control box shell to limit the relative sliding between the IGBT module and the control box shell, and the top surface of the positioning plate is pressed by the pressing strip mechanism to limit the up-and-down movement of the positioning plate, so that the IGBT module is fixed on the control box shell. Reliability and feasibility of assembly can be guaranteed, the EMC effect is improved, the structure is simple, the number of parts is small, and cost is low.

Description

technical field [0001] This patent relates to the technical field of PTC heaters, in particular to an IGBT module fixing structure of the PTC heater and the PTC heater. Background technique [0002] PTC heater has the characteristics of fast starting speed, good temperature control, high working reliability, energy saving and long service life, so it is widely used in the manufacture of various electric heating appliances, and even as a current limiter, filter protector, overload An important part of control and protection devices such as protectors. At this stage, PTC heaters are often configured on new energy electric vehicles for battery thermal management and air conditioning heating. [0003] As the core component of the PTC heater controller, the IGBT module has a decisive requirement on the overall PTC performance. In addition to its own performance, its assembly reliability also greatly affects its working reliability. At present, the fixing methods of the IGBT mod...

Claims

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Application Information

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IPC IPC(8): H05B3/06H01L23/32
CPCH01L23/32H05B3/06
Inventor 韩永杰刘钧纪科星周立军
Owner SHANGHAI VMAX NEW ENERGY CO LTD
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