Air-cooled DC-DC converter

Abstract

The utility model discloses an air-cooled DC-DC converter, comprising a housing, a PCB arranged in the housing and a joint arranged on the housing and connected with the PCB, the top of the housing is provided with a plurality of air inlet holes, two ends of the housing are provided with air outlet holes, the housing is fixedly connected with a first housing, and the first housing covers the air inlet holes; a mounting hole is formed in the first shell, and a cooling fan is arranged in the mounting hole; a mounting plate is further arranged in the shell, the mounting plate is made of a heat conduction material, the mounting plate is located above the PCB, a heating element on the PCB is attached to the mounting plate, and the mounting plate is fixedly connected with the side wall of the shell; heat-conducting glue is arranged between the mounting plate and the heating element, and heat-conducting glue is also arranged between the mounting plate and the shell. According to the utility model, rapid heat exchange of the converter can be realized in actual use, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of converters, in particular to an air-cooled DC-DC converter. Background Art

[0002] A DC-DC converter is a voltage converter that converts the input voltage and effectively outputs a fixed voltage. DC-DC converters are divided into three categories: step-up DC-DC converters, step-down DC-DC converters, and step-up / step-down DC-DC converters. Three types of control can be used according to requirements. PWM control is highly efficient and has good output voltage ripple and noise.

[0003] DC-DC converters generate a lot of heat during operation. To prevent them from being in a high-temperature working environment for a long time, which may cause rapid aging of internal electronic components, shorten their service life, or even damage them, the DC-DC converter needs to be cooled to accurately control its operating temperature.

[0004] In the prior art, a heat dissipation fan is directly used to dissipate heat inside the device, but the heat dissipation effect is poor and the heat dissipation efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to provide an air-cooled DC-DC converter, which can achieve rapid heat exchange of the converter and improve heat dissipation efficiency in actual use.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An air-cooled DC-DC converter includes a housing, a PCB board arranged in the housing, and a connector arranged on the housing and connected to the PCB board;

[0008] The top of the housing is provided with a plurality of air inlet holes, and both ends of the housing are provided with air outlet holes. A first housing is fixedly connected to the housing, and the first housing covers the air inlet holes.

[0009] The first housing is provided with a mounting hole, and a heat dissipation fan is provided in the mounting hole;

[0010] A mounting plate is also provided inside the shell. The mounting plate is made of heat-conducting material and is located above the PCB board. The heating element on the PCB board fits the mounting plate, and the mounting plate is fixedly connected to the side wall of the shell.

[0011] Wherein, thermal conductive glue is provided between the mounting plate and the heating element, and thermal conductive glue is also provided between the mounting plate and the housing.

[0012] Furthermore, threaded holes are provided on the shell, and the mounting plate is fixed to the shell by screws.

[0013] Preferably, the first shell and the outer shell are detachably connected by bolts.

[0014] Furthermore, a positioning hole is provided on the PCB board, a positioning plate is provided on the mounting plate, and a positioning foot that cooperates with the positioning hole is provided on the positioning plate.

[0015] Wherein, heat dissipation fins are arranged on the side wall of the shell.

[0016] Furthermore, a plurality of first air outlet holes are provided on the outer shell at positions between adjacent fins.

[0017] Wherein, an insect-proof net is arranged inside the shell, and the insect-proof net is used to cover the air outlet and the first air outlet.

[0018] Furthermore, a protective net is provided on the first shell for covering the installation hole.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model provides an air inlet on the upper part of the shell and air outlet holes at both ends of the shell, so that cold air can flow through the inside of the shell to cool down and dissipate heat for the PCB board; at the same time, in the present application, the contact between the provided mounting plate and the heating element on the PCB board and the heat conduction by the provided thermal conductive adhesive are achieved, so that the heating element can conduct heat to the mounting plate in the first time, and the purpose of rapid cooling can be achieved when air flows through. At the same time, the mounting plate is fixedly connected to the side wall of the shell, which can further improve the thermal conductivity efficiency and the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is one of the overall structural diagrams of the utility model.

[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the structure after removing the first shell.

[0024] Figure 3 This is the second schematic diagram of the overall structure of the utility model.

[0025] Figure 4This is a schematic diagram of the connection relationship between the mounting plate and the PCB board of the utility model.

[0026] Reference numerals:

[0027] 101-housing, 102-PCB board, 103-connector, 104-air inlet, 105-first housing, 106-mounting hole, 107-heat dissipation fan, 108-mounting plate, 109-threaded hole, 110-positioning hole, 111-positioning plate, 112-positioning support, 113-heat dissipation fin, 114-first air outlet, 115-heating element. DETAILED DESCRIPTION

[0028] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0032] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0034] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] See Figures 1-4 This embodiment discloses a converter, specifically an air-cooled DC / DC converter, including a housing 101, a PCB board 102 disposed within the housing 101, and a connector 103 disposed on the housing 101 and connected to the PCB board 102. The housing 101 has a plurality of air inlet holes 104 disposed on the top, and air outlet holes disposed at both ends. A first housing 105 is fixedly connected to the housing 101, and the first housing 105 covers the air inlet holes 104.

[0036] The first housing 105 is provided with a mounting hole 106 , and a heat dissipation fan 107 is provided in the mounting hole 106 ;

[0037] A mounting plate 108 is also provided inside the housing 101. The mounting plate 108 is made of heat-conducting material and is located above the PCB board 102. The heating element 115 on the PCB board 102 is in contact with the mounting plate 108. The mounting plate 108 is fixedly connected to the side wall of the housing 101.

[0038] The PCB board 102 is a PCB board structure in the prior art, and this application does not involve any improvement to the structure of the PCB board 102 .

[0039] Thermally conductive adhesive is provided between the mounting plate 108 and the heating element 115 , and thermally conductive adhesive is also provided between the mounting plate 108 and the housing 101 , so that the two can fit closely together, thereby improving the heat conduction effect.

[0040] In this embodiment, an air inlet is provided on the upper part of the shell 101, and air outlets are provided at both ends of the shell 101, so that cold air can flow through the interior of the shell 101 to cool down and dissipate heat for the PCB board 102; at the same time, in this application, the contact between the mounting plate 108 and the heating element 115 on the PCB board 102 is achieved, and heat is conducted by the thermally conductive adhesive provided so that the heating element 115 can conduct heat to the mounting plate 108 in the first time, and the purpose of rapid cooling can be achieved when air flows through. At the same time, the mounting plate 108 is fixedly connected to the side wall of the shell 101, which can further improve the thermal conductivity efficiency and improve the heat dissipation effect.

[0041] The utility model firstly realizes rapid heat conduction by heat conduction, and secondly adopts an air cooling method, which can effectively improve the heat exchange effect of the converter.

[0042] The housing 101 is provided with threaded holes 109 , and the mounting plate 108 is fixed to the housing 101 by screws, thereby achieving fixed installation of the mounting plate.

[0043] The first housing 105 and the housing 101 are detachably connected via bolts.

[0044] Furthermore, a positioning hole 110 is provided on the PCB board 102, a positioning plate 111 is provided on the mounting plate 108, and a positioning foot 112 is provided on the positioning plate 111 to cooperate with the positioning hole 110, so as to realize the positioning of the mounting plate 108 and the positioning plate 111, thereby improving assembly efficiency.

[0045] In some embodiments, heat dissipation fins 113 are provided on the side walls of the housing 101 , and the heat dissipation effect of the converter can be further improved by providing the heat dissipation fins 113 .

[0046] In some preferred implementation cases, a plurality of first air outlet holes 114 are provided on the housing 101 between adjacent fins.

[0047] The first air outlet 114 can further improve the heat dissipation efficiency when air flows through the heat dissipation fins 113 .

[0048] Furthermore, an insect-proof net is provided inside the housing 101, and the insect-proof net is used to cover the air outlet and the first air outlet 114 to achieve the purpose of preventing insects and prevent short circuits caused by insects entering.

[0049] Furthermore, a protective net is provided on the first housing 105 to cover the mounting hole 106 .

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air-cooled DC-DC converter comprising a housing, a PCB disposed within the housing, and a connector disposed on the housing and connected to the PCB, characterized in that: The top of the housing is provided with a plurality of air inlet holes, and both ends of the housing are provided with air outlet holes. A first housing is fixedly connected to the housing, and the first housing covers the air inlet holes. The first housing is provided with a mounting hole, and a heat dissipation fan is provided in the mounting hole; A mounting plate is also provided inside the housing. The mounting plate is made of a heat-conducting material. The mounting plate is located above the PCB board. The heating element on the PCB board fits in the mounting plate. The mounting plate is fixedly connected to the side wall of the housing. Thermal conductive adhesive is provided between the mounting plate and the heating element, and thermal conductive adhesive is also provided between the mounting plate and the housing.

2. The air-cooled DC-DC converter according to claim 1, characterized in that: The shell is provided with threaded holes, and the mounting plate is fixed to the shell by screws.

3. The air-cooled DC-DC converter according to claim 1, wherein: The first shell and the outer shell are detachably connected by bolts.

4. The air-cooled DC-DC converter according to claim 1, characterized in that: The PCB board is provided with positioning holes, the mounting board is provided with a positioning plate, and the positioning plate is provided with positioning feet that match the positioning holes.

5. The air-cooled DC-DC converter according to any one of claims 1 to 4, characterized in that: Heat dissipation fins are arranged on the side walls of the shell.

6. The air-cooled DC-DC converter according to claim 5, characterized in that: A plurality of first air outlet holes are arranged on the outer shell at positions between adjacent fins.

7. The air-cooled DC-DC converter according to claim 5, characterized in that: An insect-proof net is arranged inside the shell, and the insect-proof net is used for covering the air outlet and the first air outlet.

8. The air-cooled DC-DC converter according to any one of claims 1 to 4, characterized in that: The first shell is provided with a protection net for covering the installation hole.

Images