Direct current contactor with waterproof function

Abstract

The utility model relates to the technical field of direct current contactors, in particular to a direct current contactor with a waterproof function, which comprises a contactor outer shell, a contactor inner shell arranged inside the contactor outer shell, a fixed connecting column arranged on the inner side surface of the contactor inner shell, and a sealing cover connected with the upper end of the fixed connecting column. A heat conduction hole is formed in the bottom of the contactor outer shell, a heat dissipation assembly is connected to the heat conduction hole, and a semiconductor refrigeration piece is connected to one side face of the heat dissipation assembly. According to the utility model, the contactor inner shell is arranged inside the contactor outer shell, and the port of the contactor inner shell is connected with the sealing cover through the fixing screw, so that the sealing performance of the contactor inner shell is improved, the waterproof performance is also greatly improved, and the semiconductor refrigeration piece on one side surface of the heat dissipation assembly is fixed inside the heat conduction hole of the contactor inner shell. And fixed connection is realized in an adhesive binding manner, so that the waterproof performance of the contactor outer shell can be ensured, and the heat dissipation performance of the contactor outer shell can be improved.

Description

Technical Field

[0001] The utility model relates to a DC contactor, in particular to a DC contactor with a waterproof function, belonging to the technical field of DC contactors. Background Art

[0002] The existing DC contactor product structure is too simple. There are often large gaps between the shells during installation, so more air or water vapor will enter, and the sealing is poor, which seriously reduces the service life of internal components. Contactors with better sealing cannot dissipate heat into the air, so the service life of the contactor is greatly reduced.

[0003] Therefore, there is an urgent need to improve the DC contactor to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a DC contactor with a waterproof function, wherein the inner shell of the contactor is arranged inside the outer shell of the contactor, and at the same time, a sealing cover is connected to the port of the inner shell of the contactor by fixing screws, so as to improve the sealing of the inner shell of the contactor and greatly improve the waterproof performance; the semiconductor refrigeration component on one side of the heat dissipation component is fixed inside the heat conduction hole of the inner shell of the contactor and fixedly connected by gluing, so as to ensure the waterproofness of the outer shell of the contactor and improve the heat dissipation performance of the outer shell of the contactor.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0006] A DC contactor with waterproof function, comprising a contactor outer shell, a contactor inner shell fixedly arranged inside the contactor outer shell, a plurality of evenly distributed fixed connection columns arranged on the inner side surface of the contactor inner shell, and a sealing cover connected to the upper end of the fixed connection column by a fixing screw;

[0007] A heat conduction hole is provided at the bottom of the contactor outer shell, a heat dissipation component is connected to the heat conduction hole, a semiconductor refrigeration component is connected to one side of the heat dissipation component, and the semiconductor refrigeration component is fixedly connected to the heat conduction hole by gluing.

[0008] Preferably, the contactor inner shell is fixedly arranged at the bottom of the inner side of the contactor outer shell, and the outer side of the contactor outer shell is provided with a plurality of centrally symmetrical ventilation components, which are connected to the interior of the contactor outer shell and are not connected to the contactor inner shell.

[0009] Preferably, the upper end surface of the fixed connection column is lower than the upper end surface of the contactor inner shell, and a sealing gasket is provided between the sealing cover and the contactor inner shell.

[0010] Preferably, the bottom of the outer side of the contactor housing is provided with symmetrically distributed fixing feet, the bottom of the fixing feet protrudes from the bottom of the contactor housing, and the fixing feet are provided with fixing foot mounting holes.

[0011] Preferably, the lower side of the heat dissipation component is recessed in the lower side of the fixed leg, the heat dissipation component comprises a plurality of centrally symmetrical copper heat dissipation fins, and the diameter of the heat dissipation component is smaller than the diameter of the contactor outer shell.

[0012] Preferably, the semiconductor refrigeration element comprises a refrigeration element heat absorbing surface and a refrigeration element heat releasing surface, the refrigeration element heat absorbing surface is arranged inside the contactor outer shell, and the refrigeration element heat releasing surface is arranged outside the contactor outer shell.

[0013] Preferably, a main circuit lead-out wire connection platform and a coil lead-out wire connection platform are fixedly provided on the outer side of the sealing cover, and the main circuit lead-out wire connection platform is provided with the main circuit lead-out wire, and the main circuit lead-out wire includes a positive lead-out wire and a negative lead-out wire, and the coil lead-out wire connection platform is connected to the coil lead-out wire.

[0014] Preferably, a fan-shaped magnet is fixedly disposed on the bottom of the fixed foot.

[0015] The utility model has at least the following beneficial effects:

[0016] The inner shell of the contactor is arranged inside the outer shell of the contactor. At the same time, a sealing cover is connected to the port of the inner shell of the contactor by fixing screws, which improves the sealing of the inner shell of the contactor and greatly improves the waterproof performance. The semiconductor refrigeration component on one side of the heat dissipation component is fixed inside the heat conduction hole of the inner shell of the contactor and fixedly connected by gluing. Therefore, it can ensure the waterproofness of the outer shell of the contactor and improve the heat dissipation performance of the outer shell of the contactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 The three-dimensional Figure 1 ;

[0019] Figure 2 The three-dimensional Figure 2 ;

[0020] Figure 3 This is a structural diagram of the inner shell of the contactor of the utility model;

[0021] Figure 4 The three-dimensional Figure 3 ;

[0022] Figure 5 It is a three-dimensional diagram of the heat dissipation component of the utility model;

[0023] Figure 6 It is a bottom view of the inner shell of the contactor of the present utility model.

[0024] In the figure, 1-contactor outer shell, 101-ventilation component, 2-contactor inner shell, 201-fixed connecting column, 202-heat conduction hole, 3-sealing cover, 301-main circuit lead-out connection platform, 302-coil lead-out connection platform, 4-main circuit lead-out line, 401-positive lead-out line, 402-negative lead-out line, 5-fixed foot, 501-fixed foot mounting hole, 6-coil lead-out line, 7-heat dissipation component, 701-copper heat sink, 8-semiconductor refrigeration component, 801-refrigeration component heat absorption surface, 802-refrigeration component heat release surface, 9-fixing screws, 10-sector magnet. DETAILED DESCRIPTION

[0025] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] like Figure 1-Figure 6 As shown, the DC contactor with waterproof function provided in this embodiment includes a contactor outer shell 1, a contactor inner shell 2 is fixedly arranged inside the contactor outer shell 1, a plurality of evenly distributed fixed connecting columns 201 are arranged on the inner side surface of the contactor inner shell 2, the upper end of the fixed connecting column 201 is connected to a sealing cover 3 by a fixing screw 9, the upper end surface of the fixed connecting column 201 is lower than the upper end surface of the contactor inner shell 2, and a sealing gasket is arranged between the sealing cover 3 and the contactor inner shell 2, the contactor inner shell 2 is arranged inside the contactor outer shell 1, the contactor outer shell 1 can protect the contactor inner shell 2, and at the same time, the fixing screw 9 is connected at the port of the contactor inner shell 2. There is a sealing cover 3 to improve the sealing of the inner shell 2 of the contactor, and the waterproof performance is also greatly improved. While ensuring the sealing of the inner shell 2 of the contactor, the temperature of the inner shell 2 of the contactor must be reduced. Therefore, a heat conduction hole 202 is opened at the bottom of the outer shell 1 of the contactor, and a heat dissipation component 7 is connected to the heat conduction hole 202. A semiconductor refrigeration component 8 is connected to one side of the heat dissipation component 7. The semiconductor refrigeration component 8 and the heat conduction hole 202 are fixedly connected by gluing. The semiconductor refrigeration component 8 on one side of the heat dissipation component 7 is fixed inside the heat conduction hole 202 of the inner shell 2 of the contactor and is fixedly connected by gluing. Therefore, the sealing of the inner shell 2 of the contactor can be ensured and the waterproof performance of the outer shell 1 of the contactor can be improved.

[0027] Further, such as Figure 1-Figure 4 As shown, the contactor inner shell 2 is fixedly arranged at the bottom of the inner side of the contactor outer shell 1, and the outer side of the contactor outer shell 1 is provided with a plurality of ventilation components 101 which are centrally symmetrical, the ventilation components 101 are connected with the inside of the contactor outer shell 1 and are not connected with the contactor inner shell 2, the contactor inner shell 2 and the contactor outer shell 1 are not in contact with each other, and the outer side of the contactor outer shell 1 is also provided with a plurality of ventilation components 101, so that the airflow can dissipate heat to the contactor inner shell 2 through the ventilation components 101;

[0028] In addition, if Figure 5 As shown, the semiconductor refrigeration element 8 includes a refrigeration element heat absorption surface 801 and a refrigeration element heat release surface 802. The refrigeration element heat absorption surface 801 is arranged inside the contactor outer shell 1, and the refrigeration element heat release surface 802 is arranged outside the contactor outer shell 1. The semiconductor refrigeration element 8 on the heat dissipation component 7 is fixedly arranged on the contactor outer shell 1 and the contactor inner shell 2. Therefore, the refrigeration element heat absorption surface 801 on the semiconductor refrigeration element 8 can absorb the heat on the contactor inner shell 2 and dissipate it to the heat dissipation component 7 through the refrigeration element heat release surface 802. The lower side surface of the heat dissipation component 7 is recessed in the lower side surface of the fixed foot 5. The heat dissipation component 7 includes a plurality of centrally symmetrical copper heat sinks 701. The diameter of the heat dissipation component 7 is smaller than the diameter of the contactor outer shell 1. The heat dissipation component 7 dissipates heat into the air through the plurality of copper heat sinks 701 to achieve the purpose of heat dissipation of the contactor inner shell 2. Therefore, the waterproofness of the contactor outer shell 1 can be ensured, and the heat dissipation performance of the contactor outer shell 1 can be improved, thereby improving the service life of the contactor outer shell 1.

[0029] In this embodiment, if Figure 1 As shown, the bottom of the outer side of the contactor housing 1 is provided with symmetrically distributed fixing feet 5, the bottom of the fixing feet 5 protrudes from the bottom of the contactor housing 1, and the fixing feet 5 are provided with fixing foot mounting holes 501, and the contactor housing 1 can be fixed through the fixing foot mounting holes 501 on the fixing feet 5, thereby improving the stability of the contactor housing 1 and facilitating installation and improving the convenience of installation. At the same time, a fan-shaped magnet 10 is fixedly provided at the bottom of the fixing feet 5, and the fan-shaped magnet 10 can facilitate the positioning of the contactor housing 1 and improve the convenience of use.

[0030] Furthermore, if Figure 1 and Figure 2As shown, a main circuit lead-out wire connection platform 301 and a coil lead-out wire connection platform 302 are fixedly provided on the outer side of the sealing cover 3, a main circuit lead-out wire 4 is provided on the main circuit lead-out wire connection platform 301, and the main circuit lead-out wire 4 includes a positive lead-out wire 401 and a negative lead-out wire 402, and a coil lead-out wire 6 is connected to the coil lead-out wire connection platform 302. The wires are led out through the main circuit lead-out wire connection platform 301 and the coil lead-out wire connection platform 302 on the sealing cover 3, respectively, to avoid direct exposure of components inside the contactor inner shell 2 to the air, improve the waterproofness of the contactor inner shell 2, and further improve the service life of the contactor outer shell 1.

[0031] like Figure 1-Figure 6 As shown, the principle of the DC contactor with waterproof function provided in this embodiment is as follows:

[0032] The contactor inner shell 2 is arranged inside the contactor outer shell 1, and the contactor outer shell 1 can protect the contactor inner shell 2. At the same time, a sealing cover 3 is connected to the port of the contactor inner shell 2 through a fixing screw 9, so as to improve the sealing of the contactor inner shell 2 and greatly improve the waterproof performance. While ensuring the sealing of the contactor inner shell 2, it is also necessary to reduce the temperature of the contactor inner shell 2. Therefore, a heat conduction hole 202 is opened at the bottom of the contactor outer shell 1, and a heat dissipation component 7 is connected to the heat conduction hole 202. A semiconductor refrigeration component 8 is connected to one side of the heat dissipation component 7. The semiconductor refrigeration component 8 is fixedly connected to the heat conduction hole 202 by gluing. The semiconductor refrigeration component 8 on one side of the heat dissipation component 7 is fixed inside the heat conduction hole 202 of the contactor inner shell 2 and fixedly connected by gluing. Therefore, the waterproof performance of the contactor outer shell 1 can be ensured, and the heat dissipation performance of the contactor outer shell 1 can be improved, thereby improving the service life of the contactor outer shell 1.

[0033] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0034] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0035] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A DC contactor with waterproof function, comprising a contactor outer shell (1), characterized in that: A contactor inner shell (2) is fixedly arranged inside the contactor outer shell (1), a plurality of evenly distributed fixed connection columns (201) are arranged on the inner side surface of the contactor inner shell (2), and the upper ends of the fixed connection columns (201) are connected to the sealing covers (3) via fixing screws (9); A heat conduction hole (202) is provided at the bottom of the contactor outer shell (1), a heat dissipation component (7) is connected to the heat conduction hole (202), a semiconductor refrigeration component (8) is connected to one side of the heat dissipation component (7), and the semiconductor refrigeration component (8) is fixedly connected to the heat conduction hole (202) by gluing.

2. A DC contactor with waterproof function according to claim 1, characterized in that: The contactor inner shell (2) is fixedly arranged at the bottom of the inner side of the contactor outer shell (1); the outer side of the contactor outer shell (1) is provided with a plurality of centrally symmetrical ventilation components (101); the ventilation components (101) are connected to the interior of the contactor outer shell (1) and are not connected to the contactor inner shell (2).

3. A DC contactor with waterproof function according to claim 1, characterized in that: The upper end surface of the fixed connection column (201) is lower than the upper end surface of the contactor inner shell (2), and a sealing gasket is provided between the sealing cover (3) and the contactor inner shell (2).

4. A DC contactor with waterproof function according to claim 1, characterized in that: The bottom of the outer side surface of the contactor outer shell (1) is provided with symmetrically distributed fixing feet (5), the bottom of the fixing feet (5) protrudes from the bottom of the contactor outer shell (1), and the fixing feet (5) are provided with fixing foot mounting holes (501).

5. A DC contactor with waterproof function according to claim 4, characterized in that: The lower side surface of the heat dissipation component (7) is recessed in the lower side surface of the fixed foot (5); the heat dissipation component (7) comprises a plurality of centrally symmetrical copper heat dissipation fins (701); and the diameter of the heat dissipation component (7) is smaller than the diameter of the contactor outer shell (1).

6. A DC contactor with waterproof function according to claim 1, characterized in that: The semiconductor refrigeration element (8) comprises a refrigeration element heat absorption surface (801) and a refrigeration element heat release surface (802); the refrigeration element heat absorption surface (801) is arranged inside the contactor outer shell (1), and the refrigeration element heat release surface (802) is arranged outside the contactor outer shell (1).

7. A DC contactor with waterproof function according to claim 1, characterized in that: A main circuit lead-out wire connection platform (301) and a coil lead-out wire connection platform (302) are fixedly provided on the outer side surface of the sealing cover (3); a main circuit lead-out wire (4) is provided on the main circuit lead-out wire connection platform (301); the main circuit lead-out wire (4) comprises a positive electrode lead-out wire (401) and a negative electrode lead-out wire (402); and a coil lead-out wire (6) is connected to the coil lead-out wire connection platform (302).

8. A DC contactor with waterproof function according to claim 4, characterized in that: A sector-shaped magnet (10) is fixedly arranged at the bottom of the fixed foot (5).

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