Novel aluminum shell resistor

Abstract

The novel aluminum shell resistor comprises a resistor shell and a packaging assembly, a resistor body is packaged in the resistor shell, an insulating layer is arranged on the inner wall of the resistor shell, the resistor shell is provided with a front sealing opening and a rear sealing opening corresponding to the front end and the rear end of the resistor body, and a magnesium oxide layer is filled between the surface of the resistor body and the inner wall of the resistor shell; the resistor body is assembled in the resistor shell in a sealing mode through the packaging assembly, the insulating layer is arranged in the resistor shell to ensure the insulating performance of the resistor structure, the magnesium oxide layer is filled between the resistor shell and the resistor body, and the magnesium oxide layer is filled between the resistor shell and the resistor body. Heat generated by the resistor body is transmitted to the aluminum shell through the magnesium oxide and then dissipated to the air, the resistor is prevented from being damaged by high temperature, the electrical performance of the resistor is ensured, and the resistor has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of resistors, in particular to a novel aluminum shell resistor. Background Art

[0002] Aluminum shell resistor, the shell is made of aluminum alloy, with heat dissipation grooves on the surface, small size and high power, high temperature resistance, strong overload capacity, weather resistance, high precision, standard low induction resistance, high stability, strong structure, its flexibility is good, multiple combination options, conducive to mechanical protection, easy installation and use.

[0003] The aluminum-shell brake resistors currently used around inverters all have a porcelain tube structure inside, with both ends sealed with sealing sand or aluminum blocks, which has low labor efficiency. In addition, the internal sealing can be easily damaged by impact during use, thus affecting the use of the aluminum-shell resistors. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a novel aluminum shell resistor with a simple and reasonable assembly structure, stable and reliable use, and good heat dissipation effect.

[0005] The technical solution adopted by the utility model is: a novel aluminum shell resistor, including a resistor shell and a packaging component, the resistor shell encapsulates a resistor body, the inner wall of the resistor shell is provided with an insulating layer, the resistor shell is provided with a front seal and a rear seal corresponding to the front and rear ends of the resistor body, and a magnesium oxide layer is filled between the surface of the resistor body and the inner wall of the resistor shell; the packaging component includes a front plug and a rear plug located at the front seal and the rear seal, and the front plug and the rear plug are fixed in the front seal and the rear seal of the resistor shell by self-tapping screws.

[0006] In this technical solution, the resistor body is sealed and assembled in the resistor shell through a packaging component. The resistor shell has an insulating layer to ensure the insulation performance of the resistor structure. Since a magnesium oxide layer is filled between the resistor shell and the resistor body, the heat generated by the resistor body is transferred to the aluminum shell through the magnesium oxide and then dissipated to the air, thereby preventing the resistor from being damaged by high temperature and ensuring its electrical performance.

[0007] Preferably, the resistor body is connected to a connecting piece, the connecting piece is connected to a conversion terminal fixed in the front plug, and the conversion terminal is connected to a high-temperature resistant power line.

[0008] Preferably, one end of the conversion terminal is provided with a connection socket for connecting a high-temperature resistant power line.

[0009] Preferably, the conversion terminal is fixed to the front plug by self-tapping screws.

[0010] Preferably, the front plug and the rear plug are arranged in the front seal and the rear seal by an injection molding process.

[0011] Preferably, the resistor shell is an aluminum metal shell.

[0012] The beneficial effects of the utility model are as follows: the resistor body in the utility model is sealed and assembled in the resistor shell through the packaging component, and the resistor shell has an insulating layer to ensure the insulation performance of the resistor structure. Since a magnesium oxide layer is filled between the resistor shell and the resistor body, the heat generated by the resistor body is transferred to the aluminum shell through the magnesium oxide and then dissipated to the air, thereby avoiding damage to the resistor due to high temperature, ensuring its electrical performance, and having high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0014] Figure 1 This is a cross-sectional view of a novel aluminum shell resistor provided in an embodiment of the present utility model.

[0015] Figure numerals: resistor shell 1, resistor body 2, insulation layer 3, magnesium oxide layer 4, front plug 5, rear plug 6, self-tapping screw 7, connecting piece 8, conversion terminal 9, high temperature resistant power line 10. DETAILED DESCRIPTION

[0016] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0017] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0018] like Figure 1 As shown, a specific embodiment of the present invention provides a new type of aluminum shell resistor, which has good sealing and heat dissipation effects; it specifically includes a resistor shell 1 and a packaging assembly, the resistor shell 1 encapsulates a resistor body 2, the inner wall of the resistor shell 1 is provided with an insulating layer 3, the resistor shell 1 is provided with a front seal and a rear seal corresponding to the front and rear ends of the resistor body 2, and a magnesium oxide layer 4 is filled between the surface of the resistor body 2 and the inner wall of the resistor shell 1; the packaging assembly includes a front plug 5 and a rear plug 6 located at the front seal and the rear seal, and the front plug 5 and the rear plug 6 are fixed in the front seal and the rear seal of the resistor shell 1 by self-tapping screws 7.

[0019] like Figure 1As shown, through the above arrangement, the resistor body 2 in this embodiment is sealed and assembled in the resistor shell 1 through the packaging component. The resistor shell 1 has an insulating layer 3 to ensure the insulation performance of the resistor structure. Since the resistor shell 1 and the resistor body 2 are filled with a magnesium oxide layer 4, the heat generated by the resistor body 2 is transferred to the aluminum shell through the magnesium oxide and then dissipated to the air, thereby avoiding damage to the resistor due to high temperature and ensuring its electrical performance.

[0020] like Figure 1 As shown, in order to enable the resistor to be installed in the corresponding circuit, the resistor body 2 in this embodiment is connected to a connecting piece 8, and the connecting piece 8 is connected to a conversion terminal 9 fixed in the front plug 5, and the conversion terminal 9 is connected to a high-temperature resistant power line 10. In this way, the resistor body 2, the connecting piece 8 and the conversion terminal 9 can be connected to the corresponding control circuit after being connected in series. In order to facilitate the connection of the power line, this embodiment is provided with a connection socket for the high-temperature resistant power line 10 at one end of the conversion terminal 9. The power line can be quickly connected through the socket structure, which is convenient for plugging and unplugging. In actual application, the conversion terminal 9 is fixed to the front plug 5 by a self-tapping screw 7 to prevent the terminal structure from falling off.

[0021] like Figure 1 As shown, during production, the front plug 5 and rear plug 6 are placed within the front and rear seals via an injection molding process. After injection molding, the front and rear seals are completely sealed, ensuring a tight assembly. Furthermore, the resistor housing 1 is an aluminum metal housing. The new aluminum-cased resistor in this embodiment was tested in accordance with GB5729 and IEC61373, demonstrating excellent performance in short-term overload shock, insulation resistance, load life, 720H ​​salt spray testing, and shock resistance.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A new type of aluminum shell resistor, characterized by; include A resistor shell (1), wherein a resistor body (2) is encapsulated in the resistor shell (1), an insulating layer (3) is provided on the inner wall of the resistor shell (1), a front seal and a rear seal are provided on the resistor shell (1) corresponding to the front and rear ends of the resistor body (2), and a magnesium oxide layer (4) is filled between the surface of the resistor body (2) and the inner wall of the resistor shell (1); The packaging assembly comprises a front plug (5) and a rear plug (6) located at the front seal and the rear seal, wherein the front plug (5) and the rear plug (6) are fixed in the front seal and the rear seal of the resistor housing (1) by self-tapping screws (7).

2. The novel aluminum shell resistor according to claim 1, It is characterized by: The resistor body (2) is connected to a connecting piece (8), the connecting piece (8) is connected to a conversion terminal (9) fixed in the front plug (5), and the conversion terminal (9) is connected to a high-temperature resistant power line (10).

3. The novel aluminum shell resistor according to claim 2 is characterized in that ； One end of the conversion terminal (9) is provided with a connection socket for connecting a high-temperature resistant power line (10).

4. The novel aluminum shell resistor according to claim 2 is characterized in that ； The conversion terminal (9) is fixed to the front plug (5) via a self-tapping screw (7).

5. The novel aluminum shell resistor according to claim 1 is characterized in that ； The front plug (5) and the rear plug (6) are arranged in the front seal and the rear seal by an injection molding process.

6. The novel aluminum shell resistor according to claim 1 is characterized in that ； The resistor shell (1) is an aluminum metal shell.

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