A small resistor structure

Abstract

The utility model relates to the technical field of semiconductors, and in particular to a small resistor structure, which can make the resistor not easily moved by external forces, ensure the normal operation of a circuit board, improve the efficiency of heat dissipation, and reduce the heat of the resistor; it comprises a resistor body, the left and right sides of the resistor body are connected with wiring terminals, the resistor body is installed inside a mounting seat, the left and right ends of the resistor body are installed with sealing plates, which are sealed and connected to the inside of the mounting seat through the sealing plates, a connecting component is installed at the bottom of the mounting seat, a heat dissipation component is installed on the mounting seat, and a sealing component is installed on the top of the mounting seat.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductors, in particular to a small resistor structure. Background Art

[0002] Resistors are the most widely used electronic components in electronic circuits. The functions of resistors in circuits include reducing voltage, distributing voltage, limiting current, etc. Prior art publication number CN102479586A proposes a high-voltage resistor with a side-support structure, including a resistor outer box, a resistor unit, a mounting frame, an indoor post insulator, and a string rod. The mounting frames are provided in an even number, and every two mounting frames are fixed in parallel on the inner walls of both sides of the resistor outer box. Each mounting frame is fixedly connected to two indoor post insulators respectively, and the indoor post insulator shown is connected to the resistor unit through a string rod. However, since the lead wire of the resistor is small and thin, it is easy to change its position when it is subjected to external force, thereby affecting other adjacent resistors. The heat dissipation efficiency of the resistor body is low, and the maintenance of the resistor body is more troublesome. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a small resistor structure which can prevent the resistor from being easily moved by external forces, thereby ensuring the normal operation of the circuit board, improving the heat dissipation efficiency, and reducing the heat of the resistor.

[0004] The utility model discloses a small resistor structure, comprising a resistor body, the left and right sides of the resistor body are connected with wiring terminals, the resistor body is installed inside a mounting base, the left and right ends of the resistor body are installed with sealing plates, which are sealed and connected to the inside of the mounting base through the sealing plates, a connecting component is installed at the bottom of the mounting base, a heat dissipation component is installed on the mounting base, and a sealing component is installed on the top of the mounting base; when in use, the mounting base is installed on a circuit board through the connecting component, which is convenient for fixing the resistor body and the circuit board, so that the resistor body is not easily moved by external forces, thereby ensuring the normal operation of the circuit board and protecting the resistor body at the same time, the heat dissipation component can improve the efficiency of heat dissipation and reduce the heat of the resistor, and the mounting base can be opened through the sealing component for easy maintenance.

[0005] Preferably, the sealing assembly includes a sealing cover, and the four corners of the sealing cover are respectively installed on the top of the resistor body by fixing bolts to seal the top of the mounting seat; the sealing cover is removed at the top of the mounting seat to facilitate the inspection and maintenance of the resistor body.

[0006] Preferably, a sealing groove is provided at the top of the mounting seat, and a sealing gasket matching the sealing groove is fixedly installed at the bottom of the sealing cover; when the sealing cover is installed on the top of the mounting seat, the sealing gasket is driven into the sealing groove to improve the sealing effect on the inside of the mounting seat.

[0007] Preferably, a threaded sleeve is provided in the middle of the sealing cover, a threaded column is screwed in the middle of the threaded sleeve, an adjustment groove is provided on the top of the threaded column, and a pressure plate is rotatably installed on the bottom of the threaded column; after the sealing cover is installed on the top of the mounting seat, the threaded column is rotated to move downward to drive the pressure plate to move downward and press the resistor body, thereby ensuring the stability of the resistor body.

[0008] Preferably, the connecting assembly includes two metal sliders, two metal connecting plates, two supporting pads, two connecting studs and two nuts. Adjustment slots are opened on the left and right sides of the bottom of the mounting seat, and the metal slider is slidably installed in the adjusting slot. A metal connecting plate is installed on the top of the adjusting slot. The upper part of the metal connecting plate passes through the bottom of the mounting seat and is located at the left and right ends of the interior of the mounting seat, and an extension plate is provided on the upper part of the metal connecting plate. The bottom of the extension plate is connected with a supporting pad, and the supporting pad contacts with the interior of the mounting seat. The terminal is connected to the extension plate of the metal connecting plate, and the bottom of the metal slider is connected with a connecting stud, and the nut is screwed on the connecting stud; the two connecting studs at the bottom end of the mounting seat are inserted into the corresponding jacks of the circuit board, and the connecting studs are threadedly connected to the circuit board through the nut, so that the top end of the metal slider is tightly pressed against the top wall in the adjusting slot, so that the mounting seat and the circuit board are fixed. It is suitable for circuit boards of different sizes, and the resistor body is fixed to the circuit board, so that the resistor body is not easily moved by external force, thereby ensuring the normal operation of the circuit board.

[0009] Preferably, the heat dissipation assembly includes a sealing knob, a plurality of first fins and a plurality of second fins. A liquid filling port is opened on the right side of the top of the sealing cover, and the sealing knob is sealingly installed at the liquid filling port. The front and rear ends of the mounting seat are fixedly connected with a plurality of first fins, and the top of the sealing cover is fixedly connected with a plurality of second fins. The first fins and the second fins are copper foil or aluminum foil, and are arranged vertically on the mounting seat. The sealing gasket is opened and coolant is added into the mounting seat. The coolant takes away the heat of the resistor body, and the coolant is cooled by the first fins and the second fins to improve the heat dissipation efficiency of the resistor body.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when in use, the mounting base is installed on the circuit board through the connecting component, which is convenient for fixing the resistor body and the circuit board, so that the resistor body is not easily moved by external force, thereby ensuring the normal operation of the circuit board and protecting the resistor body at the same time. The heat dissipation component can improve the heat dissipation efficiency and reduce the heat of the resistor. The mounting base can be opened through the sealing component for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the lower three-dimensional structure of the utility model;

[0013] Figure 3 It is a front cross-sectional structural schematic diagram of the utility model;

[0014] Figure 4 It is a left-side cross-sectional structural schematic diagram of the utility model;

[0015] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model viewed from above;

[0016] Markings in the accompanying drawings: 1. resistor body; 2. terminal; 3. mounting base; 4. sealing cover; 5. sealing gasket; 6. threaded sleeve; 7. threaded column; 8. pressure plate; 9. sealing plate; 10. metal slider; 11. metal connecting plate; 12. supporting pad; 13. connecting stud; 14. nut; 15. sealing knob; 16. first fin; 17. second fin. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] like Figures 1 to 5 As shown, the left and right sides of the resistor body 1 are connected with the terminal 2, the resistor body 1 is installed inside the mounting seat 3, the left and right ends of the resistor body 1 are installed with sealing plates 9, and the sealing plates 9 are sealed and connected with the inside of the mounting seat 3, the four corners of the sealing cover 4 are respectively installed on the top of the resistor body 1 through fixing bolts to seal the top of the mounting seat 3, the middle of the sealing cover 4 is provided with a threaded sleeve 6, the threaded column 7 is screwed on the middle of the threaded sleeve 6, the top of the threaded column 7 is provided with an adjustment groove, the bottom of the threaded column 7 is rotatably installed with a pressing plate 8, the bottom of the mounting seat 3 is provided with adjustment slide grooves on the left and right, the metal slider 10 is slidably installed in the adjustment slide groove, the top of the adjustment slide groove is provided with a metal connecting piece 11, the metal connecting piece 11 The upper part passes through the bottom of the mounting seat 3 and is located at the left and right ends of the interior of the mounting seat 3, and an extension plate is provided on the upper part of the metal connecting piece 11, and a support pad 12 is connected to the bottom of the extension plate, and the support pad 12 contacts the interior of the mounting seat 3, and the terminal 2 is connected to the extension plate of the metal connecting piece 11, and a connecting stud 13 is connected to the bottom of the metal slider 10, and a nut 14 is screwed on the connecting stud 13, and a liquid injection port is opened on the right side of the top of the sealing cover 4, and a sealing knob 15 is sealed and installed at the liquid injection port, and a plurality of first fins 16 are fixedly connected to the front and rear ends of the mounting seat 3, and a plurality of second fins 17 are fixedly connected to the top of the sealing cover 4, and the first fins 16 and the second fins 17 are copper foil or aluminum foil, and are arranged vertically on the mounting seat 3;

[0019] Insert the two connecting studs 13 at the bottom of the mounting seat 3 into the corresponding jacks of the circuit board. The connecting studs 13 are threadedly connected to the circuit board through nuts 14, so that the top of the metal slider 10 is pressed against the top wall of the adjusting slide groove, so that the mounting seat 3 is fixed to the circuit board, which is suitable for circuit boards of different sizes. The resistor body 1 is fixed to the circuit board so that the resistor body 1 is not easily moved by external forces, thereby ensuring the normal operation of the circuit board. When the sealing cover 4 is installed on the top of the mounting seat 3, the sealing gasket 5 is driven to enter the sealing groove to improve the sealing effect of the inside of the mounting seat 3. After the sealing cover 4 is installed on the top of the mounting seat 3, the threaded column 7 is rotated to move downward to drive the pressure plate 8 to move downward to press the resistor body 1 to ensure the stability of the resistor body 1. The sealing cover 4 is removed from the top of the mounting seat 3 to facilitate the inspection of the resistor body 1. The sealing gasket 5 is opened to add coolant into the mounting seat 3. The coolant takes away the heat of the resistor body 1, and the coolant is cooled by the first fin 16 and the second fin 17 to improve the heat dissipation efficiency of the resistor body.

[0020] like Figures 1 to 5 As shown, a small resistor structure of the utility model is provided. When working, the two connecting studs 13 at the bottom end of the mounting seat 3 are inserted into the corresponding jacks of the circuit board. The connecting studs 13 are threadedly connected with the circuit board through nuts 14, so that the top of the metal slider 10 is pressed against the top wall of the adjusting slot, so that the mounting seat 3 is fixed to the circuit board, and the resistor body 1 is fixed to the circuit board, so that the resistor body 1 is not easily moved by external forces. When the sealing cover 4 is installed on the top of the mounting seat 3, the sealing gasket 5 is driven to enter the sealing groove. After the sealing cover 4 is installed on the top of the mounting seat 3, the threaded column 7 is rotated to move downward to drive the pressure plate 8 to move downward to press the resistor body 1 to ensure the stability of the resistor body 1. The sealing gasket 5 is opened to add coolant into the mounting seat 3. The coolant takes away the heat of the resistor body 1, and the coolant is cooled by the first fin 16 and the second fin 17.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A small resistor structure, characterized in that: The invention comprises a resistor body (1), the left and right sides of the resistor body (1) are connected to wiring terminals (2), the resistor body (1) is mounted inside a mounting seat (3), sealing plates (9) are mounted on the left and right ends of the resistor body (1), and the resistor body (1) is sealed and connected to the inside of the mounting seat (3) through the sealing plates (9), a connecting component is mounted on the bottom of the mounting seat (3), a heat dissipation component is mounted on the mounting seat (3), and a sealing component is mounted on the top of the mounting seat (3).

2. A small resistor structure as claimed in claim 1, characterized in that: The sealing assembly comprises a sealing cover (4), and the four corners of the sealing cover (4) are respectively mounted on the top of the resistor body (1) by means of fixing bolts to seal the top of the mounting seat (3).

3. A small resistor structure as claimed in claim 2, characterized in that: A sealing groove is provided on the top of the mounting seat (3), and a sealing gasket (5) matching the sealing groove is fixedly installed on the bottom of the sealing cover (4).

4. A small resistor structure as claimed in claim 2, characterized in that: A threaded sleeve (6) is arranged in the middle of the sealing cover (4), a threaded column (7) is screwed in the middle of the threaded sleeve (6), an adjustment groove is arranged at the top of the threaded column (7), and a pressure plate (8) is rotatably mounted at the bottom of the threaded column (7).

5. A small resistor structure as claimed in claim 1, characterized in that: The connection assembly comprises two metal sliders (10), two metal connecting plates (11), two support pads (12), two connecting studs (13) and two nuts (14). The bottom of the mounting seat (3) is provided with adjustment slots on the left and right sides. The metal sliders (10) are slidably installed in the adjustment slots. The top of the adjustment slots is provided with metal connecting plates (11). The upper part of the metal connecting plates (11) passes through the bottom of the mounting seat (3) and is located at the left and right ends of the interior of the mounting seat (3). The upper part of the metal connecting plates (11) is provided with extension plates. The bottom of the extension plates is connected with support pads (12). The support pads (12) are in contact with the interior of the mounting seat (3). The terminal (2) is connected with the extension plate of the metal connecting plates (11). The bottom of the metal sliders (10) is connected with connecting studs (13). Nuts (14) are screwed on the connecting studs (13).

6. A small resistor structure as claimed in claim 2, characterized in that: The heat dissipation component comprises a sealing knob (15), a plurality of first fins (16) and a plurality of second fins (17); a liquid injection port is provided on the right side of the top of the sealing cover (4); the sealing knob (15) is sealingly mounted at the liquid injection port; the front and rear ends of the mounting seat (3) are fixedly connected with the plurality of first fins (16); the top of the sealing cover (4) is fixedly connected with the plurality of second fins (17); the first fins (16) and the second fins (17) are copper foils or aluminum foils and are arranged vertically on the mounting seat (3).

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