A transistor single tube mounting structure and an inverter comprising the same

Abstract

The utility model discloses a transistor single -tube mounting structure and and contain its inverter, the mounting structure includes single -tube pressure seat, pressure seat cover and elastic sheet, and the top of single -tube pressure seat is equipped with elastic sheet groove, and the elastic sheet is equipped in the elastic sheet groove, and the pressure seat cover is pressed to the single -tube pressure seat, and one end bottom of single -tube pressure seat is equipped with single -tube pressure groove, and the both sides of single -tube pressure groove are equipped with single -tube clamping groove wall, and the top of pressure seat cover is equipped with cylinder cover and a plurality of hole inner dog -claw, and a plurality of hole inner dog -claw evenly distribute in the outside of cylinder cover, and all be equipped with corresponding screw through -hole on single -tube pressure seat, pressure seat cover and elastic sheet. The utility model has the advantages of: convenient combination into row, compact structure, solve the difficulty of existing in the production assembly transistor, improve production efficiency, save time and cost, and solve the problem that transistor is easy to shake in the process of locking screw of prior art, and the sharp angle of transistor is easy to scratch the insulating paper.

Description

Technical Field

[0001] This utility model relates to the field of transistor mounting structures, and in particular to a single transistor mounting structure and an inverter containing the same. Background Technology

[0002] Inverters use multiple transistors in their design to achieve product functions. When a large number of transistors are used, the installation process becomes difficult. In the current low-cost installation process, the bottom of the transistor is isolated from the heat sink with insulating paper, and the pins are first soldered to the PCB and then tightened. During the tightening process, the rotation force of the screw can easily scratch the sharp corners of the transistor and tear the insulating paper, posing a risk. In addition, it is also difficult to accurately locate the holes during installation, resulting in low installation efficiency and high time costs. Utility Model Content

[0003] One of the purposes of this invention is to provide a single-transistor mounting structure to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A single-transistor mounting structure includes a single-transistor holder, a holder cover, and a spring clip. The top surface of the single-transistor holder is provided with a spring clip groove, and the spring clip is disposed in the spring clip groove. The holder cover is pressed onto the single-transistor holder. One end of the single-transistor holder has a single-transistor pressing groove at its bottom. The two sides of the single-transistor pressing groove have single-transistor clamping groove walls. The top of the holder cover is provided with a cylindrical sleeve and a plurality of internal clamping claws, and the plurality of internal clamping claws are evenly distributed on the outer side of the cylindrical sleeve.

[0005] Furthermore, the single-tube pressure seat, the pressure seat cover plate, and the spring sheet are all provided with corresponding screw through holes, and the screw through holes of the pressure seat cover plate are located inside the cylindrical sleeve.

[0006] Furthermore, the single-tube clamping groove wall includes a spacer bar hole, which is provided on the side groove wall of the single-tube pressing groove. The side groove wall of the single-tube pressing groove is divided into several single clamping pieces through the spacer bar hole, and each single clamping piece has a spreading protrusion on its inner bottom.

[0007] Furthermore, the pressure seat cover plate is provided with side limiting protrusions on both sides, and the top of the single tube pressure seat is provided with side limiting grooves corresponding to the side limiting protrusions on both sides, and the side limiting protrusions are pressed into the side limiting grooves.

[0008] Furthermore, one end of the pressure seat cover plate is provided with an end limiting protrusion, and the top of one end of the single tube pressure seat is provided with an end limiting groove corresponding to the end limiting protrusion.

[0009] Furthermore, the number of the internal claws (22) is two, three, or four.

[0010] Furthermore, the bottom of the spreading protrusion (133) is a slope.

[0011] This utility model also discloses an inverter, including the transistor mounting structure, and further including a transistor (4), a heat sink (5) and a PCB board (6). The transistor mounting structure enables the installation and fixation of the transistor (4), the heat sink (5) and the PCB board (6).

[0012] Furthermore, the transistor (4) is provided with a second through hole (41), which corresponds to the screw through hole on the single-tube mounting structure of the transistor.

[0013] Furthermore, the radiator (5) is provided with screw holes, which correspond to the second through hole (41).

[0014] The beneficial effects of this utility model are as follows: the single transistor mounting structure of this utility model is convenient to be assembled into rows, has a compact structure, solves the difficulties in installing transistors in production, improves production efficiency, saves time and costs, and solves the problems of transistors easily shaking and the sharp corners of transistors easily scratching the insulating paper during the screw tightening process in the prior art. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a single-transistor mounting structure of the present invention; Figure 2 This is an exploded view of a single-transistor mounting structure of a transistor as described in this utility model; Figure 3 This is a structural diagram of a single-transistor stacking structure of a single-transistor mounting structure according to the present invention; Figure 4 This is a diagram of the single-transistor transistor and heat sink mounting structure of the single-transistor mounting structure described in this utility model; Figure 5 This is a diagram showing the installation structure of a single-transistor transistor, a PCB board, and a heat sink, according to the present invention.

[0016] The annotations in the attached figures are explained as follows: 1. Single tube pressure seat; 11. Spring slot; 12. Single tube pressure groove; 13. Single tube clamping groove wall; 131. Spacer hole; 132. Single clamp; 133. Spreading protrusion; 14. Side limiting groove; 15. End limiting groove; 16. Screw through hole; 2. Pressure seat cover plate; 21. Cylindrical sleeve; 22. In-hole claw; 23. End limiting protrusion; 24. Side limiting protrusion; 3. Spring; 4. Transistor single tube; 41. Second through hole; 42. Tube pin; 5. Heat sink; 6. PCB board; 61. First through hole; 62. Board mounting limiting hole; 63. Tube pin hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The following is combined with Figures 1 to 5 The single-transistor mounting structure provided in this embodiment will be further described as follows: Specific reference Figure 1 , Figure 2 The present invention provides a single transistor mounting structure, including a single transistor holder 1, a holder cover 2 and a spring 3. The top surface of the single transistor holder 1 is provided with a spring groove 11, and the spring 3 is disposed in the spring groove 11. The holder cover 2 is pressed onto the single transistor holder 1 and presses the spring 3 into the spring groove 11.

[0019] The bottom of one end of the single tube pressure base 1 is provided with a single tube pressure groove 12, and the two sides of the single tube pressure groove 12 are provided with single tube clamping groove walls 13. The main body of the transistor single tube 4 is located in the single tube pressure groove 12, and the single tube clamping groove walls 13 are used to clamp the two sides of the transistor single tube 4 to achieve stability.

[0020] The top of the pressure seat cover plate 2 is provided with a cylindrical sleeve 21 and several internal clamping claws 22. The several internal clamping claws 22 are evenly distributed on the outside of the cylindrical sleeve 21 to realize the installation with the PCB board 5.

[0021] In one embodiment, there are two internal locking claws 22; in other embodiments, there are three, four, or more internal locking claws 22.

[0022] like Figure 1 - Figure 5 As shown, embodiments of this utility model also disclose the following more optimized specific structures: The single-tube pressure seat 1, the pressure seat cover plate 2, and the spring sheet 3 are all provided with corresponding screw through holes 16, which facilitates the fixing of the three to the radiator 5 by screws. The screw through holes (not shown in the figure) of the pressure seat cover plate 2 are located inside the cylindrical sleeve 21.

[0023] The single tube clamping groove wall 13 includes a spacer bar hole 131, which is provided on the side groove wall of the single tube pressing groove 12. The side groove wall of the single tube pressing groove 12 is divided into several single clamping pieces 132 through the spacer bar hole 131. Each single clamping piece 132 has a spreading protrusion 133 on its inner bottom. The bottom of the spreading protrusion 133 is inclined, which facilitates pressing down to both sides of the transistor single tube 4 and increases the pressing force, thereby improving the stability of the pressing installation.

[0024] The pressure seat cover plate 2 is provided with side limiting protrusions 24 on both sides. The top of the single tube pressure seat 1 is provided with side limiting grooves 14 corresponding to the side limiting protrusions 24. The side limiting protrusions 24 are pressed into the side limiting grooves 14 to prevent the pressure seat cover plate 2 from shifting to both sides during assembly.

[0025] One end of the pressure seat cover plate 2 is provided with an end limiting protrusion 23, and one end of the single tube pressure seat 1 is provided with an end limiting groove 15 corresponding to the end limiting protrusion 23. The end limiting protrusion 23 is located in the end limiting groove 15, and together with the side limiting protrusion 24 and the side limiting groove 14, the pressure seat cover plate 2 is limited in the horizontal direction.

[0026] like Figure 1 - Figure 5 In the transistor single-tube mounting structure shown, the spring 3 is located in the spring slot 11, and both ends of the spring 3 are designed with downward-curved arc structures. This is mainly to ensure that the single-tube holder 1 has sufficient strength during use and will not break or suffer structural damage due to force. Because the single-tube holder 1 has a single-tube pressing groove 12 on one side of its bottom, this part of the structure is relatively weak, and most of its shell is used to press the transistor single tube 4, while the remaining small part of the shell needs to press the heat sink 5 and fix it with screws. When pressing the transistor single tube 4, its force structure is similar to a lever structure with the screw as the fulcrum. Therefore, when the spring is a metal spring, its overall strength can be improved. Of course, in other embodiments, the spring can also be made of other materials, such as plastic, etc.

[0027] In one embodiment, the transistor 4 has a second through hole 41, which corresponds to the screw through hole 16 on the single tube pressure seat 1, the pressure seat cover plate 2, and the spring piece 3. The heat sink 5 has screw holes (not shown in the figure) corresponding to the second through hole (41) and the screw through hole (16). During installation, the mounting structure after assembling the single tube pressure seat 1, the pressure seat cover plate 2, and the spring piece 3 is fixed (e.g., snapped onto) the transistor 4 to form a whole (transistor single tube module). The PCB board 6 is pressed onto the pressure seat cover plate 2. The PCB board 6 has a first through hole 61 corresponding to the cylindrical sleeve 21 and a board mounting limiting hole 62 corresponding to the internal claw 22. The cylindrical sleeve 21 passes through the corresponding first through hole 61 on the PCB board 6 from bottom to top, and the internal claw 22 passes through the board mounting limiting hole from bottom to top. The PCB board 6 has a pin hole 62, which is fixed by the pin 22 inside the hole. The pin hole 63 allows the pin 42 of the transistor 4 to pass through. The pin of the transistor 4 passes through the pin hole 63 from bottom to top and can be fixed to the PCB board 6 by soldering. The PCB board 6 with the transistor module is placed on the heat sink 5 at the corresponding position. Screws are used to pass through the screw through holes 16 on the single tube pressure base 1, the pressure base cover plate 2 and the spring 3, and the second through hole 41 on the transistor 4, and then fixed to the screw hole position on the heat sink 5.

[0028] The described transistor single-tube mounting structure is mainly designed for single tubes, facilitating their assembly into rows. Its compact structure solves the difficulties encountered in transistor assembly during production, improving production efficiency and saving time and costs. Furthermore, it addresses the problems of transistors easily wobbling and sharp corners easily tearing the insulation paper during screw tightening in existing technologies. By securing the transistor from above with the mounting structure, and fixing the structure to the PCB board, the transistor single tube 4 is fixed in place. During screw tightening, the transistor single tube 4 will not wobble from side to side, preventing its sharp corners from tearing the insulation paper.

[0029] This utility model also discloses an inverter, including the aforementioned transistor mounting structure, and also including the aforementioned transistor (4), heat sink (5) and PCB board (6). The transistor mounting structure enables the installation and fixation of the transistor (4), the heat sink (5) and the PCB board (6).

[0030] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A single-transistor mounting structure, characterized in that: The device includes a single tube pressure seat (1), a pressure seat cover plate (2), and a spring piece (3). The top surface of the single tube pressure seat (1) is provided with a spring piece groove (11), and the spring piece (3) is located in the spring piece groove (11). The pressure seat cover plate (2) is pressed onto the single tube pressure seat (1). One end of the single tube pressure seat (1) is provided with a single tube pressure groove (12). The two sides of the single tube pressure groove (12) are provided with single tube clamping groove walls (13). The top of the pressure seat cover plate (2) is provided with a cylindrical sleeve (21) and several in-hole claws (22). Several in-hole claws (22) are evenly distributed on the outside of the cylindrical sleeve (21).

2. The transistor single-transistor mounting structure according to claim 1, characterized in that: The single tube pressure seat (1), the pressure seat cover plate (2) and the spring sheet (3) are all provided with corresponding screw through holes (16), and the screw through holes (16) of the pressure seat cover plate (2) are located inside the cylindrical sleeve (21).

3. The transistor single-transistor mounting structure according to claim 1, characterized in that: The single-tube clamping groove wall (13) includes a spacer hole (131), which is provided on the side groove wall of the single-tube pressing groove (12). The side groove wall of the single-tube pressing groove (12) is divided into several single clamps (132) through the spacer hole (131). The bottom inner side of any single clamp (132) is provided with a spreading protrusion (133).

4. The transistor single-transistor mounting structure according to claim 1, characterized in that: The pressure seat cover plate (2) is provided with side limiting protrusions (24) on both sides, and the top two sides of the single tube pressure seat (1) are provided with side limiting grooves (14) corresponding to the side limiting protrusions (24), and the side limiting protrusions (24) are pressed into the side limiting grooves (14).

5. A single-transistor mounting structure according to claim 1, characterized in that: One end of the pressure seat cover plate (2) is provided with an end limiting protrusion (23), and the top of one end of the single tube pressure seat (1) is provided with an end limiting groove (15) corresponding to the end limiting protrusion (23).

6. The transistor single-transistor mounting structure according to claim 1, characterized in that: The number of the internal jaws (22) can be two, three, or four.

7. A single-transistor mounting structure according to claim 3, characterized in that: The bottom of the spreading protrusion (133) is a slope.

8. An inverter comprising the single-transistor mounting structure according to any one of claims 1-7, characterized in that, It also includes a transistor (4), a heat sink (5) and a PCB board (6). The transistor mounting structure enables the installation and fixation of the transistor (4), the heat sink (5) and the PCB board (6).

9. The inverter according to claim 8, characterized in that, The transistor (4) is provided with a second through hole (41), which corresponds to the screw through hole on the single-tube mounting structure of the transistor.

10. The inverter according to claim 9, characterized in that, The radiator (5) is provided with screw holes, which correspond to the second through hole (41).

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