Power component assembly of inverter

Abstract

The utility model relates to the technical field of accessory devices, in particular to a power component assembly of an inverter, which is simple in structure, is additionally provided with a quick dismounting mechanism, can conveniently enable a lug to deform when an insulating part is dismounted, does not break, and is more efficient. Comprising an insulating part and a metal elastic sheet, a through hole is formed in the circuit board, one end, penetrating through the through hole, of the insulating part is a clamping part, and the other end of the insulating part penetrates through the metal elastic sheet. The clamping part comprises a connecting column and a guide column which penetrate through the through hole, and a convex lug is fixed at the end part of the connecting column; the circuit board is provided with a quick dismounting mechanism for driving the lugs to deform; the quick dismounting mechanism comprises a driving ring rotationally connected with the circuit board, fixing pieces in one-to-one correspondence with the lugs are fixed in the driving ring, and each fixing piece comprises a thickness increasing section.

Description

Technical Field

[0001] The utility model relates to the technical field of accessory devices, in particular to a power component assembly of an inverter. Background Art

[0002] The utility model patent with application number 202221395498.2 discloses a power component assembly of a photovoltaic inverter, which includes a circuit board, a power component electrically connected to the circuit board, a heat sink for dissipating heat from the power component, and a mounting assembly for pressing the power component onto the heat sink, wherein the mounting assembly includes an insulating member and a metal spring, wherein the insulating member has a first end movably connected to the circuit board, the metal spring has a connecting end connected to the heat sink and a free end opposite to the connecting end, the insulating member also has a second end, and the power component is located between the second end and the heat sink; the free end of the metal spring is pressed on the second end of the insulating member, and the metal spring has an elastic deformation that resets its free end toward the direction of the heat sink. The power component assembly of the utility model has a small number of components, is easy to assemble, and reduces production costs.

[0003] The above device has the following defects when in use: the use process of the lug is as follows: after the lug 4141 passes through the through hole 11 of the circuit board 1, the lug 4141 is stuck on the circuit board 1 due to elastic recovery. Due to the setting of the lug, the installation of the insulating part is very convenient, but during the removal process, it is necessary to manually deform the end of the lug to the inner wall of the through hole, and then pull out the insulating part. Due to the small overall size and the fact that the insulating part is made of plastic, the lug is easily broken. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a power component assembly of an inverter, which has a simple structure and an additional quick removal mechanism. When removing the insulating part, the lug can be easily deformed without breaking, which is more efficient.

[0005] The utility model discloses an inverter power component assembly, comprising a circuit board, a power component electrically connected to the circuit board, a radiator for dissipating heat from the power component, and a mounting assembly for pressing the power component onto the radiator, wherein the mounting assembly comprises an insulating member and a metal spring, the circuit board is provided with a through hole, one end of the insulating member passing through the through hole is a clamping portion, the clamping portion comprises a connecting column and a guide column passing through the through hole, and a lug is fixed at the end of the connecting column; the circuit board is provided with a quick removal mechanism for driving the lug to deform;

[0006] The quick disassembly mechanism comprises a driving ring rotatably connected to the circuit board, a fixing plate corresponding to the lugs is fixed inside the driving ring, and the fixing plate comprises a thickness increasing section.

[0007] Furthermore, the fixing plate also includes a section with constant thickness.

[0008] Furthermore, the lug includes a vertical portion and an inclined portion.

[0009] Furthermore, the quick disassembly mechanism further comprises a fixing ring fixed on the circuit board, and the fixing ring is provided with a plurality of notches;

[0010] The driving ring is coaxially arranged with the fixing ring, and the driving ring is fixedly connected to the guide block passing through the notch.

[0011] Furthermore, the driving ring is fixedly connected to the paddle.

[0012] Furthermore, a mounting hole is formed in the fixing ring, a support plate is fixed at the mounting hole, one end of a spring is provided on the support plate, a ball is placed in the mounting hole, a groove is formed in the driving ring, and under the action of the spring force, a small area of ​​the ball is in the groove.

[0013] Furthermore, the outer wall of the driving ring contacts the inner wall of the fixing ring.

[0014] Furthermore, a limiting block is fixedly connected to the inner wall of the through hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: after the lug passes through the through hole of the circuit board, the lug is stuck on the circuit board due to elastic recovery. When the insulating part needs to be removed, the driving ring is rotated, thereby driving the fixing plate to rotate. Since the fixing plate includes a thickness increasing section and a thickness constant section, during the rotation of the driving ring, the relative position of the fixing plate and the lug changes, and the thickness increasing section gradually squeezes the lug, causing the lug to deform. When the thickness constant section contacts the vertical portion, the elastic force of the lug is perpendicular to the thickness constant section, and the driving ring will not rotate, which plays a certain self-locking role. At this time, the end of the lug is completely in the through hole. At this time, the insulating part can be separated from the circuit board by moving the insulating part downward. Through the above-mentioned arrangement, when removing the insulating part, there is no need to manually deform the lug, etc., which reduces the probability of its breakage and makes removal more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of the middle A part;

[0018] Figure 3It is a top view of the connecting column, guide housing, fixing ring and driving ring;

[0019] Figure 4 It is a schematic diagram of the structure of the connecting column, lug, vertical part and inclined part;

[0020] Figure 5 yes Figure 3 sectional view of

[0021] Markings in the attached drawings: 1. circuit board; 2. connecting column; 3. guide column; 4. driving ring; 5. fixing plate; 6. thickness increasing section; 7. thickness constant section; 8. vertical portion; 9. inclined portion; 10. fixing ring; 11. notch; 12. guide block; 13. paddle; 14. support plate; 15. spring; 16. ball; 17. limit block. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figures 1 to 5 As shown, a power component assembly of an inverter of the utility model includes a circuit board 1, a power component electrically connected to the circuit board 1, a heat sink for dissipating heat from the power component, and a mounting assembly for pressing the power component onto the heat sink, wherein the mounting assembly includes an insulating member and a metal spring, a through hole is provided on the circuit board, one end of the insulating member passing through the through hole is a clamping portion, the clamping portion includes a connecting column 2 and a guide column 3 passing through the through hole, and a lug is fixed at the end of the connecting column 2. Except for the improved mechanism involved in the device, the circuit board 1, the power component, the heat sink, the mounting assembly and other structures involved in the device are the same as the utility model patent structure with application number 202221395498.2, and no further explanation is given;

[0024] The circuit board 1 is provided with a quick removal mechanism for driving the lug to deform;

[0025] The quick disassembly mechanism comprises a driving ring 4 rotatably connected to the circuit board, a fixing plate 5 corresponding to the lugs is fixed inside the driving ring 4, and the fixing plate 5 comprises a thickness increasing section 6;

[0026] Furthermore, the fixing sheet 5 further includes a constant thickness section 7;

[0027] Further, the lug includes a vertical portion 8 and an inclined portion 9. More specifically, when the lug is engaged on the circuit board 1, the vertical portion 8 is closer to the circuit board 1.

[0028] In this embodiment, after the lug passes through the through hole of the circuit board 1, the lug is stuck on the circuit board 1 due to elastic recovery. When the insulating part needs to be removed, the drive ring 4 is rotated, thereby driving the fixing plate 5 to rotate. Since the fixing plate 5 includes a thickness increasing section 6 and a thickness constant section 7, during the rotation of the drive ring 4, the relative position of the fixing plate 5 and the lug changes, and the thickness increasing section 6 gradually squeezes the lug, causing the lug to deform. When the thickness constant section 7 contacts the vertical portion 8, the elastic force of the lug is perpendicular to the thickness constant section 7, and the drive ring 4 will not rotate, which plays a certain self-locking role. At this time, the end of the lug is completely in the through hole. At this time, the insulating part can be separated from the circuit board by moving the insulating part downward. Through the above arrangement, when removing the insulating part, there is no need to manually deform the lug, etc., which reduces the probability of its breakage and makes removal more convenient.

[0029] Furthermore, the quick disassembly mechanism further comprises a fixing ring 10 fixed on the circuit board 1, and the fixing ring 10 is provided with a plurality of notches 11;

[0030] The driving ring 4 is coaxially arranged with the fixing ring 10, and the driving ring 4 is fixedly connected to the guide block 12 passing through the notch 11;

[0031] In this embodiment, through the above arrangement, the driving ring 4 can rotate under the driving of external force, and the guide block 12 rotates in the notch 11. The notch 11 can also limit the rotation angle of the driving ring 4.

[0032] Furthermore, the driving ring 4 is fixedly connected to the paddle 13;

[0033] In this embodiment, when the driving ring 4 needs to be rotated, the driving ring 4 is rotated by pinching the paddle 13 by hand, which makes it more convenient to apply force to the driving ring 4 .

[0034] Furthermore, the fixing ring 10 is provided with a mounting hole, a support plate 14 is fixed at the mounting hole, one end of a spring 15 is provided on the support plate 14, a ball 16 is placed in the mounting hole, and a groove is provided in the driving ring 4. Under the elastic force of the spring 15, a small area of ​​the ball 16 is in the groove;

[0035] In this embodiment, if Figure 2 and Figure 5 As shown, when the thinner end of the fixing sheet 5 is close to the lug, under the elastic force of the spring 15, a small area of ​​the ball 16 is in the groove, and the driving ring 4 can maintain this state without being subjected to external force. When the driving ring 4 needs to be rotated, under the action of external force, the ball 16 can be completely moved into the mounting hole without hindering the rotation of the driving ring 4.

[0036] After removing the insulating part, during the process of rotating the drive ring 4 in the opposite direction to restore it to its original state, under the elastic force of the spring 15, a small area of ​​the ball 16 is in the groove and makes a sound, which is convenient for the operator to judge that the drive ring 4 has reached a position that does not affect the work of the lug.

[0037] Furthermore, the outer wall of the driving ring 4 contacts the inner wall of the fixing ring 10;

[0038] In this embodiment, the outer wall of the driving ring 4 contacts the inner wall of the fixing ring 10 to limit the rotation of the driving ring 4 and prevent it from shaking.

[0039] Furthermore, the inner wall of the through hole is fixedly connected to a limit block 17;

[0040] In this embodiment, each connection column 2 corresponds to two limit blocks 17 , and the two limit blocks 17 are respectively located on both sides of the connection column 2 to prevent the insulating member from rotating when the driving ring 4 rotates.

[0041] The utility model discloses an inverter power component assembly, in which, when working, after the lug passes through the through hole of the circuit board 1, the lug is clamped on the circuit board 1 due to elastic recovery. When the insulating member needs to be removed, the paddle 13 is pinched to rotate the driving ring 4, thereby driving the fixing plate 5 to rotate. Since the fixing plate 5 includes a thickness increasing section 6 and a thickness constant section 7, during the rotation of the driving ring 4, the relative position of the fixing plate 5 and the lug changes, and the thickness increasing section 6 gradually squeezes the lug, causing the lug to deform. When the thickness constant section 7 contacts the vertical portion 8, the elastic force of the lug is perpendicular to the thickness constant section 7, and the driving ring 4 will not rotate, which plays a certain self-locking role. At this time, the end of the lug is completely in the through hole, and the insulating member can be separated from the circuit board by moving the insulating member downward.

[0042] After removing the insulating part, during the process of rotating the drive ring 4 in the opposite direction to restore it to its original state, under the elastic force of the spring 15, a small area of ​​the ball 16 is in the groove and makes a sound, which is convenient for the operator to judge that the drive ring 4 has reached a position that does not affect the work of the lug.

[0043] 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 power component assembly of an inverter, comprising a circuit board (1), a power component electrically connected to the circuit board (1), a heat sink for dissipating heat from the power component, and a mounting assembly for pressing the power component onto the heat sink, the mounting assembly comprising an insulating member and a metal spring, the circuit board having a through hole, one end of the insulating member passing through the through hole forming a clamping portion, the clamping portion comprising a connecting column (2) and a guide column (3) passing through the through hole, the end of the connecting column (2) being fixed with a lug; characterized in that The circuit board (1) is provided with a quick removal mechanism for driving the lug to deform; The quick disassembly mechanism comprises a driving ring (4) rotatably connected to the circuit board, a fixing plate (5) corresponding to the lugs is fixed inside the driving ring (4), and the fixing plate (5) comprises a thickness increasing section (6).

2. The power component assembly of an inverter according to claim 1, characterized in that: The fixing plate (5) further comprises a section (7) with constant thickness.

3. The power component assembly of an inverter as claimed in claim 2, characterized in that: The lug comprises a vertical portion (8) and an inclined portion (9).

4. The power component assembly of an inverter as claimed in claim 3, characterized in that: The quick disassembly mechanism further comprises a fixing ring (10) fixed on the circuit board (1), the fixing ring (10) being provided with a plurality of notches (11); The drive ring (4) is coaxially arranged with the fixed ring (10), and the drive ring (4) is fixedly connected to a guide block (12) passing through the notch (11).

5. The power component assembly of an inverter as claimed in claim 4, characterized in that: The driving ring (4) is fixedly connected to the paddle (13).

6. The power component assembly of an inverter as claimed in claim 5, characterized in that: The fixing ring (10) is provided with a mounting hole, a support plate (14) is fixed at the mounting hole, the support plate (14) is provided with one end of a spring (15), a ball (16) is placed in the mounting hole, and the driving ring (4) is provided with a groove, and under the elastic force of the spring (15), a small area of ​​the ball (16) is located in the groove.

7. The power component assembly of an inverter according to claim 6, characterized in that: The outer wall of the driving ring (4) is in contact with the inner wall of the fixing ring (10).

8. The power component assembly of an inverter as claimed in claim 7, characterized in that: The inner wall of the through hole is fixedly connected to a limit block (17).

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