Circuit PCB (Printed Circuit Board) with integrated structural layout for intelligent gear shifting of tricycle

Abstract

The utility model belongs to the technical field of heat dissipation of integrated circuit PCBs, and discloses a circuit PCB with integrated structure layout for intelligent gear shifting of a tricycle, which comprises a PCB, and the bottom end of the PCB further comprises a heat conduction column assembly. The heat conduction column assembly comprises a heat conduction copper plate attached to the bottom end of the PCB, a fixing base is fixedly arranged at the bottom end of the heat conduction copper plate, a threaded shaft is spirally arranged in the fixing base, a sleeve is slidably arranged on the outer side of the threaded shaft, and a rapid heat dissipation plate is fixedly arranged at the bottom end of the sleeve. The wiring layout is carried out at the positions of the PCBs at the two sides and the middle part, and the wiring length of the circuit is short, so that the connection mode is safer and more reliable. According to the PCB, the connecting mode of a connector is not needed, the cost is reduced, the extended heat conduction column assemblies are additionally arranged, part of the heat conduction column assemblies can directly extend out, and the heat dissipation efficiency of the PCB in the working process is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of integrated circuit PCB board heat dissipation, in particular to a circuit PCB board with an integrated structure layout for intelligent gear shifting of a tricycle. Background Art

[0002] Currently, the circuit boards used in the motor drive controllers of tricycles are designed by separating the control PCBA board and the drive PCBA board into separate boards, and there are also integrated PCBA boards that integrate the control part and the drive part on one board. The split circuit design requires the use of pin headers, sockets or wires to connect the circuits between the control board and the drive board, so its reliability and circuit stability are not as good as the integrated board.

[0003] During the use of the existing integrated circuit board, the controller of the integrated PCBA board is used, that is, the control circuit and the drive circuit are placed on a board. In terms of circuit layout, due to the different driving powers, electric tricycles usually use 12, 18, 24 and other high-cost-effective TO220 packaged MOS tubes in parallel to form a three-phase drive output mode. The heat energy generated by the MOS needs to be dissipated when working. Therefore, the MOS tubes of the upper bridge and the lower bridge are placed on the edge positions on both sides of the PCB respectively, and then the MOS heat dissipation surface is tightly attached to the heat-conducting base and then locked, and the heat is dissipated by heat conduction of the heat dissipation base. Therefore, the drive circuit and the control circuit are generally arranged separately on the left and right. However, the disadvantage of this layout is that when the circuit components of the control unit occupy a large area, the overall circuit layout will become longer or wider, and even be arranged into a special-shaped board. This will not only cause a waste of area of ​​the PCB board, but also increase the difficulty of processing the special-shaped board.

[0004] Therefore, in order to solve the above problems, a circuit PCB board with an integrated structure layout for intelligent gear shifting of a tricycle is proposed. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a circuit PCB board with an integrated structural layout for intelligent gear shifting of a tricycle, which has the advantages of more compact integration of heat dissipation, control and electric structure, avoiding left and right settings, shorter connection wiring, and safer and more reliable connection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit PCB board for a tricycle intelligent gear shifting integrated structure layout, comprising a PCB circuit board, and the bottom end of the PCB circuit board also includes a heat-conducting column assembly;

[0007] The heat-conducting column assembly includes a heat-conducting copper plate fittedly arranged at the bottom end of the PCB circuit board, a fixing seat is fixedly arranged at the bottom end of the heat-conducting copper plate, a threaded shaft is spirally arranged inside the fixing seat, a sleeve is slidably arranged on the outside of the threaded shaft, and a quick heat dissipation plate is fixedly arranged at the bottom end of the sleeve.

[0008] Preferably, a slotted hole is provided at the top of the PCB circuit board, and brackets are tightly arranged on both sides of the inner wall of the slotted hole, and the brackets are fixed to the heat absorbing plate.

[0009] Preferably, a limiting wheel is rotatably provided at the top end of the bracket, and the limiting wheel is slidably provided with the PCB circuit board, and a bending groove begins to be formed on one side of the bracket facing the inner wall of the slotted hole.

[0010] Preferably, a spring is sleeved on the outer side of the threaded shaft, and the spring is located between the fixing seat and the sleeve.

[0011] Preferably, a guide groove is provided inside the sleeve, a side guide plate is slidably provided inside the guide groove of the sleeve, and the side guide plate is fixedly provided to the threaded shaft.

[0012] Preferably, a heat absorbing plate is embedded inside the top of the thermally conductive copper plate, and the heat absorbing plate is attached to the PCB circuit board. A long groove is provided on the top surface of the heat absorbing plate, and anti-slip grooves are provided on both sides of the thermally conductive copper plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model uses the wiring layout on both sides and the middle PCB board position, and the wiring length is short, the connection method is safer and more reliable. The connection method that does not require connectors reduces costs, and the addition of extended thermal conductive column components can directly extend part of the thermal conductive column components, further improving the heat dissipation efficiency of the PCB circuit board during operation.

[0015] 2. The utility model can effectively reduce the signal crosstalk between the control circuit and the drive circuit by opening a groove in the middle of the two circuits, which is beneficial to the interference suppression of EMC signals, increases the reliability of the circuit and the stability of the signal, and cooperates with the positioning structure bracket to strengthen the connection stability between the PCB circuit board and the thermal conductive column assembly. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the installation structure of the heat-conducting copper plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the heat-conducting column assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the bracket of the utility model.

[0020] In the figure: 1. PCB circuit board; 2. slotted hole;

[0021] 3. Heat-conducting column assembly; 31. Heat-conducting copper plate; 32. Heat-absorbing plate; 33. Fixed seat; 34. Threaded shaft; 35. Side guide plate; 36. Sleeve; 37. Rapid heat dissipation plate; 38. Spring;

[0022] 4. Bracket; 5. Limiting wheel; 6. Bending groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 4 As shown, the utility model provides a circuit PCB board for a tricycle intelligent gear shifting integrated structure layout, including a PCB circuit board 1, and the bottom end of the PCB circuit board 1 also includes a heat-conducting column assembly 3;

[0025] The heat-conducting column assembly 3 includes a heat-conducting copper plate 31 which is fitted at the bottom of the PCB circuit board 1. A fixing seat 33 is fixedly arranged at the bottom end of the heat-conducting copper plate 31. A threaded shaft 34 is spirally arranged inside the fixing seat 33. The threaded shaft 34 is installed inside the fixing seat 33 for quick positioning. A sleeve 36 is slidingly arranged on the outer side of the threaded shaft 34. A quick heat dissipation plate 37 is fixedly arranged at the bottom end of the sleeve 36. The heat-conducting function of the sleeve 36 is combined with the heat dissipation function structure of the quick heat dissipation plate 37. The sleeve 36 is heat-conductingly connected to the threaded shaft 34 to form a whole. The quick heat dissipation plate 37 is installed on the outside of the tricycle to further improve the heat dissipation efficiency.

[0026] Specifically, a slotted hole 2 is provided at the top of the PCB circuit board 1, and brackets 4 are tightly provided on both sides of the inner wall of the slotted hole 2, and the brackets 4 are fixed to the heat absorbing plate 32. The slotted hole 2 structure is provided on the surface of the PCB circuit board 1, which can effectively reduce the signal crosstalk between the two circuits.

[0027] Furthermore, a limit wheel 5 is rotatably provided at the top of the bracket 4, and the limit wheel 5 is slidingly provided with the PCB circuit board 1. A bending groove 6 begins to be provided on one side of the bracket 4 facing the inner wall of the slotted hole 2, and the heat absorption plate 32 structure can be directly connected to the PCB circuit board 1 through the bracket 4.

[0028] Furthermore, a spring 38 is sleeved on the outer side of the threaded shaft 34 , and the spring 38 is located between the fixing seat 33 and the sleeve 36 . The spring 38 can form a tight structure between the fixing seat 33 and the sleeve 36 , which is more stable after installation.

[0029] It is worth mentioning that a guide groove is opened inside the sleeve 36, and a side guide plate 35 is slidably arranged inside the guide groove of the sleeve 36, and the side guide plate 35 is fixed to the threaded shaft 34. The sleeve 36 can position the sliding of the threaded shaft 34 through the side guide plate 35 structure, thereby controlling the distance between the sleeve 36 and the fixed seat 33.

[0030] It is worth noting that a heat absorbing plate 32 is embedded inside the top of the thermal conductive copper plate 31, and the heat absorbing plate 32 is in contact with the PCB circuit board 1. A long groove is provided on the top surface of the heat absorbing plate 32, and anti-slip grooves are provided on both sides of the thermal conductive copper plate 31. By providing the long groove and the anti-slip groove structure, the functionality of the thermal conductive copper plate 31 can be improved while increasing heat dissipation.

[0031] Among them, the PCB circuit board 1 and the heat-conducting copper plate 31 are existing technologies and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0032] Working principle and process:

[0033] The staff installed the PCB circuit board 1 with an integrated layout structure in the tricycle to control the intelligent shifting. The integrated layout can effectively reduce the length of the line layout and make the connection more convenient. At the same time, the control circuit and the drive circuit are arranged in parallel on the upper and lower sides of the PCB circuit board 1, the upper bridge MOS tube is arranged on the outside of the drive PCB circuit board 1, and the lower bridge MOS tube is arranged at the connection between the control circuit and the drive circuit. The position of the lower bridge MOS tube is opened in three slots on the PCB board according to each phase to avoid the fit between the heat dissipation base and the heat absorption plate in the thermal conductive column assembly 3. 32 can be inserted into the slotted hole 2 of the PCB circuit board 1 through the bracket 4 and the limiting wheel 5 structure for fast and stable limiting. The threaded shaft 34 is inserted into the fixing seat 33 around the bottom end of the heat-conducting copper plate 31 of the heat-conducting column assembly 3 to be tightened and positioned. The sleeve 36 can be pulled by the spring 38 structure to move outside the side guide plate 35 outside the threaded shaft 34, thereby controlling the sleeve 36 and the quick heat dissipation plate 37 structure at the bottom to press against the surface of the electric vehicle shell for fast positioning, so that during the use of the PCB circuit board 1, the heat dissipation efficiency can be better through the circulation of external air.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit PCB board for a tricycle intelligent gear shifting integrated structure layout, comprising a PCB circuit board (1), characterized in that: The bottom end of the PCB circuit board (1) also includes a heat-conducting column assembly (3); The heat-conducting column assembly (3) comprises a heat-conducting copper plate (31) which is fitted on the bottom end of the PCB circuit board (1); a fixing seat (33) is fixedly arranged at the bottom end of the heat-conducting copper plate (31); a threaded shaft (34) is spirally arranged inside the fixing seat (33); a sleeve (36) is slidably arranged on the outside of the threaded shaft (34); and a quick heat dissipation plate (37) is fixedly arranged at the bottom end of the sleeve (36).

2. The circuit PCB board for the integrated structure layout of intelligent gear shifting for tricycles according to claim 1, characterized in that: A slotted hole (2) is provided at the top of the PCB circuit board (1), brackets (4) are tightly arranged on both sides of the inner wall of the slotted hole (2), and the brackets (4) are fixedly arranged on the heat absorbing plate (32).

3. The circuit PCB board for the integrated structure layout of intelligent gear shifting for a tricycle according to claim 2, characterized in that: A limit wheel (5) is rotatably arranged at the top end of the bracket (4), and the limit wheel (5) is slidably arranged with the PCB circuit board (1). A bending groove (6) is formed on one side of the bracket (4) facing the inner wall of the slotted hole (2).

4. A circuit PCB board with an integrated structure layout for intelligent gear shifting of a tricycle according to claim 1, characterized in that: A spring (38) is sleeved on the outer side of the threaded shaft (34), and the spring (38) is located between the fixing seat (33) and the sleeve (36).

5. The circuit PCB board with integrated structure layout for intelligent gear shifting of tricycle according to claim 1, characterized in that: A guide groove is provided inside the sleeve (36), a side guide plate (35) is slidably arranged inside the guide groove of the sleeve (36), and the side guide plate (35) is fixedly arranged on the threaded shaft (34).

6. A circuit PCB board with an integrated structure layout for intelligent gear shifting of a tricycle according to claim 1, characterized in that: A heat absorbing plate (32) is embedded inside the top end of the heat-conducting copper plate (31), and the heat absorbing plate (32) is in contact with the PCB circuit board (1). A long groove is provided on the top end surface of the heat absorbing plate (32), and anti-slip grooves are provided on both sides of the heat-conducting copper plate (31).

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