Brushless motor desoldering auxiliary tool

Abstract

The utility model provides an auxiliary tool for desoldering of a brushless motor, which is provided with a holding main body with a holding section and a connecting section, three extending rod pieces which are connected in a sliding manner are respectively arranged on the connecting section at intervals in the circumferential direction, and relative positions can be fixed by fasteners. The end, away from the holding body, of the extension rod piece is detachably connected with a welding spot heating piece used for melting soldering tin. The sliding direction of the extending rod pieces is the extending direction of the extending rod pieces, the included angle between the extending directions of the adjacent extending rod pieces is 120 degrees, in other words, each extending rod piece corresponds to one of three welding spots on a driving plate of the BLDC motor, and the sliding direction is the extending direction so that the distance between the welding spot heating piece and the holding body can be adjusted. During use, after the sliding positions of all the extending rod pieces are adjusted through the fasteners, an operator holds the holding section by hand to heat three welding spots at the same time, and the problem that soldering tin at the three welding spots is difficult to melt at the same time through an existing motor driving plate disassembling tool is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of dismounting and welding auxiliary tool, especially relates to a brushless motor dismounting and welding auxiliary tool. BACKGROUND

[0002] With the progress of electronic technology, the demand for integrated motor control systems is increasing. In order to reduce the complexity of the system, improve the reliability of the system, and reduce the overall volume and weight, the application of integrated design of drive board and motor appears. The integrated design can make the drive and control of the motor more accurate, improve the motor efficiency and reduce the energy loss. For example, using advanced control algorithms such as FOC (field oriented control), the efficiency and response speed of the motor can be further improved. At the same time, with the expansion of the global BLDC motor market, and the strengthening of environmental protection and energy saving, the integrated design of drive board and motor has become an effective solution to meet market demand.

[0003] The BLDC motor with integrated drive board and motor is generally composed of a drive board, a stator coil and a rotor. During research and development, debugging or later maintenance, the drive board and the stator coil (usually three welding points are distributed in an equilateral triangle) often need to be dismounted and welded.

[0004] The existing drive board dismounting tool in the industry has the following pain points:

[0005] The electric soldering iron cannot simultaneously heat the three welding points, and the copper coil cools down too quickly, so it is difficult to ensure that the solder at the three welding points melts simultaneously when heating the three welding points one by one.

[0006] The hot air gun simultaneously heats the three welding points, which can easily cause other components on the drive board to be heated, resulting in virtual welding or damage. INVENTION CONTENTS

[0007] The utility model solves the technical problem of providing a brushless motor dismounting and welding auxiliary tool to solve the problem that the existing motor drive board dismounting tool cannot simultaneously melt the solder at three welding points.

[0008] To solve the above problems, the technical scheme of the utility model is as follows:

[0009] The utility model relates to a brushless motor dismounting and welding auxiliary tool, which comprises:

[0010] The holding main body comprises a holding section and a connecting section connected thereto, and three connecting points are arranged on the connecting section;

[0011] Three extension rods are respectively connected to the corresponding connecting points in the extension direction and are fixed to the connecting points by fasteners. The three extension rods are arranged in a ring direction and the included angle between the extension directions of adjacent extension rods is 120°.

[0012] Three welding point heating members are respectively detachably connected to the end of the extension rod member away from the holding main body.

[0013] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the connecting section includes connecting body and three connecting arms,

[0014] Three connecting arms are respectively connected to the circumference of the connecting body along the ring direction, and the included angle between adjacent connecting arms is 120 degrees, and three connecting arms form the connecting point respectively.

[0015] The utility model discloses a brushless motor dismounting and welding auxiliary tool, further includes first pad and second pad,

[0016] The upper end surface of the first pad and the second pad is arranged on the corresponding connecting arm respectively, and the lower end surface of the first pad and the second pad forms the corresponding connecting point respectively, wherein the thickness of the first pad is less than the second pad.

[0017] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the extension rod member includes the rod body and the installation part,

[0018] The rod body is slidably connected to the connecting point, and the installation part is connected to the end of the extension rod member away from the holding main body, and is used for detachably connecting the welding point heating member.

[0019] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the sliding slot of extending along its extension direction is set up on the rod body, the fastener is configured as passing through the sliding slot and is matched with the connecting point and is clamped on the entity of the rod body on the outside of the sliding slot respectively to limit the relative position of the rod body and the connecting point.

[0020] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the fastener is at least one adjusting screw, and the connecting point is equipped with the corresponding adjusting screw hole.

[0021] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the installation part includes the mounting ring and the fixed part,

[0022] The outer ring surface of the mounting ring is fixedly connected to the rod body, and the inner ring surface of the mounting ring is configured to be passed through by the welding point heating member, the fixed part is detachably connected to the mounting ring, and the fixed end of the fixed part is clamped on the welding point heating member.

[0023] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the fixed part includes at least three fixed screws, the mounting ring is opened with three fixed screw holes in the ring direction, the fixed screw is respectively screwed in the corresponding fixed screw hole, and the fixed screw is inserted into the inner ring of the mounting ring and is pressed to the welding spot heating piece.

[0024] The utility model discloses a brushless motor dismounting and welding auxiliary tool, the welding spot heating piece is electric soldering iron.

[0025] The utility model discloses an embodiment has the following advantages and positive effects compared with the prior art by adopting the above technical scheme:

[0026] An embodiment of the utility model discloses a holding main body with holding section and connecting section is arranged, and three slidingly connected extension rod pieces are arranged on the connecting section in the ring direction at intervals, and the relative position can be fixed by fastener, and the welding spot heating piece for melting solder is detachably connected to the end of the extension rod piece away from the holding main body, the sliding direction of the extension rod piece is the extension direction, and the included angle between the extension directions of adjacent extension rod pieces is 120 DEG, that is to say, each extension rod piece corresponds to one of the three welding spots arranged in equilateral triangle on the driving plate of BLDC motor, and the sliding direction is the extension direction, which can adjust the distance between the welding spot heating piece and the holding main body, so as to adapt to the circuit board size of BLDC motor of different sizes, and when in use, the operator can hold the holding section to realize the operation of heating the three welding spots at the same time after adjusting the sliding position of each extension rod piece by fastener, so that the problem that the existing motor driving plate dismounting tool is difficult to melt solder at three welding spots at the same time is solved, and the tool can be adapted to motor circuit boards of various models, and the adaptation degree is high. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 It is the schematic view of the brushless motor dismounting and welding auxiliary tool of the utility model;

[0028] Fig. 2 It is the bottom view of the brushless motor dismounting and welding auxiliary tool of the utility model;

[0029] Fig. 3 It is the schematic view of the mounting portion of the brushless motor dismounting and welding auxiliary tool of the utility model;

[0030] Fig. 4 It is the schematic view of the connecting section of the brushless motor dismounting and welding auxiliary tool of the utility model.

[0031] Explanation of reference numerals: 1, holding section;2, connecting section;201, connecting body;202, connecting arm;203, second pad;3, extension rod piece;301, rod body;302, sliding groove;303, mounting portion;3031, mounting ring;3032, fixed screw;4, welding spot heating piece;5, adjusting screw. DETAILED DESCRIPTION

[0032] The utility model discloses a brushless motor dismantling and welding auxiliary tool makes further detailed explanation in combination with the drawings and specific embodiments. According to the following description and claims, the advantages and features of the utility model will be more clear.

[0033] Reference Figs. 1 to 4 In one embodiment, a brushless motor dismantling and welding auxiliary tool includes a holding main body, three extension rod members 3 and three welding point heating members 4.

[0034] The holding main body includes a holding section 1 and a connecting section 2 connected together, and the connecting section 2 is provided with three connecting points. The extension rod members 3 are respectively connected to the corresponding connecting points in the extension direction and are fixed to the connecting points by fasteners. The three extension rod members 3 are arranged in a ring direction and the included angle between the extension directions of adjacent extension rod members 3 is 120°. The welding point heating members 4 are respectively detachably connected to one end of the corresponding extension rod members 3 away from the holding main body.

[0035] In this embodiment, the holding main body has a holding section 1 and a connecting section 2, and three slidingly connected extension rod members 3 are arranged in a ring direction on the connecting section 2, and the relative position can be fixed by fasteners. The end of the extension rod member 3 away from the holding main body is detachably connected to the welding point heating member 4 for melting solder. The sliding direction of the extension rod member 3 is the extension direction, and the included angle between the extension directions of adjacent extension rod members 3 is 120°, that is, each extension rod member 3 corresponds to one of the three welding points arranged in an equilateral triangle on the driving board of the BLDC motor, and the sliding direction is the extension direction, which can adjust the distance of the welding point heating member 4 relative to the holding main body to adapt to the size of the circuit board of the BLDC motor. In use, after adjusting the sliding position of each extension rod member 3 by the fastener, the operator can hold the holding section 1 (single-handed operation) to simultaneously heat the three welding points, solve the problem that the existing motor driving board dismounting tool cannot simultaneously melt the solder at the three welding points, and can adapt to various types of motor circuit boards with high adaptability.

[0036] The specific structure of the brushless motor dismantling and welding auxiliary tool of this embodiment is further described below:

[0037] In this embodiment, in order to facilitate the connection of the extension rod member 3, the connecting section 2 can specifically include a connecting body 201 and three connecting arms 202.

[0038] The three connecting arms 202 are respectively connected to the circumference of the connecting body 201 in a ring direction, and the included angle between adjacent connecting arms 202 is 120°, and the three connecting arms 202 respectively form the above-mentioned connecting points, which can be specifically provided on the lower end face of the corresponding connecting arm 202.

[0039] Further, in order to facilitate the installation and sliding of the extension rods 3 without interference, the tool can further include first and second pads 203. The upper end faces of the first and second pads 203 are respectively arranged on the corresponding connecting arms 202, and the lower end faces of the first and second pads 203 respectively form the corresponding connecting points. The thickness of the first pad is less than that of the second pad 203. That is, the lower end faces of two of the three connecting arms 202 are respectively provided with the first and second pads 203, so that the three connecting points are staggered in height, and the three extension rods 3 are located at different heights when sliding, without interference. In other embodiments, a third pad can be further provided, and the thickness of the third pad is also different from that of the first and second pads 203.

[0040] In the embodiment, the extension rod 3 can specifically include a rod body 301 and a mounting portion 303. The rod body 301 is slidingly connected to the connecting point, and the mounting portion 303 is connected to the end of the extension rod 3 away from the holding body, for detachably connecting the spot heating element 4.

[0041] Further, the rod body 301 is provided with a sliding groove 302 extending along the extension direction thereof, and the fastener is configured to pass through the sliding groove 302 and clamp the solid part of the rod body 301 outside the sliding groove 302 at the connecting point, to limit the relative position of the rod body 301 and the connecting point.

[0042] Specifically, the fastener is at least one adjusting screw 5 (the number can be two), and the connecting point is provided with a corresponding adjusting screw hole. That is, the rod body 301 is sleeved on the threaded part of the adjusting screw 5 through the sliding groove 302 thereon to realize sliding relative to the connecting point, and the rod body 301 can be clamped and fixed by tightening the adjusting screw 5.

[0043] Further, the mounting portion 303 can specifically include a mounting ring 3031 and a fixing member. The outer ring surface of the mounting ring 3031 is fixedly connected to the rod body 301, and the inner ring surface of the mounting ring 3031 is configured to be passed through by the spot heating element 4. The fixing member is detachably connected to the mounting ring 3031, and the fixed end of the fixing member clamps the spot heating element 4.

[0044] Specifically, the fixing member comprises at least three fixing screws 3032, and the mounting ring 3031 is provided with three fixing screw holes in the ring direction, which can also be arranged at intervals of 120°. The fixing screws 3032 are respectively screwed into the corresponding fixing screw holes and extend into the inner ring of the mounting ring 3031 to press against the welding spot heating member 4, i.e. to press against the welding spot heating member 4 from three directions to achieve the position fixing, and the clamping position of the welding spot heating member 4 can be adjusted by loosening / tightening the fixing screws 3032. Moreover, the fixing mode of the fixing screws 3032 can clamp soldering iron handles of different sizes and thicknesses without affecting the temperature adjustment, and simultaneous heating can be achieved.

[0045] In the embodiment, the welding spot heating member 4 can be an electric soldering iron.

[0046] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments. Even if various changes are made to the utility model, if the changes belong to the scope of the utility model claims and equivalent technologies, they still fall within the protection scope of the utility model.

Claims

1. A brushless motor disassembly and welding auxiliary tool, characterized by, The utility model relates to a welding spot heating device, comprising: a holding body comprising a holding section and a connecting section connected to each other, the connecting section being provided with three connecting points; three extension rods, each of which is slidably connected to a corresponding connecting point along its extension direction, and each of which is fixed to the connecting point by a fastener; the three extension rods are arranged at intervals in the circumferential direction, and the included angle between the extension directions of adjacent extension rods is 120 degrees; three welding spot heating elements, each of which is detachably connected to one end of a corresponding extension rod away from the holding body.

2. The brushless motor de-soldering assist tool of claim 1, wherein, The connecting section comprises a connecting body and three connecting arms. The three connecting arms are connected to the circumference of the connecting body at intervals in the circumferential direction, and the included angle between adjacent connecting arms is 120 degrees, and each of the three connecting arms forms a connecting point.

3. The brushless motor de-soldering aid tool of claim 2, wherein, It further comprises a first pad and a second pad. The upper end surfaces of the first pad and the second pad are arranged on corresponding connecting arms, respectively, and the lower end surfaces of the first pad and the second pad form corresponding connecting points, respectively; wherein the thickness of the first pad is less than that of the second pad.

4. The brushless motor de-soldering aid tool of claim 1, wherein, The extension rod comprises a rod body and a mounting portion. The rod body is slidably connected to the connecting point, and the mounting portion is connected to one end of the extension rod away from the holding body, for detachably connecting the welding spot heating element.

5. The brushless motor de-soldering aid tool of claim 4, wherein, A sliding groove is formed in the rod body along its extension direction, and the fastener is configured to pass through the sliding groove and clamp the solid part of the rod body outside the sliding groove to limit the relative position of the rod body and the connecting point.

6. The brushless motor de-soldering aid tool of claim 5, wherein, The fastener is at least one adjusting screw, and the connecting point is provided with a corresponding adjusting screw hole.

7. The brushless motor de-soldering aid tool of claim 4, wherein, The mounting portion comprises a mounting ring and a fixing member. The outer ring surface of the mounting ring is fixedly connected to the rod body, and the inner ring surface of the mounting ring is configured to be passed through by the welding spot heating element; the fixing member is detachably connected to the mounting ring, and the fixed end of the fixing member clamps the welding spot heating element.

8. The brushless motor de-soldering aid tool of claim 7, wherein, The fixing member comprises at least three fixing screws, and the mounting ring is provided with three fixing screw holes in the circumferential direction; the fixing screws are threadedly connected to corresponding fixing screw holes, respectively, and extend into the inner ring of the mounting ring to press against the welding spot heating element.

9. The brushless motor de-soldering aid tool of claim 1, wherein, The welding spot heating element is an electric soldering iron.

Images