Brushless motor controller sealing performance detection device

Abstract

The invention discloses a brushless motor controller sealing performance detection device. Comprising a base, a mounting seat arranged at the top of the base, a lower mounting block arranged at the top of the mounting seat, a supporting rod arranged at the top of the base, a top plate fixed to the upper end of the supporting rod, a movable plate arranged on the top plate in a sleeving mode and in sliding fit with the top plate, and an upper mounting block fixed to the bottom of the movable plate. A lower die is detachably connected into the lower mounting groove, an upper mounting groove is formed in the bottom of the upper mounting block, an upper die is detachably connected into the upper mounting groove, a pipeline connector communicated with the upper mounting groove is fixed to the side wall of the upper mounting block, and a lifting assembly for driving the movable plate to ascend and descend is arranged on the top plate. The pipeline connector is arranged on the upper mounting block, the connecting hole communicating with the upper mounting groove is formed in the upper mounting block, the air inlet hole in the upper die corresponds to the connecting hole in position and communicates with the connecting hole, and the tedious operation that when the upper die or the lower die is replaced every time, a connecting pipe needs to be connected with the pipeline connector again is omitted.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing detection, and particularly relates to a sealing detection device for a brushless motor controller. Background Art

[0002] A brushless motor controller is a control device used to provide a commutation control signal for a three-phase brushless motor. It replaces the mechanical commutator and carbon brushes in a traditional brushed motor through electronic commutation technology, thereby achieving the smooth operation and high efficiency of the motor. The main function of the brushless motor controller is to adjust the stator current according to the position of the permanent magnet of the rotor to generate torque. During operation, the coil remains stationary while the magnetic pole rotates, thereby generating an electric circuit. The controller ensures the normal operation of the motor through electronic commutation, and the sealing of the brushless motor controller is particularly important for protecting its internal circuit.

[0003] The existing sealing detection devices for brushless motor controllers in the prior art generally include a base, a lower mold disposed on the base, an upper mold disposed above the lower mold, and a lifting assembly for driving the upper mold to lift. A pipeline interface connected to an external airtightness detector through a connecting pipe is provided on the lower mold or the upper mold. During use, the operator needs to place the brushless motor controller to be detected for airtightness in the model groove of the lower mold. Subsequently, the upper mold is controlled to descend through the lifting assembly. After the upper mold and the lower mold are closed, the airtightness of the brushless motor controller is detected by the airtightness detector. However, for brushless motor controllers of different models, different models of lower molds and upper molds need to be used. When replacing the lower mold or the upper mold, the pipeline interfaces of the lower mold or the upper mold are also replaced accordingly. Before subsequent detection, it is necessary to reconnect the pipeline interfaces to the external airtightness detector through the connecting pipe, and the connection part needs to be kept sealed, and the operation is relatively cumbersome. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a sealing detection device for a brushless motor controller.

[0005] The above technical object of the present invention is achieved through the following technical solutions: A sealing detection device for a brushless motor controller, including a base, a mounting seat disposed on the top of the base, a lower mounting block disposed on the top of the mounting seat, a support rod disposed on the top of the base, a top plate fixed to the upper end of the support rod, a movable plate sleeved on the top plate and slidably matched therewith, and an upper mounting block fixed to the bottom of the movable plate. A lower mounting groove is provided on the top of the lower mounting block, a lower mold is detachably connected in the lower mounting groove, an upper mounting groove is provided on the bottom of the upper mounting block, an upper mold is detachably connected in the upper mounting groove, a pipeline interface communicating with the upper mounting groove is fixed to the side wall of the upper mounting block, and a lifting assembly for driving the movable plate to lift is provided on the top plate.

[0006] By adopting the above technical solution, the lower die is detachably connected to the lower installation groove of the lower installation block, and the upper die is detachably connected to the upper installation groove of the upper installation block. After the lifting assembly drives the movable plate to rise, the staff can easily replace the upper die and the lower die so as to perform the sealing detection according to brushless motor controllers of different models. The pipeline interface is arranged on the upper installation block, and a connecting hole communicating with the upper installation groove is arranged on the upper installation block. The air inlet hole on the upper die corresponds to the connecting hole in position and is communicated with each other, eliminating the cumbersome operation of reconnecting the connecting pipe to the pipeline interface every time the upper die or the lower die is replaced.

[0007] Furthermore, an annular rubber ring is fixed to the bottom of the upper installation block, and an annular groove for the annular rubber ring to be inserted and matched is arranged on the top of the lower installation block. The support rod includes a lower rod body fixed to the top of the base and an upper rod body hinged to one side of the lower rod body. The bottom of the top plate is fixed to the upper end of the upper rod body. A magnetic limit block magnetically attracted to the upper rod body is rotatably installed at a position near the upper end of the side wall of the lower rod body. The hinge between the lower rod body and the upper rod body is on the same side as the magnetic limit block.

[0008] By adopting the above technical solution, when performing the sealing detection on the brushless motor controller, the lifting assembly drives the upper die to descend, and the annular rubber ring is inserted and matched with the annular groove, thereby achieving good sealing performance and ensuring the accuracy of the sealing detection of the brushless motor controller. After the magnetic limit block rotates to abut against the side wall of the upper rod body, the magnetic limit block ensures the stability of the connection between the upper rod body and the lower rod body during the sealing detection process.

[0009] Furthermore, a screw passing through the upper die and having a clearance fit with the upper die is provided. The upper end of the screw is threadedly connected to the inner top wall of the upper installation groove, and a receiving groove for receiving the head of the screw is arranged in the model groove of the upper die.

[0010] By adopting the above technical solution, the screw detachably connects the upper die to the upper installation block, facilitating the staff to quickly install and replace the upper die. The receiving groove plays a good role in receiving the screw, avoiding the interference of the screw on the detection of the brushless motor controller.

[0011] Furthermore, the mounting seat includes a lower annular block fixed to the top of the base, an upper annular block detachably mounted on the top of the lower annular block, and a rotating disk movably arranged on the top of the base. The bottom of the lower installation block is fixed to the top of the rotating disk. A plurality of lower installation blocks are provided and are evenly distributed about the axis of the rotating disk. The lower die corresponds to the lower installation block one by one, and a rotating assembly for driving the rotating disk to rotate is arranged on the mounting seat.

[0012] By adopting the above technical solution, the other lower molds far from the upper mold are all spare molds. During the process of detecting the sealing performance of the brushless motor controller, the staff can place the brushless motor controller to be detected in the spare mold. After the sealing performance of the brushless motor controller in the front is detected, the rotating assembly drives the rotating disk to rotate, and the lower mounting block rotates synchronously with the turntable, so as to rotate the spare lower mold under the upper mold. After the staff controls the movable plate to descend through the lifting assembly, the next round of sealing performance detection of the brushless motor controller can be carried out, improving the batch detection efficiency.

[0013] Furthermore, a placement groove is provided on the inner wall of the upper annular block. The rotating assembly includes a rotating motor fixed to the bottom wall of the placement groove, a driving gear fixed to the output end of the rotating motor, and a driven gear fixedly sleeved on the rotating disk and meshing with the driving gear.

[0014] By adopting the above technical solution, after the rotating motor works, it drives the driving gear, the driven gear meshing with the driving gear, and the rotating disk fixed to the driven gear to rotate, so as to rotate the spare lower mold under the upper mold to carry out the work of the next round of sealing performance detection of the brushless motor controller.

[0015] Furthermore, a plurality of cylindrical balls that are movably installed on the inner wall of the upper annular block and are in rolling connection with the side wall of the rotating disk are provided, and a plurality of spherical balls that are movably installed on the top of the base and are in rolling connection with the bottom of the rotating disk are provided.

[0016] By adopting the above technical solution, the setting of the cylindrical balls reduces the friction between the side wall of the rotating disk and the inner wall of the upper annular block, and the spherical balls reduce the friction between the top of the base and the bottom of the rotating disk.

[0017] Furthermore, a position sensor for monitoring the position of the lower mold is fixed to the bottom of the movable plate, and at least two position sensors are provided.

[0018] By adopting the above technical solution, the position sensor plays a good role in monitoring the position of the lower mold, and transmits the position information of the lower mold to the control terminal of the detection device in the form of an electrical signal. The control terminal controls the start and stop of the rotating motor in a timely manner according to the position of the lower mold, reducing the alignment time between the lower mold and the upper mold, which is beneficial to improving the detection efficiency.

[0019] Furthermore, the lifting assembly includes a guide rod fixed to the top of the movable plate and a cylinder fixed to the top of the top plate. The guide rod penetrates through the top plate and is in sliding fit, and the lower end of the piston rod of the cylinder penetrates through the top plate and is in sliding fit, and the lower end of the piston rod of the cylinder is fixed to the top of the movable plate.

[0020] By adopting the above technical solution, after the staff controls the piston rod of the cylinder to extend, the movable plate can be lifted and lowered to control the lifting of the upper mold.

[0021] Further, an upper block is fixed at a position on the side wall of the lower annular block near its bottom, a lower block is fixed at a position on the base near its top, a bolt that is in clearance fit with the upper block is disposed through the top of the upper block, and the lower end of the bolt is threadedly connected to the top of the lower block.

[0022] Further, side heat dissipation holes communicating with the placement groove are disposed on the side wall of the upper annular block, and top heat dissipation holes communicating with the top of the placement groove are disposed on the top of the upper annular block.

[0023] By adopting the above technical solution, it is convenient for the rotating motor to dissipate heat only.

[0024] In summary, the present invention has the following beneficial effects:

[0025] In the present application, the pipeline interface is disposed on the upper mounting block, a connection hole communicating with the upper mounting groove is disposed on the upper mounting block, and the air inlet hole on the upper die corresponds to and communicates with the connection hole, eliminating the cumbersome operation of reconnecting the connecting pipe to the pipeline interface every time the upper die or the lower die is replaced.

[0026] When performing a sealing test on the brushless motor controller, the lifting assembly drives the upper die to descend, and the annular rubber ring is inserted and matched with the annular groove, thereby achieving good sealing performance and ensuring the accuracy of the sealing test on the brushless motor controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 is Figure 1 a schematic diagram of the structure from another perspective;

[0029] Figure 3 is Figure 2 an enlarged schematic diagram of part A in;

[0030] Figure 4 is a schematic diagram of the structure of an embodiment of the present invention for highlighting the rotating assembly;

[0031] Figure 5 is Figure 4 an enlarged schematic diagram of part B in;

[0032] Figure 6 is a plan view of an embodiment of the present invention for highlighting the magnetic limit block.

[0033] In the figure: 1. Base; 11. Spherical ball; 12. Lower block; 2. Mounting seat; 21. Lower annular block; 211. Upper block; 22. Upper annular block; 221. Placing groove; 222. Side heat dissipation holes; 223. Top heat dissipation holes; 224. Cylindrical ball; 23. Rotating disk; 3. Lower mounting block; 31. Lower mounting groove; 311. Lower die; 32. Annular groove; 4. Support rod; 41. Lower rod body; 411. Magnetic limit block; 42. Upper rod body; 5. Top plate; 6. Movable plate; 61. Position sensor; 7. Upper mounting block; 71. Upper mounting groove; 711. Upper die; 7111. Screw; 7112. Accommodating groove; 72. Pipeline interface; 73. Annular rubber ring; 8. Lifting assembly; 81. Guide rod; 82. Cylinder; 9. Rotating assembly; 91. Rotating motor; 92. Driving gear; 93. Driven gear; 10. Bolt. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] As Figures 1-6 shown, the embodiment of the present application discloses a brushless motor controller airtightness detection device, including a base 1, a mounting seat 2 arranged on the top of the base 1, a lower mounting block 3 arranged on the top of the mounting seat 2, a support rod 4 arranged on the top of the base 1, a top plate 5 fixed to the upper end of the support rod 4, a movable plate 6 sleeved on the top plate 5 and in sliding fit, and an upper mounting block 7 fixed to the bottom of the movable plate 6. A lower mounting groove 31 is arranged on the top of the lower mounting block 3, and a lower die 311 is detachably connected in the lower mounting groove 31. An upper mounting groove 71 is arranged on the bottom of the upper mounting block 7, and an upper die 711 is detachably connected in the upper mounting groove 71. A pipeline interface 72 communicating with the upper mounting groove 71 is fixed to the side wall of the upper mounting block 7 (during the airtightness detection experiment, the pipeline interface 72 is connected to an external airtightness detector through a connecting pipe. The airtightness detector is a conventional device in the prior art and is not shown in the figure). A lifting assembly 8 for driving the movable plate 6 to lift is arranged on the top plate 5. Specifically: the lifting assembly 8 includes a guide rod 81 fixed to the top of the movable plate 6 and a cylinder 82 fixed to the top of the top plate 5. The guide rod 81 penetrates through the top plate 5 and is in sliding fit, and the lower end of the piston rod of the cylinder 82 penetrates through the top plate 5 and is in sliding fit, and the lower end of the piston rod of the cylinder 82 is fixed to the top of the movable plate 6.

[0036] The lower die 311 is detachably connected to the lower mounting groove 31 of the lower mounting block 3, and the upper die 711 is detachably connected to the upper mounting groove 71 of the upper mounting block 7. After the lifting assembly 8 drives the movable plate 6 to rise, the staff can easily replace the upper die 711 and the lower die 311 so as to perform a sealing test according to brushless motor controllers of different models. The pipeline interface 72 is arranged on the upper mounting block 7. A connecting hole communicating with the upper mounting groove 71 is arranged on the upper mounting block 7. The air inlet hole on the upper die 711 corresponds to the connecting hole in position and is communicated with each other, eliminating the cumbersome operation of reconnecting the connecting pipe to the pipeline interface 72 every time the upper die 711 or the lower die 311 is replaced.

[0037] A ring-shaped rubber seal 73 is fixed to the bottom of the upper mounting block 7, and a ring-shaped groove 32 for plugging and mating with the ring-shaped rubber seal 73 is arranged on the top of the lower mounting block 3. The support rod 4 includes a lower rod body 41 fixed to the top of the base 1 and an upper rod body 42 hinged to one side of the lower rod body 41. The bottom of the top plate 5 is fixed to the upper end of the upper rod body 42. A magnetic limit block 411 magnetically attracted to the upper rod body 42 is rotatably installed at a position near the upper end of the side wall of the lower rod body 41 (the details of the magnetic limit block 411 are only shown in Figure 6 ). The hinge between the lower rod body 41 and the upper rod body 42 is on the same side as the magnetic limit block 411.

[0038] When performing a sealing test on the brushless motor controller, the lifting assembly 8 drives the upper die 711 to descend, and the ring-shaped rubber seal 73 is plugged and mated with the ring-shaped groove 32, thereby achieving good sealing performance and ensuring the accuracy of the sealing test on the brushless motor controller. After the magnetic limit block 411 rotates to abut against the side wall of the upper rod body 42, the magnetic limit block 411 ensures the stability of the connection between the upper rod body 42 and the lower rod body 41 during the sealing test.

[0039] A screw 7111 that is in clearance fit with the upper die 711 is penetrated through the upper die 711. The upper end of the screw 7111 is threadedly connected to the inner top wall of the upper mounting groove 71. A receiving groove 7112 for receiving the head of the screw 7111 is arranged in the model groove of the upper die 711. The screw 7111 detachably connects the upper die 711 to the upper mounting block 7, facilitating the staff to quickly install and replace the upper die 711. The receiving groove 7112 plays a good role in receiving the screw 7111, avoiding the situation where the screw 7111 interferes with the test of the brushless motor controller.

[0040] The mounting base 2 includes a lower annular block 21 fixed to the top of the base 1, an upper annular block 22 detachably mounted on the top of the lower annular block 21, and a rotating disk 23 movably arranged on the top of the base 1. The bottom of the lower mounting block 3 is fixed to the top of the rotating disk 23. There are multiple lower mounting blocks 3 and they are evenly distributed about the axis of the rotating disk 23. The lower die 311 corresponds to the lower mounting block 3 one by one. A rotating assembly 9 for driving the rotating disk 23 to rotate is arranged on the mounting base 2.

[0041] The other lower dies 311 away from the upper die 711 are all spare dies. During the process of detecting the sealing performance of the brushless motor controller, the staff can place the brushless motor controller to be detected in the spare die. After the sealing performance of the front brushless motor controller is detected, the rotating assembly 9 drives the rotating disk 23 to rotate, and makes the lower mounting block 3 rotate synchronously with the rotating disk, so as to rotate the spare lower die 311 under the upper die 711. After the staff controls the movable plate 6 to descend through the lifting assembly 8, the next round of sealing performance detection of the brushless motor controller can be carried out, improving the batch detection efficiency.

[0042] A placement groove 221 is arranged on the inner wall of the upper annular block 22. The rotating assembly 9 includes a rotating motor 91 fixed to the inner bottom wall of the placement groove 221, a driving gear 92 fixed to the output end of the rotating motor 91, and a driven gear 93 fixedly sleeved on the rotating disk 23 and meshing with the driving gear 92. After the rotating motor 91 works, it drives the driving gear 92, the driven gear 93 meshing with the driving gear 92, and the rotating disk 23 fixed to the driven gear 93 to rotate, so as to rotate the spare lower die 311 under the upper die 711 to carry out the work of the next round of sealing performance detection of the brushless motor controller.

[0043] To facilitate the heat dissipation of the rotating motor 91, side heat dissipation holes 222 communicating with the placement groove 221 are arranged on the side wall of the upper annular block 22, and top heat dissipation holes 223 communicating with the top of the placement groove 221 are arranged on the top of the upper annular block 22. A plurality of cylindrical balls 224 that are movably installed on the inner wall of the upper annular block 22 and are in rolling connection with the side wall of the rotating disk 23 are provided, and a plurality of spherical balls 11 that are movably installed on the top of the base 1 and are in rolling connection with the bottom of the rotating disk 23 are provided. The arrangement of the cylindrical balls 224 reduces the friction between the side wall of the rotating disk 23 and the inner wall of the upper annular block 22, and the spherical balls 11 reduce the friction between the top of the base 1 and the bottom of the rotating disk 23.

[0044] A position sensor 61 for monitoring the position of the lower die 311 is fixed to the bottom of the movable plate 6. There are at least two position sensors 61. The position sensors 61 play a good role in monitoring the position of the lower die 311, and transmit the position information of the lower die 311 to the control terminal of the detection device in the form of an electrical signal. The control terminal controls the start and stop of the rotation motor 91 in a timely manner according to the position of the lower die 311, reducing the alignment time between the lower die 311 and the upper die 711, which is beneficial to improving the detection efficiency.

[0045] In this embodiment, an upper block 211 is fixed to a position on the side wall of the lower annular block 21 near its bottom, and a lower block 12 is fixed to a position on the base 1 near its top. A bolt 10 that is in clearance fit with the upper block 211 is disposed through the top of the upper block 211, and the lower end of the bolt 10 is threadedly connected to the top of the lower block 12.

[0046] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A brushless motor controller sealing detection device, comprising a base (1), a mounting seat (2) arranged on the top of the base (1), a lower mounting block (3) arranged on the top of the mounting seat (2), a support rod (4) arranged on the top of the base (1), a top plate (5) fixed to the upper end of the support rod (4), a movable plate (6) sleeved on the top plate (5) and slidably matched, and an upper mounting block (7) fixed to the bottom of the movable plate (6), wherein: The top of the lower mounting block (3) is provided with a lower mounting groove (31), and a lower mold (311) is detachably connected to the lower mounting groove (31); the bottom of the upper mounting block (7) is provided with an upper mounting groove (71), and an upper mold (711) is detachably connected to the upper mounting groove (71); a pipeline interface (72) communicating with the upper mounting groove (71) is fixed to the side wall of the upper mounting block (7); and a lifting assembly (8) for driving the movable plate (6) to rise and fall is provided on the top plate (5).

2. A brushless motor controller sealing detection device according to claim 1, characterized in that: An annular rubber ring (73) is fixed at the bottom of the upper mounting block (7), and an annular groove (32) for the annular rubber ring (73) to be plugged and matched is arranged at the top of the lower mounting block (3). The support rod (4) comprises a lower rod body (41) fixed to the top of the base (1) and an upper rod body (42) hinged to one side of the lower rod body (41). The bottom of the top plate (5) is fixed to the upper end of the upper rod body (42). A magnetic limit block (411) magnetically attracted to the upper rod body (42) is rotatably mounted on the side wall of the lower rod body (41) near its upper end. The hinge between the lower rod body (41) and the upper rod body (42) is on the same side as the magnetic limit block (411).

3. A brushless motor controller sealing detection device according to claim 2, characterized in that: A screw (7111) is provided through the upper die (711) and is clearance-matched with the upper die (711); the upper end of the screw (7111) is threadedly connected to the inner top wall of the upper mounting groove (71); and a receiving groove (7112) for receiving the head of the screw (7111) is provided in the model groove of the upper die (711).

4. A brushless motor controller sealing detection device according to claim 2, characterized in that: The mounting seat (2) comprises a lower annular block (21) fixed to the top of the base (1), an upper annular block (22) detachably mounted on the top of the lower annular block (21), and a rotating disk (23) movably arranged on the top of the base (1); the bottom of the lower mounting block (3) is fixed to the top of the rotating disk (23); the lower mounting block (3) is provided with a plurality of blocks which are evenly distributed about the axis of the rotating disk (23); the lower mold (311) corresponds to the lower mounting block (3) one by one; and a rotating assembly (9) for driving the rotating disk (23) to rotate is arranged on the mounting seat (2).

5. A brushless motor controller sealing detection device according to claim 4, characterized in that: The inner wall of the upper annular block (22) is provided with a placement groove (221), and the rotating assembly (9) comprises a rotating motor (91) fixed on the inner bottom wall of the placement groove (221), a driving gear (92) fixed to the output end of the rotating motor (91), and a driven gear (93) fixedly sleeved on the rotating disk (23) and meshing with the driving gear (92).

6. A brushless motor controller sealing detection device according to claim 5, characterized in that: The inner wall of the upper annular block (22) is movably mounted with a plurality of cylindrical balls (224) which are rollingly connected to the side wall of the rotating disk (23), and the top of the base (1) is movably mounted with a plurality of spherical balls (11) which are rollingly connected to the bottom of the rotating disk (23).

7. A brushless motor controller sealing detection device according to claim 5, characterized in that: A position sensor (61) for monitoring the position of the lower mold (311) is fixed to the bottom of the movable plate (6), and at least two position sensors (61) are provided.

8. The brushless motor controller sealing detection device according to claim 5, characterized in that: The lifting assembly (8) comprises a guide rod (81) fixed to the top of the movable plate (6) and a cylinder (82) fixed to the top of the top plate (5); the guide rod (81) passes through the top plate (5) and is slidably fitted; the lower end of the piston rod of the cylinder (82) passes through the top plate (5) and is slidably fitted; and the lower end of the piston rod of the cylinder (82) is fixed to the top of the movable plate (6).

9. A brushless motor controller sealing detection device according to claim 5, characterized in that: An upper block (211) is fixed on the side wall of the lower annular block (21) near its bottom, and a lower block (12) is fixed on the base (1) near its top. A bolt (10) is provided through the top of the upper block (211) and is loosely matched with the upper block (211). The lower end of the bolt (10) is threadedly connected to the top of the lower block (12).

10. The brushless motor controller sealing detection device according to claim 5, characterized in that: The side wall of the upper annular block (22) is provided with a side heat dissipation hole (222) connected to the placement groove (221), and the top of the upper annular block (22) is provided with a top heat dissipation hole (223) connected to the top of the placement groove (221).

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