Ripple test equipment for car window lifting motor

Abstract

The invention relates to the technical field of lifting motor testing devices, in particular to car window lifting motor ripple testing equipment, which comprises a base, a lifting simulation mechanism and a current ripple analyzer, and is characterized in that the lifting simulation mechanism comprises an abutting part, a placement seat, a transmission shaft, a rotating speed sensor, a torque sensor and a magnetic powder loader, the transmission shaft is rotatably mounted on the base, and the current ripple analyzer is mounted on the base; the magnetic powder loader and the placement seat are respectively located at two ends of the transmission shaft, the rotating speed sensor and the torque sensor are arranged on the transmission shaft, the pressing piece is connected with the transmission shaft and rotates along with the transmission shaft, a to-be-tested lifting motor is placed between the pressing piece and the placement seat, the placement seat is provided with a plurality of mounting parts, and the mounting parts are provided with a plurality of assembly holes. And the current ripple analyzer is fixedly installed on the base and electrically connected with the rotating speed sensor and the torque sensor, and through the multiple assembly holes in the lifting simulation mechanism and the current ripple analyzer, the advantages that the data stability is better, and multiple lifting motors can be tested are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of lift motor testing devices, and more specifically to a ripple testing device for a vehicle window lift motor. Background Art

[0002] The window motor is the motor used for raising and lowering the car windows. The existing anti-pinch solutions for car windows either use Hall anti-pinch or ripple anti-pinch.

[0003] Existing window lift motor ripple anti-pinch testing requires manual installation of the test lift motor on an actual vehicle door, simulating the window lifting process. During this process, an oscilloscope is used to detect various ripple signals from the lift motor's power-on to power-off state. During operation, the motor is manually driven, and after capturing the ripple signals during operation, the oscilloscope is used to manually debug and analyze the data. For example, frequency and peak-to-peak current values can be filtered out in a single test, while effective values or power require different parameters to be debugged and filtered. However, the entire testing process requires manual debugging and data screening, and individual operator variability makes the operation cumbersome and inefficient. Furthermore, when testing lift motors of multiple specifications, they must be installed on vehicle doors of corresponding specifications. Due to variations in door design, assembly is complex and testing is costly.

[0004] Therefore, there is a demand for a window lift motor ripple test device that has better data stability, can test a variety of lift motors, and has higher test efficiency when testing lift motors of multiple specifications. Summary of the Invention

[0005] The main purpose of this application is to provide a window lift motor ripple test device, wherein the window lift motor ripple test device includes a base, a lifting simulation mechanism and a current ripple analyzer, the lifting simulation mechanism includes a pressure piece, a placement seat, a transmission shaft, a speed sensor, a torque sensor and a magnetic powder loader, the transmission shaft is rotatably mounted on the base, the magnetic powder loader and the placement seat are respectively located at both ends of the transmission shaft, the speed sensor and the torque sensor are arranged on the transmission shaft, the pressure piece is connected to the transmission shaft and rotates with it, the lifting motor to be tested is placed between the pressure piece and the placement seat, the placement seat has several mounting parts, the mounting part has multiple assembly holes, the current ripple analyzer is fixedly mounted on the base, and the current ripple analyzer is electrically connected to the speed sensor and the torque sensor, and the advantages of better data stability and the ability to test multiple lifting motors are achieved through the multiple assembly holes on the lifting simulation mechanism and the current ripple analyzer.

[0006] Another object of the present application is to provide a window lift motor ripple test device, wherein the placement seat is rotatably mounted on the base, the lifting simulation mechanism also includes a rotor fitting, a rotating motor, an oil tank and an electromagnet, the placement seat includes two mounting parts, each of the mounting parts has an avoidance hole, the lifting motor to be tested is arranged on one mounting part, the rotating motor is fixedly mounted on the base, and the rotating shaft of the rotating motor is connected to the center of the placement seat, the rotor fitting is slidably sleeved on one end of the transmission shaft close to the pressure piece, and the rotor fitting and the transmission shaft are selectively connected. The oil tank is mounted on the transmission shaft and is fixedly connected to the transmission shaft, and rotates circumferentially with the transmission shaft. The electromagnet is arranged between the rotor fitting and the oil tank. The transmission shaft has an oil channel, and the rotor fitting has a concave hole at one end close to the transmission shaft. One end of the transmission shaft extends into the concave hole. The two ends of the oil channel are respectively connected with the concave hole and the oil tank. An electric shut-off valve is provided at the connection between the oil channel and the oil tank. An armature ring is fixedly connected to the end face of the rotor fitting close to the transmission shaft, and the axial movement of the rotor fitting is realized by the oil tank and the electromagnet.

[0007] Another object of the present application is to provide a window lift motor ripple testing device, wherein the end of the transmission shaft extending into the recessed hole also has a plurality of liquid inlet channels, the liquid inlet channels extending from the end face of the transmission shaft to the side wall of the transmission shaft, each of the liquid inlet channels is provided with a clamping member for lifting and lowering, a plurality of slots are provided on the side wall of the recessed hole, the liquid inlet channel is connected with the oil channel, and when the rotor mating part moves axially, the clamping part is engaged with or separated from the slot, and the position of the rotor mating part is fixed by engaging the clamping part with the slot, and the oil flows into the liquid inlet channel to assist in supporting the clamping part.

[0008] Another object of the present application is to provide a ripple testing device for a window lift motor, wherein the rotor fitting has a plurality of sockets at one end close to the drive shaft, the sockets correspond one-to-one to the slots and are connected to each other, a first slide bar is slidably arranged in each socket, the first slide bar has an armature portion at one end close to the electromagnet, the other end of the first slide bar has two magnetic plates, and the magnetic poles of the two magnetic plates are arranged in opposite directions, a magnet is fixedly connected to the clamping part, and when the clamping part is clamped with the slot, the magnet is attracted to the opposite magnetic plate, and the clamping part is unlocked by moving the first slide bar toward the electromagnet first.

[0009] In order to achieve at least one of the above-mentioned invention objectives, the present application provides a vehicle window lift motor ripple test device, wherein the vehicle window lift motor ripple test device comprises: base; and A lifting simulation mechanism, comprising a pressing member, a placement seat, a transmission shaft, a speed sensor, a torque sensor, and a magnetic powder loader, wherein the transmission shaft is rotatably mounted on the base, the magnetic powder loader and the placement seat are respectively located at both ends of the transmission shaft, the speed sensor and the torque sensor are provided on the transmission shaft, the pressing member is connected to the transmission shaft and rotates with it, a lifting motor to be tested is placed between the pressing member and the placement seat, the placement seat has a plurality of mounting portions, and each mounting portion has a plurality of assembly holes; and A current ripple analyzer is fixedly mounted on the base and is electrically connected to the rotational speed sensor and the torque sensor.

[0010] In one or more embodiments of the present application, the placement seat is rotatably mounted on the base, the lifting simulation mechanism also includes a rotor fitting, a rotating motor, an oil tank and an electromagnet, the placement seat includes two mounting parts, each of the mounting parts has an avoidance hole, the lifting motor to be tested is arranged on one mounting part, the rotating motor is fixedly mounted on the base, and the rotating shaft of the rotating motor is connected to the center of the placement seat, the rotor fitting is slidably sleeved on one end of the transmission shaft close to the pressure piece, and the rotor fitting and the transmission shaft are selectively connected. The oil tank is selectively clamped, and is sleeved on the transmission shaft and fixedly connected to the transmission shaft, and rotates circumferentially with the transmission shaft. The electromagnet is arranged between the rotor fitting and the oil tank. The transmission shaft has an oil channel, and the rotor fitting has a concave hole at one end close to the transmission shaft. One end of the transmission shaft extends into the concave hole, and the two ends of the oil channel are respectively connected with the concave hole and the oil tank. An electric shut-off valve is provided at the connection between the oil channel and the oil tank, and an armature ring is fixedly connected to the end face of one end of the rotor fitting close to the transmission shaft.

[0011] In one or more embodiments of the present application, the end of the transmission shaft extending into the recessed hole also has a plurality of liquid inlet channels, and the liquid inlet channels extend from the end face of the transmission shaft to the side wall of the transmission shaft. A clamping member is provided for lifting in each of the liquid inlet channels, and a plurality of slots are provided on the side wall of the recessed hole. The liquid inlet channel is connected to the oil channel, and when the rotor mating part moves axially, the clamping member is engaged with or separated from the slot.

[0012] In one or more embodiments of the present application, the rotor fitting has a plurality of sockets at one end close to the transmission shaft, and the sockets correspond one-to-one to the slots and are connected to each other. A first slide bar is slidably arranged in each of the sockets, and the first slide bar has an armature portion at one end close to the electromagnet, and the other end of the first slide bar has two magnetic plates, and the magnetic poles of the two magnetic plates are arranged in opposite directions. A magnet is fixedly connected to the clamping member, and when the clamping member is clamped with the slot, the magnet is attracted to the opposite magnetic plate.

[0013] In one or more embodiments of the present application, the center of the placement seat is close to one end of the rotating motor and has an extension portion, the lifting simulation mechanism also includes a contact cylinder, the contact cylinder is slidably mounted on the extension portion, the end of the rotating shaft of the rotating motor is provided with a contact piece, the contact cylinder is spaced a predetermined distance from the contact piece, when the rotor fitting is disengaged from the avoidance hole, the contact cylinder contacts the contact piece, and the rotating shaft of the rotating motor rotates circumferentially, driving the placement seat to rotate circumferentially.

[0014] In one or more embodiments of the present application, the side wall of the rotor fitting has a flange portion, and the lifting simulation mechanism also includes a second slide bar, one end of the second slide bar is connected to the contact cylinder, and the other end of the second slide bar abuts against the flange portion. When the rotor fitting moves toward the electromagnet, the contact cylinder moves toward the contact piece.

[0015] In one or more embodiments of the present application, the pressure member includes an extension seat, a first connecting rod, a second connecting rod, a third connecting rod, an extension rod and a pressure rod. The first connecting rod is hinged on the extension seat, and the two ends of the second connecting rod are hinged to the first connecting rod and the third connecting rod respectively. The third connecting rod is hinged to the first connecting rod and the second connecting rod at the same time, and the line connecting the hinge point at the hinge point between the first connecting rod and the extension seat and the two hinge points of the third connecting rod forms a triangle. The extension rod is connected to the end of the first connecting rod facing away from the extension seat, and the pressure rod is detachably mounted on the extension rod, and the pressure rod faces the placement seat.

[0016] In one or more embodiments of the present application, the window lift motor ripple testing equipment further includes a high and low temperature box, which covers the placement seat and the pressure member, and has an opening and closing door and a heating element.

[0017] In an embodiment of the present application, a window lift motor ripple test device includes a base, a lift simulation mechanism and a current ripple analyzer. The lift simulation mechanism includes a pressure piece, a placement seat, a drive shaft, a speed sensor, a torque sensor and a magnetic powder loader. The drive shaft is rotatably mounted on the base. The magnetic powder loader and the placement seat are respectively located at both ends of the drive shaft. The speed sensor and the torque sensor are arranged on the drive shaft. The pressure piece is connected to the drive shaft and rotates with it. The lifting motor to be tested is placed between the pressure piece and the placement seat. The placement seat has several mounting parts, and the mounting part has multiple assembly holes. The current ripple analyzer is fixedly mounted on the base, and the current ripple analyzer is electrically connected to the speed sensor and the torque sensor. The advantages of better data stability and the ability to test multiple lift motors are achieved through the multiple assembly holes and the current ripple analyzer on the lift simulation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] These and / or other aspects and advantages of the present application will become more clear and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which: Figure 1 The figure shows a schematic diagram of the structure of a window lift motor ripple test equipment; Figure 2 The figure shows a schematic structural diagram of the lifting simulation mechanism; Figure 3 The figure shows a schematic diagram of the structure of the placement seat; Figure 4 The figure shows a structural schematic diagram of an existing lifting motor; Figure 5 The diagram shows a schematic diagram of the structure of the lifting simulation mechanism near the placement seat; Figure 6 Pictured Figure 5 A local enlarged view of point C; Figure 7 Pictured Figure 6 A local enlarged view of point D; Figure 8 Pictured Figure 5 A local enlarged view of point E; Figure 9 The figure shows a schematic structural diagram of the pressing member. DETAILED DESCRIPTION

[0019] The terms and words used in the following description and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0020] It is understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0021] Although ordinal numbers such as "first," "second," and the like will be used to describe various components, these are not intended to limit those components. The terms are used solely to distinguish one component from another. For example, a first component could be referred to as a second component, and similarly, a second component could be referred to as a first component without departing from the teachings of the inventive concept. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0022] The terms used herein are for the purpose of describing various embodiments only and are not intended to be limiting. As used herein, the singular is intended to include the plural, unless the context clearly indicates otherwise. It will also be understood that the terms "comprising" and / or "having" when used in this specification specify the presence of a stated feature, number, step, operation, component, element, or combination thereof, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0023] Schematic window lift motor ripple test equipment, reference Figures 1 to 9 According to a preferred embodiment of the present invention, a window lift motor ripple test device includes a base 10, a lift simulation mechanism 20 and a current ripple analyzer 30.

[0024] It should be noted that the lifting motor to be tested is installed on the lifting simulation mechanism 20, and the lifting motor is run, and the rotating shaft of the lifting motor is connected to the load on the lifting simulation mechanism 20. The current ripple analyzer 30 is used to measure the current ripple signal of the rotating shaft of the lifting motor in the process from power on to power off, when it is in a state of no load and after overcoming the predetermined numerical load, including frequency, current peak-to-peak value, effective value, power, etc., and is debugged and screened through the built-in program of the current ripple analyzer 30, which has the advantage of better data stability.

[0025] Further, if Figure 2As shown, the lifting simulation mechanism 20 includes a pressing member 201, a placement seat 202, a transmission shaft 203, a speed sensor 204, a torque sensor 205 and a magnetic powder loader 206. The transmission shaft 203 is rotatably mounted on the base 10. The magnetic powder loader 206 and the placement seat 202 are respectively located at both ends of the transmission shaft 203. The speed sensor 204 and the torque sensor 205 are provided on the transmission shaft 203. The pressing member 201 is connected to the transmission shaft 203 and rotates with it. The lifting motor to be tested is placed between the pressing member 201 and the placement seat 202. Figure 3 The placement seat 202 has several mounting parts 2021, and the mounting parts 2021 have multiple assembly holes 2022; in addition, the current ripple analyzer 30 is fixedly installed on the base 10, and the current ripple analyzer 30 is electrically connected to the speed sensor 204 and the torque sensor 205.

[0026] It should be noted that the test motor is placed on the placement seat 202, and the rotating shaft of the test motor is connected to the power of the transmission shaft 203 and rotates synchronously. Then, the test motor is pressed by the pressure member 201 to prevent the test motor from moving axially. Then, the magnetic powder loader 206 is made unloaded or a load of a predetermined value is applied to the transmission shaft 203, and then the test motor is powered. The rotating shaft of the test motor rotates circumferentially at a corresponding angular velocity after overcoming the resistance of the magnetic powder loader 206, and the torque sensor 205 is used to measure whether the magnetic powder loader 206 is erroneous and apply the correct torque. The speed sensor 204 is used to measure the speed of the test motor shaft after overcoming the load and the corresponding data is transmitted to the current ripple analyzer 30.

[0027] In addition, by providing a plurality of assembly holes 2022 on the placement seat 202, the placement seat 202 can be used to place lifting motors of various specifications. Figure 4 The lifting motor includes several mounting holes 90. Several of the assembly holes 2022 can be inserted with plugs. By inserting the plugs through the mounting holes 90, the lifting motor is secured to prevent circumferential rotation. Subsequently, the lifting motor is pressed against the pressing member 201 to achieve axial fixation.

[0028] Furthermore, the placement seat 202 is rotatably mounted on the base 10, as shown in FIG. Figure 3 As shown, the placement seat 202 includes two mounting portions 2021 , and the lifting motor to be tested is disposed on one of the mounting portions 2021 .

[0029] It should be noted that, by providing two mounting portions 2021, when a lifting motor is installed and tested on one mounting portion 2021, the test motor can be disassembled and assembled on the other mounting portion 2021. If a lifting motor of another specification needs to be tested, it is only necessary to replace the pin on the mounting portion 2021 in an idle state with the position of the assembly hole 2022, thereby making full use of the time of one lifting motor during the testing process. It should also be added that, assuming that there is only one mounting portion 2021 on the placement seat 202, when it is necessary to test lifting motors of different specifications, After the pressure piece 201 is separated from the test motor, the test motor needs to be removed, the plug is replaced, and then a test motor of another specification is installed. In this application, the time during the testing of a test motor is fully utilized, and another test motor is assembled. After the test of this motor is completed, the pressure piece 201 can be separated from the tested lifting motor, the placement seat 202 is rotated, and the other test motor is aligned with the transmission shaft 203 and connected with power. Compared with the existing technology, it has the advantages of being able to test multiple lifting motors and having higher testing efficiency when testing lifting motors of multiple specifications.

[0030] Furthermore, in order to realize the circumferential rotation of the placement seat 202, as shown in FIG. Figure 5 As shown, the lifting simulation mechanism 20 also includes a rotary motor 207, which is fixedly mounted on the base 10, with its shaft connected to the center of the placement seat 202. When the shaft of the rotary motor 207 rotates circumferentially, the placement seat 202 rotates. In this embodiment, the positions of the two mounting portions 2021 are swapped by rotating the placement seat 202 180°.

[0031] Further, if Figure 5 As shown, the lifting simulation mechanism 20 also includes a rotor fitting 208, which is provided on one end of the transmission shaft 203 close to the pressure piece 201, and the rotor fitting 208 is selectively engaged with the transmission shaft 203. During operation, when the rotor fitting 208 rotates circumferentially, the transmission shaft 203 follows the circumferential rotation, and the rotor fitting 208 has a co-rotation hole 2081 at one end close to the pressure piece 201, and the co-rotation hole 2081 has a tooth groove that cooperates with the rotating shaft of the lifting motor. When the lifting motor is installed on the placement seat 202, the rotating shaft of the lifting motor extends into the co-rotation hole 2081 and engages with the tooth groove, so that when the rotating shaft of the lifting motor rotates circumferentially, the transmission shaft 203 rotates circumferentially.

[0032] It should be noted that each mounting portion 2021 has an escape hole 2023. During operation, one end of the rotor fitting 208 extends into the escape hole 2023. However, this also means that before the placement seat 202 rotates 180°, if the rotor fitting 208 is located in the escape hole 2023, it will interfere with the movement of the placement seat 202 during its rotation.

[0033] In view of this, the rotor fitting 208 is slidably mounted on one end of the transmission shaft 203 close to the pressing member 201. Specifically, Figure 6 As shown, the rotor fitting 208 has a recessed hole 2082 at one end close to the transmission shaft 203, and one end of the transmission shaft 203 extends into the recessed hole 2082; in addition, the cross-sections of the rotor fitting 208 and the end of the transmission shaft 203 facing each other are both square, so that the rotor fitting 208 can only move axially relative to the transmission shaft 203, but cannot rotate circumferentially.

[0034] It should be noted that before the placement seat 202 rotates circumferentially, the transmission shaft 203 moves toward the magnetic powder loader 206 and exits the avoidance hole 2023 , and after the placement seat 202 rotates 180°, the transmission shaft 203 extends back into the avoidance hole 2023 .

[0035] Specifically, to achieve the above actions, Figure 6 As shown, the lifting simulation mechanism 20 also includes an oil tank 2091 and an electromagnet 2092. The oil tank 2091 is sleeved on the transmission shaft 203 and fixedly connected to the transmission shaft 203, and rotates circumferentially with the transmission shaft 203. The electromagnet 2092 is arranged between the rotor fitting 208 and the oil tank 2091. The transmission shaft 203 has an oil channel 2031. The two ends of the oil channel 2031 are respectively connected to the recessed hole 2082 and the oil tank 2091. An electric shut-off valve is provided at the connection between the oil channel 2031 and the oil tank 2091. The rotor fitting 208 is fixedly connected to an armature ring on one end face close to the transmission shaft 203.

[0036] It should be noted that, assuming that the rotor fitting 208 is located in the avoidance hole 2023 at this time, and the placement seat 202 is intended to be rotated, by opening the electric shut-off valve and energizing the electromagnet 2092, the armature ring on the rotor fitting 208 drives the rotor fitting 208 to move toward the magnetic powder loader 206 under the action of magnetic force, and the oil originally placed in the concave hole 2082 will flow back to the oil tank 2091 along the oil channel 2031; and when it is necessary to extend the rotor fitting 208 into the avoidance hole 2023, the electromagnet 2092 is de-energized, and the oil tank The oil in 2091 will flow into the oil channel 2031 under the action of gravity and exert a thrust on the wall of the recessed hole 2082, so that the rotor fitting 208 moves toward the pressing part 201 and extends into the avoidance hole 2023. During this process, the oil can also be pressurized by an external pressurizing device to ensure that the rotor fitting 208 moves toward the avoidance hole 2023. In addition, after the rotor fitting 208 moves to the specified position, the electric shut-off valve is closed. Due to the incompressibility of the oil, the rotor fitting 208 is prevented from moving toward the magnetic powder loader 206 when the lifting motor is energized.

[0037] Furthermore, in order to realize the selective engagement between the rotor fitting 208 and the transmission shaft 203, as shown in FIG. Figure 7 As shown, one end of the transmission shaft 203 extending into the recessed hole 2082 also has a plurality of liquid inlet channels 2032, and the liquid inlet channels 2032 extend from the end face of the transmission shaft 203 to the side wall of the transmission shaft 203. A clamping member 2033 is provided in each of the liquid inlet channels 2032 for lifting and lowering, and a plurality of slots 2083 are provided on the side wall of the recessed hole 2082. The liquid inlet channel 2032 is connected to the oil channel 2031. When the rotor fitting 208 moves axially, the clamping member 2033 is engaged with or separated from the slot 2083.

[0038] It should be noted that when the rotor fitting 208 moves toward the avoidance hole 2023 and reaches a designated position within the avoidance hole 2023, the oil flows into the recessed hole 2082 and then into and fills the liquid inlet channel 2032. When the electric shut-off valve is closed, the oil flowing into the liquid inlet channel 2032 provides a supporting force for the engaging member 2033, allowing it to be more securely engaged within the engaging groove 2083. It should also be noted that when the rotor fitting 208 is moved toward the magnetic powder loader 206, the engaging member 2033 first separates from the engaging groove 2083, and then the rotor fitting 208 is moved toward the magnetic powder loader 206.

[0039] Furthermore, in order to realize that when the rotor fitting 208 moves toward the magnetic powder loader 206, the clamping member 2033 is first separated from the clamping slot 2083, as shown in FIG. Figure 6 and Figure 7 As shown, the rotor fitting 208 has a plurality of sockets at one end close to the transmission shaft 203, and the sockets correspond to the slots 2083 one by one and are connected to each other. A first slide bar 2084 is slidingly arranged in each of the sockets, and the first slide bar 2084 has an armature portion at one end close to the electromagnet 2092, and the other end of the first slide bar 2084 has two magnetic plates 2085, and the magnetic poles of the two magnetic plates 2085 are arranged in opposite directions. A magnet is fixedly connected to the lifting member, and when the lifting member is engaged with the slot 2083, the magnet is attracted to the opposite magnetic plate 2085.

[0040] It should be noted that when the electromagnet 2092 is energized, the electric shut-off valve is in an open state, the oil tank 2091 is connected to the recessed hole 2082, and since the first slide bar 2084 is lighter and has less resistance than the rotor fitting 208, and the rotor fitting 208 is restricted by the clamping member 2033 and is difficult to move toward the electromagnet 2092, the first slide bar 2084 first moves toward the electromagnet 2092 under the action of the magnetic force and is adsorbed on the electromagnet 2092. In the process of the first slide bar 2084 moving toward the electromagnet 2092, the other end of the first slide bar 2084 is originally facing the clamping member 2033. 33 is separated, and at the same time, the other magnetic piece 2085 is opposite to the clamping piece 2033. Since the magnetism of the two magnetic pieces 2085 is opposite, the clamping piece 2033 is subjected to repulsion instead of attraction at this time, and then the clamping piece 2033 moves downward under the action of the magnetic repulsion and separates from the slot 2083. Then, the rotor fitting 208 is no longer restricted by the clamping piece 2033, and moves toward the electromagnet 2092 under the action of the magnetic force of the electromagnet 2092. It should be pointed out that in this process, the rotor fitting 208 can be regarded as sliding toward the first slide bar 2084, and the first slide bar 2084 is immersed in the socket again. At a certain moment when oil flows into the recessed hole 2082 and causes the rotor fitting 208 to move toward the pressing member 201, the latching groove 2083 is aligned with the engaging member 2033. The magnetic piece 2085 further assists the engaging member 2033 in moving upward and engaging the engaging member 2033 in the latching groove 2083. It should also be noted that a first return spring is provided at the bottom of the engaging member 2033.

[0041] Furthermore, in order to realize that the placement seat 202 rotates circumferentially only after the rotor fitting 208 is separated from the avoidance hole 2023, Figure 5 and Figure 8 As shown, the center of the placement seat 202 is close to one end of the rotating motor 207 and has an extension portion 2024. The lifting simulation mechanism 20 also includes a contact cylinder 2025, which is slidably mounted on the extension portion 2024. A contact piece is installed at the end of the rotating shaft of the rotating motor 207. The contact cylinder 2025 is spaced a predetermined distance from the contact piece. When the rotor fitting 208 is disengaged from the avoidance hole 2023, the contact cylinder 2025 contacts the contact piece, and the rotating shaft of the rotating motor 207 rotates circumferentially, driving the placement seat 202 to rotate circumferentially.

[0042] In addition, if Figure 6 and Figure 8 As shown, the side wall of the rotor fitting 208 has a flange portion 2086, and the lifting simulation mechanism 20 also includes a second slide bar 2087, one end of the second slide bar 2087 is connected to the contact cylinder 2025, and the other end of the second slide bar 2087 is abutted against the flange portion 2086. When the rotor fitting 208 moves toward the electromagnet 2092, the contact cylinder 2025 moves toward the contact piece.

[0043] It should be noted that when the rotor fitting 208 moves toward the electromagnet 2092, the extension 2024 pushes the second slide bar 2087, driving the contact cylinder 2025 toward the contact sheet. After the contact cylinder 2025 engages the contact sheet, the rotation shaft of the rotary motor 207 rotates, driving the placement seat 202 in circumferential rotation. After the electromagnet 2092 loses power, the contact cylinder 2025, connected to a second return spring fixedly connected to the placement seat 202, separates from the contact sheet again under the spring force, preventing further circumferential rotation of the placement seat 202. The inner cross-section of the contact cylinder 2025 is also square. It should be noted that after the placement seat 202 rotates 180°, the contact cylinder 2025 separates from the contact sheet.

[0044] Furthermore, in the embodiments of the present application, Figure 9As shown, the pressing member 201 includes an extension seat 2011, a first link 2012, a second link 2013, a third link 2014, an extension rod 2015 and a pressure rod 2016, the first link 2012 is hinged on the extension seat 2011, the two ends of the second link 2013 are hinged to the first link 2012 and the third link 2014 respectively, the third link 2014 is hinged to the first link 2012 and the second link 2013 at the same time, and the hinge point of the first link 2012 and the extension seat 2011 and the line connecting the two hinge points of the third link 2014 form a triangle, the extension rod 2015 is connected to the end of the first link 2012 away from the extension seat 2011, the pressure rod 2016 is detachably mounted on the extension rod 2015, and the pressure rod 2016 faces the placement seat 202.

[0045] In addition, in order to simulate real situations, the window lift motor ripple test equipment also includes a high and low temperature box (not marked in the figure), which covers the placement seat 202 and the pressure member 201. The high and low temperature box has an opening and closing door and a heating element. The high and low temperature box is used to simulate summer and winter situations to test the relevant performance parameters of the lift motor.

[0046] In summary, the window lift motor ripple testing equipment based on the embodiment of the present application is explained, which provides the window lift motor ripple testing equipment with advantages such as better data stability, ability to test a variety of lift motors, and higher testing efficiency when testing lift motors of multiple specifications.

[0047] It is worth noting that the window lift motor ripple test equipment described in the embodiments of this application has a simple structure, does not involve complex manufacturing processes and does not require expensive materials, and is highly economical. Furthermore, for manufacturers, the window lift motor ripple test equipment provided in this application is easy to produce and is low-cost, which helps control production costs and further promotes product promotion and use.

[0048] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from these principles.

Claims

1. A window lift motor ripple test device, characterized by: The window lift motor ripple test equipment includes base; and A lifting simulation mechanism, comprising a pressing member, a placement seat, a transmission shaft, a speed sensor, a torque sensor, and a magnetic powder loader. The transmission shaft is rotatably mounted on the base. The magnetic powder loader and the placement seat are respectively located at both ends of the transmission shaft. The speed sensor and the torque sensor are provided on the transmission shaft. The pressing member is connected to the transmission shaft and rotates with it. A lifting motor to be tested is placed between the pressing member and the placement seat. The placement seat has a plurality of mounting portions, each of which has a plurality of assembly holes. as well as A current ripple analyzer is fixedly mounted on the base and is electrically connected to the rotational speed sensor and the torque sensor.

2. The window lift motor ripple test equipment according to claim 1, characterized in that: The placement seat is rotatably mounted on the base, and the lifting simulation mechanism also includes a rotor fitting, a rotating motor, an oil tank and an electromagnet. The placement seat includes two mounting parts, each of which has an avoidance hole. The lifting motor to be tested is arranged on one mounting part, the rotating motor is fixedly mounted on the base, and the rotating shaft of the rotating motor is connected to the center of the placement seat. The rotor fitting is slidably sleeved on one end of the transmission shaft close to the pressure part, and the rotor fitting is selectively engaged with the transmission shaft. The oil tank is sleeved on the transmission shaft and fixedly connected to the transmission shaft, and rotates circumferentially with the transmission shaft. The electromagnet is arranged between the rotor fitting and the oil tank. The transmission shaft has an oil channel, and the rotor fitting has a concave hole at one end close to the transmission shaft. One end of the transmission shaft extends into the concave hole. The two ends of the oil channel are respectively connected to the concave hole and the oil tank. An electric shut-off valve is provided at the connection between the oil channel and the oil tank. An armature ring is fixedly connected to the end surface of the rotor fitting close to the transmission shaft.

3. The window lift motor ripple test equipment according to claim 2, characterized in that: One end of the transmission shaft extending into the recessed hole also has a plurality of liquid inlet channels, and the liquid inlet channels extend from the end face of the transmission shaft to the side wall of the transmission shaft. A clamping piece is provided in each of the liquid inlet channels for lifting and lowering, and a plurality of slots are provided on the side wall of the recessed hole. The liquid inlet channel is connected to the oil channel, and when the rotor mating part moves axially, the clamping piece engages or disengages with the slot.

4. The window lift motor ripple test equipment according to claim 3, characterized in that: The rotor fitting has a plurality of sockets at one end close to the transmission shaft, and the sockets correspond to the slots one by one and are connected to each other. A first slide bar is slidably arranged in each socket, and the first slide bar has an armature portion at one end close to the electromagnet, and the other end of the first slide bar has two magnetic plates, and the magnetic poles of the two magnetic plates are arranged in opposite directions. A magnet is fixedly connected to the clamping member, and when the clamping member is clamped with the slot, the magnet is attracted to the opposite magnetic plate.

5. The window lift motor ripple test equipment according to claim 2, characterized in that: The center of the placement seat is close to one end of the rotating motor and has an extension portion, and the lifting simulation mechanism also includes a contact cylinder, which is slidably mounted on the extension portion, and a contact piece is installed at the end of the rotating shaft of the rotating motor, and the contact cylinder is spaced a predetermined distance from the contact piece. When the rotor fitting is disengaged from the avoidance hole, the contact cylinder contacts the contact piece, and the rotating shaft of the rotating motor rotates circumferentially, thereby driving the placement seat to rotate circumferentially.

6. The window lift motor ripple test equipment according to claim 5, characterized in that: The side wall of the rotor fitting has a flange portion, and the lifting simulation mechanism also includes a second slide bar, one end of the second slide bar is connected to the contact cylinder, and the other end of the second slide bar abuts against the flange portion. When the rotor fitting moves toward the electromagnet, the contact cylinder moves toward the contact piece.

7. The window lift motor ripple test equipment according to any one of claims 1 to 6, characterized in that: The pressing member includes an extension seat, a first connecting rod, a second connecting rod, a third connecting rod, an extension rod and a pressure rod. The first connecting rod is hinged on the extension seat, and the two ends of the second connecting rod are hinged to the first connecting rod and the third connecting rod respectively. The third connecting rod is hinged to the first connecting rod and the second connecting rod at the same time, and the hinge point where the first connecting rod is hinged to the extension seat and the line connecting the two hinge points of the third connecting rod form a triangle. The extension rod is connected to the end of the first connecting rod facing away from the extension seat, and the pressure rod is detachably mounted on the extension rod, and the pressure rod faces the placement seat.

8. The window lift motor ripple test equipment according to any one of claims 1 to 6, characterized in that: The window lift motor ripple test equipment further includes a high and low temperature box, which covers the placement seat and the pressing member, and has an opening and closing door and a heating element.

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