Measuring device for detecting function of thermal protector of motor brush holder

By designing a measuring device with a lifting plate and a threaded rod in motor production, the simultaneous detection of multiple thermal protectors was achieved, solving the problems of low testing efficiency and difficult transportation in motor production, and improving production efficiency.

CN224263239UActive Publication Date: 2026-05-19SHANGHAI KEKAI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI KEKAI ELECTRIC CO LTD
Filing Date
2024-12-31
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In motor production, the thermal protector measurement efficiency is low, and the narrow bottom position of the constant current source testing device makes it difficult for the robotic arm to effectively transport the thermal protector.

Method used

Design a measuring device with a side plate and a lifting plate on the top of the base. Constant current source detection devices are symmetrically installed on the lifting plate. A mechanical arm pushes the thermal protector to the bottom of the detection device, and a motor drives the threaded rod to rotate, so as to realize the simultaneous testing of multiple thermal protectors.

Benefits of technology

It improves the testing efficiency of thermal protectors, enhances production efficiency, and simplifies the transportation process of thermal protectors.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224263239U_ABST
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Abstract

The utility model discloses a measuring device for detecting the function of a motor brush holder thermal protector, which comprises a base and a lifting plate, and is characterized in that a side plate is arranged at the top of the base, a motor and a threaded rod are arranged on the side wall of the side plate, the lifting plate is arranged on the other side wall of the side plate, and two mounting plates are symmetrically arranged on the side wall of the lifting plate; four constant-current source detection devices are symmetrically arranged at the tops of the two mounting plates, the lifting plate is connected with a threaded rod, in the actual measurement process, the four motor brush holder thermal protectors are pushed to the bottoms of the four constant-current source detection devices through a mechanical arm, a motor is started to drive the threaded rod to rotate, and the motor brush holder thermal protectors are driven to rotate. The lifting plate is pushed to drive the four constant current source detection devices to move downwards to test the thermal protectors, four thermal protectors can be detected at a time, and the production efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, specifically a measuring device for testing the function of a motor brush holder thermal protector. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. Its main function is to generate driving torque, serving as a power source for electrical appliances or various equipment. Electric motors are widely used in household appliances, industrial equipment, agricultural equipment, military equipment, and transportation vehicles. Based on the type of power source used, electric motors can be divided into DC motors and AC motors. AC motors dominate the power system and can be either synchronous or asynchronous. An electric motor mainly consists of a stator and a rotor. The direction of the force on a current-carrying conductor in a magnetic field depends on the direction of the current and the direction of the magnetic field lines.

[0003] In the production process of existing motor equipment, thermal protectors need to be measured. However, the following problems often arise during the measurement process: 1. In motor production, the production cycle of other processes on the production line is 10 seconds / piece, while the thermal protector measurement takes 30 seconds / piece. The thermal protector testing efficiency is low, which affects the production efficiency of the motor. 2. During the measurement of the thermal protector, it is necessary to use a robotic arm to transport the thermal protector to the bottom of the constant current source testing device for testing. However, the bottom of the constant current source testing device is narrow, making it inconvenient for the robotic arm to transport the thermal protector. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems mentioned above and / or existing measuring devices for detecting the function of motor brush holder thermal protectors, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a measuring device for testing the function of motor brush holder thermal protectors. This device features a side plate on the top of the base, a motor and a threaded rod on the side wall of the side plate, and a lifting plate on the other side wall of the side plate. Two mounting plates are symmetrically arranged on the side wall of the lifting plate, and four constant current source testing devices are symmetrically arranged on the top of the two mounting plates. The lifting plate is connected to the threaded rod. In actual measurement, a robotic arm pushes the four motor brush holder thermal protectors to the bottom of the four constant current source testing devices. The motor is started, causing the threaded rod to rotate, which pushes the lifting plate to move the four constant current source testing devices downwards to test the thermal protectors. This allows for the testing of four thermal protectors at once, greatly improving production efficiency.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A measuring device for testing the function of a motor brush holder thermal protector, comprising:

[0009] The base has a side plate installed on the top left side. The side plate has a sliding groove on its side wall. Two fixing plates are symmetrically arranged on the side plate with the sliding groove as the center. A first motor is installed on the top of the upper fixing plate. The output end of the first motor extends between the two fixing plates and is equipped with a first threaded rod.

[0010] A lifting plate is located on the side wall of the side plate. Two mounting plates are symmetrically installed on the side wall of the lifting plate. A constant current source testing device is installed on the top of the mounting plate. There are two sets of constant current source testing devices, with two devices in each set. The two sets of constant current source testing devices are symmetrically installed on the top of the two mounting plates. A first slider is installed on the side wall of the lifting plate. The first slider extends through the slide groove. A first threaded hole is opened on the top of the first slider. The first threaded rod rotates through the first threaded hole.

[0011] As a preferred embodiment of the measuring device for detecting the function of a motor brush holder thermal protector according to the present invention, a first guide rod is installed between the two fixed plates, a first guide hole is opened at the top of the first slider, and the first guide rod passes through the first guide hole.

[0012] As a preferred embodiment of the measuring device for detecting the function of a motor brush holder thermal protector according to the present invention, a second mounting plate is installed on the symmetrical sidewalls of the base, and bolt holes are opened on the top of the second mounting plate.

[0013] As a preferred embodiment of the measuring device for testing the function of the motor brush holder thermal protector described in this utility model, it further includes a mobile operating platform, which is located on top of the base and below the mounting plate. Four anti-slip pads are installed on the top of the mobile operating platform, and the four anti-slip pads are respectively located directly below the four constant current source testing devices.

[0014] As a preferred embodiment of the measuring device for detecting the function of a motor brush holder thermal protector according to the present invention, the base has a second sliding groove at the top, a second motor is installed on the side wall of the base, the output end of the second motor extends into the second sliding groove and is fitted with a second threaded rod, a second slider is installed at the bottom of the movable operating table, the side wall of the second slider has a second threaded hole, and the second threaded rod rotates through the second threaded hole.

[0015] As a preferred embodiment of the measuring device for detecting the function of a motor brush holder thermal protector according to the present invention, the base has a third sliding groove at the top, a second guide rod is installed inside the third sliding groove, a third slider is installed at the bottom of the movable operating table, a second guide hole is opened on the side wall of the third slider, and the second guide rod passes through the second guide hole.

[0016] Compared with existing technologies: By setting a side plate on the top of the base, with a motor and threaded rod on the side wall of the side plate, and a lifting plate on the other side wall of the side plate, and two mounting plates symmetrically arranged on the side wall of the lifting plate, four constant current source detection devices are symmetrically arranged on the top of the two mounting plates. The lifting plate is connected to the threaded rod. In the actual measurement process, the four motor brush holder thermal protectors are pushed to the bottom of the four constant current source detection devices by a robotic arm. The motor is started to drive the threaded rod to rotate, pushing the lifting plate to move the four constant current source detection devices downward to test the thermal protectors. This allows four thermal protectors to be tested at the same time, greatly improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is an overall structural diagram of a measuring device for detecting the function of a motor brush holder thermal protector according to this utility model;

[0019] Figure 2 This is a partial structural diagram of a measuring device for detecting the function of a motor brush holder thermal protector according to this utility model;

[0020] Figure 3 This is a structural diagram of the lifting plate of a measuring device for detecting the function of a motor brush holder thermal protector according to this utility model;

[0021] Figure 4 This is a structural diagram of a mobile operating platform for a measuring device used to test the function of a motor brush holder thermal protector, according to this utility model. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides a measuring device for testing the function of a motor brush holder thermal protector. It has a built-in disinfection system, which achieves the effect of pre-injection disinfection through the disinfection component installed inside the utility model, saving time and effort.

[0026] Example 1

[0027] Regarding the above-mentioned problem 1: In motor production, the production cycle time of other processes on the production line is 10 seconds / piece, while the thermal protector measurement is 30 seconds / piece. The low efficiency of thermal protector testing affects the production efficiency of motors.

[0028] The solution is as follows: This embodiment provides a measuring device for detecting the function of a motor brush holder thermal protector, including a base 100 and a lifting plate 200.

[0029] A side plate 110 is installed on the top left side of the base 100. A groove 120 is opened on the side wall of the side plate 110. Two fixing plates 130 are symmetrically arranged on the side wall of the side plate 110 with the groove 120 as the center. A first motor 140 is installed on the top of the upper fixing plate 130. The output end of the first motor 140 extends between the two fixing plates 130 and is equipped with a first threaded rod 141. A second mounting plate 150 is installed on the symmetrical side wall of the base 100. A bolt hole 151 is opened on the top of the second mounting plate 150. By passing a bolt through the bolt hole 151 and pushing it into the ground, the base 100 can be connected and fixed to the ground, thereby improving the stability of the base 100 during use.

[0030] The lifting plate 200 is located on the side wall of the side plate 110. Two mounting plates 210 are symmetrically installed on the side wall of the lifting plate 200. A constant current source test device 220 is installed on the top of the mounting plate 210. There are two sets of constant current source test devices 220, with two devices in each set. The two sets of constant current source test devices 220 are symmetrically installed on the top of the two mounting plates 210. A first slider 230 is installed on the side wall of the lifting plate 200. The first slider 230 extends through the slide groove 120. A first threaded hole 240 is opened on the top of the first slider 230. A first threaded rod 141 rotates through the first threaded hole 240. A first guide rod 131 is installed between the two fixed plates 130. A first guide hole is opened on the top of the first slider 230. 250. The first guide rod 131 passes through the first guide hole 250. When it is necessary to test the thermal protector, the four thermal protectors are moved to the bottom of the four constant current source test devices 220 by the robotic arm. At this time, the first motor 140 is started to drive the first threaded rod 141 to rotate. When the first threaded rod 141 rotates, the first slider 230 is pushed by the screw structure to drive the lifting plate 200 and the mounting plate 210 to move downward. The constant current source test device 220 moves downward with the mounting plate 210 until the constant current source test device 220 is connected to the thermal protector. At this time, the four constant current source test devices 220 test the four thermal protectors at the same time, which can greatly improve the testing efficiency of thermal protectors in the production process, thereby improving production efficiency.

[0031] Example 2

[0032] Regarding the second problem to be solved above: During the measurement of the thermal protector, it is necessary to use a robotic arm to transport the thermal protector to the bottom of the constant current source test device for testing. However, the bottom of the constant current source test device is narrow, making it inconvenient for the robotic arm to transport the thermal protector.

[0033] The solution is as follows: This embodiment of a measuring device for detecting the function of a motor brush holder thermal protector also includes a movable operating table 300.

[0034] The mobile operating platform 300 is located on top of the base 100 and below the mounting plate 210. Four anti-slip pads 310 are installed on the top of the mobile operating platform 300, each located directly below one of the four constant current source testing devices 220. A second slide groove 160 is formed on the top of the base 100. A second motor 170 is installed on the side wall of the base 100, with its output end extending into the second slide groove 160 and fitted with a second threaded rod 171. A second slider 320 is installed at the bottom of the mobile operating platform 300, with a second threaded hole 330 on its side wall. The second threaded rod 171 rotates through the second threaded hole 330. A third slide groove 180 is formed on the top of the base 100, with a second guide rod 181 installed inside. A third slider 340 is installed at the bottom of the mobile operating platform 300, with a second guide hole 350 on its side wall. The guide rod 181 passes through the second guide hole 350. When the thermal protector needs to be tested, the second motor 170 is started to drive the second threaded rod 171 to rotate. When the second threaded rod 171 rotates, the screw structure pushes the second slider 320 to move the movable operating table 300 to the right side of the base 100 and extends out from the right side of the base 100. The mechanical arm places the four thermal protectors on the top of the four anti-slip pads 310 respectively. The second motor 170 is started to drive the second threaded rod 171 to reverse, pushes the second slider 320 to move the movable operating table 300 to the left to reset. The four thermal protectors are located at the bottom of the four constant current source test devices 220. After the test is completed, the second motor 170 is started again to drive the second threaded rod 171 to rotate, pushes the second slider 320 to move the movable operating table 300 to the right, and removes the thermal protectors from the top of the movable operating table 300, which is convenient for loading the thermal protectors.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A measuring device for detecting the function of a motor brush holder thermal protector, characterized in that, include: A base (100) is provided with a side plate (110) installed on the top left side. The side plate (110) has a sliding groove (120) on its side wall. The side plate (110) has two fixing plates (130) symmetrically arranged above and below the sliding groove (120) on its side wall. A first motor (140) is installed on the top of the upper fixing plate (130). The output end of the first motor (140) extends between the two fixing plates (130) and is equipped with a first threaded rod (141). A lifting plate (200) is located on the side wall of the side plate (110). Two mounting plates (210) are symmetrically installed on the side wall of the lifting plate (200). A constant current source test device (220) is installed on the top of the mounting plate (210). There are two sets of constant current source test devices (220), and each set of constant current source test devices (220) consists of two devices. The two sets of constant current source test devices (220) are symmetrically installed on the top of the two mounting plates (210). A first slider (230) is installed on the side wall of the lifting plate (200). The first slider (230) extends through the slide groove (120). A first threaded hole (240) is opened on the top of the first slider (230). The first threaded rod (141) rotates through the first threaded hole (240).

2. The measuring device for detecting the function of a motor brush holder thermal protector according to claim 1, characterized in that, A first guide rod (131) is installed between the two fixed plates (130), and a first guide hole (250) is opened at the top of the first slider (230), and the first guide rod (131) passes through the first guide hole (250).

3. A measuring device for detecting the function of a motor brush holder thermal protector according to claim 2, characterized in that, The base (100) has a second mounting plate (150) installed on its symmetrical sidewalls, and the top of the second mounting plate (150) has bolt holes (151).

4. A measuring device for detecting the function of a motor brush holder thermal protector according to claim 3, characterized in that, It also includes a mobile operating table (300), which is located on top of the base (100) and below the mounting plate (210). The top of the mobile operating table (300) is equipped with four anti-slip pads (310), which are located directly below the four constant current source test devices (220).

5. A measuring device for detecting the function of a motor brush holder thermal protector according to claim 4, characterized in that, The base (100) has a second sliding groove (160) at its top. A second motor (170) is installed on the side wall of the base (100). The output end of the second motor (170) extends into the second sliding groove (160) and is equipped with a second threaded rod (171). A second slider (320) is installed at the bottom of the movable operating table (300). A second threaded hole (330) is opened on the side wall of the second slider (320). The second threaded rod (171) rotates through the second threaded hole (330).

6. A measuring device for detecting the function of a motor brush holder thermal protector according to claim 5, characterized in that, The base (100) has a third slide groove (180) at the top, and a second guide rod (181) is installed inside the third slide groove (180). The movable operating table (300) has a third slider (340) at the bottom, and a second guide hole (350) is opened on the side wall of the third slider (340). The second guide rod (181) passes through the second guide hole (350).