Motor stalling testing device

Abstract

The utility model provides a motor locked-rotor testing device, and relates to the field of motor locked-rotor testing. The motor locked-rotor testing device comprises a shell which is provided with a containing part and a connecting part used for being connected with a to-be-tested motor; a hollow part is further formed in the side part, close to the to-be-tested motor, of the shell, and the hollow part can be communicated with the accommodating part and the external space; the clamping mechanism is arranged in the accommodating part; the clamping mechanism comprises a clamping part and a driving part connected with the clamping part, the clamping part corresponds to the hollow part and can extend out of the shell through the hollow part, and the driving part can drive the clamping part to correspondingly clamp or release an output shaft of the motor to be tested.

Description

Technical Field

[0001] The present application relates to the field of motor stall testing, and in particular to a motor stall testing device. Background Art

[0002] In the existing automobile air-conditioning system, the motor is one of the indispensable components; and in the detection experiment of the air-conditioning system, the motor stall test is also one of the indispensable test items. By performing a stall test on the motor, the quality and safety performance of the motor can be detected.

[0003] At present, the following two schemes are often used to test the stall of the motor: Scheme 1 is that the operator clamps the output shaft of the motor with a spanner to stop it from rotating, and uses a clock to time the stall time. After the stall time required by the test is reached, the spanner is released to restore the output shaft of the motor to normal rotation. However, due to the large torque of the motor, it is difficult to completely clamp the output shaft with a spanner, and the stall time is completely controlled manually by people, and the time is also difficult to be accurate. Scheme 2 is to use an automated test cabinet to simulate the motor position and feedback the voltage. When simulating the stall, the motor position is stopped and the voltage is fed back to keep it at a constant value. In this way, the real motor stall can be simulated, and the normal simulation voltage is restored after the stall time required by the test is reached. However, since this scheme uses an automated test cabinet to simulate, a special test cabinet needs to be customized, which is costly, and this scheme is only a signal level simulation, and does not simulate the real motor stall and high current situation, which is somewhat different from the real motor stall condition.

[0004] That is, the results of the existing solutions for performing stall tests on motors are not accurate enough and may increase the labor intensity of operators or increase the test costs. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide a motor stall test device to solve the problem that the results of the existing scheme for stall test on the motor are not accurate enough, and the labor intensity of the operator or the test cost is increased.

[0006] According to the above purpose, the utility model provides a motor stall test device, wherein the motor stall test device comprises:

[0007] A housing is formed with a receiving portion and a connecting portion for connecting to the motor to be tested; a hollow portion is also formed on the side of the housing close to the motor to be tested, and the hollow portion can connect the receiving portion with the external space; and

[0008] A clamping mechanism is arranged in the accommodating portion; the clamping mechanism includes a clamping portion and a driving portion connected to the clamping portion, the clamping portion corresponds to the hollow portion and can extend to the outside of the shell through the hollow portion, and the driving portion can drive the clamping portion to clamp or release the output shaft of the motor to be tested.

[0009] Preferably, the shell includes a first shell and a second shell; the first shell and the second shell are respectively provided with corresponding first connecting holes and second connecting holes to form the connecting part; the first shell is detachably connected to the second shell through the first connecting hole and the second connecting hole; the shell is detachably connected to the motor to be tested through the connecting part.

[0010] Preferably, the second shell is formed with the hollow portion.

[0011] Preferably, the hollow portion includes a through hole, and a cross section of the through hole is formed in a circular shape corresponding to the output shaft.

[0012] Preferably, the hollow portion further includes at least three guide portions, which are arranged at intervals and around the outside of the through hole, each of which is formed into a long strip structure extending along the diameter direction of the through hole, and each of which is connected to the through hole.

[0013] Preferably, the clamping mechanism comprises a plurality of clamping members corresponding one to one with the guide portions, each of the clamping members comprises a main body formed into an "L"-shaped structure and the clamping portion; the clamping portion is located at the end of the vertical side of the main body.

[0014] Preferably, when the housing is connected to the motor to be tested, the clamping portion extends to the outside of the housing through the corresponding guide portion.

[0015] Preferably, the driving part includes a first gear, and the clamping member is connected to the end of the first gear in the axial direction; a first thread is formed at the bottom of the horizontal edge of the main body, and a second thread corresponding to the first thread is formed on the end face of the first gear, so that the clamping member is threadedly connected to the first gear.

[0016] Preferably, the driving part also includes a second gear meshing with the first gear and a driving motor connected to the second gear; when the driving motor is in a first state position, the first gear and the second gear rotate synchronously so that the clamping member moves along the corresponding guide portion toward a direction close to the through hole, and the clamping portion clamps the output shaft; when the driving motor is in a second state position, the first gear and the second gear rotate synchronously so that the clamping member moves along the corresponding guide portion toward a direction away from the through hole, and the clamping portion releases the output shaft.

[0017] Preferably, the motor stall test device further comprises a control unit, and the drive unit is communicatively connected or electrically connected to the control unit.

[0018] According to the motor stall test device of the utility model, the test device can be fixed to the motor to be tested through the shell, so that the clamping part of the clamping mechanism can extend to the outside of the shell through the hollow part formed on the shell, and then the driving part connected to the clamping part can drive the clamping part to clamp or release the output shaft of the motor to be tested. Compared with the two solutions in the prior art, the test device does not require the operator to manually clamp the output shaft, which effectively reduces the labor intensity of the operator; the manufacturing cost of the test device is also lower than that of a customized test cabinet; in addition, the test device can accurately control the stall time through the driving part and act on the real motor, which can effectively ensure the authenticity and accuracy of the test results.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is an exploded view of a motor stall test device according to an embodiment of the utility model;

[0022] Figure 2 is an exploded view of the motor stall test device according to an embodiment of the utility model from another perspective;

[0023] Figure 3 It is a schematic diagram of a clamping mechanism according to an embodiment of the utility model.

[0024] Icon: 11-first shell; 12-second shell; 13-hollow portion; 131-through hole; 132-guide portion; 14-first connecting hole; 21-first gear; 211-second thread; 22-second gear; 23-drive motor; 24-clamping piece; 241-main body; 242-first thread; 243-clamping portion; 31-control portion. DETAILED DESCRIPTION

[0025] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0026] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0027] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0028] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0029] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0030] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0031] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0032] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0033] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0034] According to the utility model, a motor stall test device is provided, such as Figures 1 to 3As shown, the motor stall test device in this embodiment includes a housing and a clamping mechanism connected to the housing, through which the test device can be connected to the motor to be tested, so that the clamping mechanism can clamp or release the output shaft of the motor to be tested, thereby completing the test. In the following, the specific structure of the above-mentioned parts of the motor stall test device according to the utility model will be described in detail.

[0035] It should be noted that, although not shown in the figure, in order to facilitate the stable setting of the test device and improve the accuracy of its test results, the motor to be tested can be set in the test box, and the output shaft of the motor to be tested can be extended to the outside of the test box through the corresponding through hole 131 and other structures to facilitate the function of the clamping mechanism. In other words, the connection between the housing and the motor to be tested in this embodiment is actually the connection between the housing and the test box.

[0036] In this embodiment, if Figure 1 to Figure 2 As shown, the shell includes a first shell 11 and a second shell 12, and the first shell 11 and the second shell 12 are respectively provided with corresponding first connecting holes 14 and second connecting holes (not shown in the figure) to form a connecting portion of the shell. The first shell 11 and the second shell 12 can be detachably connected through the first connecting hole 14 and the second connecting hole to facilitate the maintenance of the clamping mechanism arranged inside the shell. The shell is also detachably connected to the test box through the connecting portion. There is no specific restriction on the specific form, position and number of the first connecting hole 14 and the second connecting hole, as long as the above-mentioned technical effect can be achieved. For example, the first connecting hole 14 and the second connecting hole in the present embodiment are formed as corresponding threaded holes, and the test box is also provided with threaded holes corresponding to the connecting portion; or both of them can also be formed as pin holes.

[0037] Furthermore, when the first shell 11 and the second shell 12 are connected, the space between them forms a housing portion for connecting the clamping structure. Figure 2 As shown, the second shell 12 is also formed with a hollow portion 13, which can connect the accommodating portion with the external space; further, the hollow portion 13 includes a through hole 131, and the cross-section of the through hole 131 is formed into a circle corresponding to the output shaft of the motor to be tested, so as to facilitate the clamping mechanism to clamp the output shaft of the motor to be tested. In addition, the hollow portion 13 in this embodiment also includes three guide portions 132, which are arranged around the outside of the through hole 131 at intervals, and each guide portion 132 is formed into a long strip structure extending along the diameter direction of the through hole 131, and each guide portion 132 is connected to the through hole 131, and the guide portion 132 can play a role in guiding and limiting the clamping and releasing actions of the clamping portion 243 described below.

[0038] It should be noted that the number of the guide portions 132 is not limited thereto, and for example, four guide portions 132 may be provided, as long as the clamping portion 243 described below can clamp the output shaft of the motor to be tested. In addition, the shape and size of the guide portion 132 are not specifically limited, but need to be adapted to the shape and size of the clamping portion 243 described below, so that the test device can better achieve the above technical effects.

[0039] In this embodiment, if Figures 1 to 3 As shown, the clamping mechanism is arranged in the accommodating portion of the shell, and includes a clamping portion 243 and a driving portion connected to the clamping portion 243. The clamping portion 243 corresponds to the above-mentioned guide portion 132 and can extend to the outside of the shell through the guide portion 132. The driving portion can drive the clamping portion 243 to clamp or release the output shaft of the motor to be tested along the extension direction of the guide portion 132.

[0040] Specifically, Figure 3 As shown, the clamping mechanism in this embodiment includes three clamping members 24 corresponding to the guide portion 132 one by one, and each clamping member 24 includes a main body 241 formed as an "L"-shaped mechanism and the clamping portion 243, and the clamping portion 243 is arranged at the end of the vertical side of the main body 241. More specifically, the clamping portion 243 is also formed as an "L"-shaped structure, that is, the end of the vertical side of the clamping portion 243 is connected to the end of the vertical side of the main body 241, so that the clamping portion 243 can achieve its clamping effect. However, the specific structure of the main body 241 and the clamping portion 243 is not limited to this, as long as it can achieve the technical effect of being driven by the driven part to clamp or release the output shaft.

[0041] In addition, if Figure 3 As shown, the driving part also includes a first gear 21, and the clamping member 24 is connected to the end of the first gear 21 in the axial direction. Specifically, a first thread 242 is formed at the bottom of the horizontal side of the main body 241, and a second thread 211 corresponding to the first thread 242 is formed on the end surface of the first gear 21, that is, the clamping member 24 is threadedly connected to the first gear 21, so that when the first gear 21 rotates, the clamping member 24 can move along the extension direction of the guide portion 132. Based on this technical effect, the first gear 21 is rotatably connected to the first housing 11.

[0042] The driving part also includes a second gear 22 meshing with the first gear 21 and a driving motor 23 connected to the second gear 22, and the driving motor 23 is connected to the first housing 11. When the driving motor 23 is in the first state position (i.e., the driving motor 23 rotates forward), the second gear 22 drives the first gear 21 to rotate synchronously, so that the clamping member 24 can move along the corresponding guide portion 132 toward the direction close to the through hole 131, thereby clamping the output shaft of the motor to be tested; when the driving motor 23 is in the second state position (i.e., the driving motor 23 rotates reversely), the second gear 22 drives the first gear 21 to rotate, so that the clamping member 24 can move along the corresponding guide portion 132 toward the direction away from the through hole 131, thereby releasing the output shaft.

[0043] Furthermore, the testing device also includes a control unit 31, which is arranged on the outside of the first shell 11 and is communicatively connected or electrically connected to the drive motor 23, so that the start and stop, torque, speed and running time of the drive motor 23 can be controlled by the control unit 31, thereby making the test results more accurate.

[0044] According to the motor stall test device of the utility model, the test device can be fixed to the motor to be tested through the shell, so that the clamping part 243 of the clamping mechanism can extend to the outside of the shell through the hollow part 13 formed on the shell, and then the driving part connected to the clamping part 243 can drive the clamping part 243 to clamp or release the output shaft of the motor to be tested. Compared with the two solutions in the prior art, the test device does not require the operator to manually clamp the output shaft, which effectively reduces the labor intensity of the operator; the manufacturing cost of the test device is also lower than that of a customized test cabinet; in addition, the test device can accurately control the stall time through the driving part and act on the real motor, which can effectively ensure the authenticity and accuracy of the test results.

[0045] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A motor stall test device, characterized in that: The motor stall test device comprises: A housing is formed with a receiving portion and a connecting portion for connecting to the motor to be tested; a hollow portion is also formed on the side of the housing close to the motor to be tested, and the hollow portion can connect the receiving portion with the external space; and A clamping mechanism is arranged in the accommodating portion; the clamping mechanism includes a clamping portion and a driving portion connected to the clamping portion, the clamping portion corresponds to the hollow portion and can extend to the outside of the shell through the hollow portion, and the driving portion can drive the clamping portion to clamp or release the output shaft of the motor to be tested.

2. The motor stall test device according to claim 1, characterized in that: The shell includes a first shell and a second shell; the first shell and the second shell are respectively provided with corresponding first connecting holes and second connecting holes to form the connecting part; the first shell is detachably connected to the second shell through the first connecting hole and the second connecting hole; the shell is detachably connected to the motor to be tested through the connecting part.

3. The motor stall test device according to claim 2, characterized in that: The second shell is formed with the hollow portion.

4. The motor stall test device according to claim 3, characterized in that: The hollow portion includes a through hole, and a cross section of the through hole is formed in a circular shape corresponding to the output shaft.

5. The motor stall test device according to claim 4, characterized in that: The hollow portion further includes at least three guide portions, which are arranged around the outside of the through hole at intervals, each of which is formed into a long strip structure extending along the diameter direction of the through hole, and each of which is connected to the through hole.

6. The motor stall test device according to claim 5, characterized in that: The clamping mechanism includes a plurality of clamping members corresponding to the guide portions one by one, and each of the clamping members includes a main body formed into an "L"-shaped structure and the clamping portion; the clamping portion is located at the end of the vertical side of the main body.

7. The motor stall test device according to claim 6, characterized in that: When the housing is connected to the motor to be tested, the clamping portion extends to the outside of the housing through the corresponding guiding portion.

8. The motor stall test device according to claim 6, characterized in that: The driving part includes a first gear, and the clamping member is connected to the end of the first gear in the axial direction; a first thread is formed at the bottom of the horizontal side of the main body, and a second thread corresponding to the first thread is formed on the end face of the first gear, so that the clamping member is threadedly connected to the first gear.

9. The motor stall test device according to claim 8, characterized in that: The driving part also includes a second gear meshing with the first gear and a driving motor connected to the second gear; when the driving motor is in a first state position, the first gear and the second gear rotate synchronously, so that the clamping member moves along the corresponding guide portion toward a direction close to the through hole, and the clamping portion clamps the output shaft; when the driving motor is in a second state position, the first gear and the second gear rotate synchronously, so that the clamping member moves along the corresponding guide portion toward a direction away from the through hole, and the clamping portion releases the output shaft.

10. The motor stall test device according to claim 1, characterized in that: The motor stall test device further includes a control unit, and the drive unit is communicatively connected or electrically connected to the control unit.

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