Exciting force testing device

Abstract

The utility model relates to the field of testing devices, and particularly discloses an exciting force testing device which is used for testing the exciting force of an electric compressor assembly and comprises a mounting base, a first adjusting piece and a sensor. The mounting base comprises a mounting plane, the electric compressor assembly is fixedly mounted on the mounting plane, and the axis of the electric compressor assembly is located at the same height and is parallel to the mounting plane; the first adjusting piece comprises two abutting planes which are oppositely arranged; the sensor abuts against the mounting plane, specifically, the abutting plane abuts against the surface of the electric compressor assembly and the sensor, and therefore the exciting force is transmitted to the sensor through the first adjusting piece, the exciting force testing device can directly measure the exciting force generated by vibration of the electric compressor assembly, and the accuracy of exciting force data is improved. Simulation detection can be carried out when the engine is not loaded, namely the whole vehicle is not known, time and labor waste caused by replacement after unqualified detection after installation is avoided, the structure is simple, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the field of testing devices, and particularly relates to an exciting force testing device. Background Art

[0002] New energy electric vehicles lack the masking effect of engine noise compared with traditional fuel vehicles. The noise and vibration problems of the electric compressor assembly are more likely to be manifested in the vehicle, directly affecting the NVH (Noise, Vibration, Harshness) performance of the whole vehicle and reducing comfort. When the electric compressor assembly works, the vibration excitation is transmitted to the vehicle body through the compressor bracket or housing, and finally transmitted to the brake pedal and steering wheel. If the vibration excitation of the electric compressor assembly is large and the vibration isolation of the path is insufficient, it is easy to cause the brake pedal and the steering wheel to go numb in the vehicle, causing complaints from the driver and passengers. Therefore, reasonable test acquisition and control of the exciting force of the electric compressor assembly are particularly important for the NVH of new energy electric vehicles.

[0003] Currently, the whole vehicle test is usually carried out after the whole vehicle is installed, rather than the individual test of the electric compressor component. Since this test method is a whole vehicle test and is a test in the real application scenario of the electric compressor, although the test result is accurate, once the test result does not meet the requirements, the electric compressor has to be replaced and retested, which is time-consuming and laborious. Summary of the Utility Model

[0004] The present application provides an exciting force testing device. The exciting force testing device adopts the direct measurement method, can directly measure the exciting force of the electric compressor assembly, improves the accuracy of the exciting force data, can simulate and detect when the engine has not been installed in the vehicle, that is, when the whole vehicle is not known, avoiding the time-consuming and laborious process of replacing and retesting after the installation fails, and has a simple structure and is easy to operate.

[0005] To solve the above technical problems, a technical solution adopted by the present application is: to provide an exciting force testing device, which includes a mounting base, a first adjusting member and a sensor; the mounting base includes a mounting plane, the electric compressor assembly is installed and fixed on the mounting plane, and the axes of the electric compressor assembly are at the same height and parallel to the mounting plane; the first adjusting member includes two opposing pressing planes; the sensor is pressed on the mounting plane, wherein the pressing planes respectively abut against the surface of the electric compressor assembly and the sensor.

[0006] Wherein, the mounting base includes a bottom wall and a side wall connected perpendicularly to each other, the mounting plane is arranged on the side wall; the bottom wall is provided with a reference plane, and the side wall is connected to the reference plane; the mounting base further includes a distance adjusting member, the distance adjusting member is detachably connected to the mounting plane and the electric compressor assembly, and the axis of the distance adjusting member is parallel to the reference plane.

[0007] Among them, there are several distance adjusting members; the first end of each distance adjusting member is detachably connected to the installation plane, and the distance adjusting members are arranged in parallel along a direction perpendicular to the installation plane; several installation support angles are provided on the electric compressor assembly, and the second end of each distance adjusting member is detachably connected to the corresponding installation support angle.

[0008] Among them, the exciting force testing device further includes a connecting member that connects the installation plane and the electric compressor assembly. The first adjusting member and the sensor are both provided with central holes, the central holes are sleeved on the connecting member, and the diameter of the central hole is larger than the cross-sectional dimension of the connecting member.

[0009] Among them, the exciting force testing device further includes a second adjusting member, which is also provided with a central hole whose diameter is larger than the cross-sectional dimension of the connecting member, and the central hole is sleeved on the connecting member; the second adjusting member includes two opposing abutting surfaces, the second adjusting member is located between the sensor and the installation plane, and the abutting surfaces respectively abut against the installation plane and the sensor.

[0010] Among them, the flatness of both the pressing plane and the abutting surface is 0.02 mm.

[0011] Among them, both the first adjusting member and the second adjusting member are trapezoidal blocks, and the pressing plane is the upper and lower bottom surfaces of the trapezoidal block.

[0012] Among them, the flatness of both the pressing plane and the installation plane is 0.02 mm.

[0013] Among them, the installation base further includes a reference plane perpendicular to the installation plane; the installation base further includes a distance adjusting member that detachably connects the installation plane and the electric compressor and makes the axis of the electric compressor assembly parallel to the reference plane; the installation base further includes a connecting member, and the first adjusting member and the sensor are both provided with central holes, the central holes are sleeved on the connecting member, and the diameter of the central hole is larger than the cross-sectional dimension of the connecting member.

[0014] Among them, the exciting force testing device further includes a signal amplifier and a terminal. The signal amplifier is connected to the sensor and the terminal and is used to amplify the signal collected by the sensor and transmit it to the terminal.

[0015] The beneficial effects of this application are as follows: Different from the prior art, the exciting force testing device provided by this application includes a mounting base, a first adjusting member, and a sensor; the mounting base includes a mounting plane, on which the electric compressor assembly is fixedly installed, and the axes of the electric compressor assemblies are at the same height and parallel to the mounting plane; the first adjusting member includes two opposing pressing planes; the sensor is pressed against the mounting plane. Specifically, the pressing planes respectively abut against the surface of the electric compressor assembly and the sensor, so that the exciting force generated by the electric compressor assembly can be transmitted to the sensor through the first adjusting member. The exciting force testing device of the embodiment of this application can transmit the exciting force to the sensor through the first adjusting member, so as to directly measure the exciting force generated by the vibration of the electric compressor assembly. Moreover, the pressing plane abuts against the sensor, making the contact fit degree between the first adjusting member and the sensor high, which can improve the stability and uniformity during the transmission of the exciting force, thereby improving the accuracy of the exciting force data. It can be simulated and detected when the engine has not been installed on the vehicle, that is, when the whole vehicle situation is not yet known, avoiding the time-consuming and laborious process of replacement after unqualified detection after installation, and it has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:

[0017] Figure 1 is an assembled structural schematic diagram of an embodiment of the exciting force testing device of this application;

[0018] Figure 2 is Figure 1 a structural schematic diagram from another perspective direction;

[0019] Figure 3 is Figure 1 a structural schematic diagram from a top view perspective;

[0020] Figure 4 is Figure 1 a structural schematic diagram from a front view perspective. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the present application and not for limiting the present application. Additionally, it should be noted that for the convenience of description, only the parts related to the present application rather than all the structures are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0022] Reference herein to "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] In the description of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0024] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0025] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic assembly structure diagram of an embodiment of the exciting force testing device provided by the present application. Figure 2 is Figure 1Schematic structural diagram from another perspective direction. The present application provides a vibration force testing device, which is used to test the vibration force of an electric compressor assembly 20 and includes a mounting base 11, a first adjusting member 12, and a sensor 13. The mounting base 11 includes a mounting plane 111. The electric compressor assembly 20 is fixedly mounted on the mounting plane 111, and the axis D of the electric compressor assembly 20 is at the same height, such that the electric compressor assembly 20 can be horizontally placed relative to the mounting base 11, and the axis D is parallel to the mounting plane 111, which is convenient for installation and fixation, thereby improving stability, balance, and vibration effect. The first adjusting member 12 includes two opposing pressing planes 121. The sensor 13 is pressed against the mounting plane 111 to support and fix the sensor 13 through the mounting plane 111. Specifically, the pressing planes 121 respectively abut against the surface of the electric compressor assembly 20 and the sensor 13, so that the vibration force generated by the electric compressor assembly 20 can be transmitted to the sensor 13 through the first adjusting member 12. The vibration force testing device according to the embodiment of the present application can transmit the vibration force to the sensor 13 through the first adjusting member 12, so as to directly measure the vibration force generated by the vibration of the electric compressor assembly 20, and the pressing plane 121 abuts against the sensor 13, such that the contact fit degree between the first adjusting member 12 and the sensor 13 is high, which can improve the stability and uniformity during the vibration force transmission process, thereby improving the accuracy of the vibration force data. It can be simulated and detected when the engine has not been installed in the vehicle, that is, when the whole vehicle situation is not yet known, which avoids the time-consuming and laborious process of replacing after failing the detection after installation, and has a simple structure and is easy to operate.

[0026] Further, the vibration force testing device further includes a second adjusting member 15. The second adjusting member 15 includes two opposing abutting surfaces 151. The second adjusting member 15 is located between the sensor 13 and the mounting plane 111, and the abutting surfaces 151 respectively abut against the mounting plane 111 and the sensor 13. When the flatness of the mounting plane 111 is high, resulting in a low fit degree between the mounting plane 111 and the sensor 13, the abutting surfaces 151 can be uniformly in contact with the sensor 13 to increase the area of the contact surface, improve stability, and reduce the influence of the mounting plane 111 on the vibration force transmission.

[0027] When in use, the exciting force testing device of the present application can test the electric compressor assembly 20 alone, directly measure the exciting force of the electric compressor assembly 20, improve the accuracy of the exciting force data, and at the same time avoid the time and effort caused by replacement after failed inspection after installation. The vibration transmission process is from the electric compressor assembly 20 to the first adjusting member 12, and then from the first adjusting member 12 to the sensor 13. During the vibration transmission process, since the first adjusting member 12 respectively abuts against the electric compressor assembly 20 and the sensor 13 through the abutting plane 121, the contact area between the first adjusting member 12 and the electric compressor assembly 20 and the sensor 13 is increased, and the fitting degree is improved, thereby improving the uniformity of the exciting force transmission.

[0028] Furthermore, the sensor 13 and the first adjusting member 12 can be arranged at various positions of the electric compressor assembly 20, so that the exciting force at different positions of the electric compressor assembly 20 can be collected by one sensor 13, relatively reducing the number of sensors 13 required to test the exciting force of the entire electric compressor assembly 20 and reducing the R & D test cost.

[0029] In an embodiment of the present application, please continue to combine Figure 1 and Figure 2 , the mounting base 11 includes a bottom wall 112 and a side wall 113 connected perpendicularly to each other, and the mounting plane 111 is arranged on the side wall 113. The bottom wall 112 is provided with a reference plane 114, the side wall 113 is connected to the reference plane 114, the mounting base 11 further includes a distance adjusting member 14, the distance adjusting member 14 is detachably connected to the mounting plane 111 and the electric compressor assembly 20, and the axis of the distance adjusting member 14 is parallel to the reference plane 114, which can increase the fitting area between the distance adjusting member 14 and the mounting plane 111, improve the uniform force bearing, and further improve the stability.

[0030] Specifically, the axis D of the electric compressor assembly 20 is at the same height relative to the mounting base 11, that is, the axis D is parallel to the reference plane 114, so that the electric compressor assembly 20 can be horizontally placed relative to the mounting base 11, thereby improving stability and balance. The axis D of the electric compressor assembly 20 is parallel to the mounting plane 111, and the axis of the distance adjusting member 14 is perpendicular to the mounting plane 111, thereby increasing the contact area between the distance adjusting member 14 and the mounting plane 111 and the electric compressor assembly 20, and improving the force uniformity and stability. A distance can be provided between the electric compressor assembly 20 and the reference plane 114, so that the electric compressor assembly 20 can be suspended in the air, which can improve the vibration effect of the electric compressor assembly 20, improve or avoid the influence of the bottom wall 112 support on the vibration, and thus improve the accuracy of the exciting force data. The distance adjusting member 14 is located between the mounting plane 111 and the electric compressor assembly 20 and is used to connect the mounting plane 111 and the electric compressor assembly 20, so that the mounting base 11 can support and fix the electric compressor assembly 20, improving stability and safety. Further, the distance adjusting member 14 can also adjust the distance between the electric compressor assembly 20 and the mounting plane 111. By adjusting the length of the distance adjusting member 14, the distance between the electric compressor assembly 20 and the mounting plane 111 can be adjusted, so that the axis of the electric compressor assembly 20 is parallel to the mounting plane 111 and the reference plane 114.

[0031] In one embodiment of the present application, please continue to refer to Figure 3 and Figure 4 , Figure 3 which Figure 1 is a schematic structural view from a top-down perspective, Figure 4 and Figure 1 is a schematic structural view from a front perspective. There are several distance adjusting members 14. The first end 141 of each distance adjusting member 14 is detachably connected to the mounting plane 111, and the distance adjusting members 14 are arranged in parallel along a direction perpendicular to the mounting plane 111 so that the axis of the electric compressor assembly 20 is parallel to the mounting plane 111. A plurality of mounting support angles 21 are provided on the electric compressor assembly 20, and the second end 142 of each distance adjusting member 14 is detachably connected to the corresponding mounting support angle 21.

[0032] Specifically, since the distances between several mounting lugs 21 on the electric compressor assembly 20 and the mounting plane 111 are at least partially unequal, if the electric compressor assembly 20 is directly connected and fixed to the mounting plane 111, there will be no connection between some mounting lugs 21 and the mounting plane 111 or the axis of the electric compressor assembly 20 will intersect with the mounting plane 111, resulting in reduced stability, insufficient support, etc., and reducing the accuracy of the excitation force test results. Therefore, by matching the distance-adjusting members 14 of different lengths with the mounting lugs 21, several mounting lugs 21 can all be connected to the mounting plane 111, the axis of the electric compressor assembly 20 is parallel to the mounting plane 111, improving stability and vibration effects, thereby improving the accuracy of the excitation force test data. The first end 141 and the second end 142 of the distance-adjusting member 14 are respectively in contact with and detachably connected to the mounting plane 111 and the mounting lug 21, which can improve stability. At the same time, it is also convenient to replace the distance-adjusting members 14 of different lengths to adjust the distance between the mounting plane 111 and the mounting lug 21, thereby improving the versatility of the excitation force test device.

[0033] In a specific embodiment, several distance-adjusting members 14 can be cylindrical distance-adjusting pin barrels of different lengths. The first end 141 of the distance-adjusting member 14 is a circular surface, which can improve the degree of fit with the mounting lug 21. In another specific embodiment, the distances between several mounting lugs 21 can also be set to be equal to each other. At this time, the distance-adjusting members 14 can be installed, or the electric compressor assembly 20 can be directly connected and fixed to the mounting plane 111.

[0034] Further, when, after adjustment by the distance-adjusting member 14, the axis of the electric compressor assembly 20 is parallel to the mounting plane 111, and after the first adjusting member 12 and the sensor 13 are connected to the electric compressor assembly 20, there is still a certain distance from the mounting plane 111, the second adjusting member 15 can also play a role in connecting the sensor 13 and the mounting plane 111, enabling the mounting plane 111 to support and fix the sensor 13 through the second adjusting member 15.

[0035] In a specific embodiment of the present application, as Figure 2 shown, the mounting base 11 further includes a connecting member 17, and the connecting member 17 connects the mounting plane 111 and the electric compressor assembly 20. The first adjusting member 12 and the sensor 13 are both provided with a central hole 16. The central hole 16 is sleeved on the connecting member 17, and the diameter of the central hole 16 is larger than the cross-sectional dimension of the connecting member 17.

[0036] Specifically, in order to fix the first adjusting member 12 and the sensor 13, the connecting member 17 can pass through the central hole 16 to be connected with the electric compressor assembly 20, so that the first adjusting member 12 and the sensor 13 are fixedly clamped by the pressure between the mounting plane 111 and the electric compressor assembly 20. The pressing plane 121 of the first adjusting member 12 can respectively abut against the sensor 13 and the mounting support angle 21. The connecting member 17 can be a long bolt, and the mounting support angle 21 can be a bolt support angle. By inserting the long bolt into the bolt support angle and tightening it, the mounting plane 111 and the bolt support angle press and fix the first adjusting member 12 and the sensor 13. Further, the mounting plane 111 and the electric compressor assembly 20 can also be fixedly connected by bolts passing through the side wall 113 and the adjusting member 12 and screwing into the bolt support angle, so as to improve the stability.

[0037] In the above embodiment, the holes of the central hole 16 are all larger than the cross-sectional dimension of the connecting member 17. Specifically, there is a gap between the central hole 16 and the connecting member 17, and there is no contact between the inner wall surface of the central hole 16 and the outer surface of the connecting member 17, so as to improve or avoid the connecting member 17 from transmitting the exciting force. The exciting force generated by the electric compressor assembly 20 is only transmitted to the pressing plane 121 of the first adjusting member 12 through the mounting support angle 21, and then transmitted to the sensor 13 through the pressing plane 121, so as to directly test the exciting force and improve the accuracy.

[0038] Further, in combination with Figures 1 to 4 , the second adjusting member 15 is also provided with a central hole 16 whose aperture is larger than the cross-sectional dimension of the connecting member 17, and the central hole 16 is sleeved on the connecting member 17.

[0039] In order to reduce or avoid the influence of the vibration of the connecting member 17 on the test, the aperture of the central hole 16 of the second adjusting member 15 is also larger than the cross-sectional dimension of the connecting member 17 to prevent the outer surface of the connecting member 17 from contacting the inner wall surface of the central hole 16.

[0040] It should be noted that the aperture of the central hole 16 is 1 mm larger than the cross-sectional dimension of the connecting member 17, which can meet the requirement of reducing or avoiding the contact between the outer surface of the connecting member 17 and the inner wall surface of the central hole 16 due to vibration.

[0041] Through the design and cooperation of the above structures, the sensor 13 in the embodiment of the present application only collects the exciting force on the plane that contacts and fits with the first adjusting member 12, and does not collect the data results that the connecting member 17 or other external forces affect the exciting force, and the accuracy is high.

[0042] In an embodiment of the present application, the flatness of both the pressing plane 121 and the abutting surface 151 is 0.02 mm.

[0043] Specifically, the flatness requirements of the pressing plane 121 and the abutting top surface 151 reach 0.02 mm, so as to improve the fitting degrees of the pressing plane 121 and the abutting top surface 151 with the mounting support angles 21 and the sensor 13 respectively, so that the first adjusting member 12 and the second adjusting member 15 are in uniform contact with the sensor 13 and the mounting plane 111, thereby improving the uniformity of the exciting force transmission and the stability of the connection, and improving the accuracy of the exciting force data.

[0044] In an embodiment of the present application, the first adjusting member 12 is a trapezoidal block, and the pressing plane 121 is the upper and lower bottom surfaces of the trapezoidal block.

[0045] Specifically, since the size of the cross-section of the sensor 13 is larger than the size of the mounting support angle 21, the fitting degree is reduced when the sensor 13 contacts the mounting support angle 21, resulting in a reduction in the uniformity of the exciting force transmission, thereby affecting the accuracy of the exciting force data. Therefore, the first adjusting member 12 is set to be trapezoidal. On the one hand, the upper bottom surface can be in uniform contact with the mounting support angle 21 to improve the fitting degree; on the other hand, the lower bottom surface can be in uniform contact with the end surface of the sensor 13 to increase the area of the fitting contact, thereby improving the uniformity of the exciting force transmission and the accuracy of the exciting force data.

[0046] Further, in another embodiment, the size of the mounting support angle 21 can also be larger than the size of the cross-section of the sensor 13. At this time, the upper bottom surface of the first adjusting member 12 is in contact with the sensor 13, and the lower bottom surface is in contact with the mounting support angle 21. In other embodiments, the size of the mounting support angle 21 can also be equal to the size of the cross-section of the sensor 13, and the first adjusting member 12 can also be cylindrical or other shapes to meet the requirement of uniform contact and improve the fitting degree with the mounting support angle 21 and the sensor 13.

[0047] Further, the second adjusting member 15 can also be a trapezoidal block, with the lower bottom surface in contact with the sensor 13 and the upper bottom surface in contact with the mounting plane 111 to improve the stability of the connection. Of course, the second adjusting member 15 can also include other shapes, which will not be elaborated here.

[0048] In another embodiment of the present application, different from the above embodiment, the sensor 13 directly presses on the mounting plane 111.

[0049] Specifically, since the plane height of the mounting plane 111 is high, it can meet the requirement of uniform contact and fitting with the sensor 13, and when the sensor 13 is in contact with the mounting plane 111 and the axis of the electric compressor assembly 20 can also be parallel to the mounting plane 111, the sensor 13 can be directly pressed on the mounting plane 111 to simplify the structure and reduce the production cost.

[0050] In the above embodiments, the flatness of both the pressing plane 121 and the mounting plane 111 is 0.02 mm.

[0051] Specifically, the flatness requirements of the pressing plane 121 and the mounting plane 111 reach 0.02 mm, so as to improve the fitting degree of the pressing plane 121 and the mounting plane 111 with the mounting support angle 21 and the sensor 13 respectively, so that the sensor 13 is in uniform contact with the first adjusting member 12 and the mounting plane 111, thereby improving the uniformity of the exciting force transmission and the stability of the connection, and improving the accuracy of the exciting force data.

[0052] Furthermore, the mounting base 11 further includes a reference plane 114 perpendicular to the mounting plane 111. The mounting base 11 further includes a distance adjusting member 14. The distance adjusting member 14 is detachably connected to the mounting plane 111 and the electric compressor, and makes the axis of the electric compressor assembly 20 parallel to the reference plane 114. The mounting base 11 further includes a connecting member 17. The first adjusting member 12 and the sensor 13 are both provided with central holes 16. The central holes 16 are sleeved on the connecting member 17, and the aperture of the central hole 16 is larger than the size of the cross section of the connecting member 17. It should be noted that the functions and effects of the cooperation of the reference plane 114, the distance adjusting member 14 and the central hole 16 with the connecting member 17 are the same as those of the above embodiments, and will not be elaborated here.

[0053] In an embodiment of the present application, the exciting force testing device further includes a signal amplifier and a terminal. The signal amplifier is connected to the sensor 13 and the terminal, and is used to amplify the signal collected by the sensor 13 and transmit it to the terminal.

[0054] During use, the electric compressor assembly 20 vibrates to generate an exciting force, which is transmitted to the first adjusting member 12 through the pressing plane 121 that fits with the mounting support angle 21. The first adjusting member 12 then transmits the exciting force to the sensor 13 through the pressing plane 121 that fits with the sensor 13, so as to directly measure the exciting force of the electric compressor assembly 20 and improve the accuracy of the exciting force data. The signal amplifier is connected to the sensor 13 and the terminal. After amplifying the signal collected by the sensor 13 and transmitting it to the terminal, the collected data is analyzed in the analysis system of the terminal, so as to obtain the exciting force data of the electric compressor assembly 20, providing a basis for the subsequent vibration isolation selection and design of the bracket of the electric compressor assembly 20. It should be noted that the terminal can be an electronic device such as a computer, and is provided with software for collecting relevant tests.

[0055] The exciting force testing device of the embodiment of the present application adopts the direct measurement method, which can test the electric compressor assembly 20 alone and directly measure the exciting force of the electric compressor assembly 20, thereby improving the accuracy of the exciting force data and avoiding the time-consuming and laborious process of replacing the electric compressor assembly 20 after the installation inspection fails. At the same time, the exciting force testing device can also measure various positions on the electric compressor assembly 20 through one sensor 13, with a simple structure, easy operation and high versatility, thereby reducing the R & D test cost.

[0056] It should be noted that terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or vertical, but can be slightly inclined; terms such as "parallel" and "perpendicular" do not mean that the fittings are absolutely parallel or perpendicular to each other, but can have a certain angular deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of the present application are usually placed during use. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0057] It can be understood that the meaning of "a plurality of" herein is at least two, such as two, three, etc., unless there are specific restrictive descriptions. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0058] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An exciting force testing device for testing the exciting force of an electric compressor assembly, characterized in that, The exciting force testing device includes: An installation base (11), the installation base (11) includes an installation plane (111), the electric compressor assembly (20) is installed and fixed on the installation plane (111), and the axes of the electric compressor assembly (20) are at the same height and parallel to the installation plane (111); A first adjusting member (12), the first adjusting member (12) includes two opposing pressing planes (121); A sensor (13), the sensor (13) is pressed against the installation plane (111), wherein, The pressing planes (121) respectively abut against the surface of the electric compressor assembly (20) and the sensor (13).

2. The exciting force testing device according to claim 1, wherein The installation base (11) includes a bottom wall (112) and a side wall (113) connected perpendicularly to each other, and the installation plane (111) is arranged on the side wall (113); The bottom wall (112) is provided with a reference plane (114), and the side wall (113) is connected to the reference plane (114); The installation base (11) further includes a distance adjusting member (14), the distance adjusting member (14) is detachably connected to the installation plane (111) and the electric compressor assembly (20), and the axis of the distance adjusting member (14) is parallel to the reference plane (114).

3. The exciting force testing device according to claim 2, characterized in that, There are several distance adjusting members (14); The first end (141) of each distance adjusting member (14) can be detachably connected to the installation plane (111), and the distance adjusting members (14) are arranged in parallel along a direction perpendicular to the installation plane (111); A plurality of installation support angles (21) are provided on the electric compressor assembly (20), and the second end (142) of each distance adjusting member (14) is detachably connected to the corresponding installation support angle (21).

4. The exciting force testing device according to claim 1, wherein The exciting force testing device further includes a connecting member (17), the connecting member connects the installation plane (111) and the electric compressor assembly (20), the first adjusting member (12) and the sensor (13) are both provided with central holes (16), the central holes (16) are sleeved on the connecting member (17), and the diameter of the central holes (16) is larger than the size of the cross-section of the connecting member (17).

5. The exciting force testing device according to claim 4, wherein The exciting force testing device further includes a second adjusting member (15), the second adjusting member (15) is also provided with a central hole (16) whose diameter is larger than the size of the cross-section of the connecting member (17), and the central hole (16) is sleeved on the connecting member; The second adjusting member (15) includes two opposing abutting surfaces (151), the second adjusting member (15) is located between the sensor (13) and the installation plane (111), and the abutting surfaces (151) respectively abut against the installation plane (111) and the sensor (13).

6. The exciting force testing device according to claim 5, characterized in that, The flatness of the pressing plane (121) and the abutting surface (151) is 0.02 mm.

7. The exciting force testing device according to claim 5, wherein The first adjusting member (12) and the second adjusting member (15) are both trapezoidal blocks, and the pressing plane (121) is the upper and lower bottom surfaces of the trapezoidal block.

8. The exciting force testing device according to claim 1, wherein The flatness of both the pressing plane (121) and the mounting plane (111) is 0.02 mm.

9. The exciting force testing device according to claim 8, wherein, The mounting base (11) further includes a reference plane (114) perpendicular to the mounting plane (111); The mounting base (11) further includes a distance adjusting member (14), the distance adjusting member (14) is detachably connected to the mounting plane (111) and the electric compressor assembly (20), and makes the axis of the electric compressor assembly (20) parallel to the reference plane (114); The mounting base (11) further includes a connecting member. Both the first adjusting member (12) and the sensor (13) are provided with central holes (16). The central holes (16) are sleeved on the connecting member, and the diameter of the central holes (16) is larger than the size of the cross-section of the connecting member.

10. The exciting force testing device according to any one of claims 1-9, characterized in that, The exciting force testing device further includes a signal amplifier and a terminal. The signal amplifier is connected to the sensor (13) and the terminal, and is used to amplify the signal collected by the sensor (13) and transmit it to the terminal.

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