A vibration test tool for multiple devices

Abstract

The utility model belongs to automobile air conditioner testing equipment technical field discloses a kind of vibration test tool for multiple equipment, the vibration test tool includes bottom plate and multiple tool bodies, bottom plate is used to be connected with vibration source, multiple tool bodies are spaced apart on bottom plate, each tool body is equipped with mounting space, and mounting space is used to accommodate PTC heater, wherein, mounting space has support surface, PTC heater is inserted into mounting space and is supported by support surface, support surface is arranged at angle with bottom plate, to make PTC heater installed in mounting space be arranged obliquely relative to bottom plate. The operation of the vibration test work is very convenient, and multiple PTC heaters are simultaneously subjected to vibration test in one test, the test efficiency is improved, and the vibration test simulation effectiveness is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air conditioning testing equipment, and in particular to a vibration testing fixture for multiple devices. Background Technology

[0002] The PTC (Positive Temperature Coefficient) heater in automotive air conditioning is a device that uses resistance heating to convert electrical energy into heat energy to raise the temperature inside the vehicle. The main purpose of PTC vibration testing is to evaluate the performance stability and durability of the PTC heater under simulated real-world vibration environments. This includes testing the structural integrity, electrical performance stability, and reliability of the PTC under vibration conditions to ensure it can withstand the effects of various vibration sources during vehicle operation and avoid functional failure or damage. In PTC vibration testing, the PTC heater needs to be fixed on a vibration table in its actual vehicle installation state, and acceleration and vibration are applied for 8 hours each in the vertical, left-right, and front-back directions. In addition, the test may include other vibration parameters, such as vibration frequency and direction (radial and axial), depending on the test requirements. Existing vibration testing fixtures suffer from technical problems such as inconvenient installation and low testing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a vibration testing fixture for multiple devices. This vibration testing fixture has a simple structure, is easy to install, and has high testing efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model discloses a vibration testing fixture for multiple devices, comprising: a base plate for connecting to a vibration source; and multiple fixture bodies spaced apart on the base plate, each fixture body having an installation space for accommodating a PTC heater. The installation space has a support surface, and the PTC heater is inserted into the installation space and supported by the support surface. The support surface is used to support the PTC heater, and is angled with the base plate so that the PTC heater installed in the installation space is inclined relative to the base plate.

[0006] In some embodiments, each of the tooling bodies is provided with a receiving groove, the receiving groove forming the installation space, and the groove opening of the receiving groove forming an opening.

[0007] In some specific embodiments, a heat dissipation vent is formed on the top wall of the receiving groove for heat dissipation.

[0008] In some specific embodiments, each of the tooling bodies is further provided with a mounting groove surrounding the slot, the mounting groove being used to mate with the lower cover of the PTC heater.

[0009] In some embodiments, the tooling body is further provided with fixing holes for installing fasteners to fix the lower cover of the PTC heater to the tooling body.

[0010] In some embodiments, guide ribs are provided on the sidewall of the installation space, and the guide ribs are used to guide the PTC heater into the installation space.

[0011] In some specific embodiments, the guide ribs are disposed on two opposite side walls of the installation space.

[0012] In some embodiments, the tooling body is provided with a receiving space for accommodating the plug of the PTC heater, the receiving space being located below the mounting space.

[0013] In some embodiments, the tooling body includes a main body and a fixing plate, the main body being used to support the PTC heater, and the fixing plate being adjustablely disposed on the base plate.

[0014] In some specific embodiments, the fixing plate is provided with a first adjustment hole, and the base plate is provided with a plurality of second adjustment holes. The adjustment member passes through the first adjustment hole and is connected to the second adjustment hole to fix the fixing plate on the base plate.

[0015] The beneficial effects of this invention are as follows: In actual testing, multiple PTC heaters only need to be inserted into multiple installation spaces, and then the entire vibration testing fixture is installed on the vibration source for testing. The operation is very convenient, and multiple PTC heaters can be tested simultaneously in a single test, improving testing efficiency. Furthermore, because the installation space has a supporting surface, the PTC heaters are inserted into the installation space and supported by the supporting surface. The supporting surface and the base plate are set at an angle, allowing the PTC heaters installed in the installation space to be tilted relative to the base plate. This tilted setting of the PTC heaters is consistent with the state of installation in automotive air conditioners, ensuring that the vibration test environment is as consistent as possible with the actual working environment of the PTC heaters, thus improving the simulation effectiveness of the vibration test.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of a vibration testing fixture for multiple devices according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the main body of the tooling in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the cooperation structure between the vibration testing fixture for multiple devices and the PTC heater according to an embodiment of the present invention.

[0020] Figure label:

[0021] 100. Base plate; 110. Second adjustment hole; 200. Tooling body; 210. Main body; 211. Support surface; 212. Receiving groove; 2121. Groove; 2122. Heat dissipation vent; 213. Mounting groove; 214. Fixing hole; 215. Guide rib; 216. Receiving space; 220. Fixing plate; 221. First adjustment hole; 300. PTC heater. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the drawings, not the entire structure. In the description of the present invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances. In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., are based on the orientation or positional relationship shown in the accompanying drawings and are only for ease of description and simplification of operation, not to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are merely used to distinguish between descriptions and have no special meaning.

[0023] This utility model discloses a vibration testing fixture for multiple devices (hereinafter referred to as vibration testing fixture for ease of description), see reference Figures 1-2As shown, the vibration testing fixture includes a base plate 100 and multiple fixture bodies 200. The base plate 100 is used to connect to the vibration source. The multiple fixture bodies 200 are spaced apart on the base plate 100, and each fixture body 200 has an installation space for accommodating a PTC heater 300. (Reference) Figure 2 and Figure 3 As shown, the installation space has a support surface 211. The PTC heater 300 is inserted into the installation space and supported by the support surface 211. The support surface 211 is set at an angle to the base plate 100, so that the PTC heater 300 installed in the installation space is tilted relative to the base plate 100. It can be understood that in actual testing, multiple PTC heaters 300 only need to be inserted into multiple installation spaces respectively, and then the entire vibration testing fixture is installed on the vibration source for testing. The operation is very convenient, and multiple PTC heaters 300 can be vibrated simultaneously in one test, improving testing efficiency. Furthermore, since the installation space has a support surface 211, the PTC heater 300 is inserted into the installation space and supported by the support surface 211. The support surface 211 is set at an angle to the base plate 100, so that the PTC heater 300 installed in the installation space is tilted relative to the base plate 100. The tilted PTC heater 300 is consistent with the state of being installed in the car air conditioner, ensuring that the vibration test environment is as consistent as possible with the actual working environment of the PTC heater 300, thus improving the simulation effectiveness of the vibration test.

[0024] Referring to Figure 2, each fixture body 200 is provided with a receiving groove 212, which forms an installation space. The PTC heater 300 can be inserted into the receiving groove 212 through the slot 2121. It can be understood that providing the receiving groove 212 on the fixture body 200 as an installation space can better ensure that the PTC heater 300 is stably held on the fixture body 200, thereby ensuring the stable conduct of vibration testing.

[0025] Optionally, a heat dissipation vent 2122 is formed on the top wall of the receiving groove 212 for heat dissipation. It is understood that during the test, the PTC heater 300 will be powered on and generate heat. The heat dissipation vent 2122 can ensure that the PTC heater 300 dissipates heat well when it is powered on and avoids the PTC heater 300 overheating and being damaged during vibration testing.

[0026] refer to Figure 2As shown, each fixture body 200 is also provided with a mounting groove 213 surrounding the slot 2121. The mounting groove 213 is used to mate with the lower cover of the PTC heater 300. It can be understood that when the PTC heater 300 is inserted into the mounting groove 2121, the mounting groove 213 surrounding the slot 2121 can mate with the lower cover of the PTC heater 300, which can limit the PTC heater 300 and prevent the PTC heater 300 from flying out of the mounting groove during vibration testing.

[0027] Optional, see reference Figure 2 As shown, the fixture body 200 is also provided with fixing holes 214, which are used to install fasteners to fix the lower cover of the PTC heater 300 to the fixture body 200. It can be understood that when the PTC heater 300 is inserted into the mounting slot 2121, the mounting groove 213 surrounding the slot 2121 can cooperate with the lower cover of the PTC heater 300. Then, the lower cover of the PTC heater 300 is fixed to the fixture body 200 by the fasteners, further improving the installation stability of the PTC heater 300 and the fixture body 200, thereby preventing the PTC heater 300 from flying out of the mounting groove during vibration testing.

[0028] It should be noted that, in the embodiments of the utility model, the fastener can be selected from screws, pins, or other structures according to actual needs. Of course, in other embodiments of this utility model, the lower cover of the PTC heater 300 can also be directly fixed to the mounting groove 213 via a snap-fit ​​structure, and is not limited to the above-described fixing method.

[0029] refer to Figure 2 As shown, guide ribs 215 are provided on the side wall of the installation space. Guide ribs 215 are used to guide the PTC heater 300 into the installation space. It can be understood that during the test, when the PTC heater 300 is inserted into the installation space, the guide ribs 215 can guide the PTC heater 300, so that the PTC heater 300 can be smoothly inserted into the installation slot.

[0030] Optionally, guide ribs 215 are provided on two opposite side walls of the installation space. It is understood that providing guide ribs 215 on both opposite side walls of the installation space can enhance the guiding function of the PTC heater 300, prevent the PTC heater 300 from tilting during installation, and improve the installation stability of the PTC heater 300 and the tooling body 200.

[0031] It should be noted that the cross-sectional shape and distribution of the guide rib 215 can be selected according to actual needs, and no restrictions are imposed on the specific parameters of the guide rib 215 here.

[0032] refer to Figure 2 As shown, the main body 200 of the fixture is provided with a receiving space 216 for accommodating the connector of the PTC heater 300, and the receiving space 216 is located below the installation space. It can be understood that the receiving space 216 is used to accommodate the connector of the PTC heater 300, so as to ensure that the PTC heater can be powered on and run during the vibration test, further closely resembling the actual working state of PTC heating.

[0033] refer to Figure 2 As shown, the fixture body 200 includes a main body 210 and a fixing plate 220. The main body 210 supports the PTC heater 300, and the fixing plate 220 is adjustablely mounted on the base plate 100. It is understood that because the fixing plate 220 is adjustablely mounted on the base plate 100, during actual testing, by adjusting the position of the fixing plate 220 relative to the base plate 100, the positions of multiple fixture bodies 200 on the base plate 100 can be adjusted, ensuring a suitable distance between the multiple fixture bodies 200 during testing and preventing mutual interference between the multiple PTC heaters 300 during vibration testing.

[0034] Optionally, the fixing plate 220 is provided with a first adjustment hole 221, and the base plate 100 is provided with multiple second adjustment holes 110. An adjusting member passes through the first adjustment hole 221 and connects to the second adjustment holes 110 to fix the fixing plate 220 to the base plate 100. Understandably, during actual assembly, depending on the number of tooling bodies 200, the first adjustment hole 221 can be aligned with different second adjustment holes 110, and then fixed using the adjusting member. This ensures that there is a suitable distance between multiple tooling bodies 200 during testing, preventing mutual interference between multiple PTC heaters 300 during vibration testing. The structure, where the first adjustment hole 221 can selectively correspond to the second adjustment hole 110, facilitates the adjustment of the tooling body 200.

[0035] Optionally, there may be multiple first adjustment holes 221, which are spaced apart along the outer contour of the fixing plate 220. It is understood that fixing the fixing plate 220 with multiple adjustment members can improve the connection stability between the fixing plate 220 and the base plate 100, thereby ensuring the stability of the PTC heater 300 during vibration testing.

[0036] It should be noted that, in the embodiments of the utility model, the adjusting component may be selected from structures such as screws or pins according to actual needs. Of course, in other embodiments of this utility model, the fixing plate 220 may also be directly fixed to the base plate 100 by a snap-fit ​​structure, and is not limited to the above-described fixing method.

[0037] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vibration test tooling for multiple devices, comprising: The utility model relates to a PTC heater mounting device, comprising: a bottom plate (100) for connecting with a vibration source; a plurality of tool bodies (200) are arranged on the bottom plate (100) at intervals, each tool body (200) is provided with a mounting space for accommodating a PTC heater (300), wherein the mounting space has a supporting surface (211), the PTC heater (300) is inserted into the mounting space and supported by the supporting surface (211), and the supporting surface (211) is arranged at an angle with the bottom plate (100) so that the PTC heater (300) mounted in the mounting space is arranged obliquely relative to the bottom plate (100).

2. The vibration test fixture for multiple devices according to claim 1, wherein, Each tool body (200) is provided with an accommodating groove (212) formed as the mounting space, and the groove opening (2121) of the accommodating groove (212) constitutes an opening.

3. The vibration test fixture for multiple devices of claim 2, wherein, A heat dissipation opening (2122) for heat dissipation is formed on the top wall of the accommodating groove (212).

4. The vibration test fixture for multiple devices of claim 2, wherein, Each tool body (200) is further provided with a mounting groove (213) arranged around the groove opening (2121), and the mounting groove (213) is used for cooperating with the lower cover of the PTC heater (300).

5. The vibration test fixture for multiple devices of claim 1, wherein, The tool body (200) is further provided with a fixing hole (214) for mounting a fixing member to fix the lower cover of the PTC heater (300) to the tool body (200).

6. The vibration test fixture for multiple devices of claim 1, wherein, A guide rib (215) is arranged on the side wall of the mounting space, and the guide rib (215) is used for guiding the PTC heater (300) to enter the mounting space.

7. The vibration test fixture for multiple devices of claim 6, wherein, The guide rib (215) is arranged on the two oppositely arranged side walls of the mounting space.

8. The vibration test fixture for multiple devices of claim 1, wherein, The tool body (200) is provided with an accommodating space (216) for accommodating the plug of the PTC heater (300), and the accommodating space (216) is located below the mounting space.

9. The vibration test fixture for multiple devices of claim 1, wherein, The tool body (200) comprises a main body part (210) for supporting the PTC heater (300) and a fixing plate (220) adjustably arranged on the bottom plate (100).

10. The vibration test fixture for multiple devices of claim 9, wherein, The fixing plate (220) is provided with a first adjusting hole (221), and the bottom plate (100) is provided with a plurality of second adjusting holes (110), an adjusting member passes through the first adjusting hole (221) and is connected with the second adjusting hole (110) to fix the fixing plate (220) on the bottom plate (100).

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