Impact testing device

Abstract

The utility model provides an impact test device. The impact test device comprises an impact test fixture and a temperature control system, the impact test fixture comprises a first sub-fixture and a second sub-fixture, and a containing space is formed between the first sub-fixture and the second sub-fixture and used for containing a to-be-tested product. The first sub-clamp is provided with a first channel, the first channel extends in the first direction and penetrates through the first sub-clamp, the first channel is used for communicating the containing space with the outside, and the impact object makes contact with the to-be-tested product through the first channel; the first sub-clamp and / or the second sub-clamp are / is provided with a second channel, the second channel extends in the second direction and is arranged around the containing space, and the temperature control system is arranged in the second channel. Wherein the first direction intersects with the second direction. According to the invention, the accuracy and reliability of the impact test are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic product testing, in particular to an impact testing device. BACKGROUND

[0002] Impact testing is a test method that a prescribed weight of weight is freely dropped from a predetermined height on a product to be tested, and the product to be tested is impacted to evaluate the impact resistance of the material or product, determine the energy required for the material to break or be damaged, and simulate the impact conditions that the material or product may encounter in actual use.

[0003] At present, most impact tests are carried out at room temperature. If the impact performance of a product at different temperatures needs to be tested, the product needs to be baked and / or frozen first, and then taken out for testing; or the impact test is directly carried out in a large environmental chamber. The above-mentioned methods not only have high cost and low efficiency, but also have a deviation between the preset temperature and the actual temperature during the impact test, resulting in inaccurate impact test results and errors. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the defects of the prior art, the present application provides an impact testing device.

[0005] The specific technical solutions are as follows:

[0006] An impact testing device comprises an impact testing fixture and a temperature control system; the impact testing fixture comprises a sub-clamp one and a sub-clamp two, and a containing space is formed between the sub-clamp one and the sub-clamp two, which is used to contain a product to be tested;

[0007] A first channel is arranged on the sub-clamp one, the first channel extends along a first direction and penetrates through the sub-clamp one to communicate the containing space with the outside, and an impact object contacts the product to be tested through the first channel;

[0008] A second channel is arranged on the sub-clamp one and / or the sub-clamp two, the second channel extends along a second direction, and the second channel is arranged around the containing space, and the temperature control system is arranged in the second channel;

[0009] Wherein, the first direction and the second direction intersect.

[0010] In one embodiment, the second channel comprises a second channel one and a second channel two;

[0011] At least two second channel ones are arranged on the sub-clamp one, and the two second channel ones are symmetrically distributed on both sides of the containing space;

[0012] Two or more second channels two are arranged on the sub-jig two, and the two or more second channels two are arranged at intervals along the circumferential direction of the accommodation space.

[0013] In one embodiment, the accommodation space extends along the second direction and penetrates the sub-jig one and / or the sub-jig two.

[0014] And / or, the second channel penetrates the sub-jig one and / or the sub-jig two.

[0015] In one embodiment, the impact testing device further comprises an electrical performance testing system, the electrical performance testing system comprising a first electrode and a second electrode, the first electrode being connected to the sub-jig one or the sub-jig two, and the second electrode being connected to two ends of the product to be tested through two wires.

[0016] In one embodiment, the first channel is located on the sub-jig one, the sub-jig one is arranged on the sub-jig two, and the part of the sub-jig two not covered by the sub-jig one is provided with a mounting hole, and the sub-jig two is arranged on the support surface through the mounting hole.

[0017] In one embodiment, the depth direction of the first channel extends along a first direction, and the length direction of the first channel extends along a second direction.

[0018] And / or, the first direction and the second direction are perpendicular to each other.

[0019] In one embodiment, the end of the first channel communicating with the outside has a rounded corner structure.

[0020] In one embodiment, one of the sub-jig one and the sub-jig two is provided with an accommodation groove, and the other covers the opening of the accommodation groove to form an accommodation space between the sub-jig one and the sub-jig two.

[0021] Or, the sub-jig one is provided with a first accommodation groove, the sub-jig two is provided with a second accommodation groove, and the first accommodation groove and the second accommodation groove are correspondingly arranged to form an accommodation space between the sub-jig one and the sub-jig two.

[0022] In one embodiment, the product to be tested comprises a photovoltaic connector.

[0023] In one embodiment, the interval between two second channels one symmetrically distributed in the width direction of the first channel is greater than the width of the first channel, and the width direction of the first channel intersects the first direction and the second direction, respectively.

[0024] The present application has at least the following beneficial effects:

[0025] The application provides an impact test device, comprising an impact test fixture and a temperature control system; the impact test fixture comprises a first sub fixture and a second sub fixture, and a containing space is formed between the first sub fixture and the second sub fixture, and the containing space is used for containing a product to be tested; a first channel is arranged on the first sub fixture, the first channel extends along a first direction and penetrates through the first sub fixture, the first channel is used for connecting the containing space with the outside, and an impact object contacts the product to be tested through the first channel; a second channel is arranged on the first sub fixture and / or the second sub fixture, the second channel extends along a second direction, and the second channel is arranged around the containing space, and the temperature control system is arranged in the second channel; wherein the first direction and the second direction intersect.

[0026] The application can make the impact object accurately contact the product to be tested through the first channel, and can accurately control the temperature of the product to be tested through the second channel, so that the accuracy and reliability of the impact test are improved.

[0027] The application can avoid the mutual interference between the first channel and the second channel by reasonably planning the positions of the first channel and the second channel, ensure that the contact path of the impact object and the product to be tested is not blocked, ensure the stable work of the temperature control system, and improve the space utilization of the impact test fixture. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 The overall schematic diagram of the impact test fixture provided for the embodiment is shown in the figure;

[0030] Figure 2 The explosion schematic diagram of the impact test fixture provided for the embodiment is shown in the figure;

[0031] Figure 3 The structure schematic diagram of the first sub fixture provided for the embodiment is shown in the figure; Figure 1

[0032] Figure 4 The structure schematic diagram of the first sub fixture provided for the embodiment is shown in the figure; Figure 2

[0033] The structure schematic diagram of the first sub fixture provided for the embodiment is shown in the figure; Figure 5 Figure 3

[0034] Reference signs: ​​​

[0035] 1-Sub-gripper one; 2-Sub-gripper two; 3-Containing space; 4-Impact object; 5-Product to be tested; 6-Connector; 11-First channel; 12-Second channel one; 13-First containing groove; 21-Second channel two; 22-Mounting hole; 23-Second containing groove; 31-First lead wire; 32-Second lead wire; 61-Screw connection structure; 62-Nut; 111-Round corner structure; X-First direction; Y-Second direction. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] At present, most of the impact tests are carried out at room temperature. If the impact performance of the product at different temperatures needs to be tested, the product needs to be baked and / or frozen first, and then taken out for testing; or directly impact test in a large environmental chamber. The above method not only has high cost and low efficiency, but also has deviation between the preset temperature and the actual temperature during impact test, which leads to inaccurate impact test results and errors.

[0040] Based on this, the present embodiment provides an impact test device, such as Figures 1 to 5As shown, the impact testing device includes an impact testing fixture and a temperature control system (not shown in the figure), the impact testing fixture includes a sub-clamp one 1 and a sub-clamp two 2, and a containing space 3 is formed between the sub-clamp one 1 and the sub-clamp two 2, and the containing space 3 is used to contain a product 5 to be tested;

[0041] The sub-clamp one 1 is provided with a first channel 11, the first channel 11 extends along a first direction X and penetrates through the sub-clamp one 1 to communicate the containing space 3 with the outside, and the impact object 4 contacts the product 5 to be tested through the first channel 11;

[0042] The sub-clamp one 1 and / or the sub-clamp two 2 is provided with a second channel, the second channel extends along a second direction Y, and the second channel is arranged around the containing space 3, and the temperature control system is arranged in the second channel;

[0043] Wherein, the first direction X and the second direction Y intersect.

[0044] The first channel 11 and the second channel are arranged in the embodiment, so that the impact object 4 can accurately contact the product 5 to be tested through the first channel 11, and the temperature control system can accurately control the temperature of the product 5 to be tested through the second channel, thereby improving the accuracy and reliability of the impact test.

[0045] And the positions of the first channel 11 and the second channel are reasonably planned in the embodiment, so as to avoid the mutual interference between the first channel 11 and the second channel, ensure that the contact path of the impact object 4 and the product 5 to be tested is not blocked, and ensure that the temperature control system works stably, and at the same time, the space utilization of the impact testing device is improved.

[0046] In one embodiment, the product 5 to be tested includes a photovoltaic connector.

[0047] In one embodiment, the width of the first channel 11 is less than the outer diameter of the product 5 to be tested, and the width of the first channel 11 is greater than the outer diameter of the contact end of the impact object 4 used to contact the product 5 to be tested. The embodiment makes the impact object 4 pass through the first channel 11 to contact the product 5 to be tested smoothly, and at the same time avoids the product 5 to be tested from falling out of the impact testing fixture through the first channel 11.

[0048] As shown in Figure 1 , Figure 3 and Figure 5 In one embodiment, the depth direction of the first channel 11 extends along the first direction X, and the length direction of the first channel 11 extends along the second direction Y. The embodiment increases the length of the first channel 11, so that the area of the product 5 to be tested exposed to the first channel 11 increases, which is helpful to more comprehensively simulate various impact conditions that the product may suffer in actual use, and improves the accuracy and comprehensiveness of the test.

[0049] Specifically, the contact end of the impact object 4 can be in contact with the middle, end, or other parts of the product 5 to be tested through the first channel 11.

[0050] As shown in the drawings, Figures 3 to 5 In one embodiment, the end of the first channel 11 that is in communication with the outside world has a rounded corner structure 111. This embodiment can disperse the impact force exerted by the impact object 4 when an error occurs during the falling process of the impact object 4, reduce the stress on the end of the first channel 11 that is in communication with the outside world, and thus reduce the risk of deformation of the end of the first channel 11 that is in communication with the outside world.

[0051] As shown in the drawings, Figure 1 In one embodiment, the first direction X and the second direction Y are perpendicular to each other. Specifically, the second direction Y is parallel to the support surface, and the first direction X is perpendicular to the support surface.

[0052] As shown in the drawings, Figures 1 to 5 In one embodiment, the second channel penetrates the sub-clamp one 1 and / or the sub-clamp two 2. This embodiment increases the contact area of the second channel with the sub-clamp one 1 and / or the sub-clamp two 2, which helps to improve the accuracy of the temperature control system when performing temperature control, so that the accommodation space 3 can be maintained in a preset temperature environment. At the same time, this embodiment can externalize the control part of the temperature control system and set the heat conduction part of the temperature control system in the second channel, which helps to reduce the volume of the impact test clamp.

[0053] In one embodiment, the temperature control system includes an oil temperature control system, but is not limited thereto.

[0054] In one embodiment, the temperature control range of the temperature control system is between -30°C and 100°C, but is not limited thereto.

[0055] As shown in the drawings, Figure 1 In one embodiment, the first channel 11 is located on the sub-clamp one 1, the sub-clamp one 1 is arranged on the sub-clamp two 2, the part of the sub-clamp two 2 that is not covered by the sub-clamp one 1 is provided with a mounting hole 22, and the sub-clamp two 2 is arranged on the support surface through the mounting hole 22.

[0056] Specifically, the mounting hole 22 is provided with a fastener, and the fastener is fixed to the support surface after passing through the mounting hole 22.

[0057] This embodiment makes the impact test clamp have a modular feature, and users can flexibly select and combine different sub-clamps according to the specific test requirements to adapt to different sizes, shapes, or weights of the product 5 to be tested. Moreover, the modular design allows the sub-clamp one 1 to be replaced individually when it is damaged, without the need to replace the entire impact test clamp, thereby reducing maintenance costs and time.

[0058] As shown in the drawings, Figures 1 to 2As shown, in one embodiment, sub-clamp 1 is provided with a first receiving groove 13, and sub-clamp 2 is provided with a second receiving groove 23. The first receiving groove 13 and the second receiving groove 23 are provided correspondingly so that a receiving space 3 is formed between sub-clamp 1 and sub-clamp 2.

[0059] This embodiment enables one of the first receiving groove 13 and the second receiving groove 23 to quickly position the product to be tested 5, and the other to limit the product to be tested 5, so as to prevent the product to be tested 5 from leaving the receiving space 3; at the same time, it can prevent the product to be tested 5 from being broken by the impacting object 4 and splashing out, causing injury to personnel and equipment, thus improving the safety of the impact testing device.

[0060] In one embodiment, the cross-section of the first receiving groove 13 and the cross-section of the second receiving groove 23 are both semi-circular.

[0061] In another embodiment, one of the sub-clamp 1 and the sub-clamp 2 is provided with a receiving groove, and the other covers the opening of the receiving groove so that a receiving space 3 is formed between the sub-clamp 1 and the sub-clamp 2.

[0062] like Figures 1 to 2 As shown, in one embodiment, the second channel includes a second channel 12 and a second channel 21;

[0063] The sub-clamp 1 is provided with at least two second channels 12, which are symmetrically distributed on both sides of the accommodating space 3.

[0064] The second fixture 2 is provided with two or more second channels 21, which are spaced apart along the circumferential direction of the accommodating space 3.

[0065] This embodiment enables the temperature control system to achieve multi-point temperature control, providing more uniform coverage of the containment space 3. This helps reduce the temperature gradient in the containment space 3 and improves the overall uniformity and stability of temperature control. Furthermore, because the temperature control system is distributed across multiple second channels, the containment space 3 can reach the required temperature setpoint more quickly during testing, helping to shorten waiting time during testing or processing and improve production efficiency.

[0066] like Figure 1 and Figure 4 As shown, in one embodiment, the distance between two symmetrically distributed second channels 12 in the width direction of the first channel 11 is greater than the width of the first channel 11, wherein the width direction of the first channel 11 intersects the first direction X and the second direction Y, respectively.

[0067] This embodiment separates the second channel 12 from the first channel 11, avoiding their intersection and preventing interference between the temperature control system and the impact material, thus improving the accuracy and reliability of the impact test.

[0068] like Figure 1 As shown, in one embodiment, the receiving space 3 extends along the second direction Y and passes through sub-clamp 1 and / or sub-clamp 2. This allows the performance testing system to extend into the receiving space 3 and contact the product under test 5 to perform performance testing on the product under test 5.

[0069] This embodiment adds a path connecting the accommodating space 3 to the outside world, making it easier for the performance testing system to come into contact with the product under test 5.

[0070] like Figure 1 As shown, in one embodiment, the impact testing device further includes an electrical performance testing system, which includes a first electrode (not shown in the figure) and a second electrode (not shown in the figure). The first electrode is connected to a sub-clamp 1 or a sub-clamp 2, and the second electrode is connected to both ends of the product 5 to be tested via two wires (a first wire 31 and a second wire 32).

[0071] This embodiment expands the applicability of the impact testing device, enabling the monitoring of changes in leakage current and insulation resistance during impact testing of the product under test 5. Specifically, when the product under test 5 is an electrical device, the dynamic changes in the electrical performance of the product under test 5 during impact testing can be directly tested through the electrical performance testing system, which helps to accurately assess the electrical performance and reliability of the product under extreme conditions.

[0072] In one embodiment, connectors 6 are provided at both ends of the product under test 5. The connectors 6 are detachably connected to the product under test 5. The first wire 31 and the second wire 32 are respectively connected to the product under test 5 through the connectors 6 at both ends of the product under test 5.

[0073] In one embodiment, such as Figure 2 As shown, the connector 6 and the product under test are detachably connected through a threaded connection structure 61, and the connector 6 is a nut 62.

[0074] Note that the above description is merely a preferred embodiment and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this application, and the scope of this application is determined by the scope of the appended claims.

[0075] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An impact testing device, characterized in that, It includes an impact testing fixture and a temperature control system; the impact testing fixture includes a first sub-fixture and a second sub-fixture, and a receiving space is formed between the first sub-fixture and the second sub-fixture, the receiving space being used to receive the product to be tested; The sub-clamp is provided with a first channel, which extends along a first direction and penetrates the sub-clamp to connect the receiving space with the outside. The impactor contacts the product to be tested through the first channel. The sub-clamp one and / or the sub-clamp two are provided with a second channel, the second channel extends along a second direction and is arranged around the receiving space, and the temperature control system is arranged in the second channel; The first direction and the second direction intersect.

2. The impact testing device according to claim 1, characterized in that, The second channel includes second channel one and second channel two; The sub-clamp is provided with at least two second channels, which are symmetrically distributed on both sides of the accommodating space. The sub-clamp is provided with two or more second channels, which are spaced apart along the circumferential direction of the accommodating space.

3. The impact testing device according to claim 1, characterized in that, The accommodating space extends along the second direction and passes through the first sub-clamp and / or the second sub-clamp; And / or, the second channel extends through the first sub-clamp and / or the second sub-clamp.

4. The impact testing device according to claim 3, characterized in that, The impact testing device also includes an electrical performance testing system, which includes a first electrode and a second electrode. The first electrode is connected to either the first sub-clamp or the second sub-clamp, and the second electrode is connected to both ends of the product to be tested via two wires.

5. The impact testing device according to claim 1, characterized in that, The first sub-clamp is disposed on the second sub-clamp, and the portion of the second sub-clamp not covered by the first sub-clamp is provided with mounting holes. The second sub-clamp is disposed on the support surface through the mounting holes.

6. The impact testing apparatus according to claim 1, characterized in that, The depth direction of the first channel extends along a first direction, and the length direction of the first channel extends along a second direction; And / or, the first direction and the second direction are perpendicular to each other.

7. The impact testing apparatus according to claim 1, characterized in that, The end of the first channel that connects to the outside has a rounded corner structure.

8. The impact testing apparatus according to claim 1, characterized in that, One of the sub-clamps is provided with a receiving groove, and the other covers the opening of the receiving groove so that a receiving space is formed between the sub-clamps. Alternatively, the first sub-clamp is provided with a first receiving groove, and the second sub-clamp is provided with a second receiving groove, with the first receiving groove and the second receiving groove being provided correspondingly so that a receiving space is formed between the first sub-clamp and the second sub-clamp.

9. The impact testing device according to claim 1, characterized in that, The product to be tested includes a photovoltaic connector.

10. The impact testing apparatus according to claim 2, characterized in that, In the width direction of the first channel, the distance between two symmetrically distributed second channels is greater than the width of the first channel, wherein the width direction of the first channel intersects the first direction and the second direction respectively.

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