Performance test equipment and performance test method for flexible heat dissipation piece

Abstract

The invention provides performance testing equipment and a performance testing method for a flexible heat dissipation piece. The performance testing equipment comprises a shell, a rotating assembly, a fixing assembly and a heating part, wherein the rotating assembly comprises a rotating shaft, a rotating piece and a first temperature measuring piece, the rotating piece is connected to the rotating shaft and can rotate along with the rotating shaft, the first containing groove is used for containing the bent section, and the first temperature measuring piece is configured to measure the temperature of the bent section; the fixing assembly comprises a fixing part and a second temperature measuring part, the second containing groove is used for containing the fixing section, and the second temperature measuring part is configured to measure the temperature of the fixing section; according to the performance test device for the flexible heat dissipation piece, the bending section of the flexible heat dissipation piece can be bent relative to the fixed section under the condition that the rotating piece rotates along with the rotating shaft, so that the heat transfer performance and the bending performance of the flexible heat dissipation piece are synchronously controlled, the test range of the performance test device for the flexible heat dissipation piece is expanded, and the performance evaluation comprehensiveness of the flexible heat dissipation piece is also ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of testing devices, and in particular, the present application relates to a performance testing device and a performance testing method for a flexible heat dissipation member. BACKGROUND

[0002] When facing the heat dissipation problem of electronic devices that need to be frequently bent, heat dissipation can be achieved by setting a flexible heat dissipation member in the electronic device. Therefore, the heat transfer and bending performance of the flexible heat dissipation member play a crucial role in the heat dissipation of the electronic device.

[0003] However, the existing testing devices are mostly for heat transfer testing of the flexible heat dissipation member, and cannot realize combined detection of the bending performance and heat transfer performance of the flexible heat dissipation member, which limits the testing range of the testing device and also affects the performance evaluation of the flexible heat dissipation member. SUMMARY

[0004] An object of an embodiment of the present application is to provide a new technical solution of a performance testing device and a performance testing method for a flexible heat dissipation member.

[0005] According to a first aspect of an embodiment of the present application, a performance testing device for a flexible heat dissipation member is provided, the flexible heat dissipation member comprising a bending segment and a fixed segment, and the performance testing device comprising:

[0006] a housing;

[0007] a rotating assembly and a fixed assembly, both of which are arranged in the housing;

[0008] a heating portion configured to heat one of the bending segment and the fixed segment;

[0009] the rotating assembly comprises a rotating shaft, a rotating member and a first temperature measuring member, the rotating member is connected to the rotating shaft and can rotate with the rotating shaft, the rotating member is provided with a first receiving groove for receiving the bending segment, and the first temperature measuring member is configured to measure the temperature of the bending segment;

[0010] the fixed assembly comprises a fixed member and a second temperature measuring member, the fixed member is provided with a second receiving groove for receiving the fixed segment, and the second temperature measuring member is configured to measure the temperature of the fixed segment;

[0011] In the case that the rotating member rotates with the rotating shaft, the bending segment can be bent relative to the fixed segment.

[0012] Optionally, the rotating member comprises a base and a sliding portion, and the base is connected to the rotating shaft;

[0013] the base has a sliding groove, and the sliding portion is slidingly arranged in the sliding groove.

[0014] Optionally, the sliding part comprises a first sliding seat, a second sliding seat and a first tool, the first tool is provided with the first receiving groove;

[0015] The first sliding seat is arranged in the sliding groove in a first direction, the second sliding seat is connected to the first sliding seat in a second direction, and the first tool is arranged on the second sliding seat.

[0016] Optionally, the heating part comprises a first heating part, the first heating part is arranged in the first receiving groove and opposite to the first temperature measuring part, and the first heating part is configured to heat the bending section.

[0017] Optionally, the rotating part comprises a pressing part, the first heating part is connected to the base through the pressing part, and the pressing part can drive the first temperature measuring part to hold the bending section.

[0018] Optionally, the fixing part comprises a fixing table, a second tool and a limiting shaft, the second tool is arranged on the fixing table and provided with the second receiving groove, and the limiting shaft is arranged vertically on the second receiving groove and can contact the fixed section.

[0019] In the case that the rotating part rotates with the rotating shaft, the bending section can be bent at a set angle relative to the fixed section along the limiting shaft; or the bending section can be continuously bent within a set angle range relative to the fixed section along the limiting shaft.

[0020] Optionally, the limiting shaft is coaxial with the rotating shaft.

[0021] Optionally, the heating part comprises a second heating part, the second heating part is arranged in the second receiving groove and opposite to the second temperature measuring part, and the second heating part is configured to heat the fixed section.

[0022] Optionally, the fixing assembly further comprises a bracket and a movable rod, the bracket is provided with a sliding protrusion, the movable rod is provided with a guide groove, the movable rod is arranged in the sliding protrusion through the guide groove, and the movable rod is used to connect the second temperature measuring part.

[0023] Optionally, the first temperature measuring part comprises a first limiting part and a first fitting part, the first limiting part is configured to contact the bending section and the bending section can slide relative to the first limiting part, and the first fitting part is configured to fit the bending section.

[0024] In the case that the second heating part heats the fixed section, the first fitting part can slide with the bending section while measuring the temperature of the bending section.

[0025] Optionally, the second temperature measuring member comprises a second limiting portion and a second fitting portion, the second limiting portion is configured to contact the fixed segment and the fixed segment is capable of sliding relative to the second limiting portion, and the second fitting portion is configured to fit the fixed segment.

[0026] In the case that the first heating portion heats the bending segment, the second fitting portion is capable of sliding following the fixed segment while measuring the temperature of the fixed segment.

[0027] Optionally, the shell is provided with a display component and a safety component, and the shell has an opening.

[0028] The display component is used to display the test temperature of the first and second temperature measuring members and the bending angle of the flexible heat dissipation member, and the safety component is arranged at the edge of the opening.

[0029] According to a second aspect of the embodiments of the present application, a performance testing method of a flexible heat dissipation member is provided, which is applied to the performance testing device of the first aspect and comprises the following steps:

[0030] The heating portion heats one of the bending segment and the fixed segment;

[0031] The first and second temperature measuring members measure the temperature of the bending segment and the fixed segment of the flexible heat dissipation member, respectively;

[0032] The rotating shaft drives the rotating member to rotate while rotating, so that the bending segment bends relative to the fixed segment.

[0033] Optionally, the rotating shaft drives the rotating member to rotate while rotating, so that the bending segment bends relative to the fixed segment, which comprises:

[0034] The rotating member is driven to rotate following the rotating shaft and to bend the bending segment relative to the fixed segment by a set angle; or the rotating member is driven to rotate following the rotating shaft and to continuously bend the bending segment relative to the fixed segment within a set angle range.

[0035] One technical effect of the present application is that:

[0036] The embodiment of the present application provides a performance testing device of a flexible heat dissipation piece, the performance testing device comprises a shell, a rotating assembly, a fixing assembly and a heating part; wherein the rotating assembly comprises a rotating shaft, a rotating piece and a first temperature measuring piece, the rotating piece is connected to the rotating shaft and can rotate along with the rotating shaft, a first receiving groove is used for receiving a bending section, and the first temperature measuring piece is configured to measure the temperature of the bending section; the fixing assembly comprises a fixing piece and a second temperature measuring piece, a second receiving groove is used for receiving a fixed section, and the second temperature measuring piece is configured to measure the temperature of the fixed section; in the case that the rotating piece rotates along with the rotating shaft, the bending section of the flexible heat dissipation piece can be bent relative to the fixed section, so that the heat transfer performance and the bending performance of the flexible heat dissipation piece are synchronously controlled, the test range of the performance testing device of the flexible heat dissipation piece is expanded, and the performance evaluation comprehensiveness of the flexible heat dissipation piece is ensured.

[0037] Other features of the present application, and their advantages, will become apparent from the following detailed description of the example embodiments of the present application with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0039] Figure 1 An overall view of a performance testing device of a flexible heat dissipation piece provided by an embodiment of the present application;

[0040] Figure 2 A rotating assembly schematic view of a performance testing device of a flexible heat dissipation piece provided by an embodiment of the present application;

[0041] Figure 3 A fixing assembly schematic view of a performance testing device of a flexible heat dissipation piece provided by an embodiment of the present application;

[0042] Figure 4 A shell schematic view of a performance testing device of a flexible heat dissipation piece provided by an embodiment of the present application.

[0043] Wherein: 1, shell; 11, display component; 12, operating component; 13, security component; 2, rotating assembly; 21, rotating shaft; 22, rotating piece; 221, base; 2211, sliding groove; 2212, first base; 2213, second base; 222, sliding part; 2221, first sliding seat; 2222, second sliding seat; 2223, first tooling; 2224, third sliding seat; 223, first heating part; 224, pressing part; 225, fastener; 226, first storage groove; 23, first temperature measuring piece; 24, motor; 3, fixing assembly; 31, fixing piece; 311, second storage groove; 312, fixing table; 313, second tooling; 314, limiting shaft; 315, second heating part; 316, support; 3161, sliding protrusion; 317, movable rod; 3171, guide groove; 32, second temperature measuring piece. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps set forth in the embodiments, numerical expressions, and numerical values, unless specifically stated otherwise, do not limit the scope of the present application.

[0045] Embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the accompanying drawings are exemplary and are for the purpose of explaining the present application only and are not to be understood as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of the present application.

[0046] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise stated. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the present application.

[0048] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0049] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0050] Reference Figures 1 to 3 The embodiment of the application provides a performance testing device of a flexible heat dissipation piece, the flexible heat dissipation piece comprises a bending section and a fixed section, and the performance testing device comprises:

[0051] A housing 1, the housing 1 is used as a frame of the performance testing device, and test components of the performance testing device can be arranged in the housing 1;

[0052] A rotating assembly 2 and a fixed assembly 3, the rotating assembly 2 and the fixed assembly 3 are arranged in the housing 1, the rotating assembly 2 is used for arranging the bending section of the flexible heat dissipation piece, and the fixed assembly 3 is used for arranging the fixed section of the flexible heat dissipation piece;

[0053] A heating part, the heating part is configured to heat one of the bending section and the fixed section, so that heat is transferred between the bending section and the fixed section of the flexible heat dissipation piece, and the heat transfer performance of the flexible heat dissipation piece is facilitated to be tested;

[0054] The rotating assembly 2 comprises a rotating shaft 21, a rotating piece 22 and a first temperature measuring piece 23, the rotating piece 22 is connected to the rotating shaft 21 and can rotate with the rotating shaft 21, the rotating piece 22 is provided with a first receiving groove 226, the first receiving groove 226 is used for receiving the bending section, and the first temperature measuring piece 23 is configured to measure the temperature of the bending section;

[0055] The fixed assembly 3 comprises a fixed piece 31 and a second temperature measuring piece 32, the fixed piece 31 is provided with a second receiving groove 311, the second receiving groove 311 is used for receiving the fixed section, and the second temperature measuring piece 32 is configured to measure the temperature of the fixed section;

[0056] In the case that the rotating piece 22 rotates with the rotating shaft 21, the bending section of the flexible heat dissipation piece can be bent relative to the fixed section.

[0057] In this embodiment, the performance test device can realize the test of heat transfer in the process of bending the flexible heat dissipation member to a set angle or in the process of bending. Specifically, before the rotating member 22 follows the rotation of the rotating shaft 21, the first receiving groove 226 and the second receiving groove 311 can be arranged to be opposite and flush, that is, the bottom surface of the first receiving groove 226 and the bottom surface of the second receiving groove 311 are arranged to be flush, so as to ensure the flatness of the flexible heat dissipation member when the bent section is arranged in the first receiving groove 226 and the fixed section is arranged in the second receiving groove 311.

[0058] The heating part can heat one of the bent section and the fixed section, for example, the heating part heats the bent section, and the heat in the flexible heat dissipation member is transferred from the bent section to the fixed section, and the first temperature measuring part 23 and the second temperature measuring part 32 can monitor the temperature of the bent section and the fixed section, respectively. At the same time, under the condition that the rotating member 22 follows the rotation of the rotating shaft 21, the bent section of the flexible heat dissipation member can be bent relative to the fixed section, which realizes the test of heat transfer of the flexible heat dissipation member under the condition of bending, so that the heat transfer performance and the bending performance of the flexible heat dissipation member are monitored synchronously, the test range of the performance test device of the flexible heat dissipation member is expanded, and the comprehensiveness of the performance evaluation of the flexible heat dissipation member is ensured.

[0059] In one embodiment, the flexible heat dissipation member can be a flexible heat pipe or a flexible vapor chamber, which is beneficial to the stable heat dissipation of the flexible heat dissipation member in electronic devices. For example, in AR devices, VR devices, foldable screen mobile phones and smart wear, the flexible heat pipe and the flexible vapor chamber can realize efficient heat transfer and heat equalization effect of the above-mentioned electronic devices under the condition of folding.

[0060] In one embodiment, referring to Figure 2 The rotating assembly 2 includes a motor 24, and the rotating shaft 21 is connected to the output end of the motor 24. The motor 24 is used to drive the rotating shaft 21 to rotate, so as to realize real-time control of the bending angle, the step degree of the bending angle and the bending frequency of the flexible heat dissipation member through the rotation of the motor 24.

[0061] In another embodiment, the rotation of the rotating shaft 21 can be manually controlled, for example, the rotating shaft 21 has an operating end exposed outside the shell 1, and the rotation of the rotating shaft 21 is realized by manually controlling the operating end.

[0062] In one embodiment, under the condition that the rotating member 22 follows the rotation of the rotating shaft 21, the bending angle range of the flexible heat dissipation member can be in the range of 1-180°, for example, the bending angle of the flexible heat dissipation member is controlled to be 30°, 60°, 90°, 120° or 150°; or the bending angle of the flexible heat dissipation member can be controlled to be in the range of 180-360°, so as to realize large-angle bending test above 180°, and fatigue detection of the flexible heat dissipation member under continuous bending is realized through the control of the bending frequency.

[0063] The performance testing device of the flexible heat dissipation piece provided by the embodiment of the application comprises a shell 1, a rotating assembly 2 and a fixing assembly 3, the rotating assembly 2 and the fixing assembly 3 are arranged in the shell 1; a heating part, the heating part is configured to heat one of the bending segment and the fixed segment; wherein the rotating assembly 2 comprises a rotating shaft 21, a rotating piece 22 and a first temperature measuring piece 23, the rotating piece 22 is connected to the rotating shaft 21 and can rotate with the rotating shaft 21, a first receiving groove 226 is used to receive the bending segment, and the first temperature measuring piece 23 is configured to measure the temperature of the bending segment; the fixing assembly 3 comprises a fixing piece 31 and a second temperature measuring piece 32, a second receiving groove 311 is used to receive the fixed segment, and the second temperature measuring piece 32 is configured to measure the temperature of the fixed segment; under the condition that the rotating piece 22 rotates with the rotating shaft 21, the bending segment of the flexible heat dissipation piece can be bent relative to the fixed segment, so that the heat transfer performance and the bending performance of the flexible heat dissipation piece are synchronously controlled, the test range of the performance testing device of the flexible heat dissipation piece is expanded, and the performance evaluation comprehensiveness of the flexible heat dissipation piece is ensured.

[0064] In one embodiment, referring to Figure 2 , the rotating piece 22 comprises a base 221 and a sliding part 222, the base 221 is connected to the rotating shaft 21, and the sliding part 222 has the above-mentioned first receiving groove 226;

[0065] The base 221 has a sliding groove 2211, and the sliding part 222 is slidingly arranged in the sliding groove 2211.

[0066] In this embodiment, since the sliding part 222 has the first receiving groove 226 used to receive the bending segment of the flexible heat dissipation piece, when the sliding part 222 slides along the sliding groove 2211, the first receiving groove 226 can be opposite to the first temperature measuring piece 23, so that the first temperature measuring piece 23 can measure the temperature of the bending segment.

[0067] In one embodiment, referring to Figure 2 , the sliding part 222 comprises a first sliding seat 2221, a second sliding seat 2222 and a first tooling 2223, and the first tooling 2223 has the above-mentioned first receiving groove 226;

[0068] The first sliding seat 2221 is slidingly arranged in the sliding groove 2211 in a first direction, the second sliding seat 2222 is slidingly connected to the first sliding seat 2221 in a second direction, and the first tooling 2223 is arranged on the second sliding seat 2222.

[0069] In this embodiment, the first direction can be the X direction in Figure 2 , and the second direction can be the Y direction in Figure 2The first sliding seat 2221 is arranged in the sliding groove 2211 and can slide along the X direction, the second sliding seat 2222 can slide along the Y direction relative to the first sliding seat 2221, so that the first tooling 2223 arranged on the second sliding seat 2222 can slide along the X direction and the Y direction, and the flexibility of the position adjustment of the first receiving groove 226 on the first tooling 2223 is improved, and the position adjustment of the bending section of the flexible heat dissipation piece in the first receiving groove 226 is facilitated.

[0070] In one embodiment, referring to Figure 2 , the rotating piece 22 comprises a plurality of fasteners 225, the second sliding seat 2222 is slidably connected to the side of the first sliding seat 2221 away from the base 221, the first sliding seat 2221 is provided with a first sliding groove extending along the X direction, the second sliding seat 2222 is provided with a second sliding groove extending along the Y direction, and part of the fasteners 225 are connected to the base 221 and pass through the first sliding groove to guide the sliding of the first sliding seat 2221; and the remaining part of the fasteners 225 are connected to the base 221 and pass through the second sliding groove to guide the sliding of the second sliding seat 2222.

[0071] In one embodiment, the first tooling 2223 is detachably connected to the second sliding seat 2222, and the first receiving groove 226 on the first tooling 2223 can be customized according to the shape of the flexible heat dissipation piece to be tested, so that the same performance test equipment is applicable to flexible heat dissipation pieces of different shapes. In addition, the second tooling 313 described below has the same detachable property as the first tooling 2223, and the structure of the second receiving groove 311 can be customized according to the shape of the flexible heat dissipation piece to be tested.

[0072] In one embodiment, referring to Figure 2 , the heating part comprises a first heating part 223, the first heating part 223 is arranged in the first receiving groove 226 and opposite to the first temperature measuring piece 23, and the first heating part 223 is configured to heat the bending section.

[0073] In this embodiment, when the first heating part 223 is opposite to the first temperature measuring piece 23, the temperature measuring area of the bending section on the flexible heat dissipation piece is clamped between the first heating part 223 and the first temperature measuring piece 23, so as to facilitate accurate temperature measurement of the bending section by the first temperature measuring piece 23 while the first heating part 223 heats the bending section.

[0074] In one embodiment, referring to Figure 2 , the rotating piece 22 comprises a pressing part 224, the first heating part 223 is connected to the base 221 through the pressing part 224, and the pressing part 224 can hold the bending section with the first temperature measuring piece 23.

[0075] In this embodiment, the base 221 can include a first base 2212 for bearing the sliding part 222 and a second base 2213 connected to the bottom of the first base 2212 and extending from the side of the first base 2212, the extending area of the second base 2213 being used for bearing the pressing part 224.

[0076] Further, a third sliding seat 2224 is arranged on the extending area of the second base 2213 along the Y direction, the third sliding seat 2224 being connected to the pressing part 224 and capable of driving the pressing part 224 and the first temperature measuring piece 23 to slide along the Y axis direction, so as to make the first heating part 223 opposite to the first temperature measuring piece 23.

[0077] In one embodiment, a spring is arranged on the pressing part 224, the spring being used for pulling the pressing part 224 and the first temperature measuring piece 23, so that the first temperature measuring piece 23 can hold the bent segment, and the setting stability of the bent segment in the first receiving groove 226 is ensured, at this time, the bent segment can be heated to test the heat transfer performance of the flexible heat dissipation piece.

[0078] In another embodiment, a magnetic attraction part is arranged on the second base 2213 and the pressing part 224 respectively, the two magnetic attraction parts being magnetically attracted to each other, and the pressing part 224 and the first temperature measuring piece 23 are thus attracted, so that the first temperature measuring piece 23 can be firmly attached to the flexible heat dissipation piece.

[0079] In one embodiment, referring to Figure 3 , the fixing piece 31 includes a fixing table 312, a second tooling 313 and a limiting shaft 314, the second tooling 313 being arranged on the fixing table 312 and provided with the second receiving groove 311, and the limiting shaft 314 being arranged vertically on the second receiving groove 311 and capable of contacting the fixed segment;

[0080] In the case that the rotating piece 22 rotates along with the rotating shaft 21, the bent segment can be bent at a set angle relative to the fixed segment along the limiting shaft 314, or the bent segment can be continuously bent relative to the fixed segment within a set angle range along the limiting shaft 314.

[0081] In this embodiment, the limiting shaft 314 is arranged along a first direction, for example, the limiting shaft 314 is arranged along the X direction in Figure 3 , and the second receiving groove 311 extends along a second direction, for example, the second receiving groove 311 extends along the Y direction in Figure 3 . In the case that the fixed segment is arranged in the second receiving groove 311, the limiting shaft 314 can be vertically pressed on the fixed segment, so as to provide a bending radius of the flexible heat dissipation piece through the radius of the limiting shaft 314.

[0082] In the case that the rotating member 22 rotates following the rotating shaft 21, the angle and the number of bending of the bending section relative to the fixed section along the limiting shaft 314 can be controlled by the control of the rotating angle and the number of rotations of the rotating shaft 21, so as to realize the heat transfer performance test of the flexible heat dissipation member in different bending working conditions.

[0083] In an embodiment, the height of the fixed table 312 is adjustable, for example, the bottom of the fixed table 312 is provided with a supporting member, or the fixed table 312 includes telescopic legs, so as to arrange the second tooling 313 horizontally with the first assembly, and monitor the heat transfer performance of the flexible heat dissipation member while the flexible heat dissipation member is continuously bent.

[0084] In an embodiment, referring to Figure 1 , the limiting shaft 314 is coaxial with the rotating shaft 21.

[0085] In this embodiment, the rotating assembly 2 and the fixed assembly 3 are assembled in the housing 1, for example, the rotating assembly 2 and the fixed assembly 3 are fixed on the bottom plate of the housing 1, the rotating assembly 2 and the fixed assembly 3 do not directly contact, and the limiting shaft 314 is concentrically arranged with the rotating shaft 21, so that when the rotating member 22 rotates following the rotating shaft 21 and drives the bending section to bend, the bending section can keep the limiting shaft 314 as the bending center, which is beneficial to the stability of the flexible heat dissipation member when it is bent at a large angle.

[0086] Further, the radius adjustment of the limiting shaft 314 can adjust the bending radius of the bending section relative to the fixed section, for example, when the bending radius of the bending section relative to the fixed section needs to be large, the radius of the limiting shaft 314 can be increased; when the bending radius of the bending section relative to the fixed section needs to be small, the radius of the limiting shaft 314 can be reduced.

[0087] In an embodiment, referring to Figure 3 , the heating part includes a second heating part 315, the second heating part 315 is arranged in the second receiving groove 311 and opposite to the second temperature measuring member 32, and the second heating part 315 is configured to heat the fixed section.

[0088] In this embodiment, in the case that the second heating part 315 is opposite to the second temperature measuring member 32, the temperature measuring area of the fixed section on the flexible heat dissipation member is clamped between the second heating part 315 and the second temperature measuring member 32, so as to heat the fixed section by the second heating part 315 while accurately measuring the temperature of the fixed section by the second temperature measuring member 32.

[0089] In an embodiment, referring to Figure 3The fixing assembly 3 further comprises a bracket 316 and a movable rod 317. The bracket 316 is provided with a sliding protrusion 3161, and the movable rod 317 is provided with a guide groove 3171. The movable rod 317 is slidably arranged in the sliding protrusion 3161 through the guide groove 3171, and the movable rod 317 is used for connecting the second temperature measuring member 32.

[0090] In this embodiment, the relative position of the second temperature measuring member 32 and the second heating part 315 can be adjusted. The movable rod 317 is slidably arranged in the sliding protrusion 3161 through the guide groove 3171, so that the movable rod 317 can slide along the sliding protrusion 3161, thereby driving the second temperature measuring member 32 to move. When the second temperature measuring member 32 is opposite to the second heating part 315, the sliding protrusion 3161 and the movable rod 317 are locked together, thereby ensuring the position accuracy and temperature measurement stability of the second temperature measuring member 32.

[0091] In one embodiment, the first temperature measuring member 23 comprises a first limiting part and a first abutting part. The first limiting part is configured to contact the bending segment and the bending segment can slide relative to the first limiting part. The first abutting part is configured to abut the bending segment.

[0092] In the case that the second heating part 315 heats the fixed segment, the first abutting part can slide along the bending segment while measuring the temperature of the bending segment.

[0093] In this embodiment, the fixed segment is heated and the bending segment is bent relative to the fixed segment, so as to test the heat transfer performance of the flexible heat dissipation member when it is bent.

[0094] Specifically, the temperature of the second heating part 315 is set, and the second temperature measuring member 32 is enabled. The second temperature measuring member 32 is adjusted to be above the second heating part 315 and in contact with the fixed segment of the flexible heat dissipation member to be measured, so as to clamp the fixed segment by the second temperature measuring member 32 and the second heating part 315. When the bending segment is bent relative to the fixed segment, the bending segment of the flexible heat dissipation member in the first tool 2223 of the rotating assembly 2 slides along the Y-axis direction.

[0095] Therefore, the first abutting part abuts the bending segment and can slide along the bending segment, so as to measure the temperature of the bending segment by the first abutting part, thereby solving the problem that the thermocouple is difficult to fix. The first limiting part slightly contacts the bending segment of the flexible heat dissipation member to be measured but does not limit the sliding of the bending segment, that is, the first limiting part is fixedly arranged, and the bending segment can slide relative to the first limiting part. Therefore, the first limiting part only functions to limit the bending segment of the flexible heat dissipation member in the Z-axis direction, and does not function to measure the temperature.

[0096] In one embodiment, the second temperature measuring member 32 comprises a second limiting portion and a second fitting portion, the second limiting portion is configured to contact the fixed section and the fixed section is capable of sliding relative to the second limiting portion, and the second fitting portion is configured to fit the fixed section;

[0097] In the case where the first heating portion 223 heats the bent section, the second fitting portion is capable of sliding along with the fixed section while measuring the temperature of the fixed section.

[0098] In this embodiment, the heat transfer performance of the flexible heat dissipation member when being bent is tested by heating the bent section and bending the bent section relative to the fixed section.

[0099] Specifically, the processed first tooling 2223 and the second tooling 313 are arranged on the first sliding seat 2221 and the fixed table 312 respectively, and the fixing manner includes detachable connection or adhesion. The first tooling 2223 and the second tooling 313 are arranged on the same height plane, and the flexible heat dissipation member to be tested is placed on the first receiving groove 226 of the first tooling 2223 and the second receiving groove 311 of the second tooling 313. The limiting shaft 314 is located on the upper part of the fixed section of the flexible heat dissipation member to be tested and is in contact with the flexible heat dissipation member.

[0100] The first sliding seat 2221, the second sliding seat 2222 and the third sliding seat 2224 are adjusted so that the first temperature measuring member 23 is located directly above the first heating portion 223, and the first temperature measuring member 23 is pressed on the bent section of the flexible heat dissipation member to be tested by the pressure of the pressing portion 224. Since the flexible heat dissipation member is bent, the fixed section of the flexible heat dissipation member will translate along the Y direction.

[0101] Since the fixed section is not heated in this test mode, the fixed section is capable of sliding along the Y axis direction in the second tooling 313 of the fixing assembly 3. At this time, the second limiting portion is no longer used to measure the temperature of the fixed section of the flexible heat dissipation member, but the second fitting portion is selected to measure the temperature of the fixed section, and the second fitting portion can be adhesively arranged.

[0102] In this embodiment, the second fitting portion fits the fixed section and is capable of sliding along with the fixed section to measure the temperature of the fixed section through the second fitting portion, solving the problem that the thermocouple is difficult to fix. The second limiting portion slightly contacts the fixed section of the flexible heat dissipation member to be tested but does not limit the sliding of the fixed section, that is, the second limiting portion is fixedly arranged, and the fixed section is capable of sliding relative to the second limiting portion, so that the second limiting portion only functions to limit the fixed section of the flexible heat dissipation member in the Z axis direction, but does not function to measure the temperature.

[0103] Then, the heating temperature of the first heating part 223, the bending angle and the bending times of the flexible heat dissipation member are set through the control system, the values of the first temperature measuring part 23 and the second bonding part are monitored through the display part 11, and the bending times are monitored, so that the purposes of testing the heat transfer and the bending performance at the same time are achieved.

[0104] In addition, if the temperatures at different positions of the flexible heat dissipation member are to be monitored, the first temperature measuring part 23 can be contacted with different positions of the bent segment of the flexible heat dissipation member by adjusting the positions of the first sliding seat 2221, the second sliding seat 2222 and the third sliding seat 2224, or the pasting position of the second bonding part on the fixed segment.

[0105] In an embodiment, the first tool 2223 and the second tool 313 can leave a size allowance for the first receiving groove 226 and the second receiving groove 311 in the Y-axis direction when processing, so as to facilitate the sliding of the flexible heat dissipation member in the bending process.

[0106] In an embodiment, referring to Figure 4 , the housing 1 is provided with the display part 11 and the safety part 13, and the housing 1 has an opening;

[0107] The display part 11 is used to display the test temperatures of the first temperature measuring part 23 and the second temperature measuring part 32 and the bending angle of the flexible heat dissipation member, and the safety part 13 is arranged at the edge of the opening.

[0108] In this embodiment, the display part 11 can display the test information in real time, and the test information specifically includes the heating temperatures of the first heating part 223 and the second heating part 315, the monitoring temperatures of the first temperature measuring part 23 and the second temperature measuring part 32, the rotation angle, the rotation step angle, the continuous rotation times and the rotation speed of the flexible heat dissipation member, so as to ensure the controllability of the performance test equipment when testing.

[0109] In an embodiment, the performance test equipment further includes the operation part 12, which can be an operation button to control the start and stop of the performance test equipment; and the safety part 13 can be a safety grating, which is arranged at the opening of the housing 1 to prevent the performance test equipment from injuring the operator when testing.

[0110] In an embodiment, the performance test equipment further includes the control system, which can control the rotation of the motor 24, the heating temperatures of the first heating part 223 and the second heating part 315, and the rotation angle, the rotation step angle, the continuous rotation times and the rotation speed of the flexible heat dissipation member.

[0111] The embodiment of the present application provides a performance test method of a flexible heat dissipation member, which is applied to the performance test equipment and includes the following steps.

[0112] S101, heating one of the bending section and the fixing section by the heating part;

[0113] S102, measuring the temperature of the bending section and the fixing section of the flexible heat-dissipation member respectively by the first temperature measuring part and the second temperature measuring part;

[0114] S103, driving the rotating part to rotate while the rotating shaft rotates, so that the bending section bends relative to the fixing section.

[0115] In this embodiment, the bending section of the flexible heat-dissipation member can bend relative to the fixing section when the rotating part rotates with the rotating shaft, so that the heat transfer performance and the bending performance of the flexible heat-dissipation member are synchronously controlled, the test range of the performance test equipment of the flexible heat-dissipation member is expanded, and the performance evaluation of the flexible heat-dissipation member is ensured to be comprehensive.

[0116] In one embodiment, driving the rotating part to rotate while the rotating shaft rotates, so that the bending section bends relative to the fixing section includes:

[0117] driving the rotating part to rotate with the rotating shaft and make the bending section bend relative to the fixing section by a set angle; or, driving the rotating part to rotate with the rotating shaft and make the bending section continuously bend relative to the fixing section within a set angle range.

[0118] In this embodiment, when the bending section bends relative to the fixing section, the bending section can bend relative to the fixing section once to a set angle, so as to test the heat transfer performance and the bending performance of the flexible heat-dissipation member at a fixed angle; or, the bending section can bend relative to the fixing section multiple times, so as to test the heat transfer performance and the bending performance of the flexible heat-dissipation member in the case of continuous bending, and ensure the performance evaluation of the flexible heat-dissipation member to be comprehensive.

[0119] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A performance testing device for flexible heat sinks, characterized in that, The flexible heat dissipation piece comprises a bending section and a fixing section, and the performance testing device comprises: a shell (1); a rotating assembly (2) and a fixing assembly (3), both of which are arranged in the shell (1); a heating part configured to heat one of the bending section and the fixing section; the rotating assembly (2) comprises a rotating shaft (21), a rotating piece (22) and a first temperature measuring part (23), the rotating piece (22) is connected to the rotating shaft (21) and can rotate with the rotating shaft (21), the rotating piece (22) is provided with a first receiving groove (226) for receiving the bending section, and the first temperature measuring part (23) is configured to measure the temperature of the bending section; the fixing assembly (3) comprises a fixing piece (31) and a second temperature measuring part (32), the fixing piece (31) is provided with a second receiving groove (311) for receiving the fixing section, and the second temperature measuring part (32) is configured to measure the temperature of the fixing section; in the case that the rotating piece (22) rotates with the rotating shaft (21), the bending section can be bent relative to the fixing section.

2. The performance testing apparatus of claim 1, wherein, the rotating piece (22) comprises a base (221) and a sliding part (222), and the base (221) is connected to the rotating shaft (21); the base (221) has a sliding groove (2211), and the sliding part (222) is slidingly arranged in the sliding groove (2211).

3. The performance testing apparatus of claim 2, wherein, the sliding part (222) comprises a first sliding seat (2221), a second sliding seat (2222) and a first tool (2223), and the first tool (2223) has the first receiving groove (226); the first sliding seat (2221) is slidingly arranged in the sliding groove (2211) in a first direction, the second sliding seat (2222) is slidingly connected to the first sliding seat (2221) in a second direction, and the first tool (2223) is arranged on the second sliding seat (2222).

4. The performance testing apparatus of claim 2, wherein, the heating part comprises a first heating part (223), which is arranged in the first receiving groove (226) and opposite to the first temperature measuring part (23), and is configured to heat the bending section.

5. The performance testing apparatus of claim 4, wherein, the rotating piece (22) comprises a pressing part (224), the first heating part (223) is connected to the base (221) through the pressing part (224), and the pressing part (224) can drive the first temperature measuring part (23) to hold the bending section.

6. The performance testing apparatus of claim 1, wherein, the fixing piece (31) comprises a fixing table (312), a second tool (313) and a limiting shaft (314), the second tool (313) is arranged on the fixing table (312) and provided with the second receiving groove (311), and the limiting shaft (314) is arranged vertically on the second receiving groove (311) and can contact the fixing section; In the case that the rotating member (22) follows the rotation of the rotating shaft (21), the bending section can be bent at a set angle relative to the fixed section along the limiting shaft (314); or, the bending section can be continuously bent within a set angle range relative to the fixed section along the limiting shaft (314).

7. The performance testing apparatus of claim 6, wherein, The limiting shaft (314) is coaxial with the rotating shaft (21).

8. The performance testing apparatus of claim 1, wherein, The heating part includes a second heating part (315) arranged in the second receiving groove (311) and opposite to the second temperature measuring member (32), and configured to heat the fixed section.

9. The performance testing apparatus of claim 8, wherein, The fixed assembly (3) further includes a bracket (316) and a movable rod (317), the bracket (316) has a sliding protrusion (3161) thereon, the movable rod (317) has a guide groove (3171) thereon, and the movable rod (317) is arranged in the sliding protrusion (3161) through the guide groove (3171), and the movable rod (317) is used for connecting the second temperature measuring member (32).

10. The performance testing apparatus of claim 8, wherein, The first temperature measuring member (23) includes a first limiting part and a first fitting part, the first limiting part is configured to contact the bending section and the bending section can slide relative to the first limiting part, and the first fitting part is configured to fit the bending section. In the case that the second heating part (315) heats the fixed section, the first fitting part can slide following the bending section while measuring the temperature of the bending section.

11. The performance testing apparatus of claim 5, wherein, The second temperature measuring member (32) includes a second limiting part and a second fitting part, the second limiting part is configured to contact the fixed section and the fixed section can slide relative to the second limiting part, and the second fitting part is configured to fit the fixed section. In the case that the first heating part (223) heats the bending section, the second fitting part can slide following the fixed section while measuring the temperature of the fixed section.

12. The performance testing apparatus of claim 1, wherein, The shell (1) is provided with a display component (11) and a safety component (13), and has an opening; The display component (11) is used for displaying the test temperature of the first temperature measuring member (23) and the second temperature measuring member (32) and the bending angle of the flexible heat dissipation member, and the safety component (13) is arranged at the edge of the opening.

13. A method for testing performance of a flexible heat dissipating member, applied to the performance testing device according to any one of claims 1-12, characterized in that, Comprising: Heating one of the bending section and the fixed section by the heating part; Measuring the temperature of the bending section and the fixed section of the flexible heat dissipation member by the first temperature measuring member and the second temperature measuring member respectively; The rotating shaft drives the rotating member to rotate while rotating, so that the bending section bends relative to the fixed section.

14. The performance testing method of claim 13, wherein, The rotating shaft drives the rotating member to rotate while rotating, so that the bending section bends relative to the fixed section, comprising: Driving the rotating member to follow the rotating shaft to rotate and make the bending section bend at a set angle relative to the fixed section; or, driving the rotating member to follow the rotating shaft to rotate and make the bending section continuously bend within a set angle range relative to the fixed section.

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