CN218445241U

CN218445241U - Simulation heat source test fixture

Info

Publication number: CN218445241U
Application number: CN202222702093.5U
Authority: CN
Inventors: 江辽; 李榕
Original assignee: Shenzhen Gongjin Electronics Co Ltd
Current assignee: Shenzhen Gongjin Electronics Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-02-03
Anticipated expiration: 2032-10-13

Abstract

The application discloses simulation heat source test fixture relates to temperature test technical field. The simulated heat source test tool comprises a base, a fixing mechanism and at least one simulated heat source; the at least one simulated heat source is detachably arranged on one side of the base; the fixing mechanism is used for pressing the sample to be tested on one side of the at least one simulated heat source far away from the base. The simulated heat source test tool can improve the reliability and the reference value of test data.

Description

Simulation heat source test fixture

Technical Field

The application relates to the technical field of temperature testing, in particular to a simulation heat source testing tool.

Background

In the process of processing electronic products, performance tests are usually performed on various parts. For example, a heat conduction performance test is performed on the heat sink to ensure that the heat sink meets the heat dissipation requirement of the electronic product in the working process.

However, in the conventional simulated heat source testing device, a single simulated heat source is usually arranged, and the position of the simulated heat source is relatively fixed, so that the actual application scene of the heat sink cannot be accurately simulated, and the reliability and the reference value of the test data are low.

SUMMERY OF THE UTILITY MODEL

The application provides a simulation heat source test tool to promote the reliability and the reference value of test data.

The application provides a simulation heat source test fixture, include:

a base;

the at least one simulated heat source is detachably arranged on one side of the base; and

and the fixing mechanism is used for pressing the sample to be tested on one side of the at least one simulated heat source, which is far away from the base.

In some possible embodiments, the fixing mechanism comprises at least one group of pressing modules, and the pressing modules comprise pressing bars and at least one pressure adjusting assembly;

the pressing bar is installed on one side, close to the at least one simulated heat source, of the base in a floating mode through the at least one pressure adjusting assembly.

In some possible embodiments, the pressure regulating assembly comprises:

the adjusting rod comprises a guide rod and a limiting edge which are connected, one end of the guide rod, which is far away from the limiting edge, sequentially penetrates through the pressing strip and the base, one end of the guide rod, which is far away from the limiting edge, is detachably connected with the base, and the guide rod can extend and retract relative to the base; and

the elastic piece is sleeved on the guide rod, one end of the elastic piece is abutted to one side, close to the guide rod, of the limiting edge, and the other end of the elastic piece is abutted to one side, far away from the base, of the pressing strip.

In some possible embodiments, the guide rod comprises a first scale marking extending in an axial direction of the guide rod.

In some possible embodiments, the pressing strip is provided with a step hole, and the guide rod penetrates through the step hole;

the step hole comprises a step surface facing one side of the limiting edge, and one end, far away from the limiting edge, of the elastic piece abuts against the step surface.

In some possible embodiments, the pressure adjusting assembly further comprises at least one pressing head, and the at least one pressing head is detachably mounted on one side, close to the base, of the pressing strip.

In some possible embodiments, the pressing strip is provided with a plurality of first assembling holes for connecting the pressing head, and the plurality of first assembling holes are sequentially arranged along the extending direction of the pressing strip.

In some possible embodiments, the base is provided with a plurality of second assembling holes for connecting the fixing mechanism;

the plurality of second assembly holes are arranged in an array along a first direction and a second direction respectively, and the first direction is perpendicular to the second direction.

In some possible embodiments, the base further includes a second scale mark, the second scale mark is located on a side of the base close to the simulated heat source, and the second scale mark is used for locating the position of the simulated heat source.

In some possible embodiments, the simulated heat source comprises:

the mounting seat is detachably connected to the base;

the heating source is arranged in the mounting seat; and

the cover plate is detachably connected to one side, away from the base, of the mounting seat, and a supporting portion is arranged on one side, away from the mounting seat, of the cover plate in a protruding mode.

The beneficial effect of this application is: the application provides a simulation heat source test fixture, including base, fixed establishment and an at least simulation heat source. At least one simulation heat source is detachably connected to the base, and the fixing mechanism can be used for pressing a sample to be tested on the simulation heat source. It can be understood that when the simulated heat source test tool is used, the number and the positions of the simulated heat sources can be adjusted according to needs, so that the test environment provided by the simulated heat source test tool is closer to the actual application scene of the sample to be tested, the test data is closer to the actual use data, and the test data has higher reliability and reference value.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic perspective view of a simulated heat source test fixture in some embodiments;

FIG. 2 illustrates a schematic diagram of an explosive structure of a simulated heat source test fixture in some embodiments;

FIG. 3 illustrates a schematic diagram of a partial cross-sectional view of a simulated heat source test fixture in some embodiments;

FIG. 4 is a schematic diagram illustrating a cross-sectional view of a portion of another simulated heat source test fixture in accordance with certain embodiments;

FIG. 5 illustrates a partial structural view of an adjustment stem in some embodiments;

FIG. 6 is a schematic cross-sectional view of a molding in some embodiments;

fig. 7 shows a schematic diagram of an explosive structure of a simulated heat source in some embodiments.

Description of the main element symbols:

100-a base; 110-a second scale mark; 120-a second assembly hole;

200-simulated heat source; 210-a mount; 211-a mounting groove; 220-a heat-generating source; 230-a cover plate; 231-a support portion;

300-a securing mechanism; 310-a compression module; 311-pressing strips; 3111-stepped holes; 3112-first assembly hole; 3113-step surface; 312-a pressure regulating assembly; 3121-adjusting lever; 31211-a guide bar; 31212-a stop lip; 31213-first tick mark; 3122-an elastic member; 313-indenter; 3131-threaded posts;

410-a first direction; 420-a second direction;

500-test sample.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The embodiment provides a simulated heat source test tool which can be used for testing the heat conduction performance of a radiator waiting test sample 500 and can improve the reliability and reference value of test data.

As shown in fig. 1 and 2, the simulated heat source test tool may include a base 100, a fixing mechanism 300, and at least one simulated heat source 200.

Wherein, base 100 can be used as the installation carrier in the simulation heat source test frock. Accordingly, other structural members in the simulated heat source test fixture may be attached to the base 100 for installation.

In the embodiment, the number of the simulated heat sources 200 may be set as desired, for example, the number of the simulated heat sources 200 may be set to one, two, three, four, or six, etc. Specifically, the number of the simulated heat sources 200 may be set according to the number of the heat sources in the actual application scene of the sample 500 to be tested, so that the test scene is closer to the actual application scene of the sample 500 to be tested, and the reliability and the reference value of the test data are improved. The heat source in the actual application scene of the sample bottle 500 to be tested may be a chip on a circuit board or other structural members.

In addition, the dummy heat source 200 is detachably installed at one side of the base 100. That is, the installation position of each simulated heat source 200 can be adjusted as necessary. Specifically, the installation position of the simulated heat source 200 may be set according to the position of the heat source in the actual application scene of the sample 500 to be tested. Therefore, the test scene is closer to the actual application scene of the sample 500 to be tested, and the reliability and the reference value of the test data are further improved.

As shown in fig. 1 and fig. 2, in the embodiment, the fixing mechanism 300 may be configured to press the sample 500 to be tested against a side of the simulation heat source 200 away from the base 100, so as to perform heat transfer between the simulation heat source 200 and the sample 500 to be tested, thereby implementing a heat conduction performance test on the sample 500 to be tested.

When the heat conductivity of the sample 500 to be tested is tested, the number and the installation position of the simulated heat sources 200 can be set according to the actual application scene of the sample 500 to be tested. Subsequently, the sample 500 to be tested may be placed on the side of the simulated heat source 200 away from the base 100, and the sample 500 to be tested may be pressed against the simulated heat source 200 by the fixing mechanism 300. Thereafter, the simulated heat source 200 may be activated to generate heat. In this process, the heat generated by the simulated heat source 200 can be dissipated outwardly through the sample 500 to be tested. It can be understood that, in the testing process of the sample 500 to be tested, the testing tool of the simulated heat source 200 may be used in combination with the temperature sensor, and the temperature of the sample 500 to be tested in the testing process may be obtained through the temperature sensor, so as to obtain the thermal conductivity of the sample 500 to be tested.

Further, as shown in fig. 1 and 2, the base 100 may include a second scale mark 110, and the second scale mark 110 may be located on a side of the base 100 adjacent to the simulated heat source 200. In one embodiment, the position of each simulated heat source 200 can be precisely located by the second scale markings 110.

In particular, the second scale markings 110 may include a first scale line extending in the first direction 410 and a second scale line extending in the second direction 420. The first direction 410 may be parallel to the x-axis, and the second direction 420 may be parallel to the y-axis, i.e., the first direction 410 is perpendicular to the second direction 420. Accordingly, the position coordinates of the simulated heat sources 200 can be determined according to the second scale markings 110, so that each simulated heat source 200 can be precisely positioned and mounted on the base 100.

In some embodiments, the simulated heat source 200 may be adhered to the base 100 by double-sided adhesive. When the test is completed, the simulated heat source 200 may be removed from the base 100. Therefore, the detachable connection between the simulated heat source 200 and the base 100 is realized, and the setting position of the simulated heat source 200 on the base 100 is convenient to adjust.

As shown in fig. 1 and 2, the fixing mechanism 300 may include at least one set of pressing modules 310, which may be used to press the sample 500 to be tested against the simulated heat source 200. In some embodiments, the fixture 300 may include two sets of clamping modules 310 that ensure that the sample 500 to be tested is uniformly stressed.

Of course, in other embodiments, the fixing mechanism 300 may further include one, three, or five sets of the pressing modules 310.

In an embodiment, the two sets of pressing modules 310 may have the same structure. The following description will take one of the pressing modules 310 as an example.

As shown in fig. 2, the compression module 310 may include a compression bar 311 and at least one pressure adjustment assembly 312. The pressing bar 311 may be a rod-shaped structure and is disposed parallel to the base 100. The pressure bar 311 may be floatingly mounted to the side of the base 100 adjacent to the simulated heat source 200 by at least one pressure adjustment assembly 312. That is, the vertical distance between the pressing bar 311 and the base 100 is adjustable. Therefore, the pressure applied to the sample 500 to be tested by the pressing module 310 can be adjusted as required, so as to test the thermal conductivity of the sample 500 to be tested under different pressures.

In some embodiments, the pressing module 310 may include two pressure adjusting components 312, and the two pressure adjusting components 312 may be respectively disposed at two ends of the pressing bar 311 to mount the pressing bar 311 on the base 100 in a floating manner.

Of course, in other embodiments, the pressing module 310 may also include one, three, or five sets of pressure adjustment assemblies 312.

In one embodiment, the two pressure adjustment assemblies 312 may be identical in structure and installation. The following description will take one of the pressure adjusting assemblies 312 as an example.

Referring also to fig. 3-5, in some embodiments, pressure adjustment assembly 312 may include an adjustment lever 3121 and a resilient member 3122. Wherein, the axial direction of the adjustment lever 3121 may be perpendicular to the base 100. The adjustment lever 3121 may include an integral guide 31211 and a limit rim 31212. The limit rim 31212 may be located at one end of the guide bar 31211, and the limit rim 31212 may protrude with respect to the circumferential direction of the guide bar 31211.

In an embodiment, an end of the guide 31211 away from the limit edge 31212 may sequentially pass through the pressing strip 311 and the base 100. The end of the guide 31211 away from the limit edge 31212 is detachably connected to the base 100, and the guide 31211 can be extended and retracted relative to the base 100. Thus, the vertical distance between the retaining rim 31212 and the base 100 can be adjusted as desired.

In some embodiments, an end of the guide 31211 distal from the limit rim 31212 may be threadably engaged with the base 100. In use, the vertical distance between the limiting rim 31212 and the base 100 can be adjusted by screwing the adjusting lever 3121.

Specifically, the circumferential side wall of the guide 31211 may be provided with an external thread, and the external thread may extend from an end of the guide 31211 near the limit rim 31212 to an end of the guide 31211 away from the limit rim 31212. The base 100 may be formed with second fitting holes 120 for coupling the guide 31211. In an embodiment, the second mounting hole 120 may be a threaded hole, and the internal thread of the second mounting hole 120 is matched with the external thread of the guide rod 31211.

Referring to fig. 1, in some embodiments, the base 100 may be formed with a plurality of second assembly holes 120, and the plurality of second assembly holes 120 may be respectively arranged in an array along the first direction 410 and the second direction 420. Accordingly, the connecting position of the guide rod 31211 and the base 100 can be adjusted as required, that is, the position of the pressing module 310 relative to the base 100 can be adjusted as required, so as to meet the testing requirements of different samples 500 to be tested.

In other embodiments, the second assembly hole 120 may be a through hole structure with a smooth inner wall. Compression module 310 may also include a limit nut. The limiting nut may be screwed to an end of the guide bar 31211 away from the limiting rim 31212, and the limiting nut may be limited to a side of the base 100 away from the simulated heat source 200.

As shown in fig. 3, in some embodiments, the elastic member 3122 may be a spring. The elastic member 3122 may be disposed around the guide rod 31211. One end of the elastic member 3122 can abut against one side of the limiting rim 31212 close to the guide rod 31211, and the other end of the elastic member 3122 can abut against one side of the pressing strip 311 away from the base 100.

In other embodiments, the elastic member 3122 may also be an elastic sheet or a flexible column, and a plurality of elastic members 3122 may be disposed around the guide rod 31211.

Referring to fig. 6, a stepped hole 3111 may be formed on the pressing bar 311, and the guide rod 31211 may penetrate through the pressing bar 311 through the stepped hole 3111. It is understood that the step hole 3111 may include a step surface 3113, and the step surface 3113 may face the side of the limit rim 31212. In an embodiment, an end of the elastic member 3122 away from the limiting rim 31212 may abut against the stepped surface 3113.

Of course, in other embodiments, the end of the elastic member 3122 away from the limiting edge 31212 can also abut against the surface of the pressing strip 311 away from the side of the base 100.

As shown in fig. 1, 3 and 5, the guide rod 31211 further includes a first scale mark 31213, and the first scale mark 31213 may extend in an axial direction of the guide rod 31211. And, the first scale mark 31213 may extend from the end of the guide bar 31211 near the limit rim 31212 to the end of the guide bar 31211 far from the limit rim 31212. Therefore, the vertical distance between the limiting edge 31212 and the base 100 can be read through the first scale mark 31213, the elastic force of the elastic member 3122 can be obtained, and the magnitude of the acting force applied to the sample 500 to be tested by the fixing mechanism 300 can be further calculated by combining the stiffness coefficient of the elastic member 3122.

It is understood that the elastic member 3122 may be in a compressed state during use of the simulated heat source test fixture.

As shown in fig. 2 and 4, the pressing module 310 further includes at least one pressing head 313, and the pressing head 313 may be protruded from a side of the pressing bar 311 close to the base 100. In the process of using the simulated heat source test fixture, the pressure head 313 can directly abut against one side of the sample 500 to be tested, which is far away from the simulated heat source 200.

In other embodiments, the pressing bar 311 may also directly press the side of the sample 500 away from the simulated heat source 200 to apply pressure to the sample 500.

In some embodiments, the pressing module 310 may include two pressing heads 313. The two pressing heads 313 can disperse the acting force applied by the pressing module 310 to the sample 500 to be tested, so that each part of the sample 500 to be tested is uniformly stressed, and the sample 500 to be tested is prevented from being inclined or damaged due to local stress, and the smooth test is prevented from being influenced.

In other embodiments, the pressing module 310 may also include one, three, or five pressing heads 313.

In an embodiment, the pressing head 313 is detachably connected to the pressing bar 311. In some embodiments, the end of the ram 313 remote from the base 100 can be threadably coupled to the bead 311. Specifically, the end of the ram 313 remote from the base 100 may include a length of threaded post 3131. The pressing bar 311 may be opened with a first fitting hole 3112, the first fitting hole 3112 may be a threaded hole, and the first fitting hole 3112 is adapted to the threaded post 3131 of the pressing head 313. Therefore, the pressure head 313 and the pressing strip 311 can be detachably connected in a threaded manner.

In other embodiments, the pressure head 313 and the pressing bar 311 can be detachably connected by means of a snap, a double-sided adhesive or a tight fit.

As shown in fig. 4, in some embodiments, a plurality of first fitting holes 3112 may be formed on the pressing strip 311, and the first fitting holes 3112 may be sequentially arranged along an extending direction of the pressing strip 311. Therefore, the connecting position of the pressure head 313 and the pressing bar 311 can be adjusted as required to adjust the force application position of the pressing module 310 on the sample 500 to be tested, so as to meet the test requirement of the sample 500 to be tested.

Further, as shown in fig. 3 and 7, the simulated heat source 200 may include a mount 210, a heat generating source 220, and a cover plate 230. The mounting base 210 may be adhered to the base 100 by a double-sided adhesive tape. One side of the mounting seat 210 away from the base 100 may be opened with a mounting groove 211, and the heat source 220 may be embedded in the mounting groove 211. The cover plate 230 can cover a side of the mounting seat 210 away from the base 100 and can close the mounting groove 211. When the simulated heat source test fixture is used, the sample 500 to be tested may contact the cover plate 230 for heat transfer.

In other embodiments, the mounting base 210 may be detachably connected to the base 100 by screws or other structures.

In an embodiment, the cover plate 230 further includes a support 231 protruding from the mounting base 210 for contacting the sample 500 to be tested. In some embodiments, cover plate 230 may be removably coupled to mount 210 by double-sided adhesive bonding, screw bonding, interference fit, snap fit, or the like. Accordingly, the cover plate 230 with the supporting portions 231 of different sizes may be replaced as required, so that the area of the simulated heat source 200 contacted by the sample 500 to be tested in the testing process is close to the area of the heat source contacted by the sample 500 to be tested in the actual application scenario. Therefore, the reliability and the reference value of the test data can be further improved.

When the simulated heat source test tool is used for testing the sample 500 to be tested, the number and the installation positions of the simulated heat sources 200 can be set according to the actual application scene of the sample to be tested. In addition, the cover plate 230 in the simulated heat source 200 can be adjusted according to the area of the heat source contacted in the actual application scene of the sample 500 to be tested. Subsequently, the sample 500 to be tested may be placed on the side of the simulated heat source 200 away from the base 100, and the heated position of the sample 500 to be tested in the actual application scene is in contact with the supporting portion 231 of the simulated heat source 200. Thereafter, the sample 500 to be tested is pressed against the simulated heat source 200 by the fixing mechanism 300. In the testing process, the pressure applied to the sample 500 to be tested by the fixing mechanism 300 can be adjusted as required to test the heat conduction performance of the sample 500 to be tested under different pressures. It is understood that, during the testing process, the heating power of the heating source 220 can also be adjusted to test the thermal conductivity of the sample 500 to be tested at different temperatures.

In conclusion, the simulated heat source test tool provided by the application can be closer to the actual application scene of the sample to be tested 500, so that the test data is closer to the data of the actual application scene, and the simulated heat source test tool has higher reliability and reference value. Meanwhile, the simulated heat source test tool can also meet the test requirements of different samples to be tested 500, and has higher universality.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a simulation heat source test fixture which characterized in that includes:

a base;

2. The simulated heat source test tool of claim 1, wherein the fixing mechanism comprises at least one set of compression modules, and the compression modules comprise compression bars and at least one pressure adjusting assembly;

3. The simulated heat source test tool of claim 2, wherein the pressure adjustment assembly comprises:

4. A simulated heat source test fixture as claimed in claim 3, wherein the guide rod comprises a first scale mark, the first scale mark extending in an axial direction of the guide rod.

5. The simulated heat source test tool as claimed in claim 3, wherein the trim strip is provided with a step hole, and the guide rod is arranged in the step hole in a penetrating manner;

6. A simulated heat source test tool according to any one of claims 2 to 5, wherein the pressure adjusting assembly further comprises at least one pressure head, and the at least one pressure head is detachably mounted on one side of the pressing bar close to the base.

7. The simulated heat source test tool of claim 6, wherein the pressing strip is provided with a plurality of first assembling holes for connecting the pressing head, and the plurality of first assembling holes are sequentially arranged along the extending direction of the pressing strip.

8. The simulated heat source testing tool as claimed in claim 1, wherein the base is provided with a plurality of second assembling holes for connecting the fixing mechanism;

9. The simulated heat source test tool of claim 1 or 8, wherein the base further comprises a second scale mark, the second scale mark is located on one side of the base close to the simulated heat source, and the second scale mark is used for locating the position of the simulated heat source.

10. The simulated heat source test tool of claim 1, wherein the simulated heat source comprises:

the mounting seat is detachably connected to the base;

the heating source is arranged in the mounting seat; and

the cover plate is detachably connected to one side, far away from the base, of the mounting seat, and a supporting portion is arranged on one side, far away from the mounting seat, of the cover plate in a protruding mode.