Heating type test fixture

Abstract

The utility model provides a heating type test fixture, which relates to the technical field of semiconductor testing and comprises a fixing plate, an operating mechanism, a heat insulation pressing plate and a heating plate. The heat insulation pressing plate is slidably connected with the fixing plate in the thickness direction of the fixing plate, and the operating mechanism is rotationally connected with the fixing plate and used for driving the heat insulation pressing plate to slide in the direction away from the fixing plate. The heating plate is connected with the heat insulation pressing plate and can float relative to the heat insulation pressing plate in the thickness direction of the fixing plate. The heating type test fixture provided by the utility model can reduce the manufacturing difficulty, and ensure the stability of pressure borne by a product and the accuracy of a test result.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of semiconductor test, especially to a heating type test fixture. BACKGROUND

[0002] As a core component of modern electronic equipment, the importance of integrated circuits is increasingly highlighted with the development of information technology. In the fields of semiconductor manufacturing, electronic product production and scientific research institutions, integrated circuit testing machines, as a professional equipment for detecting the function and performance of integrated circuits, play an indispensable role. It can not only simulate the actual application environment, but also evaluate whether the function of integrated circuit is normal and the performance meets the design requirements through various detection methods.

[0003] Traditional integrated circuit testing machines are usually equipped with fixed pressure plates to realize physical contact and signal transmission of the tested integrated circuits. However, with the rapid growth of chip integration and function, the internal structure of integrated circuit becomes extremely complex, and the requirement for external physical contact is more stringent. The design of fixed pressure plate gradually shows limitations, mainly reflected in the high position accuracy requirement of the pressure plate, which increases the manufacturing difficulty and leads to the difficulty in controlling the pressure applied to the product, affecting the accuracy of test results. SUMMARY

[0004] The purpose of the utility model is to provide a heating type test fixture, which can reduce the manufacturing difficulty, ensure the stability of the pressure applied to the product and the accuracy of the test results.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a heating type test fixture, which comprises a fixed plate, an operating mechanism, a heat insulation pressure plate and a heating plate.

[0007] The heat insulation pressure plate is slidingly connected with the fixed plate along the thickness direction of the fixed plate, the operating mechanism is rotationally connected with the fixed plate, and the operating mechanism is used for driving the heat insulation pressure plate to slide towards the direction away from the fixed plate.

[0008] The heating plate is connected with the heat insulation pressure plate and can float relative to the heat insulation pressure plate along the thickness direction of the fixed plate.

[0009] Further, the operating mechanism comprises a handle, a swing rod and a lifting plate, the handle and the swing rod are both rotationally connected with the fixed plate, the lifting plate is located on the side of the fixed plate facing the heat insulation pressure plate and is rotationally connected with the handle and the swing rod, and the lifting plate is used for driving the heat insulation pressure plate to slide towards the direction away from the fixed plate.

[0010] Further, the lifting plate has a plurality of pressing wheels for pressing the heat insulation pressing plate.

[0011] Further, the heat insulation pressing plate has an elastic connecting piece elastically connected with the fixing plate along the thickness direction of the fixing plate, and the elastic connecting piece is configured to apply an elastic force to the heat insulation pressing plate to move the heat insulation pressing plate towards the fixing plate.

[0012] Further, the side of the heat insulation pressing plate facing the fixing plate is provided with a limiting piece for limiting the moving distance of the heat insulation pressing plate towards the fixing plate.

[0013] Further, the side of the heat insulation pressing plate away from the fixing plate is provided with a pressing block for pressing the product to be tested, and the pressing block is located at the side of the heating plate.

[0014] Further, the heat insulation pressing plate and the heating plate are provided with a first elastic piece and a connecting piece, the heating plate is slidably connected with the heat insulation pressing plate along the thickness direction of the fixing plate through the connecting piece, and the first elastic piece is configured to apply an elastic force to the heating plate to move the heating plate away from the fixing plate.

[0015] Further, the side wall of the heating plate is provided with a first hole for mounting a heating rod and a second hole for mounting a sensor.

[0016] Further, the heating test clamp further comprises a front support and a rear support, the rear end of the fixing plate is rotationally connected with the rear support, and the front end of the fixing plate is detachably connected with the front support.

[0017] Further, the front end of the fixing plate is detachably connected with the front support through a locking handle, the locking handle is rotationally connected with the front end of the fixing plate, a second elastic piece is arranged between the locking handle and the fixing plate, and the second elastic piece is configured to apply an elastic force to the locking handle to lock the locking handle to the front support.

[0018] Further, the surface of the front support for contacting the fixing plate is provided with an anti-collision pad.

[0019] The heating test clamp provided by the utility model has the following beneficial effects:

[0020] The heating type test fixture provided by the utility model is used, the heat insulation pressing plate can be driven to move away from the fixed plate by the operating mechanism, the heating plate is gradually close to the product to be tested by the heat insulation pressing plate, the heating plate can float along the direction of gradually closing to the heat insulation pressing plate after contacting the product to be tested, the flexible pressing of the heating plate is realized, the requirement of position precision between the heating plate and the product to be tested is reduced, the manufacturing difficulty is reduced, the stability of the pressure borne by the product and the accuracy of the test result are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced as follows, obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0022] Figure 1 The side view of the heating type test fixture provided by the embodiment of the utility model is provided;

[0023] Figure 2 The three-dimensional structure schematic view when the inner plate body cooperates with the operating mechanism provided by the embodiment of the utility model is provided;

[0024] Figure 3 The three-dimensional structure schematic view of the heating type test fixture under the first visual angle provided by the embodiment of the utility model is provided;

[0025] Figure 4 The three-dimensional structure schematic view when the heat insulation pressing plate cooperates with the heating plate provided by the embodiment of the utility model is provided;

[0026] Figure 5 The bottom view when the heat insulation pressing plate cooperates with the heating plate provided by the embodiment of the utility model is provided;

[0027] Figure 6 The A-A sectional view of Figure 5 ;

[0028] Figure 7 The B-B sectional view of Figure 5 ;

[0029] Figure 8 The three-dimensional structure schematic view of the heating plate provided by the embodiment of the utility model is provided;

[0030] Figure 9 The three-dimensional structure schematic view of the heating type test fixture under the second visual angle provided by the embodiment of the utility model is provided.

[0031] Icon: 1 - fixed plate; 11 - outer plate body; 111 - fixing frame; 12 - inner plate body; 13 - channel; 2 - operating mechanism; 21 - handle; 211 - upper extension; 212 - lower extension; 213 - connecting rod; 22 - swing lever; 23 - lifting plate; 231 - pressing wheel; 3 - heat insulation pressing plate; 31 - elastic connecting piece; 32 - limiting piece; 33 - pressing block; 4 - heating plate; 41 - first hole position; 42 - second hole position; 5 - first elastic piece; 6 - connecting piece; 7 - front support; 71 - anti-collision pad; 8 - rear support; 9 - locking handle. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only some 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.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship 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 on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" 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; it can be the communication between two elements inside. 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.

[0035] The specific embodiments of the present application will be described in detail below in combination with the drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0036] The present embodiment is to provide a heating type test fixture, as shown in Figure 1 and Figure 2 It comprises a fixed plate 1, an operating mechanism 2, a heat insulation pressing plate 3 and a heating plate 4.

[0037] The heat insulation pressing plate 3 is slidingly connected with the fixing plate 1 along the thickness direction of the fixing plate 1, and the operating mechanism 2 is rotationally connected with the fixing plate 1, and the operating mechanism 2 is used to drive the heat insulation pressing plate 3 to slide towards the direction away from the fixing plate 1.

[0038] The heating plate 4 is connected with the heat insulation pressing plate 3 and can float relative to the heat insulation pressing plate 3 along the thickness direction of the fixing plate 1.

[0039] In use, the operating mechanism 2 can be rotated to drive the heat insulation pressing plate 3 to move towards the direction away from the fixing plate 1, and the heating plate 4 on the heat insulation pressing plate 3 gradually approaches the product to be tested. After the heating plate 4 contacts the product to be tested, the heating plate 4 can float in the direction gradually approaching the heat insulation pressing plate 3, so as to avoid generating large pressure on the product to be tested. In this way, the requirement of position accuracy between the heating plate 4 and the product to be tested can be reduced, thereby reducing the manufacturing difficulty, ensuring the stability of the pressure on the product and the accuracy of the test result.

[0040] The operating mechanism 2 can be manually controlled or electrically controlled.

[0041] When electrically controlled, the operating mechanism 2 can be a linear motion mechanism such as a pneumatic cylinder, a hydraulic cylinder or a linear motor, or a combination of a rotary motor and a transmission assembly, the transmission assembly can convert rotary motion into linear motion, and the transmission assembly can be a screw nut structure or a gear and rack structure. That is, any structure that can drive the heat insulation pressing plate 3 to slide towards the direction away from the fixing plate 1 can be the operating mechanism 2 of the above embodiment.

[0042] When manually controlled, the rotary motor and the like can be replaced by manual operation.

[0043] In an optional embodiment, as shown in Figure 2 The operating mechanism 2 includes a handle 21, a swing rod 22 and a lifting plate 23, the handle 21 and the swing rod 22 are rotationally connected with the fixing plate 1, the lifting plate 23 is located on the side of the fixing plate 1 facing the heat insulation pressing plate 3 and is rotationally connected with the handle 21 and the swing rod 22, and the lifting plate 23 is used to drive the heat insulation pressing plate 3 to slide towards the direction away from the fixing plate 1.

[0044] In use, the handle 21 is pressed down to drive the swing rod 22 to rotate together with the handle 21 through the lifting plate 23, the lifting plate 23 gradually moves away from the fixing plate 1 and pushes down the heat insulation pressing plate 3, until the handle 21 swings to the position as shown in Figure 2 The lifting plate 23 is farthest away from the fixing plate 1.

[0045] The handle 21, the swing lever 22 and the lifting plate 23 in the operating mechanism 2 form a four-bar linkage mechanism with the fixed plate 1, and the user can adjust the lifting of the lifting plate 23 by controlling the rotation of the handle 21, which is simple in structure and convenient to assemble.

[0046] Specifically, as shown in Figure 2 the handle 21 comprises an operating rod, which comprises an upper extending part 211 and a lower extending part 212. The upper extending part 211 extends away from the side of the fixed plate 1 facing the heat insulation pressing plate 3 for the user to hold and operate, and the position where the upper extending part 211 connects with the lower extending part 212 is hinged to the fixed plate 1. The lower extending part 212 extends toward the side of the fixed plate 1 facing the heat insulation pressing plate 3, and the end of the lower extending part 212 away from the upper extending part 211 is hinged to the lifting plate 23.

[0047] To make the operation of the user more convenient, the operating rod and the swing lever 22 are both configured as two, and the two operating rods and the two swing levers 22 are both hinged to the fixed plate 1, and the lifting plate 23 is hinged between the two lower extending parts 212 and the two swing levers 22. In the two operating rods, the ends of the upper extending parts 211 away from the lower extending parts 212 are connected by a connecting rod 213, and the user can hold the connecting rod 213 to jointly press down or lift up the two operating rods.

[0048] In addition, the swing lever 22 extends toward the side of the fixed plate 1 facing the heat insulation pressing plate 3, and the two ends of the swing lever 22 are hinged to the fixed plate 1 and the lifting plate 23, respectively. The extending direction of the swing lever 22 is parallel to the extending direction of the lower extending part 212, and the length of the swing lever 22 is equal to the length of the lower extending part 212.

[0049] In the above embodiment, since the extending direction of the swing lever 22 is parallel to the extending direction of the lower extending part 212, and the length of the swing lever 22 is equal to the length of the lower extending part 212, the lifting plate 23 can always be parallel to the fixed plate 1 during the swing of the swing lever 22, and the force can be uniformly applied to the heat insulation pressing plate 3.

[0050] In an optional embodiment, as shown in Figure 2 the lifting plate 23 has a plurality of pressing wheels 231 for pressing the heat insulation pressing plate 3, and the bottom end of the pressing wheel 231 protrudes from the surface of the lifting plate 23 away from the fixed plate 1.

[0051] In use, each pressing wheel 231 can apply a pressing force to the heat insulation pressing plate 3 from different points to ensure the synchronous pressing of the heat insulation pressing plate 3 and make the stress more uniform.

[0052] In an optional embodiment, as shown in Figure 3As shown, the fixing plate 1 includes an outer plate 11 and an inner plate 12. The outer plate 11 is fitted onto the outside of the inner plate 12, and a channel 13 is provided between the outer plate 11 and the inner plate 12 for the upper extension 211 to protrude upward. In this way, the outer plate 11 can shield the operating mechanism 2, and the operating mechanism 2 is hidden inside the fixing plate 1 to ensure the overall aesthetics.

[0053] Specifically, the outer panel 11 and the inner panel 12 can be detachably connected by screws to facilitate the disassembly of the outer panel 11 and the inner panel 12.

[0054] In addition, such as Figure 9 As shown, a fixing frame 111 can also be provided on the side of the outer plate 11. The fixing frame 111 has wiring positions for wiring to facilitate the wiring of the fixture.

[0055] In alternative implementations, such as Figure 3 As shown, the heat insulation plate 3 has an elastic connector 31. The elastic connector 31 is elastically connected to the outer plate body 11 along the thickness direction of the fixed plate 1. The elastic connector 31 is configured to apply an elastic force to the heat insulation plate 3 to move the heat insulation plate 3 toward the fixed plate 1.

[0056] The elastic connector 31 not only prevents the heat insulation plate 3 from falling off the fixed plate 1 under the influence of gravity, but also allows the heat insulation plate 3 to move toward the fixed plate 1 by its own elasticity when the lifting plate is raised, thereby realizing the reset of the heat insulation plate 3.

[0057] The elastic connector 31 may, but is not limited to, use an elastic fixing pin.

[0058] It should be noted that, as Figure 2 As shown, when the lifting plate 23 is pressed down into place, under the action of the elastic force of the elastic connector 31, the heat insulation plate 3 applies an upward pressure to the lifting plate 23. The lifting plate 23 transmits the pressure to the lower extension 212. At this time, the extension direction of the lower extension 212 is parallel to the thickness direction of the fixed plate 1. Therefore, the pressure directly acts on the hinge between the operating lever and the inner plate 12, causing the handle 21 to lock in place. Figure 2 The position shown will not be deflected.

[0059] Of course, to ensure the stability of the handle 21, it is also possible to keep the handle 21 in a certain position. Figure 2 In the state shown, the position of the handle 21 relative to the inner plate 12 is locked by screws or other connecting parts.

[0060] In alternative implementations, such as Figure 4As shown, the side of the heat insulation pressing plate 3 facing the fixing plate 1 is provided with a limiting piece 32, which is used to limit the distance of the heat insulation pressing plate 3 moving towards the fixing plate 1 under the elastic force of the elastic connecting piece 31, so as to achieve the hard limiting of the heat insulation pressing plate 3.

[0061] Specifically, the limiting piece 32 can adopt a block structure and is connected with the heat insulation pressing plate 3 through a screw or the like connecting piece. The side of the limiting piece facing the fixing plate 1 can also be provided with a buffer pad.

[0062] In an optional embodiment, as shown in Figure 4 As shown, the side of the heat insulation pressing plate 3 away from the fixing plate 1 is provided with a pressing block 33 for pressing the product to be measured, and the pressing block 33 is located at the side of the heating plate 4.

[0063] The arrangement of the pressing block 33 can ensure the accurate positioning and pressing of the product to be measured. Specifically, the two sides of the heating plate 4 in the width direction are both designed with the pressing block 33, and the pressing block 33 can press the product to be measured according to the structural characteristics.

[0064] In an optional embodiment, as shown in Figures 5 to 7 As shown, the first elastic piece 5 and the connecting piece 6 are arranged between the heat insulation pressing plate 3 and the heating plate 4. The heating plate 4 is slidably connected with the heat insulation pressing plate 3 through the connecting piece 6 along the thickness direction of the fixing plate 1, and the first elastic piece 5 is configured to apply an elastic force to the heating plate 4 to move away from the fixing plate 1.

[0065] In the above embodiment, the arrangement of the connecting piece 6 can avoid the heating plate 4 from falling off the heat insulation pressing plate 3, and at the same time, provide a space allowing the heating plate 4 to move relative to the heat insulation pressing plate 3. The arrangement of the first elastic piece 5 can ensure that the heating plate 4 always has a certain distance from the heat insulation pressing plate 3 under the condition of not being subjected to external force, so that the heating plate 4 can approach the heat insulation pressing plate 3 after contacting the product to be measured, thereby reducing the pressure applied to the product to be measured.

[0066] Specifically, the connecting piece 6 can be configured as multiple, for example, two, three, four or even more.

[0067] Specifically, the connecting piece 6 can be configured as multiple, for example, two, three, four or even more.

[0068] In a preferred embodiment, the connecting piece 6 is configured as six.

[0069] In addition, the first elastic piece 5 can also be configured as multiple, for example, two, three, four or even more.

[0070] In a preferred embodiment, the first elastic piece 5 is configured as six.

[0071] In an optional embodiment, as shown in Figure 8As shown, the side wall of the heating plate 4 is provided with a first hole position 41 for installing a heating rod and a second hole position 42 for installing a sensor.

[0072] To ensure the uniformity of the test temperature, the first hole position 41 is configured as multiple, and the heat sources in the multiple first hole positions 41 can heat from multiple places, so that the temperature distribution on the heating plate 4 is more uniform. Correspondingly, the second hole position 42 can also be configured as multiple, so as to measure the temperature of multiple points on the heating plate 4.

[0073] In a preferred embodiment, the first hole position 41 is configured as four, and the second hole position 42 is configured as two.

[0074] Among them, the four first hole positions 41 are uniformly distributed on one side of the heating plate 4, one second hole position 42 is distributed between the two first hole positions 41 on the left, and the other second hole position 42 is distributed between the two first hole positions 41 on the right, so that the temperature detected by the sensor can more accurately reflect the actual heating condition of the heating plate 4.

[0075] In an optional embodiment, as shown in the figure, Figure 9 The heating test fixture also includes a front support 7 and a rear support 8, the rear end of the fixed plate 1 is rotatably connected with the rear support 8, and the front end of the fixed plate 1 is detachably connected with the front support 7.

[0076] In the above embodiment, through the rotatable connection between the rear end of the fixed plate 1 and the rear support 8 and the detachable connection between the front end of the fixed plate 1 and the front support 7, the flip type operation of the overall structure can be realized, greatly improving the installation efficiency of the product.

[0077] Specifically, a torsional spring is arranged between the rear end of the fixed plate 1 and the rear support 8, so that after the front end of the fixed plate 1 is disconnected from the front support 7, the fixed plate 1 can be automatically opened, which is more convenient for the user to operate.

[0078] The above detachable connection mode can be various, such as screw connection, clamping, pin connection, etc.

[0079] In an optional embodiment, as shown in the figure, Figure 9 The front end of the fixed plate 1 is detachably connected with the front support 7 through a locking handle 9, the locking handle 9 is rotatably connected with the front end of the fixed plate 1, and a second elastic member is arranged between the locking handle 9 and the fixed plate 1, and the second elastic member is configured to apply a elastic force to the locking handle 9 to make the locking handle 9 clamped on the front support 7.

[0080] In use, the fixed plate 1 can be rotated against the elastic force of the second elastic member, so that the locking handle 9 is aligned with the front support 7, and after alignment, the locking handle 9 is released, and under the elastic force of the second elastic member, the locking handle 9 is clamped to the front support 7, cooperating with the torsion spring between the fixed plate 1 and the rear support 8, so as to ensure the firmness of clamping and avoid the bumping of the cover plate to the product during operation.

[0081] The second elastic member can be a helical spring or a torsion spring, which is arranged between the locking handle 9 and the fixed plate 1.

[0082] In optional embodiments, as shown in Figure 9 The surface of the front support 7 for contacting the fixed plate 1 is provided with an anti-collision pad 71 to buffer the impact force between the front support 7 and the fixed plate 1.

[0083] In addition, the fixed plate 1, the operating mechanism 2, the front support 7 and the rear support 8 can be made of aluminum alloy to improve the safety in use, reduce the overall weight and reduce the overall cost. The heat insulation pressing plate 3 can be made of high-temperature-resistant FR4 material to ensure heat insulation and press the product to avoid crushing the product.

[0084] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A heated test fixture, characterized by, The heating type test fixture comprises a fixed plate (1), an operating mechanism (2), a heat insulation pressing plate (3) and a heating plate (4). The heat insulation pressing plate (3) is slidably connected with the fixed plate (1) along the thickness direction of the fixed plate (1), and the operating mechanism (2) is rotatably connected with the fixed plate (1), and the operating mechanism (2) is used for driving the heat insulation pressing plate (3) to slide towards the direction away from the fixed plate (1). The heating plate (4) is connected with the heat insulation pressing plate (3) and can float relative to the heat insulation pressing plate (3) along the thickness direction of the fixed plate (1).

2. The heated test fixture of claim 1, wherein, The operating mechanism (2) comprises a handle (21), a swing rod (22) and a lifting plate (23), the handle (21) and the swing rod (22) are rotatably connected with the fixed plate (1), the lifting plate (23) is located on the side of the fixed plate (1) facing the heat insulation pressing plate (3) and is rotatably connected with the handle (21) and the swing rod (22), and the lifting plate (23) is used for driving the heat insulation pressing plate (3) to slide towards the direction away from the fixed plate (1).

3. The heated test fixture of claim 2, wherein, The lifting plate (23) has a plurality of pressing wheels (231) for pressing the heat insulation pressing plate (3).

4. The heated test fixture of claim 1, wherein, The heat insulation pressing plate (3) has an elastic connecting piece (31) which is elastically connected with the fixed plate (1) along the thickness direction of the fixed plate (1), and the elastic connecting piece (31) is configured to apply an elastic force to the heat insulation pressing plate (3) to move the heat insulation pressing plate (3) towards the fixed plate (1).

5. The heated test fixture of claim 1, wherein, The side of the heat insulation pressing plate (3) facing the fixed plate (1) is provided with a limiting piece (32) for limiting the distance of the heat insulation pressing plate (3) moving towards the fixed plate (1). The side of the heat insulation pressing plate (3) away from the fixed plate (1) is provided with a pressing block (33) for pressing the product to be tested, and the pressing block (33) is located on the side of the heating plate (4).

6. The heated test fixture of claim 1, wherein, The first elastic piece (5) and the connecting piece (6) are arranged between the heat insulation pressing plate (3) and the heating plate (4), the heating plate (4) is slidably connected with the heat insulation pressing plate (3) along the thickness direction of the fixed plate (1) through the connecting piece (6), and the first elastic piece (5) is configured to apply an elastic force to the heating plate (4) to move the heating plate (4) away from the fixed plate (1).

7. The heated test fixture of claim 1, wherein, The side wall of the heating plate (4) is provided with a first hole (41) for mounting a heating rod and a second hole (42) for mounting a sensor.

8. The heated test fixture of claim 1, wherein, The heating type test fixture further comprises a front support (7) and a rear support (8), the rear end of the fixed plate (1) is rotatably connected with the rear support (8), and the front end of the fixed plate (1) is detachably connected with the front support (7).

9. The heated test fixture of claim 8, wherein, The front end of the fixed plate (1) is detachably connected with the front support (7) through a locking handle (9), the locking handle (9) is rotatably connected with the front end of the fixed plate (1), and a second elastic member is arranged between the locking handle (9) and the fixed plate (1), and the second elastic member is configured to apply an elastic force to the locking handle (9) to enable the locking handle (9) to be clamped in the front support (7).

10. The heated test fixture of claim 8, wherein, The surface of the front support (7) for contacting the fixed plate (1) is provided with a collision pad (71).

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