Rectifying device and aging test equipment

Abstract

The utility model belongs to the technical field of high and low temperature aging test, and discloses a rectifying device and aging test equipment. The rectifying device comprises a rectifying body, at least one wind shielding piece and a fixing structure, a ventilation area is arranged on the rectifying body, and the at least one wind shielding piece is adjustably installed on the rectifying body so as to divide the ventilation area into a static wind area and a sub-ventilation area with the area smaller than that of the ventilation area. The static wind area is formed by overlapping the wind shielding pieces and shielding at least part of the ventilation area, and the fixing structure is used for installing the wind shielding pieces on the rectification body and limiting the movement of the wind shielding pieces relative to the rectification body or releasing the limitation of the movement of the wind shielding pieces relative to the rectification body. The rectifying device can be suitable for air ducts of different aging test devices after being quickly adjusted, and meets the requirements of test environments of board cards with different layer heights and different layer numbers.

Description

Technical Field

[0001] This utility model relates to the field of high and low temperature aging test technology, and in particular to a rectifier and aging test equipment. Background Technology

[0002] Aging testing is a non-destructive technique that uses temperatures above or below normal operating temperature and voltages above normal operating temperature to screen for defective chips. To achieve the high and low temperature testing environment, a temperature control chamber is typically used. This chamber usually uses a heater as the system heat source and an evaporator connected to the refrigerant circuit as the system cold source. A circulating fan drives the airflow within the chamber, and heat exchange within the chamber achieves temperature control.

[0003] To meet the heat dissipation requirements of each test zone, airflow is evenly distributed to each test zone via baffles, preventing inconsistencies in the test environment caused by different levels of heat dissipation between test zones. However, this structure is generally only suitable for a single test bench and cannot be quickly adjusted to meet the testing needs of different circuit boards. A new test bench design is required, which is time-consuming and labor-intensive. Utility Model Content

[0004] The primary objective of this invention is to provide a rectifier that, after rapid adjustment, can be adapted to the air ducts of different aging test equipment and meet the testing environment requirements of different layer heights and number of layers of circuit boards.

[0005] To achieve this objective, the present invention discloses a rectification device, comprising: a rectification body having a ventilation area; at least one wind deflector, wherein the wind deflector is adjustablely mounted on the rectification body to divide the ventilation area into a still air zone and a sub-ventilation zone with an area smaller than the ventilation area, wherein the still air zone is formed by the wind deflector overlapping and obscuring at least a portion of the ventilation area; and a fixing structure for mounting the wind deflector on the rectification body and restricting the movement of the wind deflector relative to the rectification body, or for releasing the restriction on the movement of the wind deflector relative to the rectification body.

[0006] In some embodiments, the wind deflector is provided with an adjustment structure, which is a waist hole. The fixing structure cooperates with the waist hole and can be adjusted relative to the waist hole to adjust the position of the wind deflector relative to the rectifier body.

[0007] In some embodiments, the rectifier body is further provided with a guide groove extending along a first direction; the fixing structure includes a fixing bolt and an abutment threaded onto the fixing bolt, the fixing bolt passes through the guide groove, the abutment is rotated within the guide groove, and the abutment cooperates with the fixing bolt to fix the windshield to the rectifier body.

[0008] In some specific embodiments, the abutment member has an abutment surface on the side facing the head of the fixing bolt, and the guide groove has a mating surface on the side opposite to the abutment surface. Both the abutment surface and the mating surface are toothed surfaces and can mesh with each other.

[0009] In some specific embodiments, the abutment is a rectangular body.

[0010] In some specific embodiments, the fixing structure further includes a gasket, which is clamped between the head of the fixing bolt and the surface of the rectifier body.

[0011] In some specific embodiments, the rectifier body further has a flange located on one side of the ventilation area along a second direction, and the guide groove is disposed on the flange, wherein the second direction is perpendicular to the first direction.

[0012] In some more specific embodiments, the flange is provided with at least one fixing hole through which a fastener passes to secure the rectifier to an external frame.

[0013] In some embodiments, the rectifier body is provided with a sliding groove that extends through the rectifier body, the wind deflector is provided with an adjustment structure, the adjustment structure being an adjustment stud that can rotate relative to the wind deflector, the fixing structure including a locking member, the adjustment stud being slidably fitted into the sliding groove, the locking member cooperating with the adjustment stud to fix the wind deflector to the rectifier body, or to release the restriction on the movement of the wind deflector relative to the rectifier body.

[0014] The second objective of this invention is to provide an aging test device that, through rapid adjustment, can meet the testing environment requirements of boards with different layer heights and number of layers, thereby improving the testing efficiency and compatibility of the aging test device.

[0015] To achieve this purpose, the present invention discloses an aging test device, including a temperature control chamber and at least one rectifier as described above, wherein the rectifier is fixed inside the temperature control chamber.

[0016] The beneficial effects of this utility model are as follows: Because the wind deflector is adjustablely installed on the rectifier body, it divides the ventilation area into a still air zone and a sub-ventilation zone with an area smaller than the ventilation area. The still air zone is formed by the overlapping and partial obstruction of the ventilation area by the wind deflector. In actual operation, simply removing the fixing structure from the wind deflector allows adjustment of its position relative to the rectifier body, thereby adjusting the position of the still air zone relative to the ventilation area, and thus adjusting the position and size of the sub-ventilation zone. After adjustment, simply re-operate the fixing structure to restrict the wind deflector. This utility model's rectifier device, by operating the fixing structure to quickly adjust the position of the wind deflector relative to the rectifier body, is applicable to the air ducts of different aging test equipment and meets the testing environment requirements of different layer heights and number of layers of circuit boards. This enables the aging test equipment to meet the testing environment requirements of different layer heights and number of layers of circuit boards, improving the testing efficiency and compatibility of the aging test equipment.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the windbreak component of the rectifier device in one position according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the windbreak component of the rectifier device in another position according to an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the windbreak component of the rectifier device in another position according to an embodiment of this utility model;

[0021] Figure 4 This is an isometric view of the rectifier device according to Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the rectifier body according to Embodiment 1 of this utility model;

[0023] Figure 6 This is a partial structural cross-sectional view of the rectifier body according to Embodiment 1 of this utility model;

[0024] Figure 7 This is an isometric view of the windshield component according to Embodiment 1 of this utility model;

[0025] Figure 8 This is an isometric view of the fixed structure of Embodiment 1 of this utility model.

[0026] Figure label:

[0027] 100. Rectifier body; 110. Ventilation area; 111. Sub-ventilation area; 120. Flanged edge; 121. Guide groove; 1211. First groove; 1212. Second groove; 1213. Mating surface; 122. Fixing hole;

[0028] 200. Windshield; 210. Adjustment elongated hole;

[0029] 300. Fixed structure; 310. Fixing bolt; 320. Abutting part; 321. Abutting surface; 330. Gasket. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Example 1:

[0034] This utility model discloses a rectifier device, referenced... Figure 4As shown, the rectifier device of this embodiment includes a rectifier body 100, at least one wind deflector 200, and a fixing structure 300. The rectifier body 100 is provided with a ventilation area 110. At least one wind deflector 200 is adjustablely installed on the rectifier body 100 to divide the ventilation area 110 into a calm wind area and a sub-ventilation area 111 with an area smaller than the ventilation area 110. The calm wind area is formed by the wind deflectors 200 overlapping and blocking at least part of the ventilation area 110. The fixing structure 300 is used to install the wind deflector 200 on the rectifier body 100 and restrict the movement of the wind deflector 200 relative to the rectifier body 100, or to release the restriction on the movement of the wind deflector 200 relative to the rectifier body 100. Understandably, since the wind deflector 200 is adjustablely mounted on the rectifier body 100 to divide the ventilation area 110 into a calm wind zone and a sub-ventilation zone 111 with an area smaller than the ventilation area 110, and the calm wind zone is formed by the wind deflector 200 overlapping and obstructing at least part of the ventilation area 110, in actual operation, it is only necessary to release the restriction of the fixing structure 300 on the wind deflector 200 to adjust the position of the wind deflector 200 relative to the rectifier body 100, thereby adjusting the position of the calm wind zone relative to the ventilation area 110, and thus adjusting the position and size of the sub-ventilation zone 111. Figures 1-3 Examples of three different heights and positions of sub-ventilation zones 111 are given. After adjustment, it is only necessary to operate the fixing structure 300 again to restrict the movement of the wind deflector 200. Thus, the rectifier device of this embodiment can be applied to the air ducts of different aging test equipment by operating the fixing structure 300 to quickly adjust the position of the wind deflector 200 relative to the rectifier body 100, and can meet the test environment requirements of different floor heights and different number of layers of boards.

[0035] Optionally, the wind deflector 200 is formed as a rectangular wind deflector.

[0036] refer to Figure 5As shown, the rectifier body 100 is also provided with a guide groove 121 extending along the first direction (the width direction of the rectangular wind deflector); the fixing structure 300 includes a fixing bolt 310 and an abutment 320 threadedly connected to the fixing bolt 310. The fixing bolt 310 passes through the guide groove 121, and the rotation of the abutment 320 is restricted within the guide groove 121. The abutment 320 cooperates with the fixing bolt 310 to fix the wind deflector 200 to the rectifier body 100. Understandably, during the actual adjustment process, loosening the fixing bolt 310 allows the head of the fixing bolt 310 to disengage from the rectifier body 100. At this point, the fixing bolt 310 releases its restriction on the movement of the wind deflector 200. Then, the wind deflector 200 is adjusted so that the abutment 320 slides in the guide groove 121 along the first direction. Since the abutment 320 cannot rotate relative to the guide groove 121, it will not disengage relative to the fixing bolt 310. Furthermore, the sliding of the abutment 320 within the guide groove 121 provides guidance for the movement of the wind deflector 200, preventing it from becoming misaligned and jammed. After adjustment, tightening the fixing bolt 310 ensures that the head of the fixing bolt 310 abuts against the rectifier body 100 again.

[0037] In order to improve the stability of the wind deflector 200 relative to the rectifier body 100, the rectifier body 100 is provided with guide grooves 121 on both sides along the second direction (i.e. the length direction of the rectangular wind deflector). The rectangular wind deflector is engaged with the rectifier body 100 at both ends along its length through two fixing structures 300.

[0038] refer to Figure 5 As shown, the rectifier body 100 also has a flange 120 located on one side of the ventilation area 110 along a second direction, and a guide groove 121 is disposed on the flange 120, with the second direction perpendicular to the first direction. It can be understood that the guide groove 121 is disposed on the flange 120, does not interfere with the ventilation area 110, and can ensure that the wind deflector 200 completely covers the ventilation area 110 in the second direction.

[0039] refer to Figure 5 As shown, the flange 120 is provided with at least one fixing hole 122. A fastener passes through the fixing hole 122 to fix the rectifier to the external frame. It is understood that in actual installation, after the rectifier body 100 is installed in the designated area, the fastener is connected to the external frame through the fixing hole 122 to achieve the installation of the rectifier. This method is convenient and provides good stability. The fastener can be a screw or pin, etc., depending on actual needs. When the fastener is a screw, the fixing hole 122 can be a countersunk hole. A countersunk hole can hide the screw head, preventing scratches to other mechanisms and improving aesthetics. In other embodiments of this utility model, the flange 120 can also be provided with a snap-fit ​​structure to connect to the external frame, and is not limited to the fastener connection method of this embodiment.

[0040] Optional, see reference Figure 8 As shown, the abutment 320 has an abutment surface 321 on the side facing the head of the fixing bolt 310, and the guide groove 121 has a mating surface 1213 on the side opposite to the abutment surface 321. Both the abutment surface 321 and the mating surface 1213 are toothed surfaces and can mesh with each other. It can be understood that during the adjustment of the windshield 200, the abutment 320 will slide within the guide groove 121. The toothed surfaces 321 and 1213 prevent the abutment 320 from rotating within the guide groove 121 during adjustment and also guide the sliding of the windshield 200, preventing it from tilting. The specific tooth shape of the toothed surface can be selected according to actual needs, as long as it ensures that the abutment 320 can slide without rotating.

[0041] Optionally, the abutment 320 is rectangular. Thus, the sidewall of the abutment 320 can abut against the sidewall of the guide groove 121, which on the one hand prevents the abutment 320 from rotating in the guide groove 121 when adjusting the wind deflector 200, and on the other hand, guides the sliding of the wind deflector 200 to prevent it from tilting.

[0042] Of course, in other embodiments of this utility model, the abutment member 320 can be a standard nut, and is not limited to the above-described customized structure.

[0043] Optional, such as Figure 6 As shown, the guide groove 121 is a blind groove and includes a first groove 1211 and a second groove 1212. The second groove 1212 is larger than the first groove 1211 and is located in the middle of the first groove 1211. The abutment 320 is installed in the second groove 1212, and the fixing bolt 310 passes through the first groove 1211. The first groove 1211 has an end that accommodates the fixing bolt 310 when it rotates, thus creating a clearance for the fixing bolt 310. It can be understood that confining the abutment 320 within the second groove 1212 can prevent the abutment 320 from accidentally falling out of the guide groove 121 during transportation and handling.

[0044] Optional, such as Figure 7 As shown, the windshield 200 is provided with an adjustment elongated hole 210 through which the fixing bolt 310 passes. The position of the windshield 200 can be finely adjusted by adjusting the position of the fixing bolt 310 within the adjustment elongated hole 210. This fine adjustment is beneficial for precise adjustment of the position of the windshield 200 within a small range. At the same time, it eliminates the limitation of the single movement amount caused by the toothed surface mating of the abutment surface 321 and the mating surface 1213, which is limited by the tooth size in the toothed surface, thereby increasing the adjustable range of the windshield 200 on the guide groove 121.

[0045] Optional, such as Figure 8 As shown, the fixing structure 300 also includes a gasket 330, which is clamped between the head of the fixing bolt 310 and the surface of the rectifier body 100. It is understood that the added gasket 330 can prevent hard friction between the head of the fixing bolt 310 and the surface of the rectifier body 100 when adjusting the wind deflector 200, thus avoiding scratches and dust shedding on the surface of the rectifier body 100. This also prevents the falling dust from adversely affecting the aging test during subsequent testing. The gasket 330 can be a rubber gasket, but other materials and signal-specific gaskets can also be selected according to actual needs.

[0046] Example 2:

[0047] The rectifier in this embodiment is largely the same as that in Embodiment 1, except that the wind deflector 200 in this embodiment has an adjustment structure, which is a waist hole. A fixing structure 300 engages with the waist hole, allowing the fixing structure 300 to be adjusted relative to the waist hole to adjust the position of the wind deflector 200 relative to the rectifier body 100. The rectifier body 100 has an adjustment hole. The fixing structure 300 is a bolt, which passes through the waist hole and is threaded into the adjustment hole. When the wind deflector 200 needs adjustment, the bolt can be loosened, its position within the waist hole adjusted, and then tightened when the desired position is reached. The length of the waist hole can be set according to the actual required adjustment range. It should be noted that if the length of the waist hole cannot meet a large adjustment range, multiple adjustment holes can be provided on the rectifier body 100. When the required adjustment range of the wind deflector 200 is particularly large, the bolt can be removed from the currently engaged adjustment hole, allowing the wind deflector 200 to be removed from the rectifier body 100 and installed in the desired position as needed.

[0048] Example 3:

[0049] The rectifier in this embodiment is largely the same as that in Embodiment 1, except that the rectifier body 100 has a sliding groove that extends through it. The wind deflector 200 has an adjustment structure, which is an adjusting stud that can rotate relative to the wind deflector 200. The fixing structure 300 includes a locking member. The adjusting stud is slidably fitted into the sliding groove. The locking member cooperates with the adjusting stud to fix the wind deflector 200 to the rectifier body 100, or to release the restriction on the movement of the wind deflector 200 relative to the rectifier body 100. It can be understood that when the wind deflector 200 needs to be adjusted, first loosen the locking member to release the restriction on the movement of the wind deflector 200 relative to the rectifier body 100, then push the wind deflector 200 to move, causing the adjusting stud to slide in the sliding groove. When the wind deflector 200 moves to the designated position, tighten the locking member to fix the wind deflector 200. In addition, since the adjusting stud can rotate relative to the windshield 200, it can also rotate relative to the windshield 200 when it slides in the sliding groove. The adjusting stud acts as a guide wheel in the process of adjusting the windshield 200, ensuring that the windshield 200 can be adjusted stably.

[0050] Optionally, the locking element can be a standard nut, or a specially designed abutment 320 as described in Embodiment 1 can be used as the locking element.

[0051] Optionally, the wind deflector 200 is provided with a mounting hole, and a bearing is installed in the mounting hole. The adjusting stud is installed in the bearing. Thus, the adjusting stud can rotate relative to the wind deflector 200, but it cannot move along its own axis. During the adjustment process, the wind deflector 200 may move along its own axis with the adjusting stud, causing it to fall off the wind deflector 200.

[0052] This utility model discloses an aging test device, including a temperature control chamber and at least one rectifier as described in any of the embodiments one to three above. It should be further noted that the aging test device also includes a test chamber, a test air duct, a support frame, and a circulating fan. The two ends of the test air duct are respectively connected to the two sides of the test chamber, and the circulating fan is installed inside the test air duct to form circulating air within the test chamber and the test air duct. Along the direction of the circulating air, an air inlet side and an air outlet side are respectively formed at the two ends where the test chamber connects to the circulating air duct. The support frame is used to support the aging board and is installed inside the test chamber. The aforementioned rectifier is installed inside the circulating air duct and located at the end of the circulating air duct near the air inlet side.

[0053] During the testing process of the aging test equipment in this embodiment, the position of the wind deflector 200 relative to the rectifier body 100 can be adjusted so that the ventilation area 110 of the rectifier device is divided into a still air area and a sub-ventilation area 111 with an area smaller than the ventilation area 110. The circulating air can pass through the sub-ventilation area 111 and enter the test chamber to perform aging tests on the aging board. When the height of the support frame changes or the specifications of the aging board change, it is only necessary to adjust the position of the wind deflector 200 so that the self-ventilation area is aligned with the support frame and the aging board.

[0054] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rectifier, characterized in that, include: A rectifier body (100) is provided with a ventilation area (110); At least one wind deflector (200) is adjustablely mounted on the rectifier body (100) to divide the ventilation area (110) into a calm zone and a sub-ventilation area (111) with an area smaller than the ventilation area (110), the calm zone being formed by the wind deflector (200) overlapping and obscuring at least a portion of the ventilation area (110); A fixing structure (300) is used to mount the wind deflector (200) to the rectifier body (100) and restrict the movement of the wind deflector (200) relative to the rectifier body (100), or to release the restriction on the movement of the wind deflector (200) relative to the rectifier body (100).

2. The rectifier according to claim 1, characterized in that, The wind deflector (200) is provided with an adjustment structure, which is a waist hole. The fixing structure (300) cooperates with the waist hole. The fixing structure (300) can be adjusted relative to the waist hole to adjust the position of the wind deflector (200) relative to the rectifier body (100).

3. The rectifier according to claim 1, characterized in that, The rectifier body (100) is further provided with a guide groove (121) extending along a first direction; the fixing structure (300) includes a fixing bolt (310) and an abutment (320) threaded onto the fixing bolt (310). The fixing bolt (310) passes through the guide groove (121), and the abutment (320) is restricted to rotation within the guide groove (121). The abutment (320) cooperates with the fixing bolt (310) to fix the windshield (200) to the rectifier body (100).

4. The rectifier according to claim 3, characterized in that, The abutment (320) has an abutment surface (321) on the side facing the head of the fixing bolt (310), and the guide groove (121) has a mating surface (1213) on the side opposite to the abutment surface (321). Both the abutment surface (321) and the mating surface (1213) are toothed surfaces and can mesh with each other.

5. The rectifier according to claim 3, characterized in that, The abutment (320) is a rectangular body.

6. The rectifier according to claim 3, characterized in that, The fixing structure (300) also includes a gasket (330), which is clamped between the head of the fixing bolt (310) and the surface of the rectifier body (100).

7. The rectifier according to any one of claims 3-6, characterized in that, The rectifier body (100) also has a flange (120) located on one side of the ventilation area (110) along a second direction, and the guide groove (121) is disposed on the flange (120), the second direction being perpendicular to the first direction.

8. The rectifier according to claim 7, characterized in that, The flange (120) is provided with at least one fixing hole (122), and the fixing member passes through the fixing hole (122) to fix the rectifier to the external frame.

9. The rectifier according to claim 1, characterized in that, The rectifier body (100) is provided with a sliding groove that extends through the rectifier body (100). The wind deflector (200) is provided with an adjustment structure, which is an adjustment stud that can rotate relative to the wind deflector (200). The fixing structure (300) includes a locking member. The adjustment stud is slidably fitted in the sliding groove. The locking member cooperates with the adjustment stud to fix the wind deflector (200) to the rectifier body (100) or to release the restriction on the movement of the wind deflector (200) relative to the rectifier body (100).

10. An aging test device, characterized in that, It includes a temperature control box and at least one rectifier as described in any one of claims 1-9, wherein the rectifier is fixed inside the temperature control box.

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