Support for testing DC-DC power supply module

Abstract

The utility model discloses a support for DC-DC power supply module testing, and relates to the technical field of DC-DC power supply module testing. According to the bracket for testing the DC-DC power supply module, the expansion piece is arranged, a test power supply can quickly enter a preset position by utilizing the combination of the guide rod and the arc rod B, the connecting block and the arc rod A are arranged to be convex, and the test power supply can be pushed to move towards a preset direction in the downward movement process of the test power supply; then the sleeve B and the sleeve A which are fixedly connected to the bottom can extend to the proper length and width, manual adjustment is not needed, the positioning rod and the sleeve A are combined for use, the adjusting piece is arranged on the outer wall of the aluminum alloy plate, the sleeve A can quickly move to the proper position, and then the guide block can play a limiting role; and the adjusted telescopic rod cannot move, so that the telescopic rod can be automatically locked, and the adjusted telescopic rod cannot freely extend and retract.

Description

TECHNICAL FIELD

[0001] The utility model relates to DC-DC power module test technical field, specifically a DC-DC power module test is with support. BACKGROUND

[0002] The modular power supply device is widely applied because of easy production and installation, wherein the DC-DC power module is an important component of the modular power supply, and its role is to convert the DC power supply with relatively high voltage into the DC power supply with relatively low voltage that can be directly used by electronic equipment, so the DC-DC power module is very common in products such as electric vehicles, and the DC-DC power module must be tested before being put into use, and can be installed into the vehicle interior after being determined to be qualified, and the DC-DC power module needs to be placed and transported stably during the testing process, so the support is needed for placing the DC-DC power module.

[0003] According to the DC-DC power module test support disclosed in Chinese utility model patent CN219625561U, four universal wheels are arranged, the top end of each of the two universal wheels on the front side is fixedly connected with a first connecting block, a limiting groove is arranged in the first connecting block, a pull rod is slidably connected in the limiting groove, a spring is arranged outside the pull rod, a limiting block is fixedly connected to the bottom end of the spring, a clamping groove is arranged at the bottom end of the first connecting block, a second connecting block is arranged at the rear end of the first connecting block, a clamping block is fixedly connected to the front end of the second connecting block, a plurality of through holes are arranged in the clamping block, the front end of the first connecting block is fixedly connected with the rear end of a first connecting plate, a first connecting groove is arranged in the first connecting plate, a threaded rod is threadedly connected in the first connecting groove, a second connecting plate is arranged on the side of each of the first connecting plates, a second connecting groove is arranged in the second connecting plate, and a bolt is threadedly connected in each of the second connecting plates, so that the support can adjust the length and width through the cooperation of the spring, the limiting block, the clamping groove, the clamping block, the threaded rod, the first connecting groove, the second connecting groove and the through holes, so as to adapt to different models of power modules, and the use range is improved, and the practicality is high.

[0004] The above-mentioned patent needs to be adjusted manually during the size adjustment, and is fixed by the threaded rod after the adjustment, and this fixing method needs to be installed manually, which will consume a lot of time for adjustment and limiting during the testing process, and thus the problem of low work efficiency will be caused. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of support for DC-DC power module test, solve the adjustment after being fixed by threaded rod, and this kind of fixed mode all need to be installed artificially, which makes the process of testing will consume a lot of time to adjust and limit, thus it will cause the problem of work efficiency decline.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of support for DC-DC power module test, including moving wheel and top rod, the top of the moving wheel is fixedly installed with top rod, the top of the top rod is fixedly installed with unfolding piece;The inside of the unfolding piece includes sleeve B, connecting rod B, positioning rod, sleeve A, connecting rod A, the top of the top rod and the junction of sleeve B and sleeve A are fixedly connected, connecting rod B is movably sleeved in the inside of sleeve B, connecting rod A is movably sleeved in the inside of sleeve A, positioning rod is movably installed in the inside of sleeve B and sleeve A, sleeve B is two groups, and two groups of sleeve B are parallel to each other, the two groups of sleeve B, two are a group, and the number is four, and two two symmetries, sleeve A is two groups, and two groups of sleeve A are parallel to each other, the two groups of sleeve A two are a group, and the number is four, and two two symmetries, four expansion pieces are fixed on the upper ring of the unfolding piece;The expansion piece includes support rod, arc rod A, connecting block, arc rod B, roller, guide rod, the bottom of the support rod is fixedly connected to unfolding piece, the top of the support rod is fixedly connected arc rod A, the top of the arc rod A is fixedly connected connecting block, the top of the connecting block is fixedly connected arc rod B, the top of the arc rod B is fixedly connected guide rod, the inside of the guide rod is movably installed with roller.

[0007] Preferably, the inside of sleeve B and sleeve A includes pipe groove A, screw port A, limit port A, screw port B, pipe groove B, limit port B, pipe groove A is formed in the inside of sleeve B, limit port A is formed in the outer wall of sleeve B, screw port A is arranged on the side surface of limit port A, screw port A is located in the inside of pipe groove A, pipe groove B is formed in the inside of sleeve A, limit port B is formed in the outer wall of sleeve A, screw port B is arranged on the side surface of limit port B, screw port B is located in the inside of pipe groove B;Spring D in the direction of limit port A and limit port B is fixed at the junction of pipe groove A and pipe groove B respectively.

[0008] Preferably, limit port A and limit port B movably sleeve telescopic rod in the inside, positioning groove is formed in the inside of telescopic rod, connecting rod B is fixedly connected to the outer wall of telescopic rod, clamping block is fixedly connected on both sides in the inside of positioning groove, connecting rod B is fixedly connected at both ends of telescopic rod, limit sleeve plate is fixedly connected to the outer wall of telescopic rod, limit sleeve plate is located in the inside of pipe groove A and pipe groove B, limit sleeve plate is fixedly connected with one end of spring D, reset of unfolding piece is realized through the setting of spring D.

[0009] Preferably, one side of the card block is provided with a bottom opening face A, the top of the face A is connected with a face B, and the top of the face B is connected with a face C.

[0010] Preferably, the inside of the positioning rod comprises an anti-skid plate, an external thread cylinder, a moving rod, a spring A, an aluminum alloy plate, an opening, a spring B, a side fillet, the bottom of the positioning rod movably sheaths the external thread cylinder, the inside of the external thread cylinder movably sheaths the spring A, the inside of the spring A winds the moving rod, the top of the moving rod is fixedly connected with a connecting rod A, the bottom of the moving rod is fixedly connected with the aluminum alloy plate, the inside of the aluminum alloy plate is provided with the opening, the inside of the opening is fixedly connected with the spring B, the bottom of both ends of the aluminum alloy plate is provided with the side fillet, and the outer wall of both ends of the aluminum alloy plate movably installs an adjusting piece.

[0011] Preferably, the inside of the adjusting piece comprises a cambered surface, a guide block, a telescopic sleeve, a stabilizing rod, a spring C, the outer wall of the guide block is fixedly connected with the telescopic sleeve, the inside of the telescopic sleeve movably sheaths the stabilizing rod, the inside of both ends of the aluminum alloy plate is provided with a mouth matched with the guide block, the bottom of the inner cavity of the mouth is fixedly connected with the stabilizing rod, and the surface of the guide block is provided with the cambered surface.

[0012] Preferably, the arc rod A and the arc rod B are in the shape of a circular arc, the diameter ranges from 40 to 50 cm, the positions of the arc rod A and the arc rod B are opposite, and the rollers are in the shape of an inclined upward.

[0013] Preferably, the face B is in the shape of a circular arc, the radius is 3-4 cm, and the connecting positions of the face B with the face C and the face A are all in the shape of a fillet.

[0014] Preferably, the bottom of the supporting rod is fixedly connected with the top of the sleeve A and the top of the sleeve B.

[0015] Preferably, the bottom of the supporting rod is fixedly connected with the top of the connecting rod B and the top of the connecting rod A close to the outer side edge.

[0016] The utility model provides a kind of DC-DC power module test support. Compared with prior art, it has the following beneficial effects:

[0017] 1. The DC-DC power module test support, by setting the expansion piece, the guide rod and the arc rod B combination can quickly enter the preset position, the connecting block and the arc rod A are set to protruding, during the downward movement of the test power supply, the spring D can be overcome to push it to move in the preset direction, and then the sleeve B and the sleeve A fixedly connected at the bottom can be extended to the appropriate length and width without manual adjustment.

[0018] 2、The DC-DC power module test support, through the combination of positioning rod and sleeve A, the outer wall of the aluminum alloy plate is provided with adjusting parts, the sleeve A can be quickly moved to the appropriate position, then the guiding block can limit the movement of the adjusting telescopic rod, and the telescopic rod can be locked, so that the telescopic rod cannot be freely extended and retracted.

[0019] 3、The DC-DC power module test support, through the combination of face B, face A and face C, the bottom of the clamping block is rounded, the aluminum alloy plate can be quickly pulled out from the inside of the positioning groove, and the subsequent positioning and use are facilitated. DETAILED DESCRIPTION

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model connecting rod;

[0022] Figure 3 It is a structural schematic diagram of the utility model positioning rod bottom;

[0023] Figure 4 It is a structural schematic diagram of the utility model sleeve inside view;

[0024] Figure 5 It is a structural schematic diagram of the utility model clamping block side;

[0025] Figure 6 It is a structural schematic diagram of the utility model adjusting part inside;

[0026] Figure 7 It is a structural schematic diagram of the utility model guiding rod to another arrangement of support rod.

[0027] In the figure: 1, mobile wheel; 2, top rod; 3, sleeve A; 4, connecting rod A; 5, sleeve B; 6, connecting rod B; 7, positioning rod; 8, guide rod; 9, unfolding piece; 10, support rod; 11, arc rod A; 12, connecting block; 13, arc rod B; 14, roller; 301, pipe groove B; 302, screw port B; 303, limiting port B; 501, pipe groove A; 502, screw port A; 503, limiting port A; 504, spring D; 601, telescopic rod; 602, positioning groove; 603, clamping block; 604, limiting sleeve plate; 701, anti-skid plate; 702, external thread cylinder; 703, moving rod; 704, spring A; 706, aluminum alloy plate; 707, opening; 708, spring B; 709, side round corner; 710, adjusting piece; 7102, guide block; 7101, camber surface; 7103, telescopic sleeve; 7104, stabilizing rod; 7105, spring C; 6031, face A; 6032, face B; 6033, face C. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model are clearly and completely described, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0029] Please refer to Figures 1-6The utility model discloses an embodiment provides a technical scheme: a kind of DC-DC power module test support, including moving wheel 1 and top rod 2, the top of moving wheel 1 is fixedly installed with top rod 2, and the setting of moving wheel 1 realizes the transfer of power module, the top of top rod 2 is fixedly installed with unfolding piece 9;The inside of unfolding piece 9 includes sleeve B5, connecting rod B6, positioning rod 7, sleeve A3, connecting rod A4, the top of top rod 2 and the junction of sleeve B5 and sleeve A3 are fixedly connected, the inside of sleeve B5 movably sleeve connecting rod B6, the inside of sleeve A3 movably sleeve connecting rod A4, the inside of sleeve B5 and sleeve A3 is movably installed positioning rod 7, sleeve B5 is two groups, and two groups of sleeve B5 are parallel to each other, two groups of sleeve B5, two are a group, and the number is four, and two two symmetries, sleeve A3 is two groups, and two groups of sleeve A3 are parallel to each other, two groups of sleeve A3 two are a group, and the number is four, and two two symmetries, the top of four sleeve B5 and sleeve A3 is fixedly connected with expansion piece;Expansion piece includes support rod 10, arc rod A11, connecting block 12, arc rod B13, gyro wheel 14, guide rod 8, support rod 10 bottom and unfolding piece 9 are fixedly connected, the top of support rod 10 is fixedly connected arc rod A11, the top of arc rod A11 is fixedly connected connecting block 12, the top of connecting block 12 is fixedly connected arc rod B13, the top of arc rod B13 is fixedly connected guide rod 8, the inside of guide rod 8 movably installs gyro wheel 14, arc rod A11 and arc rod B13 are circular arc, and diameter range is forty to fifty centimeters, and the position of arc rod A11 and arc rod B13 is opposite, gyro wheel 14 is obliquely upwards, the inside of sleeve B5 and sleeve A3 includes pipe groove A501, screw A502, limit port A503, screw B302, pipe groove B301, limit port B303, pipe groove A501 is set in the inside of sleeve B5, limit port A503 is set on the outer wall of sleeve B5, screw A502 is set on the side of limit port A503, screw A502 is located in the inside of pipe groove A501, pipe groove B301 is set in the inside of sleeve A3, limit port B303 is set on the outer wall of sleeve A3, screw B302 is set on the side of limit port B303, screw B302 is located in the inside of pipe groove B301, the pipe groove A501 and pipe groove B intersection are respectively fixed with spring D504 towards two directions of limit port A503 and limit port B303;Limit port A503 and limit port B303 movably sleeve telescopic rod 601, the outer wall of telescopic rod 601 is fixedly connected connecting rod B6, telescopic rod 601 is provided with positioning groove 602 in the inside, the inside both sides of positioning groove 602 are fixedly connected clamping block 603, both ends of connecting rod B6 are fixedly connected telescopic rod 601, the outer wall of telescopic rod 601 is fixedly connected limit sleeve plate 604, and limit sleeve plate 604 is located in the inside of pipe groove A501 and pipe groove B301, and one end of limit sleeve plate 604 is fixedly connected with spring D504.The bottom side of the locking block 603 has a surface A6031, the top of surface A6031 is connected to surface B6032, and the top of surface B6032 is connected to surface C6033. The spring D504 is used for the reset of the reset sleeves A3 and B5.

[0030] like Figure 1 As shown in the embodiment of this utility model, the bottom of the support rod 10 and the junction of the top of the sleeve A3 and the sleeve B5 are fixedly connected. The above structure is suitable for square power modules, and the power modules are placed in a diamond shape and sunk.

[0031] like Figure 7 As shown, in another embodiment of the present invention, the bottom of the support rod 10 and the top of the connecting rod B6 and the connecting rod A4 are fixedly connected near the outer edge. The above structure is applicable to rectangular power modules.

[0032] In this embodiment, by setting an expansion member, the power module can be vertically placed on top of the roller 14 during operation and lowered so that the power module will move from the top of the guide rod 8 to the bottom of the support rod 10. During the movement, multiple sleeves B5 and sleeve A3 fixedly connected to the bottom of the support rod 10 will expand, so that its length and width can be expanded to a suitable distance. This can avoid the need for workers to adjust it, thereby improving work efficiency. It should be noted that the structure of the connecting rod A4 is the same as the structure of the connecting rod B6.

[0033] Specific, the inside of the positioning rod 7 includes the anti-skid plate 701, the external thread cylinder 702, the moving rod 703, the spring A 704, the aluminum alloy plate 706, the opening 707, the spring B 708, the side fillet 709, the bottom of the positioning rod 7 movably sleeves the external thread cylinder 702, the inside of the external thread cylinder 702 movably sleeves the spring A 704, the inside of the spring A 704 winds the moving rod 703, the top of the moving rod 703 is fixedly connected with the positioning rod 7, the bottom of the moving rod 703 is fixedly connected with the aluminum alloy plate 706, the inside of the aluminum alloy plate 706 is provided with the opening 707, the inside of the opening 707 is fixedly connected with the spring B 708, the setting of the opening 707 and the spring B 708 avoids the jamming of the aluminum alloy plate when it is lowered, the bottom of the two ends of the aluminum alloy plate 706 is provided with the side fillet 709, the outer wall of the two ends of the aluminum alloy plate 706 movably installs the adjusting piece 710, the inside of the adjusting piece 710 includes the curved surface 7101, the guide block 7102, the telescopic sleeve 7103, the stable rod 7104, the spring C 7105, the outer wall of the guide block 7102 is fixedly connected with the telescopic sleeve 7103, the inside of the telescopic sleeve 7103 movably sleeves the stable rod 7104, the inside of the two ends of the aluminum alloy plate 706 is provided with the mouth matched with the guide block 7102, the bottom of the inner cavity of the mouth is fixedly connected with the stable rod 7104, the surface of the guide block 7102 is provided with the curved surface 7101, the surface B 6032 is arc-shaped, the radius is three to four centimeters, the connection places of the surface B 6032 with the surface C 6033 and the surface A 6031 are all round angles, which can well realize the transition.

[0034] In the embodiment, when the test power module is placed on the top of the positioning rod 7, the aluminum alloy plate 706 fixedly connected at the bottom extends into the inside of the positioning groove 602 and is mutually attached with the outer wall of the clamping block 603 fixedly connected at the side, in the process of attachment, the outer wall of the clamping block 603 is mutually attached with the outer wall of the adjusting piece 710, thereby forming a limit, avoiding the sliding in the working process, which makes the adjusted sleeve B 5 and sleeve A 3 not continue to unfold in the moving process, causing the power module to fall on the ground surface. Therefore, the positioning of the DC-DC power module can be improved.

[0035] Working principle;

[0036] Preparation step; first, the outer wall of the external thread cylinder 702 and the screw hole A 502 are threadedly connected with the inside of the screw hole B 302, the power module is vertically placed on the top of the guide rod 8, and then it is slowly lowered.

[0037] Self-adjusting step; in the process of slowly down, the inside movable installed roller 14 of the guide rod 8 will be in friction connection with the power supply test module, in the process of connection, the roller 14 will rotate, which causes the friction to be reduced in the process of rotation, so that it can quickly move from the surface of the guide rod 8 to the surface of the connecting block 12, because the arc rod B13 and the roller 14 are in an expanded state, so they can adapt to power modules of different sizes, and because the connecting part of the connecting block 12 and the arc rod A11 is arc-shaped, so it can form a fillet, so the resistance formed at this time is smaller, which can make the power module continue to move downward, so that the power supply test module can contact the outer wall of the arc rod A11, and the arc rod A11 is convex, which causes the space to be smaller in the process of the power module contacting it, which will form a four-sided thrust force on the four guide rods 8 to overcome the spring D504, at which time the four groups of sleeve A3 and sleeve B5 fixedly connected at the bottom of the supporting rod 10 will extend the inside movably sleeved telescopic rod 601, which makes the length and width of the four groups of sleeve A3 and sleeve B5 will be extended, when the above mechanism extends to the appropriate length and width, the test power supply will continue to move downward, so that it can be in close contact with the outer wall of the supporting rod 10, so as to automatically adjust the width and length.

[0038] When the test power supply and the outer wall of the anti-skid plate 701 are in contact with each other, the positioning rod 7 fixedly connected to the bottom of the anti-skid plate 701 extends downward, and the movement rod 703 fixedly connected to the bottom of the positioning rod 7 extends out of the inner part of the outer threaded cylinder 702. When extending, the bottom of the positioning rod 7 extrudes the top of the movement rod 703, and the aluminum alloy plate 706 fixedly connected to the bottom of the outer threaded cylinder 702 extends to the two sides of the inner wall of the positioning groove 602. When continuing to extend downward, because the two sides of the bottom of the aluminum alloy plate 706 are side fillets 709, the aluminum alloy plate 706 quickly enters the inner part of the positioning groove 602 at this time, and the clamping block 603 fixedly connected to the inner part of the positioning groove 602 is in frictional connection with the guide block 7102 movably installed on the two sides of the aluminum alloy plate 706. Because the curved surface 7101 is downward, the clamping block 603 moves upward along the curved surface 7101, and the guide block 7102 is subjected to a pushing force during the movement, so that the telescopic sleeve 7103 fixedly connected to the outer wall of the guide block 7102 moves along the top of the stable rod 7104 to the end thereof. During the movement, the spring C 7105 movably sleeved to the outer wall of the stable rod 7104 is subjected to extrusion, which enables the clamping block 603 to quickly pass through the guide block 7102 and move to the surface of the next guide block 7102. When moving to the surface of the next guide block 7102, the extrusion force of the last spring C 7105 disappears, so that the spring C 7105 is reset to restore the telescopic sleeve 7103 and the guide block 7102 to the original state. Through the clamping of the guide block 7102 side surface and the clamping block 603, the adjusted telescopic rod 601 continues to maintain the present state and cannot continue to extend or contract. When the power supply module is removed after the test is completed, the extrusion force of the positioning rod 7 disappears, and the spring A 704 is reset to pull the movement rod 703 upward. Similarly, the aluminum alloy plate 706 fixedly connected to the bottom also moves upward. Because the bottom of the clamping block 603 is provided with the surface B 6032, the surface A 6031 and the surface C 6033, and the surface B 6032 are combined into a fillet. During the pulling-out process of the aluminum alloy plate 706, the guide block 7012 can quickly pass through the surface of the clamping block 603, thereby releasing the limiting. The unfolding part 9 returns to the unfolded state under the action of the spring D 504, and waits for the next use.

[0039] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0040] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A test bracket for a DC-DC power module, comprising a movable wheel (1) and a top rod (2), wherein the top rod (2) is fixedly mounted on the top of the movable wheel (1), characterized in that: The top of the top rod (2) is fixedly installed with an unfolding component (9); The interior of the unfolding component (9) includes a sleeve B (5), a connecting rod B (6), a positioning rod (7), a sleeve A (3), and a connecting rod A (4). The top of the top rod (2) is fixedly connected to the junction of the sleeve B (5) and the sleeve A (3). The sleeve B (5) is movably connected to the connecting rod B (6). The sleeve A (3) is movably connected to the connecting rod A (4). The positioning rod (7) is movably installed inside both the sleeve B (5) and the sleeve A (3). There are two sets of sleeves B (5), and the two sets of sleeves B (5) are parallel to each other. The two sets of sleeves B (5) are two in a group, and the number is four. They are symmetrical in pairs. There are two sets of sleeves A (3), and the two sets of sleeves A (3) are parallel to each other. The two sets of sleeves A (3) are two in a group, and the number is four. They are symmetrical in pairs. Four expansion members are fixedly arranged around the top of the unfolding component (9). The expansion member includes a support rod (10), an arc rod A (11), a connecting block (12), an arc rod B (13), a roller (14), and a guide rod (8). The bottom of the support rod (10) is fixedly connected to the top of the expansion member (9). The top of the support rod (10) is fixedly connected to the arc rod A (11). The top of the arc rod A (11) is fixedly connected to the connecting block (12). The top of the connecting block (12) is fixedly connected to the arc rod B (13). The top of the arc rod B (13) is fixedly connected to the guide rod (8). The roller (14) is movably installed inside the guide rod (8).

2. The DC-DC power module testing bracket according to claim 1, characterized in that: The interior of sleeve B (5) and sleeve A (3) includes a groove A (501), a threaded port A (502), a limiting port A (503), and a threaded port B (302). The groove A (501) is formed inside the sleeve B (5), and the limiting port A (503) is formed on the outer wall of the sleeve B (5). The threaded port A (502) is provided on the side of the limiting port A (503). The threaded port A (502) is located in the groove A. Inside (501), a tube groove B (301) is opened inside the sleeve A (3), a limiting port B (303) is opened on the outer wall of the sleeve A (3), and a threaded port B (302) is provided on the side of the limiting port B (303). The threaded port B (302) is located inside the tube groove B (301); springs D (504) are fixed at the junction of the tube groove A (501) and the tube groove B, respectively, facing the limiting port A (503) and the limiting port B (303).

3. The DC-DC power module testing bracket according to claim 2, characterized in that: The telescopic rod (601) is movably connected inside the limiting port A (503) and the limiting port B (303). The outer wall of the telescopic rod (601) is fixedly connected to the connecting rod B (6). The telescopic rod (601) has a positioning groove (602) inside. Both sides of the positioning groove (602) are fixedly connected to the locking block (603). Both ends of the connecting rod B (6) are fixedly connected to the telescopic rod (601). The outer wall of the telescopic rod (601) is fixedly connected to the limiting sleeve plate (604). The limiting sleeve plate (604) is located inside the pipe groove A (501) and the pipe groove B (301). The limiting sleeve plate (604) is fixedly connected to one end of the spring D (504).

4. A test bracket for a DC-DC power module according to claim 3, characterized in that: The card block (603) has a bottom surface A (6031) on one side, a top surface B (6032) connected to the top surface A (6031), and a top surface C (6033) connected to the top surface B (6032).

5. A test bracket for a DC-DC power module according to claim 1, characterized in that: The positioning rod (7) includes an anti-slip plate (701), an external threaded cylinder (702), a moving rod (703), a spring A (704), an aluminum alloy plate (706), an opening (707), a spring B (708), and a side fillet (709). The bottom of the positioning rod (7) is movably fitted with the external threaded cylinder (702), and the inside of the external threaded cylinder (702) is movably fitted with the spring A (704). The moving rod (703) is wound around the inner side of the spring A (704). 3) The top of the moving rod (703) is fixedly connected to the positioning rod (7), the bottom of the moving rod (703) is fixedly connected to the aluminum alloy plate (706), the aluminum alloy plate (706) has an opening (707) inside, the opening (707) is fixedly connected to the inside of the opening (707), the bottom of both ends of the aluminum alloy plate (706) has a side rounded corner (709), and the outer walls of both ends of the aluminum alloy plate (706) are movably installed with adjusting parts (710).

6. A test bracket for a DC-DC power module according to claim 5, characterized in that: The interior of the adjusting component (710) includes an arc surface (7101), a guide block (7102), a telescopic sleeve (7103), a stabilizing rod (7104), and a spring C (7105). The telescopic sleeve (7103) is fixedly connected to the outer wall of the guide block (7102), and the stabilizing rod (7104) is movably sleeved inside the telescopic sleeve (7103). Both ends of the aluminum alloy plate (706) have openings that are adapted to the guide block (7102). The stabilizing rod (7104) is fixedly connected to the bottom of the inner cavity of the opening. The surface of the guide block (7102) is provided with an arc surface (7101).

7. A test bracket for a DC-DC power module according to claim 1, characterized in that: The arc rods A (11) and B (13) are arc-shaped with a diameter ranging from forty to fifty centimeters, and the positions of the arc rods A (11) and B (13) are opposite. The roller (14) is obliquely upward.

8. A test bracket for a DC-DC power module according to claim 4, characterized in that: The surface B (6032) is arc-shaped with a radius of three to four centimeters, and the connection between the surface B (6032) and the surfaces C (6033) and A (6031) is rounded.

9. A test bracket for a DC-DC power module according to claim 1, characterized in that: The bottom of the support rod (10) and the top of the sleeve A (3) and sleeve B (5) are fixedly connected.

10. A test bracket for a DC-DC power module according to claim 1, characterized in that: The bottom of the support rod (10) and the top of the connecting rod A (4) and connecting rod B (6) are fixedly connected near the outer edge.

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