A common mode ripple injection test device

Abstract

The utility model discloses a common mode ripple injection testing arrangement relates to common mode ripple injection test technical field, including test mechanism, including testing machine, the testing machine surface is established with the slide groove and the positioning hole respectively, and is located its both sides, and, place support mechanism, install in the testing machine surface, including the placement platform, the placement platform and testing machine surface are provided with the positioning part, the placement platform surface is installed with fixed part, the placement platform bottom is provided with the drive part, the placement platform bottom fixedly connected with the handle, the positioning part includes the casing, the casing fixedly connected in the placement platform surface. The utility model discloses through placing support mechanism can be convenient for to the control handle support when used the placement frame height of adjustment, and to control handle fixed, not depending on both sides screw fixed placement frame, when adjusting need not repeatedly dismouting screw, time -consuming is short, and easy because of operation, will not happen the case of frame body inclination.

Description

Technical Field

[0001] This utility model relates to the field of common mode ripple injection testing technology, and in particular to a common mode ripple injection testing device. Background Technology

[0002] The common-mode ripple injection test device is a specialized device used to evaluate the tolerance of electronic devices (such as on-board chargers, battery management systems, etc.) to common-mode interference signals. Its core function is to verify the stability and safety of the equipment under the influence of common-mode ripple by simulating the interference between the signal line and ground (such as power grid fluctuations and high-frequency noise) in actual working conditions.

[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems of common mode ripple injection testing devices: In the existing technology, it is not convenient to adjust the height of the mounting bracket used to support the control component. The traditional fixing method is to fix the mounting bracket to both sides of the machine body with screws. When it is necessary to adjust the height according to the operator's usage, it is necessary to use tools to remove the screws on both sides at the same time. After the height adjustment is completed, the mounting holes are aligned and fixed with screws. The operation is inconvenient, and the mounting bracket may tilt during disassembly and adjustment, causing the control component to fall and be damaged by impact, resulting in poor safety. Utility Model Content

[0004] In view of the problems existing in the above-mentioned common mode ripple injection test device, this utility model is proposed.

[0005] Therefore, the problem to be solved by this utility model is how to solve the problem that it is inconvenient to adjust the height of the support frame used to support the control component. It is necessary to use tools to remove the screws on both sides at the same time, and after the height is adjusted, the mounting holes are aligned and fixed with screws. This is inconvenient to operate, and the support frame may tilt during disassembly and adjustment, causing the control component to fall and be damaged by impact.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a common mode ripple injection testing device, comprising: a testing mechanism including a testing machine, wherein the surface of the testing machine is respectively provided with a sliding groove and a positioning hole located on both sides thereof; and a placement support mechanism, installed on the surface of the testing machine, including a placement platform, wherein the placement platform and the surface of the testing machine are provided with positioning components, the surface of the placement platform is provided with a fixing component, the bottom of the placement platform is provided with a driving component, and the bottom of the placement platform is fixedly connected with a handle, the positioning component includes a housing, the housing is fixedly connected to the surface of the placement platform, and a connecting rod is slidably connected to the surface of the housing, one end of the connecting rod is fixedly connected with a wedge, the fixing component includes a square rod, one end of the square rod is fixedly connected with a square block, the top of the square block is fixedly connected with a short column, the driving component includes a pull rod, one end of the pull rod is fixedly connected with an extrusion block, and the top of the pull rod is fixedly connected with an extrusion plate.

[0007] As a preferred embodiment of the common mode ripple injection testing device of this utility model, the positioning component further includes a positioning post, which is slidably connected to the inner surface of the housing, with one end inserted into the positioning hole and the other end fixedly connected to the surface of the connecting rod, and the connecting rod is slidably connected to the surface of the placement platform.

[0008] As a preferred embodiment of the common mode ripple injection testing device of this utility model, a T-shaped block is slidably connected in the groove, the T-shaped block is fixedly connected to one side of the housing, a first short block and a first spring are respectively sleeved on the surface of the connecting rod near the wedge, the first short block is fixedly connected to the bottom of the placement platform, and the two ends of the first spring are fixedly connected to the surfaces of the wedge and the first short block respectively.

[0009] In a preferred embodiment of the common mode ripple injection testing device of this utility model, a second spring is fixedly connected to the inner wall of the housing, one end of the second spring is fixedly connected to the surface of the connecting rod, one end of the connecting rod passes through a guide post, and both ends of the guide post are fixedly connected to the inner wall of the housing.

[0010] In a preferred embodiment of the common mode ripple injection testing device of this utility model, the fixing component further includes a movable plate, which is fixedly connected to one end of the square rod. A vertical plate is fixedly connected to the top of the movable plate and slidably connected to the surface of the placement platform. A second short block and a third spring are respectively sleeved on the surface of the square rod. The second short block is fixedly connected to the bottom of the placement platform, and the two ends of the third spring are fixedly connected to the surfaces of the second short block and the square block, respectively.

[0011] In a preferred embodiment of the common mode ripple injection testing device of this utility model, a clamping member is installed on the surface of the vertical plate, a guide rod is provided through the surface of the vertical plate, and the two ends of the guide rod are fixedly connected to the surface of the placement platform.

[0012] As a preferred embodiment of the common mode ripple injection testing device of this utility model, the clamping member includes a movable rod that passes through the vertical plate and is fixedly connected to a clamping cover. A fourth spring is sleeved on the surface of the movable rod, and the two ends of the fourth spring are fixedly connected to the inner wall of the clamping cover and the surface of the vertical plate, respectively.

[0013] In a preferred embodiment of the common mode ripple injection testing device of this utility model, the driving component further includes a handle, which is fixedly connected to one end of a pull rod. A third short block is sleeved on the surface of the pull rod, and the third short block is fixedly connected to the bottom of the placement platform.

[0014] As a preferred embodiment of the common mode ripple injection testing device of this utility model, a fifth spring is sleeved on one end of the pull rod, and the two ends of the fifth spring are respectively fixedly connected to the handle surface and the second short block surface.

[0015] In a preferred embodiment of the common mode ripple injection testing device of this utility model, a limiting block is sleeved on one end surface of the pull rod, and the limiting block is fixedly connected to the pull rod.

[0016] The beneficial effects of this utility model are as follows: This utility model can easily adjust the height of the support frame used to support the control component and fix the control component through the support mechanism. It does not rely on the screws on both sides to fix the support frame. The adjustment does not require repeated disassembly and assembly of screws, which is time-saving and easy to operate. The frame will not tilt. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Three-dimensional structure of the common-mode ripple injection test device Figure 1 .

[0019] Figure 2 Three-dimensional structure of the common-mode ripple injection test device Figure 2 .

[0020] Figure 3 Common mode ripple injection test device Figure 2 A magnified structural diagram of A in the middle.

[0021] Figure 4 A partial cross-sectional three-dimensional structural view of the common-mode ripple injection test device.

[0022] Figure 5 Partial cross-sectional three-dimensional structural view of the clamping component of the common mode ripple injection test device.

[0023] In the diagram: 100, testing mechanism; 101, testing machine; 102, slide; 103, positioning hole; 200, placement support mechanism; 201, placement platform; 202, positioning component; 203, fixing component; 204, driving component; 205, handle; 202a, housing; 202b, connecting rod; 202c, wedge block; 202d, positioning post; 202e, T-block; 202f, first short block; 202g, first spring; 202h, second spring; 202i, guide post; 203 a. Moving plate; 203b. Vertical plate; 203c. Square rod; 203d. Short column; 203e. Second short block; 203f. Third spring; 203g. Clamping component; 203h. Guide rod; 203i. Square block; 203g-1. Movable rod; 203g-2. Clamping cover; 203g-3. Fourth spring; 204a. Pull rod; 204b. Extrusion block; 204c. Extrusion plate; 204d. Handle; 204e. Third short block; 204f. Fifth spring; 204g. Limiting block. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] Reference Figure 1 and Figure 2This is the first embodiment of the present invention. This embodiment provides a common mode ripple injection test device. The common mode ripple injection test device includes a test mechanism 100 and a placement support mechanism 200. The test mechanism 100 can be used to evaluate the tolerance of electronic equipment to common mode interference signals. The placement support mechanism 200 can facilitate the adjustment of the height of the placement frame used to support the control component and fix the control component.

[0029] Specifically, the testing organization 100 includes a testing machine 101, which is a common-mode ripple injection testing machine, which is existing technology. The working principle of this part is also existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here.

[0030] The surface of the testing machine 101 is provided with sliding grooves 102 and positioning holes 103 on both sides. There are two sliding grooves 102 on both sides of the testing machine 101 to limit the T-block 202e so that the T-block 202e can move within it without falling off. There are several positioning holes 103, which are evenly distributed on both sides of the testing machine 101. By inserting the positioning pin 202d into the corresponding positioning hole 103, the height position of the T-block 202e, the housing 202a and the placement platform 201 are fixed, and the height can be adjusted.

[0031] A support mechanism 200 is installed on the surface of the testing machine 101. It includes a placement platform 201. Positioning elements 202 are provided on the surface of the placement platform 201 and the testing machine 101. The positioning elements 202 can fix the placement platform 201 on the surface of the testing machine 101 and can quickly adjust its height. Fixing elements 203 are installed on the surface of the placement platform 201. The fixing elements 203 can fix the control components placed on the placement platform 201 to prevent them from falling and being damaged by collisions. A driving element 204 is provided at the bottom of the placement platform 201. A handle 205 is fixedly connected to the bottom of the placement platform 201. The positioning element 202 includes a housing 202a. The housing 202a is fixedly connected to the surface of the placement platform 201, and a connecting rod 202b is slidably connected to the surface. The connecting rod 202b passes through the housing 202a and the placement platform 201 and is slidably connected to them. The driving element 204 can drive the positioning element 202 and the fixing element 203.

[0032] One end of the connecting rod 202b is fixedly connected to a wedge block 202c. The fixing member 203 includes a square rod 203c, one end of which is fixedly connected to a square block 203i. A short column 203d is fixedly connected to the top of the square block 203i. The driving member 204 includes a pull rod 204a, one end of which is fixedly connected to an extrusion block 204b. The movement of the pull rod 204a can move the extrusion block 204b and the extrusion plate 204c, causing the extrusion block 204b to move and squeeze the wedge block 202c, thereby driving the connecting rod 202b and the positioning column 202d to move, causing the positioning column 202d to disengage from the original positioning hole 103, thereby releasing the height fixation of the placement platform 201. The height can be adjusted by moving the placement platform 201 up and down.

[0033] A pressing plate 204c is fixedly connected to the top of the pull rod 204a. The movement of the pressing plate 204c compresses the short column 203d, causing it to move. This, in turn, moves the square rod 203c, the moving plate 203a, the vertical plate 203b, and the clamping member 203g, thereby re-fixing the control components on the placement platform 201. This effectively prevents tilting and falling during the height adjustment process, improving the safety of use.

[0034] Example 2

[0035] Reference Figures 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, the positioning component 202 also includes a positioning post 202d, which is slidably connected to the inner surface of the housing 202a. One end of the positioning post 202d is inserted into the positioning hole 103. The end of the positioning post 202d located in the positioning hole 103 is chamfered to make it easier to insert into the positioning hole 103. The other end is fixedly connected to the surface of the connecting rod 202b. The connecting rod 202b is slidably connected to the surface of the placement platform 201. The cross-section of the connecting rod 202b is square, which can play a limiting and guiding role and will not rotate during movement.

[0037] A T-shaped block 202e is slidably connected in the slide groove 102. The T-shaped block 202e is fixedly connected to one side of the housing 202a. The slide groove 102 and the T-shaped block 202e cooperate. The T-shaped block 202e moves in the slide groove 102, which can drive the housing 202a and the placement platform 201 to move up and down. When the positioning post 202d is inserted into the positioning hole 103, the T-shaped block 202e, the housing 202a and the placement platform 201 are positioned and fixed. It is slidably connected to the first short block 202f through the connecting rod 202b.

[0038] A first short block 202f and a first spring 202g are respectively fitted on the surface of the connecting rod 202b near the wedge block 202c. The first short block 202f supports the connecting rod 202b and prevents it from being suspended and deformed due to uneven force. The first short block 202f is fixedly connected to the bottom of the placement platform 201. The two ends of the first spring 202g are fixedly connected to the surfaces of the wedge block 202c and the first short block 202f, respectively. When the wedge block 202c is squeezed and moved by the extrusion block 204b, the first spring 202g deforms and provides power for the resetting of the connecting rod 202b and the wedge block 202c.

[0039] A second spring 202h is fixedly connected to the inner wall of the housing 202a. One end of the second spring 202h is fixedly connected to the surface of the connecting rod 202b. When the movable rod 203g-1 moves and causes compression deformation, the second spring 202h provides power for the reset of the connecting rod 202b and the positioning post 202d. One end of the connecting rod 202b has a guide post 202i passing through it, and both ends of the guide post 202i are fixedly connected to the inner wall of the housing 202a. The guide post 202i guides and limits the connecting rod 202b again, making its movement more stable when it drives the positioning post 202d to move.

[0040] The fixing component 203 also includes a movable plate 203a, which is fixedly connected to one end of the square rod 203c. A vertical plate 203b is fixedly connected to the top of the movable plate 203a. There are four vertical plates 203b, which are located at the four corners of the top of the placement platform 201. The vertical plates 203b are slidably connected to the surface of the placement platform 201. A second short block 203e and a third spring 203f are respectively sleeved on the surface of the square rod 203c. The second short block 203e supports, guides and limits the square rod 203c.

[0041] The second short block 203e is fixedly connected to the bottom of the placement platform 201. The two ends of the third spring 203f are fixedly connected to the surfaces of the second short block 203e and the square block 203i, respectively. When the third spring 203f is subjected to the elastic force generated by the compression of the square block 203i, the square rods 203c, the moving plate 203a, the vertical plate 203b and the clamping member 203g on both sides tend to move closer to each other, thereby fixing the control member through the clamping member 203g on both sides.

[0042] A clamping component 203g is installed on the surface of the vertical plate 203b, and a guide rod 203h is provided through the surface of the vertical plate 203b. The guide rod 203h is slidably connected to the vertical plate 203b. The guide rod 203h supports the vertical plate 203b, and in turn supports the moving plate 203a and the square rod 203c, preventing one end from being suspended and improving stability. Both ends of the guide rod 203h are fixedly connected to the surface of the placement platform 201.

[0043] The clamping component 203g includes a movable rod 203g-1, which passes through the vertical plate 203b and is fixedly connected to a clamping cover 203g-2. The movable rod 203g-1 is slidably connected to the vertical plate 203b. The movable rod 203g-1 guides and limits the clamping cover 203g-2 to prevent it from tilting. A fourth spring 203g-3 is sleeved on the surface of the movable rod 203g-1. The two ends of the fourth spring 203g-3 are fixedly connected to the inner wall of the clamping cover 203g-2 and the surface of the vertical plate 203b, respectively. A slope is provided on one side of the clamping cover 203g-2 to facilitate the squeezing of the clamping cover 203g-2 to move it when the control component is placed. After placement, the clamping cover 203g-2 fixes it.

[0044] When the pull rod 204a is pulled to move the extrusion plate 204c, the vertical plate 203b is moved by the action of the short column 203d, the block 203i, the square rod 203c and the moving plate 203a, which in turn compresses the fourth spring 203g-3. The resulting elastic force acts on the clamp 203g-2, strengthening the fixation of the control components during the height adjustment process.

[0045] The driving component 204 also includes a handle 204d, which is fixedly connected to one end of the pull rod 204a. Pulling the handle 204d facilitates the movement of the pull rod 204a. The pull rod 204a is slidably connected to the third short block 204e. The third short block 204e is sleeved on the surface of the pull rod 204a and is fixedly connected to the bottom of the placement platform 201. The third short block 204e supports, guides, and limits the pull rod 204a, preventing the pull rod 204a, extrusion plate 204c, and extrusion block 204b from being suspended in the air.

[0046] A fifth spring 204f is sleeved on one end of the pull rod 204a. When the handle 204d and the pull rod 204a are pulled, the fifth spring 204f stretches and generates elastic force to provide a force for the handle 204d and the pull rod 204a to reset. The two ends of the fifth spring 204f are fixedly connected to the surface of the handle 204d and the surface of the second short block 203e, respectively.

[0047] A limiting block 204g is fitted on one end of the pull rod 204a. The limiting block 204g limits the final position of the pull rod 204a, preventing the extrusion block 204b from dislodging from the surface of the wedge block 202c. At the same time, it limits the final position of the extrusion plate 204c pressing the short column 203d. The limiting block 204g is fixedly connected to the pull rod 204a.

[0048] When in use, the control component is placed on top of the placement platform 201 and pressed down, so that the side of the control component acts on the clamping component 203g, causing the clamping component 203g, the vertical plate 203b, the movable plate 203a, the square rod 203c, the square block 203i and the short column 203d to move, thereby compressing the third spring 203f. When the control component is completely placed on the placement platform 201, the clamping component 203g clamps and fixes the control component under the elastic force generated by the compression of the third spring 203f.

[0049] When the height of the placement platform 201 and the control component needs to be adjusted, the thumb passes through the handle 205 and the other four fingers pass through the pull handle 204d to exert force, causing the pull handle 204d to drive the pull rod 204a, the extrusion block 204b and the extrusion plate 204c to move. The movement of the extrusion block 204b squeezes the wedge block 202c to move it, which in turn drives the connecting rod 202b and the positioning post 202d to move, causing the positioning post 202d to disengage from the original positioning hole 103, thereby releasing the height fixation of the placement platform 201.

[0050] During this process, the movement of the extrusion plate 204c compresses the short column 203d, causing it to move. This, in turn, moves the square rod 203c, the moving plate 203a, and the vertical plate 203b, thereby compressing the fourth spring 203g-3. The resulting elastic force acts on the clamp 203g-2, strengthening the fixation of the control components during the height adjustment. After the placement platform 201 is moved up and down to adjust to an appropriate height, the force applied to the handle 204d is gradually reduced. Under the action of the corresponding spring rebound, the positioning column 202d is inserted into the positioning hole 103 for positioning, completing the height adjustment.

[0051] In summary, the placement support mechanism 200 facilitates the adjustment of the height of the placement frame used to support the control components and the fixation of the control components. Compared with the prior art, it does not rely on screws on both sides to fix the placement frame, and the adjustment does not require repeated disassembly and assembly of screws, which is time-saving and easy to operate, and the frame will not tilt.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A common-mode ripple injection testing device, characterized in that: include, The testing mechanism (100) includes a testing machine (101), wherein the surface of the testing machine (101) is provided with a sliding groove (102) and a positioning hole (103) respectively, and located on both sides thereon; as well as, A support mechanism (200) is mounted on the surface of a testing machine (101). It includes a placement platform (201), positioning elements (202) on the surface of the placement platform (201) and the testing machine (101), fixing elements (203) on the surface of the placement platform (201), a driving element (204) at the bottom of the placement platform (201), and a handle (205) fixedly connected to the bottom of the placement platform (201). The positioning element (202) includes a housing (202a), which is fixedly connected to the surface of the placement platform (201). Furthermore, a connecting rod (202b) is slidably connected to the surface, and a wedge block (202c) is fixedly connected to one end of the connecting rod (202b). The fixing member (203) includes a square rod (203c), a block (203i) is fixedly connected to one end of the square rod (203c), and a short column (203d) is fixedly connected to the top of the block (203i). The driving member (204) includes a pull rod (204a), an extrusion block (204b) is fixedly connected to one end of the pull rod (204a), and an extrusion plate (204c) is fixedly connected to the top of the pull rod (204a).

2. The common-mode ripple injection test apparatus as described in claim 1, characterized in that: The positioning component (202) further includes a positioning post (202d), which is slidably connected to the inner surface of the housing (202a), with one end inserted into the positioning hole (103) and the other end fixedly connected to the surface of the connecting rod (202b), which is slidably connected to the surface of the placement platform (201).

3. The common-mode ripple injection test apparatus as described in claim 2, characterized in that: A T-shaped block (202e) is slidably connected in the groove (102). The T-shaped block (202e) is fixedly connected to one side of the housing (202a). A first short block (202f) and a first spring (202g) are respectively sleeved on the surface of the connecting rod (202b) near the wedge (202c). The first short block (202f) is fixedly connected to the bottom of the placement platform (201). The two ends of the first spring (202g) are fixedly connected to the surfaces of the wedge (202c) and the first short block (202f) respectively.

4. The common-mode ripple injection test apparatus as described in claim 3, characterized in that: A second spring (202h) is fixedly connected to the inner wall of the housing (202a). One end of the second spring (202h) is fixedly connected to the surface of the connecting rod (202b). One end of the connecting rod (202b) is penetrated by a guide post (202i), and both ends of the guide post (202i) are fixedly connected to the inner wall of the housing (202a).

5. The common-mode ripple injection test apparatus as described in claim 1, characterized in that: The fixing component (203) further includes a movable plate (203a), which is fixedly connected to one end of the square rod (203c). A vertical plate (203b) is fixedly connected to the top of the movable plate (203a), and the vertical plate (203b) is slidably connected to the surface of the placement platform (201). A second short block (203e) and a third spring (203f) are respectively sleeved on the surface of the square rod (203c). The second short block (203e) is fixedly connected to the bottom of the placement platform (201), and the two ends of the third spring (203f) are fixedly connected to the surfaces of the second short block (203e) and the square block (203i) respectively.

6. The common-mode ripple injection test apparatus as described in claim 5, characterized in that: A clamping member (203g) is installed on the surface of the vertical plate (203b), and a guide rod (203h) is provided through the surface of the vertical plate (203b), with both ends of the guide rod (203h) fixedly connected to the surface of the placement platform (201).

7. The common-mode ripple injection test apparatus as described in claim 6, characterized in that: The clamping member (203g) includes a movable rod (203g-1), which passes through the vertical plate (203b) and is fixedly connected to a clamping cover (203g-2). A fourth spring (203g-3) is sleeved on the surface of the movable rod (203g-1), and the two ends of the fourth spring (203g-3) are fixedly connected to the inner wall of the clamping cover (203g-2) and the surface of the vertical plate (203b), respectively.

8. The common-mode ripple injection test apparatus as described in claim 1, characterized in that: The drive unit (204) also includes a handle (204d), which is fixedly connected to one end of the pull rod (204a). A third short block (204e) is sleeved on the surface of the pull rod (204a), and the third short block (204e) is fixedly connected to the bottom of the placement platform (201).

9. The common-mode ripple injection test apparatus as described in claim 8, characterized in that: A fifth spring (204f) is fitted on one end of the pull rod (204a), and the two ends of the fifth spring (204f) are fixedly connected to the surface of the handle (204d) and the surface of the second short block (203e), respectively.

10. The common-mode ripple injection test apparatus as described in claim 9, characterized in that: A limiting block (204g) is fitted on one end of the pull rod (204a), and the limiting block (204g) is fixedly connected to the pull rod (204a).

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