Rectifier bridge flatness detection device

Abstract

A rectifier bridge flatness detection device relates to the technical field of semiconductors. Comprising a measuring table for bearing a rectifier bridge, a horizontal arm fixedly arranged on the top of the measuring table and a push rod. The push rod is pressed on the measuring table through the spring. When the flatness is detected, the push rod is pulled up, and the center hole of the 6KBJ material to be detected is aligned with the positioning hole in the measuring table; the push rod is put down, the material is pressed and fixed through the tension of the spring, the feeler gauge is taken out, the four edges of the material are measured according to the size of the feeler gauge from small to large, and therefore the flatness value of the back face of the material body is obtained. The device has the characteristics of exquisite structure, low cost, simple and stable detection operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor technology, and in particular to a device for detecting the flatness of a rectifier bridge. Background Technology

[0002] A rectifier circuit uses the unidirectional conductivity of a diode to convert a fluctuating alternating current (AC) voltage into a unidirectional pulsating voltage. Under the influence of an AC power supply, the rectifier diode periodically turns on and off, providing the load with pulsating direct current. During the positive half-cycle of the power supply, the diode conducts, making the current and voltage waveforms on the load identical in shape; during the negative half-cycle of the power supply voltage, the diode is in reverse cutoff, bearing the negative half-cycle voltage of the power supply, and the load voltage is almost zero.

[0003] As a key electronic component that converts alternating current (AC) to direct current (DC), rectifier bridges have a wide range of applications. Firstly, they play a crucial role in power adapters, chargers, LED lights, and other devices, meeting the power requirements of downstream circuits. Secondly, rectifier bridges are also widely used in large industrial equipment, precision medical instruments, power distribution cabinets, elevators, and other industrial applications.

[0004] The 6KBJ rectifier bridge, as the most common type, has the following characteristics:

[0005] 1. It has a large current carrying capacity: Max~50A, a strong surge capacity: Max~400A, a high reverse voltage of 1000V, and a low forward voltage drop: 1.0-1.1V.

[0006] 2. It has stable high-temperature characteristics, reliable performance, and strong heat dissipation function.

[0007] When using rectifier bridges like the 6KBJ, thermal grease needs to be applied to the back of the body, and it needs to be screwed onto the heat sink. Therefore, the flatness of the back of the material body needs to be standardized, otherwise it will affect the heat dissipation function of the material. Therefore, developing a dedicated positioning device that facilitates the detection of the flatness of the rectifier bridge is a technical problem that urgently needs to be solved in this case. Utility Model Content

[0008] To address the above problems, this utility model provides a compact rectifier bridge flatness detection device that facilitates stable detection of rectifier bridge flatness.

[0009] The technical solution of this utility model is:

[0010] The rectifier bridge flatness testing device includes:

[0011] The measuring platform has a horizontal top surface and is equipped with positioning holes.

[0012] A vertical arm is fixedly mounted on the measuring platform.

[0013] A horizontal arm is detachably and fixedly mounted on the top of the vertical arm and has a through hole;

[0014] The push rod is slidably disposed in the through hole, with its top extending upward from the through hole and its bottom having a guide pin adapted to the positioning hole;

[0015] A positioning ring is adjustable and fixedly sleeved on the push rod; a spring is provided between the positioning ring and the horizontal arm and sleeved on the push rod.

[0016] Specifically, the length of the guide pin is greater than the thickness of the rectifier bridge.

[0017] Specifically, the positioning ring is provided with countersunk bolts, which are detachably and fixedly mounted on the push rod (400).

[0018] Specifically, the top of the push rod is provided with a detachable and fixed pull ring.

[0019] Specifically, the top of the push rod is provided with a collar hole;

[0020] The collar hole is provided with a movable collar.

[0021] This utility model includes a measuring platform supporting a rectifier bridge, a horizontal arm fixedly mounted on top of the measuring platform, and a push rod; the push rod is pressed down on the measuring platform by a spring. When checking flatness, the push rod is pulled up, aligning the center hole of the 6KBJ material to be tested with the positioning hole on the measuring platform; the push rod is then lowered, and the material is pressed and fixed in place by the spring tension. A feeler gauge is then taken out, and measurements are taken on the four sides of the material from smallest to largest according to the feeler gauge size, thereby obtaining the flatness value of the back side of the material. This invention features a compact structure, low cost, and simple and stable testing operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention (spring not shown).

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure after the rectifier bridge is hidden;

[0024] Figure 3 This is a three-dimensional structural diagram of the push rod;

[0025] Figure 4 This is a schematic diagram of the pull ring mechanism;

[0026] Figure 5 This is a schematic diagram of the collar setup structure;

[0027] In the diagram, 100 is the measuring platform, and 110 is the positioning hole.

[0028] 200 is the vertical arm.

[0029] 300 is the horizontal arm, and 310 is the through hole.

[0030] 400 is the push rod, and 410 is the guide pin.

[0031] 500 is the positioning ring, 600 is the spring, and 700 is the rectifier bridge. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0035] The following is for reference. Figure 1-5 Describe this utility model;

[0036] The rectifier bridge flatness testing device includes:

[0037] The measuring platform 100 has a horizontal top surface and is equipped with positioning holes 110.

[0038] A vertical arm 200 is vertically fixed on the measuring table 100;

[0039] A horizontal arm 300 is horizontally and detachably fixed to the top of the vertical arm 200 and has a through hole 310.

[0040] The push rod 400 is slidably disposed in the through hole 310, with its top extending upward from the through hole 310 and its bottom having a guide pin 410 adapted to the positioning hole 110. The length of the guide pin (410) is greater than the thickness of the rectifier bridge (700), and after passing through the center hole of the rectifier bridge 700, it partially extends into the positioning hole 110.

[0041] A positioning ring 500 is adjustable and fixedly sleeved on the push rod 400; a spring 600 sleeved on the push rod 400 is provided between the positioning ring 500 and the horizontal arm 300.

[0042] The positioning ring 500 is equipped with countersunk bolts, which are detachably and fixedly mounted on the push rod 400.

[0043] To facilitate the pulling of push rod 400, the following optimizations were made:

[0044] The top of the push rod 400 is equipped with a detachable and fixed pull ring.

[0045] The top of the push rod 400 is provided with a collar hole; a movable collar is provided inside the collar hole.

[0046] To check flatness, pull up the push rod and align the center hole of the 6KBJ material to be tested with the positioning hole on the measuring stage; lower the push rod, and the material will be pressed and fixed in place by the tension of the spring. Take out the feeler gauge and measure the four sides of the material from smallest to largest according to the feeler gauge size, thereby obtaining the flatness value of the back of the material. This solution features a compact structure, low cost, and simple and stable testing operation.

[0047] Regarding the information disclosed in this case, the following points need to be clarified:

[0048] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design.

[0049] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0050] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A rectifier bridge flatness detection device, characterized in that, include: The measuring platform (100) has a horizontal top surface and is equipped with positioning holes (110). A vertical arm (200) is vertically fixed on the measuring table (100); A horizontal arm (300) is horizontally and detachably fixed to the top of the vertical arm (200) and has a through hole (310). The push rod (400) is slidably disposed in the through hole (310), with its top extending upward from the through hole (310) and its bottom provided with a guide pin (410) adapted to the positioning hole (110). A positioning ring (500) is adjustable and fixedly sleeved on the push rod (400); a spring (600) sleeved on the push rod (400) is provided between the positioning ring (500) and the horizontal arm (300).

2. The rectifier bridge flatness detection device according to claim 1, characterized in that, The length of the guide pin (410) is greater than the thickness of the rectifier bridge (700).

3. The rectifier bridge flatness detection device according to claim 1, characterized in that, The positioning ring (500) is provided with countersunk bolts, which are detachably and fixedly mounted on the push rod (400).

4. The rectifier bridge flatness detection device according to claim 1, characterized in that, The top of the push rod (400) is provided with a detachable and fixed pull ring.

5. The rectifier bridge flatness detection device according to claim 1, characterized in that, The push rod (400) has a collar hole at its top; The collar hole is provided with a movable collar.

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