Switching power supply testing device

Abstract

The utility model relates to the technical field of power supply testing, and particularly discloses a switching power supply testing device which comprises a testing device used for testing a target object, a sealing cover is arranged on the outer side of the testing device, the sealing cover is located on the outer side of the tested target object, and a straightening assembly is arranged on the inner side of the sealing cover below the testing device. The straightening assembly is matched with a probe of the testing device; according to the utility model, through the cooperation of the abutting block and the metal block of the straightening assembly, the bent probe can be straightened, so that the probe can be more accurately contacted with a test target object, and the stability of electric signal transmission in the test process is ensured, thereby improving the reliability of the test result of the switching power supply.

Description

Technical Field

[0001] This utility model relates to the field of power supply testing technology, specifically a switching power supply testing device. Background Technology

[0002] On the circuit board of a switching power supply, there are numerous solder joints used to connect various components. Probes can be used to detect problems such as cold solder joints and short circuits.

[0003] During probe testing, probes made of different materials exhibit variations in mechanical properties such as hardness and toughness. For instance, some softer probes, like copper probes, while possessing good electrical conductivity, are relatively prone to bending and deformation under prolonged stress.

[0004] Furthermore, frequent insertion and removal operations subject the probes to constant friction and stress, accelerating their wear and deformation. In some large-scale production testing scenarios, probes need to undergo numerous insertion and removal operations in a short period, which undoubtedly increases the likelihood of probe deformation. Based on this, this application provides a switching power supply testing device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a switching power supply testing device that solves the problem that frequent plugging and unplugging operations in existing technologies cause the probes to be subjected to continuous friction and stress, accelerating their wear and deformation.

[0006] The present invention relates to a switching power supply testing device, comprising a testing device for testing a target object, wherein a closed cover is provided on the outside of the testing device and the closed cover is located on the outside of the test target object, and a straightening component is provided below the testing device and located on the inside of the closed cover, the straightening component being adapted to the probe of the testing device;

[0007] The straightening component is connected to the probe sleeve of the testing device via a connector, and is used to protect the probe;

[0008] The straightening assembly includes a cylindrical body, an insertion hole on the inner side of the cylindrical body, an abutment block at a preset angle on the inner side of the insertion hole, and a metal block at one end of the abutment block, the metal block abutting against the outer side of the probe of the testing device.

[0009] As a further improvement of this utility model, the top of the cylinder is provided with one or more positioning protrusions arranged in a circular array, the top of the positioning protrusions being adapted to the connecting member for fixing the cylinder.

[0010] As a further improvement of this utility model, a convex ring is provided on the top of the cylinder outside the positioning convex post, and one or more communication ports are provided on the inner diameter of the convex ring.

[0011] As a further improvement of this utility model, the positioning protrusion and protruding ring are adapted to the connecting parts for fixing the cylinder.

[0012] As a further improvement of this utility model, one end of the communication port extends to the inside of the pin hole, and an arc-shaped block is provided at the extended end. There are one or more arc-shaped blocks, which are arranged in a ring array.

[0013] As a further improvement of this utility model, the inner side of the arc-shaped block is hollow, and the outer arc-shaped edge is provided with dust suction ports that are evenly spaced, and the dust suction ports are adapted to the connecting port.

[0014] As a further improvement of this utility model, one or more support rods are arranged in a ring array on the inner side of the pin hole, and one end of the support rod is provided with an abutment block.

[0015] As a further improvement of this utility model, the support rod is inclined at a preset angle, and the plurality of support rods form a cone shape to restrict the pins of the testing device.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention straightens a bent probe by using the contact block and metal block of the straightening component, enabling the probe to make more accurate contact with the test target, ensuring the stability of electrical signal transmission during the test, and thus improving the reliability of the switching power supply test results.

[0018] Precise pin positioning reduces contact problems caused by pin wobbling or misalignment, ensuring stable test signal transmission and providing a guarantee for accurate test data acquisition. Furthermore, the cooperation between the straightening components and connectors effectively prevents the probe from bending and deforming during frequent insertion and removal and long-term use. At the same time, the enclosure avoids damage to the probe from external factors, extending the probe's service life and reducing testing costs. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of the test device and the enclosure combined according to this utility model;

[0021] Figure 2 This is a front view structural diagram of the testing device of this utility model;

[0022] Figure 3 This utility model Figure 2Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a bottom view of the straightening component of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the straightening component of this utility model;

[0025] Figure 6 This is a top view of the straightening component of this utility model.

[0026] In the diagram: 1. Testing device; 2. Enclosed enclosure; 3. Straightening assembly; 4. Connecting component;

[0027] 31. Cylinder body; 32. Dust suction port; 33. Positioning protrusion; 34. Pin hole; 36. Contact block; 37. Connecting port; 38. Arc-shaped block; 39. Support rod; 310. Metal block. Detailed Implementation

[0028] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0029] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Please see Figure 1-6 On the circuit board of a switching power supply, numerous solder joints play a crucial role in connecting various components. The quality of these solder joints directly affects the performance and stability of the switching power supply; problems such as cold solder joints and short circuits can lead to power supply failures. Therefore, an effective testing method is needed to ensure the quality of the solder joints, and probe testing is such a commonly used testing method.

[0031] Probes made of different materials have different mechanical properties. Taking copper probes as an example, although they have good conductivity, which is an important characteristic for accurate measurement of electrical parameters, their hardness is relatively low, and they are prone to bending and deformation under long-term external force. Once the probe is deformed, it may affect the accuracy and reliability of the test, or even prevent the test from being performed normally. Based on this, this application provides a possible embodiment, specifically a switching power supply testing device 1, including a testing device 1 for testing a target object, a sealing cover 2 disposed on the outside of the testing device 1, the sealing cover 2 being located outside the test target object, and a straightening component 3 disposed below the testing device 1, inside the sealing cover 2, the straightening component 3 being adapted to the probe of the testing device 1;

[0032] The straightening component 3 is connected to the probe sleeve of the testing device 1 via the connector 4, and is used to protect the probe;

[0033] The straightening assembly 3 includes a cylinder 31, with a pin hole 34 on the inner side of the cylinder 31. A contact block 36 is provided on the inner side of the pin hole 34 at a preset angle. A metal block 310 is provided at one end of the contact block 36, and the metal block 310 contacts the outer side of the probe of the testing device 1.

[0034] The pin insertion hole 34 is located on the inner side of the cylinder 31 and serves as the channel for probe insertion. The diameter of the pin insertion hole 34 is slightly larger than the diameter of the probe, which ensures that the probe can be inserted smoothly while also allowing the probe some room to move within the pin insertion hole 34, facilitating subsequent straightening operations.

[0035] The contact block 36 is located inside the probe hole 34 and is set at a preset angle. Its function is to generate a certain corrective force through contact with the probe when the probe is inserted into the probe hole 34, thereby straightening the bent probe. The contact block 36 can be made of elastic rubber material, such as nitrile rubber. This material has good elasticity and wear resistance, which can apply a straightening force to the probe while avoiding damage to the probe surface.

[0036] A metal block 310 is disposed at one end of the contact block 36 and contacts the probe of the testing device 1. The metal block 310 can be made of a copper alloy, such as brass, because it has good conductivity and wear resistance. The function of the metal block 310 is twofold: firstly, to enhance the contact with the probe, ensuring accurate application of corrective force to the probe during straightening; secondly, when the probe is inserted into the pin hole 34, the metal block 310 can also provide some conductivity, for example, by detecting whether the probe is properly energized and assisting in determining whether the probe is damaged.

[0037] The connector 4 is used to connect the straightening assembly 3 to the probe of the testing device 1, serving to fix and connect them. The connector 4 can be designed as an elastic ferrule structure, made of rubber or plastic, with grooves inside that fit the probe and the cylinder 31. When the probe is inserted into the pin hole 34, the connector 4 is fitted onto the connection between the probe and the cylinder 31, and the elastic ferrule's contraction force tightly connects the two together. This ensures the relative position stability of the straightening assembly 3 and the probe, and also prevents dust and debris from entering the pin hole 34 to a certain extent.

[0038] Work process:

[0039] During testing, when straightening or protecting the probe is required, the probe of the testing device 1 is inserted into the pin hole 34 of the straightening assembly 3. Because the contact block 36 is set at a preset angle, the probe contacts the contact block 36 and the metal block 310 during insertion. The elasticity of the contact block 36 generates a reverse corrective force on the bent probe, gradually restoring it to its original straight state. Simultaneously, the connector 4 securely connects the straightening assembly 3 to the probe, providing additional protection for the probe and preventing it from bending again due to external impact during subsequent testing. The enclosure 2 provides a relatively safe and stable environment throughout the entire testing and probe straightening process.

[0040] By combining the straightening component 3 and the connector 4, the bending deformation of the probe can be effectively prevented during frequent insertion and removal and long-term use, thus extending the service life of the probe and reducing the testing cost. Moreover, the straightened probe can make more accurate contact with the test target, ensuring the stability and accuracy of electrical signal transmission during the test, thereby improving the reliability of the switching power supply test results.

[0041] The enclosure 2 provides a relatively closed environment for the testing process, avoiding interference from external factors and preventing operators from accidentally touching the testing area, thus improving the safety of the testing process.

[0042] Meanwhile, the metal block 310 not only plays an auxiliary role in the straightening process, but can also be used to detect the energization of the probe, realizing the integration of multiple functions and improving the practicality of the testing device 1.

[0043] The top of the cylinder 31 is provided with one or more positioning protrusions 33 arranged in a ring array. The top of the positioning protrusions 33 is adapted to the connector 4 for fixing the cylinder 31.

[0044] The top of the cylinder 31 is provided with a protruding ring outside the positioning protrusion 33, and the inner diameter of the protruding ring is provided with one or more connecting ports 37.

[0045] The positioning protrusion 33 and the protruding ring are adapted to the connector 4 and are used to fix the cylinder 31.

[0046] The convex ring is located on the top of the cylinder 31, outside the positioning convex post 33, and its function is to further enhance the connection stability between the cylinder 31 and the connector 4.

[0047] One or more connecting ports 37 are provided on the inner diameter of the convex ring. On the one hand, the connecting ports 37 can serve as guides when installing the connector 4, facilitating accurate mating of the connector 4 with the cylinder 31. On the other hand, the connecting ports 37 can also be used as vents or drains. For example, when using the test device 1 in a humid environment, the connecting ports 37 can allow water vapor entering the sealed enclosure 2 to escape, preventing moisture accumulation from damaging the internal components of the cylinder 31. Simultaneously, in some test scenarios requiring gas exchange inside the cylinder 31, the connecting ports 37 can also meet the needs of gas flow.

[0048] The connector 4 can be a plastic or metal collar with a positioning hole and an annular groove that fits into the convex ring. During installation, first align the positioning hole of the connector 4 with the positioning protrusion 33 on the top of the cylinder 31, then press it down to insert the positioning protrusion 33 into the positioning hole. Simultaneously, the annular groove of the connector 4 engages with the convex ring to achieve a tight connection.

[0049] Installation process: During installation, the operator can perform preliminary positioning based on the location of the connecting port 37 to ensure that the connector 4 can be accurately fitted onto the cylinder 31. After installation, the connector 4, through its tight fit with the positioning protrusion 33 and the protruding ring, firmly fixes the cylinder 31 in the corresponding position of the testing device 1, preventing the cylinder 31 from shaking or shifting during the test.

[0050] By adapting the positioning protrusion 33 and the protrusion ring to the connector 4, the cylinder 31 can be firmly fixed in the testing device 1, effectively preventing the cylinder 31 from shifting or shaking due to vibration, external impact or other factors during the test, thereby ensuring the relative position stability of the straightening component 3 and the probe, and improving the overall stability and reliability of the testing device 1.

[0051] The circular array of positioning protrusions 33 and the design of the connecting port 37 on the inner diameter of the protrusion ring provide clear positioning marks for the installation of the connector 4, making the installation process more convenient and faster, reducing installation time and labor costs, and also improving the accuracy of installation.

[0052] The convex ring not only plays a role in fixing, but the connecting port 37 on its inner diameter can also serve as a vent and drainage hole, which helps to discharge water vapor in the sealed cover 2 and realize gas exchange, protect the internal components of the cylinder 31 from the effects of humid environment and gas accumulation, and extend the service life of the test device 1.

[0053] One end of the connecting port 37 extends to the inside of the pin hole 34, and an arc-shaped block 38 is provided at the extended end. There are one or more arc-shaped blocks 38, which are arranged in a ring array.

[0054] The inner side of the arc-shaped block 38 is hollow, and the outer arc-shaped edge is provided with equally spaced dust suction ports 32, which are adapted to the connecting port 37.

[0055] One or more support rods 39 are arranged in a ring array on the inner side of the pin hole 34, and an abutment block 36 is provided at one end of the support rod 39.

[0056] The support rods 39 are inclined at a preset angle, and multiple support rods 39 form a cone shape to restrict the pins of the test device 1.

[0057] One or more arc-shaped blocks 38 arranged in a circular array are provided at one end of the connecting port 37. The inner side of the arc-shaped blocks 38 is designed as a cavity structure, which provides space for the vacuuming function. The outer arc-shaped edge is provided with equally spaced suction ports 32, which are adapted to the connecting port 37. When an external vacuuming device draws air through the connecting port 37, dust and other debris can enter the connecting port 37 through the suction ports 32 and are eventually sucked out, thereby keeping the inside of the pin hole 34 clean.

[0058] One or more support rods 39 are arranged in a ring array on the inner side of the pin hole 34, which can effectively restrict the pin.

[0059] One end of the support rod 39 is provided with an abutment block 36. The function of the abutment block 36 is to contact the pin when the pin is inserted into the pin hole 34, thereby positioning and restricting the pin. The abutment block 36 can be made of an elastic material, such as polyurethane rubber, whose elastic properties can ensure that it provides appropriate resistance when the pin is inserted, so that the pin is accurately positioned in the center of the pin hole 34, without damaging the pin.

[0060] Work process:

[0061] When the pin of the test device 1 is inserted into the pin hole 34, the pin will first come into contact with the abutment block 36 on the support rod 39 which is distributed in a conical shape. The elastic action of the abutment block 36 will guide the pin to accurately enter the center position of the pin hole 34, which plays the role of positioning and limiting the pin's shaking.

[0062] During the use of the pin, since the test environment may contain dust and other debris, the external vacuuming device will draw air through the connection port 37. The dust will enter the connection port 37 through the suction port 32 on the outside of the arc block 38 and then be sucked out, thereby keeping the inside of the pin hole 34 clean and reducing the impact of dust on the pin and test results.

[0063] In use, the conical support rods 39 and the contact blocks 36 thereon can effectively position and restrict the pins of the test device 1, ensuring that the pins are accurately positioned in the center of the pin holes 34, improving the connection stability between the pins and the test device 1, and thus ensuring the accuracy of the test results.

[0064] The design of the suction port 32 and the connecting port 37 of the arc-shaped block 38 allows the inside of the pin hole 34 to be cleaned by external vacuuming equipment. This can remove dust and other debris from the pin hole 34 in a timely manner, reduce problems such as poor contact caused by dust accumulation, and extend the service life of the pin and the test device 1.

[0065] The arc-shaped block 38 is made of wear-resistant rubber material, and the contact block 36 is made of elastic material. During the insertion and use of the pin, they can play a buffering and protective role, preventing the pin from causing damage to the inner wall of the pin hole 34 and itself, and further improving the reliability and durability of the pin.

[0066] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A switching power supply testing device, comprising a testing device (1) for target testing, an enclosing cover (2) is arranged on the outer side of the testing device (1), the enclosing cover (2) is located on the outer side of the testing target, a straightening assembly (3) is arranged on the inner side of the enclosing cover (2) below the testing device (1), and the straightening assembly (3) is matched with the probe of the testing device (1); characterized in that: the straightening assembly (3) is sleeved with the probe of the testing device (1) through a connecting piece (4) for protecting the probe; the straightening assembly (3) comprises a cylinder (31), the inner side of the cylinder (31) is provided with a pin hole (34), the inner side of the pin hole (34) is provided with a contact block (36) arranged at a preset angle, one end of the contact block (36) is provided with a metal block (310), and the metal block (310) is in contact with the outer side of the probe of the testing device (1). one or more positioning convex columns (33) arranged in a ring array are arranged on the top of the cylinder (31), the top of the positioning convex column (33) is matched with the connecting piece (4) for fixing the cylinder (31).

2. The switching power supply testing device of claim 1, wherein: a convex ring is arranged on the outer side of the positioning convex column (33) on the top of the cylinder (31), and the inner diameter of the convex ring is provided with one or more communication ports (37).

3. The switching power supply testing device of claim 1, wherein: the positioning convex column (33) and the convex ring are matched with the connecting piece (4) for fixing the cylinder (31).

4. The switching power supply testing device of claim 2, wherein: one end of the communication port (37) extends to the inner side of the pin hole (34), and an arc-shaped block (38) is arranged at the extending end, the arc-shaped block (38) is one or more and arranged in a ring array.

5. The switching power supply testing device of claim 3, wherein: the inner side of the arc-shaped block (38) is provided with a cavity, and the outer side arc-shaped edge is provided with dust suction ports (32) arranged at equal distances, the dust suction ports (32) are matched with the communication ports (37).

6. The switching power supply testing device of claim 5, wherein: one or more supporting rods (39) are arranged in a ring array on the inner side of the pin hole (34), and one end of the supporting rod (39) is provided with the contact block (36).

7. The switching power supply testing device of claim 1, wherein: the supporting rod (39) is arranged at a preset angle and inclined, and a plurality of the supporting rods (39) form a conical shape for limiting the pin of the testing device (1).

8. The switching power supply testing device of claim 7, wherein: ​

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