Thermal component assembling quality detection device
By designing a thermal component assembly quality inspection device, the problem of delayed identification of the performance quality control of thermal components in PCR instruments was solved, enabling rapid and accurate defect detection and improving production efficiency.
Patent Information
- Application Number
- CN202520622777.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-03
AI Technical Summary
In the current technology, the performance quality control of the thermal components of PCR instruments mainly relies on manual visual inspection or simple multimeter testing, which cannot effectively evaluate key indicators such as temperature gradient and uniformity. This leads to delayed fault identification and high rework intensity, affecting production efficiency.
A thermal component assembly quality inspection device was designed, including a chamber, a thermal component placement position, a heat cover clamping structure, a main control board, a power supply box, and a heat dissipation device. By simulating the operating environment of the thermal component, it realizes temperature data acquisition and analysis, detects assembly defects, and provides rapid feedback.
It enables rapid and accurate testing of thermal components, improves the quality inspection capabilities of the production line, reduces rework intensity, and increases production efficiency.
Smart Images
Figure CN223841489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing tooling technology, specifically to a device for testing the assembly quality of thermal components. Background Technology
[0002] With the continuous iteration and upgrading of PCR instruments, product design increasingly emphasizes miniaturization, speed, lightweighting, and precision, resulting in a more compact assembly space for internal components. Currently, the performance quality control of thermal components in PCR instruments mainly relies on manual visual inspection or simple multimeter testing. This method can only verify the connection of basic components and cannot assess anomalies in key thermal performance indicators such as temperature gradient and temperature uniformity. These anomalies are usually only identified during the final product debugging process. Once a fault is identified, rework is required, necessitating the removal of related components, increasing rework intensity and impacting production efficiency. Therefore, pre-testing the thermal performance of PCR instrument thermal components before final instrument assembly is crucial. Utility Model Content
[0003] The purpose of this invention is to provide a thermal component assembly quality inspection device to address the aforementioned problems. This device collects and analyzes temperature data of the thermal components, thereby enabling the detection of assembly defects in the thermal components.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A thermal component assembly quality inspection device, the inspection device comprising:
[0006] Warehouse body;
[0007] A thermal component placement position is movably connected to the bottom of the inner side of the chamber and is used to receive the thermal component.
[0008] A hot cap clamping structure includes a driving member disposed on the top of the chamber. The driving member is connected to a hot cap opposite to the thermal component via a clamping member. The driving member can drive the clamping member to move toward the thermal component and apply a clamping force to the thermal component through the hot cap.
[0009] The main control board, wherein the thermal component is at least partially electrically connected to the main control board, and the thermal performance detection signal of the thermal component is transmitted to the main control board through the electrical connection;
[0010] A power supply box is disposed inside the chamber and is used to provide power to the detection device.
[0011] Furthermore, the thermal component placement area includes a drawer located at the bottom of the chamber, with both sides of the drawer slidably connected to the side panels of the chamber. The front end of the drawer is also provided with a first handle, and a support frame is provided inside the drawer for placing the thermal component.
[0012] Furthermore, the end face of the compartment body that is close to the first handle is movably connected to the bottom of the compartment body for the displacement of the drawer. That is, the compartment body provides an openable working surface for providing a passage for the displacement of the drawer, and a second handle is also provided on the outer side of the end face.
[0013] Furthermore, a slot is provided on the side of the support frame away from the drawer, the slot being used to fit the thermal component.
[0014] Furthermore, a limiting pin is provided at the bottom of the compartment near the rear end of the drawer, which is used to limit the position of the drawer.
[0015] Furthermore,
[0016] The clamping element includes:
[0017] An arc-shaped plate is provided, with both ends connected to the top of the hopper body and mounted on the outer side of the top of the hopper body. Below the arc-shaped plate is a middle plate parallel to the hot cover. Below the arc-shaped plate, two guide rods are perpendicularly spaced and pass through the middle plate, fitting with it in a clearance manner. The middle plate is connected to the hot cover by a screw, which is parallel to the guide rods and movably connected to the middle plate. A spring is fitted onto the screw.
[0018] A movable shaft passes sequentially through the web and intermediate plate of the bow-shaped plate and connects to the intermediate plate. The movable shaft is clearance-fitted with the web of the bow-shaped plate and extends out of the bow-shaped plate. One end of the movable shaft extending out of the bow-shaped plate is movably connected to the driving component. The driving component drives the movable shaft to move the intermediate plate along the screw, pressing down the spring to apply a clamping force to the hot cover. Furthermore, a window is provided at the top of the compartment to facilitate the movement of the hot cover clamping structure.
[0019] Furthermore, the movable shaft is located at the center of the bow-shaped plate and the intermediate plate, and there are two screws, which are symmetrically arranged with the movable shaft as the axis of symmetry.
[0020] Furthermore, the detection device also includes a heat dissipation device;
[0021] The heat dissipation device includes a cooling fan, which is located on the plate surface opposite the movable end face.
[0022] Furthermore, the testing device also includes a test computer, which is signal-connected to the thermal component and the main control board, and is used to test the thermal performance of the thermal component.
[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0024] 1. This utility model discloses a thermal component assembly quality inspection device. By simulating the operating environment of thermal components, a rapid testing fixture for thermal components is built. The device collects and analyzes temperature data of thermal components, enabling the detection, classification, and feedback of assembly defects. This helps the production line quickly identify whether products are assembled according to process requirements and improves the quality inspection capability of thermal components.
[0025] 2. The thermal component assembly quality inspection device of this utility model has a simple and practical structure, and is convenient to use and maintain. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of the chamber in a thermal component assembly quality inspection device of this utility model;
[0027] Figure 2 This is a schematic diagram of the thermal component placement position in a thermal component assembly quality inspection device of this utility model;
[0028] Figure 3 This is a schematic diagram of the hot cover pressing structure in a thermal component assembly quality inspection device of this utility model;
[0029] Figure 4 This is a schematic diagram showing the state of the hot cover pressing structure applying pressing force in a thermal component assembly quality inspection device of this utility model;
[0030] Figure 5 This is a schematic diagram of the state of a thermal component assembly quality inspection device of this utility model being installed in a thermal component;
[0031] Figure 6 This is a schematic diagram of a thermal component assembly quality testing device according to the present invention, showing the state of the thermal component during testing.
[0032] Figure 7 This is a connection diagram of a thermal component assembly quality inspection device according to this utility model.
[0033] In the diagram: 1 - the compartment;
[0034] 2-Thermal component placement area, 21-Drawer, 22-Slide rail, 23-Pin, 24-Support bracket, 25-Hollowed groove, 26-First handle;
[0035] 3-Heat cover clamping structure, 31-Handle, 32-Arch-shaped plate, 33-Intermediate plate, 34-Heat cover, 35-Guide rod, 36-Screw, 37-Spring, 38-Modular shaft;
[0036] 4-Power supply box; 5-Main control board; 6-Cooling fan; 7-Socket; 8-Limit pin; 9-Second handle; 10-Test computer; 11. Thermal components. Detailed Implementation
[0037] The present invention will now be described in detail with reference to the accompanying drawings.
[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0039] Example
[0040] This utility model provides a device for inspecting the assembly quality of thermal components, such as... Figure 1 As shown, the enclosure includes a chamber 1. In this embodiment, the chamber 1 is a rectangular enclosure formed by six plates: front, back, left, right, top, and bottom. A thermal component placement area 2 is provided inside the chamber 1, as shown... Figure 2 As shown, the thermal component placement position 2 includes a drawer 21. The two sides of the drawer 21 are slidably connected to the inner sides of the left and right panels of the compartment 1 via slide rails 22. The surface of the drawer 21 is provided with pins 23. The support frame 24 is fixed to the drawer 21 by the pins 23. The front end of the drawer 21 is provided with a first handle 26.
[0041] like Figure 3 As shown, a hot cover clamping structure 3 is provided on the top plate of the chamber 1, including a manually driven drive and a clamping component that can be displaced to the thermal component through the hot cover and apply clamping force. The clamping component includes a movable shaft 38, an arc-shaped plate 32, an intermediate plate 33 and a hot cover 34. The arc-shaped plate 32 is mounted on the outside of the top plate of the chamber 1 through its two end plates. Below the arc-shaped plate 32, the intermediate plate 33 and the hot cover 34 are arranged in sequence parallel to the top plate of the chamber 1. Two guide rods 35 are arranged at intervals on the bottom surface of the arc-shaped plate 32. The guide rods 35 are perpendicular to the web of the arc-shaped plate 32. The intermediate plate 33 passes through the guide rods 35 and is connected to the hot cover 34 through two screws 36. A spring 37 is sleeved on each screw 36. The movable shaft 38 passes through the center of the arc-shaped plate 32 and the intermediate plate 33 and is fixed to the intermediate plate 33 by a nut.
[0042] In this embodiment, the driving component includes a handle 31, which is rotatably connected above the end of the movable shaft 38 extending from the end of the bow-shaped plate 32. The movable shaft 38 is located on the rotation path of the handle 31. Specifically, when the handle 31 rotates, the movable shaft 38 will form a resistance to the rotation of the handle 31. The handle 31 continues to rotate, squeezing the movable shaft 38, thereby causing the movable shaft 38 to shift along its set direction.
[0043] Specifically, such as Figure 3 , Figure 4 As shown, the operating principle of the hot cover pressing structure 3 in this embodiment is as follows: When the handle 31 moves from the horizontal to the vertical direction, the handle 31 will squeeze the movable shaft 38. The movable shaft 38 will move along its axial direction due to the squeezing of the handle 31. The guide rod 35 is movably connected to the intermediate plate 33. The movable shaft 38 will drive the intermediate plate 33 and the hot cover 34 to press down. The guide rod 35 provides a guiding function. When the hot cover 34 contacts the thermal component, since the screw 36 is movably set through the intermediate plate 33, the movable shaft 38 will drive the intermediate plate 33 to press down. As plate 33 continues to press down, screw 36 also acts as a guide. Spring 37, which is sleeved on screw 36, applies pressure to hot cover 34, thereby applying clamping force to the thermal assembly. When handle 31 is rotated horizontally, movable shaft 38 loses force, and spring 37 resets. In this embodiment, the elastic coefficient of spring 37 is 14.5 N / mm to 15 N / mm, preferably 14.9 N / mm. When the spring resets, it lifts the intermediate plate 33, thereby restoring the hot cover clamping structure 3 to its original state.
[0044] As the driving part of the movable shaft 38, the driving component can be driven by a cylinder, in addition to the driving method provided in this embodiment. The cylinder outputs pressure to the movable shaft to drive the movable shaft to move. Alternatively, a lead screw coaxial with the movable shaft can be mounted on the top of the movable shaft. The lead screw rotates through a threaded structure to adjust the distance between the lead screw and the movable shaft, and pressure is transmitted by pressing down on the lead screw. Therefore, the working principle of the clamping component is to provide downward pressure to the movable shaft. Any device that can achieve this principle can be a clamping component.
[0045] A limiting pin 8 is provided on the bottom plate of the compartment 1 near the rear end of the drawer 21. The limiting pin 8 is used to limit the distance that the drawer 21 extends into the compartment 1, thereby limiting the position of the thermal component placement position 2. When the thermal component is placed on the hollow slot 25 of the support frame 24, the drawer 21 is pushed, and the limiting pin 8 can stop the drawer 21 when it travels to a fixed position.
[0046] The front panel of compartment 1 is movably connected to the bottom panel. When drawer 21 needs to be pulled out, the front panel of compartment 1 can be opened to be flush with the bottom panel, which facilitates the pulling out and pushing in of the thermal component placement position 2.
[0047] The front panel of the compartment 1 is equipped with a second handle 9, which makes it easy to open the rectangular compartment 1 and place the thermal components.
[0048] A cooling fan 6 is installed on the rear panel of the chamber 1 for heat exchange inside the rectangular chamber, simulating the actual working scenario of the thermal components.
[0049] A socket 7 is also provided on the rear panel of the compartment 1. The socket 7 is connected to the power box 4 to provide power.
[0050] The specific usage process of the thermal component assembly quality inspection device provided in this embodiment is as follows:
[0051] When using, such as Figure 5 As shown, firstly, open the rectangular compartment 1 using the second handle 9 on the front panel, and pull out the drawer 21 using the first handle 26, thereby pulling out the thermal component placement position 2 from the rectangular compartment. Place the thermal component to be tested onto the slot 25 of the support frame 24, and position the thermal component by the slot 25. Insert the temperature measuring probe into the temperature block hole of the thermal component, and connect the thermal component and the temperature measuring instrument using the wiring harness at the bottom of the drawer 21. Figure 6 and Figure 7 As shown, the wiring harness is then connected to the main control board 5 and the test computer 10 to facilitate the main control board 5's control of the thermal component 11 and to transmit the analysis signal to the test computer 10. Next, the thermal component placement position 2 is pushed into the rectangular compartment until the drawer 21 contacts the limit pin 8 on the bottom plate. At this point, the thermal component 11 has reached the preset position. Then, the front panel of the compartment 1 is closed, and the handle 31 of the hot cover pressing structure 3 rotates to press the movable shaft 38. The movable shaft 38 drives the intermediate plate 33 and the hot cover 34 to move downward. When the hot cover 34 contacts the hot block of the thermal component, the intermediate plate 33 will continue to move downward and press the spring 37, so that the hot cover 34 and the thermal component generate heat. A clamping force is applied, which can be adjusted by adjusting the rotation angle of the handle 31, so that the heat cover 34 fits tightly against the temperature block of the thermal component. The test computer 10 and power box 4 are turned on in sequence, and the test software is started. The test software controls the thermal component to complete the heating and cooling process according to the set program. At the same time, the temperature of the entire process is collected by a thermometer and compared with the temperature set by the test software. The temperature compensation parameters of the thermal component are obtained. After the temperature compensation parameters are read into the test software, the predetermined temperature running program is used to verify and confirm whether the accuracy and consistency of the thermal component can meet the technical specifications, thereby screening out unqualified thermal components.
[0052] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
[0053] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They 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. Therefore, they should not be construed as limitations on this utility model.
[0054] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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.
Claims
1. A device for inspecting the assembly quality of thermal components, characterized in that, The detection device includes: Warehouse body; A thermal component placement position is movably connected to the bottom of the inner side of the chamber and is used to receive the thermal component. A hot cap clamping structure includes a driving member disposed on the top of the chamber. The driving member is connected to a hot cap opposite to the thermal component via a clamping member. The driving member can drive the clamping member to move toward the thermal component and apply a clamping force to the thermal component through the hot cap. The thermal components are at least partially electrically connected to the main control board; A power supply box is disposed inside the chamber and is used to provide power to the detection device.
2. The thermal component assembly quality inspection device according to claim 1, characterized in that, The thermal component placement area includes a drawer located at the bottom of the chamber, with the drawer slidably connected to the side panels of the chamber on both sides. The front end of the drawer is also provided with a first handle, and a support frame is provided inside the drawer for placing the thermal component.
3. The thermal component assembly quality inspection device according to claim 2, characterized in that, The end face of the compartment body that is close to the first handle is movably connected to the bottom of the compartment body for the displacement of the drawer, and a second handle is also provided on the outer side of the end face.
4. The thermal component assembly quality inspection device according to claim 2, characterized in that, The support frame has a perforated groove on the side away from the drawer, and the perforated groove is used to fit the thermal component.
5. The thermal component assembly quality inspection device according to claim 2, characterized in that, The bottom of the compartment is also provided with a limiting pin near the rear end of the drawer, which is used to limit the position of the drawer.
6. The thermal component assembly quality inspection device according to claim 1, characterized in that, The clamping element includes: An arc-shaped plate is provided, with both ends connected to the top of the hopper body and mounted on the outer side of the top of the hopper body. Below the arc-shaped plate is a middle plate parallel to the hot cover. Below the arc-shaped plate, two guide rods are perpendicularly spaced and pass through the middle plate, fitting with it in a clearance manner. The middle plate is connected to the hot cover by a screw, which is parallel to the guide rods and movably connected to the middle plate. A spring is fitted onto the screw. A movable shaft passes sequentially through the web of the bow-shaped plate and the intermediate plate and is connected to the intermediate plate. The movable shaft is in clearance fit with the web of the bow-shaped plate and extends out of the bow-shaped plate. One end of the movable shaft extending out of the bow-shaped plate is movably connected to the driving member. The driving member is used to drive the movable shaft to drive the intermediate plate to press down the spring along the screw to apply a clamping force to the hot cover.
7. The thermal component assembly quality inspection device according to claim 6, characterized in that, The top of the compartment has a window for operation in conjunction with the hot-cover clamping structure.
8. The thermal component assembly quality inspection device according to claim 6, characterized in that, The movable shaft is located at the center of the bow-shaped plate and the intermediate plate. There are two screws, and the two screws and two guide rods are symmetrically arranged about the movable shaft as the axis of symmetry.
9. The thermal component assembly quality inspection device according to claim 1, characterized in that, The detection device also includes a heat dissipation device; The heat dissipation device includes a cooling fan, which is located on the plate surface opposite the movable end face.
10. The thermal component assembly quality inspection device according to claim 1, characterized in that, The testing device also includes a test computer, which is connected to the thermal component and the main control board for testing the thermal performance of the thermal component.