Test furnace for testing power supply circuit board
By designing a test furnace for testing power circuit boards, the problems of limited circuit board position adjustment and dust adhesion on the observation window were solved, achieving uniform heating and clear observation, thus improving test accuracy and user experience.
Patent Information
- Application Number
- CN202423032090.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-10
AI Technical Summary
The existing testing equipment has a simple structure for supporting the circuit board, which makes it difficult to adjust the position and leads to uneven heating, affecting the accuracy of the test; the closed structure results in large heat loss and dust accumulation on the observation window, affecting the user experience.
A test furnace was designed, which includes an attitude adjustment component, a clamping mechanism, an observation window, and a cleaning mechanism. The attitude adjustment component adjusts the position of the circuit board to ensure thermal balance, and the observation window is used to observe the internal situation. At the same time, the cleaning mechanism cleans the observation window to prevent dust from adhering.
It improves the accuracy of circuit board testing and user experience, ensures uniform heating through the attitude adjustment component, provides high clarity of the observation window, and effectively prevents dust contamination through the cleaning mechanism.
Smart Images
Figure CN223796643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing technology, and in particular to a test furnace for testing power circuit boards. Background Technology
[0002] Printed circuit boards (PCBs) are a crucial component of electronic devices. Their core function is to provide electrical connection paths for electronic components. By etching conductive lines onto an insulating substrate, they connect various electronic components (such as resistors, capacitors, and chips) according to a designed circuit diagram, allowing current to flow orderly between components and thus enabling the various functions of the electronic device. Generally, LED lights have a starting power supply, which in turn has a PCB (some other power supplies also have PCBs). Testing requires evaluating the PCB's operation and performance at 40 or 45 degrees Celsius. Existing PCB testing equipment can generally meet daily usage needs; however, the structure supporting the PCB in these devices is relatively simple, making it difficult to adjust the PCB's position during testing. Limited by the PCB's placement environment, uneven heating of the entire board can affect testing accuracy. Furthermore, most testing equipment uses an integrated steel plate for enclosure to reduce heat loss during testing, making it impossible to observe the internal workings. Adding an observation window can easily lead to dust accumulation inside, which is difficult to clean, thus affecting the user experience. Therefore, designing a testing furnace for testing power supply PCBs is essential. Summary of the Invention
[0003] The purpose of this invention is to provide a test furnace for testing power circuit boards, which solves the problems of existing test devices having relatively simple structures for supporting circuit boards, making it difficult to adjust the position of the circuit boards during testing, and being limited by the placement environment of the circuit boards, resulting in uneven heating of the entire board and affecting the accuracy of the test; at the same time, most test devices use integrated steel plates for enclosure to reduce heat loss during the test, making it impossible to observe the internal situation, and adding observation windows makes it easy for dust to accumulate inside and be difficult to clean, thus affecting the user experience.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a test furnace for testing power circuit boards, comprising a furnace body, a test chamber, an attitude adjustment component, a clamping mechanism, a flip door, an observation window, a cleaning mechanism, a control box, and an arc-shaped baffle. The test chamber is provided inside the furnace body. A lifting guide rail of the attitude adjustment component is provided on one side of the test chamber. A lifting cylinder is provided on the lifting guide rail. Push cylinders are symmetrically arranged on both sides of the lifting cylinder. The output end of the push cylinder is fixedly connected to both sides of the rotary motor, and the output end of the rotary motor is fixedly connected to the mounting frame. Square platforms are symmetrically arranged on the mounting frame. A connecting rack is slidably connected in the square platform. The connecting rack is fixed on the clamping cylinder. The output end of the clamping cylinder is pressed tightly against the clamping plate in the clamping mechanism. A flip door is rotatably connected to the furnace body. An observation window is embedded in a groove opened at the top of the flip door. A cleaning motor of the cleaning mechanism is symmetrically arranged on the observation window. The output end of the cleaning motor passes through the flip door and is fixedly connected to a support column. A conveyor belt is wound around the support column. Cleaning racks are symmetrically arranged on the conveyor belt.
[0005] As a further technical solution of this utility model, the attitude adjustment component consists of a clamping cylinder, a lifting guide rail, a lifting cylinder, a pushing cylinder, a rotary motor, a mounting frame, a square platform, a central motor, a transmission gear, and a connecting rack, with the connecting rack meshing with the transmission gear.
[0006] As a further technical solution of this utility model, the transmission gear is rotatably connected in a square platform, and a central motor is fixedly connected to the square platform, with the output end of the central motor fixedly sleeved on the transmission gear.
[0007] As a further technical solution of this utility model, the clamping mechanism consists of a clamping plate, a first bracket, a second bracket, a screw, a fixing nut, and a bottom support. The clamping plate is fixed on the first bracket, and the first bracket is sleeved on one side of the circuit board. The bottom support is fixed to the bottom of the test chamber.
[0008] As a further technical solution of this utility model, the first bracket is symmetrically provided with screws, the screws are sleeved in the through holes opened on the second bracket, and a fixing nut is connected to the screw, the fixing nut is pressed tightly on the second bracket, and the second bracket is sleeved on the other side of the circuit board.
[0009] As a further technical solution of this utility model, the cleaning mechanism consists of a cleaning motor, a support column, a conveyor belt and a cleaning frame, with the cleaning frame pressed tightly against the observation window.
[0010] As a further technical solution of this utility model, a control box is provided on one side of the furnace body, and a locking cylinder is embedded in the control box. The output end of the locking cylinder is pressed tightly against the flip door. A square groove is provided at the bottom of the flip door, and an arc-shaped baffle is fixedly connected to the side of the bottom of the flip door near the square groove.
[0011] The testing furnace for testing power circuit boards provided by this utility model has the following advantages: First and second supports are pressed tightly against both sides of the circuit board by fixing nuts on the screws, and the circuit board is placed inside the test chamber by bottom support. During testing, the flip door is closed, and the locking cylinder in the control box presses the flip door tightly to seal it. Then, the temperature inside the test chamber is adjusted by the control box, while a pushing cylinder pushes a rotary motor and mounting bracket closer to the circuit board. A clamping cylinder, symmetrically distributed above and below, presses against the clamping plate for fixation. Before clamping, a central motor drives a transmission gear to rotate, and the meshing of the transmission gear and connecting rack adjusts the position of the clamping cylinder. Subsequently, a lifting cylinder moves the circuit board up and down along the lifting guide rail, while the rotary motor flips the circuit board on the mounting bracket, automatically adjusting the board's posture and position to ensure thermal balance during testing, thus improving testing accuracy. During testing, the internal condition is observed through an observation window. Simultaneously, a cleaning motor drives a conveyor belt to reciprocate via a support column, and a cleaning rack in the conveyor belt cleans the inner wall of the observation window, preventing dust adhesion and ensuring clear observation, thereby improving the user experience. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a three-dimensional view of the overall structure of this utility model;
[0014] Figure 2 This is a three-dimensional view of part of the structure of this utility model;
[0015] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;
[0016] Figure 4 This is a partial structural schematic diagram of the present invention.
[0017] In the diagram: 1. Furnace body; 2. Test chamber; 3. Attitude adjustment assembly; 4. Clamping mechanism; 5. Flip-over door; 6. Observation window; 7. Cleaning mechanism; 8. Control box; 9. Arc-shaped baffle; 30. Clamping cylinder; 31. Lifting guide rail; 32. Lifting cylinder; 33. Pushing cylinder; 34. Rotary motor; 35. Mounting frame; 36. Square platform; 37. Central motor; 38. Transmission gear; 39. Connecting rack; 41. Clamping plate; 42. First bracket; 43. Second bracket; 44. Screw; 45. Fixing nut; 46. Bottom support; 71. Cleaning motor; 72. Support column; 73. Conveyor belt; 74. Cleaning rack. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] 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.
[0020] Please see the appendix Figure 1 -Appendix Figure 4This utility model provides an embodiment of a test furnace for testing power circuit boards, comprising a furnace body 1, a test chamber 2, an attitude adjustment assembly 3, a clamping mechanism 4, a flip door 5, an observation window 6, a cleaning mechanism 7, a control box 8, and an arc-shaped baffle 9. The test chamber 2 is located inside the furnace body 1. A lifting guide rail 31 from the attitude adjustment assembly 3 is located on one side of the test chamber 2. A lifting cylinder 32 is mounted on the lifting guide rail 31. Pushing cylinders 33 are symmetrically arranged on both sides of the lifting cylinder 32. The output ends of the pushing cylinders 33 are fixedly connected to both sides of a rotary motor 34, and the output ends of the rotary motor 34 are fixedly connected to a mounting frame 35. Square platforms 36 are symmetrically arranged on the mounting frame 35. A connecting rack 39 is slidably connected to the 36th section. The connecting rack 39 is fixed on the clamping cylinder 30. The output end of the clamping cylinder 30 is pressed tightly against the clamping plate 41 in the clamping mechanism 4. A flip door 5 is rotatably connected to the furnace body 1. An observation window 6 is embedded in a groove at the top of the flip door 5. A cleaning motor 71 from the cleaning mechanism 7 is symmetrically arranged on the observation window 6. The output end of the cleaning motor 71 passes through the flip door 5 and is fixedly connected to the support column 72. A conveyor belt 73 is wound around the support column 72. Cleaning racks 74 are symmetrically arranged on the conveyor belt 73. The attitude adjustment component 3 consists of a clamping cylinder 30, a lifting guide rail 31, a lifting cylinder 32, a pushing cylinder 33, a rotary motor 34, a mounting frame 35, and a square The circuit board is composed of a square platform 36, a central motor 37, a transmission gear 38, and a connecting rack 39. The connecting rack 39 meshes with the transmission gear 38. The transmission gear 38 is rotatably connected in the square platform 36, and the central motor 37 is fixedly connected to the square platform 36. The output end of the central motor 37 is fixedly sleeved on the transmission gear 38. The clamping mechanism 4 is composed of a clamping plate 41, a first bracket 42, a second bracket 43, a screw 44, a fixing nut 45, and a bottom support 46. The clamping plate 41 is fixed on the first bracket 42, which is sleeved on one side of the circuit board. The bottom support 46 is fixed to the bottom of the test chamber 2. Screws 44 are symmetrically arranged on the first bracket 42 and are sleeved on the second bracket 43. A fixing nut 45 is connected to the screw 44 through the hole on the bracket 43. The fixing nut 45 is pressed tightly on the second bracket 43, which is sleeved on the other side of the circuit board. The cleaning mechanism 7 consists of a cleaning motor 71, a support column 72, a conveyor belt 73, and a cleaning frame 74. The cleaning frame 74 is pressed tightly on the observation window 6. A control box 8 is set on one side of the furnace body 1. A locking cylinder is embedded in the control box 8. The output end of the locking cylinder is pressed tightly on the flip door 5. A square groove is set at the bottom of the flip door 5, and an arc-shaped baffle 9 is fixedly connected to the side of the bottom of the flip door 5 near the square groove. The square groove facilitates the connection of the power line, while the arc-shaped baffle 9 blocks dust and water.
[0021] Specifically, in use, the first bracket 42 and the second bracket 43 are pressed tightly against both sides of the circuit board by the fixing nut 45 on the screw 44, and placed inside the bottom of the test chamber 2 by the bottom support 46. During the test, the flip door 5 is closed and the locking cylinder in the control box 8 presses the flip door 5 tightly to seal it. Then, the temperature in the test chamber 2 inside the furnace body 1 is adjusted by the control box 8. At the same time, the pushing cylinder 33 pushes the rotary motor 34 and the mounting bracket 35 closer to the circuit board. The clamping cylinders 30, which are symmetrically distributed on the upper and lower sides, press the clamping plate 41 to fix it. Before clamping, the central motor 37 drives the transmission gear 38 to rotate, and the transmission gear 38 and the connecting... The meshing action of the rack 39 adjusts the position of the clamping cylinder 30. Subsequently, the lifting cylinder 32 drives the circuit board to move up and down along the lifting guide rail 31. At the same time, the rotary motor 34 drives the circuit board on the mounting bracket 35 to flip, automatically adjusting the posture and position of the board to ensure thermal balance during the test, thereby improving the accuracy of the test. During the test, the internal condition is observed through the observation window 6. Meanwhile, the cleaning motor 71 drives the conveyor belt 73 to reciprocate through the support column 72. The cleaning frame 74 in the conveyor belt 73 cleans the inner wall of the observation window 6 to prevent dust from adhering and ensure the clarity of the observation, thereby improving the user experience.
[0022] 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.
[0023] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A test furnace for testing power circuit boards, comprising a furnace body (1), a test chamber (2), an attitude adjustment assembly (3), a clamping mechanism (4), a flip door (5), an observation window (6), a cleaning mechanism (7), a control box (8), and an arc-shaped baffle (9), characterized in that: The furnace body (1) is equipped with a test chamber (2). A lifting guide rail (31) of the attitude adjustment component (3) is provided on one side of the test chamber (2). A lifting cylinder (32) is provided on the lifting guide rail (31). Pushing cylinders (33) are symmetrically arranged on both sides of the lifting cylinder (32). The output end of the pushing cylinder (33) is fixedly connected to both sides of the rotary motor (34), and the output end of the rotary motor (34) is fixedly connected to the mounting frame (35). A square platform (36) is symmetrically arranged on the mounting frame (35). A connecting rack (39) is slidably connected in the square platform (36). The rack (39) is fixed on the clamping cylinder (30). The output end of the clamping cylinder (30) is pressed tightly on the clamping plate (41) in the clamping mechanism (4). The furnace body (1) is rotatably connected to the flip door (5). The observation window (6) is embedded in the groove opened at the top of the flip door (5). The cleaning motor (71) in the cleaning mechanism (7) is symmetrically arranged on the observation window (6). The output end of the cleaning motor (71) passes through the flip door (5) and is fixedly connected to the support column (72). The support column (72) is wound with a conveyor belt (73). The cleaning rack (74) is symmetrically arranged on the conveyor belt (73).
2. The test furnace for testing power circuit boards according to claim 1, characterized in that: The attitude adjustment component (3) consists of a clamping cylinder (30), a lifting guide rail (31), a lifting cylinder (32), a pushing cylinder (33), a rotary motor (34), a mounting frame (35), a square platform (36), a central motor (37), a transmission gear (38), and a connecting rack (39), with the connecting rack (39) meshing with the transmission gear (38).
3. The test furnace for testing power circuit boards according to claim 2, characterized in that: The transmission gear (38) is rotatably connected in the square platform (36), and a central motor (37) is fixedly connected on the square platform (36). The output end of the central motor (37) is fixedly sleeved on the transmission gear (38).
4. The test furnace for testing power circuit boards according to claim 1, characterized in that: The clamping mechanism (4) consists of a clamping plate (41), a first bracket (42), a second bracket (43), a screw (44), a fixing nut (45), and a bottom support (46). The clamping plate (41) is fixed on the first bracket (42), which is sleeved on one side of the circuit board. The bottom support (46) is fixed inside the bottom of the test chamber (2).
5. The test furnace for testing power circuit boards according to claim 4, characterized in that: The first bracket (42) is symmetrically provided with screws (44), which are sleeved in the through holes opened on the second bracket (43). A fixing nut (45) is connected to the screw (44), and the fixing nut (45) is pressed tightly on the second bracket (43). The second bracket (43) is sleeved on the other side of the circuit board.
6. The test furnace for testing power circuit boards according to claim 1, characterized in that: The cleaning mechanism (7) consists of a cleaning motor (71), a support column (72), a conveyor belt (73), and a cleaning frame (74), which is pressed tightly against the observation window (6).
7. The test furnace for testing power circuit boards according to claim 1, characterized in that: A control box (8) is provided on one side of the furnace body (1). A locking cylinder is embedded in the control box (8). The output end of the locking cylinder is pressed tightly against the flip door (5). A square groove is provided at the bottom of the flip door (5), and an arc-shaped baffle (9) is fixedly connected to the side of the bottom of the flip door (5) near the square groove.