SMD crystal oscillator power-up aging device

Abstract

The utility model discloses an SMD crystal oscillator power-up aging device, and belongs to the technical field of SMD crystal oscillator detection. The SMD crystal oscillator power-up aging device comprises a test box, a temperature sensor is installed in the test box, a heater is fixed to the test box, the output end of the heater is communicated with the test box, a PLC is fixed to the top of the test box, and the PLC is electrically connected with the temperature sensor and the heater. A box cover is arranged on the front side surface of the test box, a filter box is fixed on the test box, and a suction mechanism for sucking peculiar smell in the test box into the filter box is arranged on the test box; according to the SMD crystal oscillator aging test device, due to the arrangement of the filter box and the suction mechanism, after an SMD crystal oscillator aging test is completed, peculiar smell generated by high temperature in the test box can be sucked into the filter box in time, the peculiar smell is prevented from remaining in the test box, and the follow-up test is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of SMD crystal oscillator detection, in particular to an SMD crystal oscillator power-on aging device. Background Art

[0002] SMD crystal oscillator is a surface mounted crystal oscillator, usually used in electronic equipment to provide accurate clock signals. Compared with traditional crystal oscillators, SMD crystal oscillators have the advantages of small size, light weight, and easy installation. Therefore, they are widely used in modern electronic products. In order to ensure the stability and reliability of the crystal, it is necessary to perform aging tests through powered aging devices to verify whether its performance still meets the requirements after long-term use. Therefore, the aging device can simulate long-term use under different environmental conditions, such as temperature detection. The specific steps are to place the SMD crystal oscillator in the box to increase the temperature inside the box to detect the performance of the SMD crystal oscillator at different temperatures. Power-on mainly refers to detection through external power supply.

[0003] However, after the current aging device is tested, the high temperature required for the test may cause chemical reactions in the materials in the box in the surrounding area, resulting in some odor. The odor will remain in the box and affect the subsequent tests, and may even affect the test results of other equipment or samples.

[0004] Therefore, in response to this problem, the utility model provides an SMD crystal oscillator power-on aging device. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that after the test, due to the high temperature required for the test, the surrounding area may produce some odors due to chemical reactions in the box due to the materials in the box, and the odors will remain in the box, affecting the subsequent tests and even affecting the test results of other equipment or samples. The SMD crystal oscillator power-on aging device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The SMD crystal oscillator powered aging device comprises a test box, a temperature sensor is installed in the test box, a heater is fixed on the test box, the output end of the heater is connected to the test box, a PLC controller is fixed on the top of the test box, the PLC controller is electrically connected to the temperature sensor and the heater, a box cover is opened on the front side of the test box, a filter box is fixed on the test box, a suction mechanism for absorbing odor in the test box into the filter box is arranged on the test box, and a filter mechanism for absorbing odor is arranged in the filter box.

[0008] Preferably, the suction mechanism comprises a suction fan fixed on the test box, the top of the test box is connected to a connecting pipe, the suction end of the suction fan is connected to the connecting pipe through an air inlet pipe, and the air outlet end of the suction fan is connected to a filter box.

[0009] Preferably, the suction mechanism further comprises a mounting groove provided on the top of the filter box, a mounting frame being embedded and installed in the mounting groove, an activated carbon adsorption net being fixed in the mounting frame, and an exhaust pipe being connected to a side of the filter box away from the suction fan.

[0010] Preferably, the filtering mechanism comprises a fixing bar fixed on the top of the filtering box, cross bars are fixed on both sides of the fixing bar, the cross bars correspond to the positions of the mounting frame, and a movable bar is slidably disposed on the outer surface of the cross bars.

[0011] Preferably, the filtering mechanism further comprises a return spring sleeved on the outer surface of the cross bar, and two ends of the return spring are respectively fixedly connected to the fixed bar and the movable bar.

[0012] Preferably, the filtering mechanism further comprises an insertion rod fixed to the side of the moving strip, and a fixing hole is provided on the mounting frame, and the insertion rod slides in the fixing hole.

[0013] Compared with the prior art, the utility model provides an SMD crystal oscillator power-on aging device, which has the following beneficial effects:

[0014] The SMD crystal oscillator powered aging device, through the setting of the filter box and the suction mechanism, can promptly absorb the odor generated by the high temperature in the test box into the interior of the filter box after the SMD crystal oscillator aging test is completed, so as to avoid the odor remaining in the test box and affecting the subsequent tests. The installation frame and the activated carbon adsorption net can be set to absorb and filter the odor, so as to avoid the odor being directly discharged into the external environment and affecting the working environment. The filter mechanism can be set to take out the activated carbon adsorption net more conveniently and quickly for replacement, and the use of bolts and the like for fixing can be avoided, thereby improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the SMD crystal oscillator power-on aging device proposed by the utility model;

[0016] Figure 2 It is a schematic side view of the overall structure of the SMD crystal oscillator power-on aging device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the separation structure of the filter box and the activated carbon adsorption net of the SMD crystal oscillator electric aging device proposed by the utility model;

[0018] Figure 4The utility model provides an SMD crystal oscillator power-on aging device. Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. test box; 2. temperature sensor; 3. heater; 4. PLC controller; 5. box cover; 6. filter box; 7. suction mechanism; 71. suction fan; 72. connecting pipe; 73. air inlet pipe; 74. installation groove; 75. installation frame; 76. activated carbon adsorption net; 77. exhaust pipe; 8. filter mechanism; 81. fixing bar; 82. cross bar; 83. moving bar; 84. reset spring; 85. plug rod; 86. fixing hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Embodiment 1

[0022] Reference Figure 1-Figure 4 The SMD crystal oscillator powered aging device comprises a test box 1, a temperature sensor 2 is installed in the test box 1, a heater 3 is fixed on the test box 1, the output end of the heater 3 is connected to the test box 1, a PLC controller 4 is fixed on the top of the test box 1, the PLC controller 4 is electrically connected to the temperature sensor 2 and the heater 3, a box cover 5 is opened on the front side of the test box 1, a filter box 6 is fixed on the test box 1, an absorption mechanism 7 for absorbing the odor in the test box 1 into the filter box 6 is provided on the test box 1, and a filter mechanism 8 for absorbing the odor is provided in the filter box 6.

[0023] Reference Figure 1-Figure 4 The suction mechanism 7 includes a suction fan 71 fixed on the test box 1. The top of the test box 1 is connected with a connecting pipe 72. The suction end of the suction fan 71 is connected with the connecting pipe 72 through an air inlet pipe 73, and the air outlet end of the suction fan 71 is connected with the filter box 6.

[0024] Reference Figure 1-Figure 4The suction mechanism 7 also includes a mounting groove 74 opened on the top of the filter box 6, a mounting frame 75 is embedded in the mounting groove 74, an activated carbon adsorption net 76 is fixed in the mounting frame 75, and an exhaust pipe 77 is connected to the side of the filter box 6 away from the suction fan 71.

[0025] In the utility model, when in use, the box cover 5 is opened, the SMD crystal oscillator is placed in the test box 1, and the box cover 5 is closed. By starting the heater 3, the temperature in the test box 1 is increased, and the temperature inside the test box 1 is monitored by the temperature sensor 2. The signal is transmitted to the PLC controller 4, and the temperature injected by the heater 3 is controlled by the PLC controller 4 to detect the performance of the SMD crystal oscillator at different temperatures. After the SMD crystal oscillator is detected, odor will be generated in the test box 1 due to the high temperature. At this time, the suction fan 71 can be started to generate suction at the port of the connecting pipe 72, and the odor can be sucked into the filter box 6 through the connecting pipe 72 and the air inlet pipe 73 to avoid the odor remaining in the test box 1 and affecting the subsequent tests. The odor is adsorbed and filtered by two activated carbon adsorption nets 76. After filtering, it is discharged into the external environment through the exhaust pipe 77 to avoid the odor being directly discharged into the external environment and affecting the working environment. Embodiment 2

[0026] Reference Figure 1-Figure 4 The filter mechanism 8 includes a fixed bar 81 fixed to the top of the filter box 6, and cross bars 82 are fixed on both sides of the fixed bar 81. The cross bars 82 correspond to the positions of the mounting frame 75, and a movable bar 83 is slidably disposed on the outer surface of the cross bars 82.

[0027] Reference Figure 1-Figure 4 The filter mechanism 8 further includes a return spring 84 sleeved on the outer surface of the cross bar 82 , and two ends of the return spring 84 are fixedly connected to the fixed bar 81 and the movable bar 83 respectively.

[0028] Reference Figure 1-Figure 4 The filter mechanism 8 further includes an insertion rod 85 fixed to the side of the moving bar 83 , and a fixing hole 86 is provided on the mounting frame 75 , in which the insertion rod 85 slides.

[0029] In the present invention, when the activated carbon adsorption net 76 needs to be replaced after being used for a long time, the movable bar 83 can be slid backward on the outer surface of the cross bar 82 to squeeze the reset spring 84, so that the insertion rod 85 moves backward together, the insertion rod 85 is taken out from the fixing hole 86, and the restriction on the installation frame 75 is released. The installation frame 75 is slid upward in the installation groove 74, and the installation frame 75 and the activated carbon adsorption net 76 are taken out together, and they can be replaced, avoiding the use of bolts and the like to fix them, thereby improving the disassembly and assembly efficiency. After inserting the new installation frame 75, the movable bar 83 is loosened, and the movable bar 83 and the insertion rod 85 are reset by the elastic force of the reset spring 84, so that the insertion rod 85 is reinserted into the fixing hole 86 to fix the installation frame 75.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An SMD crystal oscillator power-on aging device, comprising a test box (1), characterized in that: A temperature sensor (2) is installed in the test box (1); a heater (3) is fixed on the test box (1); an output end of the heater (3) is connected to the test box (1); a PLC controller (4) is fixed on the top of the test box (1); the PLC controller (4) is electrically connected to the temperature sensor (2) and the heater (3); a box cover (5) is provided on the front side of the test box (1); a filter box (6) is fixed on the test box (1); a suction mechanism (7) is provided on the test box (1) for absorbing odor in the test box (1) into the filter box (6); and a filter mechanism (8) is provided in the filter box (6) for absorbing odor.

2. The SMD crystal oscillator power-on aging device according to claim 1, characterized in that: The suction mechanism (7) comprises a suction fan (71) fixed on the test box (1); the top of the test box (1) is connected to a connecting pipe (72); the suction end of the suction fan (71) is connected to the connecting pipe (72) via an air inlet pipe (73); and the air outlet end of the suction fan (71) is connected to the filter box (6).

3. The SMD crystal oscillator power-on aging device according to claim 2, characterized in that: The suction mechanism (7) further comprises a mounting groove (74) formed on the top of the filter box (6), a mounting frame (75) being embedded and mounted in the mounting groove (74), an activated carbon adsorption net (76) being fixed in the mounting frame (75), and an exhaust pipe (77) being connected to a side of the filter box (6) away from the suction fan (71).

4. The SMD crystal oscillator power-on aging device according to claim 3, characterized in that: The filtering mechanism (8) comprises a fixing bar (81) fixed to the top of the filtering box (6), cross bars (82) being fixed to both sides of the fixing bar (81), the cross bars (82) corresponding to the positions of the mounting frame (75), and a movable bar (83) being slidably disposed on the outer surface of the cross bars (82).

5. The SMD crystal oscillator power-on aging device according to claim 4, characterized in that: The filtering mechanism (8) further comprises a return spring (84) sleeved on the outer surface of the cross bar (82), and two ends of the return spring (84) are respectively fixedly connected to the fixed bar (81) and the movable bar (83).

6. The SMD crystal oscillator power-on aging device according to claim 4, characterized in that: The filtering mechanism (8) further comprises an insertion rod (85) fixed to the side of the moving bar (83); a fixing hole (86) is provided on the installation frame (75), and the insertion rod (85) slides in the fixing hole (86).

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