LCR digital bridge tester

Abstract

The utility model discloses an LCR digital bridge tester, which comprises a digital bridge tester body, a display screen arranged on the side surface of the digital bridge tester body, a dust filtering plate fixed in an air inlet, and a first rotating seat plate and a second rotating seat plate fixed on the side surface of the top end of the digital bridge tester body, the end, away from the bevel gear, of the second shaft rod is in transmission connection with a second cleaning assembly, a first cleaning assembly in transmission connection with the first shaft rod is arranged on one side of the display screen, and a dismounting assembly is arranged on the first cleaning assembly. The first cleaning assembly is driven by the first shaft rod to brush and clean the surface of the display screen in a reciprocating mode, a user can read data conveniently, the dust filtering plate is cleaned through the second cleaning assembly, dust and impurities accumulated on the surface of the dust filtering plate are cleaned away, and therefore the ventilation efficiency of the dust filtering plate is ensured, and the user experience is improved. It is ensured that sufficient cold air is always sucked into the digital bridge tester body for heat dissipation, and synchronous cleaning of the display screen and the dust filtering plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic measuring instruments, in particular to an LCR digital bridge tester. Background Art

[0002] The LCR digital bridge tester is a test instrument used to measure the impedance characteristics of electronic components. It uses advanced digital signal processing technology to quickly and accurately measure the impedance value and phase angle of LCR components, and is widely used in electronic manufacturing, scientific research, quality control and other fields. The LCR digital bridge tester has the characteristics of high precision, high stability, and high resolution, and can measure impedance values ​​as low as milliohms or as high as megohms. It supports a variety of test methods, such as AC test, DC test, pulse test, etc., which can meet different test needs. The test instrument has a wide measurement range, and the frequency can range from a few hertz to hundreds of megahertz, which is suitable for testing electronic components of various frequencies.

[0003] The LCR digital bridge tester has multiple test modes such as automatic test, manual test and online test, which can meet the test needs of different occasions. However, the existing LCR digital bridge tester is found to have the following shortcomings during use:

[0004] ① After long-term use, the surface of the LCR digital bridge tester display screen is prone to dust and impurities, which affects the clarity of the projected image and the reading of data by users. It needs to be manually cleaned, which is inconvenient to clean and difficult to ensure the cleaning effect.

[0005] ② The heat dissipation port on the existing LCR digital bridge tester generally needs to be installed with a dust filter screen for dust prevention, but the dust filter screen is prone to accumulate a large amount of dust, affecting the ventilation efficiency and thus the heat dissipation efficiency.

[0006] Therefore, it is necessary to provide a LCR digital bridge tester to solve the above technical problems. Utility Model Content

[0007] The purpose of the utility model is to provide an LCR digital bridge tester to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model solves the above-mentioned technical problems as follows: an LCR digital bridge tester, comprising a digital bridge tester body, a display screen is arranged on the side of the digital bridge tester body, an air inlet is opened on the side of the digital bridge tester body, a dust filter plate is fixed in the air inlet, a first rotating seat plate and a second rotating seat plate are fixed on the top side of the digital bridge tester body, a first shaft rod and a second shaft rod are rotatably connected on the first rotating seat plate and the second rotating seat plate respectively, a small motor whose output end is coaxially fixed with one end of the first shaft rod is fixed on the top side of the digital bridge tester body, bevel gears are fixed on the end of the second shaft rod and the side of the first shaft rod and the two bevel gears are meshed and connected, a second cleaning assembly is transmission-connected to one end of the second shaft rod, a first cleaning assembly transmission-connected to the first shaft rod is arranged on one side of the display screen, and a disassembly assembly is arranged on the first cleaning assembly.

[0009] As a further solution of the utility model, the first cleaning component includes a gear fixed on the end of the first shaft away from the small motor, a rack plate meshing with the gear is fitted on the top side of the digital bridge tester body, a convex plate is fixed on the side of the rack plate, a lower connecting plate located on one side of the display screen is connected to the convex plate, a cleaning cotton block is fitted and fixed on the side of the lower connecting plate close to the display screen, a guide groove plate is fixed on the side of the digital bridge tester body, and a convex column slidingly adapted to the guide groove plate is fixed on the bottom surface of the convex plate.

[0010] As a further solution of the utility model, the disassembly and assembly component includes a sleeve fixed on the bottom surface of the convex plate, a plug post that matches the sleeve is fixed on one end of the lower connecting plate, a threaded hole is opened on the side of the plug post, and a locking bolt that matches the threaded hole is threadedly connected to the side of the sleeve.

[0011] As a further solution of the utility model, the second cleaning component includes an incomplete gear fixed on the end of the second shaft away from the bevel gear, and the incomplete gear is meshed with a circular tooth plate, and a brush plate is fixed to the bottom end of the circular tooth plate, and the bristles on the brush plate are in contact with the dust filter plate.

[0012] As a further solution of the utility model, a support rod is fixed on the top side of the digital bridge tester body, a sliding sleeve is fixed on the top of the support rod, and a connector strip slidably adapted to the sliding sleeve is fixed on the top of the circular tooth plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The surface of the display screen is cleaned by reciprocating brushing through the first cleaning component to remove dust and impurities on the surface of the display screen, effectively improving the clarity of the display screen surface, making it convenient for users to read data and use it. At the same time, the rotating first shaft drives the second shaft to rotate through the cooperation of two bevel gears, thereby driving the second cleaning component to work through the second shaft, and the dust filter plate is cleaned through the second cleaning component to remove dust and impurities accumulated on the surface of the dust filter plate, thereby ensuring the ventilation efficiency of the dust filter plate and ensuring that there is always enough cold air inhaled into the digital bridge tester body for heat dissipation, eliminating the operation of manually cleaning the dust filter plate, saving manpower, and realizing synchronous cleaning of the display screen and the dust filter plate.

[0015] 2. When the cleaning cotton block is too dirty, the locking bolt can be unscrewed from the threaded hole to remove the plug from the outer sleeve, thereby removing the lower connecting plate, making it convenient to clean the cleaning cotton block on the lower connecting plate, facilitating maintenance and effectively improving overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a partial structural schematic diagram of the first cleaning component of the utility model;

[0018] Figure 2 It is a schematic diagram of the partial structure of the support rod and the sliding sleeve of the utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the first cleaning component of the utility model;

[0020] Figure 4 This is a partial structural diagram of the cleaning sponge block of the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of the second cleaning component of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. First cleaning component; 101. Rack plate; 102. convex plate; 103. convex column; 104. lower connecting plate; 105. cleaning cotton block; 106. gear; 107. guide groove plate; 2. disassembly and assembly component; 201. plug column; 202. threaded hole; 203. sleeve; 204. locking bolt; 3. Second cleaning component; 301. circular tooth plate; 302. incomplete gear; 303. brush plate; 304. joint strip plate; 305. sliding sleeve; 306. bracket rod; 4. digital bridge tester body; 5. display screen; 6. dust filter plate; 7. small motor; 8. first shaft rod; 9. bevel gear; 10. first rotating seat plate; 11. air inlet; 12. second rotating seat plate; 13. second shaft rod. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the embodiments.

[0025] See also Figure 1-5 The utility model provides an LCR digital bridge tester, comprising a digital bridge tester body 4, a display screen 5 is arranged on the side of the digital bridge tester body 4, an air inlet 11 is opened on the side of the digital bridge tester body 4, a dust filter plate 6 is fixed in the air inlet 11, a first rotating seat plate 10 and a second rotating seat plate 12 are fixed on the top side of the digital bridge tester body 4, a first shaft 8 and a second shaft 13 are rotatably connected to the first rotating seat plate 10 and the second rotating seat plate 12 respectively, a small motor 7 whose output end is coaxially fixed with one end of the first shaft 8 is fixed on the top side of the digital bridge tester body 4, a bevel gear 9 is fixed on the end of the second shaft 13 and the side of the first shaft 8, and the two bevel gears 9 are meshed and connected, a second cleaning component 3 is transmission-connected to one end of the second shaft 13 away from the bevel gear 9, a first cleaning component 1 transmission-connected to the first shaft 8 is arranged on one side of the display screen 5, and the first cleaning component 1 A disassembly and assembly component 2 is arranged on it; when a lot of dust and impurities adhere to the surface of the display screen 5, the small motor 7 is started to work, and the output end of the small motor 7 drives the first shaft rod 8 to rotate, so that the first shaft rod 8 drives the first cleaning component 1 to brush the surface of the display screen 5 back and forth to clean, so as to remove the dust and impurities on the surface of the display screen 5, effectively improve the clarity of the surface of the display screen 5, and facilitate the user to read data and use it conveniently. At the same time, the rotating first shaft rod 8 drives the second shaft rod 13 to rotate through the cooperation of the two bevel gears 9, so as to drive the second cleaning component 3 to work through the second shaft rod 13, and clean the dust filter plate 6 through the second cleaning component 3, and clean the dust and impurities accumulated on the surface of the dust filter plate 6, so as to ensure the ventilation efficiency of the dust filter plate 6, and ensure that there is always a sufficient amount of cold air sucked into the digital bridge tester body 4 for heat dissipation, eliminating the operation of manually cleaning the dust filter plate 6, saving manpower, and realizing synchronous cleaning of the display screen 5 and the dust filter plate 6.

[0026] Example 1

[0027] See also Figure 1 , Figure 3 and Figure 4 As shown, the first cleaning component 1 includes a gear 106 fixed on the end of the first shaft 8 away from the small motor 7, a rack plate 101 meshing with the gear 106 is fitted on the top side of the digital bridge tester body 4, a convex plate 102 is fixed on the side of the rack plate 101, and a lower connecting plate 104 located on one side of the display screen 5 is connected to the convex plate 102, and a cleaning cotton piece 105 is fitted and fixed on the side of the lower connecting plate 104 close to the display screen 5; when a lot of dust and impurities adhere to the surface of the display screen 5, the small motor 7 is started to work, and the small The output end of the motor 7 drives the first shaft 8 to rotate back and forth in both directions, so that the first shaft 8 drives the gear 106 to rotate back and forth, and the gear 106 drives the rack plate 101 to move back and forth, and the rack plate 101 drives the lower connecting plate 104 to reciprocate, and the cleaning cotton block 105 contacts the surface of the display screen 5, so that the surface of the display screen 5 is brushed back and forth by the cleaning cotton block 105 to remove dust and impurities on the surface of the display screen 5, effectively improving the clarity of the surface of the display screen 5, making it convenient for users to read data and easy to use.

[0028] Example 2

[0029] See also Figure 1 , Figure 2 and Figure 5 As shown, the second cleaning component 3 includes an incomplete gear 302 fixed on the end of the second shaft 13 away from the bevel gear 9, and the incomplete gear 302 is meshedly connected with a circular tooth plate 301, and a brush plate 303 is fixed to the bottom end of the circular tooth plate 301, and the bristles on the brush plate 303 are in contact with the dust filter plate 6; during specific operation, the rotating first shaft 8 drives the second shaft 13 to rotate through the cooperation of the two bevel gears 9, thereby driving the incomplete gear 302 to rotate through the second shaft 13, and driving the brush plate 303 to move back and forth through the cooperation of the incomplete gear 302 and the circular tooth plate 301, so that the dust and impurities accumulated on the surface of the dust filter plate 6 are cleaned up by the brush plate 303, thereby ensuring the ventilation efficiency of the dust filter plate 6, ensuring that there is always a sufficient amount of cold air sucked into the digital bridge tester body 4 for heat dissipation, eliminating the operation of manually cleaning the dust filter plate 6, and saving manpower.

[0030] Further Figure 1 , Figure 3 and Figure 4As shown, it is worth explaining in detail that the disassembly and assembly component 2 includes a sleeve 203 fixed on the bottom surface of the convex plate 102, and a pin 201 that is plugged into and matched with the sleeve 203 is fixed on one end of the lower connecting plate 104, a threaded hole 202 is opened on the side of the pin 201, and a locking bolt 204 that is compatible with the threaded hole 202 is threadedly connected on the side of the sleeve 203; during specific work, when the cleaning cotton block 105 is too dirty, the pin 201 can be removed from the sleeve 203 by unscrewing the locking bolt 204 from the threaded hole 202, thereby removing the lower connecting plate 104, thereby facilitating the cleaning of the cleaning cotton block 105 on the lower connecting plate 104, facilitating maintenance, and effectively improving the overall practicality.

[0031] Further as Figure 1 and Figure 3 As shown, it is worth explaining in detail that a guide groove plate 107 is fixed on the side of the digital bridge tester body 4, and a convex column 103 that is slidably adapted to the guide groove plate 107 is fixed on the bottom surface of the convex plate 102; during specific operation, when the rack plate 101 moves, the convex column 103 at the bottom end of the convex plate 102 slides in the guide groove plate 107, and the rack plate 101 is guided and limited by the limiting cooperation of the guide groove plate 107 and the convex column 103, thereby improving the stability of the movement of the rack plate 101, thereby ensuring the cleaning effect of the cleaning cotton block 105 on the surface of the display screen 5.

[0032] Further as Figure 1 and Figure 2 As shown, it is worth explaining in detail that a support rod 306 is fixed on the top side of the digital bridge tester body 4, a sliding sleeve 305 is fixed on the top of the support rod 306, and a joint strip 304 that is slidably adapted to the sliding sleeve 305 is fixed on the top of the circular tooth plate 301; during specific operation, when the circular tooth plate 301 moves, the circular tooth plate 301 drives the joint strip 304 to slide in the sliding sleeve 305, so that the movement of the circular tooth plate 301 and the brush plate 303 is guided and limited by the cooperation of the joint strip 304 and the sliding sleeve 305, thereby ensuring the smooth movement and cleaning of the brush plate 303.

[0033] This scheme has the following working process: when there is a lot of dust and impurities adhered to the surface of the display screen 5, the small motor 7 is started to work, and the output end of the small motor 7 drives the first shaft rod 8 to rotate back and forth in both directions, so that the first shaft rod 8 drives the gear 106 to rotate back and forth, and the gear 106 drives the rack plate 101 to move back and forth. When the rack plate 101 moves, the convex column 103 at the bottom end of the convex plate 102 slides in the guide groove plate 107, and the rack plate 101 is guided and limited by the limiting cooperation of the guide groove plate 107 and the convex column 103. The lower connecting plate 104 is driven to move back and forth by the rack plate 101, and the cleaning cotton block 105 contacts the surface of the display screen 5, so that the surface of the display screen 5 is reciprocated and cleaned by the cleaning cotton block 105 to remove dust and impurities on the surface of the display screen 5, which is convenient for users to read data. The rotating first shaft rod 8 is matched with two bevel gears 9. The combination drives the second shaft rod 13 to rotate, thereby driving the incomplete gear 302 to rotate through the second shaft rod 13, and driving the brush plate 303 to reciprocate through the cooperation of the incomplete gear 302 and the circular tooth plate 301. When the circular tooth plate 301 moves, the circular tooth plate 301 drives the joint strip plate 304 to slide in the sliding sleeve 305, thereby guiding and limiting the movement of the circular tooth plate 301 and the brush plate 303 through the cooperation of the joint strip plate 304 and the sliding sleeve 305, so that the dust and impurities accumulated on the surface of the dust filter plate 6 are cleaned up through the brush plate 303, thereby ensuring the ventilation efficiency of the dust filter plate 6. When the cleaning cotton block 105 is too dirty, the locking bolt 204 can be unscrewed from the threaded hole 202, so that the plug column 201 can be removed from the outer sleeve 203, thereby removing the lower connecting plate 104, so as to facilitate the cleaning of the cleaning cotton block 105 on the lower connecting plate 104.

[0034] The small motor 7 can be purchased on the market. The small motor 7 is equipped with a power supply, which is a mature technology in this field and has been fully disclosed, so it will not be repeated in the specification.

Claims

1. An LCR digital bridge tester, comprising a digital bridge tester body (4), characterized in that: A display screen (5) is arranged on the side of the digital bridge tester body (4); an air inlet (11) is opened on the side of the digital bridge tester body (4); a dust filter plate (6) is fixed in the air inlet (11); a first rotating seat plate (10) and a second rotating seat plate (12) are fixed on the top side of the digital bridge tester body (4); a first shaft rod (8) and a second shaft rod (13) are rotatably connected to the first rotating seat plate (10) and the second rotating seat plate (12), respectively; the digital bridge tester body (4) A small motor (7) is fixed on the top side of the second shaft (13), the output end of which is coaxially fixed with one end of the first shaft (8); a bevel gear (9) is fixed on the end of the second shaft (13) and the side of the first shaft (8), and the two bevel gears (9) are meshingly connected; the end of the second shaft (13) away from the bevel gear (9) is transmission-connected to a second cleaning component (3); a first cleaning component (1) transmission-connected to the first shaft (8) is provided on one side of the display screen (5); and a disassembly component (2) is provided on the first cleaning component (1).

2. The LCR digital bridge tester according to claim 1, characterized in that: The first cleaning component (1) comprises a gear (106) fixed on the end of the first shaft (8) away from the small motor (7); a rack plate (101) meshingly connected with the gear (106) is fitted on the top side of the digital bridge tester body (4); a convex plate (102) is fixed on the side of the rack plate (101); a lower connecting plate (104) located on one side of the display screen (5) is connected to the convex plate (102); a cleaning cotton block (105) is fitted and fixed on the side of the lower connecting plate (104) close to the display screen (5); a guide groove plate (107) is fixed on the side of the digital bridge tester body (4); and a convex column (103) slidably adapted to the guide groove plate (107) is fixed on the bottom surface of the convex plate (102).

3. The LCR digital bridge tester according to claim 2, characterized in that: The disassembly assembly (2) comprises a sleeve (203) fixed on the bottom surface of the convex plate (102), a plug post (201) which is plugged into and matched with the sleeve (203) is fixed on one end of the lower connecting plate (104), a threaded hole (202) is provided on the side surface of the plug post (201), and a locking bolt (204) which is plugged into and matched with the threaded hole (202) is threadedly connected on the side surface of the sleeve (203).

4. The LCR digital bridge tester according to claim 1, characterized in that: The second cleaning assembly (3) comprises an incomplete gear (302) fixed to an end of the second shaft (13) away from the bevel gear (9), the incomplete gear (302) being meshingly connected with a circular tooth plate (301), a brush plate (303) being fixed to the bottom end of the circular tooth plate (301), and the bristles on the brush plate (303) being in contact with the dust filter plate (6).

5. The LCR digital bridge tester according to claim 4, characterized in that: A support rod (306) is fixed on the top side of the digital bridge tester body (4), a sliding sleeve (305) is fixed on the top of the support rod (306), and a connector strip (304) slidably matched with the sliding sleeve (305) is fixed on the top of the circular tooth plate (301).

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