Multi-channel resistance tester

Abstract

The utility model discloses a multichannel resistance tester, which relates to the technical field of resistance testers and comprises a resistance tester body, a resistance test access port is arranged on one side of the resistance tester body, and a plurality of resistance test connection grooves are arranged in the resistance test access port. According to the utility model, the fixed blocks are slidably arranged in the resistance test connection groove, each fixed block is fixed at the bottom end of the movable plate, and the control screw rod is rotated to drive the movable plate to move downwards, so that the plurality of fixed blocks are pressed downwards at the same time, and the movable plate is limited by the limiting rod, thereby avoiding displacement of the movable plate. The problems that in the prior art, when a large number of resistors are tested at the same time, time and labor are wasted in the mode that a worker manually aligns and fixes the contact ends of the resistors into test jacks one by one through fixing screws, meanwhile, the resistors need to be dismantled one by one after the resistors are tested, and overall operation is tedious and complex are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance tester technical field especially relates to a multichannel resistance tester. BACKGROUND

[0002] Resistance tester is a kind of electronic instrument for measuring resistance value, is widely used in electronic manufacturing, power system, scientific research experiment etc. field, it measures the voltage or current generated by the known current or voltage applied to the resistance to be measured, calculates resistance value using Ohm's law, resistance tester can be divided into hand-held, table type and multichannel etc. type, with high precision, fast measurement and multiple measurement range characteristics, some senior models also support automatic range switching, temperature compensation and data storage function, suitable for different environments and complex application scenarios, its core function is to ensure the accuracy and reliability of resistance measurement, provides key data support for product quality control and fault diagnosis.

[0003] But in prior art, when using multichannel resistance tester to test resistance, often need staff to manually align and fix the contact end of resistance into test jack inside by fixed screw one by one, when the resistance tested simultaneously is more, this fixing mode is time-consuming and laborious, and also needs to be removed one by one after resistance test is completed, overall operation is more complicated. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the prior art existing when the resistance tested simultaneously is more, staff manually aligns and fixes the contact end of resistance into test jack inside by fixed screw one by one, and also needs to be removed one by one after resistance test is completed, overall operation is more complicated Problem, and proposes a multichannel resistance tester.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: including resistance tester main part, the resistance tester main part one side is provided with resistance test access, the resistance test access is internally provided with a plurality of resistance test slot, each resistance test slot is slidably provided with fixed block in, resistance test slot top is provided with moving plate, each fixed block is fixed in moving plate bottom, moving plate top is provided with support plate, support plate is fixedly connected with resistance tester main part side, resistance tester main part inside is rotatably connected with control screw, control screw below is connected with moving plate screw thread.

[0006] Preferably, the bottom end of the resistance tester body is provided with a heat dissipation box, the heat dissipation box is fixedly connected with the resistance tester body through a fixing plate, a air inlet is formed in one side of the heat dissipation box, an air outlet is formed in the other side of the heat dissipation box, heat dissipation fins are fixedly arranged in the heat dissipation box, and a plurality of heat dissipation fans are arranged at the end of the heat dissipation box close to the air inlet.

[0007] Preferably, two limiting rods are symmetrically fixed to the bottom ends of the two ends of the moving plate, and a sliding groove matched with the limiting rods is formed in the resistance test inlet.

[0008] Preferably, anti-skid stripes are arranged on the upper side of the control screw, and a screwdriver groove is formed in the top end of the control screw.

[0009] Preferably, a dust screen is arranged in the air inlet, and a dust screen same as that in the air inlet is arranged in the air outlet.

[0010] Preferably, the heat dissipation box and the resistance tester body are both provided with a fixing groove matched with the fixing plate, and the fixing plate is fixedly connected with the heat dissipation box and the resistance tester body through embedded bolts.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that:

[0012] 1、In the utility model, the fixed blocks are arranged in the resistance test groove in a sliding mode, and each fixed block is fixed to the bottom end of the moving plate, then the control screw is rotated to drive the moving plate to move downward, so that the plurality of fixed blocks are pressed downward at the same time, and the limiting rods limit the moving plate to avoid displacement, thereby solving the problem that in the prior art, when the resistance is large, the staff manually aligns and fixes the contact end of the resistance into the test jack one by one, which is time-consuming and laborious, and the resistance needs to be removed one by one after the resistance test is completed, and the overall operation is relatively complicated.

[0013] 2、In the utility model, the heat dissipation box is arranged below the resistance tester body, so that the heat generated by the resistance tester body during work is introduced into the heat dissipation box through the heat dissipation fins, then the heat dissipation fans are started to blow air flow, and the air flow is blown out of the air outlet, and the air flow carries the heat in the heat dissipation box out, thereby improving the heat dissipation efficiency of the resistance tester body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of the multi-channel resistance tester is provided for the utility model;

[0015] Figure 2 A fixing structure three-dimensional structure schematic view of the multi-channel resistance tester is provided for the utility model;

[0016] Figure 3 This utility model provides a three-dimensional structural diagram of the left side of the heat sink of a multi-channel resistance tester;

[0017] Figure 4 This invention presents a three-dimensional structural diagram of the right side of the heat sink of a multi-channel resistance tester.

[0018] Legend: 1. Main body of the resistance tester; 2. Resistance test inlet; 3. Resistance test slot; 4. Moving plate; 5. Fixing block; 6. Limiting rod; 7. Support plate; 8. Control screw; 9. Screwdriver slot; 10. Heat sink; 11. Heat sink; 12. Air inlet; 13. Air outlet; 14. Fixing plate; 15. Cooling fan. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example 1

[0021] like Figures 1-4 As shown, this utility model provides a multi-channel resistance tester, including a resistance tester body 1. A resistance test inlet 2 is provided on one side of the resistance tester body 1. Several resistance test slots 3 are opened inside the resistance test inlet 2. A fixing block 5 is slidably arranged inside each resistance test slot 3. A moving plate 4 is arranged above the resistance test slot 3. Each fixing block 5 is fixed to the bottom end of the moving plate 4. A support plate 7 is arranged above the moving plate 4. The support plate 7 is fixedly connected to the side of the resistance tester body 1. A control screw 8 is rotatably connected inside the resistance tester body 1. The lower part of the control screw 8 is threadedly connected to the moving plate 4, so that multiple resistors are fixed simultaneously through the moving plate 4.

[0022] The specific settings and functions of this embodiment are described below: Two limiting rods 6 are symmetrically fixed at the bottom ends of the moving plate 4. The resistance test inlet 2 has a groove that matches the shape of the limiting rod 6 to prevent the moving plate 4 from shifting left and right when moving up and down, thus affecting the fixing accuracy of the fixing block 5. The upper side of the control screw 8 is provided with anti-slip stripes, and the top of the control screw 8 is provided with a screwdriver groove 9, making it easier for the operator to rotate the control screw 8. Example 2

[0023] As Figures 1-4 shown, the resistance tester body 1 bottom end is provided with a heat dissipation box 10, the heat dissipation box 10 is fixedly connected with the resistance tester body 1 through the fixed plate 14, the heat dissipation box 10 one side is provided with the air inlet 12, the heat dissipation box 10 other side is provided with the air outlet 13, the heat dissipation box 10 inside is fixed with the cooling fin 11, the heat dissipation box 10 inside is close to the air inlet 12 one end and is provided with a plurality of cooling fans 15, so that the heat dissipation box 10 improves the heat dissipation efficiency of the resistance tester body 1.

[0024] Its whole embodiment reaches the effect for, the air inlet 12 inside is provided with the dust screen, the air outlet 13 inside is provided with the dust screen same with the air inlet 12 inside, avoids the dust to enter the heat dissipation box 10 inside, the heat dissipation box 10 and the resistance tester body 1 all are equipped with the fixed groove with the shape cooperation of fixed plate 14, the fixed plate 14 is fixedly connected with the heat dissipation box 10 and the resistance tester body 1 through the embedded bolt, so that the resistance tester body 1 and the heat dissipation box 10 outside face is the same plane, facilitates the placement and stacking of resistance tester body 1, and makes the replacement of heat dissipation box 10 more convenient.

[0025] The use method and working principle of the device are as follows: when the staff tests multiple resistors, the two ends of the multiple resistors are placed in the resistance test grooves 3 respectively, then the control screw rod 8 is rotated to drive the moving plate 4 to move, so that the moving plate 4 drives the fixed blocks 5 to move downward, so that the multiple fixed blocks 5 simultaneously clamp and fix the resistors in the corresponding resistance test grooves 3, and the limiting rods 6 avoid displacement of the moving plate 4 during rotation, so as to prevent unstable fixation. When the resistance tester body 1 starts the test work, the heat generated by the resistance tester body 1 during work is introduced into the heat dissipation box 10 through the cooling fin 11, at this time, the cooling fan 15 is started to blow air to the direction of the air outlet 13, and the air is blown out from the direction of the air outlet 13, so as to improve the heat dissipation performance of the resistance tester body 1. The air inlets 12 and the air outlets 13 are all provided with dust screens, so as to prevent dust from entering the heat dissipation box 10.

[0026] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to apply to other fields with equivalent changes. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still falls within the protection scope of the present application.

Claims

1. A multi-channel resistance tester, comprising a resistance tester body (1), wherein a resistance test inlet (2) is provided on one side of the resistance tester body (1), and a plurality of resistance test slots (3) are provided inside the resistance test inlet (2), characterized in that: Each resistance test slot (3) has a fixed block (5) slidably installed inside. A movable plate (4) is installed above the resistance test slot (3). Each fixed block (5) is fixed to the bottom of the movable plate (4). A support plate (7) is installed above the movable plate (4). The support plate (7) is fixedly connected to the side of the resistance tester body (1). A control screw (8) is rotatably connected inside the resistance tester body (1). The lower part of the control screw (8) is threadedly connected to the movable plate (4).

2. The multi-channel resistance tester according to claim 1, characterized in that: The resistance tester body (1) is provided with a heat sink (10) at the bottom. The heat sink (10) is fixedly connected to the resistance tester body (1) through a fixing plate (14). An air inlet (12) is provided on one side of the heat sink (10), and an air outlet (13) is provided on the other side of the heat sink (10). A heat sink (11) is fixed inside the heat sink (10), and several cooling fans (15) are provided inside the heat sink (10) near the air inlet (12).

3. The multi-channel resistance tester according to claim 1, characterized in that: The movable plate (4) has two symmetrically fixed bottom ends with two limiting rods (6), and the resistance test inlet (2) has a groove inside that matches the shape of the limiting rods (6).

4. A multi-channel resistance tester according to claim 1, characterized in that: The upper side of the control screw (8) is provided with anti-slip stripes, and the top of the control screw (8) is provided with a screwdriver groove (9).

5. A multi-channel resistance tester according to claim 2, characterized in that: The air inlet (12) is equipped with a dustproof net, and the air outlet (13) is equipped with the same dustproof net as the air inlet (12).

6. A multi-channel resistance tester according to claim 2, characterized in that: Both the heat sink (10) and the resistance tester body (1) are provided with fixing grooves that match the shape of the fixing plate (14). The fixing plate (14) is fixedly connected to the heat sink (10) and the resistance tester body (1) by embedded bolts.

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