Multi-channel temperature sensor detection jig

Abstract

The utility model discloses a multipath temperature sensor detection tool, which belongs to the technical field of temperature sensors, and comprises a base and a detection cable, one end of the detection cable is connected with a plurality of groups of plugging ends, the other end of the detection cable is connected with a plurality of groups of temperature sensing ends, and the top of the base is provided with a detection circuit board. A plurality of groups of plug ends are arranged on the base, a detection circuit board is arranged on the base, a plurality of groups of wiring grooves matched with the plug ends are arranged on the detection circuit board, a thermostat is further arranged on the detection circuit board, an upper cover is further arranged on the base, and a display wiring end is further arranged on the detection circuit board. And when the detection sequence is inconsistent with the preset detection sequence, the identification marks are wrongly bonded, and the products are defective products, so that the qualification rate of a batch of products can be judged in a sampling inspection mode, and more defective products can be prevented from entering the downstream in time.

Description

A multi-channel temperature sensor detection fixture Technical Field

[0001] This utility model relates to the field of temperature sensor technology, specifically a multi-channel temperature sensor detection fixture. Background Technology

[0002] Multi-channel temperature sensor detection technology refers to a systematic method of synchronously or time-divisionally monitoring the temperature of multiple target points or areas using multiple temperature sensors. This technology is widely used in fields such as industrial automation, environmental monitoring, medical equipment, agricultural greenhouses, and data centers. It can acquire multi-point temperature data in real time, providing a reliable basis for safe equipment operation, environmental control, and data analysis.

[0003] The equipment monitors multiple temperatures, but the sensor lines used for detection are often bundled together and manually connected. Before installation, the sensor lines need to be correctly connected according to the identification marks. However, in the existing technology, multiple wires of the same color without any markings are often used to connect the sensors, which can save production costs.

[0004] However, there is a defect in the above technical conditions: during the process of workers attaching identification marks to the sensor circuits, sometimes the identification marks are attached to the wrong circuits, which leads to inconsistencies between the corresponding identification marks and the corresponding sensor circuits during subsequent installation and use, resulting in abnormal temperature detection.

[0005] Based on this, the present invention designs a multi-channel temperature sensor detection fixture to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-channel temperature sensor detection fixture to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel temperature sensor detection fixture, comprising a base and a detection cable, one end of which is connected to multiple sets of plug terminals, and the other end of which is connected to multiple sets of temperature sensing terminals. A detection circuit board is provided on the top of the base, and multiple sets of wiring slots adapted to the plug terminals are provided on the detection circuit board. A thermostat is also provided on the detection circuit board, and a top cover is also provided on the base. A display terminal is also provided on the detection circuit board.

[0008] By adopting the above technical solution, multiple sets of plug terminals are plugged into the corresponding wiring slots, and then the corresponding temperature sensing ends are attached to the thermostat according to the preset detection sequence, so as to prevent multiple sets of plug terminals and temperature sensing ends from being mixed up and avoid abnormal detection.

[0009] Preferably, the detection circuit board is also provided with a locking mechanism, which is located near the thermostat.

[0010] By adopting the above technical solution, the temperature sensing end can be well attached to the thermostat.

[0011] Preferably, the tightening mechanism includes two sets of support rods and support plates. A pressing rod is rotatably mounted on the two sets of support rods. Two sets of springs are fixedly connected to the bottom of the pressing rods. The bottom ends of the two sets of springs are fixedly connected to the top of the detection circuit board. Reversing wheels are rotatably connected to opposite sides of the two sets of support plates. Outer columns are fixedly connected to the outer sides of the two sets of reversing wheels. Connecting rods are rotatably connected to both ends of the pressing rods. An outer ring is rotatably connected to one end of the connecting rod and is rotatably connected to the outer column. Inner columns are fixedly connected to opposite sides of the two sets of reversing wheels. Inner rings are rotatably connected to the outer sides of the two sets of inner columns. A driving rod is fixedly connected to the bottom of the two sets of inner rings. A pressure plate is fixedly connected to the bottom of the two sets of driving rods.

[0012] By adopting the above technical solution, when the pressing rod is pressed down, the pressure plate can be controlled to move downward, so that the temperature sensing end can better fit on the thermostat.

[0013] Preferably, a protective pad is fixedly connected to the bottom of the pressure plate, and the protective pad is made of rubber.

[0014] By adopting the above technical solution, the bonding effect is improved, while preventing damage to the temperature sensing end during bonding.

[0015] Preferably, the display terminal is provided with buckles on both sides, and four sets of foot pads are fixedly connected to the bottom of the base.

[0016] By adopting the above technical solutions, the effectiveness of the testing fixture can be improved.

[0017] In summary, this application has the following beneficial technical effects:

[0018] 1. The sensor circuit with identification marks has been attached to the set thermostat and detection circuit board for detection. When the detection sequence is inconsistent with the preset detection sequence, it means that the identification mark is incorrectly attached. This is a defective product. It can determine the pass rate of a batch of products by sampling inspection, and thus prevent a large number of defective products from entering the downstream in time.

[0019] 2. Furthermore, the locking mechanism allows the temperature sensing end to be easily and tightly attached to the top of the thermostat, resulting in better detection and improved performance. It also allows for quick removal after loosening, facilitating operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 is a schematic diagram of the locking mechanism in this embodiment;

[0023] Figure 3 is a control circuit diagram of the thermostat in this embodiment.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Base; 2. Detection cable; 3. Plug-in terminal; 4. Temperature sensing terminal; 5. Detection circuit board; 6. Wiring slot; 7. Thermostat; 8. Top cover; 9. Display terminal; 10. Buckle; 11. Foot pad; 12. Locking mechanism; 121. Support rod; 122. Pressing rod; 123. Spring; 124. Support plate; 125. Reversing wheel; 126. Connecting rod; 127. Outer column; 128. Outer ring sleeve; 129. Inner column; 1210. Inner ring sleeve; 1211. Drive rod; 1212. Pressure plate; 1213. Protective pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] The present application will be further described in detail below with reference to Figures 1-3.

[0028] A multi-channel temperature sensor detection fixture includes a base 1 and a detection cable 2. Multiple sets of connectors 3 are connected to one end of the detection cable 2, each labeled with a number (1, 2, 3…). Each connector 3 has a corresponding insertion mark, allowing it to be inserted only into a designated position on a corresponding circuit board. Multiple temperature sensing terminals 4 are connected to the other end of the detection cable 2. A detection circuit board 5 is mounted on the top of the base 1. The detection circuit board 5 has a preset detection program; a pass is only indicated when the multiple temperature sensing terminals 4 are tested according to the preset detection sequence. Various electronic components for temperature detection are mounted on the detection circuit board 5, and the specific circuit design is shown in Figure 3. The circuit board 5 is equipped with multiple sets of wiring slots 6 that are compatible with the plug-in terminals 3. The plug-in slots 6 are marked with corresponding numbers (1, 2, 3...) for connecting the detection cables 2. A thermostat 7 is also provided on the detection circuit board 5. By using a PID algorithm, the temperature of the thermostat 7 is always kept at 50℃. Figure 3 shows the control circuit of the thermostat 7, where Q3 is the heating end and J4 is the temperature acquisition end. When the temperature is low, the PWM duty cycle increases to increase the power of the heating end. When the temperature reaches the set value, the PWM duty cycle decreases to reduce the power of the heating end. A top cover 8 is also provided on the base 1. A display terminal 9 is also provided on the detection circuit board 5. It is connected to the display screen through a ribbon cable and communicates using RS232.

[0029] Furthermore, a locking mechanism 12 is also provided on the detection circuit board 5. The locking mechanism 12 is located near the thermostat 7 and can press the temperature sensing end 4 against the top of the thermostat 7.

[0030] Furthermore, the locking mechanism 12 includes two sets of support rods 121 and support plates 124. A pressing rod 122 is rotatably mounted on each of the two sets of support rods 121. Two sets of springs 123 are fixedly connected to the bottom of the pressing rod 122, and the bottom ends of the two sets of springs 123 are fixedly connected to the top of the detection circuit board 5. Reversing wheels 125 are rotatably connected to opposite sides of the two sets of support plates 124. Outer columns 127 are fixedly connected to the outer sides of the two sets of reversing wheels 125. Connecting rods 126 are rotatably connected to both ends of the pressing rod 122. An outer ring sleeve 128 is rotatably connected to one end of the connecting rod 126. The outer ring sleeve 128 rotatably connects to... The outer column 127 is attached to the inner column 127 so that when the end of the pressing rod 122 near the connecting rod 126 is raised, the connecting rod 126, the outer ring sleeve 128 and the outer column 127 can drive the reversing wheel 125 to rotate. The inner column 129 is fixedly connected to the opposite side of the two sets of reversing wheels 125. The inner ring sleeve 1210 is rotatably connected to the outer side of the two sets of inner columns 129. The driving rod 1211 is fixedly connected to the bottom of the two sets of inner ring sleeves 1210. The pressure plate 1212 is fixedly connected to the bottom of the two sets of driving rods 1211. It can press the temperature sensing end 4 tightly against the thermostat 7, thereby achieving a better detection effect.

[0031] Furthermore, a protective pad 1213 is fixedly connected to the bottom of the pressure plate 1212. The protective pad 1213 is made of rubber, which can provide good protection for the temperature sensing end 4 when it is pressed together.

[0032] Furthermore, latches 10 are provided on both sides of the display terminal 9 to increase the stability of the connection and improve the performance.

[0033] Furthermore, four sets of foot pads 11 are fixedly connected to the bottom of the base 1, which can provide better support.

[0034] The implementation principle of this embodiment is as follows: During full inspection, each detection cable 2 is attached with a corresponding identification mark (1, 2, 3...). Multiple plug terminals 3 of the detection cable 2 are inserted into the corresponding wiring slots 6. Then, multiple temperature sensing terminals 4 are attached to the thermostat 7 in sequence. The thermostat 7 maintains a constant temperature of 50°C during use. After the corresponding temperature sensing terminals 4 detect the temperature, their temperature signals are transmitted to the detection circuit board through the detection cable, and then transmitted to the display screen through the display terminal 9 and ribbon cable. The temperature detection lines on the detection cable 2 can be identified. When the sensor line markings are correct, the detection can be passed.

[0035] The above detection method takes two-channel temperature detection as an example: When detecting two channels, the temperature sensing end 4 with the identification mark is first attached to the thermostat 7 for temperature rise detection. After it reaches the specified temperature, the temperature sensing end 4 without the identification mark is attached to the thermostat 7 for temperature rise detection. When the detection sequence is consistent with the preset, the display shows that the detection has passed. If the detection sequence is inconsistent with the preset, it indicates that the identification mark on the detection cable 2 is incorrectly installed, so that it can be detected and corrected in time.

[0036] The above detection method takes three-channel temperature detection as an example: When detecting three channels, the temperature sensing end 4 marked with (number 1) is first attached to the thermostat 7 for temperature rise detection. After it reaches the specified temperature, the temperature sensing end 4 marked with (number 2) is attached to the thermostat 7 for temperature rise detection. Finally, the temperature sensing end 4 marked with (number 3) is attached to the thermostat 7 for temperature rise detection. When the detection sequence is consistent with the preset sequence, the display screen shows that the detection has passed. If the detection sequence is inconsistent with the preset sequence, it indicates that the identification mark on the detection cable 2 is incorrectly installed, so that it can be detected and corrected in time.

[0037] Furthermore, while attaching the temperature sensing end 4 to the thermostat 7, the operator can simultaneously press down on the middle of the pressing rod 122, causing both ends of the pressing rod 122 to lift up. This causes the reversing wheel 125 to rotate via the connecting rod 126. As the reversing wheel 125 rotates, the pressure plate 1212 moves downward via the drive rod 1211, thereby pressing the temperature sensing end 4 against the top of the thermostat 7 through the protective pad 1213, resulting in better detection. After detection, the pressing rod 122 returns to its original position under the action of the spring 123, allowing the temperature sensing end 4 to be directly removed from the thermostat 7 for subsequent assembly.

[0038] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-channel temperature sensor detection fixture, comprising a base (1) and a detection cable (2), characterized in that: The detection cable (2) has multiple sets of plug terminals (3) connected to one end and multiple sets of temperature sensing terminals (4) connected to the other end. A detection circuit board (5) is provided on the top of the base (1). Multiple sets of wiring slots (6) adapted to the plug terminals (3) are provided on the detection circuit board (5). A thermostat (7) is also provided on the detection circuit board (5). A top cover (8) is also provided on the base (1). A display terminal (9) is also provided on the detection circuit board (5).

2. The multi-channel temperature sensor detection fixture according to claim 1, characterized in that: The detection circuit board (5) is also provided with a locking mechanism (12), which is located near the thermostat (7).

3. The multi-channel temperature sensor detection fixture according to claim 2, characterized in that: The tightening mechanism (12) includes two sets of support rods (121) and support plates (124). A pressing rod (122) is rotatably mounted on each of the two sets of support rods (121). Two sets of springs (123) are fixedly connected to the bottom of the pressing rod (122). The bottom ends of the two sets of springs (123) are fixedly connected to the top of the detection circuit board (5). Reversing wheels (125) are rotatably connected to opposite sides of each of the two sets of support plates (124). Outer columns (127) are fixedly connected to the outer sides of the two sets of reversing wheels (125). The pressing rod (122) has two... Each end is rotatably connected to a connecting rod (126), and an outer ring sleeve (128) is rotatably connected to one end of the connecting rod (126). The outer ring sleeve (128) is rotatably connected to an outer column (127). An inner column (129) is fixedly connected to the opposite side of each of the two sets of reversing wheels (125). An inner ring sleeve (1210) is rotatably connected to the outer side of each of the two sets of inner columns (129). A drive rod (1211) is fixedly connected to the bottom of each of the two sets of inner ring sleeves (1210). A pressure plate (1212) is fixedly connected to the bottom end of each of the two sets of drive rods (1211).

4. A multi-channel temperature sensor detection fixture according to claim 3, characterized in that: The bottom of the pressure plate (1212) is also fixedly connected to a protective pad (1213), which is made of rubber.

5. A multi-channel temperature sensor detection fixture according to claim 1, characterized in that: The display terminal (9) is provided with buckles (10) on both sides, and four sets of foot pads (11) are fixedly connected to the bottom of the base (1).

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