A bus duct temperature measuring device with adjustable probe spacing

Abstract

The present invention relates to a bus duct temperature measuring device with adjustable probe spacing, belonging to the technical field of bus duct temperature measurement. The device comprises an upper shell (1), a circuit board (2) and a lower shell (6), wherein a guide rail (7) is provided on the lower shell (6), and a temperature measuring probe (5) and a sliding switch (4) with clearance fit are installed on the guide rail (7); a locking member (3) is also installed on the lower shell (6). The bus duct temperature measuring device with adjustable probe spacing of the present invention has a reasonable structure, an adjustable spacing of the temperature measuring probes, a wide range of applications, and greatly reduces the production cost and the time cost of monitoring different bus ducts.

Description

Technical Field

[0001] The invention relates to a bus duct temperature measuring device with adjustable probe spacing, belonging to the technical field of bus duct temperature measurement. Background Art

[0002] Under the existing technology, the temperature measuring probe spacing of most bus duct temperature measuring devices is fixed, and can only be applied to bus ducts with the same spacing. If the spacing between the phases of the bus duct on site is different from the spacing between the probes of the device, it cannot be used, and the device with matching probe spacing needs to be reconfigured, which has great installation limitations and poor compatibility. For example, Chinese patent 201721062804.X discloses a busbar connector wireless temperature measuring device, in which a plug that is plugged into the bus duct conductor is provided at the bottom of the shell, and a temperature sensor is provided on the plug; a display screen is provided on the upper part of the shell panel, an adjustment button and a control switch are provided in the middle of the panel, and a temperature sensor is provided on the lower part of the panel. A warning indicator light and a marking area are arranged inside the shell; the signal transmission module inside the shell is directly connected to the temperature sensor and the display screen, and is connected to the bus duct system control center through a wireless communication connection; the control module is connected to the warning indicator light through the warning module, and is connected to the adjustment button and the control switch to adjust the parameters and control the switch status; the temperature rise inside the bus duct is detected while the pins and the bus duct conductors are plugged in to take power, and an alarm message is issued immediately when the temperature value or the temperature rise rate exceeds the standard; however, the patent temperature measuring probes have a fixed spacing and can only be applied to bus ducts with the same spacing, and the scope of application is limited.

[0003] In view of the above situation, a Chinese patent with publication number CN205178430U discloses a temperature measuring bus duct, including a lower cover plate, a conductor, an upper cover plate, a temperature measuring circuit board and a temperature sensor, wherein two insulating side plates are fixed between the upper cover plate and the lower cover plate, and a limiting groove is provided on the inner side of the insulating side plate, and a bottom resin insulating gasket and a top resin insulating gasket are provided in the limiting groove, and insulating partitions and conductors distributed at intervals are provided between the bottom resin insulating gasket and the top resin insulating gasket, and a temperature sensor is connected to the top of the conductor, and the temperature sensor is slidably arranged in the temperature measuring terminal, and the temperature sensor is connected to the temperature measuring circuit board through a communication wire, and the temperature sensor is slidably arranged in the temperature measuring terminal, and a spring connected to the temperature sensor is installed in the temperature measuring terminal to achieve initial sliding; however, due to the structure of using a spring to connect the temperature sensor, the spring itself has a limitation on the sliding range, and due to the existence of elastic deformation, its sliding range is small, and the application range is poor.

[0004] The Chinese patent with publication number CN107607208A also discloses a bus duct joint temperature measuring device, including a fixed guide rail, a temperature sensor fixture and a temperature acquisition terminal, wherein a temperature sensor fixture is arranged on the fixed guide rail, and the temperature sensor fixture can slide along the fixed guide rail; a temperature sensor is installed on the temperature sensor fixture, the fixed guide rail is placed on the bus duct joint, and the temperature sensor is located between the metal plates inside the bus duct joint to collect the temperature of the bus; the temperature sensor is connected to the temperature acquisition terminal located above the fixed guide rail through a wiring terminal; this patent can facilitate the installation of the temperature sensor, but it uses a temperature sensor fixture to cooperate with the fixed guide rail to slide , and its clamp includes a movable part, a long button, an upper cover, a straight spring and a clamping body; the movable part is a hollow structure, and the interior is divided into three parts: an upper section, a middle section and a lower section; a straight spring is arranged in the upper section, and the lower section is connected to a clamping body for fixing a temperature sensor; the upper part of the movable part is connected to the fixed guide rail and can slide along the slide groove of the fixed guide rail, and an upper cover is also installed on the top of the movable part; the long button is a hollow cylinder, and an annular boss is arranged on the outer surface; the long button is located inside the movable part, and the annular boss contacts the upper part of the straight spring; it can be seen that the structure of the clamp is relatively complicated. Although the use of the clamp can make the temperature sensor slide along the fixed guide rail, the manufacturing cost is greatly increased.

[0005] Therefore, it is urgent to provide a bus duct temperature measuring device with a reasonable structure and adjustable probe spacing. Summary of the invention

[0006] The purpose of the present invention is to solve the problems raised in the above background issues and to provide a bus duct temperature measuring device with adjustable probe spacing. It has a reasonable structure, adjustable spacing of temperature measuring probes, a wide range of applications, and greatly reduces the production cost and time cost of monitoring different bus ducts.

[0007] The object of the present invention is achieved as follows: A bus duct temperature measuring device with adjustable probe spacing comprises an upper shell, a circuit board and a lower shell, wherein a guide rail is arranged on the lower shell, and a temperature measuring probe and a sliding switch with a clearance fit are installed on the guide rail;

[0008] A locking piece is also installed on the lower shell.

[0009] The guide rail is composed of two guide rails arranged in parallel;

[0010] The bottom of the sliding switch is provided with a groove matching the guide rail structure.

[0011] The top of the sliding switch is provided with a U-shaped groove, and a protrusion is provided to match the structure of the temperature measuring probe;

[0012] The temperature measuring probe is installed in the sliding switch through the cooperation of the U-shaped groove and the protrusion and is in clearance cooperation with the sliding switch.

[0013] One end of the sliding switch is also provided with a positioning block facing downward, and a positioning groove is matched on the lower shell.

[0014] A scale is also arranged above the positioning groove.

[0015] The lower shell is also matched with a sliding groove for the temperature measuring probe to slide.

[0016] The locking piece is fixed to the lower shell by a snap-fit ​​structure, and the sliding switch is installed between the locking piece and the lower shell. The locking piece has a spring sheet structure, and the spring sheet structure is arc-shaped. After installation, the spring sheet structure forms an interference fit with the sliding switch, so that the sliding switch has a damping effect.

[0017] The locking piece is installed by snap-fitting.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The bus duct temperature measuring device with adjustable probe spacing of the present invention adopts a sliding structure, so that it has the function of adjusting the probe spacing and is compatible with bus ducts with different spacings, thereby reducing the effect of on-site installation requirements;

[0020] The bus duct temperature measuring device with adjustable probe spacing of the present invention is also provided with a scale, which facilitates the targeted adjustment of the bus duct spacing and greatly saves time cost;

[0021] The bus duct temperature measuring device with adjustable probe spacing of the present invention has reasonable structure, convenient manufacturing and reduced manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the disassembled structure of a bus duct temperature measuring device with adjustable probe spacing.

[0023] Figure 2 The present invention is a schematic diagram of the cooperation between a temperature measuring probe and a sliding switch of a bus duct temperature measuring device with adjustable probe spacing.

[0024] Figure 3 This is a schematic diagram of the position of the temperature measuring probe and the sliding module of a bus duct temperature measuring device with adjustable probe spacing of the present invention installed on the lower shell.

[0025] Figure 4 The present invention is a schematic diagram of the installation of a locking member of a bus duct temperature measuring device with adjustable probe spacing.

[0026] Figure 5The present invention is a bottom view of the lower shell of a bus duct temperature measuring device with adjustable probe spacing.

[0027] Figure 6 This is a view of the cooperation between a locking piece and a sliding block of a bus duct temperature measuring device with adjustable probe spacing according to the present invention.

[0028] Among them: 1. Upper shell; 2. Circuit board; 3. Locking piece; 4. Sliding switch; 5. Temperature probe; 6. Lower shell; 7. Guide rail; 8. Scale; 9. Sliding slot;

[0029] 3.1, Spring sheet structure;

[0030] 4.1, U-shaped groove; 4.2, protrusion; 4.3, positioning block;

[0031] 6.1. Positioning groove. DETAILED DESCRIPTION

[0032] The present invention is described below in conjunction with the accompanying drawings and specific embodiments:

[0033] like Figures 1 to 6 As shown, a bus duct temperature measuring device with adjustable probe spacing includes an upper shell 1, a circuit board 2 and a lower shell 6, wherein a guide rail 7 is provided on the lower shell 6, and a temperature measuring probe 5 and a sliding switch 4 with a clearance fit are installed on the guide rail 7;

[0034] A locking member 3 is also installed on the lower shell 6 .

[0035] The guide rail 7 is composed of two guide rails arranged in parallel;

[0036] The bottom of the sliding switch 4 is provided with a groove matching the structure of the guide rail 7 .

[0037] The top of the sliding switch 4 is provided with a U-shaped groove 4.1, and a protrusion 4.2 is provided to match the structure of the temperature measuring probe 5;

[0038] The temperature measuring probe 5 is installed in the sliding switch 4 through the cooperation of the U-shaped groove 4.1 and the protrusion 4.2 and is in clearance cooperation with the sliding switch 4.

[0039] One end of the sliding switch 4 is also provided with a downward positioning block 4.3, and a positioning groove 6.1 is matched on the lower shell 6.

[0040] A scale 8 is also provided above the positioning groove 6.1.

[0041] The lower shell 6 is also matched with a sliding groove 9 for the temperature measuring probe 5 to slide.

[0042] In this embodiment, the locking member 3 is fixed to the lower shell 6 by a snap-fit ​​structure, and the sliding switch 4 is installed between the locking member 3 and the lower shell 6. The locking member 3 has a spring sheet structure 3.1, and the spring sheet structure 3.1 is arc-shaped. After installation, the spring sheet structure and the sliding switch 4 form an interference fit, so that the sliding switch has a damping effect.

[0043] In this embodiment, the locking member 3 is installed by snapping.

[0044] The above are only specific application examples of the present invention and do not constitute any limitation on the protection scope of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A bus duct temperature measuring device with adjustable probe spacing, comprising an upper shell (1), a circuit board (2) and a lower shell (6), characterized in that: The lower shell (6) is provided with a guide rail (7), and a temperature measuring probe (5) and a sliding switch (4) with a clearance fit are installed on the guide rail (7); a locking member (3) is also installed on the lower shell (6); The top of the sliding switch (4) is provided with a U-shaped groove (4.1), and a protrusion (4.2) is provided to match the structure of the temperature measuring probe (5); the temperature measuring probe (5) is installed in the sliding switch (4) through the cooperation of the U-shaped groove (4.1) and the protrusion (4.2) and is clearance-matched with the sliding switch (4); A downwardly oriented positioning block (4.3) is also provided at one end of the sliding switch (4), and a matching positioning groove (6.1) is provided on the lower shell (6); a scale (8) is also provided above the positioning groove (6.1); The locking member (3) is fixed to the lower shell (6) via a snap-fit ​​structure, and the sliding switch (4) is installed between the locking member (3) and the lower shell (6). The locking member (3) has a spring sheet structure (3.1), and the spring sheet structure (3.1) is in an arc shape. After installation, the spring sheet structure and the sliding switch (4) form an interference fit.

2. A bus duct temperature measuring device with adjustable probe spacing according to claim 1, characterized in that: The guide rail (7) is composed of two guide rails arranged in parallel; a groove is provided at the bottom of the sliding switch (4) to match the structure of the guide rail (7).

3. The bus duct temperature measuring device with adjustable probe spacing according to claim 1 is characterized in that: The lower shell (6) is also matched with a sliding groove (9) for the temperature measuring probe (5) to slide.

4. The bus duct temperature measuring device with adjustable probe spacing according to claim 1 is characterized in that: The locking member (3) is installed by means of a snap-fit.

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