Fixing assembly of combined power resistor

Abstract

The invention relates to the technical field of resistance detection, and provides a fixing assembly of a combined power resistor, which comprises a mounting plate, a detector is arranged below the mounting plate, a socket is formed in the top end of the detector, an electrode is arranged in an inner cavity of the socket, the mounting plate is used for fixing a thermistor, and a fixing mechanism is arranged on the mounting plate. And a connecting mechanism. By arranging the fixing mechanism and the connecting mechanism, when the thermistor is fixed, the thermistor is placed in a placing groove, a fluted disc is rotated after the thermistor is fixed, two clamping blocks are driven to get close to each other to clamp the thermistor, at the moment, the clamping blocks are clamped with the fluted disc under the elastic force action of a connecting spring, and at the moment, the clamping blocks are automatically fixed; the thermistor is prevented from loosening; when the mounting plate is mounted on the detector, the pins of the thermistors enter the sockets, the pins are in contact with the electrodes, the thermistors are detected, batch detection of a plurality of thermistors is facilitated, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of resistance detection technology, and particularly relates to a fixed component for a combined power resistor. Background Technology

[0002] A thermistor is a type of sensor resistor whose resistance changes with temperature. Based on their temperature coefficient, they are classified into positive temperature coefficient (PTC) thermistors and negative temperature coefficient (NTC) thermistors. The resistance of a PTC thermistor increases with increasing temperature, while the resistance of a NTC thermistor decreases with increasing temperature. Both are semiconductor devices. When the circuit is operating normally, the thermistor's temperature is close to room temperature, and its resistance is very low, so it does not impede current flow when connected in series in the circuit. However, when an overcurrent occurs due to a circuit fault, the thermistor's temperature rises due to increased heating power. When the temperature exceeds the switching temperature, the resistance increases dramatically, and the current in the circuit rapidly decreases to a safe value.

[0003] When testing thermistors, a thermistor detector is usually used. Thermistor detectors are thermal conductivity detectors that use semiconductor thermistors as the thermal element. Because thermistors have high resistance, high temperature coefficient, and small size, the detectors have high sensitivity. When testing, the thermistor's pins need to be inserted into the socket of the testing instrument. After the pins are connected to the electrodes, the thermistor is tested.

[0004] However, when testing thermistors, only one thermistor can be tested sequentially, resulting in low testing efficiency. In order to test multiple thermistors in batches at the same time, a fixed component of combined power resistors is provided. Summary of the Invention

[0005] This invention provides a fixed assembly for a combined power resistor, which aims to solve the problem that existing thermistor detectors can only detect individual thermistors sequentially, resulting in low detection efficiency.

[0006] The present invention is implemented as follows: a fixed assembly for a combined power resistor includes a mounting plate, a detector is disposed below the mounting plate, a socket is provided at the top of the detector, an electrode is disposed in the inner cavity of the socket, the mounting plate is fixed to a thermistor by a fixing mechanism, and a pin is provided at the bottom of the thermistor.

[0007] The top of the mounting plate has a placement groove, and a clamping block extending into the placement groove is slidably connected inside the mounting plate. A movable plate is fixedly connected to the outer wall of the clamping block, and a threaded rod passing through the movable plate is rotatably connected inside the mounting plate. A gear plate is fixedly connected to the outer wall of the threaded rod.

[0008] Preferably, the fixing mechanism further includes a C-shaped frame, which is fixedly connected to the top of the mounting plate. A locking block is slidably connected inside the C-shaped frame, and a connecting spring connects the locking block and the C-shaped frame.

[0009] Preferably, the connecting mechanism includes a connecting block, which is fixedly connected to both ends of the mounting plate. The top two ends of the detector are provided with connecting grooves, and the inner wall of the connecting groove is provided with a fixing groove. A fixing block extending out of the connecting block is slidably connected inside the connecting block. A fixing spring is connected between the fixing block and the connecting block. A pressure rod is slidably connected inside the connecting block at the top of the fixing block.

[0010] Preferably, the connecting mechanism further includes a connecting plate, which is fixedly connected to the side of the clamping block away from the movable plate. A rotating rod is rotatably connected inside the mounting plate on one side of the connecting plate. A semi-circular block is fixedly connected to the outer wall of the rotating rod. Spur gears are fixedly connected to both ends of the rotating rod. A pressure plate extending out of the connecting block is slidably connected inside the connecting block. A return spring is connected between the pressure plate and the connecting block. A toothed plate is fixedly connected to the top of the pressure plate, and the toothed plate contacts the spur gear.

[0011] Preferably, one end of the clamping block matches the outer wall of the thermistor, and the bottom end of the C-shaped frame engages with the outer wall of the gear disc.

[0012] Preferably, the outer wall of the movable plate is provided with a threaded hole, and the outer wall of the threaded rod is symmetrically provided with external threads, the external threads matching the threaded hole.

[0013] Preferably, the outer wall of the connecting block is in contact with the inner wall of the connecting groove, and the outer wall of the fixing block is in contact with the inner wall of the fixing groove.

[0014] Preferably, the top of the fixing block is provided with a first inclined surface, and the bottom end of the pressing rod is in contact with the first inclined surface.

[0015] Preferably, the bottom end of the portion of the pressure plate extending from the connecting block is provided with a second inclined surface, the inclined surface facing downwards.

[0016] Preferably, the top end of the toothed plate is provided with a tooth groove, which meshes with the spur gear.

[0017] This invention discloses a fixing assembly for a combined power resistor, including a mounting plate. A detector is disposed below the mounting plate, and a socket is provided at the top of the detector. An electrode is disposed within the cavity of the socket. The mounting plate is used to fix a thermistor, and a pin is provided at the bottom of the thermistor. The mounting plate fixes the thermistor through a fixing mechanism, which includes a placement groove located at the top of the mounting plate. A clamping block extending into the cavity of the placement groove is slidably connected inside the mounting plate. A movable plate is fixedly connected to the outer wall of the clamping block. A threaded rod passing through the movable plate is rotatably connected inside the mounting plate, and a gear plate is fixedly connected to the outer wall of the threaded rod. The mounting plate is fixedly connected to the detector through a connecting mechanism. Compared with the prior art, the embodiments of this application, by setting up a fixing mechanism and a connecting mechanism, allow the thermistor to be fixed by placing it in the placement slot. After that, the gear disk is rotated, which drives the two clamping blocks to come closer together to clamp the thermistor. At this time, the clamping blocks are engaged with the gear disk by the elastic force of the connecting spring, thus automatically fixing the clamping blocks and preventing the thermistor from loosening. When the mounting plate is installed on the detector, the pins of the thermistor enter the socket and contact the electrodes to detect the thermistor. This facilitates batch testing of multiple thermistors and improves the detection efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure provided by the present invention;

[0019] Figure 2 This is a schematic diagram of the installation of the mounting plate provided by the present invention;

[0020] Figure 3 This is a cross-sectional view of the mounting plate provided by the present invention;

[0021] Figure 4 This invention provides Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the clamping block provided by the present invention;

[0023] Figure 6 This is a schematic diagram of the installation of the pressure plate provided by the present invention;

[0024] Figure 7 This is a schematic diagram of the installation of the fixing block provided by the present invention.

[0025] In the diagram: 1. Mounting plate; 2. Detector; 3. Socket; 4. Thermistor; 5. Pin; 6. Fixing mechanism; 601. Placement slot; 602. Clamping block; 603. Movable plate; 604. Threaded rod; 605. Gear plate; 606. C-shaped frame; 607. Locking block; 608. Connecting spring; 7. Connecting mechanism; 701. Connecting block; 702. Connecting slot; 703. Fixing slot; 704. Fixing block; 705. Fixing spring; 706. Downward pressure rod; 707. Connecting plate; 708. Rotating rod; 709. Semicircular block; 710. Spur gear; 711. Pressure plate; 712. Return spring; 713. Gear plate. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] This invention provides a fixing assembly for a combined power resistor, such as... Figure 1-7As shown, the device includes a mounting plate 1, a detector 2 located below the mounting plate 1, a socket 3 at the top of the detector 2, and electrodes inside the socket 3. The mounting plate 1 is used to fix a thermistor 4, which has pins 5 at its bottom. The mounting plate 1 is fixed to the thermistor 4 by a fixing mechanism 6. The fixing mechanism 6 includes a placement groove 601 located at the top of the mounting plate 1. A clamping block 602, extending into the cavity of the placement groove 601, is slidably connected inside the mounting plate 1. A movable plate 603 is fixedly connected to the outer wall of block 602. A threaded rod 604 passing through the movable plate 603 is rotatably connected inside the mounting plate 1. A gear 605 is fixedly connected to the outer wall of the threaded rod 604. The mounting plate 1 is fixedly connected to the detector 2 through the connecting mechanism 7. The fixing mechanism 6 also includes a C-shaped frame 606. The C-shaped frame 606 is fixedly connected to the top of the mounting plate 1. A locking block 607 is slidably connected inside the C-shaped frame 606. A connecting spring 608 is connected between the locking block 607 and the C-shaped frame 606.

[0029] In this embodiment, when fixing the thermistor 4, the thermistor 4 is placed in the placement slot 601. After completion, the gear disk 605 is rotated. The rotation of the gear disk 605 drives the threaded rod 604 to rotate. The rotation of the threaded rod 604 drives the two movable plates 603 to move closer to each other. The displacement of the movable plates 603 drives the two clamping blocks 602 to move closer to each other to clamp the thermistor 4. At this time, the locking block 607 is engaged with the gear disk 605 by the elastic force of the connecting spring 608.

[0030] When the mounting plate 1 is installed on the detector 2, the pin 5 of the thermistor 4 enters the socket 3 and contacts the electrode to detect the thermistor 4.

[0031] In a further preferred embodiment of the present invention, such as Figure 2-7As shown, the connecting mechanism 7 includes a connecting block 701, which is fixedly connected to both ends of the mounting plate 1. Connecting grooves 702 are provided at both ends of the top of the detector 2. A fixing groove 703 is provided on the inner wall of the connecting groove 702. A fixing block 704 extending from the connecting block 701 is slidably connected inside the connecting block 701. A fixing spring 705 is connected between the fixing block 704 and the connecting block 701. A downward pressure rod 706 is slidably connected inside the connecting block 701 at the top of the fixing block 704. The connecting mechanism 7 also includes a connecting plate 707. 7 is fixedly connected to the side of the clamping block 602 away from the movable plate 603. The interior of the mounting plate 1 is rotatably connected to the side of the connecting plate 707. A semi-circular block 709 is fixedly connected to the outer wall of the rotating rod 708. Spur gears 710 are fixedly connected to both ends of the rotating rod 708. A pressure plate 711 extending out of the connecting block 701 is slidably connected inside the connecting block 701. A return spring 712 is connected between the pressure plate 711 and the connecting block 701. A toothed plate 713 is fixedly connected to the top of the pressure plate 711. The toothed plate 713 is in contact with the spur gear 710.

[0032] In this embodiment, when installing the mounting plate 1, the pressing rod 706 is pushed to move, and the displacement of the pressing rod 706 pushes the fixing block 704 to move. The fixing block 704 moves into the connecting block 701. After completion, the connecting block 701 is inserted into the connecting groove 702. After completion, the pressing rod 706 is released, and the fixing block 704 is displaced into the fixing groove 703 by the elastic force of the fixing spring 705, thus fixing the mounting plate 1.

[0033] When the connecting block 701 enters the connecting groove 702, the pressure plate 711 contacts the connecting groove 702, and the pressure plate 711 moves under force. The displacement of the pressure plate 711 drives the toothed plate 713 to move. The movement of the toothed plate 713 drives the spur gear 710 to rotate. The rotation of the spur gear 710 drives the rotating rod 708 to rotate. The rotation of the rotating rod 708 drives the semicircular block 709 to rotate. The semicircular block 709 rotates and contacts the connecting plate 707, thereby preventing the connecting plate 707 from moving, and thus automatically reinforcing the clamping block 602.

[0034] In a further preferred embodiment of the present invention, such as Figures 3-5 As shown, one end of the clamping block 602 matches the outer wall of the thermistor 4, the bottom end of the C-shaped frame 606 engages with the outer wall of the gear plate 605, the outer wall of the movable plate 603 is provided with a threaded hole, and the outer wall of the threaded rod 604 is symmetrically provided with external threads, which match the threaded hole.

[0035] In this embodiment, when fixing the thermistor 4, the thermistor 4 is placed in the placement slot 601. After completion, the gear disk 605 is rotated. The rotation of the gear disk 605 drives the threaded rod 604 to rotate. The rotation of the threaded rod 604 drives the two movable plates 603 to move closer to each other. The displacement of the movable plates 603 drives the two clamping blocks 602 to move closer to each other to clamp the thermistor 4. At this time, the locking block 607 is engaged with the gear disk 605 by the elastic force of the connecting spring 608.

[0036] In a further preferred embodiment of the present invention, such as Figure 2 , Figure 6 and Figure 7 As shown, the outer wall of the connecting block 701 is in contact with the inner wall of the connecting groove 702, the outer wall of the fixing block 704 is in contact with the inner wall of the fixing groove 703, the top of the fixing block 704 is provided with a first inclined surface, and the bottom end of the pressing rod 706 is in contact with the first inclined surface.

[0037] In this embodiment, when installing the mounting plate 1, the pressing rod 706 is pushed to move, and the displacement of the pressing rod 706 pushes the fixing block 704 to move. The fixing block 704 moves into the connecting block 701. After completion, the connecting block 701 is inserted into the connecting groove 702. After completion, the pressing rod 706 is released, and the fixing block 704 is displaced into the fixing groove 703 by the elastic force of the fixing spring 705, thus fixing the mounting plate 1.

[0038] In a further preferred embodiment of the present invention, such as Figures 2-7 As shown, the bottom end of the portion of the pressure plate 711 extending out of the connecting block 701 is provided with a second inclined surface, the inclined surface is downward, and the top end of the toothed plate 713 is provided with a tooth groove, which meshes with the spur gear 710.

[0039] In this embodiment, when the connecting block 701 enters the connecting groove 702, the pressure plate 711 contacts the connecting groove 702, and the pressure plate 711 moves under force. The displacement of the pressure plate 711 drives the toothed plate 713 to move. The movement of the toothed plate 713 drives the spur gear 710 to rotate. The rotation of the spur gear 710 drives the rotating rod 708 to rotate. The rotation of the rotating rod 708 drives the semicircular block 709 to rotate. The semicircular block 709 rotates and contacts the connecting plate 707, thereby preventing the connecting plate 707 from moving, and thus automatically reinforcing the clamping block 602.

[0040] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0041] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0042] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A fixed assembly for a combined power resistor, characterized in that, The device includes a mounting plate, a detector is disposed below the mounting plate, a socket is provided at the top of the detector, an electrode is disposed inside the socket, the mounting plate is fixed to the thermistor by a fixing mechanism, and the thermistor is provided with pins at the bottom. The top of the mounting plate has a placement groove, and a clamping block extending into the placement groove is slidably connected inside the mounting plate. A movable plate is fixedly connected to the outer wall of the clamping block, and a threaded rod passing through the movable plate is rotatably connected inside the mounting plate. A gear plate is fixedly connected to the outer wall of the threaded rod.

2. The fixing assembly of a combined power resistor as described in claim 1, characterized in that, The fixing mechanism also includes a C-shaped frame, which is fixedly connected to the top of the mounting plate. A locking block is slidably connected inside the C-shaped frame, and a connecting spring connects the locking block and the C-shaped frame.

3. The fixing assembly of a combined power resistor as described in claim 2, characterized in that, The connecting mechanism includes a connecting block, which is fixedly connected to both ends of the mounting plate. The top two ends of the detector are provided with connecting grooves, and the inner wall of the connecting groove is provided with a fixing groove. A fixing block extending out of the connecting block is slidably connected inside the connecting block. A fixing spring is connected between the fixing block and the connecting block. A pressure rod is slidably connected inside the connecting block at the top of the fixing block.

4. The fixing assembly of a combined power resistor as described in claim 3, characterized in that, The connecting mechanism further includes a connecting plate, which is fixedly connected to the side of the clamping block away from the movable plate. A rotating rod is rotatably connected to the inside of the mounting plate on one side of the connecting plate. A semi-circular block is fixedly connected to the outer wall of the rotating rod. Spur gears are fixedly connected to both ends of the rotating rod. A pressure plate extending from the connecting block is slidably connected inside the connecting block. A return spring is connected between the pressure plate and the connecting block. A toothed plate is fixedly connected to the top of the pressure plate, and the toothed plate contacts the spur gear.

5. The fixing assembly of a combined power resistor as described in claim 2, characterized in that, One end of the clamping block matches the outer wall of the thermistor, and the bottom end of the C-shaped frame engages with the outer wall of the gear disc.

6. The fixing assembly of a combined power resistor as described in claim 2, characterized in that, The outer wall of the movable plate is provided with a threaded hole, and the outer wall of the threaded rod is symmetrically provided with external threads, which match the threaded hole.

7. The fixing assembly of a combined power resistor as described in claim 4, characterized in that, The outer wall of the connecting block is in contact with the inner wall of the connecting groove, and the outer wall of the fixing block is in contact with the inner wall of the fixing groove.

8. The fixing assembly of a combined power resistor as described in claim 4, characterized in that, The top of the fixing block is provided with a first inclined surface, and the bottom end of the pressing rod is in contact with the first inclined surface.

9. The fixing assembly of a combined power resistor as described in claim 4, characterized in that, The bottom end of the portion of the pressure plate extending from the connecting block is provided with a second inclined surface, the inclined surface facing downwards.

10. The fixing assembly of a combined power resistor as described in claim 4, characterized in that, The top of the toothed plate is provided with a tooth groove, which meshes with the spur gear.

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