Combined SMD (Surface Mounted Device) thermistor

Abstract

The utility model discloses a combined type surface-mounted thermistor. The surface-mounted thermistor aims to solve the technical problem that a plurality of surface-mounted thermistors are inconvenient to be connected in series and combined conveniently in the prior art. Comprising a frame, fixing plates are fixedly connected to the left side wall and the right side wall of the frame respectively, top plates are symmetrically arranged on the inner side of the frame, two springs are fixedly connected to the side wall of the side, close to the fixing plates, of each top plate, and the other ends of the springs are fixedly connected with the fixing plates; conducting rods are fixedly connected to the corners in the frame, the wires are fixedly connected with the conducting rods, and an assembling assembly is arranged on the side wall of the frame. According to the scheme, the resistors can be conveniently connected in series, so that the space occupied by the resistors on the circuit board can be saved, and the development of the circuit board circuit is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic components, and in particular relates to a combined chip thermistor. Background Art

[0002] The chip thermistor is a resistor device whose resistance value changes with temperature. In the fields of industrial control, electronic equipment, etc., it is often necessary to measure and control temperature. The chip thermistor is a commonly used temperature detection element. It has the advantages of small size, light weight, fast response speed, etc., and can be widely used in temperature sensors and control circuits;

[0003] Usually, in circuit board welding, multiple chip thermistors are required to be used in series. Due to the small size of chip thermistors, it is not easy to ensure the accuracy of each resistor position during the welding process. In addition, traditional chip resistors are generally laid flat on the circuit board, which easily takes up a lot of space, is not conducive to the development and spatial layout of the circuit board, and increases the difficulty of circuit board design.

[0004] Therefore, a new type of postoperative decompression pillow for posterior fossa surgery is designed to change the above technical defects. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a combined chip thermistor, which is intended to solve the technical problem that it is not convenient to conveniently connect multiple chip thermistors in series under the prior art.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a combined chip thermistor, including a frame, the left and right side walls of the frame are respectively fixedly connected with fixed plates, a top plate is symmetrically arranged on the inner side of the frame, two springs are fixedly connected to the side wall of the top plate close to the fixed plate, the other ends of the springs are fixedly connected to the fixed plate, the side wall on the opposite side of the top plate is fixedly connected with a conductive plate, the side wall of the conductive plate is fixedly connected with a wire, a conducting rod is fixedly connected at the corner inside the frame, the wire is fixedly connected to the conducting rod, and an assembly component is arranged on the side wall of the frame.

[0009] Furthermore, the assembly assembly includes a plurality of metal rods fixedly connected to the bottom surface of the frame, the metal rods are fixedly connected to the lower conductive rods, a plurality of positioning holes are opened on the top surface of the frame, the upper conductive rods extend into the positioning holes, and the metal rods are adapted to the positioning holes. Multiple frames can be connected to each other so that the resistors are in a series state.

[0010] Furthermore, the side walls of the top plate are fixedly connected with limit rods, the cross section of the limit rods is T-shaped, and the limit rods penetrate the fixed plate and are movably connected thereto. The limit rods can be provided to limit the top plate and ensure the stability of the top plate when it is tightened.

[0011] Furthermore, the top plate is arranged in a U shape, and the rear side walls of the top plate are fixedly connected with baffles. By being arranged in a U shape, it is convenient to limit the position of the resistor to prevent the resistor from falling off.

[0012] Furthermore, hooks are fixedly connected near the bottom of the left and right side walls of the frame, and slots are provided near the top of the left and right side walls of the frame, and the hooks and slots match each other, which can effectively ensure the connection stability between the frames and avoid problems such as poor contact and short circuit.

[0013] Furthermore, a plurality of anti-sliding blocks are fixedly connected to the side walls of the hooks. The anti-sliding blocks can increase the friction between the hooks and the hand, making it easier to separate the frames.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model can facilitate the direct assembly of the chip thermistor between the top plates on both sides through the design of the frame, the top plate, the conducting rod, the metal rod and the positioning hole. By utilizing the force of the spring, the conductive plate is closely attached to the resistor electrode, thus effectively avoiding the traditional welding steps. On the other hand, a plurality of frames can be conveniently connected, so that the resistors can be conveniently connected in series, which can save the space occupied by the resistors on the circuit board and facilitate the development of circuit board lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the framework combination of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the frame assembly of the utility model when viewed from above;

[0019] Figure 3 It is a structural schematic diagram of a single frame of the utility model;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of the framework of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the top plate of the utility model;

[0022] Figure 6 For this utility model Figure 2 Enlarged view of point A in .

[0023] The markings in the attached drawings are: 1. frame; 2. fixing plate; 3. top plate; 4. spring; 5. conductive plate; 6. wire; 7. conduction rod; 8. limit rod; 9. baffle; 10. metal rod; 11. positioning hole; 12. hook; 13. slot; 14. anti-sliding block. DETAILED DESCRIPTION

[0024] This specific implementation is a combined chip thermistor, and its structural diagram is as follows Figure 1-Figure 6 As shown, it includes a frame 1, and the left and right side walls of the frame 1 are respectively fixedly connected with a fixing plate 2, a top plate 3 is symmetrically arranged on the inner side of the frame 1, the top plate 3 is U-shaped, and the rear side walls of the top plate 3 are fixedly connected with a baffle 9, the side wall of the top plate 3 close to the fixing plate 2 is fixedly connected with two springs 4, and the other ends of the springs 4 are fixedly connected with the fixing plate 2, the side wall on the opposite side of the top plate 3 is fixedly connected with a conductive plate 5, and the side wall of the conductive plate 5 is fixedly connected with a wire 6, a conducting rod 7 is fixedly connected at the corner inside the frame 1, and the wire 6 is fixedly connected to the conducting rod 7, and an assembly component is arranged on the side wall of the frame 1.

[0025] The conducting rod 7 and the conducting plate 5 are both made of metal and are used to conduct the resistance electrodes to facilitate the flow of current.

[0026] like Figure 4 As shown, the assembly component includes a plurality of metal rods 10 fixedly connected to the bottom surface of the frame 1, the metal rods 10 are fixedly connected to the lower conductive rods 7, a plurality of positioning holes 11 are opened on the top surface of the frame 1, the upper conductive rods 7 extend into the positioning holes 11, and the metal rods 10 are adapted to the positioning holes 11.

[0027] Specifically, the metal rod 10 has a conductive property. When the metal rod 10 is inserted into the positioning hole 11, the series connection between the metal rod 10, the conducting rod 7 and the wire 6 facilitates the use of multiple resistors in series. At the same time, the traditional step of welding the resistors can be avoided, thereby improving the convenience of using the resistor combination.

[0028] like Figure 3 and Figure 4 As shown, the side walls of the top plate 3 are fixedly connected with a limiting rod 8, the cross section of the limiting rod 8 is T-shaped, and the limiting rod 8 passes through the fixed plate 2 and is movably connected thereto.

[0029] The limit rod 8 supports and positions the top plate 3. When the resistor is inserted between the top plates 3 on both sides, the top plate 3 is pushed to open to both sides. At the same time, the elastic force of the spring 4 is used to make the top plate 3 press against the resistor to achieve effective connection of the resistor.

[0030] like Figure 4 and Figure 6As shown, the left and right side walls of the frame 1 are fixedly connected with hooks 12 near the bottom, and the left and right side walls of the frame 1 are provided with slots 13 near the top, and the hooks 12 match the slots 13. The side walls of the hooks 12 are fixedly connected with a plurality of anti-sliding blocks 14.

[0031] The hook 12 and the slot 13 are conventional structures for installing existing circuit connectors and are mature technologies, so they will not be described in detail in this solution.

[0032] Working principle: First, weld the metal rod 10 on the bottom frame 1 to the circuit board. When the chip thermistor needs to be installed, insert the resistor directly between the top plates 3 on both sides. Use the force of the spring 4 to clamp the top plate 3 to make it close to the conductive plate 5. Use the baffle 9 to position the resistor to prevent it from falling off. When multiple resistors need to be combined in series, directly insert the metal rod 10 on another frame 1 into the lower positioning hole 11 to connect the metal rod 10 with the conductive rod 7 to achieve series connection between the resistors. At the same time, insert the hook 12 into the slot 13 to prevent the frame 1 from falling off or poor contact, thereby improving the combination stability between the resistors.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A combined chip thermistor, comprising a frame (1), characterized in that: The left and right side walls of the frame (1) are respectively fixedly connected to fixed plates (2); a top plate (3) is symmetrically arranged inside the frame (1); two springs (4) are fixedly connected to the side wall of the top plate (3) close to the fixed plate (2); the other ends of the springs (4) are fixedly connected to the fixed plate (2); a conductive plate (5) is fixedly connected to the side wall of the top plate (3) opposite to the top plate (3); a wire (6) is fixedly connected to the side wall of the conductive plate (5); a conducting rod (7) is fixedly connected to the inside of the frame (1) at a corner; the wire (6) is fixedly connected to the conducting rod (7); and an assembly component is arranged on the side wall of the frame (1).

2. A combined chip thermistor according to claim 1, characterized in that: The assembly component comprises a plurality of metal rods (10) fixedly connected to the bottom surface of the frame (1), the metal rods (10) being fixedly connected to the lower conductive rods (7), a plurality of positioning holes (11) being provided on the top surface of the frame (1), the upper conductive rods (7) extending into the positioning holes (11), and the metal rods (10) being adapted to the positioning holes (11).

3. The combined chip thermistor according to claim 1, characterized in that: The side walls of the top plate (3) are fixedly connected to limiting rods (8), the cross section of the limiting rods (8) is T-shaped, and the limiting rods (8) penetrate the fixed plate (2) and are movably connected thereto.

4. The combined chip thermistor according to claim 1, characterized in that: The top plate (3) is U-shaped, and the rear side walls of the top plate (3) are fixedly connected with baffles (9).

5. The combined chip thermistor according to claim 1, characterized in that: The left and right side walls of the frame (1) are fixedly connected with hooks (12) near the bottom ends, and the left and right side walls of the frame (1) are provided with slots (13) near the top surfaces, and the hooks (12) and the slots (13) match each other.

6. The combined chip thermistor according to claim 5, characterized in that: A plurality of anti-sliding blocks (14) are fixedly connected to the side walls of the hook (12).

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