External lead mounting structure of thermosensitive resistor

Abstract

The utility model discloses an external lead mounting structure of a thermosensitive resistor, which relates to the technical field of temperature controller components and comprises a base and two connecting sheets which are arranged on the base, and one ends of the two connecting sheets are electrically connected with a load. The elastic pressing piece is arranged at the other end of the connecting piece, and the elastic pressing piece is kept in a separated state from the connecting piece under the action of the elastic force of the elastic pressing piece. According to the utility model, the elastic pressing sheet is arranged on the connecting sheet, so that the clamping space for clamping the metal wire is formed between the elastic pressing sheet and the connecting sheet, and the pressing component is matched to apply pressure to the elastic pressing sheet, so that the metal wire is clamped and fixed, and when the metal wire is disassembled, only the pressure of the pressing component to the elastic pressing sheet needs to be relieved; compared with the prior art, the metal wire clamping device has the advantages that the metal wire clamping device is favorable for mounting and dismounting, and meanwhile, the elastic pressing sheets can be used for many times and cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature controller components, in particular to an external wire installation structure of a thermistor. Background Art

[0002] The core component of a thermostat is a thermistor, a sensor whose resistance changes significantly with temperature. Current temperature-measuring thermistors are typically electrically connected to the circuit or load using metal wires on both sides. This metal wire installation method often has flaws, making it difficult to remove the thermistor and reuse it in other circuits.

[0003] For example, Chinese utility model patent CN217655820U discloses a thermostat thermistor mounting structure. This solution secures a connecting wire (metal wire) via a flexible connecting portion (connecting tube). Once the thermistor wire is inserted into the connecting tube, it is squeezed and deformed, thereby securing the wire within the tube. This mounting method has a significant drawback: it is difficult to reuse. This is a one-time mounting structure. Once the connecting wire is secured within the tube, it is difficult to remove. This is primarily because the deformation of the connecting tube is difficult to restore, causing the wire to become stuck within the tube and difficult to remove, making it impossible to reinstall the device. Consequently, it cannot be used multiple times. Utility Model Content

[0004] The purpose of the utility model is to provide an external wire installation structure for a thermistor to solve the technical problem raised in the above background art that the installation structure of the thermistor of the thermostat on the current market is difficult to disassemble and reuse.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a thermistor external wire installation structure, comprising:

[0006] A base and two connecting pieces provided on the base and having one end electrically connected to the load;

[0007] An elastic pressing piece provided at the other end of the connecting piece, wherein the elastic pressing piece is kept separated from the connecting piece under its own elastic force, so as to form a clamping space in the gap between the elastic pressing piece and the connecting piece, and the clamping space is used to clamp the metal wiring of the resistor body;

[0008] A pressure-applying component is used to apply pressure to the elastic pressing piece to reduce the clamping space.

[0009] As a preferred technical solution of the present utility model, the mounting structure further includes:

[0010] a pin provided at one end of the connecting piece;

[0011] A sleeve is provided at the upper end of the base for fixing the pin, and an electrode spring is provided at the bottom end of the sleeve and passes through the base. The electrode spring contacts and cooperates with the conductive sheet of the load to realize power transmission.

[0012] As a preferred technical solution of the present utility model, the base includes:

[0013] a bottom plate and an outer protective plate provided on the bottom plate;

[0014] A top cover is detachably connected to the outer protective plate.

[0015] As a preferred technical solution of the present utility model, the pressure-applying component includes:

[0016] a sleeve having one end fixedly disposed inside the top cover;

[0017] a movable rod slidably disposed in the inner cavity of the sleeve;

[0018] One end of the spring is fixed in the inner cavity of the sleeve, and the other end of the spring abuts against the movable rod to apply a thrust to the movable rod so as to abut against the elastic pressing piece.

[0019] As a preferred technical solution of the present invention, the elastic pressing plate is provided with at least two rolled pieces on one side thereof close to the connecting piece, and the rolled pieces are used to wrap the two sides of the metal wiring to form a limiting effect.

[0020] As a preferred technical solution of the present invention, the installation structure further includes: at least two clamping blocks provided on the upper end of the outer protective plate, and the clamping blocks are engaged with the clamping slots provided on the side walls of the top cover.

[0021] As a preferred technical solution of the present invention, the side wall of the top cover is provided with a side groove for the metal wiring to extend into.

[0022] As a preferred technical solution of the present invention, a bottom groove for the electrode spring to extend out is provided at the bottom end of the bottom plate.

[0023] As a preferred technical solution of the present invention, a mounting plate is provided at the bottom end of the sleeve, and the mounting plate is fixedly connected to the bottom plate.

[0024] As a preferred technical solution of the present invention, an inner enclosure plate for enclosing the sleeve is provided at the upper end of the base plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The utility model provides an elastic pressing piece on the connecting piece, so that a clamping space for clamping the metal wiring is formed between the elastic pressing piece and the connecting piece, and the pressure-applying component applies pressure to the elastic pressing piece to achieve clamping and fixing of the metal wiring. When disassembling, it is only necessary to release the pressure of the pressure-applying component on the elastic pressing piece, and the elastic pressing piece will reset under the action of its own elastic force, so that the metal wiring can be pulled out of the clamping space. Compared with the existing technology, it is not only convenient for installation and disassembly, but the elastic pressing piece can also be used multiple times without damage, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the external upper three-dimensional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model in the expanded state;

[0029] Figure 3 This is a schematic diagram of a partially cutaway three-dimensional structure of the present utility model;

[0030] Figure 4 For the utility model Figure 3 A in the middle is an enlarged structural diagram;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the bottom of the top cover of the utility model;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting piece of the utility model;

[0033] Figure 7 It is a schematic diagram of the external bottom three-dimensional structure of the utility model.

[0034] In the figure: 1. Base plate; 2. Positioning hole; 3. Outer protective plate; 4. Block; 5. Top cover; 6. Slot; 7. Connecting piece; 8. Pin; 9. Elastic pressing piece; 10. Rolling piece; 11. Sleeve; 12. Electrode spring; 13. Resistor body; 14. Metal connection; 15. Sleeve; 16. Spring; 17. Movable rod; 18. Side groove; 19. Bottom groove; 20. Mounting plate; 21. Inner protective plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] See also Figure 1-7 The utility model provides a technical solution: a thermistor external wire installation structure, comprising:

[0037] A base and two connecting pieces 7 provided on the base and having one end electrically connected to the load;

[0038] An elastic pressing piece 9 is provided at the other end of the connecting piece 7. The elastic pressing piece 9 is kept separated from the connecting piece 7 by its own elastic force, so as to form a clamping space in the gap between the elastic pressing piece 9 and the connecting piece 7. The clamping space is used to clamp the metal connection 14 of the resistor body 13;

[0039] A pressure-applying component for applying pressure to the elastic pressing piece 9 to reduce the clamping space;

[0040] The above technical solution can facilitate the installation of the thermistor. When in use, the metal wiring 14 of the resistor body 13 is placed in the clamping space between the elastic pressing piece 9 and the connecting piece 7, and a pressure-applying component is used to apply pressure to the elastic pressing piece 9, so that the elastic pressing piece 9 is close to the connecting piece 7, so that the clamping space is reduced, and the metal wiring 14 is clamped and fixed. Since the connecting piece 7 is electrically connected to the load, when the two metal wirings 14 of the resistor body 13 are respectively connected to the two connecting pieces 7, the resistor body 13 can be connected to the circuit in series or in parallel. When the metal wiring 14 needs to be removed, the pressure of the pressure-applying component on the elastic pressing piece 9 is released, and the elastic pressing piece 9 is reset under the action of its own elastic force, thereby enlarging the clamping space and facilitating the extraction of the metal wiring 14 from the clamping space. Compared with the prior art, the metal wiring 14 is fixed by the deformation of the connecting tube. The use of the elastic pressing piece 9 is not only conducive to installation and disassembly, but also the elastic pressing piece 9 can be used multiple times without damage, thereby improving practicality.

[0041] like Figure 2 、 Figure 6 and Figure 7 As shown, in this embodiment, the mounting structure further includes: a pin 8 provided at one end of the connecting piece 7; a sleeve 11 provided at the upper end of the base for fixing the pin 8, the bottom end of the sleeve 11 being provided with an electrode spring 12 penetrating the base, the electrode spring 12 contacting and cooperating with the conductive sheet of the load to achieve power transmission; a bottom groove 19 for the electrode spring 12 to extend out of the bottom end of the base plate 1;

[0042] The above technical solution can facilitate the electrical connection between the connecting piece 7 and the load. When in use, the pin 8 at one end of the connecting piece 7 is aligned with the sleeve 11 and inserted so that the pin 8 is aligned with the sleeve 11 and connected. After the electrode spring 12 at the bottom of the sleeve 11 contacts the conductive sheet of the load, the resistor body 13 can be connected to the load.

[0043] like Figure 1 and Figure 2As shown, in this embodiment, the base includes: a bottom plate 1 and an outer protective plate 3 provided on the bottom plate 1; a top cover 5 detachably connected to the outer protective plate 3; specifically, the mounting structure further includes: at least two clamping blocks 4 provided on the upper end of the outer protective plate 3, the clamping blocks 4 engaging with the clamping grooves 6 provided on the side walls of the top cover 5; the side walls of the top cover 5 are provided with side grooves 18 for the metal wiring 14 to extend into;

[0044] The above technical solution can protect the connecting piece 7 and the sleeve 11. Since an outer protective plate 3 is provided, the sleeve 11 can be wrapped to protect it. The top cover 5 and the outer protective plate 3 can wrap most of the structure inside, thereby preventing the structural protection from being accidentally damaged outside. Since the resistor body 13 needs to sense the temperature in real time to adjust the current size, the resistor body 13 cannot be wrapped to avoid affecting its sensitivity.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, the pressure-applying component includes: a sleeve 15 having one end fixedly disposed inside the top cover 5; a movable rod 17 slidably disposed in the inner cavity of the sleeve 15; a spring 16 having one end fixedly disposed in the inner cavity of the sleeve 15, and the other end of the spring 16 abutting against the movable rod 17 to apply a thrust to the movable rod 17 so as to abut against the elastic pressing piece 9;

[0046] The above technical solution can apply pressure to the elastic pressing sheet 9, so that the elastic pressing sheet 9 cooperates with the connecting sheet 7 to clamp and fix the metal wiring 14. During use, when the metal wiring 14 of the resistor body 13 is placed between the elastic pressing sheet 9 and the connecting sheet 7, since the elastic pressing sheet 9 is not under pressure, the pressure of the elastic pressing sheet 9 on the metal wiring 14 is small and cannot prevent the metal wiring 14 from falling off. When the top cover 5 is connected to the outer protective plate 3, the movable rod 17 in the sleeve 15 contacts the elastic pressing sheet 9 under the elastic force of the spring 16, thereby increasing the clamping force of the elastic pressing sheet 9 on the metal wiring 14 and preventing the metal wiring 14 from loosening after being fixed.

[0047] like Figure 4 and Figure 6 As shown, in this embodiment, the elastic pressing piece 9 is provided with at least two rolled pieces 10 on one side thereof close to the connecting piece 7, and the rolled pieces 10 are used to wrap both sides of the metal wiring 14 to form a limiting effect;

[0048] The above technical solution can facilitate the positioning and installation of the metal wiring 14. Since two coils 10 are provided at the lower end of the elastic pressing plate 9, when the metal wiring 14 is inserted between the connecting plate 7 and the elastic pressing plate 9, the two coils 10 can form a limit on both sides of the metal wiring 14, thereby preventing the metal wiring 14 from shifting and improving the fixing stability.

[0049] like Figure 3As shown, a mounting plate 20 is provided at the bottom end of the sleeve 11, and the mounting plate 20 is fixedly connected to the base plate 1; an inner enclosure plate 21 for enclosing the sleeve 11 is provided at the upper end of the base plate 1, and a positioning hole 2 for fixing the base plate 1 to the mounting surface is opened on the outer edge surface of the base plate 1;

[0050] The above technical solution can fix the sleeve 11, and the sleeve 11 can be installed on the upper end of the base plate 1 through the mounting plate 20. Since the inner enclosure plate 21 is provided, the sleeve 11 can be wrapped by the inner enclosure plate 21 to protect it.

[0051] Working principle: When in use, first place the metal connection 14 of the resistor body 13 in the clamping space between the elastic pressing piece 9 and the connecting piece 7. Since two coils 10 are provided at the lower end of the elastic pressing piece 9, when the metal connection 14 is inserted between the connecting piece 7 and the elastic pressing piece 9, the two coils 10 can form a limit on both sides of the metal connection 14, thereby preventing the metal connection 14 from deviating. The top cover 5 is connected to the outer protective plate 3. The movable rod 17 in the sleeve 15 contacts the elastic pressing piece 9 under the elastic force of the spring 16, thereby increasing the clamping force of the elastic pressing piece 9 on the metal connection 14 and preventing the metal connection 14 from loosening after being fixed. , to achieve clamping and fixing of the metal wiring 14. Since the connecting piece 7 is electrically connected to the load, when the two metal wirings 14 of the resistor body 13 are respectively connected to the two connecting pieces 7, the resistor body 13 can be connected to the circuit in series or in parallel. When the metal wiring 14 needs to be removed, the top cover 5 is removed, and the movable rod 17 releases the pressure on the elastic pressing piece 9. The elastic pressing piece 9 is reset under the action of its own elastic force, thereby enlarging the clamping space and facilitating the extraction of the metal wiring 14 from the clamping space. Compared with the prior art, the use of the elastic pressing piece 9 is not only conducive to installation and disassembly, but the elastic pressing piece 9 can also be used multiple times.

[0052] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A thermistor external wire installation structure, comprising: A base and two connecting pieces (7) provided on the base and having one end electrically connected to a load; Characterized in that, the mounting structure further comprises: An elastic pressing piece (9) is provided at the other end of the connecting piece (7), and the elastic pressing piece (9) is kept in a separated state from the connecting piece (7) under the action of its own elastic force, so as to form a clamping space at the gap between the elastic pressing piece (9) and the connecting piece (7), and the clamping space is used to clamp the metal wiring (14) of the resistor body (13); A pressure-applying component for applying pressure to the elastic pressing sheet (9) to reduce the clamping space.

2. The external lead wire mounting structure of the thermistor according to claim 1, characterized in that: The mounting structure further comprises: a pin (8) provided at one end of the connecting piece (7); A sleeve (11) is provided at the upper end of the base for fixing the pin (8), and an electrode spring (12) is provided at the bottom end of the sleeve (11) and passes through the base. The electrode spring (12) contacts and cooperates with the conductive sheet of the load to achieve power transmission.

3. The external lead wire mounting structure of thermistor according to claim 2, characterized in that: The base comprises: A bottom plate (1) and an outer protective plate (3) provided on the bottom plate (1); A top cover (5) is detachably connected to the outer protective plate (3).

4. The external lead wire mounting structure of thermistor according to claim 3, characterized in that: The pressure applying component comprises: a sleeve (15) having one end fixedly disposed inside the top cover (5); a movable rod (17) slidably disposed in the inner cavity of the sleeve (15); One end of a spring (16) is fixed in the inner cavity of the sleeve (15), and the other end of the spring (16) abuts against the movable rod (17) to apply a thrust to the movable rod (17) so as to abut against the elastic pressing piece (9).

5. The external lead wire mounting structure of thermistor according to claim 1, characterized in that: The elastic pressing piece (9) is provided with at least two rolled pieces (10) on one side thereof close to the connecting piece (7), and the rolled pieces (10) are used to wrap the two sides of the metal wiring (14) to form a limiting effect.

6. The external lead wire mounting structure of thermistor according to claim 3, characterized in that: The mounting structure further comprises: at least two clamping blocks (4) provided at the upper end of the outer protective plate (3); the clamping blocks (4) are engaged with clamping slots (6) provided on the side wall of the top cover (5).

7. The external lead wire mounting structure of thermistor according to claim 3, characterized in that: The side wall of the top cover (5) is provided with a side groove (18) for the metal wiring (14) to extend into.

8. The external lead wire mounting structure of thermistor according to claim 3, characterized in that: A bottom groove (19) for the electrode spring (12) to extend is provided at the bottom end of the bottom plate (1).

9. The external lead wire mounting structure of thermistor according to claim 8, characterized in that: A mounting plate (20) is provided at the bottom end of the sleeve (11), and the mounting plate (20) is fixedly connected to the bottom plate (1).

10. The external lead wire mounting structure of thermistor according to claim 9, characterized in that: An inner enclosure plate (21) for enclosing the sleeve (11) is provided at the upper end of the bottom plate (1).

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