Ceramic head protection assembly of NTC (Negative Temperature Coefficient) thermosensitive resistor

Abstract

The utility model relates to the technical field of thermistors, in particular to a ceramic head protection assembly of an NTC (Negative Temperature Coefficient) thermistor. One end of each side plate is connected with the top plate, the side plates are oppositely arranged at the edge of the top plate, the top plate and the side plates are matched with each other to form an accommodating cavity for accommodating a resistor body, and the accommodating cavity is of a semi-closed structure. And the resistance value of the resistor body in the accommodating cavity is changed along with the change of the external temperature. By arranging the top plate and the side plates, the top plate and the side plates can be matched with each other to form a cover body structure, the resistor body is isolated from the outside by utilizing the cover body structure, and meanwhile, the cover body structure is semi-closed, so that the resistor body cannot be prevented from feeling the external environment temperature; and the resistor body is protected on the premise of not influencing the normal work of the resistor body, so that the resistor body is prevented from being accidentally damaged by external force.

Description

Technical Field

[0001] This utility model relates to the field of thermistor technology, and in particular to a ceramic head protection component for an NTC thermistor. Background Technology

[0002] During installation, the pins at the bottom of the NTC thermistor are connected to the circuit board. Since the top of the NTC thermistor is made of ceramic, it has poor impact resistance and is fragile. Especially during the transportation of the circuit board, if the road surface is uneven and bumps occur, the surface of the circuit board may collide with foreign objects. Under the action of external force, the ceramic head will cause the pins to bend, resulting in damage to the ceramic head and pins, thus affecting the accuracy of the NTC thermistor. Therefore, it is necessary to design a component that can protect the NTC thermistor. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a ceramic head protection component for NTC thermistors to solve the technical problem that the ceramic head of existing NTC thermistors is easily damaged when subjected to external forces.

[0004] To achieve the above objectives, this utility model provides a ceramic head protection assembly for an NTC thermistor, comprising:

[0005] roof;

[0006] A side plate connected to the top plate at one end, the side plate having at least two and arranged opposite each other at the edge of the top plate, the top plate and the side plate cooperating with each other to form a receiving chamber for placing the resistor body, the receiving chamber having a semi-closed structure so that the resistance of the resistor body in the receiving chamber can change with the external temperature.

[0007] A base plate connected to the other end of the side plate;

[0008] A positioning element is connected to a positioning hole formed on the surface of the base plate, through which the base plate can be fixed to the mounting surface.

[0009] As a preferred embodiment of this utility model, the surface of the side plate is provided with multiple through holes for connecting the internal accommodating chamber.

[0010] As a preferred embodiment of this utility model, the number of side plates is two, and the two side plates are symmetrically arranged about the top plate.

[0011] As a preferred embodiment of this utility model, the side plate is bent outward at one end near the top plate to form a folded portion.

[0012] As a preferred embodiment of this utility model, the side plate is bent inward at one end near the bottom plate to form a curved portion.

[0013] As a preferred embodiment of this utility model, side holes are provided on both sides of the side plate.

[0014] As a preferred embodiment of this utility model, one end of the side plate is connected to a cover plate, and the other end of the cover plate is bent to form an abutting part, with the abutting parts of adjacent cover plates abutting each other.

[0015] As a preferred embodiment of this utility model, the top plate, side plate, bottom plate and cover plate are formed by cutting, punching and bending a single sheet of material.

[0016] The beneficial effects of this utility model are as follows: By setting a top plate and a side plate, this utility model can form a cover structure through their cooperation. The cover structure isolates the resistor body from the outside world. At the same time, the cover structure is semi-enclosed, which will not block the resistor body from sensing the temperature of the external environment. This ensures protection for the resistor body without affecting its normal operation, thereby preventing the resistor body from being accidentally damaged by external forces. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0022] The following are marked in the diagram: 1. Resistor body; 2. Top plate; 3. Side plate; 4. Bottom plate; 5. Positioning hole; 6. Positioning element; 7. Folding part; 8. Bending part; 9. Side hole; 10. Through hole; 11. Sheath; 12. Contact part; 13. Accommodating chamber. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 4 As shown, a ceramic head protection assembly for an NTC thermistor includes: a top plate 2; a side plate 3 connected to the top plate 2 at one end, the side plate 3 having at least two side plates disposed opposite each other at the edge of the top plate 2, the top plate 2 and the side plate 3 cooperating to form a receiving chamber 13 for placing the resistor body 1, the receiving chamber 13 having a semi-enclosed structure so that the resistance of the resistor body 1 in the receiving chamber 13 can change with the external temperature; a bottom plate 4 connected to the other end of the side plate 3; and a positioning member 6 connected to a positioning hole 5 opened on the surface of the bottom plate 4, the positioning member 6 fixing the bottom plate 4 to the mounting surface.

[0026] The above technical solution can protect the thermistor from damage by external forces. In use, the top plate 2 and side plate 3 are placed on the resistor body 1, and the bottom plate 4 is in contact with the circuit board surface. The positioning member 6 is fixedly connected to the circuit board through the positioning hole 5 on the surface of the bottom plate 4, thereby completing the installation. Due to the presence of the top plate 2 and side plate 3, the resistor body 1 can be covered. When an external force is about to act on the resistor body 1, the external force will be resisted by the top plate 2 and side plate 3. At the same time, the semi-open accommodating chamber 13 formed by the top plate 2 and side plate 3 can ensure that the resistor body 1 is in contact with the external environment, so that its resistance value can change with the external temperature.

[0027] like Figure 1 and Figure 4 As shown, in this embodiment, the surface of the side plate 3 is provided with a plurality of through holes 10 for communicating with the internal accommodating chamber 13;

[0028] The above technical solution can ensure that the resistor body 1 can fully contact the external environment so that its resistance value changes synchronously with the temperature, thus achieving normal operation.

[0029] like Figure 2 and Figure 4 As shown, in this embodiment, there are two side plates 3, and the two side plates 3 are symmetrically arranged about the top plate 2;

[0030] The above technical solution can ensure that the top plate 2 can be subjected to uniform force and thus be stably supported. At the same time, the side of the side plate 3 is open, which is conducive to further contact between the resistor body 1 and the external environment.

[0031] like Figure 2 and Figure 4 As shown, in this embodiment, the side plate 3 is bent outward at one end near the top plate 2 to form a folded portion 7; the side plate 3 is bent inward at one end near the bottom plate 4 to form a bent portion 8; and side holes 9 are provided on both sides of the side plate 3.

[0032] The above technical solution can improve the structural strength of the side plate 3 by setting a bending structure on the side plate 3, so that the side plate 3 has a high anti-torsion effect.

[0033] like Figure 3 and Figure 4 As shown, in this embodiment, one end of the shield 11 is connected to the side of the side plate 3, and the other end of the shield 11 is bent to form an abutting part 12, and the abutting parts 12 of adjacent shields 11 abut against each other.

[0034] The above technical solution can ensure that the two ends of the side plate 3 are open, while the open parts are properly sealed to improve the protection of the resistor body 1.

[0035] Preferably, in this embodiment, the top plate 2, side plate 3, bottom plate 4 and cover plate 11 are formed from a single sheet of material through cutting, punching and bending;

[0036] The above technical solution facilitates the manufacture of the protective component and helps to reduce manufacturing difficulty.

[0037] Working principle: In use, the top plate 2 and side plate 3 are placed on the resistor body 1, and the bottom plate 4 is in contact with the circuit board surface. The positioning piece 6 is fixedly connected to the circuit board through the positioning hole 5 on the surface of the bottom plate 4, thereby completing the installation. Due to the presence of the top plate 2 and side plate 3, the resistor body 1 can be covered. When an external force is about to act on the resistor body 1, the external force will be resisted by the top plate 2 and side plate 3. At the same time, the semi-open accommodating chamber 13 formed by the top plate 2 and side plate 3 can ensure that the resistor body 1 is in contact with the external environment, so that its resistance value can change with the external temperature.

[0038] In summary, by setting the top plate 2 and the side plate 3, this utility model can form a cover structure through their cooperation. The cover structure isolates the resistor body 1 from the outside world. At the same time, the cover structure is semi-enclosed, so it will not block the resistor body 1 from sensing the temperature of the external environment. This ensures that the resistor body 1 is protected without affecting its normal operation, thereby avoiding accidental damage to the resistor body 1 due to external forces.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ceramic head protection assembly for an NTC thermistor, characterized by, The utility model relates to a resistance body (1) and its installation structure, which comprises: a top plate (2); a side plate (3) connected with one end of the top plate (2), the side plate (3) has at least two and is arranged at the edge of the top plate (2) in an opposite manner, and a containing cavity (13) for placing the resistance body (1) is formed by the cooperation of the top plate (2) and the side plate (3), the containing cavity (13) is a semi-closed structure, so that the resistance value of the resistance body (1) in the containing cavity (13) can change with the change of external temperature; a bottom plate (4) connected with the other end of the side plate (3); a positioning member (6) connected with a positioning hole (5) opened on the surface of the bottom plate (4), the bottom plate (4) can be fixed on the mounting surface through the positioning member (6).

2. The ceramic nose guard assembly for NTC thermistors of claim 1, wherein, A plurality of through holes (10) for communicating with the internal containing cavity (13) are opened on the surface of the side plate (3).

3. The protective assembly for the ceramic head of an NTC thermistor according to claim 2, characterized in that, The number of the side plate (3) is two, and the two side plates (3) are symmetrically arranged about the top plate (2).

4. The protective assembly for the ceramic head of an NTC thermistor according to claim 3, characterized in that, The side plate (3) is outwardly bent at one end close to the top plate (2) to form a folding part (7).

5. The protective assembly for the ceramic head of an NTC thermistor according to claim 4, characterized in that, The side plate (3) is inwardly bent at one end close to the bottom plate (4) to form a bending part (8).

6. The protective assembly for the ceramic head of an NTC thermistor according to claim 5, characterized in that, Side holes (9) are opened on both sides of the side plate (3).

7. The protective assembly for the ceramic head of an NTC thermistor according to claim 6, characterized in that, One end of the side plate (3) is connected with a shutter (11), the other end of the shutter (11) is bent to form an abutting part (12), and the abutting parts (12) of adjacent shutters (11) abut each other.

8. The protective assembly for the ceramic head of an NTC thermistor according to claim 7, characterized in that, The top plate (2), the side plate (3), the bottom plate (4) and the shutter (11) are formed by cutting, punching and bending of a plate material.

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