A fixing structure of cylindrical thermistor

Abstract

The utility model belongs to the technical field of thermistors, and specifically discloses a fixing structure of a columnar thermistor, comprising a base, a top end of the base is surrounded by a side plate, two groups of mounting seats are relatively arranged on the side plates, a receiving groove is arranged in the mounting base to fix a support rod, hemispherical shock-absorbing rubbers are fixedly arranged on both sides of the receiving groove of the mounting base, the two hemispherical shock-absorbing rubbers are pressed against the outer peripheral wall of the support rod, a plurality of support rods are fixedly connected to the outer wall of the placement seat, the placement seat is arranged at intervals on the upper end of the base, a plurality of shock-absorbing support bodies are arranged in an array at the bottom end of the placement seat, the shock-absorbing support body is hemispherical, the outer wall of the shock-absorbing support body is fixedly connected with an annular partition, a plurality of shock-absorbing cavities are opened at the position corresponding to the shock-absorbing support body on the upper end surface of the base, the partition and the shock-absorbing support body are partially inserted into the shock-absorbing cavity, and a spring shock absorber is arranged at the lower end of the shock-absorbing support body and is located in the shock-absorbing cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of thermistors, in particular to a fixing structure of a columnar thermistor. Background Art

[0002] A thermistor is a sensor resistor whose resistance value changes with temperature. It is divided into positive temperature coefficient thermistors and negative temperature coefficient thermistors according to different temperature coefficients.

[0003] At present, the commonly used methods to enhance the fixing strength of thermistors are mainly to fix the thermistor welding end on the designed pad through the viscosity of solder paste, or to use the solder piece process through a special fixing frame fixture, or a specific adhesive to position and fix the NTC device on the designed position. However, when using the solder paste process, flux will remain on the surface of the product after reflow, and the product needs to increase the cleaning process to remove it, and the equipment cleaning and maintenance also needs to be more frequent; the solder paste process increases the production cost of the product and the difficulty of quality control, and the cleaning solvent also has a certain impact on the environment; in some application situations, soldered devices are not allowed to use flux to prevent contamination, and the solder piece process is difficult to automate, especially some devices with small contact surface with the pad, light weight, and irregular shape, which are prone to displacement after mounting, increasing the difficulty of product quality control. Therefore, it is necessary to design a resistor fixing structure that can easily remove the resistor and can be fixed very stably. Utility Model Content

[0004] The utility model aims to provide a fixing structure of a columnar thermistor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing structure of a columnar thermistor, comprising a base, a side plate is arranged around the top of the base, two groups of mounting seats are arranged on the side plates opposite to each other, a receiving groove is arranged in the mounting seat to fix a support rod, hemispherical shock-absorbing rubber is fixedly arranged on both sides of the receiving groove of the mounting seat, the two hemispherical shock-absorbing rubbers are against the outer peripheral wall of the support rod, a plurality of support rods are fixedly connected to the outer wall of the placement seat, the placement seat is arranged at intervals on the upper end of the base, a first connecting base block is arranged in the middle of the outer wall of one side of the placement seat, a hinged protective shell is connected to the other side of the placement seat, a second connecting base block is connected to one side of the protective shell, a plurality of shock-absorbing support bodies are arranged in an array at the bottom end of the placement seat, the shock-absorbing support body is hemispherical, the outer wall of the shock-absorbing support body is fixedly connected to an annular spacer, a plurality of shock-absorbing cavities are opened at the position corresponding to the shock-absorbing support body on the upper end surface of the base, the spacer and the shock-absorbing support body are partially inserted in the shock-absorbing cavity, and a spring shock absorber is arranged at the lower end of the shock-absorbing support body and is located in the shock-absorbing cavity.

[0006] Preferably, fixing ear seats are arranged on opposite sides of the base, and slot-shaped openings are arranged at the axes of the fixing ear seats.

[0007] Preferably, the placement seat and the protective shell are provided with arc-shaped placement grooves, which form a cylindrical fixed resistor body when covered.

[0008] Preferably, a plurality of groups of heat dissipation fins are arranged at intervals above the placement seat, a plurality of heat dissipation fins are arranged inside the protective shell corresponding to the placement seat, and a heat dissipation hole is arranged through the center of the top of the protective shell.

[0009] Preferably, two electrode connection blocks are symmetrically mounted on the outer side wall of the placement seat.

[0010] Preferably, the first connection base block is arranged opposite to the second connection base block, and the second connection base block is connected to the first connection base block by means of bolts and nuts.

[0011] Preferably, a shock-absorbing cotton plate is arranged around the inner wall of the side plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model facilitates the disassembly and assembly of the resistor body through the hinged placement seat and the protective shell, thereby improving the convenience of use; the placement seat and the protective shell of the utility model are provided with placement grooves to fix the resistor body, and the placement seat and the inner side of the protective shell are provided with cooling fins, which absorb heat, and the cooling fins are in contact with the external cold air through the heat dissipation holes at the upper end of the protective shell for heat exchange, thereby achieving the effect of dissipating the heat of the resistor body, ensuring the continuous working performance of the resistor body, and effectively extending the service life and use performance of the resistor body. During use, the shock-absorbing support body and the spring shock absorber at the lower end of the placement seat of the utility model realize shock absorption and buffering of the fixed structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a first cross-sectional schematic diagram of the utility model;

[0015] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0016] Figure 4 For this utility model Figure 2 The enlarged structural diagram of the middle B part;

[0017] Figure 5 It is a second cross-sectional schematic diagram of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the utility model in an open state.

[0019] In the figure: 1. base; 101. fixed ear seat; 102. side plate; 103. shock-absorbing chamber; 2. placement seat; 201. first connecting base block; 202. electrode connecting block; 3. protective shell; 301. second connecting base block; 302. heat dissipation hole; 4. heat dissipation fins; 5. shock-absorbing support body; 501. partition; 6. spring shock absorber; 7. support rod; 8. mounting seat; 801. shock-absorbing rubber; 9. shock-absorbing cotton board; 10. resistor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-6The utility model provides a technical solution: a fixing structure of a cylindrical thermistor, comprising a base 1, a side plate 102 is arranged around the top of the base 1, two sets of mounting seats 8 are arranged on the side plate 102, and a receiving groove is arranged in the mounting seat 8 to fix the support rod 7. The two sides of the receiving groove of the mounting seat 8 are fixedly provided with hemispherical shock-absorbing rubber 801, and the two hemispherical shock-absorbing rubbers 801 are against the outer peripheral wall of the support rod 7. A plurality of support rods 7 are fixedly connected to the outer wall of the placement seat 2. The placement seat 2 is arranged at intervals on the upper end of the base 1, and a middle of the outer wall of one side of the placement seat 2 is provided. A first connecting base block 201 is provided, and a protective shell 3 is hinged on the other side of the placement seat 2. A second connecting base block 301 is connected to one side of the protective shell 3. A plurality of shock-absorbing support bodies 5 are arranged in an array at the bottom end of the placement seat 2. The shock-absorbing support bodies 5 are hemispherical, and the outer wall of the shock-absorbing support body 5 is fixedly connected to an annular baffle 501. A plurality of shock-absorbing cavities 103 are provided at the position corresponding to the shock-absorbing support body 5 on the upper end face of the base 1. The baffle 501 and the shock-absorbing support body 5 are partially inserted in the shock-absorbing cavity 103. A spring shock absorber 6 is provided at the lower end of the shock-absorbing support body 5 and is located in the shock-absorbing cavity 103.

[0024] Furthermore, fixing ear seats 101 are provided on opposite sides of the base 1 , and slot-shaped openings are provided at the axes of the fixing ear seats 101 .

[0025] Furthermore, the placement seat 2 and the protective shell 3 are provided with arc-shaped placement grooves inside, and a cylindrical fixed resistor 10 is formed when covered.

[0026] Furthermore, a plurality of groups of heat dissipation fins 4 are arranged at intervals above the placement seat 2 , a plurality of heat dissipation fins 4 are arranged inside the protective shell 3 corresponding to the placement seat 2 , and a heat dissipation hole 302 is arranged through the center of the top of the protective shell 3 .

[0027] Furthermore, two electrode connection blocks 202 are symmetrically mounted on the outer side wall of the placement seat 2, so as to facilitate the connection between the resistor 10 and external devices and improve convenience.

[0028] Furthermore, the first connection base block 201 is arranged opposite to the second connection base block 301, and the second connection base block 301 is connected to the first connection base block 201 by bolts and nuts.

[0029] Furthermore, a shock-absorbing cotton plate 9 is arranged around the inner wall of the side plate 102 .

[0030] Working principle: The utility model provides a fixing structure of a columnar thermistor, including a base 1, a side plate 102 is arranged around the top of the base 1, two sets of mounting seats 8 are arranged opposite to each other on the side plate 102, a receiving groove is arranged in the mounting seat 8 to fix the support rod 7, hemispherical shock-absorbing rubber 801 is fixedly arranged on both sides of the receiving groove of the mounting seat 8, the two hemispherical shock-absorbing rubber 801 are pressed against the outer peripheral wall of the support rod 7, a plurality of support rods 7 are fixedly connected to the outer wall of the placement seat 2, and the placement seat 2 is arranged at intervals on the upper end of the base 1, A first connection base block 201 is arranged in the middle of the outer wall of one side of the placement seat 2, a protective shell 3 is hinged on the other side of the placement seat 2, and a second connection base block 301 is connected to one side of the protective shell 3, and a plurality of shock-absorbing support bodies 5 are arranged in an array at the bottom end of the placement seat 2, and the shock-absorbing support bodies 5 are hemispherical, and the outer wall of the shock-absorbing support body 5 is fixedly connected to an annular baffle 501, and a plurality of shock-absorbing cavities 103 are opened at the position corresponding to the shock-absorbing support body 5 on the upper end surface of the base 1, and the baffle 501 and the shock-absorbing support body 5 are partially inserted into the shock-absorbing cavity 103 , the lower end of the shock-absorbing support body 5 is provided with a spring shock absorber 6 located in the shock-absorbing cavity 103; when in use, the resistor body 10 is installed on the placement seat 2, the protective shell 3 is covered, and the second connection base block 301 and the first connection base block 201 are fixed with bolts and nuts. The placement seat 2 and the protective shell 3 are hingedly fixed to facilitate the disassembly and assembly of the resistor body 10, thereby improving the convenience of use. The resistor body 10 is fixed in the placement seat 2 and the protective shell 3. The inner side of the placement seat 2 and the protective shell 3 is provided with heat dissipation fins 4. When the resistor body is working, heat is generated and is dissipated through the heat dissipation fins The sheet 4 absorbs heat, and exchanges heat with the external cold air through the heat dissipation holes 302 at the upper end of the protective shell 3 through the heat dissipation fins 4, thereby achieving the effect of dissipating heat for the resistor body, and also achieving the effect of continuous heat dissipation treatment for the resistor body 10 during the working process, thereby ensuring the continuous working performance of the resistor body 10, and effectively extending the service life and performance of the resistor body 10. During use, when the resistor body 10 is subjected to external vibration impact, the shock-absorbing support body 5 and the spring shock absorber 6 at the lower end of the placement seat 2 achieve shock absorption and buffering of the fixed structure.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing structure of a cylindrical thermistor, characterized in that: The invention comprises a base (1), a side plate (102) is arranged around the top of the base (1), two groups of mounting seats (8) are arranged opposite to each other on the side plate (102), a receiving groove is arranged in the mounting seat (8) to fix the support rod (7), hemispherical shock-absorbing rubber (801) is fixedly arranged on both sides of the receiving groove of the mounting seat (8), the two hemispherical shock-absorbing rubbers (801) are pressed against the outer peripheral wall of the support rod (7), a plurality of support rods (7) are fixedly connected to the outer wall of the placement seat (2), the placement seat (2) is arranged at intervals on the upper end of the base (1), a first connecting base block (201) is arranged in the middle of the outer wall of one side of the placement seat (2), and the placement seat (2) is provided with a first connecting base block (201), and the placement seat (2) is provided with a first connecting base block (201) in the middle of the outer wall of one side of the placement seat (2). The other side of the seat (2) is hingedly connected to a protective shell (3), one side of the protective shell (3) is connected to a second connecting base block (301), a plurality of shock-absorbing support bodies (5) are arranged in an array at the bottom end of the placement seat (2), the shock-absorbing support bodies (5) are hemispherical, the outer wall of the shock-absorbing support bodies (5) is fixedly connected to an annular baffle (501), a plurality of shock-absorbing cavities (103) are opened at the position corresponding to the shock-absorbing support bodies (5) on the upper end surface of the base (1), the baffles (501) and the shock-absorbing support bodies (5) are partially inserted into the shock-absorbing cavities (103), and a spring shock absorber (6) is arranged at the lower end of the shock-absorbing support bodies (5) and is located in the shock-absorbing cavity (103).

2. A fixing structure for a columnar thermistor according to claim 1, characterized in that: Fixed ear seats (101) are arranged on opposite sides of the base (1), and slot-shaped openings are arranged at the axis of the fixed ear seats (101).

3. The fixing structure of a cylindrical thermistor according to claim 1, characterized in that: The placement seat (2) and the protective shell (3) are provided with arc-shaped placement grooves inside, and when covered, a cylindrical fixed resistor body (10) is formed.

4. The fixing structure of a cylindrical thermistor according to claim 1, characterized in that: A plurality of groups of heat dissipation fins (4) are arranged at intervals above the placement seat (2); a plurality of heat dissipation fins (4) are arranged inside the protective shell (3) corresponding to the placement seat (2); and a heat dissipation hole (302) is arranged through the center of the top of the protective shell (3).

5. The fixing structure of a columnar thermistor according to claim 1, characterized in that: Two electrode connection blocks (202) are symmetrically mounted on the outer side wall of the placement seat (2).

6. The fixing structure of a columnar thermistor according to claim 1, characterized in that: The first connection base block (201) and the second connection base block (301) are arranged opposite to each other, and the second connection base block (301) and the first connection base block (201) are connected by bolts and nuts.

7. The fixing structure of a columnar thermistor according to claim 1, characterized in that: The inner wall of the side plate (102) is surrounded by a shock-absorbing cotton plate (9).

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