A ceramic PTC fixing fixture

Abstract

This utility model provides a ceramic PTC fixing fixture, including two insulating bases, on which PTC fixing components are provided. Each PTC fixing component includes a limiting boss and an insulating fixing plate. The limiting boss is fixed to the insulating base, and the insulating fixing plate is mounted on the limiting boss. This utility model has the following advantages: while considering heat dissipation and insulation, it is compatible with PTCs of various lengths. Furthermore, this fixture provides precise positioning, allowing for performance testing of various PTCs without changing the fixture. It is easy to install, saving time and effort. It also avoids short circuits caused by contact with the metal casing, ensuring that one fixture can fix multiple PTCs, greatly improving testing efficiency.

Description

Technical Field

[0001] This utility model is a ceramic PTC fixing fixture, belonging to the field of electronic component assembly technology. Background Technology

[0002] Currently, this fixture is mainly used for fixing ceramic PTCs on the operating table. One set of fixtures can be compatible with PTCs of various lengths and includes a heat dissipation and insulation design.

[0003] The existing tooling is not compatible with multiple PTCs. When fixing PTCs of different lengths, the corresponding tooling needs to be changed, which greatly reduces the testing efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ceramic PTC fixing fixture.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A ceramic PTC fixing fixture includes two insulating bases, and a PTC fixing assembly is provided on the two insulating bases. The PTC fixing assembly includes a limiting boss and an insulating fixing plate. The limiting boss is fixed on the insulating base, and the insulating fixing plate is installed on the limiting boss.

[0007] Furthermore, the limiting boss includes two ear plates, and a fixing plate is integrally connected between the two ear plates, forming a PTC placement groove between the two ear plates and the fixing plate.

[0008] Furthermore, heat dissipation holes are provided on both ear plates and the fixing plate.

[0009] Furthermore, a screw hole is provided at the end of the ear plate, and a second set of screw holes is provided on the insulating base. The two sets of screw holes are connected and fixed by a screw.

[0010] Furthermore, the top outer surface of the ear plate is provided with two screw holes, which are located inside the two screw holes one. The insulating fixing plate is provided with a second set of screw holes two. The two sets of screw holes two are connected and fixed by screws two.

[0011] Furthermore, a reinforcing plate is provided at the connection between the ear plates on both sides and the fixing plate, and the end of the reinforcing plate abuts against the inner wall of the insulating base.

[0012] Furthermore, it also includes an air vent baffle, which is installed between the two insulating bases.

[0013] The beneficial effects of this utility model are:

[0014] This invention, while taking into account heat dissipation and insulation, is compatible with PTCs of various lengths. At the same time, this fixture can accurately position and perform various PTC performance tests without changing the fixture. It is easy to install, saving time and effort, and avoids short circuits caused by contact with the metal casing. It ensures that one fixture can fix multiple PTCs, greatly improving testing efficiency.

[0015] The design of the limiting boss and the insulating fixing plate can press the PTC tightly, match the PTC, and prevent its lateral displacement. At the same time, the limiting boss has three heat dissipation holes, which is beneficial for the heat dissipation of the PTC.

[0016] The design of this device, featuring four limiting bosses and two insulating fixing plates, allows it to accommodate PTCs of various lengths. The four limiting bosses are fixed to the top of the insulating base with screws, eliminating the need for disassembly during use. The two inner limiting bosses, in conjunction with the insulating fixing plates, can secure short PTCs, while the two outer limiting bosses, also in conjunction with the insulating fixing plates, can secure long PTCs. During use, simply moving the two insulating fixing plates is sufficient to secure both short and long PTCs.

[0017] This device can be used in combination with an operating test bench. It can be installed on the operating bench and is mainly used to fix and install PTC, remove the insulating fixing plate, place the PTC on the limiting boss, and select the insulating fixing plate to install on the corresponding limiting boss according to the length of the PTC. The insulating fixing plate and the limiting boss are used together to fix the PTC and facilitate the testing of the PTC. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the short PTC fixing structure in a ceramic PTC fixing fixture of this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the fixing structure for a long PTC in a ceramic PTC fixing fixture of this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the limiting boss structure of a ceramic PTC fixing fixture according to the present invention;

[0022] Figure 4 This is a top view of the structure of a ceramic PTC fixing fixture in the fixed state of a short PTC according to the present invention. Figure 1 ;

[0023] Figure 5 This is a top view of the structure of a ceramic PTC fixing fixture in the fixed state of a short PTC according to the present invention. Figure 2 .

[0024] In the diagram, 1. Insulating base; 2. Limiting boss; 3. Insulating fixing plate; 4. Air vent baffle; 5. Ear plate; 6. Reinforcing plate; 7. Screw hole one; 8. Screw hole two; 9. Heat dissipation hole; 10. PTC placement slot; 11. Screw one; 12. Screw two; 13. Fixing plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a ceramic PTC fixing fixture technical solution, including two insulating bases 1, and PTC fixing components are provided on the two insulating bases 1. The PTC fixing components include limiting bosses 2 and insulating fixing plates 3. The limiting bosses 2 are fixed on the insulating bases 1, and the insulating fixing plates 3 are installed on the limiting bosses 2. Through the design of the limiting bosses 2 and the insulating fixing plates 3, the PTC can be pressed and matched to prevent its lateral displacement.

[0027] See Figure 1-5 The limiting boss 2 includes two ear plates 5, and a fixing plate 13 is integrally connected between the two ear plates 5. A PTC placement groove 10 is formed between the two ear plates 5 and the fixing plate 13. Heat dissipation holes 9 are provided on the two ear plates 5 and the fixing plate 13. Through the design of the limiting boss 2 and the insulating fixing plate 3, the PTC can be pressed and matched to prevent its lateral displacement. At the same time, the limiting boss 2 has three heat dissipation holes 9, which is beneficial for heat dissipation of the PTC.

[0028] See Figure 1-5The ear plate 5 has a screw hole 7 at its end, and the insulating base 1 has a second set of screw holes 7. The two sets of screw holes 7 are connected and fixed by screws 11. The screws 11 can be used to connect the limiting boss 2 to the insulating base 1.

[0029] See Figure 1-5 The top outer surface of the ear plate 5 is provided with two screw holes 8 located inside the two screw holes 7. The insulating fixing plate 3 is provided with a second set of screw holes 8. The two sets of screw holes 8 are connected and fixed by screws 12. Through the design of screws 12, the limiting boss 2 can be connected to the insulating fixing plate 3.

[0030] See Figure 1-5 A reinforcing plate 6 is provided at the connection between the ear plate 5 on both sides and the fixing plate 13, and the end of the reinforcing plate 6 abuts against the inner wall of the insulating base 1.

[0031] See Figure 1-5 It also includes an air vent baffle 4, which is installed between the two insulating bases 1. The air vent baffle 4 is a single piece of stainless steel plate and is used in conjunction with the operating table and the external fan. Specifically, when the fixture is placed on the operating table for testing, the table surface is left with an air vent, and the fan is placed underneath. Then, the air vent baffle 4 is used to block the space beyond the length of the PTC, so that the airflow output from the air vent can only pass under the PTC, preventing the wind speed at the unshielded ends of the PTC from being too high, causing uneven PTC temperature and affecting the test results.

[0032] The circuits, electronic components, controllers, and modules involved are all existing technologies that can be fully implemented by those skilled in the art, so there is no need to elaborate. The content protected by this application does not involve any improvement to the software and methods.

[0033] In use, this device can be combined with an operating test bench and installed on it. Its main purpose is to fix and install PTCs. The device's design, featuring four limiting bosses 2 and two insulating fixing plates 3, allows it to accommodate PTCs of various lengths. The four limiting bosses 2 are fixed to the top of the insulating base 1 by screws 11. During use, there is no need to disassemble the four limiting bosses 2. Instead, the insulating fixing plates 3 are removed using screws 12, separating them from the limiting bosses 2. Then, the PTC is placed onto the limiting bosses 2. The PTC is placed in the slot 10. The insulating fixing plate 3 is installed on the corresponding limiting boss 2 according to the length of the PTC. When fixing a short PTC, the two limiting bosses 2 located inside can be used in combination with the insulating fixing plate 3 to fix the short PTC. When fixing a long PTC, the two limiting bosses 2 located outside can be used in combination with the insulating fixing plate 3 to fix it. In use, only the two insulating fixing plates 3 need to be moved to fix the short and long PTCs, which is convenient for PTC testing and other work. The operation is relatively convenient.

[0034] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ceramic PTC fixture tool, characterized by, It includes two insulating bases (1), and PTC fixing components are provided on the two insulating bases (1). The PTC fixing components include a limiting boss (2) and an insulating fixing plate (3). The limiting boss (2) is fixed on the insulating base (1), and the insulating fixing plate (3) is installed on the limiting boss (2).

2. The ceramic PTC fixing fixture according to claim 1, characterized in that, The limiting boss (2) includes two ear plates (5), and a fixing plate (13) is integrally connected between the two ear plates (5). A PTC placement groove (10) is formed between the two ear plates (5) and the fixing plate (13).

3. The ceramic PTC fixing fixture according to claim 2, characterized in that, Heat dissipation holes (9) are provided on both ear plates (5) and the fixing plate (13).

4. The ceramic PTC fixing fixture according to claim 3, characterized in that, The ear plate (5) has a screw hole (7) at its end, and the insulating base (1) has a second set of screw holes (7). The two sets of screw holes (7) are connected and fixed by screws (11).

5. A ceramic PTC fixing fixture according to claim 4, characterized in that, The top outer surface of the ear plate (5) and inside the two screw holes (7) are provided with two screw holes (8). The insulating fixing plate (3) is provided with a second set of screw holes (8). The two sets of screw holes (8) are connected and fixed by screws (12).

6. A ceramic PTC fixing fixture according to claim 5, characterized in that, A reinforcing plate (6) is provided at the connection between the ear plate (5) on both sides and the fixing plate (13), and the end of the reinforcing plate (6) abuts against the inner wall of the insulating base (1).

7. A ceramic PTC fixing fixture according to claim 6, characterized in that, It also includes an air vent baffle (4), which is installed between the two insulating bases (1).

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