PQ copper sheet with protective film

Abstract

The utility model provides a PQ copper sheet with a protective film, which comprises an insulating film and a copper sheet body, the insulating film wraps the outer wall of the copper sheet body, pins are symmetrically and detachably mounted on the lower end face of the copper sheet body, fixing teeth are arranged on the lower end face of the copper sheet body, and the protective film is arranged on the lower end face of the copper sheet body. According to the utility model, through the arrangement of the fixing grooves, the fixing teeth and the fixing pieces, the pins can be conveniently dismounted or mounted, the orientation of the pins can be conveniently adjusted, the damaged pins can be conveniently replaced, the practicability of the copper sheet body is improved, the structure is simple, the cost is low, and the cost is low. And the service life of the copper sheet body is prolonged.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of coil windings, in particular to a PQ copper sheet with a protective film. Background Art

[0002] In the development of high-power and high-current products, higher and higher power density is required, that is, the power must be continuously improved under the same volume. In low-voltage and high-current products, in order to meet product performance, copper sheets are used as windings on the primary and secondary sides. However, when installing the magnetic core on the copper sheet, the copper sheet is thin and the pins of the copper sheet are easily bent and damaged, which affects the subsequent installation of the copper sheet.

[0003] For example, the patent with application number 201810044982.2 discloses a copper sheet, including a copper sheet body, the copper sheet body is an annular opening structure, a first pin and a second pin are arranged at the opening of the copper sheet body, a positioning hole is opened on the second pin, a guide sleeve is arranged on the second pin, and the guide sleeve is located above the positioning hole. The beneficial effects of the present invention are: insulating the copper sheet can improve the safety factor of the finished product, the increased positioning hole is convenient for positioning, easy installation, improved work efficiency, reduced labor costs, the use of L-shaped pins, improved stability, and the increased guide sleeves improve safety.

[0004] The inventor believes that the prior art cannot disassemble and replace the pins, nor can it adjust the pin direction as needed. When installing the magnetic core on the copper sheet, the pins of the copper sheet are easily bent and damaged. If the pins are not replaced, the subsequent installation of the copper sheet is easily affected. Adjusting the pin direction facilitates the installation requirements and improves practicality. Utility Model Content

[0005] The utility model mainly provides a PQ copper sheet with a protective film, which is used to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A PQ copper sheet with a protective film comprises an insulating film and a copper sheet body, wherein the insulating film is coated on the outer wall of the copper sheet body, the lower end surface of the copper sheet body is symmetrically and detachably mounted with pins, the lower end surface of the copper sheet body is provided with fixing teeth, the upper end surface of the pin is provided with a fixing groove that fits with the fixing teeth, and the outer wall of the fixing tooth is provided with a fixing piece that fixes the pin.

[0008] Preferably, the fixing member includes a fixing pin and a first spring, the front end surface of the fixing tooth is provided with an inwardly recessed groove, the fixing pin is slidably connected in the groove, the first spring is installed in the groove, both ends of the first spring are respectively fixedly connected to the groove box and the fixing pin, the front and rear ends of the pin are symmetrically provided with fixing holes, the fixing holes are connected to the fixing groove, and the fixing hole and the fixing pin cooperate with each other.

[0009] Preferably, the groove is symmetrically provided with a slide groove, and the outer wall of the fixing pin is symmetrically provided with a slider, and the slider extends into the slide groove and is slidably connected with the slide groove.

[0010] Preferably, the front end surface of the fixing pin is provided with a curved surface.

[0011] Preferably, the fixing member includes an L-shaped block and a second spring, the front end surface of the fixing tooth is provided with a guide groove, the L-shaped block is slidably connected in the guide groove, the second spring is installed on the bottom wall of the guide groove, and the other end of the second spring is fixedly connected to the L-shaped block, and openings are symmetrically provided at the front and rear ends of the pin, the openings are connected to the fixing groove, and the openings cooperate with the L-shaped block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting the fixing groove, fixing teeth and fixing parts, it is convenient to remove or install the pins, adjust the direction of the pins and replace the damaged pins, improve the practicality of the copper sheet body, and increase the service life of the copper sheet body;

[0014] 2. By providing a fixing pin, a first spring and a fixing hole, the first spring can push the fixing pin into the fixing hole to fix the pin;

[0015] 3. By providing an L-shaped card block, a second spring and a card block, the L-shaped card block can be pushed into the opening by the second spring, thereby fixing the pin.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the pins of Embodiment 1 of the utility model;

[0019] Figure 3 for Figure 2 A magnified view of area a;

[0020] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0021] Figure 5 This is a cross-sectional view of the pins of Embodiment 2 of the present utility model;

[0022] Figure 6 for Figure 5 Enlarged view of area b.

[0023] In the figure: 1, insulating film; 2, copper sheet body; 21, fixing tooth; 211, groove; 212, slide groove; 213, guide groove; 3, pin; 31, fixing groove; 32, fixing hole; 33, opening; 4, fixing piece; 41, fixing pin; 411, arc surface; 412, slider; 42, first spring; 43, L-shaped block; 44, second spring. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Example 1

[0027] Please pay attention to Figures 1 to 3 A PQ copper sheet with a protective film comprises an insulating film 1 and a copper sheet body 2, wherein the insulating film 1 is coated on the outer wall of the copper sheet body 2, and a pin 3 is symmetrically and detachably mounted on the lower end surface of the copper sheet body 2, and a fixing tooth 21 is arranged on the lower end surface of the copper sheet body 2, and a fixing groove 31 which fits with the fixing tooth 21 is arranged on the upper end surface of the pin 3, and a fixing part 4 for fixing the pin 3 is arranged on the outer wall of the fixing tooth 21.

[0028] Specifically, by providing the fixing groove 31, the fixing teeth 21 and the fixing member 4, the pin 3 can be easily disassembled or installed, the orientation of the pin 3 can be easily adjusted and the damaged pin 3 can be replaced, thereby improving the practicality of the copper sheet body 2 and increasing the service life of the copper sheet body 2.

[0029] Please pay attention to Figures 1 to 3The fixing member 4 includes a fixing pin 41 and a first spring 42. The front end surface of the fixing tooth 21 is provided with an inwardly recessed groove 211. The fixing pin 41 is slidably connected in the groove 211. The first spring 42 is installed in the groove 211. The two ends of the first spring 42 are respectively fixedly connected to the groove 211 and the fixing pin 41. The front and rear ends of the pin 3 are symmetrically provided with fixing holes 32. The fixing holes 32 are connected to the fixing groove 31. The fixing holes 32 cooperate with the fixing pin 41. By setting the fixing pin 41 and the first spring The spring 42 and the fixing hole 32 can fix the pin 3 after the first spring 42 pushes the fixing pin 41 into the fixing hole 32. The groove 211 is symmetrically provided with a slide groove 212. The outer wall of the fixing pin 41 is symmetrically provided with a slider 412. The slider 412 extends into the slide groove 212 and is slidably connected to the slide groove 212. By setting the slider 412 and the slide groove 212, the fixing pin 41 is conveniently slidably connected in the groove 211. The front end surface of the fixing pin 41 is provided with an arc surface 411. By setting the arc surface 411, the fixing pin 41 can be conveniently inserted into the fixing hole 32.

[0030] The specific operation mode of the embodiment 1 of the utility model is as follows:

[0031] When installing, the direction of pin 3 can be adjusted as needed. Furthermore, the fixing pin 41 is pressed into the groove 211 so that the fixing pin 41 compresses the first spring 42, and then the pin 3 is inserted so that the fixing tooth 21 is stuck in the fixing groove 31. When the fixing tooth 21 can press the fixing pin 41, the fixing pin 41 is released. At this time, since the fixing pin 41 is pressed by the inner wall of the fixing groove 31, it will not pop out. When the pin 3 continues to be installed, the fixing pin 41 contacts the fixing hole 32, and the first spring 42 rebounds to push the fixing pin 41 into the fixing hole 32 to fix the pin 3. When disassembling, only a needle or a small object is needed to push the fixing pin 41 into the groove 211, and then the pin 3 is pulled out. When the inner wall of the fixing groove 31 presses the fixing pin 41, the needle is pulled out, and then the pin 3 is taken out. When the pin 3 is detached, the first spring 42 resets the fixing pin 41.

[0032] Example 2

[0033] Please pay attention to Figures 4 to 6 , a PQ copper sheet with a protective film, the fixing member 4 includes an L-shaped block 43 and a second spring 44, the front end surface of the fixing tooth 21 is provided with a guide groove 213, the L-shaped block 43 is slidably connected in the guide groove 213, the second spring 44 is installed on the bottom wall of the guide groove 213, and the other end of the second spring 44 is fixedly connected to the L-shaped block 43, the front and rear ends of the pin 3 are symmetrically provided with openings 33, the opening 33 is connected to the fixing groove 31, and the opening 33 cooperates with the L-shaped block 43.

[0034] Specifically, by providing the L-shaped clamping block 43 , the second spring 44 and the clamping block, the second spring 44 can push the L-shaped clamping block 43 to clamp into the opening 33 , thereby fixing the pin 3 .

[0035] The specific operation method of the second embodiment of the present utility model is as follows:

[0036] During installation, the L-shaped block 43 is pushed so that it can pass through the opening 33 of the pin 3. At this time, the L-shaped block 43 compresses the second spring 44, and then the pin 3 is installed to make the L-shaped block 43 pass through the opening 33 of the pin 3. Then the L-shaped block 43 is released, and the second spring 44 pushes the L-shaped block 43 to return to its original position, so that the L-shaped block 43 blocks the opening 33 to fix the pin 3. During disassembly, it is only necessary to push the L-shaped block 43 again to move the L-shaped block 43 to the opening 33 position, take out the pin 3 forward, and make the L-shaped block 43 pass through the opening 33 again to take out the pin 3.

[0037] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A PQ copper sheet with a protective film, comprising an insulating film (1) and a copper sheet body (2), characterized in that: The insulating film (1) is coated on the outer wall of the copper sheet body (2); a pin (3) is symmetrically and detachably mounted on the lower end surface of the copper sheet body (2); a fixing tooth (21) is provided on the lower end surface of the copper sheet body (2); a fixing groove (31) is provided on the upper end surface of the pin (3) that fits with the fixing tooth (21); and a fixing part (4) for fixing the pin (3) is provided on the outer wall of the fixing tooth (21).

2. The PQ copper sheet with a protective film according to claim 1, characterized in that: The fixing member (4) comprises a fixing pin (41) and a first spring (42); the front end surface of the fixing tooth (21) is provided with an inwardly recessed groove (211); the fixing pin (41) is slidably connected in the groove (211); the first spring (42) is installed in the groove (211); the two ends of the first spring (42) are respectively fixedly connected to the groove (211) and the fixing pin (41); the front and rear ends of the pin (3) are symmetrically provided with fixing holes (32); the fixing holes (32) are connected to the fixing groove (31); and the fixing holes (32) and the fixing pin (41) cooperate with each other.

3. The PQ copper sheet with a protective film according to claim 2, characterized in that: A sliding groove (212) is symmetrically arranged in the groove (211), and a sliding block (412) is symmetrically arranged on the outer wall of the fixing pin (41), and the sliding block (412) extends into the sliding groove (212) and is slidably connected with the sliding groove (212).

4. The PQ copper sheet with a protective film according to claim 2, characterized in that: The front end surface of the fixing pin (41) is provided with a curved surface (411).

5. The PQ copper sheet with a protective film according to claim 1, characterized in that: The fixing member (4) comprises an L-shaped block (43) and a second spring (44); a guide groove (213) is provided on the front end surface of the fixing tooth (21); the L-shaped block (43) is slidably connected in the guide groove (213); the second spring (44) is mounted on the bottom wall of the guide groove (213); and the other end of the second spring (44) is fixedly connected to the L-shaped block (43); openings (33) are symmetrically provided at the front and rear ends of the pin (3); the openings (33) are connected to the fixing groove (31); and the openings (33) and the L-shaped block (43) cooperate with each other.

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