Medical transformer with high safety distance and high reliability

Abstract

A medical transformer with a high safety distance and high reliability comprises a framework, an upper magnetic core, a lower magnetic core, magnetic core adhesive tape, a safety sheath, a buckle, a coil and a lead, the upper magnetic core and the lower magnetic core are fixed to the upper end and the lower end of the framework through the magnetic core adhesive tape respectively, the safety sheath is connected with the middle section of the framework, the buckle is connected with the lower section of the framework, and the coil surrounds the framework. The lead is connected with the coil and fixed to the lower section of the framework. Compared with the prior art, the framework adopts a double-groove structure, the groove baffle plate design is added, and the primary and secondary safety distance is increased; the two magnetic core structures are matched in length, so that winding eddy current loss caused by air gap magnetic flux diffusion is greatly reduced; a lead clamping groove and a clamping groove bevel edge structure are added to prevent the lead from jumping out and reduce the bending damage risk of the lead; a safety creepage groove structure is added, so that the creepage distance is increased; a safety reinforcing baffle is additionally arranged on the sheath, so that the safety distance is increased; a safety confirmation groove is additionally arranged on the primary side, and the safety of products is improved.

Description

Technical Field

[0001] The utility model relates to a transformer, in particular to a medical transformer with high safety distance and high reliability. Background Art

[0002] With the continuous improvement of automation level in medical and industrial applications, the power supply must be able to provide reliable additional power during full load operation according to the dynamic situation of the load, and the short-term power must even exceed 2 to 3 times the rated power. At the same time, it must be able to work safely in various harsh special environments and always meet medical-grade isolation requirements. However, the current medical transformer is just an ordinary transformer with better performance, and there is no in-depth research and development design for its safety distance and reliability.

[0003] Therefore, there is an urgent need to design and develop a transformer structure with high reliability, ultra-high safety distance, low loss, impact current resistance and small size to achieve high-power circuit conversion.

[0004] To solve the above problems, we made a series of improvements. Utility Model Content

[0005] The purpose of the utility model is to provide a medical transformer with high safety distance and high reliability to overcome the above-mentioned shortcomings and deficiencies in the prior art.

[0006] A high safety distance and high reliability medical transformer, comprising: a frame, an upper magnetic core, a lower magnetic core, a magnetic core tape, a safety sheath, a buckle, a coil and a lead wire, wherein the upper magnetic core and the lower magnetic core are respectively fixed to the upper and lower ends of the frame by the magnetic core tape, the safety sheath is connected to the middle section of the frame, the buckle is connected to the lower section of the frame, the coil is wrapped around the frame, the lead wire is connected to the coil, and the lead wire is fixed to the lower section of the frame;

[0007] Wherein, the skeleton includes: an installation groove, a first safety groove, an upper winding groove, a lower winding groove, a second safety groove, a safety baffle, a slot bevel, a lead slot and a reinforcing rib, the installation groove is respectively connected to the top end of the upper winding groove and the bottom end of the lower winding groove, the first safety groove is arranged between the installation groove and the upper winding groove, and a second safety groove is arranged between the upper winding groove and the lower winding groove, the front end and the rear end of the connection between the installation groove and the lower winding groove are respectively provided with a safety baffle and a lead slot, the slot bevel is arranged on the lead slot, the reinforcing rib is arranged in the grooves of the first safety groove and the second safety groove, the upper winding groove and the lower winding groove are connected to the safety sheath, the lead slot is connected to the buckle, and a lead is arranged in the lead slot.

[0008] Furthermore, the length of the upper magnetic core is greater than that of the lower magnetic core.

[0009] Furthermore, the coil includes: a primary coil and a secondary coil, the primary coil is arranged in an upper winding groove, and the secondary coil is arranged in a lower winding groove.

[0010] Furthermore, a safety reinforcement baffle is provided on the outer side of the safety sheath.

[0011] Furthermore, the safety baffle is provided with: a creepage groove, a safety confirmation groove and a PIN pin, the creepage groove is provided at the top of the safety baffle, the safety confirmation groove is provided at the side end of the safety baffle, and the PIN pin is provided at the bottom end of the safety baffle.

[0012] Beneficial effects of the utility model:

[0013] Compared with the traditional technology, the utility model adopts a double-slot structure for the skeleton, adds a groove baffle design, and increases the primary-secondary safety distance; the two magnetic core structures adopt a long-short combination, which greatly reduces the winding eddy current loss caused by the diffusion of air gap magnetic flux; the lead slot and the slot bevel structure are added to prevent the lead from jumping out and reduce the risk of lead bending and damage; the safety creepage groove structure is added to increase the creepage distance; an additional safety reinforcement baffle is added to the sheath to increase the safety distance; a safety confirmation slot is added on the primary side to increase the safety of the product; a buckle structure is added to prevent the secondary lead glue from overflowing; a reinforcing rib structure is added to greatly increase the structural strength of the skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a combination state diagram of the utility model.

[0016] Reference numerals:

[0017] The frame 100 , the installation groove 110 , the first safety groove 120 , the upper winding groove 130 , the lower winding groove 140 and the second safety groove 150 .

[0018] Safety baffle 160 , creepage groove 161 , safety confirmation groove 162 , PIN foot 163 , slot bevel 170 , lead slot 180 and reinforcing rib 190 .

[0019] An upper magnetic core 200 , a lower magnetic core 300 , a magnetic core tape 400 , a safety sheath 500 and a safety reinforcement baffle 510 .

[0020] Buckle 600 , coil 700 , primary coil 710 , secondary coil 720 and lead wire 800 . DETAILED DESCRIPTION

[0021] The following is a further description of the present invention in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0022] Example 1

[0023] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 It is a combination state diagram of the utility model.

[0024] like Figure 1-2 As shown, a high safety distance and high reliability medical transformer comprises: a frame 100, an upper magnetic core 200, a lower magnetic core 300, a magnetic core tape 400, a safety sheath 500, a buckle 600, a coil 700 and a lead 800, wherein the upper magnetic core 200 and the lower magnetic core 300 are respectively fixed to the upper and lower ends of the frame 100 by the magnetic core tape 400, the safety sheath 500 is connected to the middle section of the frame 100, the buckle 600 is connected to the lower section of the frame 100, the coil 700 is wrapped around the frame 100, the lead 800 is connected to the coil 700, and the lead 800 is fixed to the lower section of the frame 100;

[0025] The frame 100 includes: a mounting groove 110, a first safety groove 120, an upper winding groove 130, a lower winding groove 140, a second safety groove 150, a safety baffle 160, a slot bevel 170, a lead slot 180 and a reinforcing rib 190. The mounting groove 110 is connected to the top of the upper winding groove 130 and the bottom of the lower winding groove 140 respectively. The first safety groove 120 is arranged between the mounting groove 110 and the upper winding groove 130, and between the upper winding groove 130 and the lower winding groove 140. A second safety groove 150 is provided, and a safety baffle 160 and a lead clamping groove 180 are respectively provided at the front and rear ends of the connection between the installation groove 110 and the lower winding groove 140. The groove bevel 170 is provided on the lead clamping groove 180, and the reinforcing rib 190 is provided in the grooves of the first safety groove 120 and the second safety groove 150. The upper winding groove 130 and the lower winding groove 140 are connected to the safety sheath 500, the lead clamping groove 180 is connected to the buckle 600, and a lead 800 is provided in the lead clamping groove 180.

[0026] The length of the upper magnetic core 200 is greater than that of the lower magnetic core 300 .

[0027] The coil 700 includes a primary coil 710 and a secondary coil 720 . The primary coil 710 is disposed in the upper winding groove 130 , and the secondary coil 720 is disposed in the lower winding groove 140 .

[0028] A safety reinforcement baffle 510 is disposed on the outer side of the safety sheath 500 .

[0029] The safety baffle 160 is provided with: a creepage groove 161, a safety confirmation groove 162 and a PIN pin 163. The creepage groove 161 is arranged at the top of the safety baffle 160, the safety confirmation groove 162 is arranged at the side end of the safety baffle 160, and the PIN pin 163 is arranged at the bottom end of the safety baffle 160.

[0030] The innovative features of the utility model are as follows: the winding structure design of the utility model adopts a double-slot structure, the primary coil 710 and the secondary coil 720 are respectively wound in the upper winding slot 130 and the lower winding slot 140, the upper winding slot 130 and the lower winding slot 140 increase the first safety slot 120 and the second safety slot 150, and increase the primary and secondary safety distance; the upper magnetic core 200 and the lower magnetic core 300 adopt a long-short match to control the air gap position between the primary and secondary windings, which greatly reduces the winding eddy current loss caused by the diffusion of the air gap flux. In order to solve the installation problem of the secondary high-current lead, the utility model abandons the traditional hanging pin winding and copper terminal connection process, and innovatively adopts the lead clamping slot 180 and the clamping slot bevel 170 structure. The lead clamping slot 180 can fix the lead to prevent the lead from jumping out and affecting the installation size. The clamping slot bevel 170 can reduce the risk of lead bending and damage. The utility model is different from the conventional skeleton that increases the skeleton width in order to lengthen the safety distance. Instead, the skeleton 100 is provided with a creepage groove 161, which is a two-sided slider structure. Through such a structural design, the safety creepage distance can be increased by an additional 7mm. The utility model improves the traditional safety sheath structure and innovatively adds two additional safety reinforcement baffles 510 to the safety sheath 500. Through this change, the safety distance can be increased by an additional 7mm. The safety confirmation groove 162 is added to visually control the safety dimensions of the product to prevent the safety distance from being insufficient due to misjudgment of employees, thereby reducing the safety of the product. In order to prevent the lead 800 of the secondary coil from overflowing, the utility model adds a buckle 600. On the one hand, the lead is firm and reliability is increased, and on the other hand, it can form an effective safety isolation with the components on the side of the PCB. While meeting the safety regulations, reinforcing ribs 190 are added to the first safety groove 120 and the second safety groove 150, which greatly increases the structural strength of the skeleton.

[0031] Compared with the traditional technology, the utility model adopts a double-slot structure for the skeleton, adds a groove baffle design, and increases the primary-secondary safety distance; the two magnetic core structures adopt a long-short combination, which greatly reduces the winding eddy current loss caused by the diffusion of air gap magnetic flux; the lead slot and the slot bevel structure are added to prevent the lead from jumping out and reduce the risk of lead bending and damage; the safety creepage groove structure is added to increase the creepage distance; an additional safety reinforcement baffle is added to the sheath to increase the safety distance; a safety confirmation slot is added on the primary side to increase the safety of the product; a buckle structure is added to prevent the secondary lead glue from overflowing; a reinforcing rib structure is added to greatly increase the structural strength of the skeleton.

[0032] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.

Claims

1. A high safety distance and high reliability medical transformer, characterized in that: include: A frame (100), an upper magnetic core (200), a lower magnetic core (300), a magnetic core tape (400), a safety sheath (500), a buckle (600), a coil (700) and a lead wire (800), wherein the upper magnetic core (200) and the lower magnetic core (300) are respectively fixed to the upper and lower ends of the frame (100) through the magnetic core tape (400), the safety sheath (500) is connected to the middle section of the frame (100), the buckle (600) is connected to the lower section of the frame (100), the coil (700) is wrapped around the frame (100), the lead wire (800) is connected to the coil (700), and the lead wire (800) is fixed to the lower section of the frame (100); The frame (100) comprises: a mounting groove (110), a first safety groove (120), an upper winding groove (130), a lower winding groove (140), a second safety groove (150), a safety baffle (160), a slot bevel (170), a lead slot (180) and a reinforcing rib (190); the mounting groove (110) is respectively connected to the top end of the upper winding groove (130) and the bottom end of the lower winding groove (140); the first safety groove (120) is arranged between the mounting groove (110) and the upper winding groove (130); a lead slot (180) and a reinforcing rib (190) are arranged between the upper winding groove (130) and the lower winding groove (140); A second safety groove (150) is provided, and a safety baffle (160) and a lead clamping groove (180) are respectively provided at the front and rear ends of the connection between the installation groove (110) and the lower winding groove (140), the clamping groove bevel (170) is provided on the lead clamping groove (180), the reinforcing rib (190) is provided in the grooves of the first safety groove (120) and the second safety groove (150), the upper winding groove (130) and the lower winding groove (140) are connected to the safety sheath (500), the lead clamping groove (180) is connected to the buckle (600), and a lead (800) is provided in the lead clamping groove (180).

2. According to claim 1, a high safety distance and high reliability medical transformer, characterized in that: The length of the upper magnetic core (200) is greater than that of the lower magnetic core (300).

3. The high safety distance and high reliability medical transformer according to claim 1 is characterized in that: The coil (700) comprises: a primary coil (710) and a secondary coil (720); the primary coil (710) is arranged in an upper winding groove (130), and the secondary coil (720) is arranged in a lower winding groove (140).

4. The high safety distance and high reliability medical transformer according to claim 1, characterized in that: A safety reinforcement baffle (510) is provided on the outer side of the safety sheath (500).

5. The high safety distance and high reliability medical transformer according to claim 1, characterized in that: The safety baffle (160) is provided with: a creepage groove (161), a safety confirmation groove (162) and a PIN pin (163); the creepage groove (161) is arranged at the top of the safety baffle (160); the safety confirmation groove (162) is arranged at the side end of the safety baffle (160); and the PIN pin (163) is arranged at the bottom end of the safety baffle (160).

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