Water-cooled cable for induction coil

Abstract

The utility model discloses a water-cooled cable for an induction coil, which comprises a cable conductor, a hollow water-cooled cavity channel is arranged in the cable conductor, two ends of the cable conductor are respectively provided with a metal joint, and the water-cooled cavity channel extends into the metal joints; a water nozzle is arranged on the metal connector and communicates with the interior of the water cooling cavity channel. The outer end of the metal connector is connected with a current-conducting plate, the width of the current-conducting plate is larger than the outer diameter of the metal connector, and the current-conducting plate and the water cooling cavity channel are mutually overlapped. And one side plate surface of the current-conducting plate is connected to the outer contour surface of the metal joint, so that the current-conducting plate and the water-cooling cavity channel are mutually overlapped. According to the utility model, the water-cooled cable is improved, so that when the water-cooled cable is connected with the copper bar on the induction coil, the phenomenon of poor contact is not easy to occur.

Description

Technical Field

[0001] This utility model relates to the field of water-cooled cable technology, and in particular to a water-cooled cable for induction coils. Background Technology

[0002] Water-cooled cables serve as the intermediate medium connecting the choke coil and the induction coil. They mainly consist of copper stranded wire, copper terminals, and insulating rubber tubing. Water is passed through the inlet of the copper terminals to cool the entire water-cooled cable. However, poor contact can easily occur when the copper terminals on the water-cooled cable connect to the copper busbars on the induction coil, thus requiring improvements to existing water-cooled cables. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a water-cooled cable for induction coils, and improves the water-cooled cable so that poor contact is less likely to occur when the water-cooled cable is connected to the copper busbar on the induction coil.

[0004] Technical solution: To achieve the above objectives, the present invention provides a water-cooled cable for an induction coil, comprising a cable with a hollow water-cooling cavity inside, metal connectors at both ends of the cable, the water-cooling cavity extending into the metal connectors; a water nozzle is installed on the metal connector, the water nozzle communicating with the interior of the water-cooling cavity; a conductive plate is installed at the outer end of the metal connector, the width of the conductive plate being greater than the outer diameter of the metal connector, and there is an overlapping portion between the conductive plate and the water-cooling cavity.

[0005] Furthermore, one side of the conductive plate is connected to the outer contour surface of the metal connector, so that there is an overlapping portion between the conductive plate and the water-cooling cavity.

[0006] Furthermore, a flattened connecting surface is provided on the outer contour surface of the metal connector, and the flattened connecting surface partially overlaps with the water-cooling cavity; one side of the conductive plate is correspondingly connected to the flattened connecting surface.

[0007] Furthermore, two slots are provided opposite each other on the outer contour surface of the metal connector, and a snap-fit ​​is provided on the conductive plate, which snaps into the two slots.

[0008] Furthermore, the slotting includes an outer slot section and an inner slot section connected in a stepped manner, the depth of the inner slot section is less than that of the outer slot section, and there is an overlapping part between the inner slot section and the water-cooling cavity; the latching includes a front opening section and a rear opening section connected in a stepped manner, the rear opening section is latched on the outer slot section, and the front opening section is latched on the inner slot section.

[0009] Furthermore, both the inner groove section and the front opening section are inclined, and the distance between the two inner groove sections on the metal connector is greater than the width of the front opening section of the conductive plate; when the front opening section is clamped on the inner groove section, the inner groove section applies an outward expanding squeezing force to the front opening section.

[0010] Furthermore, the conductive plate has several connection holes.

[0011] Furthermore, the metal connector is a copper head, and the conductive plate is a copper busbar.

[0012] Beneficial effects: The water-cooled cable for induction coils of this utility model has the following beneficial effects:

[0013] 1) Modify the copper heads at both ends of the water-cooled cable by adding copper busbars to the copper heads so that the water-cooled cable and the induction coil are connected through the copper busbars, thereby increasing the contact area and making it less likely to have poor contact.

[0014] 2) The copper busbars installed on the water-cooled cable overlap with the water-cooling cavity inside the copper head, which is beneficial for the heat dissipation of the copper busbars. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram showing the connection between the conductive plate and the metal connector;

[0016] Appendix Figure 2 This is a schematic diagram showing a conductive plate connected to a flattened connection surface.

[0017] Appendix Figure 3 A schematic diagram of the slotted and bayonet joint;

[0018] Appendix Figure 4 This is a schematic diagram of a conductive plate clipped onto a metal connector. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] As attached Figures 1 to 4 The water-cooled cable for the induction coil includes a cable 1, which is a copper stranded wire. An insulating rubber tube is fitted over the copper stranded wire. A hollow water-cooling cavity 2 is provided inside the cable 1. Metal connectors 3 are provided at both ends of the cable 1, and the metal connectors 3 are conductive. The water-cooling cavity 2 extends into the metal connectors 3, and a water nozzle 4 is installed on the metal connectors 3, communicating with the interior of the water-cooling cavity 2.

[0021] Specifically, the metal connector 3 is a copper head. In the field of steel smelting, when the cable 1 is used for induction heating, the cable 1 is connected to the choke and the copper busbar on the induction coil through the copper heads at both ends. Since the copper head is directly processed from a copper round bar, and the contact area between the round bar and the copper busbar is small, short circuits often occur, affecting normal production and processing.

[0022] To address the issue of poor contact between the metal connector 3 and the copper busbar, a conductive plate 5 is attached to the outer end of the metal connector 3. The width of the conductive plate 5 is greater than the outer diameter of the metal connector 3, allowing for a larger contact area between the conductive plate 5 and the copper busbar on the induction coil, thus preventing poor contact. Furthermore, there is an overlapping portion between the conductive plate 5 and the water-cooling cavity 2, enabling the water-cooling cavity 2 to also act on the conductive plate 5, which is beneficial for heat dissipation.

[0023] One implementation, for example, is attached. Figure 2 As shown, one side of the conductive plate 5 is connected to the outer contour surface of the metal connector 3, resulting in an overlap between the conductive plate 5 and the water-cooling cavity 2. A flattened connecting surface 6 is provided on the outer contour surface of the metal connector 3, partially overlapping with the water-cooling cavity 2, and one side of the conductive plate 5 is correspondingly connected to the flattened connecting surface 6. In practical applications, the flattened connecting surface 6 is first cut into the metal connector 3, and then the conductive plate 5 is soldered to the flattened connecting surface 6 using brass brazing. Due to the presence of the flattened connecting surface 6, the contact area between the conductive plate 5 and the metal connector 3 is larger, making the connection between the conductive plate 5 and the metal connector 3 more stable.

[0024] Another implementation, for example, is attached. Figure 3 and 4 As shown, two slots 7 are provided opposite each other on the outer contour surface of the metal connector 3, and a snap-fit ​​8 is provided on the conductive plate 5. The snap-fit ​​8 of the conductive plate 5 is clamped onto the two slots 7, and the conductive plate 5 is fixedly connected to the metal connector 3 by welding. Since the conductive plate 5 is clamped onto the metal connector 3, the conductive plate 5 is less likely to fall off the metal connector 3, and its stability is better.

[0025] Specifically, as shown in the attached document Figure 3 As shown, the slot 7 includes a stepped outer slot section 9 and an inner slot section 10. The depth of the inner slot section 10 is less than that of the outer slot section 9, and there is an overlap between the inner slot section 10 and the water-cooling cavity 2. The bayonet 8 includes a stepped front opening section 11 and a rear opening section 12. The width of the front opening section 11 is greater than that of the rear opening section 12. The rear opening section 12 is clamped onto the outer slot section 9, and the front opening section 11 is clamped onto the inner slot section 10. Because the outer slot section 9 is deeper, when the rear opening section 12 is clamped onto the outer slot section 9, the overlap area between the conductive plate 5 and the metal connector 3 is larger, and the connection between the two is more stable. The inner slot section 10 is shallower, but it brings the conductive plate 5 closer to the water-cooling cavity 2, and the two partially overlap, which is beneficial for the heat dissipation of the conductive plate 5.

[0026] Both the inner groove section 10 and the front opening section 11 are inclined, and the distance between the two inner groove sections 10 on the metal connector 3 is greater than the width of the front opening section 11 of the conductive plate 5. Therefore, when the front opening section 11 is clamped on the inner groove section 10, the inner groove section 10 applies an outward squeezing force to the front opening section 11, thereby making the conductive plate 5 more tightly clamped on the metal connector 3, and making the connection between the conductive plate 5 and the metal connector 3 more stable.

[0027] Specifically, the metal connector 3 is a copper head, and the conductive plate 5 is a copper busbar, with several connection holes 13 formed on the conductive plate 5. Connection holes 13 are also provided on the copper busbars of the induction coil and the choke coil, facilitating interconnection between the copper busbars through the connection holes 13.

[0028] When the water-cooled cable of this utility model is in operation, the copper busbars installed at both ends are connected to the copper busbars on the choke coil and the induction coil respectively, which makes it less likely to have poor contact and solves the problem of insufficient contact area between the copper head and the copper busbar, which often causes short circuits.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A water-cooled cable for an induction coil, characterized in that: The cable (1) has a hollow water-cooling cavity (2) inside. Metal connectors (3) are provided at both ends of the cable (1). The water-cooling cavity (2) extends into the metal connectors (3). A water nozzle (4) is installed on the metal connector (3). The water nozzle (4) is connected to the interior of the water-cooling cavity (2). A conductive plate (5) is installed on the outer end of the metal connector (3). The width of the conductive plate (5) is greater than the outer diameter of the metal connector (3), and there is an overlapping part between the conductive plate (5) and the water-cooling cavity (2).

2. The water-cooled cable for an induction coil according to claim 1, characterized in that: One side of the conductive plate (5) is connected to the outer contour surface of the metal connector (3), so that there is an overlapping part between the conductive plate (5) and the water-cooled cavity (2).

3. The water-cooled cable for an induction coil according to claim 2, characterized in that: The outer contour surface of the metal connector (3) is provided with a flattened connecting surface (6), which partially overlaps with the water-cooled cavity (2); one side of the conductive plate (5) is correspondingly connected to the flattened connecting surface (6).

4. The water-cooled cable for an induction coil according to claim 1, characterized in that: The metal connector (3) has two slots (7) opposite each other on its outer contour surface. The conductive plate (5) has a bayonet (8) which clamps the conductive plate (5) onto the two slots (7).

5. The water-cooled cable for an induction coil according to claim 4, characterized in that: The slot (7) includes an outer slot section (9) and an inner slot section (10) connected in a stepped manner. The depth of the inner slot section (10) is less than that of the outer slot section (9), and there is an overlapping part between the inner slot section (10) and the water-cooled cavity (2). The bayonet (8) includes a front opening section (11) and a rear opening section (12) connected in a stepped manner. The rear opening section (12) is clamped on the outer slot section (9), and the front opening section (11) is clamped on the inner slot section (10).

6. The water-cooled cable for an induction coil according to claim 5, characterized in that: Both the inner groove section (10) and the front opening section (11) are inclined. The distance between the two inner groove sections (10) on the metal connector (3) is greater than the width of the front opening section (11) of the conductive plate (5). When the front opening section (11) is clamped on the inner groove section (10), the inner groove section (10) applies an outward squeezing force to the front opening section (11).

7. The water-cooled cable for an induction coil according to claim 1, characterized in that: The conductive plate (5) has several connection holes (13).

8. The water-cooled cable for an induction coil according to any one of claims 1 to 7, characterized in that: The metal connector (3) is a copper head, and the conductive plate (5) is a copper busbar.

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