Liquid cooling terminal capable of being cooled to contact part of male terminal and female terminal

Abstract

The utility model discloses a liquid cooling terminal capable of being cooled to a contact part of a male terminal and a female terminal, which comprises a terminal, a liquid inlet pipe, an L-shaped joint, a flow guide piece I, a flow guide piece II and a liquid outlet pipe, the flow guide piece I and the flow guide piece II are arranged in the terminal, the flow guide piece I and the liquid outlet pipe are communicated with the inside of the terminal, one end of the L-shaped joint is communicated with the flow guide piece I, and the other end of the L-shaped joint is communicated with the liquid outlet pipe. The other end of the L-shaped connector is communicated with the liquid inlet pipe, and cooling liquid sequentially flows through the liquid inlet pipe and the L-shaped connector, flows in the terminal and flows out of the liquid outlet pipe. According to the liquid cooling terminal capable of cooling to the contact part of the male terminal and the female terminal provided by the utility model, the contact part of the male terminal and the female terminal is cooled through the flowing of cooling liquid among the liquid inlet pipe, the L-shaped joint, the flow guide piece I, the interior of the terminal and the liquid outlet pipe, so that the male terminal and the female terminal can have great current-carrying capacity when a small square cable is used; the problem that the contact part of a male terminal and a female terminal of an existing new energy automobile charging gun cannot be cooled during high-power charging is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile charging, and in particular relates to a liquid cooling terminal capable of cooling the contact part of a male and a female terminal. Background Art

[0002] At present, charging piles generally charge new energy vehicles through charging guns. After the terminals of the charging gun are connected to the wires or conductors and energized, the terminals will generate heat due to resistance, which will affect the service life of the terminals and other components. The coolant in the terminal structure currently used on the market can only reach the position of the L-shaped joint, but cannot reach the contact part of the male and female terminals, so these parts cannot be cooled, which affects the temperature rise effect and current carrying capacity of the male and female terminals. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide a liquid-cooled terminal which can cool the contact part between the male and female terminals.

[0004] In order to achieve the above purpose and the above technical effect, the technical solution adopted by the utility model is:

[0005] A liquid-cooled terminal capable of cooling the contact portion of a male and female terminal comprises a terminal, wherein the terminal is connected to a cable conductor, and further comprises a liquid inlet pipe, an L-shaped joint, a flow guide member I, a flow guide member II and a liquid outlet pipe, wherein the flow guide member I and the flow guide member II are arranged in the terminal, and the flow guide member I and the liquid outlet pipe are both communicated with the interior of the terminal, one end of the L-shaped joint is communicated with the flow guide member I, and the other end of the L-shaped joint is communicated with the liquid inlet pipe, and the cooling liquid flows through the liquid inlet pipe and the L-shaped joint in sequence and flows into the upper plane of the flow guide member II at the notch on the upper part of the flow guide member I. Since the gap between the flow guide member II and the interior of the terminal is small and the resistance is large, the liquid can only flow along the upper plane of the flow guide member II to the head of the flow guide member II, and then flow to the lower plane of the flow guide member II through the gap between the vertical protrusion of the head of the flow guide member II and the terminal, and then flow out from the liquid outlet pipe at the tail of the terminal.

[0006] Furthermore, one end of the L-shaped joint is connected to the terminal through a thread and communicates with the guide member I, and the other end of the L-shaped joint is communicated with the liquid inlet pipe through the fastener I.

[0007] Furthermore, a notch is formed at the top of the flow guide member I, and the notch communicates with the interior of the terminal.

[0008] Furthermore, there is a certain gap between the guide member II and the terminal head.

[0009] Furthermore, the guide member II is L-shaped, and is provided with a through hole for the guide member I to pass through.

[0010] Furthermore, the guide member II comprises a square plate with a through hole formed thereon, a vertical protrusion being provided at one end of the square plate and a transverse protrusion being provided at the other end, and a certain gap being present between the transverse protrusion and the terminal head.

[0011] Furthermore, the through hole is arranged on a side close to the vertical protrusion.

[0012] Furthermore, the guide member I is a cylindrical structure, and the through hole is a circular hole.

[0013] Furthermore, the liquid outlet pipe is connected to the terminal tail through the fastener II, and the terminal tail is connected to the cable conductor.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a liquid cooling terminal capable of cooling the contact part of male and female terminals, comprising a terminal, a liquid inlet pipe, an L-shaped joint, a flow guide member I, a flow guide member II and a liquid outlet pipe, wherein the terminal is connected with a cable conductor, the flow guide member I and the flow guide member II are arranged in the terminal, the flow guide member I and the liquid outlet pipe are both communicated with the inside of the terminal, one end of the L-shaped joint is communicated with the flow guide member I, and the other end of the L-shaped joint is communicated with the liquid inlet pipe, the cooling liquid flows through the liquid inlet pipe and the L-shaped joint in sequence and flows into the upper plane of the flow guide member II at the notch on the upper part of the flow guide member I, and because the gap between the flow guide member II and the inside of the terminal is small and the resistance is large, the liquid can only flow along the upper plane of the flow guide member II to the head of the flow guide member II, and then flow to the lower plane of the flow guide member II through the gap between the vertical protrusion of the head of the flow guide member II and the terminal, and then flow out from the liquid outlet pipe at the tail of the terminal. The utility model provides a liquid-cooled terminal that can cool the contact part of the male and female terminals. The contact part of the male and female terminals is cooled by the flow of coolant among the liquid inlet pipe, the L-shaped joint, the guide piece I, the inside of the terminal, and the liquid outlet pipe. This makes the male and female terminals have a large current-carrying capacity when using small-square cables, solving the problem that the contact part between the male terminal and the female terminal of the existing new energy vehicle charging gun cannot be cooled when charging at high power. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model when the cable conductor, fastener I and fastener II are not installed;

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the flow guide member I of the utility model;

[0020] Figure 5It is a schematic diagram of the three-dimensional structure of the flow guide member II of the utility model;

[0021] Figure 6 It is a schematic structural diagram of the female terminal of the utility model. DETAILED DESCRIPTION

[0022] The present invention is described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0024] like Figure 1-6 As shown, a liquid-cooled terminal capable of cooling the contact portion of a male and female terminal comprises a terminal 1 (a male terminal), a liquid inlet pipe 2, an L-shaped joint 3, a flow guide member Ⅰ4, a flow guide member Ⅱ5, a liquid outlet pipe 6, a fastener Ⅰ7 and a fastener Ⅱ8, wherein the flow guide member Ⅰ4 and the flow guide member Ⅱ5 are arranged in the terminal 1, one end of the L-shaped joint 3 is connected to the terminal 1 through a thread and communicates with the flow guide member Ⅰ4, the other end of the L-shaped joint 3 is communicated with the liquid inlet pipe 2 through the fastener Ⅰ7, the L-shaped joint 3 is threadedly connected to the fastener Ⅰ7, the flow guide member Ⅰ4 is a cylindrical structure, and the top of the flow guide member Ⅰ4 is open There is a notch 41, and the guide piece I4 is connected with the inside of the terminal 1 through the notch 41, so that the coolant in the guide piece I4 can not only circulate inside it, but also flow into the terminal 1 through the notch 41. The tail of the terminal 1 is connected with the liquid outlet pipe 6 through the fastener II8, and the tail of the terminal 1 is threadedly connected to the fastener II8. The tail of the terminal 1 is connected to the cable conductor 9. The head of the terminal 1 is threadedly provided with an anti-tentacle contact cap 10. The liquid inlet pipe 2, the L-shaped joint 3, and the guide piece I4 are sequentially connected along the flow direction of the coolant, and there is a certain gap between the guide piece II5 and the head of the terminal 1.

[0025] In the utility model, the outer wall of the terminal 1 is the contact part between the male terminal and the female terminal, and the guide member II5 is L-shaped. The guide member II5 includes a square plate 51. A vertical protrusion 52 is provided at one end of the square plate 51, and a transverse protrusion 53 is provided at the other end. There is a certain gap between the transverse protrusion 53 and the head of the terminal 1 to facilitate the flow of coolant. A circular through hole 54 is provided on the square plate 51, close to the side of the vertical protrusion 52, and the guide member I4 is fixed in the terminal 1 after passing through the through hole 54.

[0026] When in use, the pressure is provided by the external device, and the coolant flows through the liquid inlet pipe 2 and the L-shaped joint 3 in sequence and flows into the upper plane of the guide member II5 at the notch 41 on the upper part of the guide member I4. Since the gap between the guide member II5 and the terminal 1 is small and the resistance is large, the liquid can only flow along the upper plane of the guide member II5. Since there is a gap between the head of the guide member II5 and the terminal 1, the liquid flows from the gap between the vertical protrusion 52 on the head of the guide member II5 and the terminal 1 to the lower plane of the guide member II5 and then flows out from the liquid outlet pipe 6 at the tail of the terminal 1, flows from the liquid outlet pipe 6 to the external device, and flows to the inlet of the liquid inlet pipe 2 after being cooled by the external device, forming a cycle. By installing the guide member I4 and the guide member II5, the coolant is prompted to flow inside the terminal 1 cycle after passing through the L-shaped joint 3, so as to achieve the effect of cooling the male and female terminals and the contact parts of the male and female terminals at the same time.

[0027] Parts or structures not specifically described in the present invention may adopt existing technologies or existing products and will not be described in detail here.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A liquid-cooled terminal capable of cooling the contact portion between male and female terminals, comprising a terminal connected to a cable conductor, characterized in that: It also includes a liquid inlet pipe, an L-shaped joint, a guide member I, a guide member II and a liquid outlet pipe, wherein the guide member I and the guide member II are arranged in the terminal, the guide member I and the liquid outlet pipe are both connected to the inside of the terminal, one end of the L-shaped joint is connected to the guide member I, and the other end of the L-shaped joint is connected to the liquid inlet pipe, and the coolant flows through the liquid inlet pipe and the L-shaped joint in sequence and flows inside the terminal and flows out from the liquid outlet pipe.

2. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 1, characterized in that: One end of the L-shaped joint is connected to the terminal through a thread and communicates with the flow guide member I, and the other end of the L-shaped joint is communicated with the liquid inlet pipe through a fastener I.

3. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 1, characterized in that: A notch is formed on the top of the flow guide member I, and the notch communicates with the interior of the terminal.

4. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 1, characterized in that: There is a certain gap between the guide member II and the terminal head.

5. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 1 or 4, characterized in that: The guide member II is L-shaped and is provided with a through hole for the guide member I to pass through.

6. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 5, characterized in that: The flow guide II comprises a square plate with a through hole formed thereon. A vertical protrusion is disposed at one end of the square plate and a transverse protrusion is disposed at the other end. There is a certain gap between the transverse protrusion and the terminal head.

7. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 6, characterized in that: The through hole is arranged on a side close to the vertical protrusion.

8. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 5, characterized in that: The flow guide member I is in a cylindrical structure, and the through hole is a circular hole.

9. A liquid-cooled terminal capable of cooling the contact portion between the male and female terminals according to claim 1, characterized in that: The liquid outlet pipe is communicated with the terminal tail through a fastener II, and the terminal tail is connected to the cable conductor.

Images