Structure for reducing temperature rise of high-power contact

Abstract

The invention discloses a structure for reducing the temperature rise of a high-power contact, and the structure comprises a contact female head and a contact male head, and the contact female head and the contact male head are provided with an elastic spring contact current channel and an end surface floating contact current channel which are arranged in parallel after being plugged together. The structure for reducing the temperature rise of the high-power contact is novel in structure and high in practicability. Two current channels of elastic spring contact and end surface floating contact are created on the same group of contact elements and are connected in parallel, and the resistance value is reduced by adding a parallel circuit, so that the temperature rise of the contact elements with the same specification is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and more particularly to a structure for reducing the temperature rise of a high-power contact. Background Art

[0002] At present, the resistance of the contact position in the connector field is the bottleneck for reducing the temperature rise. The smaller the contact resistance, the lower the temperature rise. Therefore, how to reduce the temperature rise of the contact has become a research direction for those skilled in the art. Summary of the invention

[0003] The object of the present invention is to provide a structure for reducing the temperature rise of a high-power contact, in order to solve one of the technical problems in the background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A structure for reducing the temperature rise of a high-power contact comprises: a female contact and a male contact. After being plugged in, the female contact and the male contact have two current channels arranged in parallel, namely, an elastic spring contact and an end surface floating contact.

[0006] In some embodiments, the contact member female head includes a tubular base and an elastic spring, a female head hole is provided in the tubular base, a plurality of elastic spring mounting grooves are opened on the side wall of the female head hole, and a bottom contact plane is provided at the bottom of the female head hole; the elastic spring is installed in the elastic spring mounting groove.

[0007] In some embodiments, the male head of the contact piece includes a cylindrical base and a spring retaining ring, wherein the spring retaining ring is arranged at the step of the cylindrical base and is limited by an insulating mounting plate, and the cylindrical base can slide relative to the insulating mounting plate, and the spring retaining ring provides continuous thrust to the cylindrical base through compression and rebound.

[0008] In some embodiments, the cylindrical base is provided with a mounting step, a cylindrical contact surface and a top contact plane; the diameter of the cylindrical contact surface is larger than the diameter of the mounting step, the length of the cylindrical contact surface is larger than the depth of the female head hole, the top contact plane and the bottom contact plane of the female head hole cooperate with each other to form a first path for the current; the diameter of the cylindrical contact surface is larger than the inner diameter of the elastic spring, the cylindrical contact surface cooperates with the elastic spring to realize the second path for the current. Compared with the prior art, the present invention has the following beneficial effects:

[0009] The structure for reducing the temperature rise of high-power contacts provided by the present invention is novel in structure and highly practical. Two current channels, elastic spring contact and end surface floating contact, are created on the same group of contacts and connected in parallel, and the resistance value is reduced by adding a parallel circuit, thereby reducing the temperature rise of contacts of the same specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the female head of the contact piece of the present invention;

[0011] Figure 2 is a schematic diagram of a female contact of the present invention;

[0012] Figure 3 It is a schematic diagram of the structure of the male head of the contact piece of the present invention;

[0013] Figure 4 It is a schematic diagram of a cylindrical substrate of the present invention;

[0014] Figure 5 It is a schematic diagram of the working state of the structure for reducing the temperature rise of high-power contacts of the present invention. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0016] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0017] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0018] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0019] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0020] The following will be combined with the figures to explain in detail a structure for reducing the temperature rise of a high-power contactor involved in an embodiment of the present application. It should be noted that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0021] Embodiment 1:

[0022] like Figure 1-5 As shown, a structure for reducing the temperature rise of high-power contacts includes: a female contact 1 and a male contact 2. After being plugged in, the female contact and the male contact have two parallel current channels, namely, elastic spring contact and end surface floating contact. The female contact includes a tubular base 1-1 and an elastic spring 1-2. A female hole is provided in the tubular base. Three elastic spring installation grooves 2-2 are provided on the side wall of the female hole. A bottom contact plane 2-1 is provided at the bottom of the female hole. The three elastic springs are installed in the elastic spring installation grooves.

[0023] The male head of the contact piece includes a cylindrical base 3-1 and a spring retainer 3-3, wherein the spring retainer is arranged at the step of the cylindrical base and is limited by the insulating mounting plate 3-2. The insulating mounting plate can slide relative to the cylindrical base and drive the cylindrical base to move by compressing the spring retainer.

[0024] In some embodiments, the cylindrical base is provided with an installation step 3-1-3, a cylindrical contact surface 3-1-2 and a top contact plane 3-1-1; the diameter of the cylindrical contact surface is larger than the diameter of the installation step, the length of the cylindrical contact surface is larger than the depth of the female head hole, and the top contact plane cooperates with the bottom contact plane of the female head hole to achieve current conduction.

[0025] When the structure of reducing the temperature rise of high-power contacts of the present application is working, the male contact is inserted into the bottom of the female hole of the female contact, the cylindrical contact surface of the male contact contacts the elastic spring, and the top contact plane of the male contact fits with the bottom contact plane of the female contact; because the length of the cylindrical contact surface is greater than the depth of the female hole, the spring retaining ring is compressed by continuing to insert it through the insulating mounting plate, and the compressed spring retaining ring provides continuous thrust to the cylindrical base of the male contact, so that the planar contact position of the top contact plane and the bottom contact plane of the female hole can maintain stable and effective fit under vibration conditions. Its working state is as follows Figure 5 .

[0026] The technical solution of the present application combines the end face contact method of the floating contact and the circumferential contact method of the pinhole to create a new contact piece structure that combines the two contact methods.

[0027] The above description is only a preferred embodiment of the present invention and is used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for reducing the temperature rise of a high-power contact, characterized in that: include: A female contact and a male contact, wherein the female contact and the male contact have two current channels connected in parallel, namely, an elastic spring contact and an end surface floating contact, after being plugged in.

2. A structure for reducing the temperature rise of a high-power contact according to claim 1, characterized in that: The contact piece female head includes a tubular base and an elastic spring. A female head hole is provided in the tubular base. A plurality of elastic spring installation grooves are opened on the side wall of the female head hole. A bottom contact plane is provided at the bottom of the female head hole. The elastic spring is installed in the elastic spring installation groove.

3. A structure for reducing the temperature rise of high-power contacts according to claim 2, characterized in that: The male head of the contact piece includes a cylindrical base and a spring retaining ring. The spring retaining ring is arranged at the step of the cylindrical base and is limited by the insulating mounting plate. The cylindrical base can slide relative to the insulating mounting plate. The spring retaining ring provides continuous thrust for the cylindrical base through compression and rebound.

4. The structure for reducing the temperature rise of high-power contacts according to claim 2, characterized in that: The cylindrical base is provided with an installation step, a cylindrical contact surface and a top contact plane; the diameter of the cylindrical contact surface is larger than the diameter of the installation step, the length of the cylindrical contact surface is larger than the depth of the female head hole, and the top contact plane and the bottom contact plane of the female head hole cooperate with each other to form a first path for current; the diameter of the cylindrical contact surface is larger than the inner diameter of the elastic spring, and the cylindrical contact surface and the elastic spring cooperate with each other to realize a second path for current.

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