Waterproof connector for low-voltage pin riveting, thread throwing and glue pouring

Abstract

The utility model discloses a waterproof connector for low-voltage pin riveting, thread throwing and glue pouring. The pin terminal and the wire harness are pressed into a molded integrated mold in a riveting, throwing and injection molding mode, the pin terminal and the wire harness are good in drawing force performance, the pin terminal is not prone to falling off, wiring of the wire harness is convenient, fixation is firm, and no extra butt joint piece is needed for insertion and butt joint; the mold is small in size, does not occupy extra space and is suitable for mass production, and the production and manufacturing cost is reduced; besides, two glue-pouring waterproof grooves are designed at the press-fitting position of the pin terminal and the wire harness, so that the waterproof effect of the connector is good, and the pin terminal is protected from being damaged by the sheath sleeved at the press-fitting position.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy compressor controllers, in particular to a waterproof connector with low-voltage pin mortise, wire throwing and glue filling. Background Art

[0002] In the air-conditioning system of new energy vehicles, there are two subsystems, heating and cooling. The heating system and the cooling system are mostly composed of PTC heaters and compressors. This requires that the compressor controllers of the heating system and the cooling system cannot be flooded when there is a lot of water, such as when it rains and when high-pressure car washing is used, to prevent damage to the products of the two subsystems. The low-voltage control of the compressor controller is connected to the wiring harness through a low-voltage connector, which requires the low-voltage connector to be waterproof (IP67) and resistant to high-pressure water gun impact (IP69K). Most of the low-voltage connectors of the new energy compressor controller in the prior art adopt a docking method, which is divided into a connector base and a connector docking piece. After the connector base and the docking piece are installed, the docking height varies from 60 to 80 mm, which is easy to occupy the space of other products in the car; in addition, the existing connectors and docking pieces are not properly docked or the wiring harness and the sealing ring are not properly installed, which is prone to water leakage and the existing connectors are easily damaged after collision. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing low-voltage connectors adopt a docking method, which is prone to improper docking and inadequate waterproof measures leading to water leakage, and the docking height is relatively high, which easily occupies space and causes damage to the connector after collision. A waterproof connector with low-voltage pin mortise, wire throwing and glue filling is provided.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a low-voltage pin mortise and wire-stripping waterproof connector. The waterproof connector comprises: a pin terminal, a wiring harness and a sheath;

[0006] A wire pressing terminal is provided at one end of the pin terminal, and the wire pressing terminal is perpendicular to the pin terminal;

[0007] The wiring harness is press-fitted and connected with the wire pressing terminal;

[0008] The sheath is arranged on the wire pressing terminal and is used for fixing the wire pressing terminal.

[0009] Preferably, the wiring harness and the crimping terminal are assembled and formed by tooling mortise and tenon pressing.

[0010] Preferably, the sheath is provided with a first waterproof glue pouring groove and a second waterproof glue pouring groove;

[0011] The sheath fixes the crimping terminal and the wire harness by screws.

[0012] Preferably, the first waterproof glue pouring groove is arranged at a middle position inside the sheath, and the second waterproof glue pouring groove is arranged at two side positions outside the sheath.

[0013] Preferably, the pin terminal is made of phosphor bronze, and the surface is nickel-plated and tin-plated.

[0014] The positive progressive effect of the utility model is that the utility model provides a low-voltage pin mortise, wire-swinging, glue-filled waterproof connector. The pin terminal and the wiring harness are pressed into a molded one-piece mold by mortise, wire-swinging, and injection molding. The pin terminal and the wiring harness have good pull-out performance, the pin terminal is not easy to fall off, the wiring harness is convenient, and it is firmly fixed, and no additional docking parts are required for plug-in docking; and the mold itself is small in size and does not occupy additional space, which is suitable for mass production and reduces production costs; in addition, the press-fitting part of the pin terminal and the wiring harness is designed with two glue-filled waterproof grooves, so that the connector of the utility model has a good waterproof effect and a sheath is also provided at the press-fitting part to protect the pin terminal from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a connector according to an embodiment of the utility model.

[0016] Figure 2 It is a front view of the connector according to an embodiment of the utility model.

[0017] Figure 3 It is a schematic structural diagram of a sheath according to an embodiment of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the first waterproof glue filling groove of an embodiment of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the second waterproof glue filling groove of an embodiment of the utility model.

[0020] Figure 6 It is a schematic diagram of the bending of the pin terminal of the connector according to the embodiment of the utility model.

[0021] Figure 7 This is a schematic diagram of assembling a connector and a compressor according to an embodiment of the utility model.

[0022] Figure 8 It is a schematic diagram of assembling the connector and the PTC according to an embodiment of the utility model.

[0023] Legend: 1. Pin terminal; 2. Wiring harness; 3. Sheath; 4. Crimp terminal; 5. First waterproof glue potting groove; 6. Second waterproof glue potting groove; 7. Compressor; 8. PTC; 9. Waterproof connector. DETAILED DESCRIPTION

[0024] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0025] Example

[0026] like Figure 1-2 As shown, this embodiment provides a low-voltage pin mortise and wire-stripping waterproof connector. The waterproof connector 9 comprises: a pin terminal 1, a wiring harness 2 and a sheath 3; a crimping terminal 4 is provided at one end of the pin terminal 1, and the crimping terminal 4 is perpendicular to the pin terminal 1; the wiring harness 2 is press-fitted and connected to the crimping terminal 4; the sheath 3 is provided on the crimping terminal 4 to fix the crimping terminal 4.

[0027] like Figure 1-2 As shown, in this embodiment, the wire harness 2 and the crimping terminal 4 are assembled and formed by tooling mortising. Specifically, the wire harness 2 and the crimping terminal 4 are put into the mold for injection molding after being mortised by the tooling. This embodiment adopts the method of line-swinging injection molding, so that the pull-out performance of the pin terminal 1 and the wire harness 2 is good, the pin terminal 1 is not easy to fall off, and the wiring of the wire harness 2 is convenient, so that the wire harness 2 and the pin terminal 1 are firmly pressed and there will be no leakage caused by improper docking. The pin terminal 1 and the wire harness 2 are mortised and injection-molded to form an integrated mold, which is small in size and low in production cost, and is suitable for mass production.

[0028] like Figure 3-5 As shown, in this embodiment, the sheath 3 is provided with a first waterproof glue pouring groove 5 and a second waterproof glue pouring groove 6; the sheath 3 is fixed with the crimping terminal 4 and the wiring harness 2 by screws. The first waterproof glue pouring groove 5 is arranged in the middle position inside the sheath 3, and the second waterproof glue pouring groove 6 is arranged on both sides of the outside of the sheath 3. Specifically, the material of the sheath 3 is PA66 plus glass fiber, which means that glass fiber reinforcement is added to polyamide 66 resin. This composite material has excellent strength, stiffness and heat resistance. Figure 3 As shown, the cross section of the sheath 3 is elliptical, and fixing holes are provided at both ends, which are used to fix the sheath 3 to the pressing part of the crimping terminal 4 and the wiring harness 2 by screws to fix and protect the crimping terminal 4; in this embodiment, two waterproof glue filling grooves are opened on the sheath 3 and sealant is poured into it, so that the pin terminal 1 and the wiring harness 2 have a strong waterproof effect.

[0029] like Figure 6As shown in this embodiment, the material of the pin terminal 1 is phosphor bronze, and the surface is nickel-plated and tin-plated. Specifically, phosphor bronze is an alloy of copper, tin and phosphorus, and has a hard texture and excellent properties such as toughness, elasticity, wear resistance and corrosion resistance. Nickel-plating and tin-plating on the surface further enhance the wear resistance and corrosion resistance of the pin, and the pin terminal 1 is not easily damaged. The pin terminal 1 of this embodiment can also be bent according to the needs of placing it in different products, which is highly practical and does not require different pin terminals 1 to be designed for different products.

[0030] like Figure 7-8 As shown, the waterproof connector 9 of this embodiment can be placed in the compressor 7 and PTC 8. The waterproof connector 9 is small in size and does not occupy the installation space of other components of the compressor 7 and PTC 8. The waterproof connector 9 is sealed with a sealing gasket for installation with the compressor 7 and PTC 8, which has a good waterproof effect and a waterproof grade of IP67\IP6K9K. In addition, the waterproof connector 9 of this embodiment is easy to install. It only needs to insert the pin terminal 1 of the waterproof connector 9 into the corresponding position of the device and seal it with a sealing gasket. The installation is simple and convenient.

[0031] This embodiment provides a low-voltage pin mortise and wire-stripping waterproof connector with glue injection. The pin terminal and the wiring harness are pressed into a molded one-piece mold by mortise and wire-stripping injection molding. The pin terminal and the wiring harness have good pull-out performance, the pin terminal is not easy to fall off, the wiring harness is convenient, and it is firmly fixed, and no additional docking parts are required for plug-in and docking; and the mold itself is small in size and does not occupy additional space, which is suitable for mass production and reduces production costs; in addition, two glue-filled waterproof grooves are designed at the press-fitting part of the pin terminal and the wiring harness, so that the connector of the utility model has a good waterproof effect and a sheath is also provided at the press-fitting part to protect the pin terminal from damage.

[0032] The working principle of the utility model is: the pin terminal 1 and the docking wire harness 2 are pressed and then placed in a mold for injection molding, so that they are pressed into an integrally formed waterproof connector 9 mold; a sheath 3 is set at the pressing location, and two waterproof glue pouring grooves are designed inside the sheath 3 and glue is poured to achieve the purpose of waterproofing. The waterproof connector 9 of the utility model is assembled in the compressor 7 and PTC 8. It is only necessary to directly insert the end of the wire harness 2 into the corresponding position of the compressor 7 and PTC 8 and seal it with a sealing gasket, without occupying other spaces of the two devices. The waterproof connector 9 is produced by injection molding and glue pouring, and the pin terminal 1 can be bent according to the needs of the device.

[0033] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A low-voltage pin mortise and wire-casting waterproof connector, characterized in that: The waterproof connector comprises: a pin terminal, a wiring harness and a sheath; A wire pressing terminal is provided at one end of the pin terminal, and the wire pressing terminal is perpendicular to the pin terminal; The wiring harness is press-fitted and connected with the wire pressing terminal; The sheath is arranged on the wire pressing terminal and is used for fixing the wire pressing terminal.

2. The low-voltage pin mortise and wire-casting waterproof connector as claimed in claim 1, characterized in that: The wire harness and the crimping terminal are assembled and formed by tooling mortise and tenon pressing.

3. The low-voltage pin mortise and wire-casting waterproof connector as claimed in claim 1, characterized in that: The sheath is provided with a first waterproof glue pouring groove and a second waterproof glue pouring groove; The sheath fixes the crimping terminal and the wire harness by screws.

4. The low-voltage pin mortise and wire-casting waterproof connector as claimed in claim 3, characterized in that: The first waterproof glue pouring groove is arranged at the middle position inside the sheath, and the second waterproof glue pouring groove is arranged at the two side positions outside the sheath.

5. The low-voltage pin mortise and wire-casting waterproof connector according to claim 1, characterized in that: The pin terminal is made of phosphor bronze, and its surface is nickel-plated and tin-plated.

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