Connector

Abstract

The invention relates to a connector which is arranged on a printed circuit board and used for plugging a motor terminal. The connector comprises a shell, a first terminal, a second terminal and a plurality of fixing pieces. The shell comprises a body, a first open end and a second open end. The first terminal is provided with a first bottom part and a first extension part which are connected with each other. The second terminal is provided with a second bottom part and a second extension part which are connected with each other. And the fixing piece is partially arranged in the shell. Wherein the first opening end and the second opening end jointly define a first accommodating space and a second accommodating space in the body, the first accommodating space is formed above the second accommodating space, the first accommodating space is used for local arrangement of the first terminal, and the second accommodating space is used for local arrangement of the second terminal. According to the invention, the contact stability of the terminals can be improved, the connector can be suitable for a large current condition, and the stability of the connector on a printed circuit board can be ensured when the connector is plugged and unplugged.

Description

Technical Field

[0001] The invention relates to a connector, in particular to a connector with multi-point contact terminals and used for connecting a vehicle electric window motor. Background Art

[0002] The electric motor for the power window of a car is one of the common devices in modern cars, providing drivers and passengers with convenient window lifting and lowering functions. Among them, connectors play a key role in this technology, which is used to connect wires or cables to the power window motor and the electrical system of the vehicle. Due to its wide range of applications, the connector for the power window motor of a car has become a common technology in the field of automotive electronics.

[0003] However, in the application of connectors in automotive power window motors, blanking terminals are a common connection structure. Although they are widely used, they have some disadvantages that cannot be ignored. First, the thickness of the conductive terminal sheet is relatively large, and a large insertion force may be required during the joining process of the terminal connector and the power window motor. There are also relatively few contact points between the terminals. These factors combined may result in high resistance and low current passing through. They are also prone to heat and pose challenges in heat dissipation. In addition, due to the inherent structural characteristics of the manufacturing process of blanking terminals, these terminals are also prone to wear, which leads to problems with electrical connections. Copper chips may even be released during the plug-in and unplugging process, resulting in dents on the terminals and poor contact performance.

[0004] In view of this, the present invention provides a connector to solve the problems of connector contact stability, heat generation and installation stability faced in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a connector having conductive terminals made by tearing technology, especially plugging the motor terminals and the contact areas of multiple conductive terminals into the connector in a way of simultaneous three-point contact. The multi-point contact method can increase the stability of the terminal contact and can be applied to large current situations. In addition, a chamfer design is added to the housing of the present invention, and solder feet are provided at the front and rear areas of the bottom of the housing, so that the connector and the motor can be docked at the correct position and transmit current, and ensure the stability of the connector on the printed circuit board when plugging and unplugging.

[0006] To achieve the above-mentioned purpose, the present invention provides a connector, which is arranged on a printed circuit board for a motor terminal to be plugged in. The connector includes a shell, a first terminal, a second terminal, and a plurality of fixing parts. The shell includes a body, a first opening end and a second opening end, and the first opening end and the second opening end are formed opposite to the body and are connected to each other. The first terminal extends to the second opening end via the first opening end, and the first terminal has a first bottom and a first extension portion connected to each other, and the first extension portion is extended along a first direction to the first opening end, and the first bottom is extended along a second direction to the second opening end. The second terminal extends to the second opening end via the first opening end, and the second terminal has a second bottom and a second extension portion connected to each other, and the second extension portion is extended along the first direction to the first opening end, and the second bottom is extended along the second direction to the second opening end. The fixing part is partially arranged in the shell. The first opening end and the second opening end together define a first accommodation space and a second accommodation space in the body. The first accommodation space is formed on the second accommodation space. The first accommodation space is used for local setting of the first terminal, and the second accommodation space is used for local setting of the second terminal.

[0007] In one embodiment, the first extension portion further includes a first upper bending section and two first lower bending sections, and the second extension portion further includes a second upper bending section and two second lower bending sections, the first upper bending section and the first lower bending section are arranged alternately up and down, and the second upper bending section and the second lower bending section are arranged alternately up and down.

[0008] In one embodiment, when the motor terminal is plugged into the first terminal and the second terminal, one connecting end of the motor terminal can simultaneously contact the first upper bending section and the first lower bending section, and the other connecting end of the motor terminal can simultaneously contact the second upper bending section and the second lower bending section.

[0009] In one embodiment, a first spacing is formed between the first lower bending sections, the first upper bending sections define a first width, a second spacing is formed between the second lower bending sections, the second upper bending sections define a second width, the first spacing is equal to the first width, and the second spacing is equal to the second width.

[0010] In one embodiment, the main body includes a first protrusion, a second protrusion, and a third protrusion, the first protrusion, the second protrusion and the third protrusion are arranged parallel to each other along the second direction, the first protrusion also has a first through hole, the second protrusion also has a plurality of second through holes, the third protrusion also has a plurality of third through holes, the first upper bend section is partially accommodated in the first through hole, the first lower bend section and the second upper bend section are partially accommodated in the second through hole, and the second lower bend section is partially accommodated in the third through hole.

[0011] In one embodiment, the third protrusion further has two grooves, and each of the grooves is respectively corresponding to the setting of each of the fixing members.

[0012] In one embodiment, the main body also has two first guide portions and two second guide portions, the first guide portions are respectively formed on the first protrusion and the second protrusion, and the second guide portions are respectively formed on the second protrusion and the third protrusion, so that the motor terminal abuts against the first terminal and the second terminal along the first guide portion and the second guide portion.

[0013] In one embodiment, the main body further has two third guiding portions, which are respectively formed on two opposite sides of the first protruding portion.

[0014] In one embodiment, each of the fixing members has a foot portion, the foot portion is inserted through the printed circuit board along the second direction, and the first bottom portion, the second bottom portion and the foot portion are fixed to the printed circuit board by welding.

[0015] In one embodiment, the first protrusion and the second protrusion jointly define a first plug-in slot, the second protrusion and the third protrusion jointly define a second plug-in slot, the first upper bend section and the first lower bend section partially extend into the first plug-in slot, and the second upper bend section and the second lower bend section partially extend into the second plug-in slot.

[0016] After referring to the accompanying drawings and the embodiments described below, those skilled in the art will understand other objects, means and embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the connector of the present invention being arranged on a printed circuit board and a motor terminal;

[0018] Figure 2 is a schematic diagram of a connector and a printed circuit board of the present invention;

[0019] Figure 3 A schematic diagram of the connector and the printed circuit board of the present invention from another perspective;

[0020] Figure 4 An exploded view of the connector of the present invention;

[0021] Figure 5 is a schematic diagram of a housing of the present invention;

[0022] Figure 6 is a schematic diagram of another viewing angle of the housing of the present invention;

[0023] Figure 7 is a schematic diagram of the first terminal, the second terminal and the fixing member of the present invention;

[0024] Figure 8 is a schematic diagram of the first terminal and the second terminal of the present invention;

[0025] Fig. 9 A partial perspective view of the connector of the present invention;

[0026] Fig.10 is a side view of the connector of the present invention; and

[0027] Fig.11 It is a cross-sectional view of the connector of the present invention.

[0028] Description of Reference Numerals

[0029] 100 Connectors

[0030] 200 PCB

[0031] 300 Motor Terminal

[0032] 1 Housing

[0033] 11 body

[0034] 111 first protrusion

[0035] 1111 First through hole

[0036] 111 first protrusion

[0037] 112 second protrusion

[0038] 1121 Second through hole

[0039] 113 Third protrusion

[0040] 1131 Third through hole

[0041] 1132 Groove

[0042] 114 First guide part

[0043] 115 Second guide section

[0044] 116 Third Guide

[0045] 12 First open end

[0046] 13 Second open end

[0047] 2 First terminal

[0048] 21 First Bottom

[0049] 22 First extension

[0050] 221 First upper bending section

[0051] 222 First lower bending section

[0052] 3 Second terminal

[0053] 31 Second Bottom

[0054] 32 Second extension

[0055] 321 Second upper bending section

[0056] 322 Second lower bending section

[0057] 4 Fixing parts

[0058] 41 Feet

[0059] A1 first spacing

[0060] A2 Second Spacing

[0061] B1 First Width

[0062] B2 Second Width

[0063] D1 First direction

[0064] D2 Second direction

[0065] F1 first socket

[0066] F2 Second Plug-in Slot

[0067] S1 The first storage space

[0068] S2: second accommodation space. DETAILED DESCRIPTION

[0069] The present invention will be explained below by way of examples, and the examples of the present invention are not intended to limit the present invention to any specific environment, application or special method as described in the examples. Therefore, the description of the examples is only for the purpose of explaining the present invention, and is not intended to limit the present invention. It should be noted that in the following examples and drawings, some elements that are not directly related to the present invention have been omitted and are not shown, and the size relationship and quantity between the elements in the drawings are only for easy understanding, and are not intended to limit the present invention.

[0070] Please read first Figures 1 to 4 . Figure 1 FIG. 1 is a schematic diagram of the connector 100 of the present invention being disposed on a printed circuit board 200 and a motor terminal 300 docking with the connector 100 . Figure 2 and Figure 3 It is a schematic diagram of the combination of the connector and the printed circuit board of the present invention. Figure 4FIG. 1 is an exploded view of a connector 100 of the present invention. The connector 100 comprises a housing 1, a first terminal 2, a second terminal 3, and two fixing members 4. Figure 1 The connector 100 is shown to be disposed on a printed circuit board 200 and can be plugged into a motor terminal 300 .

[0071] Please also refer to Figure 5 and Figure 6 . The front and rear perspectives of the housing 1 of the present invention are shown respectively. The housing 1 includes a main body 11, a first open end 12, and a second open end 13. The first open end 12 and the second open end 13 are formed on the main body 11 in front and back correspondence and are connected to each other, wherein the first open end 12 provides a space for docking with the motor terminal 200. The first open end 12 and the second open end 13 jointly define a first accommodating space S1 and a second accommodating space S2 in the main body 11. The first accommodating space S1 is formed above the second accommodating space S2, and the first accommodating space S1 can be partially set in the first terminal 2, and the second accommodating space S2 can be partially set in the second terminal 3.

[0072] In detail, the body 11 further includes a first protruding portion 111, a second protruding portion 112, a third protruding portion 113, two first guide portions 114, two second guide portions 115, and two third guide portions 116. The first protruding portion 111, the second protruding portion 112, and the third protruding portion 113 extend from the body 11 along a first direction D1, and the first protruding portion 111, the second protruding portion 112, and the third protruding portion 113 are arranged parallel to each other along a second direction D2. Among them, the first protruding portion 111 also has a first through hole 1111, the second protruding portion 112 also has three second through holes 1121, and the third protruding portion 113 also has two third through holes 1131 and two grooves 1132. The first terminal 2 and the second terminal 3 can be partially disposed in the first through hole 1111, the second through hole 1121, and the third through hole 1131, respectively. The two grooves 1132 can be respectively provided for the two fixing members 4. The first protrusion 111 and the second protrusion 112 jointly define a first insertion groove F1, and the second protrusion 112 and the third protrusion 113 jointly define a second insertion groove F2. In addition, the first guide portions 114 are respectively formed at the lower edge of the first protrusion 111 and the upper edge of the second protrusion 112, the first guide portions 114 correspond to each other and each first guide portion 114 presents an inclined angle. The second guide portions 115 are respectively formed at the lower edge of the second protrusion 112 and the upper edge of the third protrusion 113, the second guide portions 115 correspond to each other and each second guide portion 115 presents an inclined angle. The third guide portions 116 are respectively formed at opposite sides of the upper edge of the first protrusion 111. The first guide portion 114 and the second guide portion 115 can guide the motor terminal 300 into the first insertion slot F1 and the second insertion slot F2, so that the motor terminal 300 can be inserted into the first terminal 2 and the second terminal 3 at the correct position, thereby improving the stability of the connection of the connector 100. The first guide portion 114, the second guide portion 115, and the third guide portion 116 can be designed with chamfers, mainly for the connector 100 to be connected to the motor housing, which can compensate for the risk of misalignment or tolerance of the connector 100.

[0073] Next, the first terminal 2 and the second terminal 3 of the present invention are further described. Figure 7The first terminal 2 extends from the first opening end 12 to the second opening end 13. The first terminal 2 has a first bottom 21 and a first extension portion 22. The first extension portion 22 is extended along the first direction D1 and is disposed at the first opening end 12. The first bottom 21 is extended along the second direction D2 and is disposed at the second opening end 13. The first bottom 21 and the first extension portion 22 are connected to each other, presenting an L-shaped structure and disposed in the housing 1. In detail, the first extension portion 22 also includes a first upper bending section 221 and two first lower bending sections 222. The first upper bending section 221 and the first lower bending section 222 are arranged alternately up and down. The first upper bending section 221 is partially accommodated in the first through hole 1111, and the first lower bending section 222 is partially accommodated in the second through hole 1121. The first upper bending section 221 and the first lower bending section 222 partially extend into the first plug-in slot F1 , so that the partially exposed first upper bending section 221 and the first lower bending section 222 form a contactable area that can be plugged with a connecting end of the motor terminal 300 .

[0074] The second terminal 3 also extends from the first opening end 12 to the second opening end 13. The second terminal 3 has a second bottom 31 and a second extension 32. The second extension 32 is extended along the first direction D1 and arranged at the first opening end 12. The second bottom 31 is extended along the second direction D2 and arranged at the second opening end 13. The second bottom 31 and the second extension 32 are connected to each other, presenting an L-shaped structure and arranged in the housing 1, wherein the first terminal 2 is arranged on the second terminal 3. In detail, the second extension 32 also includes a second upper bending section 321 and two second lower bending sections 322. The second upper bending section 321 and the second lower bending section 322 are arranged alternately up and down. The second upper bending section 321 is partially accommodated in the second through hole 1121, and the second lower bending section 322 is partially accommodated in the third through hole 1131. And the second upper bending section 321 and the second lower bending section 322 partially extend in the second plug-in slot F2, so that the partially exposed second upper bending section 321 and the second lower bending section 322 form another contactable area, which can be plugged with the other connecting end of the motor terminal 300. The connection relationship of the motor terminal 300 will be described in detail below.

[0075] Please also read Fig.10. When the motor terminal 300 is plugged into the first terminal 2 and the second terminal 3, one connecting end of the motor terminal 300 can contact the first upper bending section 221 and the two first lower bending sections 222 at the same time, and the upper surface of the connecting end contacts the first upper bending section 221, and the lower surface contacts the two first lower bending sections 222. On the other hand, the other connecting end of the motor terminal 300 can contact the second upper bending section 321 and the two second lower bending sections 322 at the same time, and the upper surface of the other connecting end contacts the second upper bending section 321, and the lower surface contacts the two second lower bending sections 322. One connecting end of the motor terminal 300 contacts three places of the first terminal 2 at the same time, and the other connecting end contacts three places of the second terminal 3 at the same time. This three-point contact design can increase the stability of the contact between the conductive first terminal 2, the second terminal 3 and the motor terminal 300, and is suitable for high-current connectors such as automotive power window motors. The three-point contact design is also similar to the parallel contact. By increasing the contact points between the terminals, on the one hand, the voltage is reduced to increase the current that can pass through, and on the other hand, the heat energy can be evenly dispersed to avoid concentrated overheating.

[0076] Furthermore, if Figure 8 As shown, a first spacing A1 is formed between the two first lower bending sections 222, and the first upper bending section defines a first width B1, and the first spacing A1 is equal to the first width B1. On the other hand, a second spacing A2 is formed between the two second lower bending sections 322, and the second upper bending section 321 defines a second width B2, and the second spacing A2 is equal to the second width B2. It should be noted that the second terminal 2 and the third terminal 3 are formed by a tearing method. Compared with the traditional blanking method, adjacent contact points of the terminals will not have gaps, so the contact area of ​​the terminals can be increased, so that when a large current passes through the connector 100, the heat dissipation efficiency of the connector 100 during use is greatly improved.

[0077] Please also read Fig. 9 and Fig.11 , the fixing member 4 is partially disposed in the housing 1, and the fixing member 4 is correspondingly disposed in the groove 1132. Each of the fixing members 4 has a foot 41, and the foot 41 is penetrated through the printed circuit board 200 along the second direction D2, and has a board lock design that can be firmly engaged with the printed circuit board 200. Then, the first bottom 21 of the first terminal 2, the second bottom 31 of the second terminal 3 and the foot 41 can be fixed to the printed circuit board 200 by welding. As a result, the foot 41 of the fixing member 4 is provided in front of the terminal docking area, and the first bottom 21 and the second bottom 31 are soldered to the printed circuit board 200 by soldering at the rear of the terminal docking area, which can increase the holding stability of the connector 100 and avoid the risk of lifting when the connector 100 is inserted into the motor terminal 300.

[0078] In summary, the connector of the present invention includes a first terminal and a second terminal with three contacts, which can be plugged into the positive and negative poles of the motor terminals to start power transmission. On the other hand, the housing of the present invention includes a guide angle design for guiding the motor housing plugging and the terminal plugging, so that the connector and the motor can be docked at the correct position, and the front and rear areas of the corresponding terminal connection on the printed circuit board are both welded, which can improve the stability of the connector connection.

[0079] The above embodiments are only used to illustrate the implementation methods of the present invention and to explain the technical features of the present invention, and are not used to limit the protection scope of the present invention. Any modification or equivalent substitution arrangement that can be easily completed by a person skilled in the art belongs to the scope claimed by the present invention, and the scope of protection of the present invention shall be subject to the claims.

Claims

1. A connector, characterized in that: A connector is arranged on a printed circuit board for plugging a motor terminal, and the connector comprises: A housing, comprising a body, a first opening end and a second opening end, wherein the first opening end and the second opening end are formed opposite to each other on the body and are connected to each other; A first terminal extends from the first opening end to the second opening end, the first terminal having a first bottom and a first extending portion connected to each other, the first extending portion extending along a first direction to the first opening end, and the first bottom extending along a second direction to the second opening end; A second terminal extends from the first opening end to the second opening end, the second terminal having a second bottom and a second extending portion connected to each other, the second extending portion extending along the first direction and disposed at the first opening end, and the second bottom extending along the second direction and disposed at the second opening end; as well as A plurality of fixing members are partially disposed in the housing; The first opening end and the second opening end together define a first accommodation space and a second accommodation space in the body. The first accommodation space is formed on the second accommodation space. The first accommodation space is used for local setting of the first terminal, and the second accommodation space is used for local setting of the second terminal.

2. The connector according to claim 1, characterized in that: The first extension portion further includes a first upper bending section and two first lower bending sections, and the second extension portion further includes a second upper bending section and two second lower bending sections. The first upper bending section and the first lower bending section are arranged alternately up and down, and the second upper bending section and the second lower bending section are arranged alternately up and down.

3. The connector according to claim 2, characterized in that: When the motor terminal is plugged into the first terminal and the second terminal, one connecting end of the motor terminal can contact the first upper bending section and the first lower bending section at the same time, and the other connecting end of the motor terminal can contact the second upper bending section and the second lower bending section at the same time.

4. The connector according to claim 2, characterized in that: A first spacing is formed between the first lower bending sections, the first upper bending sections define a first width, a second spacing is formed between the second lower bending sections, the second upper bending sections define a second width, the first spacing is equal to the first width, and the second spacing is equal to the second width.

5. The connector according to claim 2, characterized in that: The main body includes a first protrusion, a second protrusion, and a third protrusion. The first protrusion, the second protrusion and the third protrusion are arranged parallel to each other along the second direction. The first protrusion also has a first through hole, the second protrusion also has a plurality of second through holes, and the third protrusion also has a plurality of third through holes. The first upper bending section is partially accommodated in the first through hole, the first lower bending section and the second upper bending section are partially accommodated in the second through hole, and the second lower bending section is partially accommodated in the third through hole.

6. The connector according to claim 5, characterized in that: The third protrusion also has two grooves, and each groove is respectively corresponding to each fixing member.

7. The connector according to claim 5, characterized in that: The main body also has two first guide portions and two second guide portions, wherein the first guide portions are respectively formed on the first protrusion and the second protrusion, and the second guide portions are respectively formed on the second protrusion and the third protrusion, so that the motor terminal abuts against the first terminal and the second terminal along the first guide portion and the second guide portion.

8. The connector according to claim 5, characterized in that: The main body also has two third guiding portions, which are respectively formed on two opposite sides of the first protruding portion.

9. The connector according to claim 1, characterized in that: Each of the fixing members has a foot portion, which is inserted into the printed circuit board along the second direction. The first bottom portion, the second bottom portion and the foot portion are fixed to the printed circuit board by welding.

10. The connector according to claim 5, characterized in that: The first protrusion and the second protrusion jointly define a first plug-in slot, the second protrusion and the third protrusion jointly define a second plug-in slot, the first upper bend section and the first lower bend section partially extend in the first plug-in slot, and the second upper bend section and the second lower bend section partially extend in the second plug-in slot.

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