CN218896840U - Signal terminal crimping structure - Google Patents
Signal terminal crimping structure Download PDFInfo
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- CN218896840U CN218896840U CN202223153352.XU CN202223153352U CN218896840U CN 218896840 U CN218896840 U CN 218896840U CN 202223153352 U CN202223153352 U CN 202223153352U CN 218896840 U CN218896840 U CN 218896840U
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Abstract
The utility model discloses a signal terminal crimping structure, which relates to the technical field of signal terminals and comprises the following components: the signal terminals are in an inverted arc shape, and are arranged in the terminal blocks, so that one end of each signal terminal is exposed out of the lower surface of the terminal block; the terminal seat is arranged in the shell, the shell is fixed at a preset position of the semiconductor component, and one end of each inverted arch-shaped signal terminal, which is exposed out of the lower surface of the terminal seat, is connected with the substrate of the semiconductor component; one end of the inverted arch-shaped signal terminal generates certain pressure with the substrate of the semiconductor through the deformation of the signal terminal, and is tightly connected with the substrate of the semiconductor; the signal terminal crimping structure is low in manufacturing difficulty, simple in structure and high in reliability, and the IGBT product yield can be effectively improved.
Description
Technical Field
The utility model relates to the technical field of signal terminals, in particular to a signal terminal crimping structure.
Background
The insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) plays a vital role in the new energy field, and is a core component of equipment such as a motor controller, an inverter, a vehicle-mounted air conditioner, a charging pile and the like in the new energy field.
The IGBT module comprises a metal terminal connected with the copper bar, and the metal terminal is connected with a direct copper-clad ceramic substrate (Direct Bonding Copper, DBC) on the IGBT module to form an effective circuit; at present, the connection between a metal terminal of an IGBT and a DBC is mainly performed by means of solder sintering welding and ultrasonic friction welding, and the problems of cold joint and uneven terminal welding occur during welding due to limited process precision of sintering welding; because the metal terminals are vertically and tightly arranged with the DBC, the metal terminals are required to be designed and opened by using ultrasonic friction welding, and the process difficulty is high, so that the problem of low IGBT product yield is caused by the two welding methods.
Disclosure of Invention
Based on this, it is necessary to provide a signal terminal crimping structure to solve the problem that the IGBT product yield is low due to the adoption of the sinter welding or the ultrasonic friction welding of the signal terminal in the prior art.
Based on the above technical problems, an embodiment of the present utility model provides a signal terminal crimping structure, including:
the signal terminals are in an inverted arc shape, and are arranged in the terminal blocks, so that one end of each signal terminal is exposed out of the lower surface of the terminal block;
the terminal seat is arranged in the shell, and the shell is fixed at a preset position of the semiconductor component, so that one end of each inverted arch-shaped signal terminal, which is exposed out of the lower surface of the terminal seat, is connected with the substrate of the semiconductor component.
The scheme has the following beneficial effects:
according to the signal terminal crimping structure, the inverted arch-shaped signal terminal is arranged in the terminal seat, the terminal seat is arranged in the shell, the shell is fixedly connected with the semiconductor component, and one end of the inverted arch-shaped signal terminal generates certain pressure with the substrate of the semiconductor through deformation of the signal terminal and is tightly connected with the substrate of the semiconductor; the signal terminal crimping structure is low in manufacturing difficulty, simple in structure and high in reliability, and the IGBT product yield can be effectively improved.
Optionally, the signal terminal includes:
the signal terminal comprises a first end part, a first bending part, a middle part, a second bending part and a second end part, wherein the first bending part and the second bending part are S-shaped, and the first end part, the first bending part, the middle part, the second bending part and the second end part are sequentially connected to form the inverted arch-shaped signal terminal.
Optionally, the first end is provided with a first limiting structure of the signal terminal, and the first limiting structure is used for fixing the first end to the terminal seat in a clamping manner; the second end part is provided with a second limiting structure of the signal terminal, and the second limiting structure is used for clamping and fixing the second end part on the terminal seat.
Optionally, the first end includes:
the first branch and the second branch of body coupling, wherein, first branch with the second branch is rectangular structure, first branch's width is less than the width of second branch, the terminal surface of first branch with the terminal surface perpendicular junction of second branch forms first limit structure.
Optionally, the second end portion includes:
and the third branch and the fourth branch are integrally connected, wherein the width of the third branch is larger than that of the fourth branch, and the second limiting structure is formed at the vertical connection position of the end face of the third branch and the end face of the fourth branch.
Optionally, the terminal seat is provided with a preset number of signal terminal slots, and each signal terminal is respectively installed in a corresponding signal terminal slot.
Optionally, the signal terminal groove includes:
the groove bottom is provided with a first limiting surface and a second limiting surface at two ends of the groove bottom respectively, and a placing space is formed between the first limiting surface and the second limiting surface and used for placing the first bending part, the middle part and the second bending part.
Optionally, a first opening is formed in the bottom of the signal terminal groove, a second opening is formed in the top of the signal terminal groove, the first end portion penetrates out of the second opening, and the second end portion penetrates out of the first opening;
the first bending part, the middle part and the second bending part are sequentially connected to form a concave structure, and a convex surface of the concave structure is attached to the second limiting surface.
Optionally, the terminal block further includes:
the terminal comprises a shell, a first fixing groove, a second fixing groove and a third fixing groove, wherein the first fixing groove, the second fixing groove and the third fixing groove are formed in the shell, the first fixing groove, the second fixing groove and the third fixing groove are formed in the middle of the terminal base, the first fixing groove is formed in the left side of the terminal base, the second fixing groove is formed in the right side of the terminal base, and the third fixing groove is formed in the outer side of the first fixing groove and the outer side of the second fixing groove.
Optionally, the housing includes:
the first fixing hole is positioned on the left side of the shell, the second fixing hole is positioned on the right side of the shell, and the first fixing hole and the second fixing hole are used for being connected with the semiconductor component through rivets.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a signal terminal crimping structure provided in an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a signal terminal according to an embodiment of the present utility model;
fig. 3 is a schematic structural view of a signal terminal mounted on a terminal block according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a terminal block according to an embodiment of the present utility model;
the symbols are as follows:
1. a housing; 11. a first fixing hole; 12. a second fixing hole; 2. a terminal base; 21. a signal terminal groove; 211. a first limiting surface; 212. the second limiting surface; 213. a first opening; 214. a second opening; 215. a groove bottom; 216. a top; 22. a first fixing groove; 23. a second fixing groove; 24. a third fixing groove; 3. a signal terminal; 31. a first end; 311. a first branch; 312. a second branch; 313. a first limit structure; 32. a first bending portion; 33. an intermediate portion; 34. a second bending portion; 35. a second end; 351. a third branch; 352. a fourth branch; 353. and the second limiting structure.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.
It is to be understood that the embodiments set forth below represent the necessary information to enable those skilled in the art to practice the embodiments and illustrate the best mode of practicing the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications fall within the scope of the disclosure and the accompanying claims.
It will be further understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will also be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.
It will be further understood that the terms "upper," "lower," "left," "right," "front," "rear," "bottom," "middle," "top," and the like may be used herein to describe various elements and that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings merely to facilitate describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operate in a particular orientation, and that these elements should not be limited by these terms.
These terms are only used to distinguish one element from another element. For example, a first element could be termed a "upper" element, and, similarly, a second element could be termed a "upper" element, depending on the relative orientation of the elements, without departing from the scope of the present disclosure.
It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In one embodiment, there is provided a signal terminal crimping structure as shown in fig. 1, the signal terminal crimping structure including: the terminal comprises a shell 1, a terminal seat 2 and 4 signal terminals 3, wherein the signal terminals 3 are in an inverted arc shape, and the 4 signal terminals 3 are arranged in the terminal seat 2, so that one ends of the 4 signal terminals 3 are exposed out of the lower surface of the terminal seat 2.
The terminal block 2 is mounted in the housing 1, and the housing 1 is fixed at a predetermined position of the semiconductor component, for example, a position where the IGBT fixes the signal terminal crimping structure, so that one end of the 4 inverted arch-shaped signal terminals 3 exposed from the lower surface of the terminal block 2 is connected with the substrate of the semiconductor component, thereby being connected with the electrodes of the semiconductor component through the 4 signal terminals.
In one example, the number of the signal terminals 3 is N, where N is an integer greater than 0, each signal terminal is mounted in the terminal block 2, and the terminal block 2 is mounted in the housing 1 so that each signal terminal 3 is connected to the substrate of the semiconductor component.
According to the signal terminal crimping structure, an inverted arch-shaped signal terminal is installed in a terminal seat, the terminal seat is installed in a shell, the shell is fixedly connected with a semiconductor component, and one end of the inverted arch-shaped signal terminal and a substrate of the semiconductor generate certain pressure through deformation of the signal terminal and are tightly connected with the substrate of the semiconductor; the signal terminal crimping structure is low in manufacturing difficulty, simple in structure and high in reliability, and the IGBT product yield can be effectively improved.
In an embodiment, there is provided a signal terminal crimping structure including a housing 1, a terminal block 2, and 4 signal terminals 3 in fig. 1, wherein the signal terminals 3 are in an inverted arcuate shape, and the 4 signal terminals 3 are mounted in the terminal block 2 such that one ends of the 4 signal terminals 3 are exposed to a lower surface of the terminal block 2.
The terminal block 2 is mounted in the housing 1, and the housing 1 is fixed at a predetermined position of the semiconductor component, for example, a position of the IGBT fixing signal terminal crimping structure, so that one end of the 4 inverted arch-shaped signal terminals 3 exposed from the lower surface of the terminal block 2 is connected with the substrate of the semiconductor component.
In the present embodiment, referring to fig. 2, the signal terminal 3 includes: the first end part 31, the first bending part 32, the middle part 33, the second bending part 34 and the second end part 35, wherein the first bending part 31 and the second bending part 34 are S-shaped, the middle part 33 is of a rectangular plane structure, and the S-shaped first bending part 31 and the S-shaped second bending part 34 can provide a certain elastic force for the inverted-arc-shaped signal terminal 3, so that the signal terminal 3 is tightly pressed and bonded on a substrate through deformation; the first end portion 31, the first bent portion 32, the intermediate portion 33, the second bent portion 34, and the second end portion 35 are sequentially connected to the signal terminal 3 forming an inverted arch shape.
In an example, the first bending portion 32 and the second bending portion 34 may have a rectangular planar structure, and may also provide a certain elastic force to the inverted arcuate signal terminal 3.
In this embodiment, the first end 31 is provided with a first limiting structure 313 of the signal terminal, the first limiting structure 313 is used for clamping and fixing the first end 31 on the terminal seat 2, and the first end 31 is clamped and fixed in the terminal seat by the elasticity generated by the structure formed by connecting the first bending part 32, the middle part 33 and the second bending part 34, so as to prevent the first end 31 from moving up and down; the second end portion 35 is provided with a second limiting structure 353 of the signal terminal, and the second limiting structure 353 is used for fixing the second end portion 35 to the terminal seat in a clamping manner, and the second end portion 35 is fixed in the terminal seat in a clamping manner by elastic force generated by a structure formed by connecting the first bending portion 32, the middle portion 33 and the second bending portion 34, so as to prevent the second end portion 35 from moving up and down.
In this embodiment, the first end 31 includes a first branch 311 and a second branch 312 that are integrally connected, where the first branch 311 and the second branch 312 are both rectangular structures, the width of the first branch 311 is smaller than that of the second branch 312, and the end surface of the first branch 311 and the end surface of the second branch 312 form the first limiting structure 313 at the perpendicular connection position; a circular hole is also provided in the upper portion of the first branch 311 to facilitate connection with an external plug structure.
In this embodiment, the second end 35 includes a third branch 351 and a fourth branch 352 that are integrally connected, where the width of the third branch 351 is greater than the width of the fourth branch 352, and the perpendicular connection between the end surface of the third branch 351 and the end surface of the fourth branch 352 forms the second limiting structure 353 described above; the fourth branch 352 has an L-shaped structure, and the lower surface of the L-shape can be connected to the substrate, so that the conductive area between the signal terminal 3 and the substrate is increased, and the conductivity is improved.
In this embodiment, referring to fig. 3, 4 signal terminal slots 21,4 are provided in the terminal block 2, and the signal terminals 3 are respectively mounted in the corresponding signal terminal slots 21, and if the number of signal terminals is N, the number of corresponding signal terminal slots 21 is also N.
In the present embodiment, the signal terminal groove 21 includes: the groove bottom 215, wherein, the both ends of groove bottom 215 are provided with first spacing face 211 and second spacing face 212 respectively, form between first spacing face 211 and the second spacing face 212 and place the space for placing first flexion 32, intermediate part 33 and second flexion 34.
In this embodiment, the groove bottom 215 of the signal terminal groove 21 is provided with a first opening 213, the top 216 of the signal terminal groove 21 is provided with a second opening 214, the first end 31 passes through the second opening 214, and the second end 35 passes through the first opening 213; the first bending part 32, the middle part 33 and the second bending part 34 are sequentially connected to form a concave structure, and a convex surface of the concave structure is attached to the second limiting surface 212; the distance between the first limiting surface 211 and the second limiting surface 212 is equal to or smaller than the height of the protrusion of the middle part of the signal terminal 3, so that when the signal terminal 3 is installed in the signal terminal groove 21, the protrusion surface can be tightly attached to the second limiting surface 212, and a certain deformation pressure is generated.
In the present embodiment, referring to fig. 4, the terminal block 2 further includes: a first fixing groove 22, a second fixing groove 23 and a third fixing groove 24 for fixing the terminal block 2 through the housing 1, wherein the first fixing groove 22 and the second fixing groove 23 are located at the middle of the terminal block 2, the first fixing groove 22 is located at the left side of the terminal block 2, the second fixing groove 23 is located at the right side of the terminal block 2, and the third fixing groove 24 is located at the outer sides of the first fixing groove 22 and the second fixing groove 23; the three fixing grooves have preset depths, and the shell 1 is provided with a plug structure matched with the three fixing grooves, and the plug structure is downwards inserted into the fixing grooves to fix the terminal seat 2.
In this embodiment, referring to fig. 1, a housing 1 includes: the first fixing hole 11 and the second fixing hole 12, the first fixing hole 11 is located at the left side of the housing 1, the second fixing hole 12 is located at the right side of the housing 1, the first fixing hole 11 and the second fixing hole 12 are used for connecting with the semiconductor component through rivets, and therefore the terminal base 2 with the signal terminal 3 mounted thereon is pressed onto the substrate of the semiconductor component, and the signal terminal 3 is connected with the substrate.
The signal terminal crimping structure of this embodiment has the following characteristics:
(1) One end of the arched signal terminal generates certain pressure with the substrate of the semiconductor and is tightly connected with the substrate of the semiconductor; the signal terminal crimping structure is low in manufacturing difficulty, simple in structure and high in reliability, and the IGBT product yield can be effectively improved.
(2) The signal terminal sets up limit structure, and the signal terminal groove sets up the opening that matches with limit structure, wears out signal terminal's first tip and second tip through the opening, and limit structure and opening joint are fixed simultaneously, make signal terminal can be firm be fixed in the terminal seat.
(3) The shell is provided with the fixing hole, the signal terminal crimping structure is installed in a rivet fixing mode, and the installation process is simple and reliable.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (10)
1. A signal terminal crimping structure, characterized by comprising:
the signal terminals are in an inverted arc shape, and are arranged in the terminal blocks, so that one end of each signal terminal is exposed out of the lower surface of the terminal block;
the terminal seat is arranged in the shell, and the shell is fixed at a preset position of the semiconductor component, so that one end of each inverted arch-shaped signal terminal, which is exposed out of the lower surface of the terminal seat, is connected with the substrate of the semiconductor component.
2. The signal terminal crimping structure according to claim 1, wherein the signal terminal includes:
the signal terminal comprises a first end part, a first bending part, a middle part, a second bending part and a second end part, wherein the first bending part and the second bending part are S-shaped, and the first end part, the first bending part, the middle part, the second bending part and the second end part are sequentially connected to form the inverted arch-shaped signal terminal.
3. The signal terminal crimping structure according to claim 2, wherein the first end portion is provided with a first limit structure of the signal terminal for snap-fitting fixation of the first end portion to the terminal block; the second end part is provided with a second limiting structure of the signal terminal, and the second limiting structure is used for clamping and fixing the second end part on the terminal seat.
4. The signal terminal crimping structure of claim 3, wherein the first end portion comprises:
the first branch and the second branch of body coupling, wherein, first branch with the second branch is rectangular structure, first branch's width is less than the width of second branch, the terminal surface of first branch with the terminal surface perpendicular junction of second branch forms first limit structure.
5. The signal terminal crimping structure of claim 3, wherein the second end portion comprises:
and the third branch and the fourth branch are integrally connected, wherein the width of the third branch is larger than that of the fourth branch, and the second limiting structure is formed at the vertical connection position of the end face of the third branch and the end face of the fourth branch.
6. The signal terminal crimping structure according to claim 2, wherein the terminal block is provided therein with the predetermined number of signal terminal grooves, and each of the signal terminals is mounted in a corresponding one of the signal terminal grooves.
7. The signal terminal crimping structure of claim 6, wherein the signal terminal slot comprises:
the groove bottom is provided with a first limiting surface and a second limiting surface at two ends of the groove bottom respectively, and a placing space is formed between the first limiting surface and the second limiting surface and used for placing the first bending part, the middle part and the second bending part.
8. The signal terminal crimping structure of claim 7, wherein a first opening is provided at a bottom of the signal terminal slot, a second opening is provided at a top of the signal terminal slot, the first end portion passes out of the second opening, and the second end portion passes out of the first opening;
the first bending part, the middle part and the second bending part are sequentially connected to form a concave structure, and a convex surface of the concave structure is attached to the second limiting surface.
9. The signal terminal crimping structure according to claim 1, wherein the terminal block further comprises:
the terminal comprises a shell, a first fixing groove, a second fixing groove and a third fixing groove, wherein the first fixing groove, the second fixing groove and the third fixing groove are formed in the shell, the first fixing groove, the second fixing groove and the third fixing groove are formed in the middle of the terminal base, the first fixing groove is formed in the left side of the terminal base, the second fixing groove is formed in the right side of the terminal base, and the third fixing groove is formed in the outer side of the first fixing groove and the outer side of the second fixing groove.
10. The signal terminal crimping structure of claim 1, wherein the housing comprises:
the first fixing hole is positioned on the left side of the shell, the second fixing hole is positioned on the right side of the shell, and the first fixing hole and the second fixing hole are used for being connected with the semiconductor component through rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223153352.XU CN218896840U (en) | 2022-11-25 | 2022-11-25 | Signal terminal crimping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223153352.XU CN218896840U (en) | 2022-11-25 | 2022-11-25 | Signal terminal crimping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218896840U true CN218896840U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223153352.XU Active CN218896840U (en) | 2022-11-25 | 2022-11-25 | Signal terminal crimping structure |
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| Country | Link |
|---|---|
| CN (1) | CN218896840U (en) |
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- 2022-11-25 CN CN202223153352.XU patent/CN218896840U/en active Active
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