Thyristor module

Abstract

The thyristor module comprises a shell and a gate pole connecting structure, the gate pole connecting structure comprises a wiring terminal, the wiring terminal comprises a terminal seat, a contact pin and a first clamping part, the shell comprises a cavity opening, an end cover, a first limiting part and a second limiting part, the end cover is provided with a penetrating cavity, and the first limiting part and the second limiting part are arranged in the cavity opening. According to the thyristor module provided by the utility model, the wiring terminal can be quickly connected with an external matching connector, and the wiring terminal is fixed by limiting through the cooperation of the first limiting part and the second limiting part through the first clamping part, so that the thyristor module is convenient to assemble and operate, and the thyristor module has very good practicability and generalizability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the power electronics technical field, concretely relates to a thyristor module. BACKGROUND

[0002] Thyristor has the characteristic of silicon rectifier, so that it can work under high voltage and large current conditions, and its working process can be controlled, and is widely used in electronic circuits such as controllable rectification, AC voltage regulation, non-contact electronic switch, inversion and frequency conversion. At the same time, a radiator needs to be used with the thyristor to ensure that the heat generated by the thyristor during the working process can be discharged in time. The existing thyristor module generally includes a shell, an electrode connecting structure, a gate connecting structure provided on the shell, and a thyristor chip and an electrode sheet provided in the shell, wherein the gate connecting structure generally includes four wiring pins, and a silicon controlled rectifier control circuit is formed by the thyristor chip, the electrode sheet and the four wiring pins during the use stage of the thyristor module. In actual operation, the four wiring pins are respectively inserted into four positioning insertion holes on the shell, and the wiring pins need to be inserted into the positioning insertion holes one by one manually during assembly, and in order to enhance the reliability of the fixation of the wiring pins, a support positioning block and other additional structures are arranged in the shell to form positioning for the wiring pins. This structure leads to complicated assembly steps, is not conducive to assembly, and has the problem of low production efficiency. CONTENT OF THE UTILITY MODEL

[0003] To this end, the utility model aims to provide a thyristor module convenient to assemble.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The utility model provides a kind of thyristor module, including shell, gate connecting structure distributed on shell, the gate connecting structure includes terminal, the terminal includes terminal seat, the needle that is formed in terminal seat and is set on the first clamping portion of the both sides of terminal seat, the shell includes the cavity opening of being set on shell, the end cover that is adapted with the cavity opening and is formed clamping position on cavity opening, the first limiting portion that is correspondingly set with the cavity opening, and the second limiting portion adjacent to cavity opening position, and end cover is also provided with the cavity of being used for the terminal seat to pass out, by the embedding of terminal seat in cavity opening, and by the clamping between the first clamping portion in the second limiting portion and the first limiting portion, the installation of the terminal on the shell is formed, the needle that is passed in terminal seat one end stretches in shell, the other end forms the passage with terminal seat in the cavity.

[0006] Preferably, the side of the terminal seat is also distributed with a clamping block, which forms the clamping of the gate connecting structure of the thyristor module and the external matching connector.

[0007] Preferably, the first limiting part is a support block for upwardly supporting and limiting the terminal seat, and the second limiting part is a terminal clamping piece extending from the shell wall of the shell towards the cavity opening, the terminal clamping piece being adapted to be clamped with the first clamping part, and the terminal clamping piece and the support block cooperate to limit the first clamping part on the shell.

[0008] Preferably, an extension block is formed on the end cover towards the inside of the shell, a buckle is formed on the extension block relative to the direction of the cavity opening of the shell, a second clamping part for clamping the buckle is arranged in the shell, and the end cover inserted into the cavity opening is limited on the shell by cooperation of the buckle and the second clamping part.

[0009] Preferably, the first clamping part is arranged protruding from the side surface of the terminal seat, a through slot arranged in the up-down direction and a protruding block arranged on both sides of the through slot are formed on the first clamping part, the terminal clamped in the cavity opening passes through the through slot and is clamped on the upper part of the protruding block by the terminal clamping piece, and the bottom of the first clamping part abuts against the support block, thereby limiting the terminal on the shell.

[0010] Preferably, a avoiding slot is arranged on one side of the end cover relative to the clamping block, and the avoiding slot is communicated with the through cavity.

[0011] Preferably, the terminal clamping piece comprises two clamping hooks arranged oppositely and extending from the inside of the shell towards the cavity opening, and a spacing slot arranged between the two clamping hooks, and the two clamping hooks are clamped on the two protruding blocks, respectively.

[0012] The utility model discloses have the positive effect is: through the design of the terminal structure on the thyristor module, the cavity is set up on the shell simultaneously, and the end cover is adapted on the cavity, so that when the terminal is installed in the cavity position of the shell, the first limiting part in the shell and the second limiting part cooperate with the first clamping part of the terminal, and the terminal is limited in the shell, thereby simplifying the assembly process of the designed thyristor module, facilitating assembly, and the end cover can block the gap of the cavity part to ensure the integrity of the product appearance, and the utility model has good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following briefly introduces the drawings needed to be used in the specific embodiment or the prior art description. In the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0014] Figure 1 It is a three-dimensional schematic view of the thyristor module in the utility model;

[0015] Figure 2It is the explosion schematic view of the thyristor module in the utility model;

[0016] Figure 3 For Figure 2 It is the enlarged schematic view of the utility model;

[0017] Figure 4 It is the three-dimensional schematic view of the end cover in the utility model;

[0018] Figure 5 It is the three-dimensional schematic view of the terminal in the utility model;

[0019] Figure 6 It is the top view schematic view of the thyristor module in the utility model;

[0020] Figure 7 For Figure 6 It is the A-A cross-sectional schematic view of the utility model;

[0021] Figure 8 For Figure 6 It is the B-B cross-sectional schematic view of the utility model;

[0022] Figure 9 For Figure 7 It is the enlarged schematic view of the utility model;

[0023] Figure 10 For Figure 8 It is the enlarged schematic view of the utility model.

[0024] The signs shown in the figure are: 1, shell; 11, second clamping part; 12, cavity mouth; 12, cavity mouth; 13, first limiting part; 14, second limiting part; 141, interval slot; 142, clamping hook; 2, electrode connecting structure; 3, end cover; 31, avoiding slot; 32, through cavity; 33, extension block; 34, buckle; 4, thyristor chip; 5, electrode sheet; 6, terminal; 61, terminal seat; 62, clamping block; 63, protruding block; 64, first clamping part; 65, pin; 66, through slot. DETAILED DESCRIPTION

[0025] The embodiments of the technical scheme of the utility model are described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and the protection scope of the utility model cannot be limited by this.

[0026] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be the usual meaning understood by the technical personnel in the field of the utility model.

[0027] For example, Figures 1-10As shown, the thyristor module of this utility model embodiment includes a housing 1, an electrode connection structure 2, a gate connection structure, a thyristor chip 4, and an electrode sheet 5. The gate connection structure is located on the upper part of the housing 1. The gate connection structure includes a terminal block 6. The terminal block 6 includes a terminal base 61, a through-hole pin 65 formed in the terminal base 61, and a first locking part 64 disposed on both sides of the terminal base 61. The housing 1 includes a cavity 12 opened on the housing 1, an end cap 3 adapted to the cavity 12 and forming a locking position on the cavity 12, a first limiting part 13 corresponding to the cavity 12, and a second limiting part 14 adjacent to the cavity 12. The end cap 3 also has a through cavity 32 for the terminal base 61 to pass through. By embedding the terminal base 61 in the cavity 12 and by locking the first locking part 64 between the second limiting part 14 and the first limiting part 13, the terminal block 6 is formed on the housing 1. The pin 65, inserted into the terminal block 61, has one end extending into the housing 1 to connect to the internal wiring of the housing 1, and the other end extending out of the insertion cavity 32 along with the terminal block 61 to connect to the external wiring of the housing 1. By designing the structure of the terminal 6 on the thyristor module, a cavity 12 is simultaneously opened on the housing 1, and an end cap 3 is fitted on the cavity. When the terminal 6 is installed in the cavity 12 position of the housing 1, the first limiting part 13 and the second limiting part 14 inside the housing 1 cooperate with the first snap-fit ​​part 64 of the terminal 6 to limit the terminal 6 within the housing 1. This simplifies the assembly process of the designed thyristor module and facilitates assembly. Moreover, the end cap 3 can cover the gap at the cavity 12 to ensure the integrity of the product appearance, which has good practicality. In actual use, even if the first limiting part 13 and the second limiting part 14 loosen their limit on the first snap-fit ​​part 64, the end cap 3 can still limit it.

[0028] like Figure 5 , 8 As shown in Figure 10, the side of the terminal block 61 is also provided with a locking block 62. The locking block 62 forms a locking design between the gate connection structure of the thyristor module and the external mating connector. When the terminal block 6 can be plugged into the external mating connector, the locking block 62 locks into the hook on the external mating connector to ensure the reliability of the connection between the external mating connector and the terminal block 6.

[0029] like Figure 4 , 5As shown in Figures 8 and 10, the first limiting part 13 is a support block for supporting and limiting the terminal block 61 upwards, and the second limiting part 14 is a terminal clip extending from the shell wall of the housing 1 toward the cavity opening 12. The terminal clip is adapted to engage with the first engaging part 64. By cooperating with the support block, the first engaging part 64 is limited on the housing 1, thereby quickly and reliably fixing the wiring terminal 6 inside the housing 1.

[0030] Furthermore, the first latching part 64 protrudes from the side of the terminal base 61. A through groove 66 arranged in the vertical direction and protrusions 63 located on both sides of the through groove 66 are formed on the first latching part 64. The wiring terminal 6 embedded in the cavity 12 passes through the through groove 66 through the terminal clip and is latched onto the upper part of the protrusion 63. The bottom of the first latching part 64 abuts against the support block, which constitutes the limiting position of the wiring terminal 6 on the housing 1. Moreover, the terminal clip extending into the through groove 66 can provide a lateral limiting effect on the wiring terminal 6 to ensure the reliability of the positioning of the wiring terminal 6.

[0031] Preferably, the terminal clip includes two oppositely arranged hooks 142 extending from the housing 1 toward the cavity 12 and a spacer groove 141 located between the two hooks 142. The two hooks 142 are respectively engaged with the two protrusions 63. The spacer groove 141 allows the two hooks 142 to be relatively independent. Moreover, when the hooks 142 pass through the through groove 66, the spacer groove 141 provides deformation space for the hooks 142. The two hooks 142 respectively form a snap-fit ​​engagement with the upper part of the two protrusions 63, ensuring the reliability of the wiring terminal 6 installed in the housing 1.

[0032] like Figures 2-5 As shown in Figures 7-10, an extension block 33 is formed on the end cap 3 facing the inside of the housing 1. A buckle 34 is formed on the extension block 33 relative to the cavity opening 12 of the housing 1. The housing 1 is provided with a second engaging part 11 for engaging the buckle 34. The end cap 3 extending into the cavity opening 12 is positioned on the housing 1 by the engagement of the buckle 34 and the second engaging part 11, thus limiting the end cap 3 on the housing 1. This ensures that the end cap 3 can be positioned after being installed on the housing 1, thereby ensuring the reliability of the design of this utility model.

[0033] like Figure 5 , 8 As shown in Figure 10, an allowance groove 31 is provided on the side of the end cover 3 opposite to the locking block 62. The allowance groove 31 communicates with the through cavity 32. The allowance groove 31 provides clearance for the locking block 62, so that when the terminal 6 is connected to the external mating connector, the hook on the external mating connector can extend into the allowance groove 31 to connect with the locking block 62, thereby avoiding the collision and interference caused by the end cover 3.

[0034] Many modifications and variations of the described implementations can be made by those of ordinary skill in the art without departing from the spirit and scope of the disclosure. The implementations should therefore be understood to be illustrative only and not restrictive.

Claims

1. A thyristor module comprising a housing (1), gate connections distributed over the housing (1), characterized in that: The gate connection structure comprises a terminal (6), the terminal (6) comprises a terminal seat (61), a plug pin (65) formed in the terminal seat (61) and a first clamping part (64) arranged on both sides of the terminal seat (61), the shell (1) comprises a cavity (12) formed on the shell (1), a cover (3) matched with the cavity (12) and clamped on the cavity (12), a first limiting part (13) arranged corresponding to the cavity (12) and a second limiting part (14) arranged near the cavity (12), and a passing cavity (32) formed on the cover (3) for the terminal seat (61) to pass through, the terminal (6) is installed on the shell (1) by embedding the terminal seat (61) in the cavity (12) and clamping the first clamping part (64) between the second limiting part (14) and the first limiting part (13), one end of the plug pin (65) passing through the terminal seat (61) extends into the shell (1), and the other end of the plug pin (65) passes through the passing cavity (32) with the terminal seat (61).

2. A thyristor module according to claim 1, characterized in that: The side of the terminal seat (61) is also provided with a clamping block (62), and the gate connection structure of the thyristor module is clamped with the external matching connector through the clamping block (62).

3. Thyristor module according to claim 1 or 2, characterized in that: The first limiting part (13) is a supporting block for supporting and limiting the terminal seat (61) upward, and the second limiting part (14) is a terminal clamping piece of the shell wall of the shell (1) extending toward the cavity (12), the terminal clamping piece is adapted to be clamped with the first clamping part (64), and the limiting of the first clamping part (64) on the shell (1) is formed by cooperation of the terminal clamping piece and the supporting block.

4. A thyristor module according to claim 1 or 2, characterized in that: The cover (3) is provided with an extension block (33) extending toward the inside of the shell (1), the extension block (33) is provided with a buckle (34) extending toward the direction of the cavity (12) of the shell (1), the shell (1) is provided with a second clamping part (11) for clamping the buckle (34), the cover (3) extending into the cavity (12) is limited on the shell (1) by cooperation of the buckle (34) and the second clamping part (11).

5. A thyristor module according to claim 3, characterized in that: The first clamping part (64) is arranged on the side of the terminal seat (61), the first clamping part is provided with a passing groove (66) arranged in the upward and downward direction and a protruding block (63) arranged on both sides of the passing groove (66), the terminal (6) embedded in the cavity (12) passes through the passing groove (66) and is clamped on the upper part of the protruding block (63), and the bottom of the first clamping part (64) abuts against the supporting block, thereby limiting the terminal (6) on the shell (1).

6. A thyristor module according to claim 2, characterized in that: The cover (3) is provided with a avoiding groove (31) on one side of the clamping block (62), and the avoiding groove (31) is communicated with the passing cavity (32).

7. A thyristor module according to claim 5, characterized in that: The terminal clamping member comprises two clamping hooks (142) oppositely arranged and extending from the shell (1) toward the cavity opening (12), and a spacing groove (141) between the two clamping hooks (142), and the two clamping hooks (142) are clamped on the two protrusions (63) respectively.

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