Pressing device for motor controller

Abstract

The utility model provides a pressing device for a motor controller. The pressing device comprises a bottom plate assembly; the downward pressing assembly comprises a support, a downward pressing adjusting piece and a pressing block, the support is arranged on the bottom plate assembly, the downward pressing adjusting piece is in threaded connection with the support, and the pressing block is connected with the end, close to the bottom plate assembly, of the downward pressing adjusting piece. According to the pressing device for the motor controller, the downward pressing adjusting piece is in threaded connection with the support, the pressing block is connected with the end, close to the bottom plate assembly, of the downward pressing adjusting piece, the pressing block can move up and down only by rotating one downward pressing adjusting piece, and therefore a water channel cover plate of the motor controller is pressed, operation is easy, and the pressing device is convenient to use. And the labor load rate of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor controller testing, in particular to a pressing device for a motor controller. Background Art

[0002] The internal water channel of the motor controller housing assembly is welded by the housing and the water channel cover. During the use of the motor, water circulation is used to dissipate heat. It is necessary to ensure that there are no defective leaks to avoid motor failure. At present, helium leak detection is used for water channel detection. The bottom water channel cover needs to be sealed and pressed to ensure that the water channel opening is closed. Then, the detection fixture head is placed in the water spout, and it is pushed into the vacuum box to make the vacuum degree in the box reach 40Pa. Then, helium is filled at the water spout. The helium discharge rate in the vacuum box is detected by the leak detector to determine whether there is a defect in the water channel that causes helium leakage.

[0003] In the prior art, a plurality of fastening positions are provided on the clamping device, and a bolt is installed at each fastening position, and the bolt is used to clamp the waterway cover plate of the motor controller.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art: the waterway cover plate is compressed by multiple bolts, which is inconvenient to operate and the labor load rate of the operators is high. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the utility model is to provide a clamping device for a motor controller, which can quickly and efficiently complete the clamping of the water channel cover plate of the motor controller.

[0007] In order to achieve the above object, the utility model proposes a clamping device for a motor controller, comprising:

[0008] Base plate assembly;

[0009] The pressing assembly comprises a bracket, a pressing adjusting member and a pressing block. The bracket is arranged on the base plate assembly. The pressing adjusting member is threadedly connected to the bracket. The pressing block is connected to one end of the pressing adjusting member close to the base plate assembly.

[0010] According to the clamping device for the motor controller of the utility model, the clamping device is connected to the bracket thread through the downward pressure adjusting piece, and the clamping block is connected to one end of the downward pressure adjusting piece close to the bottom plate assembly. The clamping block can be moved up and down by only rotating the downward pressure adjusting piece, thereby achieving the clamping of the water channel cover plate of the motor controller. The operation is simple and the labor load rate of the operators is reduced.

[0011] According to one embodiment of the utility model, the base plate assembly includes a plate body and a positioning block, a first positioning pin and a second positioning pin arranged on the plate body. The positioning blocks are multiple in number and are used to contact and limit with the side wall of the motor controller shell. The first positioning pin and the second positioning pin are both used to extend into the connecting portion extending outward from the shell of the motor controller for positioning.

[0012] According to an embodiment of the utility model, the base plate assembly further comprises a cushion block, the cushion block is arranged on the plate body, a plurality of bosses are arranged on the cushion block, and a sealing ring is arranged on the end surface of the bosses.

[0013] According to an embodiment of the utility model, the pressing down assembly further comprises a supporting column, the supporting column is arranged on both sides of the bottom plate assembly, and the end of the bracket is detachably connected to the supporting column.

[0014] According to an embodiment of the utility model, the pressing assembly further includes a pin shaft and a latch, one end of the bracket is connected to the support column via the pin shaft, and the other end of the bracket is connected to the support column via the latch.

[0015] According to an embodiment of the utility model, the overall shape of the bracket is n-shaped, and the bracket includes two columns and a crossbeam connected together.

[0016] According to an embodiment of the utility model, reinforcing ribs are provided between the upright posts and the cross beams.

[0017] According to an embodiment of the utility model, the downward pressure adjusting member is an external hexagonal bolt, and the downward pressure adjusting member is threadedly connected to the crossbeam.

[0018] According to an embodiment of the utility model, the pressing assembly further comprises a connecting sleeve and a presser foot, the connecting sleeve is arranged above the pressing block, the presser foot is arranged below the pressing block, and the connecting sleeve is sleeved on the pressing adjusting member.

[0019] According to an embodiment of the utility model, a plurality of threaded holes are provided on the side wall of the connecting sleeve.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0022] Figure 1 It is a structural schematic diagram of a clamping device for a motor controller proposed in one embodiment of the utility model.

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure of the base plate of the clamping device for the motor controller.

[0024] Figure 3 is along Figure 1 Section view along line AA.

[0025] Figure 4 It is a working schematic diagram of a clamping device for a motor controller according to an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 10-bottom plate assembly, 11-positioning block, 12-pad, 13-first positioning pin, 14-second positioning pin, 15-plate body, 20-pressing assembly, 21-support column, 22-pin shaft, 23-bracket, 24-latch, 25-pressing adjusting member, 26-connecting sleeve, 27-threaded hole, 28-pressing block, 29-pressing foot, 100-pressing device for motor controller, 121-boss, 122-sealing ring, 200-motor controller. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0029] Combination Figures 1 to 4 As shown, the embodiment of the utility model provides a clamping device 100 for a motor controller, comprising: a base plate assembly 10 and a pressing assembly 20 .

[0030] The bottom plate assembly 10 mainly supports the motor controller. The motor controller includes a housing and a waterway cover. The waterway cover can be embedded in the corresponding opening on the housing. The down-pressing assembly 20 mainly plays the role of pressing the waterway cover. After pressing, the housing and the waterway cover form a waterway to facilitate subsequent airtightness testing. The down-pressing assembly 20 includes a bracket 23, a down-pressing adjusting member 25 and a pressing block 28. The bracket 23 is arranged on the bottom plate assembly 10, the down-pressing adjusting member 25 is threadedly connected to the bracket 23, and the pressing block 28 is connected to one end of the down-pressing adjusting member 25 close to the bottom plate assembly 10.

[0031] In order to withstand greater pressure, the base plate assembly 10 is made of hard, non-deformable materials, such as metal or alloy. The bracket 23 of the base plate assembly 10 can be connected to the base plate assembly 10 by one or more connection methods such as welding, threaded connection, and riveting. Rotating the downward pressure adjustment member 25 can realize the movement of the pressure block 28 in the vertical direction. The size of the pressure block 28 is adapted to the size of the waterway cover plate, which can better distribute the downward pressure evenly on the waterway cover plate and achieve a better sealing effect. The pressure block 28 and the downward pressure adjustment member 25 can be detachably connected or integrally connected.

[0032] According to the clamping device for the motor controller of the embodiment of the utility model, the clamping device is connected to the bracket thread through the downward pressure adjusting piece, and the clamping block is connected to one end of the downward pressure adjusting piece close to the bottom plate assembly. The clamping block can be moved up and down by rotating the downward pressure adjusting piece, thereby achieving the clamping of the water channel cover plate of the motor controller. The operation is simple and the labor load rate of the operators is reduced.

[0033] In some embodiments, the base plate assembly 10 includes a plate body 15 and a positioning block 11, a first positioning pin 13 and a second positioning pin 14 arranged on the plate body 15. The number of the positioning blocks 11 is multiple, and is used to contact and limit with the side wall of the shell of the motor controller 200. The first positioning pin 13 and the second positioning pin 14 are both used to extend into the connecting portion extending outward from the shell of the motor controller 200 for precise positioning. In one example, the number of the positioning blocks 11 is 3, wherein two positioning blocks 11 are arranged oppositely to limit the length direction of the shell of the motor controller 200, and the remaining positioning block 11 abuts against the side wall of the shell of the motor controller 200 in the width direction. The outer diameter and position of the first positioning pin 13 and the second positioning pin 14 are set according to the positioning block in the connecting portion extending outward from the shell of the motor controller 200. The positioning block 11 and the positioning pin together realize the correct alignment and placement of the shell of the motor controller 200 during the test process.

[0034] The bottom plate assembly 10 also includes a cushion block 12, which is arranged on the plate body 15. The cushion block 12 is provided with a plurality of bosses 121, and a sealing ring 122 is provided on the end surface of the boss 121. The motor controller 200 is provided with a groove for installing the power module inside the housing, and the number of power modules is usually 3 or 6. The groove is provided with a water inlet hole and a water outlet hole. In order to achieve the sealing of the groove, the outer dimensions of the boss 121 are adapted to the power module, and the number is consistent with the number of power modules, and the sealing ring 122 surrounds the water inlet hole and the water outlet hole to achieve the sealed connection between the groove and the boss 121.

[0035] The pressing assembly 20 further includes support columns 21, which are arranged on both sides of the bottom plate assembly 10, and the ends of the brackets 23 are detachably connected to the support columns 21. The support columns 21 can raise the brackets 23 and reduce the distance the brackets 23 are raised. The number of support columns 21 is designed according to actual needs and is not specifically limited to this. For example, the number of support columns 21 on one side of the bottom plate assembly 10 is 2.

[0036] The pressing assembly 20 further includes a pin 22 and a latch 24. One end of the bracket 23 is connected to the support column 21 through the pin 22, and the other end of the bracket 23 is connected to the support column 21 through the latch 24. The support column 21 has a connecting hole, and both the pin 22 and the support column 21 can be inserted. The difference between the pin 22 and the latch 24 is that one end of the latch 24 has a taper, and this taper design makes it easier to insert and remove the latch 24. When the latch 24 is removed and the pin 22 is not removed, the bracket 23 can be rotated around the pin to open, which is convenient for placing or removing the motor controller 200.

[0037] In some embodiments, Figure 3 As shown, the overall shape of the bracket 23 is n-shaped, and the bracket 23 includes two columns and a crossbeam connected together. A reinforcing rib is provided between the column and the crossbeam to enhance the rigidity and strength of the bracket. The downward pressure adjustment member 25 is an external hexagonal bolt, and the downward pressure adjustment member 25 is threadedly connected to the crossbeam. The external hexagonal bolt has high strength, strong versatility, and low cost.

[0038] In one example, the pressing assembly 20 also includes a connecting sleeve 26 and a presser foot 29. The connecting sleeve 26 is arranged above the pressing block 28, and the presser foot 29 is arranged below the pressing block 28. The connecting sleeve 26 is sleeved on the pressing adjustment member 25. A plurality of threaded holes 27 are provided on the side wall of the connecting sleeve 26. The pressing adjustment member 25 can be abutted by means of a top screw in the threaded hole 27. The connecting sleeve 26 and the presser foot 29 are both integrally formed with the pressing block 28. The number and position of the presser foot 29 are set according to the shape of the waterway cover plate to be pressed, and no specific limitation is made to this. Through the connecting sleeve 26, the pressing adjustment member 25 and the pressing block 28 are designed separately, and the corresponding pressing block 28 can be easily adjusted according to different models of motor controllers, thereby improving the versatility of the pressing device.

[0039] In addition, a nylon pad can be provided under the pad 12 to prevent the motor controller from being crushed during the pressing process and to play a buffering role.

[0040] When the clamping device 100 for the motor controller of the embodiment of the utility model is used, the motor controller housing is clamped on the base plate assembly 10, the latch 24 is inserted, and the downward pressure adjustment member 25 is rotated to press the water channel cover plate and the motor controller housing. In the vacuum box, the helium discharge rate is monitored to determine whether there is a leakage defect in the water channel.

[0041] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of the present invention, the directions or positional relationships indicated by the terms "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0045] Any process or method description in the flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A clamping device for a motor controller, characterized in that: include: Base plate assembly (10); A downward pressing assembly (20), the downward pressing assembly (20) comprising a bracket (23), a downward pressing adjusting member (25) and a pressing block (28), the bracket (23) being arranged on the base plate assembly (10), the downward pressing adjusting member (25) being threadedly connected to the bracket (23), and the pressing block (28) being connected to one end of the downward pressing adjusting member (25) close to the base plate assembly (10).

2. The clamping device for a motor controller according to claim 1, characterized in that: The base plate assembly (10) comprises a plate body (15) and a positioning block (11), a first positioning pin (13) and a second positioning pin (14) arranged on the plate body (15); the positioning blocks (11) are multiple in number and are used to contact and limit with the side wall of the shell of the motor controller (200); the first positioning pin (13) and the second positioning pin (14) are used to extend into the connecting portion of the shell of the motor controller (200) extending outward for positioning.

3. The clamping device for a motor controller according to claim 2, characterized in that: The base plate assembly (10) further comprises a cushion block (12), wherein the cushion block (12) is arranged on the plate body (15), a plurality of bosses (121) are arranged on the cushion block (12), and a sealing ring (122) is arranged on the end surface of the boss (121).

4. The clamping device for a motor controller according to claim 1, characterized in that: The pressing down assembly (20) further comprises a supporting column (21), wherein the supporting column (21) is arranged on both sides of the base plate assembly (10), and the end of the bracket (23) is detachably connected to the supporting column (21).

5. The clamping device for a motor controller according to claim 4, characterized in that: The pressing assembly (20) further comprises a pin shaft (22) and a latch (24); one end of the bracket (23) is connected to the support column (21) via the pin shaft (22); and the other end of the bracket (23) is connected to the support column (21) via the latch (24).

6. The clamping device for a motor controller according to claim 1, characterized in that: The overall shape of the support (23) is n-shaped, and the support (23) comprises two upright columns and a crossbeam connected together.

7. The clamping device for a motor controller according to claim 6, characterized in that: Reinforcing ribs are provided between the upright posts and the cross beams.

8. The clamping device for a motor controller according to claim 6, characterized in that: The downward pressure adjusting member (25) is an external hexagonal bolt, and the downward pressure adjusting member (25) is threadedly connected to the crossbeam.

9. The clamping device for a motor controller according to any one of claims 1 to 8, characterized in that: The pressing assembly (20) further comprises a connecting sleeve (26) and a pressing foot (29), wherein the connecting sleeve (26) is arranged above the pressing block (28), the pressing foot (29) is arranged below the pressing block (28), and the connecting sleeve (26) is sleeved on the pressing adjustment member (25).

10. The clamping device for a motor controller according to claim 9, characterized in that: A plurality of threaded holes (27) are provided on the side wall of the connecting sleeve (26).

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