Positioning tool for connecting control panel assembly and shell

Abstract

The utility model discloses a positioning tool for connecting a control panel assembly and a shell, which comprises a base capable of being connected with the shell, the base is provided with a plurality of pin holes, a clamping shaft pin is movably arranged in the pin holes, the clamping shaft pin is connected with an ejection structure which enables the clamping shaft pin to be ejected or contracted, and the ejection structure is connected with the shell. The ejection direction of the clamping shaft pin is parallel to the central axis of a mounting hole, used for being matched with a connector of the control panel assembly, in the shell, and the ejection direction of the clamping shaft pin is parallel to the bottom plane of the shell. The clamping structure is arranged to enable the positioning tool to be installed on the shell, then the ejection structure is arranged to press the control panel assembly on the shell, uniform and continuous clamping force is provided for the control panel assembly, the problem of screw loose when a self-tapping screw is matched with a connector is avoided, and the service life of the control panel assembly is prolonged. And meanwhile, the problem that the positions where the bolts or the screws are tightened in sequence are not attached in place or assembly interference occurs is solved, and the rejection rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, and more specifically, to a positioning tooling used for connecting a control panel assembly with a shell. Background Art

[0002] The control board assembly is one of the key components of the controller, including the control board and the connector. Whether the control board assembly is firmly connected to the housing directly affects the performance of the motor controller. When assembling the control board assembly with the housing, the connector needs to be inserted into the mounting hole of the housing and the control board needs to be kept parallel to the bottom surface of the housing. Then, the housing and the connector are fixedly connected with self-tapping screws and the control board and the housing are fixedly connected with bolts.

[0003] At present, when assembling the control panel assembly with the housing, the staff needs to manually lift the control panel so that the control panel connector remains inserted into the housing mounting hole while the control panel remains parallel to the bottom of the housing during the self-tapping screw screwing process. The operation is extremely inconvenient, and there is a problem of uneven force in manual lifting, which causes the self-tapping screws to often slip, and the sealing ring of the connector does not fit properly with the housing, and the sealing effect cannot be achieved. After the threads slip, the connector cannot be reassembled and is scrapped together with the control panel, which greatly increases the production cost. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art such as the inconvenience of manually lifting the control panel and the self-tapping screw slipping caused by uneven force and the poor fit between the sealing ring of the connector and the shell, and to provide a positioning tool for connecting the control panel assembly with the shell.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A positioning tool for connecting a control panel assembly to a shell, comprising a base connectable to the shell, the base being provided with a plurality of pin holes, a clamping shaft pin being movably provided in the pin holes, the clamping shaft pin being connected with an ejection structure for ejecting or retracting the clamping shaft pin, the ejection direction of the clamping shaft pin being parallel to the central axis of a mounting hole on the shell for cooperating with a connector of the control panel assembly, and the ejection direction of the clamping shaft pin being parallel to the bottom plane of the shell.

[0007] The control panel assembly includes a control panel and a connector connected to one side of the control panel, and the housing is provided with a mounting hole for plugging with the connector. After the base and the housing are fixed, the connector located on one side of the control panel is inserted into the mounting hole, the clamping shaft pin is located on the other side of the control panel, and then the clamping shaft pin is ejected by the ejection structure to clamp the control panel between the housing and the clamping shaft pin. The ejection structure can provide a uniform and continuous clamping force for the control panel assembly, avoiding the problem of slipping when the self-tapping screws and the connector are matched. At the same time, the sealing ring fits tightly with the housing, achieving a good sealing effect, and does not require human lifting, making the assembly of the housing and the control panel assembly simpler and more convenient.

[0008] Furthermore, the ejection structure includes a spring for ejecting the clamping shaft pin and a rocker mechanism for contracting the clamping shaft pin, one end of the spring is connected to the clamping shaft pin, and the other end is connected to the inner wall of the pin hole, the rocker mechanism is connected to the clamping shaft pin, and the rocker mechanism is slidably connected to the base, and the sliding direction of the rocker mechanism is parallel to the movement direction of the clamping shaft pin.

[0009] The spring is in a compressed state to push out the clamping pin, and the rocker mechanism slides together with the clamping pin. By rotating the rocker mechanism, further compression of the spring can be limited so that the clamping pin contracts. Rotating the rocker mechanism in the opposite direction can release the compression of the spring so that the clamping pin is pushed out by the spring.

[0010] Furthermore, the rocker mechanism includes a cross bar, a support member, and a handle, the cross bar is slidably connected to the base, the cross bar is connected to the clamping pin and to the support member so that the support member can rotate around the axis of the cross bar, and the handle is fixedly connected to the cross bar or the support member; when the support member is in static state, the support member abuts against the base.

[0011] When the control panel assembly needs to be assembled with the housing, the support is rotated toward the side close to the control panel, and one side of the support is abutted against the base, so that the cross bar can be restricted from sliding toward the ejection direction of the clamping shaft pin, so that the clamping shaft pin maintains a contracted state, so that the control panel assembly can be placed in the housing, and then the plug-in component of the control panel assembly is inserted into the mounting hole on the housing, and the control panel of the control panel assembly is parallel to the bottom plane of the housing. Then, the support is rotated toward the side away from the control panel, so that the other side of the support is abutted against the base, so that the restriction of the support is released, the clamping shaft pin is ejected under the action of the spring, and the cross bar and the clamping shaft pin slide relative to the base, so that the control panel is clamped between the clamping shaft pin and the housing, so that the sealing ring sleeved on the connector is tightly fitted with the inner side wall of the housing. In this way, the positioning between the control panel assembly and the housing can be achieved, so that the control panel assembly and the housing remain relatively fixed during the screwing of the self-tapping screws and bolts. When the support member abuts against the base, a structure such as a protrusion or a groove for abutting against the support member may be provided on the base to abut against the support member.

[0012] Furthermore, the support member is rotatably connected to the cross bar, the cross bar is fixedly connected to the clamping shaft pin, and the handle is fixedly connected to the support member.

[0013] Optionally, the support member is fixedly connected to the cross bar, the cross bar is rotatably connected to the clamping shaft pin, and the handle is fixedly connected to the support member or the cross bar.

[0014] When the support member rotates around the crossbar, the support member can be rotatably connected to the crossbar, the crossbar is fixedly connected to the clamping pin, and the handle is fixedly connected to the support member to rotate the support member. At this time, the spring can also be connected to the crossbar, and the clamping pin can be pushed out or pulled back by pushing the crossbar out or pulling it back. Alternatively, the support member can be fixedly connected to the crossbar, the crossbar is rotatably connected to the clamping pin, and the handle can be fixedly connected to the support member or the crossbar to achieve the rotation of the support member.

[0015] Furthermore, the base is provided with a slot for setting the rocker mechanism, the pin holes are located on both sides of the slot, the slot is connected to the pin holes, and the inner side wall of the slot close to the control panel assembly is in contact with the support member.

[0016] The base is provided with a slot for setting the rocker mechanism, and the pin hole is located on both sides of the slot. The rocker mechanism includes a cross bar, a support member, and a handle. The axis of the cross bar is perpendicular to the ejection direction of the clamping shaft pin. The side walls of the slot are connected with the pin hole so that the cross bar can be inserted into the pin hole and connected with the clamping shaft pin. The support member is connected to the cross bar and can rotate around the axis of the cross bar. The handle is fixedly connected to the cross bar or the support member.

[0017] When the support member abuts against a side of the slot near the ejection direction of the clamping shaft pin, the cross bar is ejected by the support member in the direction of the contraction of the clamping shaft pin, the spring is further compressed, and the clamping shaft pin connected to the cross bar is in a contracted state. At this time, the connector in the control board assembly can be inserted into the mounting hole and the control board can be placed in the shell, and then the handle is turned to make the support member rotate upward or downward around the axis of the horizontal cross bar. Without the restriction of the support member, the clamping shaft pin is ejected by the spring under the action of the spring, and the cross bar also approaches one side of the slot until the cross bar abuts against the side wall of the slot, preventing the clamping shaft pin from falling off from the pin hole. The utility model can switch different states by simply turning the handle through the above-mentioned ejection structure, which is convenient to use, simple in structure and easy to produce. At the same time, the number of the clamping shaft pins can be set as needed and all slide together with the cross bar, so that the clamping shaft pins can be ejected at the same time, making the positioning between the control board assembly and the shell more accurate, and preventing the clamping shaft pin from falling off from the pin hole.

[0018] Furthermore, the opening of the slot faces the top of the base, and a groove for accommodating the handle is provided on the top of the base, and the groove is provided on a side of the base close to the ejection direction of the clamping shaft pin.

[0019] Since the positioning fixture as a whole needs to be fixed to the bottom of the shell, the ejection structure is arranged on one side of the base to press the control panel assembly onto the shell. In order to avoid interference between the handle and the control panel when the handle is rotated, the opening of the slot is upward, and the handle rotates between the vertical upward and horizontal positions. At the same time, since the crossbar is located in the slot, the support member is sleeved on the crossbar, and the handle is connected to the support member, in order to avoid interference between the handle and the base when the handle is rotated to the horizontal position, the groove is arranged on the top of the base for the handle to pass through.

[0020] Furthermore, the support member includes a first contact surface and a second contact surface, the first contact surface is a surface of the support member that contacts the inner side wall of the slot when the clamping pin is in a retracted state, and the second contact surface is a surface of the support member that contacts the inner side wall of the slot when the clamping pin is in an ejected state, and the first contact surface and the second contact surface are connected by an arc surface.

[0021] The support member abuts against the side of the slot so that when the clamping shaft pin is in a retracted state, the first contact surface of the support member abuts against the side of the slot close to the control board. When the handle is rotated to put the clamping shaft pin in an ejected state, the support member and the cross bar are abutted against the side wall of the slot under the action of the spring. At this time, the second contact surface of the support member contacts the side of the slot close to the control board. The first contact surface and the second contact surface are adjacent. In order to make the rotation of the handle smoother and more labor-saving, an arc surface is used to connect the first contact surface and the second contact surface.

[0022] Furthermore, the handle is provided with a bending portion.

[0023] Since the control panel is provided with several precise structures, in order to prevent the handle from contacting the control panel and causing damage to the control panel, a bending portion is provided at a corresponding position of the corresponding handle so that the handle avoids contact with the control panel when the handle is in a horizontal position. A bending portion can also be provided at a handle position corresponding to the groove when the handle is in a horizontal position, and the design of using the bending portion to replace the groove can avoid interference between the handle and the base.

[0024] Furthermore, a limiting block is provided on the base, and a bottom of the limiting block is provided with a slot that is engaged with a separation rib on the shell.

[0025] A plurality of dividing ribs are arranged at the bottom of the shell, and corresponding limiting blocks are arranged to engage with the dividing ribs so that the positioning tool provided by the utility model is installed on the shell. Since the position of the dividing ribs on the base is fixed, the positioning tool can be quickly positioned with high positioning accuracy. The number of the limiting blocks is at least two and at least two of the dividing ribs corresponding to the limiting blocks are not mutually balanced, so that the movement of the positioning tool on the horizontal plane can be limited.

[0026] Furthermore, a positioning block is provided on the base, and the positioning block contacts the bottom of the shell.

[0027] In order to make the positioning tool more stable on the shell, in addition to the limit block and the separation rib clamping, a positioning block support is also provided at the bottom of the shell, so that the support points of the positioning tool are more and the connection with the shell is more stable.

[0028] Beneficial effects of the present invention:

[0029] (1) The utility model provides a clamping structure so that the positioning tooling is installed on the housing, and then provides an ejection structure to press the control panel assembly onto the housing, thereby providing a uniform and continuous clamping force for the control panel assembly, thereby avoiding the problem of slipping when the self-tapping screws are matched with the connector, and at the same time avoiding the problem of poor fit or assembly interference when the bolts or screws are tightened later in the sequence, thereby reducing the scrap rate.

[0030] (2) The ejection structure of the utility model can switch between different states by simply turning the handle, which is easy to use, simple in structure and easy to produce. At the same time, the number of the clamping pins can be set as needed and all slide together with the cross bar, so that the clamping pins can be ejected at the same time, making the positioning between the control panel assembly and the shell more accurate, while preventing the clamping pins from falling off from the pin holes.

[0031] (3) A groove is provided on the top of the base and a curved portion is provided on the handle to prevent interference between the handle and the base or the control panel assembly. The two surfaces of the abutment block that contact the slotted side wall before and after rotation are connected by an arc surface, which can make the rotation of the handle smoother and more labor-saving.

[0032] (4) The limit block is arranged to be clamped with the dividing rib at the bottom of the shell, and the structure of the shell itself is utilized to realize the rapid installation and positioning of the positioning tooling with high positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a schematic diagram of the structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the utility model from another perspective;

[0036] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0037] Figure 5 It is a schematic diagram of the ejection structure of the utility model;

[0038] Figure 6 It is a schematic diagram of the internal structure of the ejection structure of the utility model;

[0039] Figure 7 It is a schematic diagram of the positions of the support member and the base when the clamping shaft pin of the utility model is ejected;

[0040] Figure 8 It is a schematic diagram of the cross bar of the utility model sliding in the slot;

[0041] Fig. 9 This is a schematic diagram of the connection between the utility model and the housing and control panel assembly;

[0042] Fig.10 This is a schematic diagram of the connection between the utility model and the housing and control panel assembly from another perspective.

[0043] Among them, 1-base, 11-pin hole, 12-slot, 13-groove, 2-clamping pin, 3-ejection structure, 31-spring, 32-cross bar, 33-support member, 331-first contact surface, 332-second contact surface, 333-arc surface, 34-handle, 341-bend part, 4-limiting block, 41-slot, 5-positioning block, 6-housing, 61-partitioning rib, 62-mounting hole, 71-control board, 72-connector, 73-sealing ring, 81-self-tapping screw, 82-bolt. DETAILED DESCRIPTION

[0044] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0045] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0046] This embodiment proposes a positioning tool for connecting the control panel assembly and the housing, such as Figures 1 to 10 As shown, it includes a base 1 that can be connected to the shell 6, the base 1 is provided with a plurality of pin holes 11, and a clamping shaft pin 2 is movably provided in the pin hole 11. The clamping shaft pin 2 is connected to an ejection structure 3 that enables the clamping shaft pin 2 to be ejected or retracted. The ejection direction of the clamping shaft pin 2 is parallel to the central axis of the mounting hole 62 on the shell 6 for cooperating with the connector 72 of the control board assembly, and the ejection direction of the clamping shaft pin 2 is parallel to the bottom plane of the shell 6.

[0047] like Fig. 9 and Fig.10 As shown, the control panel assembly includes a control panel 71 and a connector 72 connected to one side of the control panel 71, and the housing 6 is provided with a mounting hole 62 plugged with the connector 72. After the base 1 is fixed to the housing 6, the connector 72 located on one side of the control panel 71 is inserted into the mounting hole 62, and the clamping shaft pin 2 is located on the other side of the control panel 71. Then, the clamping shaft pin 2 is ejected by the ejection structure 3 so as to clamp the control panel 71 between the housing 6 and the clamping shaft pin 2. The ejection structure 3 can provide a uniform and continuous clamping force for the control panel assembly, avoiding the problem of slipping when the self-tapping screw 81 is matched with the connector 72. At the same time, the sealing ring 73 is tightly fitted with the housing 6, achieving a good sealing effect, and does not require human lifting, making the assembly of the housing 6 and the control panel assembly simpler and more convenient.

[0048] In this embodiment, Figures 4 to 8As shown, the ejection structure 3 includes a spring 31 for ejecting the clamping shaft pin 2 and a rocker mechanism for contracting the clamping shaft pin 2. One end of the spring 31 is connected to the clamping shaft pin 2, and the other end is connected to the inner wall of the pin hole 11. The rocker mechanism is connected to the clamping shaft pin 2, and the rocker mechanism is slidably connected to the base 1, and the sliding direction of the rocker mechanism is parallel to the movement direction of the clamping shaft pin 2.

[0049] The spring 31 is in a compressed state to push out the clamping shaft pin 2, and the rocker mechanism slides together with the clamping shaft pin 2. By rotating the rocker mechanism, further compression of the spring 31 can be limited so that the clamping shaft pin 2 contracts. Rotating the rocker mechanism in the opposite direction can release the compression of the spring 31 so that the clamping shaft pin 2 is pushed out by the spring 31.

[0050] In this embodiment, Figures 4 to 8 As shown, the rocker mechanism includes a cross bar 32, a support member 33, and a handle 34. The cross bar 32 is slidably connected to the base 1. The cross bar 32 is connected to the clamping pin 2 and to the support member 33 so that the support member 33 can rotate around the axis of the cross bar 32. The handle 34 is fixedly connected to the cross bar 32 or the support member 33; when the support member 33 is in static state, the support member 33 abuts against the base 1.

[0051] When the control panel assembly needs to be assembled with the housing 6, the support member 33 is rotated toward the side close to the control panel 71, and one side of the support member 33 is abutted against the base 1, so that the cross bar 32 can be restricted from sliding toward the ejection direction of the clamping shaft pin 2, so that the clamping shaft pin 2 maintains a contracted state, so that the control panel assembly can be placed in the housing 6, and then the connector 72 of the control panel assembly is inserted into the mounting hole 62 on the housing 6, and the control panel 71 of the control panel assembly is parallel to the bottom plane of the housing 6. Then, the support member 33 is rotated toward the side away from the control panel 71, so that the other side of the support member 33 is abutted against the base 1, so that the restriction of the support member 33 is released, the clamping shaft pin 2 is ejected under the action of the spring 31, and the cross bar 32 and the clamping shaft pin 2 slide relative to the base 1, so that the control panel 71 is clamped between the clamping shaft pin 2 and the housing 6, so that the sealing ring 73 sleeved on the connector 72 is tightly fitted with the inner side wall of the housing 6. In this way, the control board assembly and the housing 6 can be positioned so that the control board assembly and the housing 6 remain relatively fixed during the screwing of the self-tapping screws 81 and the bolts 82. When the support member 33 abuts against the base 1, a protrusion or groove or other structure for abutting against the support member 33 can be provided on the base 1 to abut against the support member 33.

[0052] In this embodiment, the support member 33 is rotatably connected to the cross bar 32 , the cross bar 32 is fixedly connected to the clamping shaft pin 2 , and the handle 34 is fixedly connected to the support member 33 .

[0053] This embodiment also provides another implementation mode, in which the support member 33 is fixedly connected to the cross bar 32 , the cross bar 32 is rotatably connected to the clamping shaft pin 2 , and the handle 34 is fixedly connected to the support member 33 or the cross bar 32 .

[0054] When the support member 33 rotates around the cross bar 32, the support member 33 may be rotatably connected to the cross bar 32, the cross bar 32 may be fixedly connected to the clamping shaft pin 2, and the handle 34 may be fixedly connected to the support member 33 to rotate the support member 33. At this time, the spring 31 may also be connected to the cross bar 32, and the clamping shaft pin 2 may be pushed out or pulled back by pushing out or pulling back the cross bar 32. Alternatively, the support member 33 may be fixedly connected to the cross bar 32, the cross bar 32 may be rotatably connected to the clamping shaft pin 2, and the handle 34 may be fixedly connected to the support member 33 or the cross bar 32 to realize the rotation of the support member 33.

[0055] In this embodiment, Figure 1 , Figure 5 and Figure 7 As shown, the base 1 is provided with a slot 12 for setting the rocker mechanism, the pin holes 11 are located on both sides of the slot 12, the slot 12 is connected to the pin holes 11, and the inner side wall of the slot 12 close to the control board assembly is in contact with the support member 33.

[0056] When the support member 33 abuts against a side of the slot 12 close to the ejection direction of the clamping shaft pin 2, the cross bar 32 is ejected by the support member 33 in the direction of contraction of the clamping shaft pin 2, and the spring 31 is further compressed. The clamping shaft pin 2 connected to the cross bar 32 is in a contracted state. At this time, the connector 72 in the control board assembly can be inserted into the mounting hole 62 and the control board 71 can be placed in the housing 6. Then the handle 34 is rotated to make the support member 33 rotate upward or downward around the axis of the balance cross bar 32. Without the restriction of the support member 33, the clamping shaft pin 2 is ejected by the spring 31 under the action of the spring 31, and the cross bar 32 also approaches one side of the slot 12 until the cross bar 32 abuts against the side wall of the slot 12 to prevent the clamping shaft pin 2 from falling off from the pin hole 11. The utility model can switch between different states by only turning the handle 34 through the above-mentioned ejection structure 3, is easy to use, has a simple structure and is easy to produce. At the same time, the number of clamping shaft pins 2 can be set as needed and all slide with the cross bar 32, so that the clamping shaft pins 2 can be ejected at the same time, making the positioning between the control board assembly and the shell 6 more accurate, and preventing the clamping shaft pins 2 from falling off from the pin hole 11.

[0057] In this embodiment, Figure 1 , Figure 2 and Figure 5 As shown, the opening of the slot 12 faces the top of the base 1 , and a groove 13 for accommodating the handle 34 is provided on the top of the base 1 . The groove 13 is provided on one side of the base 1 close to the ejection direction of the clamping shaft pin 2 .

[0058] Since the positioning fixture as a whole needs to be fixed to the bottom of the housing 6, the ejection structure 3 is arranged on one side of the base 1 to press the control board assembly onto the housing 6. In order to avoid interference between the handle 34 and the control board 71 when the handle 34 rotates, the opening of the slot 12 is upward, and the handle 34 rotates between the vertical upward and horizontal positions. At the same time, since the crossbar 32 is located in the slot 12, the support member 33 is sleeved on the crossbar 32, and the handle 34 is connected to the support member 33, in order to avoid interference between the handle 34 and the base 1 when the handle 34 rotates to the horizontal position, a groove 13 is provided for the handle 34 to pass through.

[0059] In this embodiment, Figure 6 and Figure 7 As shown, the support member 33 includes a first contact surface 331 and a second contact surface 332. The first contact surface 331 is a surface of the support member 33 that contacts the inner wall of the slot 12 when the clamping pin 2 is in a retracted state, and the second contact surface 332 is a surface of the support member 33 that contacts the inner wall of the slot 12 when the clamping pin 2 is in an ejected state. The first contact surface 331 and the second contact surface 332 are connected by an arc surface 333.

[0060] In this embodiment, a groove 12 is set on the base 1 to abut against the support member 33. The support member 33 abuts against the side of the groove 12 so that when the clamping shaft pin 2 is in a retracted state, the first contact surface 331 of the support member 33 abuts against the side of the groove 12 close to the control board 71. When the handle 34 is rotated to put the clamping shaft pin 2 in an ejected state, the support member 33 and the cross bar 32 are abutted against the side of the groove 12 close to the control board 71 under the action of the spring 31. At this time, the second contact surface 332 of the support member 33 contacts the side of the groove 12, and the first contact surface 331 and the second contact surface 332 are adjacent. In order to make the rotation of the handle 34 smoother and more labor-saving, an arc surface 333 is used to connect the first contact surface 331 and the second contact surface 332.

[0061] In this embodiment, Figures 4 to 6 As shown, the handle 34 is provided with a bent portion 341 .

[0062] Since the control panel 71 is provided with several precision structures, in order to prevent the handle 34 from contacting the control panel 71 and causing damage to the control panel 71, a bending portion 341 is provided at a corresponding position of the corresponding handle 34 so that the handle 34 avoids contact with the control panel 71 when the handle 34 is in a horizontal position. The bending portion 341 can also be provided at a position of the handle 34 corresponding to the groove 13 when the handle 34 is in a horizontal position, and the bending portion 341 is used to replace the groove 13 to avoid interference between the handle 34 and the base 1. Figure 1 As shown, the handle 34 may also be in the shape of a straight rod.

[0063] In this embodiment, Figure 3 and Fig. 9As shown, a limit block 4 is provided on the base 1 , and a clamping groove 41 is provided at the bottom of the limit block 4 to be clamped with the separation rib 61 on the shell 6 .

[0064] A plurality of separation ribs 61 are provided at the bottom of the housing 6, and corresponding limit blocks 4 are provided to engage with the separation ribs 61 so that the positioning tool provided by the utility model is installed on the housing 6. Since the position of the separation ribs 61 on the base 1 is fixed, the positioning tool can be quickly positioned with high positioning accuracy. The number of the limit blocks 4 is at least two and at least two of the separation ribs 61 corresponding to the limit blocks 4 are not mutually balanced, so that the movement of the positioning tool on the horizontal plane can be limited.

[0065] In this embodiment, Figure 3 and Fig. 9 As shown, a positioning block 5 is also provided on the base 1 , and the positioning block 5 contacts the bottom of the shell 6 .

[0066] In order to make the positioning tool more stable on the shell 6, in addition to setting the limit block 4 to clamp the dividing rib 61, a positioning block 5 is also set to support the bottom of the shell 6, so that the support points of the positioning tool are more and the connection with the shell 6 is more stable.

[0067] In this embodiment, Figures 1 to 10 As shown, when the control panel assembly is assembled with the housing 6, the clamping shaft pin 2 is in a contracted state, the connector 72 is inserted into the mounting hole 62, and then the handle 34 is pressed to make the support 33, the clamping shaft pin 2 is pushed out by the spring 31, and the clamping shaft pin 2 presses the control panel 71 on the housing 6, so that the sealing ring 73 sleeved on the connector 72 is tightly fitted with the end surface of the housing 6, and the control panel assembly and the housing 6 are initially fixed. Then, the housing 6 is rotated so that the housing 6 is in a vertical direction and the mounting hole 62 faces upward. The self-tapping screws 81 are respectively inserted into the housing 6 and the connector 72 to fix the two, and the self-tapping screws 81 are tightened with appropriate torque to limit the movement between the housing 6 and the control panel assembly along the insertion direction of the connector 72. After the self-tapping screws 81 are tightened, the housing 6 is rotated so that the housing 6 is in a horizontal position, and the bolts 82 on the control panel 71 are tightened with appropriate torque to limit the displacement of the control panel assembly relative to the housing 6 on the horizontal plane. Finally, the handle 34 is rotated to shrink the clamping pin 2, and the clamping fixture is removed to complete the assembly of the housing 6 and the motor control board assembly.

[0068] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A positioning tool for connecting a control panel assembly to a housing, characterized in that: The invention comprises a base (1) which can be connected to a shell (6), the base (1) being provided with a plurality of pin holes (11), a clamping pin (2) being movably provided in the pin hole (11), the clamping pin (2) being connected with an ejection structure (3) which enables the clamping pin (2) to be ejected or retracted, the ejection direction of the clamping pin (2) being parallel to the central axis of a mounting hole (62) on the shell (6) for cooperating with a connector (72) of a control panel assembly, and the ejection direction of the clamping pin (2) being parallel to the bottom plane of the shell (6).

2. The positioning tool for connecting the control panel assembly and the housing according to claim 1, characterized in that: The ejection structure (3) comprises a spring (31) for ejecting the clamping shaft pin (2) and a rocker mechanism for contracting the clamping shaft pin (2), one end of the spring (31) is connected to the clamping shaft pin (2), and the other end is connected to the inner wall of the pin hole (11), the rocker mechanism is connected to the clamping shaft pin (2), and the rocker mechanism is slidably connected to the base (1), and the sliding direction of the rocker mechanism is parallel to the movement direction of the clamping shaft pin (2).

3. The positioning tool for connecting the control panel assembly and the housing according to claim 2, characterized in that: The rocker mechanism comprises a cross bar (32), a support member (33), and a handle (34); the cross bar (32) is slidably connected to the base (1); the cross bar (32) is connected to the clamping pin (2) and to the support member (33) so that the support member (33) can rotate around the axis of the cross bar (32); the handle (34) is fixedly connected to the cross bar (32) or the support member (33); when the support member (33) is in a static state, there is a surface that abuts against the base (1).

4. The positioning tool for connecting the control panel assembly and the housing according to claim 3, characterized in that: The support member (33) is rotatably connected to the cross bar (32), the cross bar (32) is fixedly connected to the clamping shaft pin (2), and the handle (34) is fixedly connected to the support member (33).

5. The positioning tool for connecting the control panel assembly and the housing according to claim 3, characterized in that: The base (1) is provided with a slot (12) for setting the rocker mechanism, the pin hole (11) is located on both sides of the slot (12), the slot (12) is connected to the pin hole (11), and the inner side wall of the slot (12) close to the control panel assembly is in contact with the support member (33).

6. The positioning tool for connecting the control panel assembly and the housing according to claim 5, characterized in that: The opening of the slot (12) faces the top of the base (1), and the top of the base (1) is provided with a groove (13) for accommodating the handle (34), and the groove (13) is provided on one side of the base (1) close to the ejection direction of the clamping shaft pin (2).

7. The positioning tool for connecting the control panel assembly and the housing according to claim 5 or 6, characterized in that: The support member (33) comprises a first contact surface (331) and a second contact surface (332), wherein the first contact surface (331) is a surface of the support member (33) in contact with the inner side wall of the slot (12) when the clamping pin (2) is in a retracted state, and the second contact surface (332) is a surface of the support member (33) in contact with the inner side wall of the slot (12) when the clamping pin (2) is in an ejected state, and the first contact surface (331) and the second contact surface (332) are connected via an arc surface (333).

8. The positioning tool for connecting the control panel assembly and the housing according to any one of claims 3 to 6, characterized in that: The handle (34) is provided with a bent portion (341).

9. The positioning tool for connecting the control panel assembly and the housing according to claim 1, characterized in that: A limit block (4) is provided on the base (1), and a bottom of the limit block (4) is provided with a slot (41) that is engaged with a separation rib (61) on the housing (6).

10. The positioning tool for connecting the control panel assembly and the housing according to claim 9, characterized in that: The base (1) is also provided with a positioning block (5), and the positioning block (5) is in contact with the bottom of the shell (6).

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