Electrical equipment fixing device

Abstract

The invention discloses a power equipment fixing device. The power equipment fixing device according to one aspect of the present invention may comprise: a body part for accommodating power equipment; a coupling part protruding from one side surface of the body part and having a coupling space; and a cover portion fixed to the body portion and including a coupling protrusion formed in a protruding manner. The combination protrusion is inserted into the combination space.

Description

TECHNICAL FIELD

[0001] The present application relates to a power device fixing device, and more particularly, to a power device fixing device suitable for an electric vehicle. BACKGROUND

[0002] The trend of limiting the use of fossil fuels in order to prevent climate change is still continuing. Such a trend not only affects the field of power generation for generating power, but also affects daily life.

[0003] Accordingly, there are active researches to drive a vehicle using electric power or hydrogen energy, such as an electric vehicle (EV), a hybrid electric vehicle (HEV), a hydrogen vehicle (HV), etc., instead of a conventional vehicle that is driven using fossil fuels such as gasoline or diesel.

[0004] As described above, the EV, the HEV, the HV, etc., must have a battery for supplying electric power to drive the vehicle. In addition, a battery disconnect unit (BDU) must be provided to directly perform a function of supplying or cutting off electric power of the battery to the electric vehicle. Such a BDU is provided with a relay for cutting off electric power, and the relay is combined with a housing.

[0005] However, when the BDU is installed in the electric vehicle, there is a problem that the relay is detached from the housing due to vibration caused by the electric vehicle. That is, when such a relay is detached from the housing, there is a problem that stability of the electric vehicle is reduced. SUMMARY

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION The present application has been made to solve the above-mentioned problems, and an object of the present application is to provide a power device fixing device that ensures stability of an electric vehicle.

[0007] Technical problems of the present application are not limited to the above-mentioned technical problems, and other technical problems that have not been mentioned can be clearly understood by those skilled in the art to which the present application pertains from the following description.

[0008] MEANS FOR SOLVING THE PROBLEMS According to an aspect of the present application, there is provided a power device fixing device including a body portion for accommodating a power device, a coupling portion protruding from one side of the body portion and having a coupling space, and a cover portion covering an upper side of the body portion, fixed to the body portion, and including a coupling protrusion protruding in a direction perpendicular to a direction of the body portion; the coupling protrusion is inserted into the coupling space.

[0009] At this time, the bonding space can be formed along one direction of the body portion.

[0010] At this time, one side of the main body can support the power equipment, the cover covers one side of the main body, and the connecting protrusion protrudes in a direction perpendicular to the main body.

[0011] At this time, the joint may include: a first joint having a first joint space, and a second joint being disposed separately from the first joint and having a second joint space; the first joint space and the second joint space are formed aligned with each other.

[0012] At this time, the first joint or the second joint may also include a support portion, which connects and supports the first protrusion and the second protrusion. The first protrusion and the second protrusion are separated from each other by the insertion of the joint protrusion while supported by the support portion.

[0013] At this time, the power equipment may have a hole for insertion of the first joint or the second joint, the thickness of the first protrusion is a first length, the thickness of the joint protrusion is a second length, the thickness of the second protrusion is a third length, and the inner diameter of the hole of the power equipment is a fourth length, the fourth length being equal to or less than the sum of the first length, the second length and the third length.

[0014] At this time, the first joint or the second joint may include: a first flange portion extending from the first protrusion and engaging with one side of the body portion; and a second flange portion extending from the second protrusion and engaging with one side of the body portion.

[0015] At this time, the power equipment may have a hole for insertion of the first joint or the second joint, the thickness of the first protrusion is a first length, the thickness of the joint protrusion is a second length, the thickness of the second protrusion is a third length, the inner diameter of the hole of the power equipment is a fourth length, the thickness of the first flange is a fifth length, the thickness of the second flange is a sixth length, and the fourth length is greater than the sum of the first length, the second length and the third length and less than the sum of the first length, the second length, the third length, the fifth length and the sixth length.

[0016] At this time, the main body can form a support space, which is composed of an inner wall that accommodates the support and is separated from the first protrusion and the second protrusion respectively.

[0017] At this time, the connecting protrusion can be disposed between the first protrusion and the second protrusion.

[0018] At this time, the first bonding space and the second bonding space can be arranged on a straight line to correspond to the bonding protrusion.

[0019] At this time, the first joint portion or the second joint portion may include: a first protrusion and a second protrusion, which are spaced apart from and aligned with the first protrusion; the first joint space or the second joint space is formed between the first protrusion and the second protrusion.

[0020] At this time, the connecting protrusion can be disposed between the first protrusion and the second protrusion.

[0021] At this time, the connecting protrusion can be arranged on a straight line between the first protrusion and the second protrusion.

[0022] At this time, the body portion may include a snap-fit ​​protrusion protruding outward from the body portion, and the cover portion includes a snap-fit ​​portion having a snap-fit ​​groove for the snap-fit ​​protrusion to be inserted into. The snap-fit ​​protrusion is inserted into and fixed in the snap-fit ​​groove, thereby fixing the cover portion to the body portion.

[0023] At this time, the snap-fit ​​protrusion can be perpendicular to the engagement protrusion.

[0024] At this time, an opening may be formed on the other side of the main body for a part of the power equipment to pass through, and one side of the power equipment is inserted into and fixed to the joint.

[0025] Invention Effects According to the above structure, in the power equipment fixing device according to an embodiment of the present invention, even if the main body sways left and right due to external vibration when the cover and the main body are engaged, the engaging protrusion is still inserted in the engaging space, thus preventing the cover from separating from the main body due to external vibration.

[0026] In addition, because the cover remains stably connected to the main body, it prevents the electrical equipment from detaching from the housing. Attached Figure Description

[0027] Figure 1 This is a perspective view showing the appearance of a power equipment fixing device according to an embodiment of the present invention.

[0028] Figure 2 This is a perspective view showing the case where the cover of the power equipment fixing device according to an embodiment of the present invention is separated from the body.

[0029] Figure 3This is a perspective view showing the body and connecting portion of the power equipment fixing device according to an embodiment of the present invention.

[0030] Figure 4 This is a perspective view showing an embodiment of the present invention in which the power equipment is housed in the body portion of the power equipment fixing device.

[0031] Figure 5 It is shown Figure 4 The cross-sectional view of A-A' shown in the figure.

[0032] Figure 6 This is a perspective view showing the combination of the cover and the body of the power equipment fixing device according to an embodiment of the present invention.

[0033] Figure 7 This is a diagram showing the cover portion of a power equipment fixing device according to an embodiment of the present invention.

[0034] Figure 8 It is shown Figure 6 The cross-sectional view of B-B' shown.

[0035] Figure 9 It is magnification Figure 8 The diagram shows the joint.

[0036] Figure 10 This is a perspective view that highlights the connection portion of the power equipment fixing device according to an embodiment of the present invention.

[0037] Figure 11 This is a view from above of the joint portion of the power equipment fixing device according to an embodiment of the present invention.

[0038] Figure 12 This figure highlights the connection portion of the power equipment fixing device according to another embodiment of the present invention. Detailed Implementation

[0039] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, enabling those skilled in the art to readily implement the invention. The present invention can be embodied in many different forms and is not limited to the embodiments described herein. For the purpose of clearly illustrating the invention, parts unrelated to the description have been omitted from the drawings, and the same reference numerals have been given to the same or similar constituent elements throughout the specification.

[0040] The words and terms used in this specification and claims should not be limited to their ordinary or dictionary meanings, but should be interpreted in accordance with the principle that inventors can define terms and concepts, to best describe the invention.

[0041] Therefore, the embodiments described in this specification and the structures shown in the accompanying drawings correspond to a preferred embodiment of the present invention and do not represent all the technical ideas of the present invention. Thus, when submitting the present invention, the structure may have various equivalents and modifications for substitution.

[0042] In this specification, the terms "comprising" or "having" are used to describe the presence of a feature, number, step, action, constituent element, component, or combination thereof described in the specification, and do not preclude the presence or additional possibility of one or more other features, numbers, steps, actions, constituent elements, components, or combinations thereof.

[0043] When a constituent element is described as being "in front of," "behind," "above," or "below" another constituent element, unless otherwise specified, this includes not only situations where it is positioned in direct contact with the other constituent element, but also situations where another constituent element is positioned in between. Furthermore, when a constituent element is "connected" to another constituent element, this includes not only direct connections but also indirect connections, unless otherwise specified.

[0044] In the following description, an electrical equipment fixing device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0045] Figure 1 This is a perspective view showing the appearance of a power equipment fixing device according to an embodiment of the present invention. Figure 2 This is a perspective view showing the case where the cover of the power equipment fixing device according to an embodiment of the present invention is separated from the body.

[0046] Reference Figure 1 and Figure 2 According to an embodiment of the present invention, a battery disconnect device (BDU) includes a housing 10 and a power equipment fixing device 100. In this case, the battery disconnect device can cut off the power supply from the battery to electronic devices such as the motor of an electric vehicle.

[0047] The housing 10 houses the electrical device 20 for disconnecting power and the components required to drive the electrical device 20. Here, the electrical device may be a relay. However, the electrical device 20 is not limited to a relay and may be various other electrical devices.

[0048] In addition, Figure 1 In this context, the housing 10 is shown as a flat plate, but is not limited to this, and can be composed of various shapes having a receiving space capable of accommodating the electrical equipment 20.

[0049] The power equipment fixing device 100 fixes the power equipment 20 to the housing 10. The power equipment fixing device 100 includes a body part 110, a connecting part 130, and a cover part 120.

[0050] The body portion 110 is disposed on the upper side of the housing 10. Furthermore, the body portion 110 is formed to wrap around the side of the power device 20. Additionally, although in Figure 1 Two of the aforementioned electrical devices 20 are shown, but the invention is not limited to them; there may be one or more than three such devices.

[0051] Additionally, the body portion 110 includes engaging protrusions 112, 113, 114, and 115 that protrude outward from the body portion 110. The engaging protrusions 112, 113, 114, and 115 include a first engaging protrusion 112, a second engaging protrusion 113, a third engaging protrusion 114, and a fourth engaging protrusion 115.

[0052] The first snap-fit ​​protrusion 112 is formed on the side of the body portion 110.

[0053] The second snap-fit ​​protrusion 113 is formed on the opposite side of the first snap-fit ​​protrusion 112.

[0054] The third snap-fit ​​protrusion 114 is formed between the first snap-fit ​​protrusion 112 and the second snap-fit ​​protrusion 113.

[0055] The fourth snap-fit ​​protrusion 115 is formed on the opposite side of the third snap-fit ​​protrusion 114.

[0056] In addition, according to embodiments of the present invention, the snap-fit ​​protrusions 112, 113, 114, and 115 may be provided in four, but are not limited thereto; they may be two, three, or more than five.

[0057] The connecting portion 130 protrudes from one side of the body portion 110. Here, one side of the body portion 110 may be the upper side. In the following, the connecting portion 130 will be described in detail with reference to the accompanying drawings.

[0058] The cover 120 covers one side of the main body 110. Additionally, the cover 120 covers one side of the electrical device 20. That is, the cover 120 supports the electrical device 20 to prevent it from detaching to one side.

[0059] Additionally, the cover portion 120 includes snap-fit ​​portions 122, 123, 124, and 125, which are formed with snap-fit ​​grooves 122a, 123a, 124a, and 125a for the snap-fit ​​protrusions 112, 113, 114, and 115 to be inserted into. The snap-fit ​​portions 122, 123, 124, and 125 include: a first snap-fit ​​portion 122 with a first snap-fit ​​groove 122a; a second snap-fit ​​portion 123 with a second snap-fit ​​groove 123a; a third snap-fit ​​portion 124 with a third snap-fit ​​groove 124a; and a fourth snap-fit ​​portion 125 with a fourth snap-fit ​​groove 125a.

[0060] The first snap-fit ​​protrusion 112 can be inserted into and fixed in the first snap-fit ​​groove 122a. The second snap-fit ​​protrusion 113 can be inserted into and fixed in the second snap-fit ​​groove 123a. The third snap-fit ​​protrusion 114 can be inserted into and fixed in the third snap-fit ​​groove 124a. The fourth snap-fit ​​protrusion 115 can be inserted into and fixed in the fourth snap-fit ​​groove 125a.

[0061] As described above, when the snap-fit ​​protrusions 112, 113, and 114 are inserted into and fixed in the snap-fit ​​grooves 122a, 123a, 124a, and 125a, the cover portion 120 is fixed to the body portion 110. Since the snap-fit ​​portions 122, 123, 124, and 125 are snapped in place by the snap-fit ​​protrusions 112, 113, 114, and 115, the cover portion 120 is prevented from detaching from the body portion 110.

[0062] Furthermore, when the body portion 110 and the cover portion 120 are engaged, the engaging protrusion 126 is inserted into the engaging groove 131c to fix the first protrusion 131a and the second protrusion 131b, preventing them from moving along the Y-axis. The engaging groove 132c is handled in the same way, with the engaging protrusion 126 inserted and fixed between the first protrusion 132a and the second protrusion 132b. Therefore, the electrical equipment 20 is prevented from detaching from the body portion 110 due to vibrations generated by the electric vehicle's operation.

[0063] Figure 3 This is a perspective view showing the body and connecting portion of the power equipment fixing device according to an embodiment of the present invention. Figure 4 This is a perspective view showing an embodiment of the present invention in which the power equipment is housed in the body portion of the power equipment fixing device. Figure 5 It is shown Figure 4 The cross-sectional view of A-A' shown in the figure.

[0064] like Figure 3As shown, an opening 110a is formed on another side of the body portion 110, the opening 110a connecting the receiving space for accommodating the electrical equipment with the outside of the body portion 110. Here, the other side of the body portion 110 is formed on the opposite side of one side 111 of the body portion 110.

[0065] Furthermore, when the electrical device is housed within the receiving space of the body portion 110, a fixed contact formed on the other side 20b of the electrical device is exposed to the outside of the body portion 110 through the opening 110a. Here, the fixed contact is connected to an external power source or load.

[0066] Furthermore, one side 20a of the power device is supported and fixed by a conventional body portion, while according to an embodiment of the present invention, the other side 20b of the power device is flipped upwards and inverted to be accommodated in the body portion 110. Therefore, since the center of gravity of the power device is downwards, it has the advantage of improving the ease of manufacturing in accommodating the power device in the accommodating space of the body portion 110.

[0067] In addition, such as Figures 3 to 5 As shown, the connecting portions 131 and 132 include connecting spaces 131c and 132c formed along one direction of the body portion 110. Here, one direction of the body portion 110 can be the X-axis direction. However, the direction of the body portion 110 is not limited to the X-axis direction and can be various directions forming a straight line. In addition, the connecting portions 131 and 132 include a first connecting portion 131 and a second connecting portion 132, the second connecting portion 132 being spaced apart from the first connecting portion 131.

[0068] The first joint portion 131 includes a first protrusion 131a and a second protrusion 131b, wherein the second protrusion 131b is spaced apart from and aligned with the first protrusion 131a.

[0069] The first protrusion 131a and the second protrusion 131b can be formed symmetrically. In this case, a first engagement space 131c is formed between the first protrusion 131a and the second protrusion 131b.

[0070] The second joint portion 132 includes a first protrusion 132a and a second protrusion 132b, wherein the second protrusion 132b is spaced apart from and aligned with the first protrusion 132a.

[0071] The first protrusion 132a and the second protrusion 132b can be formed symmetrically. In this case, a second engagement space 132c is formed between the first protrusion 132a and the second protrusion 132b.

[0072] Furthermore, the first bonding space 131c and the second bonding space 132c are formed aligned with each other. That is, the first bonding space 131c and the second bonding space 132c are arranged on a straight line L.

[0073] On the other hand, such as Figure 4 As shown, the power equipment 20 includes: a first extension 21, which is coupled to the first coupling portion 131; and a second extension 22, which is coupled to the second coupling portion 132.

[0074] At this time, as Figure 5 As shown, the first protrusion 131a and the second protrusion 131b are formed in the shape of hooks. The first protrusion 131a and the second protrusion 131b are respectively inserted into and fixed in the hole 21a formed in the first extension 21 and the hole 22b formed in the second extension 222.

[0075] Therefore, the first extension 21 and the second extension 22 are respectively fixed to the first protrusion 131a and the second protrusion 131b. That is, one side 20a of the power equipment 20 is fixed by the connecting portions 131 and 132.

[0076] In the following description, with reference to the accompanying drawings, the combination of the cover portion 120 and the connecting portions 131 and 132 will be explained.

[0077] Figure 6 This is a perspective view showing the combination of the cover and the body of the power equipment fixing device according to an embodiment of the present invention. Figure 7 This is a diagram showing the cover portion of a power equipment fixing device according to an embodiment of the present invention. Figure 8 It is shown Figure 6 The cross-sectional view of B-B' shown.

[0078] First, such as Figure 6 As shown, the cover portion 120 can move from the upper side to the lower side and combine with the body portion 110.

[0079] In addition, such as Figure 7 As shown, the cover portion 120 includes a connecting protrusion 126 that protrudes in a direction perpendicular to the body portion 110. Here, the direction perpendicular to the body portion 110 is the Z-axis direction. Furthermore, the connecting protrusion 126 extends in a protruding state along a direction of the body portion 110.

[0080] Additionally, the connecting protrusion 126 is inserted into the connecting spaces 131c and 132c (see reference). Figure 3At this time, the connecting protrusion 126 is arranged on a straight line between the first protrusion 131a and the second protrusion 131b.

[0081] Additionally, the snap-fit ​​protrusions 112, 113, 114, and 115 are configured to be perpendicular to the engagement protrusion 126.

[0082] Figure 9 It is magnification Figure 8 The diagram of the joint shown is shown. Figure 10 This is a perspective view that focuses on showing the joint of the power equipment fixing device according to an embodiment of the present invention. Figure 11 This is a view from above of the joint portion of the power equipment fixing device according to an embodiment of the present invention.

[0083] like Figure 9 As shown, the power equipment 20 has a hole 21a for insertion of the first joint or the second joint.

[0084] Furthermore, the first connecting portion 131 is provided with a support portion 131d for connecting and supporting the first protrusion 131a and the second protrusion 132a. Additionally, the first protrusion 131a extends vertically from one side of the support portion 131d, and the second protrusion 131b extends vertically from the other side of the support portion 131d.

[0085] Furthermore, the first protrusion 131a can be tilted at a predetermined angle relative to the support portion 131d. Similarly, the second protrusion 131b can be tilted at a predetermined angle relative to the support portion 131d. Therefore, by inserting the connecting protrusion 126 supported by the support portion 131d, the first protrusion 131a and the second protrusion 131b can be separated from each other.

[0086] In addition, the first joint portion 131 or the second joint portion 132 includes a first flange portion 131e and a second flange portion 131f.

[0087] The first flange portion 131e extends vertically from the first protrusion 131a. Additionally, the first flange portion 131e can engage with the outside of the hole 21a in the electrical equipment.

[0088] The second flange portion 131f extends vertically from the second protrusion 131b. Additionally, the second flange portion 131f can engage with the outside of the hole 21a in the electrical equipment.

[0089] Specifically, according to an embodiment of the present invention, the thickness of the first protrusion 131a is a first length a, the thickness of the connecting protrusion 126 is a second length b, the thickness of the second protrusion 131b is a third length c, the inner diameter of the hole 21a of the power equipment is a fourth length d, the thickness of the first flange 131e is a fifth length m, and the thickness of the second flange 131f is a sixth length n.

[0090] Furthermore, the fourth length d is greater than the sum of the first length a, the second length b, and the third length c. Therefore, the connecting protrusion 126 is inserted between the first protrusion 131a and the second protrusion 131b, while the first protrusion 131a and the second protrusion 131b can be inserted into and secured to the hole 21a of the electrical equipment.

[0091] Furthermore, the fourth length d is less than the sum of the first length a, the second length b, the third length c, the fifth length m, and the sixth length n. Therefore, the first flange portion 131e and the second flange portion 131f do not insert into the hole 21a of the power equipment, but are instead stuck outside the hole 21a of the power equipment.

[0092] In addition, such as Figure 10 and Figure 11 As shown, in the state where the connecting protrusion 126 is not inserted, the body portion 110 forms a support space 110c, which is composed of an inner wall 110d that accommodates the support portion 131d and is separated from the first protrusion 131a and the second protrusion 131b respectively.

[0093] As described above, since the body portion 110 has support spaces 110c that are separated from the first protrusion 131a and the second protrusion 131b respectively, the body portion 110 can prevent the body portion 110 from interfering with the operation of the first protrusion 131a and the second protrusion 131b during the operation of moving the first protrusion 131a away from or moving closer to each other.

[0094] Furthermore, by using injection molding to form the first protrusion 131a and the second protrusion 131b protruding from the body portion 110, the ease of manufacturing is improved.

[0095] Furthermore, when comparing the second joint portion 132 with the first joint portion 131, the only difference is in the position where it protrudes from the body portion 110; the other structures are the same. Therefore, the description of the second joint portion 132 is replaced by the description of the first joint portion 131.

[0096] Figure 12This figure highlights the connection portion of the power equipment fixing device according to another embodiment of the present invention.

[0097] Reference Figure 12 According to another embodiment of the present invention, the connecting portion of the power equipment fixing device includes a first protrusion 231a, a second protrusion 231b, and a support portion 231d, but does not include the first flange portion and the second flange portion of the connecting portion. Furthermore, descriptions of the same or similar constituent elements are replaced by the above description.

[0098] Specifically, the thickness of the first protrusion 231a is a first length a, the thickness of the connecting protrusion 126 is a second length b, the thickness of the second protrusion 231b is a third length c, and the inner diameter of the hole 21a of the power equipment is a fourth length d.

[0099] Furthermore, the fourth length d is equal to the sum of the first length a, the second length b, and the third length c. Therefore, the connecting protrusion 126 is inserted between the first protrusion 131a and the second protrusion 131b, while the first protrusion 131a and the second protrusion 131b can be inserted into and secured to the hole 21a of the electrical equipment.

[0100] Furthermore, the fourth length d can be less than the sum of the first length a, the second length b, and the third length c. In this case, during the process of inserting the connecting protrusion 126 between the first protrusion 131a and the second protrusion 131b, the first protrusion 131a and the second protrusion 131b move away from each other in opposite directions and come into close contact with and are fixed to the inner wall of the hole 21a of the electrical equipment.

[0101] Therefore, the fixing force between the first protrusion 131a and the second protrusion 131b and the connecting protrusion 126 is increased, thereby the cover 120 is stably fixed to the body 110.

[0102] Although embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments set forth in this specification, and those skilled in the art who understand the spirit of the present invention can easily propose other embodiments within the same spirit by adding, changing, deleting, or supplementing elements, and such embodiments will also be considered to fall within the scope of the present invention.

[0103] 100: Fixed installations for electrical equipment 110: Ontology Department 120: cover 130: Joint.

Claims

1. A power equipment fixing device, characterized in that, include: The main body is used to house the electrical equipment. A connecting portion, protruding from one side of the main body and having a connecting space, and The cover portion is fixed to the body portion and includes a protruding connecting protrusion; The connecting protrusion is inserted into the connecting space.

2. The power equipment fixing device according to claim 1, characterized in that, The bonding space is formed along one direction of the body portion.

3. The power equipment fixing device according to claim 2, characterized in that, The cover covers one side of the body portion. The cover supports the electrical equipment. The connecting protrusion is formed in a direction perpendicular to one of the directions of the body portion.

4. The power equipment fixing device according to claim 3, characterized in that, The joint includes: The first joint portion forms a first joint space, and The second joint portion is configured separately from the first joint portion and forms a second joint space; The first bonding space and the second bonding space are formed in alignment with each other.

5. The power equipment fixing device according to claim 4, characterized in that, The connecting protrusions are arranged in a straight line.

6. The power equipment fixing device according to claim 5, characterized in that, The first bonding space and the second bonding space are arranged in a straight line to correspond to the bonding protrusion.

7. The power equipment fixing device according to claim 4, characterized in that, The first or second joint includes: The first protrusion, and The second protrusion is formed separately from and aligned with the first protrusion; The first or second bonding space is formed between the first protrusion and the second protrusion.

8. The power equipment fixing device according to claim 7, characterized in that, The first or second joint further includes a support portion, which connects and supports the first protrusion and the second protrusion. The first protrusion and the second protrusion, while supported by the support portion, are moved apart from each other by the insertion of the connecting protrusion.

9. The power equipment fixing device according to claim 8, characterized in that, The power equipment has a hole for insertion of the first joint or the second joint. The thickness of the first protrusion is the first length. The thickness of the joint protrusion is the second length. The thickness of the second protrusion is the third length. The inner diameter of the hole in the power equipment is the fourth length. The fourth length is equal to or less than the sum of the first length, the second length, and the third length.

10. The power equipment fixing device according to claim 8, characterized in that, The first or second joint includes: A first flange portion extends from the first protrusion and engages with one side of the body portion; and The second flange extends from the second protrusion and engages with one side of the body portion.

11. The power equipment fixing device according to claim 10, characterized in that, The power equipment has a hole for insertion of the first joint or the second joint. The thickness of the first protrusion is the first length. The thickness of the joint protrusion is the second length. The thickness of the second protrusion is the third length. The inner diameter of the hole in the power equipment is the fourth length. The thickness of the first flange portion is the fifth length. The thickness of the second flange portion is the sixth length. The fourth length is greater than the sum of the first length, the second length, and the third length, and less than the sum of the first length, the second length, the third length, the fifth length, and the sixth length.

12. The power equipment fixing device according to claim 10, characterized in that, The main body has a support space, which is formed by an inner wall that accommodates the support and is separated from the first protrusion and the second protrusion respectively.

13. The power equipment fixing device according to claim 7, characterized in that, The connecting protrusion is disposed between the first protrusion and the second protrusion.

14. The power equipment fixing device according to claim 13, characterized in that, The connecting protrusion is positioned on a straight line between the first protrusion and the second protrusion.

15. The power equipment fixing device according to claim 1, characterized in that, The body portion includes a snap-fit ​​protrusion that protrudes outward from the body portion. The cover includes a snap-fit ​​portion having a snap-fit ​​groove into which the snap-fit ​​protrusion is inserted. The snap-fit ​​protrusion is inserted into and fixed in the snap-fit ​​groove, thereby fixing the cover to the body.

16. The power equipment fixing device according to claim 15, characterized in that, The snap-fit ​​protrusion is perpendicular to the engagement protrusion.

17. The power equipment fixing device according to claim 1, characterized in that, An opening is formed on the other side of the main body for a portion of the electrical equipment to pass through. One side of the power equipment is inserted into and fixed to the joint.

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