CN219696200U - Skeleton and transformer - Google Patents

Abstract

The utility model discloses a framework and a transformer. A skeleton according to one embodiment of the disclosure, comprising: a first body part including a coil winding part on which a first coil is wound and inside which a core insertion hole is arranged, a first connection pin supporting part arranged at one side of the coil winding part, and a second connection pin supporting part arranged at the other side of the coil winding part; and a second body portion combined with the first body portion in a vertical direction and wound with a second coil, in which a receiving hole is arranged for the coil winding portion to be inserted and received, the receiving hole being formed to be larger than the coil winding portion so that an isolation space is formed between the first body portion and the second body member in the receiving hole.

Description

Skeleton and transformer

Technical Field

Embodiments of the present utility model relate to a bobbin and a transformer.

Background

A Transformer (Transformer) is a device that converts a voltage into a voltage required for a corresponding electronic product. Recently, electronic devices including displays have been reduced in size and thickness, and transformers mounted in these electronic devices have also been reduced in size and thickness.

Disclosure of Invention

Technical problem

An object of an embodiment of the present utility model is to provide a bobbin capable of being miniaturized and a transformer including the same.

An object of an embodiment of the present utility model is to provide a bobbin capable of securing an insulation distance and a transformer including the same.

Technical proposal

A skeleton according to one embodiment of the disclosure includes: a first body part including a coil winding part on which a first coil is wound and inside which a core insertion hole is arranged, a first connection pin supporting part arranged at one side of the coil winding part, and a second connection pin supporting part arranged at the other side of the coil winding part; and a second body portion combined with the first body portion in a vertical direction and wound with a second coil, in which a receiving hole is arranged for the coil winding portion to be inserted and received, the receiving hole being formed larger than the coil winding portion so that an isolation space is formed between the first body portion and the second body member in the receiving hole.

The second body part may further include at least one insulation space protruding part protruding from the inside of the winding body part, on which the second coil is wound, toward the receiving hole side.

The isolation space protruding portion may be arranged such that a length protruding toward the accommodation hole side corresponds to a distance of an isolation space between the first body portion and the second body portion.

The skeleton may further comprise: at least one coupling protrusion arranged to protrude upward on an upper surface of the second body part; and a coupling hole disposed on at least one of the first and second connection pin supporting parts, and into which the coupling protrusion is inserted and coupled.

The skeleton may further comprise: a fine setting protrusion arranged to protrude in an outer direction at both sides of an upper end of the coupling protrusion; and a fine setting groove disposed at an edge of the coupling hole, for setting the fine setting protrusion when the first body part is vertically coupled with the second body part.

The second body part may be formed of a flexible material as compared with the first body part so that the coupling protrusion is coupled with the coupling hole in an inserting manner.

The coupling Kong Kebu is disposed at the first connection pin supporting portion, and the first coil wound around the coil winding portion is exposed to the outside through the coupling hole and is connected to the first connection pin member formed at the first connection pin supporting portion.

The coupling holes may be disposed along a length direction of the first connection pin supporting part and longer than the coupling protrusions, so that even if coupled with the coupling protrusions, a space exposed to the outside may be formed.

The second body portion may be disposed above the second body portion such that a width of one side corresponding to the first connection pin supporting portion is greater than a width of the other side corresponding to the second connection pin supporting portion.

The bobbin may further include a spacer protruding downward at an upper end of the second body portion and for securing an insulation distance between the second coil and the first coil connected to the first connection pin support portion.

The spacer may be on the first connection pin support portion and disposed between a first connection pin member for connecting the first coil and the second coil, and have at least one curved section.

The second body part may be arranged such that a width of one side corresponding to the first connection pin supporting part is greater than a width of the other side corresponding to the second connection pin supporting part on an upper side of the second body part, and the bobbin further includes a spacer protruding downward at an upper end of the second body part and for securing an insulation distance between the second coil and the first coil connected to the first connection pin supporting part.

The skeleton may further comprise: a first substrate seating part disposed to protrude downward at both sides of the first connection pin supporting part and seated on a substrate; and a second substrate seating part disposed to protrude downward at both sides of the second connection pin supporting part and seated on the substrate.

The skeleton may further comprise: a first insulating member arranged to cover the second coil at one side of the first body portion and one side of the second body portion; and a second insulating member arranged to cover the second coil at the other side portion of the first body portion and the other side portion of the second body portion.

The first insulating member and the second insulating member may be disposed to cover boundaries between the first body portion and the second body portion at upper and lower sides of the first body portion and upper and lower sides of the second body portion, respectively.

When the coil winding portion is inserted into the receiving hole and received, the lower face of the first connection pin supporting portion and the lower face of the second connection pin supporting portion are respectively disposed on the upper face of the second body portion.

A skeletal transformer according to one embodiment of the disclosure includes: a first body portion comprising: a coil winding part wound with a first coil and having a core insertion hole disposed inside; a first connection pin supporting part disposed at one side of the coil winding part; and a second connection pin supporting portion disposed at the other side of the coil winding portion; a second body portion coupled to the first body portion in a vertical direction and wound with a second coil, in which an accommodating hole is arranged for the coil winding portion to be inserted and accommodated; and a core member including a first core member disposed at an upper side of the first body portion and an upper side of the second body portion, and a second core member disposed at a lower side of the first body portion and a lower side of the second body portion, a portion of at least one of the first core member and the second core member being inserted into the core insertion hole, the receiving hole being formed larger than the coil winding portion so as to form an isolation space between the first body portion and the second body member within the receiving hole.

Advantageous effects

According to the disclosed embodiments, in a state where the first body part and the second body part are vertically coupled, by forming an insulation space between the first body part and the second body part, heat generated in the first coil and the second coil is released through the insulation space, so that a heat dissipation effect of the transformer can be improved.

In addition, by forming the isolation space protruding portion in the isolation space between the first body portion and the second body portion, the isolation space is maintained between the first body portion and the second body portion to provide the fixing force between the first body portion and the second body portion, thereby being capable of preventing shaking.

Further, the second base portion is arranged to have a width of one side larger than that of the other side, and the spacer is arranged at one end portion of the second base portion, so that an insulation distance between the second coil wound around the second body portion and the first coil connected to the first connection pin support portion can be ensured.

In addition, the coil winding part of the first body part is inserted into the receiving hole of the second body part and received, and the coil winding part and the second body part have the same height, so that the thickness of the transformer can be minimized.

In addition, by arranging the first coupling protrusion and the second coupling protrusion on the upper side and the other side of the second base portion, respectively, the first coupling hole and the second coupling hole are arranged in the first connection pin supporting portion and the second connection pin supporting portion, respectively, to connect the first coupling protrusion and the second coupling protrusion, thereby enabling the coupling between the first body portion and the second body portion to be more stable and firm.

Drawings

Fig. 1 is an exploded perspective view of a transformer according to an embodiment of the present utility model.

Fig. 2 is an assembled perspective view of a bobbin in a transformer according to an embodiment of the present utility model.

Fig. 3 is a bottom perspective view of a bobbin in a transformer according to an embodiment of the present utility model.

Fig. 4 is a state diagram of the first body portion and the second body portion before being combined in an embodiment of the present utility model.

Fig. 5 is an exploded side view of a bobbin in a transformer according to an embodiment of the present utility model.

Fig. 6 is a cross-sectional view of a bobbin in a transformer according to an embodiment of the present utility model.

Fig. 7 is a state diagram before attaching an insulating member in a transformer according to an embodiment of the present utility model.

Fig. 8 is a state diagram of an insulating member attached in a transformer according to an embodiment of the present utility model.

Description of the reference numerals

100: a transformer 101: skeleton frame

102: first body portion 104: a second body part

106: core 106-1: a first core part

106-1a: first core body 106-1b: first core protrusion

106-1c: first side lobe 106-2: a second core member

106-2a: second core body 106-2b: second core protrusion

106-2c: second side lobe 110: insulating member

110-1: first insulating member 110-2: second insulating member

111: coil winding portion 113: first connecting pin supporting part

113a: the first connection pin supporting protrusion 115: second connection pin supporting part

119: edge barrier rib 121: a first base part

123: first winding body portion 125: a first cover part

129: core insertion hole 131: first connecting pin part

133: first substrate mounting portion 135: second substrate mounting portion

139: the second connection pin member 141: a second base part

143: second winding body portion 145: a second cover part

147: extension 149: accommodating hole

151: the first coupling protrusion 151a: first fine setting protrusion

153: the first coupling hole 153a: first fine setting groove

155: the second coupling protrusion 155a: second fine setting protrusion

157: the second combining hole 157a: second fine setting groove

159: spacer 159-1: first isolation block

159-2: second spacer 159-3: third isolation block

161: isolation space projection

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings. The following detailed description is provided to facilitate a thorough understanding of the methods, apparatus, and/or systems described in the present specification. This is to be taken by way of illustration and not by way of limitation.

In describing the embodiments of the present utility model, if it is considered that detailed description of known techniques related to the present utility model will obscure the gist of the present utility model, detailed description thereof will be omitted. Further, the terms described later are terms defined in consideration of functions in the present utility model, which may be different according to intention of a user, an operator, or a convention, etc. Accordingly, the definition should be determined based on the contents throughout the specification. The terminology used in the detailed description is for the purpose of describing embodiments of the utility model only and is not intended to be limiting of the utility model. The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In the present specification, the terms "comprises" and "comprising" should be interpreted as referring to a feature, value, step, action, component, part thereof, or combination thereof, and not to the exclusion of any other feature, value, step, action, component, part thereof, or combination thereof, or additional function.

In addition, the use of directional terms such as upper, lower, one side, another, etc., relate to the orientation of the drawings as disclosed. The constituent elements of embodiments of the present utility model may be positioned in various orientations, and thus the use of directional terminology is intended to be illustrative and not limiting.

Furthermore, the terms first, second, etc. may be used for description of various constituent elements, but the constituent elements are not limited by the terms. The term is used for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and conversely, a second component may be named a first component without departing from the scope of the inventive concept.

Fig. 1 is an exploded perspective view of a transformer according to an embodiment of the present utility model, fig. 2 is an assembled perspective view of a bobbin in the transformer according to an embodiment of the present utility model, fig. 3 is a bottom perspective view of the bobbin in the transformer according to an embodiment of the present utility model, fig. 4 is a state diagram before a first body part and a second body part are combined in an embodiment of the present utility model, fig. 5 is an exploded side view of the bobbin in the transformer according to an embodiment of the present utility model, and fig. 6 is a sectional view of the bobbin in the transformer according to an embodiment of the present utility model.

Referring to fig. 1-6, a transformer 100 may include a first body portion 102, a second body portion 104, and a core member 106. The core component 106 may include a first core component 106-1 and a second core component 106-2.

Further, the skeleton 101 may include a first body portion 102 and a second body portion 104. That is, the first body 102 and the second body 104 may constitute a Bobbin (Bobbin) of the transformer as a portion for winding the coil.

The first body portion 102 is wound with the first coil 50. The first body portion 102 may include a coil winding portion 111, a first connection pin support portion 113, and a second connection pin support portion 115.

The coil winding portion 111 may be a member that winds the first coil 50 around the first body portion 102. The coil winding part 111 may include a first base part 121, a first winding body part 123, and a first cover part 125.

The first base portion 121 is disposed between the first and second connection pin supporting portions 113 and 115, and serves to connect the first and second connection pin supporting portions 113 and 115. The first base part 121 may be flat plate-shaped. The lower face of the first base portion 121 is disposed lower than the lower faces of the first connection pin supporting portion 113 and the second connection pin supporting portion 115. Thus, the lower surfaces of the first and second connection pin supporting portions 113 and 115 are disposed on the upper surface of the second body portion 104 while the upper surface of the first body portion 102 and the upper surface of the second body portion 104 may be formed to have the same height.

Further, the lower surface of the first base portion 121 forms a step with the lower surfaces of the first connection pin supporting portion 113 and the second connection pin supporting portion 115, so that the region (lower region of the first base portion 121) around which the first coil 50 is wound can be recognized by eyes. Accordingly, in the coil winding part 111, the first coil 50 can be easily wound to the area under the first base part 121.

The first winding body part 123 is arranged to protrude downward from the lower surface of the first base part 121. The first coil 50 is wound around the outer peripheral surface of the first winding body 123. In the exemplary embodiment, the first winding body part 123 may be formed in a square tubular shape or a cylindrical shape protruding downward from the lower surface of the first base part 121, but is not limited to the shape, and various shapes are possible as long as the outer circumferential surface is capable of winding the first coil 50.

The inner side of the first winding body part 123 may have a core insertion hole 129. A portion of at least one of the first core member 106-1 and the second core member 106-2 is to be inserted into the core insertion hole 129. The core insertion holes 129 may be arranged along the height direction (i.e., the up-down direction) of the first body portion 102. Wherein the height direction may refer to the Z-axis direction in fig. 1. The core insertion hole 129 may be disposed to penetrate the first base part 121. The core insertion hole 129 may be disposed along a length direction of the first body portion 102. The length direction may refer to the X-axis direction in fig. 1.

The first cover portion 125 is located at the lower end of the first winding body portion 123 and is disposed outside the first winding body portion 123. In an exemplary embodiment, the first cover part 125 may be disposed parallel to the first base part 121. That is, the first cover portion 125 is formed in a plate shape extending horizontally outward of the first winding body portion 123 at the lower end of the first winding body portion 123.

With the first cover portion 125 positioned at the lower end of the first winding body portion 123 and disposed outside the first winding body portion 123, the first cover portion 125 may restrict the first coil 50 wound around the outer circumferential surface of the first winding body portion 123 from moving downward, and the first coil 50 may be wound between the first cover portion 125 and the lower surface of the first base portion 121.

The first connection pin supporting portion 113 is disposed at one side of the first base portion 121. The first connection pin supporting part 113 may be connected perpendicularly to the first base part 121. That is, the first connection pin supporting portion 113 is arranged to extend from one side of the first base portion 121 toward the width direction of the first base portion 121. Wherein the width direction may refer to the Y-axis direction in fig. 1.

The outer end (end toward the outside) of the first connection pin support portion 113 may be arranged with at least one first connection pin member 131 for connecting the first coil 50. The first connection pin member 131 may be connected to the first connection pin supporting protrusion 113a, and the first connection pin supporting protrusion 113a is arranged to protrude from an upper surface of the first connection pin supporting portion 113.

The first connection pin member 131 may be arranged to be bent downward. That is, the first connection pin member 131 may be arranged to be vertically bent downward in a state where an end of the first connection pin member 131 is connected with the first connection pin supporting protrusion 113 a. In this case, when the winding device (not shown) winds the coil of the transformer 100, the adjacent transformers 100 do not interfere with each other.

The first substrate seating part 133 may be arranged to protrude from both side ends of the first connection pin supporting part 113 toward the lower part. An end of the first substrate seating portion 133 may be seated on a substrate (not shown). The height of the transformer 100 mounted on the substrate (not shown) may be adjusted by changing the length of the first substrate mounting part 133.

In addition, the first body portion 102 may have an edge barrier wall 119. The edge barrier wall 119 may be arranged to protrude upward along an edge of the first connection pin support portion 113.

The second connection pin support part 115 is disposed at the other side of the first base part 121. That is, the second connection pin supporting portion 115 may be disposed in the opposite direction of the first connection pin supporting portion 113. The second connection pin supporting portion 115 may be arranged to protrude toward the upper portion at the other side of the first base portion 121. The second connection pin supporting portion 115 may be disposed to have a height higher than that of the upper surface of the first base portion 121.

The end of the second connection pin support 115 may have at least one second connection pin part 139 for connecting the second coil 60. The second connection pin part 139 may be arranged to be bent toward the lower portion. That is, the second connection pin member 139 may be arranged to be vertically bent toward the lower portion in a state where an end portion of the second connection pin member 139 is connected to the second connection pin supporting portion 115. In this case, when the winding device (not shown) winds the coil of the transformer 100, the adjacent transformers 100 do not interfere with each other.

The second substrate seating part 135 may be arranged to protrude from both side ends of the second connection pin supporting part 115 toward the lower part. An end of the second substrate seating portion 135 may be seated on a substrate (not shown). The height of the transformer 100 mounted on the substrate (not shown) may be adjusted by changing the length of the second substrate mounting part 135.

In the disclosed embodiment, the first and second substrate seating parts 133 and 135 are formed at both side end portions of the first and second connection pin supporting parts 113 and 115, respectively, so that the load received by the first and second connection pin members 131 and 139 can be dispersed when the transformer 100 is seated on a substrate (not shown).

In addition, each corner of the first body 102 may be rounded with a certain curvature. The first base portion 121 and the first cover portion 125 of the first body portion 102 may be arranged to have the same width throughout the entire region. The widths of the first base portion 121 and the first cover portion 125 may be the same as the height of the first body portion 102, but are not limited thereto.

The second body portion 104 is wound with the second coil 60. The inside of the second body portion 104 may be arranged with an accommodating hole 149 for the coil winding portion 111 of the first body portion 102 to be inserted and accommodated. The accommodation hole 149 may be arranged to penetrate the second body portion 104 in the height direction of the second body portion 104. The receiving hole 149 may be disposed along the length direction of the second body portion 104.

If the first body part 102 moves downward in a state of being located at the upper part of the second body part 104, the coil winding part 111 is inserted and accommodated in the accommodation hole 149. That is, the first body portion 102 and the second body portion 104 will be joined in the vertical direction. At this time, the coil winding portion 111 is surrounded by four sides of the second body portion 104. Thus, the second body portion 104 may protect the first coil 50 from the external environment.

Wherein the size (or area) of the receiving hole 149 may be set to be larger than the size of the coil winding part 111. Thus, when the coil winding portion 111 is inserted into the accommodation hole 149, an isolation space S is formed between the first body portion 102 and the second body portion 104. The isolation space S may be uniformly arranged throughout the entire region between the first body portion 102 and the second body portion 104.

An insulation space S is formed between the first body part 102 and the second body part 104 so that heat generated at the first coil 50 and the second coil 60 can be released through the insulation space S, thereby improving a heat dissipation effect of the transformer 100.

The second body portion 104 may include a second base portion 141, a second winding body portion 143, a second cover portion 145, and an extension portion 147.

The second base portion 141 may be disposed under the first and second connection pin support portions 113 and 115 when the coil winding portion 111 is inserted into the receiving hole 149. The second base part 141 may be disposed at the outside of the first base part 121 at a height corresponding to the first base part 121.

In an exemplary embodiment, the first base part 121 may be disposed at a height lower than the lower surfaces of the first and second connection pin supporting parts 113 and 115 by a thickness corresponding to the second base part 141. At this time, if the second base part 141 is installed at the outside of the first base part 121 and under the first and second connection pin supporting parts 113 and 115, the second base part 141 may be located at a height corresponding to the first base part 121. That is, the upper surface of the second base part 141 and the upper surface of the first base part 121 may be located on the same plane. Also, the lower surface of the second base part 141 and the lower surface of the first base part 121 may be located on the same plane.

The width W1 of one side of the second base portion 141 (corresponding to one side of the first connection pin supporting portion 113) may be set to be greater than the width W2 of the other side of the second base portion 141 (corresponding to one side of the second connection pin supporting portion 115). In this case, an insulation distance between the second coil 60 wound around the second body portion 104 and the first coil 50 connected to the first connection pin support portion 113 can be preliminarily ensured. The width W1 of the second base portion 141 side may refer to a length from one side of the accommodation hole 149 to one end of the second base portion 141. The width W2 of the other side of the second base portion 141 may refer to a length from the other side of the accommodation hole 149 to the other end of the second base portion 141.

The upper face of the second base portion 141 may be convexly arranged to an upper portion with at least one coupling protrusion for coupling with the first body portion 102. In an exemplary embodiment, the first coupling protrusion 151 and the second coupling protrusion 155 may be respectively convexly disposed to the upper portion at one side and the other side of the upper surface of the second base part 141.

Further, the first body part 102 may be arranged with first and second coupling holes 153 and 157 for inserting and coupling the first and second coupling protrusions 151 and 155, respectively. In an exemplary embodiment, the first and second coupling holes 153 and 157 may be disposed at the first and second connection pin supporting parts 113 and 115, respectively. The first and second coupling holes 153 and 157 may be disposed along the length direction of the first and second connection pin supporting parts 113 and 115, respectively. The width of the first coupling hole 153 and the width of the second coupling hole 157 may be set to correspond to the width of the first coupling protrusion 151 and the width of the second coupling protrusion 155, respectively.

Among them, the first and second fine setting protrusions 151a and 155a may be disposed at both sides of the upper end of the first and second coupling protrusions 151 and 155, respectively. The first and second fine setting protrusions 151a and 155a may be convexly disposed in an outer direction at both sides of the upper end of the first and second coupling protrusions 151 and 155, respectively.

Further, the edge of the first coupling hole 153 of the first connection pin supporting part 113 may be arranged with a first fine seating groove 153a for seating the first fine seating protrusion 151 a. In addition, the edge of the second coupling hole 157 of the second connection pin supporting part 115 may be arranged with a second fine seating groove 157a for seating the second fine seating protrusion 155 a. In this case, if the first and second body parts 102 and 104 are pressurized in the vertical direction, the first and second coupling protrusions 151 and 155 are inserted into the first and second coupling holes 153 and 157, respectively, while the first and second fine seating protrusions 151a and 155a are seated and coupled on the first and second fine seating grooves 153a and 157a, respectively.

Wherein, the first coupling protrusion 151 and the second coupling protrusion 15 are respectively disposed at one side and the other side of the upper surface of the second base part 141, so that the coupling between the first body part 102 and the second body part 104 can be more stable and firm.

The first body portion 102 and the second body portion 104 may each be composed of an insulating material and may be composed of different materials. The second body portion 104 may be constructed of a flexible material as compared to the first body portion 102. That is, the first body portion 102 may be constructed of a rigid material as compared to the second body portion 104. In this case, when the first body part 102 and the second body part 104 are pressurized in the vertical direction, the first and second fine installation grooves 153a and 157a can be easily installed while passing through the first and second coupling holes 153 and 157, respectively, by the elasticity possessed by the first and second fine installation protrusions 151a and 155 a. At this time, the first and second coupling protrusions 151 and 155 and the first and second coupling holes 153 and 157 may be coupled in an inserting manner, respectively.

In addition, in the disclosed embodiment, the first and second connection pin supporting parts 113 and 115 are simultaneously formed on the first body part 102, and when the first and second coils 50 and 60 are connected to the first and second connection pin supporting parts 113 and 115, respectively, a welding process will be performed. At this time, the first body 102 is made of a rigid material than the second body 104, and thus has a strong heat-resistant property against heat generated in the welding process.

In addition, when the first coupling hole 153 is formed at the first connection pin supporting portion 113, the first coupling hole 153 functions to directly connect the first coil 50 wound around the coil winding portion 111 with the first connection pin member 131. That is, the first coil 50 wound around the coil winding part 111 may be connected to the first connection pin member 131 after being drawn out to the outside through the first coupling hole 153.

The length of the first coupling hole 153 may be set to be greater than the length of the first coupling protrusion 151 (the first coupling hole 153 corresponds to the width of the first coupling protrusion 151). At this time, the first coupling protrusion 151 may be coupled at one end portion (an end portion close to the first connection pin member 131) of the first coupling hole 153. In this case, even if the first coupling protrusion 151 is coupled with the first coupling hole 153, the other end portion of the first coupling hole 153 will leave a space exposed to the outside, so that the first coil 50 wound around the coil winding part 111 can be drawn to the outside through the exposed space of the first coupling hole 153 and connected with the first connection pin member 131.

Since the isolation space S is formed between the first body 102 and the second body 104, the first coil 50 can be easily removed while preventing the first coil 50 from being sandwiched between the first body 102 and the second body 104 when the first coil 50 wound around the coil winding portion 111 is removed through the exposed space of the first coupling hole 153.

Further, one end portion of the second base portion 141 may be arranged with a spacer 159. The spacer 159 may be for further securing an insulation distance between the second coil 60 wound around the second body portion 104 and the first coil 50 connected to the first connection pin support portion 113. The isolation block 159 may be disposed between the first connection pin part 131 and the second coil 60.

The spacer 159 may be disposed to protrude from one end portion of the second base portion 141 toward the lower portion. The spacer 159 may protrude from an end portion of the second base portion 141 toward a lower portion, and may include at least one curved section. For example, the isolation blocks 159 may include a first isolation block 159-1, a second isolation block 159-2, and a third isolation block 159-3.

The first spacer 159-1 may be disposed from one end portion of the second base portion 141 toward the lower portion. The second isolation block 159-2 may be disposed outward from the end of the first isolation block 159-1. The third isolation block 159-3 may be disposed from an end of the second isolation block 159-2 toward a lower portion.

As described above, the second base portion 141 is arranged such that the width W1 of one side is greater than the width W2 of the other side, and one end portion of the second base portion 141 is arranged with the spacer 159, so that the insulation distance between the second coil 60 wound around the second body portion 104 and the first coil 50 connected to the first connection pin support portion 113 can be ensured.

The second winding body part 143 may be arranged to protrude from the lower surface of the second base part 141 toward the lower part. The second coil 60 may be wound around the outer circumferential surface of the second winding body part 143. In the exemplary embodiment, the second winding body part 143 may have a square tubular shape or a cylindrical shape protruding downward from the lower surface of the second base part 141, but is not limited to the shape, and various shapes may be possible as long as the outer circumferential surface is capable of winding the second coil 60. The second winding body portion 143 may have a receiving hole 149 inside which the coil winding portion 111 is inserted and received.

Further, the inner face of the second winding body part 143 may be arranged with at least one insulation space protrusion 161. The isolation space protrusion 161 may be convexly disposed from the inner face of the second winding body part 143 toward the receiving hole 149 side. The isolation space protrusion 161 may function to maintain the isolation space S between the first body portion 102 and the second body portion 104.

The length of the isolation space protrusion 161 protruding toward the receiving hole 149 side (i.e., the thickness of the isolation space protrusion 161) may be set to correspond to the distance of the isolation space between the first body portion 102 and the second body portion 104. In this case, the space-isolated protrusion 161 can ensure that an additional coupling force is provided when coupling between the first body part 102 and the second body part 104, and prevents shaking by providing a fixing force between the first body part 102 and the second body part 104. A plurality of insulation space protrusions 161 are disposed along the inner face of the second winding body part 143 to be separable from each other.

The second cover portion 145 may be located at a lower end of the second winding body portion 143 and disposed outside the second winding body portion 143. In an exemplary embodiment, the second cover part 145 may be disposed in parallel with the second base part 141. That is, the second cover portion 145 may have a plate shape extending horizontally outside the second winding body portion 143 at the lower end of the second winding body portion 143.

As the second cover portion 145 is disposed from the lower end of the second winding body portion 143 toward the outside of the second winding body portion 143, the second cover portion 145 may restrict the second coil 60 wound around the second winding body portion 143 from moving downward, and the second coil 60 may be wound between the second cover portion 145 and the lower surface of the second base portion 141.

When the first connection pin support portion 113 and the second connection pin support portion 115 are placed on the upper face of the second body portion 104 by inserting the first coil winding portion 111 into the accommodation hole 149, the second cover portion 145 is arranged to correspond to the first cover portion 125 on both sides in the width direction of the first cover portion 125. That is, the upper surface of the second cover part 145 and the upper surface of the first cover part 125 may be located on the same plane (at the same height). The lower face of the second cover 145 and the lower face of the first cover 125 may be located on the same plane (at the same height).

The extension portion 147 may be arranged to extend from both sides of the second cover portion 145. The extension portion may extend downward from both sides of the second cover portion 145. In an exemplary embodiment, the extension portion 147 may extend obliquely from both sides of the second cover portion 145 toward the lower side direction. Here, the extension portion 147 is described as extending from both sides of the second cover portion 145, but is not limited thereto, and the extension portion 147 may also extend from one side of the second cover portion 145.

As described above, the coil winding portion 111 of the first body portion 102 is inserted and received in the receiving hole 149 of the second body portion 104, and the coil winding portion 111 and the second body portion 104 have the same height (i.e., the upper and lower surfaces of the coil winding portion 111 are respectively located on the same plane as the upper and lower surfaces of the second body portion 104), so that the thickness of the transformer 100 can be minimized.

The core member 106 may be used as a magnetic core of the transformer 100. The core component 106 may include a first core component 106-1 and a second core component 106-2. The first core member 106-1 may be disposed on the upper sides of the first body portion 102 and the second body portion 104, and the second core member 106-2 may be disposed on the lower sides of the first body portion 102 and the second body portion 104.

The first core component 106-1 may include a first core body 106-1a, a first core protrusion 106-1b, and a first side protrusion 106-1c. The first core body 106-1a may be flat plate-like. The first core body 106-1a may be disposed on the upper sides of the first body portion 102 and the second body portion 104.

The first core protrusion 106-1b may be arranged to protrude downward from the lower surface of the first core body 106-1 a. The first core protrusion 106-1b may be disposed to correspond to the core insertion hole 129. The first core protrusion 106-1b may be inserted into the core insertion hole 129.

The first side protrusions 106-1c may protrude downward from both sides of the first core body 106-1 a. When the first core body 106-1a is disposed on the upper sides of the first body part 102 and the second body part 104, the first side protrusion 106-1c may be arranged to cover both sides of the second body part 104.

The second core component 106-2 may include a second core body 106-2a, a second core protrusion 106-2b, and a second side protrusion 106-2c. The second core body 106-2a may have a flat plate shape. The second core body 106-2a may be disposed on the underside of the first body portion 102 and the second body portion 104.

The second core protrusion 106-2b may be arranged to protrude upward from the upper surface of the second core body 106-2 a. The second core protrusion 106-2b may be disposed to correspond to the core insertion hole 129. The second core protrusion 106-2b may be inserted into the core insertion hole 129.

The second side protrusions 106-2c may protrude upward from both sides of the second core body 106-2 a. The second side protrusions 106-2c may be arranged to cover both sides of the second body part 104 when the second core body 106-2a is disposed at the lower sides of the first body part 102 and the second body part 104.

Here, the first core member 106-1 and the second core member 106-2 are described as being configured in the form of EE and having a part thereof inserted into the core insertion hole 129, but the present utility model is not limited thereto, and the first core member 106-1 and the second core member 106-2 may be core members of various forms such as an EI type, an EVD type, an EED type, an EP type, an EEH type, and the like. The core member 106 may have a portion of at least one of the first core member 106-1 and the second core member 106-2 inserted into the core insertion hole 129 according to its form.

In addition, the transformer 100 may further include an insulation member to ensure an insulation distance between the first coil 50 and the core member 106, an insulation distance between the second coil 60 and the core member 106, and an insulation distance between the first coil 50 and the second coil 60. Fig. 7 is a state diagram before an insulating member is attached in a transformer according to an embodiment of the present utility model, and fig. 8 is a state diagram of an insulating member attached in a transformer according to an embodiment of the present utility model.

Referring to fig. 7 to 8, the insulating member 110 may include a first insulating member 110-1 and a second insulating member 110-2. In an exemplary embodiment, the insulating member 110 may be attached to the backbone 101 in a form corresponding to the shape of the backbone 101. For example, the insulating member 110 may use an insulating tape, but is not limited thereto.

The first insulating member 110-1 and the second insulating member 110-2 may be attached to both sides of the frame 101 in the length direction, respectively. The first insulating member 110-1 and the second insulating member 110-2 may be respectively arranged to cover the second coil 60 at both side portions of the bobbin 101. The first insulating member 110-1 and the second insulating member 110-2 may be disposed to wrap the upper, side, and lower sides of the both side portions of the bobbin 101, respectively.

At this time, the first and second insulating members 110-1 and 110-2 may be arranged to cover the boundary between the first and second base parts 121 and 141 at the upper side of the backbone 101 and the boundary between the first and second cover parts 125 and 145 at the lower side of the backbone 101. The first insulating member 110-1 and the second insulating member 110-2 may be disposed to be greater than the length of the core insertion hole 129.

The first core member 106-1 and the second core member 106-2 may be mounted so as to be inserted into the core insertion hole 129, respectively, in a state where the first insulating member 110-1 and the second insulating member 110-2 are attached to both side portions of the backbone 101. At this time, the first core member 106-1 and the second core member 106-2 are located outside the first insulating member 110-1 and outside the second insulating member 110-2.

As described above, by disposing the first insulating member 110-1 and the second insulating member 110-2 at both sides of the bobbin 101, the transformer 100 can ensure the insulation distance between the first coil 50 and the core member 106, the insulation distance between the second coil 60 and the core member 106, and the insulation distance between the first coil 50 and the second coil 60.

Although the exemplary embodiments of the present utility model have been described above, it will be understood by those having ordinary skill in the art that various modifications may be made to the above-described embodiments without departing from the scope of the present utility model. Accordingly, the scope of the claims of the present utility model should not be limited to the above-described embodiments, but should be determined based on the appended claims and equivalents thereof.

Claims (15)

1. A skeleton, comprising:

a first body part including a coil winding part on which a first coil is wound and inside which a core insertion hole is arranged, a first connection pin supporting part arranged at one side of the coil winding part, and a second connection pin supporting part arranged at the other side of the coil winding part; and

a second body portion coupled to the first body portion in a vertical direction and wound with a second coil, in which an accommodating hole is arranged for the coil winding portion to be inserted and accommodated,

the receiving hole is formed to be larger than the coil winding portion so that an isolation space is formed between the first body portion and the second body portion within the receiving hole.

2. The bobbin of claim 1, wherein the second body portion further comprises at least one insulation space protruding portion protruding from an inner surface of the winding body portion around which the second coil is wound toward the receiving hole side.

3. The skeleton according to claim 2, wherein the isolation space protruding portion is arranged such that a length protruding toward the accommodation hole side corresponds to a distance of an isolation space between the first body portion and the second body portion.

4. The armature of claim 1, wherein the armature further comprises:

at least one coupling protrusion arranged to protrude upward on an upper surface of the second body part; and

and a coupling hole disposed on at least one of the first and second connection pin supporting parts, and into which the coupling protrusion is inserted and coupled.

5. The armature of claim 4, wherein the armature further comprises:

a fine setting protrusion arranged to protrude in an outer direction at both sides of an upper end of the coupling protrusion; and

and a fine setting groove disposed at an edge of the coupling hole for setting the fine setting protrusion when the first body part is vertically coupled with the second body part.

6. The armature of claim 4, wherein the second body portion is formed of a flexible material as compared to the first body portion such that the coupling protrusion is coupled with the coupling hole in a plug-in manner.

7. The bobbin of claim 4, wherein the coupling hole is disposed at the first connection pin supporting part, and the first coil wound around the coil winding part is exposed to the outside through the coupling hole and is connected with the first connection pin part formed at the first connection pin supporting part.

8. The frame as claimed in claim 7, wherein the coupling holes are disposed along a length direction of the first connection pin supporting part and are longer than the coupling protrusions, so that spaces exposed to the outside are formed even if coupled with the coupling protrusions.

9. The armature of claim 1, wherein the second body portion is disposed above the second body portion such that a width of one side corresponding to the first connection pin support portion is greater than a width of the other side corresponding to the second connection pin support portion.

10. The bobbin of claim 1, further comprising a spacer protruding downward at an upper end of the second body portion and for securing an insulation distance between the second coil and the first coil connected to the first connection pin support portion.

11. The armature of claim 10, wherein the spacer is disposed on the first connector pin support portion between a first connector pin member for connecting the first coil and the second coil, and has at least one curved section.

12. The armature of claim 1, wherein the armature further comprises:

a first substrate seating part disposed to protrude downward at both sides of the first connection pin supporting part and seated on a substrate; and

and a second substrate seating part disposed to protrude downward at both sides of the second connection pin supporting part and seated on the substrate.

13. The armature of claim 1, wherein the armature further comprises:

a first insulating member arranged to cover the second coil at one side of the first body portion and one side of the second body portion; and

a second insulating member arranged to cover the second coil at the other side portion of the first body portion and the other side portion of the second body portion,

wherein the first insulating member and the second insulating member are arranged to cover a boundary between the first body portion and the second body portion at an upper side and a lower side of the first body portion and an upper side and a lower side of the second body portion, respectively.

14. The bobbin of claim 1, wherein a lower face of the first connection pin supporting portion and a lower face of the second connection pin supporting portion are respectively disposed on an upper face of the second body portion when the coil winding portion is inserted into the receiving hole and received.

15. A transformer, comprising:

a first body portion comprising: a coil winding part wound with a first coil and having a core insertion hole disposed inside; a first connection pin supporting part disposed at one side of the coil winding part; and a second connection pin supporting portion disposed at the other side of the coil winding portion;

a second body portion coupled to the first body portion in a vertical direction and wound with a second coil, in which an accommodating hole is arranged for the coil winding portion to be inserted and accommodated; and

a core member including a first core member disposed on an upper side of the first body portion and an upper side of the second body portion, and a second core member disposed on a lower side of the first body portion and a lower side of the second body portion, a portion of at least one of the first core member and the second core member being inserted into the core insertion hole,

the accommodation hole is formed larger than the coil winding portion so that an isolation space is formed between the first body portion and the second body member within the accommodation hole.