Support structure for an electric radiator and electric radiator

Abstract

The present disclosure relates to a support structure of an electric heater, which is used for mounting a thyristor on a circuit board of the electric heater, the thyristor comprising a body and a pin connected with the body; the support structure comprises a support body, an accommodation space is formed in the inside of the support body, and the body is accommodated in the accommodation space; the support structure further comprises a first clamping part arranged on the support body, and the circuit board is provided with a second clamping part, in the mounted state, the first clamping part and the second clamping part are clamped in cooperation to limit the movement of the support body relative to the circuit board. The thyristor is connected with the circuit board through the support structure, so that the connection between the thyristor and the circuit board is more reliable. Moreover, the support structure supports the thyristor, so that the pin of the thyristor is prevented from being deformed or damaged in the application and transportation process, and the breakage rate of the electric heater is reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electric heating, and in particular to a support structure of an electric heater and the electric heater. BACKGROUND

[0002] With the improvement of people's living standards, electric heaters gradually enter people's lives. Electric heaters have the advantages of convenient installation, environmental protection, durability, etc. Electric heaters are fast, can control temperature, have low power consumption, are very energy-saving and power-saving, and are widely loved by people. Especially in the south where there is no heating supply, electric heaters are the common electrical equipment for users in winter, so that users can resist the cold and damp of winter.

[0003] Silicon controlled rectifiers have the advantages of small size, high efficiency and long service life, and can be used as high-power driving devices to realize small-power control of high-power devices. Therefore, silicon controlled rectifiers are widely used in electric heaters to realize the rapid heating function of electric heaters. After the silicon controlled rectifier is assembled in the electric heater, the silicon controlled rectifier may fall off or deform during use or transportation of the electric heater. Therefore, how to stably install the silicon controlled rectifier in the electric heater is a problem to be solved. SUMMARY

[0004] To overcome the problems in the related art, the present disclosure provides a support structure of an electric heater and the electric heater.

[0005] According to a first aspect of the embodiments of the present disclosure, a support structure of an electric heater is provided for installing a silicon controlled rectifier on a circuit board of the electric heater, the silicon controlled rectifier comprising a body and a pin connected to the body.

[0006] The support structure comprises a support body, an accommodation space is formed in the inside of the support body, and the body is accommodated in the accommodation space.

[0007] The support structure further comprises a first clamping portion provided on the support body, and the circuit board has a second clamping portion, in the installed state, the first clamping portion and the second clamping portion are clamped to limit the movement of the support body relative to the circuit board.

[0008] Optionally, the first clamping portion comprises a plurality of hook body structures, the second clamping portion comprises a clamping through hole penetrating through the circuit board, in the installed state, a plurality of the hook body structures pass through the clamping through hole, and the hook body structures form abutting connection with a first surface of the circuit board; wherein the first surface is away from the support body.

[0009] Optionally, the first clamping portion comprises a ring-shaped hook structure, and the second clamping portion comprises a ring-shaped through hole penetrating through the circuit board, in the mounted state, the ring-shaped hook structure penetrates out of the ring-shaped through hole, and the ring-shaped hook structure is in abutting connection with the first surface of the circuit board.

[0010] Optionally, the support structure further comprises an opening formed in the sidewall of the support body, the opening is in communication with the accommodating space and the outside of the support body, and the pin extends to the outside of the support body through the opening.

[0011] Optionally, the support structure further comprises a partition portion clamped and mounted in the opening, and the pin comprises a plurality of connecting pins, and the partition portion is used for partitioning the plurality of connecting pins.

[0012] Optionally, the partition portion comprises a plurality of ring bodies arranged side by side, the plurality of ring bodies correspond to the plurality of connecting pins in a one-to-one manner, and the connecting pin penetrates out of the accommodating space through the ring body.

[0013] Optionally, the partition portion comprises a plurality of partition protrusions extending from one inner sidewall of the opening to the opposite inner sidewall, and the partition protrusions are arranged between any two adjacent connecting pins.

[0014] Optionally, the support structure further comprises a fixing member, and the silicon-controlled rectifier further comprises a mounting portion fixedly connected with the body, and the mounting portion is fixedly connected with the support body through the fixing member.

[0015] Optionally, the support structure further comprises a first positioning portion formed in the support body, and a second positioning portion is formed on the circuit board, and the first positioning portion is in plug-in cooperation with the second positioning portion.

[0016] Optionally, the first positioning portion comprises a positioning protrusion, and the second positioning portion comprises a positioning groove formed in the second surface of the circuit board, wherein the second surface is adjacent to the support body.

[0017] Optionally, the positioning groove penetrates through the circuit board.

[0018] According to a second aspect of the embodiments of the present disclosure, an electric heater is provided, the electric heater comprising a silicon-controlled rectifier and a circuit board, the silicon-controlled rectifier comprising a body and a pin connected with the body;

[0019] The electric heater further comprises the support structure as described above.

[0020] The technical scheme provided by the embodiment of the present disclosure can have the following beneficial effects: the thyristor is connected with the circuit board through the support structure, so that the connection between the thyristor and the circuit board is more reliable. The support structure supports the thyristor, so that the pins of the thyristor are prevented from being deformed or damaged during application and transportation, and the damage rate of the electric heater is reduced.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 is an exploded schematic view of a support structure according to an exemplary embodiment.

[0024] Figure 2 is a schematic view of a support structure according to an exemplary embodiment.

[0025] Figure 3 is a schematic view of a support structure according to an exemplary embodiment.

[0026] Figure 4 is a schematic view of a circuit board according to an exemplary embodiment.

[0027] Figure 5 is a schematic view of a thyristor according to an exemplary embodiment.

[0028] Figure 6 is a schematic view of a support body according to an exemplary embodiment.

[0029] Figure 7 is a schematic view of a support body according to an exemplary embodiment.

[0030] Figure 8 is a schematic view of a support body according to an exemplary embodiment. DETAILED DESCRIPTION

[0031] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] In the related art, the thyristor and the circuit board jointly form a thyristor circuit control assembly for controlling the electric heater. The thyristor is provided with a pin, and the thyristor is connected with the circuit board through the pin. Meanwhile, the pin can also support the thyristor. However, the pin is limited by the structure and the material, and in the application of the electric heater or the transportation process, the pin has the disadvantage of insufficient supporting force. When impacted or extruded by external force, the pin of the thyristor is prone to deformation or falling off, thereby increasing the loss rate of the electric heater.

[0033] The present disclosure provides a support structure of an electric heater for mounting a thyristor on a circuit board of the electric heater. The thyristor includes a body, and a heat-conducting silicone grease is coated on the body of the thyristor for conducting heat on the body of the thyristor. The thyristor further includes a pin connected with the body, and the pin is welded on the circuit board of the electric heater. The body can be made of plastic or ceramic, for example. The pin can be made of copper material with good electrical conductivity, for example. The support structure includes a support body, and an accommodation space is formed in the inside of the support body. The body of the thyristor is accommodated in the accommodation space to support and protect the body of the thyristor, so as to avoid deformation of the thyristor due to insufficient supporting force of the pin of the thyristor. The support structure further includes a first clamping portion provided on the support body. The clamping portion extends from the support body to the circuit board, and the circuit board is provided with a second clamping portion. In the mounted state, the first clamping portion is clamped with the second clamping portion to limit the movement of the support body relative to the circuit board, so that the connection between the support body and the circuit board is more reliable. The support body is clamped with the circuit board, which is more convenient for disassembly and installation.

[0034] In one example embodiment, as shown in Figures 1-8 The support structure 3 is used for mounting the thyristor 1 on the circuit board 2 of the electric heater. The thyristor 1 includes a body 11 and a pin 12 connected with the body 11. The pin 12 is fixedly connected with the circuit board 2 in a welding manner to realize the communication between the thyristor 1 and the circuit board 2. The body 11 can be made of plastic or ceramic, for example, which has good plastic sealing effect and is durable. The pin 12 can be made of copper material with good electrical conductivity, for example, which is used for conducting the thyristor 1 and the circuit board 2.

[0035] In this embodiment, still referring to Figures 1-8As shown, the support structure 3 further comprises a support body 31, which is used to fill the gap between the body 11 of the triac 1 and the circuit board 2 in the mounted state, so as to avoid insufficient support of the pins 12 of the triac 1 and deformation of the pins 12. The support body 31 has an accommodation space 311 formed inside, and the body 11 is accommodated in the accommodation space 311 to protect the body 11 of the triac 1. The support structure 3 further comprises a first clamping portion 32 arranged on the support body 31, which extends from the support body 31 to the circuit board 2. The circuit board 2 has a second clamping portion 21, and the first clamping portion 32 and the second clamping portion 21 are clamped together in the mounted state of the support structure 3 and the circuit board 2, so as to limit the movement of the support body 31 relative to the circuit board 2 and stably connect the support structure 3 and the circuit board 2. The support body 31 and the circuit board 2 are clamped together by the first clamping portion 32 and the second clamping portion 21, which facilitates installation and disassembly.

[0036] In one example, referring to Figure 1 、 Figure 6 , the first clamping portion 32 comprises a plurality of hook body structures, and the second clamping portion 21 comprises a clamping through hole penetrating the circuit board 2. The plurality of hook body structures penetrate the clamping through hole and are arranged along the circumference of the clamping through hole and spaced apart (not shown in the figure), so as to ensure that the support structure 3 can be smoothly assembled in the clamping through hole. In the mounted state of the support structure 3 and the circuit board 2, the hook body structures are in abutting connection with the first surface of the circuit board 2. The first surface is located at the side end surface away from the support body 31.

[0037] In another example, referring to Figure 1 、 Figure 4 、 Figure 6 , the first clamping portion 32 comprises two hook body structures, and the second clamping portion 21 comprises a clamping through hole penetrating the circuit board 2. A groove 211 is formed on the inner side wall of the clamping through hole and also penetrates the circuit board 2. One of the two hook body structures is arranged in the groove 211, and the other hook body structure is symmetrically arranged in the clamping through hole. In the mounted state of the support structure 3 and the circuit board 2, the two hook body structures penetrate the circuit board 2 and are in abutting connection with the first surface of the circuit board 2. The two hook body structures jointly limit the movement of the support structure 3 relative to the circuit board 2, that is, the effect of fixing the support structure 3 to the circuit board 2 is achieved, and the production cost is saved.

[0038] In one example, referring to Figures 6-8As shown, the hook body structure includes a connecting portion 321 and a bent portion 322 extending from the radial inner side to the radial outer side of the clamping through hole, the bent portion 322 is fixedly connected with the supporting body 31 through the connecting portion 321, the connecting portion 321 is arc plate-shaped, and the connecting portion 321 matches the arc of the clamping through hole to ensure that the connecting portion 321 can be attached to the inner side wall of the clamping through hole. Moreover, the connecting portion 321 is made of a plastic material and can produce a small amount of deformation. When the hook body structure is installed, an external force is applied to the hook body structure, the plurality of connecting portions 321 are deformed, and the connecting portions 321 are bent along the radial extension direction of the clamping through hole, so that the hook body structure can smoothly enter the clamping through hole. The connecting portion 321 is led out of the clamping through hole to the first surface of the circuit board 2, so that the bent portion 322 is in abutting connection with the first surface of the circuit board 2. The bent portion 322 and the connecting portion 321 can be, for example, 90°, so that the bent portion 322 can be attached to the first surface of the circuit board 2. Alternatively, the bent portion 322 and the connecting portion 321 can be, for example, 60°, so that the free end of the bent portion 322 abuts on the first surface of the circuit board 2, further increasing the friction between the bent portion 322 and the first surface of the circuit board 2, and making the connection between the supporting structure 3 and the circuit board 2 more reliable.

[0039] In another example, the first clamping portion 32 includes a ring-shaped hook body structure (not shown in the figure), and the second clamping portion 21 includes a ring-shaped through hole (not shown in the figure) penetrating through the circuit board 2. In the installed state of the supporting structure 3 and the circuit board 2, the ring-shaped hook body structure is led out of the ring-shaped through hole, and the ring-shaped hook body structure is in abutting connection with the first surface of the circuit board 2. The ring-shaped structure increases the contact area with the first surface of the circuit board 2, making the connection between the second clamping portion 21 and the circuit board 2 more reliable. In this example, the ring-shaped hook body structure has an opening, so that an external force can be applied to the ring-shaped hook body structure, and the ring-shaped hook body structure can smoothly enter the ring-shaped through hole. Here, it should be noted that the shape and size of the opening are not specifically limited here, as long as the ring-shaped hook body structure can produce a small amount of bending and smoothly enter the ring-shaped through hole.

[0040] In one example embodiment, as shown in Figure 1 , Figures 6-8 The supporting structure 3 further includes an opening 312 formed in the side wall of the supporting body 31, the opening 312 is used to communicate the accommodating space 311 and the outside of the supporting body 31, and the pin 12 is led out of the opening 312 to the outside of the supporting body 31, so that the pin 12 can extend out of the accommodating space 311 and be fixedly connected with the circuit board 2. At the same time, the total width of the pin 12 in the first direction can be matched with the width of the opening 312, so that the opening 312 protects the pin 12 and avoids damage to the pin 12. The cross section of the opening 312 can be, for example, rectangular, oval, etc., which is not specifically limited here, as long as it can ensure that the pin 12 can normally extend out.

[0041] In the embodiment, referring to Figures 6-8 , the support structure 3 further comprises a partition 313, the partition 313 is clamped and installed in the opening 312, the pin 12 comprises a plurality of connecting pins, the partition 313 is used for separating the plurality of connecting pins and protecting the connecting pins respectively to avoid damage to the connecting pins. Among them, the connecting pins are provided with three, each connecting pin is a control electrode, and the specific electrode polarity is subject to actual conditions, and is not limited here.

[0042] In one example, referring to Figure 8 , the partition 313 comprises a plurality of annular bodies 3131 arranged side by side, and the annular bodies 3131 are three. Adjacent two annular bodies 3131 can be connected to each other or can be arranged at intervals, as long as each annular body 3131 can be fixedly connected with the inner side wall of the opening 312. The annular body 3131 corresponds to the connecting pin one by one, and the connecting pin passes through the inner ring of the annular body 3131 to the containing space 311, separates the connecting pins, and protects the connecting pins respectively.

[0043] In another example, referring to Figures 6-7 , the partition 313 comprises a plurality of partition protrusions 3132 extending from one inner side wall of the opening 312 to the opposite inner side wall, and the partition protrusions 3132 are two. The partition protrusions 3132 are arranged between any adjacent two connecting pins to separate the connecting pins.

[0044] In one example embodiment, as Figure 1 , Figure 5 , Figure 6 , the support structure 3 further comprises a fixing member 33, and the silicon controlled rectifier 1 comprises a mounting portion 13 fixedly connected with the body 11. The mounting portion 13 is arranged on the side wall opposite to the connecting pin 12, and the mounting portion 13 is a connecting lug for example. The mounting portion 13 is fixedly connected with the support body 31 through the fixing member 33. For example, the support body 31 is formed with a first mounting screw hole 314, the mounting portion 13 is formed with a second mounting screw hole 131, and the fixing member 33 comprises a screw 331. The screw 331 is screwed into the first mounting screw hole 314 and the second mounting screw hole 131 in sequence, so that the body 11 of the silicon controlled rectifier 1 is fixedly connected with the support body 31.

[0045] In addition, in order to further protect the surface of the body 11 of the silicon controlled rectifier 1, the fixing member 33 can further comprise a gasket 332, which can be made of carbon steel material for example. The gasket 332 is arranged between the screw 331 and the body 11 of the silicon controlled rectifier 1 to protect the surface of the body 11, so as to avoid that the screw 331 is screwed too tightly in the assembly process and causes damage to the surface of the body 11 of the silicon controlled rectifier 1.

[0046] In one example embodiment, asFigure 2 、 Figure 4 、 Figure 6 As shown in FIG. 3, the support structure 3 further comprises a first positioning portion 34 formed on the support body 31, and the circuit board 2 is provided with a second positioning portion 22, the first positioning portion 34 and the second positioning portion 22 are inserted and matched, so that the support structure 3 can be installed in position.

[0047] The first positioning portion 34 comprises a positioning protrusion, and the second positioning portion 22 comprises a positioning groove formed on the second surface of the circuit board 2, the positioning protrusion and the positioning groove are inserted and connected, so as to limit the movement of the support structure 3 relative to the circuit board 2 in directions other than the installation direction, and ensure that the support structure 3 can be installed in position. In order to further limit the movement of the support structure 3, the positioning protrusion can be provided with multiple positioning protrusions, for example, to avoid the support structure 3 rotating about the positioning protrusion. Alternatively, the positioning protrusion can be square, which can also achieve the purpose of limiting the rotation of the support structure 3 about the positioning protrusion.

[0048] In addition, in order to improve the insertion effect of the positioning protrusion and the positioning groove, the positioning groove can penetrate through the circuit board 2, so that the positioning protrusion can protrude out of the positioning groove, deepening the insertion effect. It can be understood that the number of the positioning groove and the positioning protrusion is consistent, and they are in one-to-one correspondence. The shape of the positioning groove is matched with the outer contour of the positioning protrusion, so that the positioning protrusion can be tightly inserted into the positioning groove.

[0049] The present disclosure provides a support structure of an electric heater, which is used for installing a thyristor on a circuit board of the electric heater and reinforcing the connection between the thyristor and the circuit board. An accommodation space is formed in the inside of the support body, which is used for accommodating the body of the thyristor, so as to surround and protect the body of the thyristor and reduce the loss rate. The thyristor is fixed to the circuit board through the support structure, so as to avoid that the thyristor can only rely on the support of the pin. In the application and transportation of the electric heater, the support structure supports and protects the thyristor, so as to avoid the thyristor from falling off.

[0050] The present disclosure further provides an electric heater, which comprises a thyristor and a circuit board, the thyristor comprises a body and a pin connected to the body, and the thyristor is used for realizing the control of a high-power device by a small-power control. The electric heater further comprises the support structure as described above, which is used for fixing the body of the thyristor and providing support for the pin of the thyristor, so as to avoid that the thyristor falls off or the pin is damaged due to insufficient support of the pin.

[0051] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the application be construed as including any patent, any patent applications, and any patent publications to the extent that such patent, patent applications, and patent publications are consistent with the present disclosure. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0052] It is to be understood that the application is not limited to the precise construction herein disclosed and shown in the drawings, and that various modifications and changes can be effected therein by those skilled in the art without departing from the scope of the application. The scope of the application is to be limited only by the appended claims.

Claims

1. A support structure of an electric heater, used for mounting a thyristor on a circuit board of the electric heater, the thyristor comprising a body and a pin connected with the body; characterized in that the support structure comprises a support body, an accommodation space is formed in the inside of the support body, and the body is accommodated in the accommodation space; the support structure further comprises a first clamping part arranged on the support body, the circuit board is provided with a second clamping part, and in the mounted state, the first clamping part and the second clamping part are clamped to limit the movement of the support body relative to the circuit board, and the support body is used to fill the gap between the body of the thyristor and the circuit board; wherein the support structure further comprises a fixing member and an opening formed in the side wall of the support body, the opening is communicated between the accommodation space and the outside of the support body, the pin is extended to the outside of the support body through the opening and is welded to the circuit board after being bent, the thyristor further comprises a mounting part fixedly connected with the body, and the mounting part is fixedly connected with the support body through the fixing member. the first clamping part comprises a plurality of hook body structures, the second clamping part comprises a clamping through hole penetrating through the circuit board, in the mounted state, a plurality of the hook body structures pass through the clamping through hole, and the hook body structures are in abutting connection with a first surface of the circuit board; wherein the first surface is away from the support body.

2. The support structure for an electric heater as claimed in claim 1, wherein the first clamping part comprises a ring-shaped hook body structure, the second clamping part comprises a ring-shaped through hole penetrating through the circuit board, in the mounted state, the ring-shaped hook body structure passes through the ring-shaped through hole, and the ring-shaped hook body structure is in abutting connection with a first surface of the circuit board; wherein the first surface is away from the support body.

3. The support structure for an electric heater as claimed in claim 1, wherein the support structure further comprises a separation part, the separation part is clamped and mounted in the opening, and the pin comprises a plurality of connecting pins, and the separation part is used to separate the plurality of connecting pins.

4. The support structure for an electric heater as claimed in claim 1, wherein the separation part comprises a plurality of ring bodies arranged side by side, a plurality of the ring bodies correspond to a plurality of the connecting pins one by one, and the connecting pins pass through the ring bodies to the outside of the accommodation space.

5. The support structure for an electric heater as claimed in claim 4, wherein the separation part comprises a plurality of separation protrusions extended from one inner side wall to the opposite inner side wall of the opening, and the separation protrusions are arranged between any two adjacent connecting pins.

6. The support structure for an electric heater as claimed in claim 4, wherein the support structure further comprises a first positioning part formed in the support body, and a second positioning part is formed on the circuit board, and the first positioning part and the second positioning part are inserted and matched.

7. The support structure for an electric heater as claimed in claim 1, wherein the first positioning part comprises a positioning protrusion, and the second positioning part comprises a positioning groove formed in a second surface of the circuit board, wherein the second surface is adjacent to the support body.

8. The support structure for an electric heater as claimed in claim 7, wherein the positioning groove penetrates through the circuit board.

9. The support structure for an electric heater as claimed in claim 8, wherein 10. An electric heater, comprising a thyristor and a circuit board, the thyristor comprising a body and a pin connected with the body; characterized in that the electric heater further comprises the support structure of the electric heater according to any one of claims 1 to 9. ​

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